CN102817906A - Elliptical bearing applied to transmission device of speed-regulating hydraulic coupler - Google Patents
Elliptical bearing applied to transmission device of speed-regulating hydraulic coupler Download PDFInfo
- Publication number
- CN102817906A CN102817906A CN2012103196344A CN201210319634A CN102817906A CN 102817906 A CN102817906 A CN 102817906A CN 2012103196344 A CN2012103196344 A CN 2012103196344A CN 201210319634 A CN201210319634 A CN 201210319634A CN 102817906 A CN102817906 A CN 102817906A
- Authority
- CN
- China
- Prior art keywords
- bearing
- oil
- transmission device
- equal
- radius
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Sliding-Contact Bearings (AREA)
Abstract
The invention provides an elliptical bearing applied to a transmission device of a speed-regulating hydraulic coupler. The elliptical bearing is characterized by being a double-oil-wedge liquid dynamic pressure radial bearing and comprising an upper tile and a lower tile, wherein oil grooves are formed on the two sides of the subdivision surfaces of the upper and lower tiles; a tin-based Babbitt alloy layer is formed on the inner surface of the elliptical bearing; lubricating oil is filled on the working surfaces of the elliptical bearing and a shaft neck; the ovality Psi/Psi* of the bearing is equal to 2.5, the relative gap Psi* is equal to 0.0015, and the relevant oil wedge gap Psi is equal to 0.00375; an eccentric distance s of the oil wedge is equal to c-c*, the minimum radius gap c* is equal to Psi* multiplied by r, the radius gap c is equal to Psi multiplied by r, and r is the radius of the shaft neck; and the curvature radius R of the oil-wedge surface is equal to r plus r plus c* and is equal to r plus c. According to the invention, a stable zone of the bearing is enlarged, so that the bearing can bear considerable overload in limited time so as to ensure that an oil inlet temperature is controlled to be in a regulated range, and further, the transmission device runs stably at high speed.
Description
Technical field
The present invention relates to a kind of elliptic bearing that is applied in the high-power hydraulic coupler transmission device of high rotating speed, belong to the hydraulic coupler transmission device technical field.
Background technique
Shown in Figure 1 is the sliding bearing of existing application in high rotating speed hydraulic coupler transmission device; Be simgle oil wedge Hydrodynamic circular radial bearing; With the sliding bearing of axle journal diameter of phi 130 (radially watt) is example; According to the diameter of axle and bearing temperature rise; Confirm bearing aperture size deviation Φ 130
(wherein
is according to bearing temperature rise to diameter of axle size deviation
; Decrease 130 * 1.1 ‰=-0.143 of the diameter of axle, the manufacturing limit deviation-0.03 of consideration axle).The maximum diameter gap of sliding bearing :+0.04-(0.173)=0.213, minimum diameter gap: 0-(0.143)=0.143.Fig. 2 and Fig. 3 are respectively the partial enlarged drawing at A among Fig. 1, B place, maximum radius gap c=0.213 ÷ 2=0.1065, bearing maximum radius R=(130+0.04) ÷ 2=65.02, axle journal least radius r=(130-0.173) ÷ 2=64.9135.The gap of this type of sliding bearing belongs to simgle oil wedge Hydrodynamic circular radial bearing, and the stable region is little, the poor stability when running up.
Summary of the invention
The technical problem that the present invention will solve provides that a kind of stable region is big, good stability is applied to the elliptic bearing in the high-power hydraulic coupler transmission device of high rotating speed when running up.
In order to solve the problems of the technologies described above; Technological scheme of the present invention provides a kind of elliptic bearing that is applied in the hydraulic coupler transmission device; It is characterized in that: be two oil film wedge Hydrodynamic radial bearings, comprise watt and following watt that upper and lower watt of split surface both sides are equipped with oil groove; The elliptic bearing internal surface is provided with the tin-base babbit layer, and elliptic bearing and axle journal working surface are provided with lubricant oil; The ovality ψ of bearing/ψ
*=2.5, relative gap ψ wherein
*=0.0015, relative oil film wedge gap ψ=0.00375; Oil film wedge throw of eccentric s=c-c
*, least radius gap c wherein
*=ψ
** r, radius clearance c=ψ * r, r are the axle journal radius; Oil film wedge curvature of face radius R=r+s+c
*=r+c.
