CN108412803A - Bearing structure and compressor with same - Google Patents
Bearing structure and compressor with same Download PDFInfo
- Publication number
- CN108412803A CN108412803A CN201810452279.5A CN201810452279A CN108412803A CN 108412803 A CN108412803 A CN 108412803A CN 201810452279 A CN201810452279 A CN 201810452279A CN 108412803 A CN108412803 A CN 108412803A
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- China
- Prior art keywords
- face
- bearing
- oil film
- oil
- film wedge
- Prior art date
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- 238000007789 sealing Methods 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 5
- 239000003921 oil Substances 0.000 abstract description 181
- 239000010687 lubricating oil Substances 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
- F16C17/022—Sliding-contact bearings for exclusively rotary movement for radial load only with a pair of essentially semicircular bearing sleeves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention provides a bearing structure and a compressor with the same. A plurality of straight surfaces and a plurality of oil wedge surfaces are alternately arranged on a stress part of the bearing structure, so that lubricating oil which is convenient to inject into the bearing can form stable oil films on the oil wedge surfaces, and the oil films can protect the bearing structure, thereby preventing the bearing from being worn and prolonging the service life of the bearing.
Description
Technical field
The present invention relates to compressor apparatus technical fields, in particular to a kind of bearing arrangement and with its compression
Machine.
Background technology
Large size handpiece Water Chilling Units are more and more widely used in plastic cement, plating, electronics, chemical industry, pharmacy, printing, food at present
The industry such as processing, high ferro, subway, market, hotel and civil field, a kind of compression refrigerant of the centrifugal compressor as handpiece Water Chilling Units
Power resources, reliability is most important.And bearing is as centrifugal compressor key core parts, structure and size, matter
The quality of amount directly affects the reliability of centrifugal compressor, and bearing will result directly in centrifugal compressor and cold water once there is exception
Compressor emergency shutdown will seriously affect the brand image of the production, life and company itself of user.
Centrifugal compressor need under start and stop and multiple operating modes reliability service, including such as nominal refrigeration, cryogenic refrigeration, low pressure
The operating modes such as difference refrigeration, High Pressure Difference refrigeration, maximum refrigeration, radial load, axial force that different operating mode lower bearings are born be of different sizes,
Direction may also be different, and the structure and size design of bearing must assure that and can be worked normally under all operating modes.Some uses diameter
Radial load is born to bearing, thrust bearing bears axial force, and journal bearing 2 and thrust bearing 2 is at least needed (to bear in this way
The power of positive and negative both direction), totally 4 bearings, the structure of such sliding bearing lubricating oil circuit will be extremely complex.Also some uses light
The radial-thrust bearing in face, oil film thickness is small, and stability is poor, and bearing is easy to be scratched, wear.
Invention content
The main purpose of the present invention is to provide a kind of bearing arrangement and with its compressor, to solve in the prior art
Bearing is easy the problem of being worn.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of bearing arrangement, which is characterized in that
Including：Bearing body；Forced section, forced section are set at least one end face of bearing body, and forced section has multiple face directly
With multiple oil film wedge faces, multiple face directly is alternately arranged with multiple oil film wedge faces.
Further, it includes the first annular boss, the first end of the first annular boss that bearing body, which has axis hole, forced section,
It is connected with the end face of the first end of bearing body and is coaxially disposed with axis hole, multiple face directly is faced directly including multiple first, multiple
First faces directly on the end face for the second end for being formed in the first annular boss.
Further, multiple oil film wedge faces include multiple first oil film wedges face, and it is cyclic annular convex that multiple first oil film wedges face is formed in first
On the end face of the second end of platform, multiple first oil film wedges face is faced directly with multiple first and is alternately arranged.
Further, the height of the axial direction in bearing body in the first oil film wedge face is along the shaft being set in axis hole
Direction of rotation gradually increases.
Further, oil film wedge face offers the first oil groove with the junction faced directly
Further, the outer edge of the first annular boss offers the first unloading port being connected with the first oil groove.
Further, the width of the first oil groove is w1, wherein the depth of 2mm≤w1≤10mm and/or the first oil groove is
L1, wherein 0.5mm≤L1≤3mm.
Further, the width of the first unloading port is w2, wherein the depth of 0.5mm≤w2≤5mm and/or the first unloading port
Degree is L1, wherein 0.5mm≤L2≤3mm.
Further, it two adjacent oil film wedge faces and faces directly to form thrust face unit, along the shaft being set in axis hole
Direction of rotation, oil film wedge face are located at the front end of thrust face unit, face the tail end positioned at thrust face unit, adjacent two thrust faces directly
Unit is connected by the facing directly for tail end of previous thrust face unit with the oil film wedge face of the front end of the latter thrust face unit,
The junction of two adjacent thrust face units offers the first oil groove.
Further, the geometric center lines of the radial direction of the first oil groove are located at the connection of two adjacent thrust face units
The difference in height of place, the front end in oil film wedge face and the tail end in oil film wedge face is L3, wherein 0.06mm≤L3≤0.3mm.
Further, the outer edge of the first annular boss of part is provided with the first sealing oil edge, the height of the first sealing oil edge
The height that adjacent thereto first is faced directly is identical.
Further, in thrust face unit, the ratio of the area in oil film wedge face than oil the sum of wedge surface and area for facing directly
For t, wherein 0.5≤t ＜ 1.
Further, forced section further includes the second annular boss, the first end of the second annular boss and the of bearing body
The end face at two ends is connected, and multiple face directly is faced directly including multiple second, and multiple second face directly and are formed in the of the second annular boss
On the end face at two ends.
Further, multiple oil film wedge faces include multiple second oil film wedges face, and it is cyclic annular convex that multiple second oil film wedges face is formed in second
On the end face of the second end of platform, multiple second oil film wedges face is faced directly with multiple second and is alternately arranged, and adjacent second faces directly and the
It is provided with the second oil groove between two oil film wedge faces.
Further, the outer edge of the second annular boss offers the second unloading port being connected with the second oil groove.
Further, the outer edge of at least part of second annular boss is provided with the second sealing oil edge.
Further, the height of the second sealing oil edge the second height for facing directly adjacent thereto is identical.
Further, annular oil storage tank is offered on the inner wall of the second end of the second annular boss.
Further, bearing body includes：First axle bearing member, first axle bearing member have the first arc notch；Second bearing
Part, second bearing part have the second arc notch, and second bearing part and first axle bearing member are detachably connected, the first arc notch
It is matched with the second arc notch to form axis hole.
Further, the first annular boss includes：First arc convex, the first arc convex are connected with first axle bearing member
And it is arranged at the first arc notch；Second arc convex, the second arc convex are connected with second bearing part and are located at
It is arranged at two arc notch, the first arc convex is matched with the second arc convex to surround the through-hole being coaxially disposed with axis hole.
Further, at least one of first axle bearing member and second bearing part are provided with oil supplying hole, and oil supplying hole is along bearing
The radial direction of ontology extends and is connected with axis hole.
Further, connecting hole, first axle bearing member and second bearing part are provided on first axle bearing member and second bearing part
It is connected by connecting hole.
Further, one in first axle bearing member and second bearing part is provided with positioning pin, first axle bearing member and second
Another in bearing part is provided with and the matched location hole of positioning pin.
Further, positioning pin is multiple, and multiple positioning pins are positioned apart from first axle bearing member and second bearing part
On opposite ground surface.
Further, the hole wall of axis hole includes third oil film wedge face, the 4th oil film wedge face, the 5th oil film wedge face and arc surface,
In, 1≤R1/R≤1.005,0.001≤L/R≤0.01, L=OO1；O is axle journal axle center；O1 is the axle center in third oil film wedge face；R1
For the radius in third oil film wedge face；R is the radius of arc surface.
Further, starting point at least one in third oil film wedge face, the 4th oil film wedge face and the 5th oil film wedge face is provided with logical
Oil groove.
According to another aspect of the present invention, a kind of compressor, including bearing arrangement are provided, bearing arrangement is above-mentioned axis
Bearing structure.
Apply the technical scheme of the present invention, by alternateed on the forced section of bearing arrangement setting it is multiple face directly with it is more
A oil film wedge face, in this way setting form stable oil film, and then oil film convenient for the lubricating oil in injection bearing on multiple oil film wedge faces
It plays a protective role to bearing arrangement, to prevent bearing wear, improves the service life of bearing.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 shows the structural schematic diagram of the embodiment one of bearing arrangement according to the present invention；
Fig. 2 shows the structural schematic diagrams of the embodiment two of bearing arrangement according to the present invention；
Fig. 3 shows the structural schematic diagram of the embodiment three of bearing arrangement according to the present invention；
Fig. 4 shows the structural schematic diagram of the oil groove and oil film wedge face of the example IV of bearing arrangement according to the present invention；
Fig. 5 shows the structural schematic diagram of the embodiment five of bearing arrangement according to the present invention；
Fig. 6 shows the hole wall structure schematic diagram of the axis hole of the embodiment six of bearing arrangement according to the present invention.