Preferably, said oil groove and upper and lower watt of split surface radially angle be 30 °.
Preferably, said lubricant oil is L-TSA32 steam turbine oil or MOBIL mobil oil.
Preferably, said Shang watt material is No. 20 low carbon element structural steel.
Preferably, said following watt of material is No. 20 low carbon element structural steel.
A kind of rational elliptic bearing geometric parameter of elliptic bearing utilization that is applied in the hydraulic coupler transmission device provided by the invention; Make between elliptic bearing and axle journal working surface and separated fully by oil film; Increase the supporting region end vent flow and the oil groove side vent flow of bearing; The oil temperature be can reduce, antiwhip and bearing capacity guaranteed.Watt body selects for use No. 20 low carbon element structural steel of high-qualitys to forge, and forgeability is strong.Internal surface spun casting tin-base babbit at bearing shell has high compression strength, certain impact toughness and hardness, and plasticity is good, and the thermal conductivity corrosion resistance is good.The material of selecting for use confirms that bearing is applicable to high-revolving ability: the ability lubricant film, and the enough anti-deformation under load of intensity ability, enough hardness can be resisted the wearing and tearing of alloy.
Device provided by the invention has overcome the deficiency of existing technology; Utilize rational elliptic bearing geometric parameter; Select appropriate material and lubricant oil, enlarged the stable region of bearing, can in finite time, bear sizable overload; Guarantee that inlet oil temperature is controlled in the scope of regulation, it is stable that transmission device is run up.
Description of drawings
Fig. 1 is the former sliding bearing schematic representation that is applied in the hydraulic coupler transmission device;
Fig. 2 is an A place partial enlarged drawing among Fig. 1;
Fig. 3 is a B place partial enlarged drawing among Fig. 1;
Fig. 4 is a kind of elliptic bearing schematic representation that is applied in the hydraulic coupler transmission device provided by the invention;
Fig. 5 is an I place partial enlarged drawing among Fig. 4;
Fig. 6 is an II place partial enlarged drawing among Fig. 4;
Fig. 7 is an III place partial enlarged drawing among Fig. 4;
Fig. 8 is an elliptic bearing internal surface babbitting layer schematic representation in the present embodiment;
Fig. 9 is an A-A sectional drawing among Fig. 8
Figure 10 is an elliptic bearing assembling schematic representation in the present embodiment.
Description of reference numerals
Last watt of 1-; Following watt of 2-; The 3-oil groove; 4-casts babbit layer; No. 1,101-input shaft radially watt; No. 2,102-input shaft radially watt; No. 3,103-input shaft radially watt; No. 4,104-pump impeller radially watt; No. 5,105-pump impeller radially watt; No. 6,106-turbine radially watt; No. 7,107-turbine radially watt.
Embodiment
For making the present invention more obviously understandable, now with a preferred embodiment, and conjunction with figs. elaborates as follows.
Fig. 4 is a kind of elliptic bearing schematic representation that is applied in the hydraulic coupler transmission device provided by the invention; With the elliptic bearing of axle journal diameter of phi 130 No. 5, pump impeller (radially watt 105) is example; Elliptic bearing is two oil film wedge Hydrodynamic radial bearings; What adopt is the subdivision structure, is respectively watt 1 and following watt 2.In conjunction with Fig. 5～Fig. 7, the ovality ψ of bearing/ψ
*=2.5, wherein relative bottom clearance ψ
*=0.0015, relative sideshake ψ=ψ
** 2.5=0.00375; Oil film wedge throw of eccentric s=c-c
*=0.243-0.0975=0.1455, wherein least radius gap (bottom clearance) c
*=ψ
** r=0.0015 * 65=0.0975, radius clearance (sideshake) c=ψ * r=0.00375 * 65=0.243, r is the axle journal radius; Oil film wedge curvature of face radius R=r+s+c
*=r+c=65+0.243=65.243.