Wherein, above-mentioned attached drawing includes the following drawings label：
10, bearing body；11, axis hole；12, first axle bearing member；13, second bearing part；
20, forced section；21, it first faces directly；22, the first annular boss；221, the first oil groove；222, the first unloading port；
223, the first arc convex；224, the second arc convex；
23, the first oil film wedge face；24, the first sealing oil edge；25, the second annular boss；251, the second oil film wedge face；252, the second oil
Slot；253, the second unloading port；254, the second sealing oil edge；26, it second faces directly；27, annular oil storage tank；
30, oil supplying hole；
40, positioning pin；
51, third oil film wedge face；52, the 4th oil film wedge face；53, the 5th oil film wedge face；60, connector.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
It should be noted that term " first ", " second " etc. in the description and claims of this application and attached drawing
It is for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that the art used in this way
Language can be interchanged in the appropriate case, so that presently filed embodiment described herein for example can be in addition to illustrating herein
Or the sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment need not limit
In those of clearly listing step or unit, but may include not listing clearly or for these processes, method, production
The intrinsic other steps of product or equipment or unit.
For ease of description, herein can with use space relative terms, as " ... on ", " in ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (be rotated by 90 ° or be in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
Now, the illustrative embodiments according to the application are more fully described with reference to the accompanying drawings.However, these are exemplary
Embodiment can be implemented by many different forms, and should not be construed to be limited solely to embodiment party set forth herein
Formula.It should be understood that thesing embodiments are provided so that disclosure herein is thoroughly and complete, and these are shown
The design of example property embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, it is possible to expand
The big thickness of layer and region, and make that identical device is presented with like reference characters, thus omission retouches them
It states.
In conjunction with shown in Fig. 1 to Fig. 6, according to an embodiment of the invention, a kind of bearing arrangement is provided.
Specifically, as shown in Figure 1, the bearing arrangement includes bearing body 10 and forced section 20, forced section 20 is set to axis
Hold at least one end face of ontology 10, forced section 20 have it is multiple face directly with multiple oil film wedge faces, it is multiple to face directly and multiple oil film wedges
Face is alternately arranged.
It is convenient for multiple oil film wedge faces, in this way setting by alternateing multiple face directly of setting on the forced section of bearing arrangement
Lubricating oil in injection bearing forms stable oil film on multiple oil film wedge faces, and then oil film plays protection to bearing arrangement and makees
With to prevent bearing wear, improving the service life of bearing.
In the present embodiment, it includes the first annular boss 22 that bearing body 10, which has axis hole 11, forced section 20, and first is cyclic annular
The first end of boss 22 be connected with the end face of the first end of bearing body 10 and with axis hole 11 be coaxially disposed, it is multiple face directly including
Multiple first face 21 directly, and multiple first face directly on the end face for the second end that 21 are formed in the first annular boss 22.Convenient for first
Oil film wedge face is set between facing directly, and to form stable oil film on oil film wedge face, and then oil film plays protection to bearing arrangement and makees
With.
As shown in Fig. 2, multiple oil film wedge faces include multiple first oil film wedges face 23, multiple first oil film wedges face 23 is formed in the first ring
On the end face of the second end of shape boss 22, multiple first oil film wedges face 23 is faced 21 directly with multiple first and is alternately arranged.It is arranged in this way
Convenient for forming uniform and stable oil film on multiple first oil film wedges face 23, play a protective role to bearing.
Further, the height of the axial direction in bearing body 10 in the first oil film wedge face 23 is along turn being located in axis hole 11
The direction of rotation of axis gradually increases.Convenient for shaft, the lubricating oil in rotation rotates with it and easily enters the first oil film wedge face for setting in this way
23 form uniform and stable oil film.F is the rotation direction for the shaft being set in axis hole 11.
In the present embodiment, oil film wedge face offers the first oil groove 221 with the junction faced directly.Lubricating oil is convenient in setting in this way
Entered on the first oil film wedge face 23 by the first oil groove 221 and form uniform and stable oil film, played a protective role to bearing.
In addition, the outer edge of the first annular boss 22 offers the first unloading port 222 being connected with the first oil groove 221.
Setting improves the mobility of lubricating oil in this way, enhances the heat dissipation effect of lubricating oil.
Specifically, it two adjacent oil film wedge faces and faces directly to form thrust face unit, along the shaft being set in axis hole 11
Direction of rotation, oil film wedge face are located at the front end of thrust face unit, face the tail end positioned at thrust face unit, adjacent two thrust faces directly
Unit is connected by the facing directly for tail end of previous thrust face unit with the oil film wedge face of the front end of the latter thrust face unit,
The junction of two adjacent thrust face units offers the first oil groove 221.The geometric center of the radial direction of first oil groove 221
Line is located at the junction of two adjacent thrust face units, and the difference in height of the front end in oil film wedge face and the tail end in oil film wedge face is L3,
In, 0.06mm≤L3≤0.3mm.As shown in Figures 2 and 3, f1 is the front end in oil film wedge face, and f2 is the tail end in oil film wedge face.Such as Fig. 4 institutes
Show, the width of the first oil groove 221 is w1, wherein the depth of 2mm≤w1≤10mm or the first oil groove 221 is L1, wherein
0.5mm≤L1≤3mm.Certainly, the two can also exist simultaneously.Setting enters the first oil film wedge convenient for the first oil groove 221 in this way
Uniform and stable oil film is formed on face 23.
Further, the width of the first unloading port 222 is w2, wherein 0.5mm≤w2≤5mm or the first unloading port 222
Depth be L1, wherein 0.5mm≤L2≤3mm.Certainly, the two can also exist simultaneously.Setting is convenient for improving profit in this way
The mobility of lubricating oil enhances the heat dissipation effect of lubricating oil.
As shown in Fig. 2, the outer edge of the first partial annular boss 22 is provided with the first sealing oil edge 24, the first sealing oil edge
The height that highly adjacent thereto first is faced directly is identical.Setting is convenient for playing backstop to lubricating oil by the first sealing oil edge 24 in this way
Effect improves the ability of bearing arrangement carrying axial force.
Further, in thrust face unit, the ratio of the area in oil film wedge face than oil the sum of wedge surface and area for facing directly
For t, wherein 0.5≤t ＜ 1.Setting can be played the role of carrying axial force in this way, play a protective role to bearing arrangement.
As shown in figure 3, forced section 20 further includes the second hollow annular boss 25, the first end of the second annular boss 25 with
The end face of the second end of bearing body 10 is connected, and multiple face directly faces 26 directly including multiple second, and multiple second face 26 formation directly
In on the end face of the second end of the second annular boss 25.Setting in the both sides of bearing arrangement convenient for all forming oil film in this way, in this way
It enables to the bearing to can be good at carrying to come to the axial force of the other side, improves the reliability of the bearing arrangement, due to
Bearing arrangement in the prior art, which is used to carrying, to be come to the axial force in the same direction, when needs are realized in multiple directions
Axial force when realizing carrying, those skilled in the art is realized by the way that multiple bearings are arranged.
In the present embodiment, multiple oil film wedge faces include multiple second oil film wedges face 251, and multiple second oil film wedges face 251 is formed in
On the end face of the second end of second annular boss 25, multiple second oil film wedges face 251 is faced 26 directly with multiple second and is alternately arranged, phase
Adjacent second faces 26 and second directly and is provided with the second oil groove 252 between oil film wedge face 251.Setting is convenient for passing through the second oil groove in this way
Lubricating oil is imported into the second oil film wedge face 251 by 252 forms oil film to reach the protective effect to bearing.
As shown in figure 3, the outer edge of the second annular boss 25 offers the second unloading port being connected with the second oil groove 252
253.Setting improves thermal diffusivity convenient for enhancing the mobility of lubricating oil in this way.Wherein, the second end of the second annular boss 25
Inner wall on offer annular oil storage tank 27, the depth of annular oil storage tank 27 is 0-10mm.
In the present embodiment, the outer edge of at least part of second annular boss 25 is provided with the second sealing oil edge 254.In this way
It is arranged so that the second sealing oil edge 254 plays backstop action, raising bearing arrangement carrying axle to the lubricating oil of the second annular boss 25
To the ability of power.Wherein, the height of the second sealing oil edge 254 it is adjacent thereto second face directly 26 height it is identical.Wherein it is possible to will
The structure setting of second annular boss 25 is at mode identical with the structure of the first annular boss 22, it is of course also possible to by second
The structure setting of annular boss 25 is at difference identical as the structure of the first annular boss 22.
In the present embodiment, multiple distances faced directly to the end face of bearing body 10 are equal.
As shown in Figure 1, bearing body 10 includes first axle bearing member 12 and second bearing part 13, first axle bearing member 12 has the
There is the second arc notch, second bearing part 13 removably to connect with first axle bearing member 12 for one arc notch, second bearing part 13
It connects, the first arc notch is matched with the second arc notch to form axis hole 11.Setting is convenient for dismantling bearing body in this way.
In the present embodiment, the first annular boss 22 include the first arc convex 223 and the second arc convex 224, first
Arc convex 223 is connected with first axle bearing member 12 and is arranged at the first arc notch, the second arc convex 224 and second
Bearing part 13 is connected and is arranged at the second arc notch, and the first arc convex 223 is matched with the second arc convex 224
To surround the through-hole being coaxially disposed with axis hole 11.By the way that the first annular boss 22 is removably disposed into the first arc convex
223 and second arc convex 224, in this way setting be easily installed required axis.
In the present embodiment, at least one of first axle bearing member 12 and second bearing part 13 are provided with oil supplying hole 30, supply
Oilhole 30 extends along the radial direction of bearing body 10 and is connected with axis hole 11.Setting is convenient for injecting by oil supplying hole 30 in this way
To inside bearing arrangement.
Wherein, connecting hole, first axle bearing member 12 and second bearing are provided on first axle bearing member 12 and second bearing part 13
Part 13 is connected by connecting hole.