In conjunction with Fig. 8, the processing technology of elliptic bearing endoporus is: after the whole processing watt, by size requirement babbitting layer 4; Behind half finish turning, upper and lower watt of line cutting; At upper and lower watt Hough face shimming, spacer thickness is oil film wedge throw of eccentric s * 2=0.1455 * 2=0.291, is fixedly clamped with pin; Proofread and correct the Hough line, the endoporus R of finish turning bearing
=65.243; After completion, remove pad, the radial bearing that this moment, clamping became is an elliptic bearing.As shown in Figure 4: longitudinal axis L is 130.486, and minor axis 1 is 130.486-0.291=130.195.In conjunction with Fig. 9, there are enough fuel deliveries to flow into radially 30 ° oil groove 3 of elliptic bearing upper and lower watt of split surface both sides.
Described elliptic bearing structure makes between elliptic bearing and axle journal working surface to be separated fully by oil film, increases the supporting region end vent flow and the oil groove side vent flow of bearing, can reduce the oil temperature, guarantees antiwhip and bearing capacity.
The material of elliptic bearing: a watt body selects for use No. 20 low carbon element structural steel of high-quality to forge, and forgeability is strong.Internal surface spun casting tin-base babbit at bearing shell has high compression strength, certain impact toughness and hardness, and plasticity is good, and the thermal conductivity corrosion resistance is good.Said material confirms that bearing is applicable to high-revolving ability: the ability lubricant film, and the enough anti-deformation under load of intensity ability, enough hardness can be resisted the wearing and tearing of alloy.
Shown in Figure 10 is a kind of elliptic bearing erection drawing that is applied in the high rotating speed hydraulic coupler transmission device of the present invention.With the elliptic bearing of elliptic bearing shown in Figure 2 No. 5, pump impeller (radially watt) and other size comprise No. 1, input shaft radially watts 101, No. 2, input shaft radially watts 102, No. 3, input shaft radially watts 103, No. 4, pump impeller radially watts 104, No. 6, turbine radially watts 106, No. 7, turbine radially watts 107 etc. is installed in separately on the parts; When transmission device runs up; Lubricating oil inlet pressure >=0.12Mpa, the lubricant oil of employing: L-TSA32 steam turbine oil or MOBIL mobil oil, transmission device is when tm=55 ℃ of average oil temperature; The kinetic viscosity η of lubricant oil=0.05Pa.s; Rational elliptic bearing structure, the stable region of expansion bearing makes the gap between bearing and the axle journal working surface; Separated fully by oil film; Can in finite time, bear sizable overload, guarantee that inlet oil temperature is controlled in the scope of regulation, it is stable that transmission device is run up.
Claims (5)
1. elliptic bearing that is applied in the hydraulic coupler transmission device; It is characterized in that: be two oil film wedge Hydrodynamic radial bearings; Comprise watt (1) and following watt (2); Upper and lower watt of split surface both sides are equipped with oil groove (3), and the elliptic bearing internal surface is provided with tin-base babbit layer (4), and elliptic bearing and axle journal working surface are provided with lubricant oil; The ovality ψ of bearing/ψ
*=2.5, relative gap ψ wherein
*=0.0015, relative oil film wedge gap ψ=0.00375; Oil film wedge throw of eccentric s=c-c
*, least radius gap c wherein
*=ψ
** r, radius clearance c=ψ * r, r are the axle journal radius; Oil film wedge curvature of face radius R=r+s+c
*=r+c.
2. a kind of elliptic bearing that is applied in the hydraulic coupler transmission device as claimed in claim 1 is characterized in that: said oil groove (3) and upper and lower watt of split surface radially angle (α) are 30 °.
3. a kind of elliptic bearing that is applied in the hydraulic coupler transmission device as claimed in claim 1 is characterized in that: said lubricant oil is L-TSA32 steam turbine oil or MOBIL mobil oil.
4. a kind of elliptic bearing that is applied in the hydraulic coupler transmission device as claimed in claim 1 is characterized in that: said Shang watt (1) material is No. 20 low carbon element structural steel.