As shown in figure 5, one in first axle bearing member 12 and second bearing part 13 is provided with positioning pin 40, first axle bearing member
12 and second bearing part 13 in another be provided with and 40 matched location hole of positioning pin.Setting is convenient for passing through positioning in this way
First axle bearing member 12 and the accurate positionin of second bearing part 13 are attached by connector 60 by pin 40 again.
Further, positioning pin 40 is multiple, and multiple positioning pins 40 are positioned apart from first axle bearing member 12 and second
Bearing part 13 is with respect on ground surface.In this way setting convenient for by multiple positioning pins 40 by first axle bearing member 12 and second bearing part 13
Accurate positionin is attached by connector 60 again.
As shown in fig. 6, the hole wall of axis hole 11 includes third oil film wedge face 51, the 4th oil film wedge face 52, the 5th oil film wedge face 53 and circle
The formation of cambered surface 54, wherein 1≤R1/R≤1.005,0.001≤L/R≤0.01, L=OO1；O is axle journal axle center；O1 is third oil
The axle center of wedge surface 51；R1 is the radius in third oil film wedge face 51；R is the radius of arc surface 54.Setting is convenient for the shape in axis hole in this way
At stable oil film, and make shaft at high speed can stable operation.
The bearing arrangement of above-described embodiment can be also used for air-conditioner device technical field, i.e., it is according to the present invention another
Aspect provides a kind of compressor.The compressor includes bearing arrangement, and bearing arrangement is the bearing arrangement in above-described embodiment.
By the technical solution of the application, than it is opposite reduced using individual journal bearing and thrust bearing 50% axis
Quantity is held, lubricant oil road structure complexity reduces by 50% or more.
By the technical solution of the application, opposite smooth surface thrust face structure, oil film thickness increases 100% or more, is conducive to
Rotor is run steadily in the long term.
By the technical solution of the application, lubricating oil utilization rate improves 167%, improves the thrust face i.e. fuel feeding in oil film wedge face
Ability reduces bearing temperature.
By the technical solution of the application, bearing holds dirty ability and greatly promotes, and bearing scratches, wear problem is reduced from 18%
To 0%.
By the technical solution of the application, bearing installation accuracy improves 10% or so, makes three directions of x, y, z can essence
Determine position.
In the present embodiment, by combining in the forced section in the direction of radial direction, both ends of the surface on same bearing, reduce bearing
Quantity simplifies centrifugal compressor shafting structure and lubricant oil road structure.
First oil film wedge face and the second oil film wedge face branch are 6 to 20, oil film wedge depth 0.06mm between 0.30mm, oil film wedge
Convergence direction is consistent with the rotation direction of rotor, and the radial arrangement in oil film wedge face has sealing oil edge, and the height of sealing oil edge is the same as the height faced directly
Degree, the front in each oil film wedge face offer oil groove, and each oil groove radial end face is provided with unloading port, Lubrication Film Thickness is made to increase
Greatly, bearing temperature reduces, and holds dirty capability improving, ensures that rotor can be run steadily in the long term, bearing is not easy to be scratched, wear.
As shown in Figure 1 and Figure 5, first axle bearing member 12 and second bearing part 13 are assemblied on axis, are realized using positioning pin 40
It axially and also laterally positions, the faying face of first axle bearing member 12 and second bearing part 13 realizes radial positioning, to ensure bearing diameter
Cylindricity, the flatness of thrust face to face realize the high-precision assembly of bearing, then use screw by 12 He of first axle bearing member
Second bearing part 13 fastens, and then reuses the bearing that entire combination bearing is fixed on centrifugal compressor by screw by screw hole
On bearing.
As shown in Figure 1, first axle bearing member 12 is radially machined with radially oil supplying hole 30, oil supplying hole 30 is from bearing top circle
Processing is worn to sagittal plane, and the aperture of oil supplying hole 30 existsExtremelyBetween, to ensure to have sufficient lubricating oil from outer
Boundary's oil circuit enters the gap between bearing and axle journal by oil supplying hole 30.
As shown in fig. 6, the sagittal plane for the bearing arrangement being made of first axle bearing member 12 and second bearing part 13 is three oil film wedges
The radius of structure, arc surface 54 is set as R, and axle journal axle center is set as O, and the radius in third oil film wedge face 51 is set as R1, axle center is set as O1, the
The radius in four oil film wedge faces 52 is set as R2, axle center is set as O2, and 53 radius of the 5th oil film wedge face is set as R3, axle center is set as O3, axle journal axle center
It is set as L with the eccentricity of formation at a distance from oil film wedge axle center.By taking third oil film wedge face 51 as an example, L=OO1, R1/R 1 to 1.005 it
Between, L/R is between 0.001~0.01.Three oil film wedge structures can make shaft at high speed can stable operation.
In the present embodiment, starting point at least one in third oil film wedge face 51, the 4th oil film wedge face 52 and the 5th oil film wedge face 53
Place is provided with logical oil groove.The logical oil groove can be circular arc oil groove or V-type oil groove, restrain the starting point in face in each oil film wedge of sagittal plane
Place is machined with circular arc oil groove or V-type oil groove, and by the first oil film wedge face axially through to the second oil film wedge face, the depth of oil groove exists oil groove
To between 2mm, width, between 10mm, to ensure that radial direction has certain oil reserve, while ensureing to lubricate 0.5mm in 0.5mm
Oil can smoothly enter the first oil film wedge face, the second oil film wedge face after sagittal plane.
In the present embodiment, first axle bearing member 12 and second bearing part 13 can also be a component, that is, monolithic construction,.
In the present embodiment, the quantity of oil supplying hole 30 can be multiple.
In the present embodiment, the oil film wedge face on the hole wall of axis hole 11 may be that the oil film wedge face structure of other numbers is formed in
On the hole wall of axis hole 11.
Than that described above, it is also necessary to which explanation is " one embodiment " spoken of in the present specification, " another implementation
Example ", " embodiment " etc. refer to that specific features, structure or the feature of embodiment description is combined to be included in the application summary
Property description at least one embodiment in.It is not centainly to refer to the same reality that statement of the same race, which occur, in multiple places in the description
Apply example.Furthermore, it is understood that when describing a specific features, structure or feature in conjunction with any embodiment, what is advocated is knot
Other embodiment is closed to realize that this feature, structure or feature are also fallen within the scope of the present invention.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (28)
1. a kind of bearing arrangement, which is characterized in that including：
Bearing body (10)；
Forced section (20), the forced section (20) are set at least one end face of the bearing body (10), the stress
There is multiple face directly to be alternately arranged with multiple oil film wedge faces with multiple oil film wedge faces, multiple described face directly in portion (20).
2. bearing arrangement according to claim 1, which is characterized in that the bearing body (10) has axis hole (11), institute
It includes the first annular boss (22), first end and the bearing body of first annular boss (22) to state forced section (20)
(10) end face of first end is connected and is coaxially disposed with the axis hole (11), and multiple described face directly are faced directly including multiple first
(21), it multiple described first faces directly on the end face for the second end that (21) are formed in first annular boss (22).
3. bearing arrangement according to claim 2, which is characterized in that multiple oil film wedge faces include multiple first oil film wedges face
(23), multiple first oil film wedge faces (23) are formed on the end face of the second end of first annular boss (22), Duo Gesuo
It states the first oil film wedge face (23) and faces (21) directly with multiple described first and be alternately arranged.
4. bearing arrangement according to claim 3, which is characterized in that first oil film wedge face (23) in the bearing sheet
The height of the axial direction of body (10) is gradually increased along the direction of rotation for the shaft being set in the axis hole (11).
5. bearing arrangement according to claim 2, which is characterized in that the oil film wedge face is opened up with the junction faced directly
There is the first oil groove (221).
6. bearing arrangement according to claim 5, which is characterized in that the outer edge of first annular boss (22) opens up
There is the first unloading port (222) being connected with first oil groove (221).
7. bearing arrangement according to claim 5, which is characterized in that
The width of first oil groove (221) is w1, wherein 2mm≤w1≤10mm, and/or
The depth of first oil groove (221) is L1, wherein 0.5mm≤L1≤3mm.
8. bearing arrangement according to claim 6, which is characterized in that
The width of first unloading port (222) is w2, wherein 0.5mm≤w2≤5mm, and/or
The depth of first unloading port (222) is L1, wherein 0.5mm≤L2≤3mm.
9. bearing arrangement according to claim 5, which is characterized in that face shape directly with described in two adjacent oil film wedge faces
At thrust face unit, along the direction of rotation for the shaft being set in the axis hole (11), the oil film wedge face is located at the thrust face
The front end of unit, described to face the tail end positioned at the thrust face unit directly, adjacent two thrust face units pass through previous
The oil film wedge face phase faced directly with the front end of thrust face unit described in the latter of the tail end of a thrust face unit
Connection, the junction of adjacent two thrust face units offers first oil groove (221).
10. bearing arrangement according to claim 9, which is characterized in that the radial direction of first oil groove (221) it is several
What center line is located at the junction of two adjacent thrust face units, the tail of the front end in the oil film wedge face and the oil film wedge face
The difference in height at end is L3, wherein 0.06mm≤L3≤0.3mm.
11. bearing arrangement according to claim 10, which is characterized in that outside first annular boss (22) of part
Edge is provided with the first sealing oil edge (24), and described first that the height of first sealing oil edge (24) is adjacent thereto is faced directly (21)
It is highly identical.
12. bearing arrangement according to claim 9, which is characterized in that in the thrust face unit, the oil film wedge face
Area is t than the ratio of the sum of the upper oil film wedge face and the area faced directly, wherein 0.5≤t ＜ 1.