5. a kind of elliptic bearing that is applied in the hydraulic coupler transmission device as claimed in claim 1 is characterized in that: said following watt of (2) material is No. 20 low carbon element structural steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103196344A CN102817906A (en) | 2012-08-31 | 2012-08-31 | Elliptical bearing applied to transmission device of speed-regulating hydraulic coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103196344A CN102817906A (en) | 2012-08-31 | 2012-08-31 | Elliptical bearing applied to transmission device of speed-regulating hydraulic coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102817906A true CN102817906A (en) | 2012-12-12 |
Family
ID=47302245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103196344A Pending CN102817906A (en) | 2012-08-31 | 2012-08-31 | Elliptical bearing applied to transmission device of speed-regulating hydraulic coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102817906A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140594A (en) * | 2020-01-14 | 2020-05-12 | 上海电气燃气轮机有限公司 | Oval bearings for gas turbines |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6402385B1 (en) * | 1999-08-06 | 2002-06-11 | Sankyo Seiki Mfg. Co., Ltd. | Dynamic pressure bearing apparatus |
| CN202040204U (en) * | 2011-05-20 | 2011-11-16 | 重庆德蚨乐机械制造有限公司 | Bimetallic semi-floating supporting sliding bearing for high pressure ratio marine supercharger |
| CN202732699U (en) * | 2012-08-31 | 2013-02-13 | 上海交大南洋机电科技有限公司 | Elliptical bearing applied to variable speed hydraulic coupler transmission device |
-
2012
- 2012-08-31 CN CN2012103196344A patent/CN102817906A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6402385B1 (en) * | 1999-08-06 | 2002-06-11 | Sankyo Seiki Mfg. Co., Ltd. | Dynamic pressure bearing apparatus |
| CN202040204U (en) * | 2011-05-20 | 2011-11-16 | 重庆德蚨乐机械制造有限公司 | Bimetallic semi-floating supporting sliding bearing for high pressure ratio marine supercharger |
| CN202732699U (en) * | 2012-08-31 | 2013-02-13 | 上海交大南洋机电科技有限公司 | Elliptical bearing applied to variable speed hydraulic coupler transmission device |
Non-Patent Citations (1)
| Title |
|---|
| 哈尔滨大机电研究所 杜可荣，张宏: "300MW汽轮发电机椭圆轴承结构参数的选择与试验", 《华中电力》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140594A (en) * | 2020-01-14 | 2020-05-12 | 上海电气燃气轮机有限公司 | Oval bearings for gas turbines |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8870460B2 (en) | Plain bearing half liner | |
| EP2765318B1 (en) | Slide bearing | |
| CN101121225A (en) | Processing method of oil distribution ring of split shaft system | |
| CN201053449Y (en) | Water-lubricated bearing | |
| CN202732699U (en) | Elliptical bearing applied to variable speed hydraulic coupler transmission device | |
| CN113418703B (en) | Water lubrication bearing capable of self-compensating static pressure, static pressure self-compensating system and engineering analysis method | |
| CN116044904A (en) | Drum-shaped double-conical-surface dynamic-static pressure radial sliding bearing | |
| CN102141151A (en) | Novel static-ring structure of mechanical sealing device | |
| CN111120504A (en) | A high-load thrust sliding bearing with self-feedback regulating thermal deformation | |
| CN102817906A (en) | Elliptical bearing applied to transmission device of speed-regulating hydraulic coupler | |
| EP2379904B1 (en) | Hydrodynamic bearing for an internal combustion engine | |
| CN101285500A (en) | Water-lubricated thrust bearings with ring grooves | |
| CN205479172U (en) | A planetary gear derailleur for wind power generation | |
| CN201301890Y (en) | Thrust bearing | |
| CN106763198A (en) | A kind of tilting thrust bearing of complicated slip surface | |
| CN201705934U (en) | Novel static ring structure of mechanical seal device | |
| CN104540608B (en) | Roll arrangement | |
| CN113983069B (en) | High-speed heavy-load low-power consumption dislocation molded line sliding support bearing | |
| CN207961267U (en) | A kind of high-wearing feature self-aligning roller bearing | |
| CN106351945B (en) | It is segmented rubber tilting thrust bearing | |
| CN210686639U (en) | Thrust plain bearing | |
| CN2594529Y (en) | Horizontal radial water-lubricated metal plastic bearing | |
| CN202628803U (en) | Rolling bearing capable of saving electricity for ball mill | |
| CN101021232A (en) | Lubricating oil pressure suspension bearing bush | |
| CN205036620U (en) | Lubricated ceramic bearing structure of corrosion -resistant pump water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121212 |