13. the bearing arrangement stated according to claim 2, which is characterized in that the forced section (20) further includes the second annular boss
(25), the first end of second annular boss (25) is connected with the end face of the second end of the bearing body (10), multiple
Described face directly is faced directly (26) including multiple second, and multiple described second, which face (26) directly, is formed in second annular boss (25)
On the end face of second end.
14. the bearing arrangement stated according to claim 13, which is characterized in that multiple oil film wedge faces include multiple second oil film wedges face
(251), multiple second oil film wedge faces (251) are formed on the end face of the second end of second annular boss (25), multiple
Second oil film wedge face (251) is faced (26) directly with multiple described second and is alternately arranged, adjacent described second face directly (26) with
The second oil groove (252) is provided between second oil film wedge face (251).
15. the bearing arrangement stated according to claim 14, which is characterized in that the outer edge of second annular boss (25) opens up
There is the second unloading port (253) being connected with second oil groove (252).
16. the bearing arrangement stated according to claim 15, which is characterized in that at least part of second annular boss (25)
Outer edge is provided with the second sealing oil edge (254).
17. the bearing arrangement stated according to claim 16, which is characterized in that the height and its phase of second sealing oil edge (254)
The height that adjacent described second faces (26) directly is identical.
18. the bearing arrangement stated according to claim 13, which is characterized in that the second end of second annular boss (25) it is interior
Annular oil storage tank (27) is offered on wall.
19. bearing arrangement according to claim 1, which is characterized in that faced directly in the bearing body (10) described in multiple
In the radial direction be located at approximately the same plane in.
20. bearing arrangement according to claim 2, which is characterized in that the bearing body (10) includes：
First axle bearing member (12), the first axle bearing member (12) have the first arc notch；
Second bearing part (13), the second bearing part (13) have the second arc notch, the second bearing part (13) and institute
It is detachably connected to state first axle bearing member (12), first arc notch is matched with second arc notch to be formed
State axis hole (11).
21. bearing arrangement according to claim 20, which is characterized in that first annular boss (22) includes：
First arc convex (223), first arc convex (223) are connected with the first axle bearing member (12) and are located at institute
It states and is arranged at the first arc notch；
Second arc convex (224), second arc convex (224) are connected with the second bearing part (13) and are located at institute
It states and is arranged at the second arc notch, first arc convex (223) matches with second arc convex (224) to surround
With the through-hole of the axis hole (11) coaxial arrangement.
22. bearing arrangement according to claim 20, which is characterized in that the first axle bearing member (12) and second axis
At least one of bearing member (13) is provided with oil supplying hole (30), radial direction side of the oil supplying hole (30) along the bearing body (10)
It is connected to extension and with the axis hole (11).
23. bearing arrangement according to claim 20, which is characterized in that the first axle bearing member (12) and second axis
Connecting hole is provided in bearing member (13), the first axle bearing member (12) and the second bearing part (13) pass through the connecting hole phase
Connection.
24. bearing arrangement according to claim 20, which is characterized in that the first axle bearing member (12) and second axis
One in bearing member (13) is provided with positioning pin (40), another in the first axle bearing member (12) and the second bearing part (13)
One is provided with and the positioning pin (40) matched location hole.
25. bearing arrangement according to claim 24, which is characterized in that the positioning pin (40) be it is multiple, it is multiple described
Positioning pin (40) is positioned apart from the first axle bearing member (12) with the second bearing part (13) with respect on ground surface.
26. the bearing arrangement according to claim 2 or 20, which is characterized in that the hole wall of the axis hole (11) includes third
Oil film wedge face (51), the 4th oil film wedge face (52), the 5th oil film wedge face (53) and arc surface (54), wherein
1≤R1/R≤1.005,0.001≤L/R≤0.01, L=OO1；
O is axle journal axle center；
O1 is the axle center in third oil film wedge face (51)；
R1 is the radius in third oil film wedge face (51)；
R is the radius of arc surface (54).
27. bearing arrangement according to claim 26, which is characterized in that third oil film wedge face (51), the 4th oil
At least one starting point is provided with logical oil groove in wedge surface (52) and the 5th oil film wedge face (53).
28. a kind of compressor, including bearing arrangement, which is characterized in that the bearing arrangement is any one in claim 1 to 27
Bearing arrangement described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452279.5A CN108412803A (en) | 2018-05-12 | 2018-05-12 | Bearing structure and compressor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452279.5A CN108412803A (en) | 2018-05-12 | 2018-05-12 | Bearing structure and compressor with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108412803A true CN108412803A (en) | 2018-08-17 |
Family
ID=63138981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810452279.5A Pending CN108412803A (en) | 2018-05-12 | 2018-05-12 | Bearing structure and compressor with same |
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| Country | Link |
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| CN (1) | CN108412803A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594287A (en) * | 2019-09-17 | 2019-12-20 | 福建福清核电有限公司 | A main pump integrated three-fluid groove radial water guide bearing bush |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348065A (en) * | 1979-07-13 | 1982-09-07 | Hitachi, Ltd. | Thrust bearing |
| JPH06200940A (en) * | 1992-12-28 | 1994-07-19 | Shin Meiwa Ind Co Ltd | Spindle device using magnetic fluid bearing |
| CN1188192A (en) * | 1996-10-11 | 1998-07-22 | 亚瑞亚·勃朗勃威力有限公司 | Axial sliding bearing |
| JPH1113749A (en) * | 1997-06-20 | 1999-01-22 | Hamai Sangyo Kk | Dynamic pressure bearing |
| JP2003222123A (en) * | 2002-01-25 | 2003-08-08 | Mitsubishi Heavy Ind Ltd | Taper land thrust bearing and rotary machine equipped with this bearing |
| JP2008144864A (en) * | 2006-12-11 | 2008-06-26 | Nok Corp | Thrust bearing |
| CN101705963A (en) * | 2009-11-27 | 2010-05-12 | 中国北车集团大连机车研究所有限公司 | Dongfeng series internal combustion locomotive supercharger thrust bearing |
| CN102192238A (en) * | 2011-05-20 | 2011-09-21 | 重庆德蚨乐机械制造有限公司 | Method for determining shape of semi-floating supporting bearing inner bore oil wedge of supercharger |
| JP2013002466A (en) * | 2011-06-13 | 2013-01-07 | Ihi Corp | Thrust bearing structure and supercharger |
| CN103842667A (en) * | 2011-12-27 | 2014-06-04 | 三菱重工业株式会社 | Thrust bearing device for supercharger |
| CN204164175U (en) * | 2014-09-30 | 2015-02-18 | 杭州康联科技有限公司 | A kind of bearing shell of centrifugal air compressor main shaft bearing |
| CN206419339U (en) * | 2016-11-11 | 2017-08-18 | 浙江正盛轴瓦有限责任公司 | The thrust surface lubrication system of steam turbine bearing |
| JP2017180586A (en) * | 2016-03-29 | 2017-10-05 | 大豊工業株式会社 | Washer |
| CN208236734U (en) * | 2018-05-12 | 2018-12-14 | 珠海格力电器股份有限公司 | Bearing structure and compressor with same |
-
2018
- 2018-05-12 CN CN201810452279.5A patent/CN108412803A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348065A (en) * | 1979-07-13 | 1982-09-07 | Hitachi, Ltd. | Thrust bearing |
| JPH06200940A (en) * | 1992-12-28 | 1994-07-19 | Shin Meiwa Ind Co Ltd | Spindle device using magnetic fluid bearing |
| CN1188192A (en) * | 1996-10-11 | 1998-07-22 | 亚瑞亚·勃朗勃威力有限公司 | Axial sliding bearing |
| JPH1113749A (en) * | 1997-06-20 | 1999-01-22 | Hamai Sangyo Kk | Dynamic pressure bearing |
| JP2003222123A (en) * | 2002-01-25 | 2003-08-08 | Mitsubishi Heavy Ind Ltd | Taper land thrust bearing and rotary machine equipped with this bearing |
| JP2008144864A (en) * | 2006-12-11 | 2008-06-26 | Nok Corp | Thrust bearing |
| CN101705963A (en) * | 2009-11-27 | 2010-05-12 | 中国北车集团大连机车研究所有限公司 | Dongfeng series internal combustion locomotive supercharger thrust bearing |
| CN102192238A (en) * | 2011-05-20 | 2011-09-21 | 重庆德蚨乐机械制造有限公司 | Method for determining shape of semi-floating supporting bearing inner bore oil wedge of supercharger |
| JP2013002466A (en) * | 2011-06-13 | 2013-01-07 | Ihi Corp | Thrust bearing structure and supercharger |
| CN103842667A (en) * | 2011-12-27 | 2014-06-04 | 三菱重工业株式会社 | Thrust bearing device for supercharger |
| CN204164175U (en) * | 2014-09-30 | 2015-02-18 | 杭州康联科技有限公司 | A kind of bearing shell of centrifugal air compressor main shaft bearing |
| JP2017180586A (en) * | 2016-03-29 | 2017-10-05 | 大豊工業株式会社 | Washer |
| CN206419339U (en) * | 2016-11-11 | 2017-08-18 | 浙江正盛轴瓦有限责任公司 | The thrust surface lubrication system of steam turbine bearing |
| CN208236734U (en) * | 2018-05-12 | 2018-12-14 | 珠海格力电器股份有限公司 | Bearing structure and compressor with same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594287A (en) * | 2019-09-17 | 2019-12-20 | 福建福清核电有限公司 | A main pump integrated three-fluid groove radial water guide bearing bush |
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Application publication date: 20180817 |