CN109027011A - A kind of differential assembly cylindrical roller thrust spherical bearing and its processing method - Google Patents
A kind of differential assembly cylindrical roller thrust spherical bearing and its processing method Download PDFInfo
- Publication number
- CN109027011A CN109027011A CN201811165557.5A CN201811165557A CN109027011A CN 109027011 A CN109027011 A CN 109027011A CN 201811165557 A CN201811165557 A CN 201811165557A CN 109027011 A CN109027011 A CN 109027011A
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- China
- Prior art keywords
- seat ring
- differential assembly
- retainer
- cylindrical roller
- blowout patche
- 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
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- 238000003672 processing method Methods 0.000 title abstract description 7
- 238000000034 method Methods 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a kind of differential assembly cylindrical roller thrust spherical bearings and its processing method；The cylindrical roller thrust spherical bearing includes seat ring, the internal diameter and outer diameter of the seat ring are two concentric circles, the outer diameter is matched with planetary gear concave mouth, the side of the seat ring is connected with retainer, the internal diameter of the retainer is identical as seat ring, the seat ring, retainer internal diameter be that small―gap suture cooperates with cross axle, the side of the retainer is connected with blowout patche, described blowout patche one end is plane, the other end is convex spherical, inner hole be it is discontinuous it is round, with a thickness of the structure of non-constant value.The present invention using cylindrical roller thrust spherical bearing instead of former spherical pad after, so that the sliding friction between two parts of relative rotation or rotation trend intrinsic between former each contact surface in differential assembly is changed to the rolling friction between the blowout patche, seat ring and roller of bearing, reduces fretting wear.
Description
Technical field
The present invention relates to the bearing mnanufacture technical field of differential assembly more particularly to a kind of differential assembly thrust circles
Column roller spherical bearing and its processing method.
Background technique
Open differential be usually by two or four planetary gear, planetary wheel carrier (integral differential mechanism and a word axis or
Left and right differential carrier and cross axle), the parts composition such as two axle shaft gears and spherical pad, semiaxis flat shim.Engine moves
Power enters differential mechanism through transmission shaft, directly drives planetary wheel carrier, then drives the axle shaft gear being meshed therewith by planetary gear, and two
A axle shaft gear drives left and right two semiaxis to match therewith again, respectively drives left and right wheel.The design requirement of differential mechanism is full
Foot: (left half axle revolving speed)+(right axle shaft revolving speed)=2 (planetary wheel carrier revolving speed).When automobile straight trip, left and right wheel and planetary gear
The revolving speed of frame three is equal, is in equilibrium state, and in automobile turning, three's equilibrium state is destroyed, and inboard wheel is caused to turn
Speed reduces, and outboard wheels revolving speed increases.When cornering, since outboard wheels have sliding the phenomenon that dragging, inboard wheel has what is trackslipped to show
As two driving wheels will generate the opposite additional force of both direction at this time necessarily leads to both sides due to " minimum stream power "
The revolving speed of wheel is different, to destroy the equilibrium relation of three, and by forcing planet tooth in semiaxis reflection to axle shaft gear
Wheel generates rotation, makes inside semiaxis spin down, outside semiaxis faster rotational speed, to realize the difference of both sides vehicle wheel rotational speed.
Differential assembly is in working condition, either automobile straight trip or turning, two axle shaft gears in differential mechanism,
All always in rotation, and between axle shaft gear gasket and shell, axle shaft gear, always from time to time in relatively rotating, at this moment
Frictional force generation is just had between gasket and shell, gasket and axle shaft gear, over time, will result in the mill of gasket and shell
Damage；When automobile turning, the planetary gear in differential mechanism can also generate rotation, at this time planet gear pad other than revolution
Abrasion can be generated because of sliding friction；When automobile is when the poor mining area of road conditions or moment accelerate, slow down, differential gear is in external force
Under effect, moment, when gear rotates, frictional force be increased dramatically by axial force at the increase of geometric multiple, shell and gasket abrasion
It is even more serious, it there is also sometimes and burn to death, be bonded between gasket and gear faying face, make to continue relative rotation between gasket and shell,
More aggravate the abrasion between gasket and shell.
Therefore, it now urgently designs a kind of for substituting the spherical pad in former differential assembly and reducing and shell, semiaxis
The device of frictional force between gear is reduced to the degree of wear between each part minimum, is just particularly important.
Summary of the invention
The purpose of the present invention is to provide a kind of differential assembly cylindrical roller thrust spherical bearing and its processing method,
Change the sliding friction between two parts of relative rotation or rotation trend intrinsic between former each contact surface in differential assembly
For the rolling friction between the blowout patche, seat ring and roller of bearing, fretting wear is reduced, solves differential assembly in working condition
When, either automobile straight trip or turn, two axle shaft gears in differential mechanism, all always in rotation, and axle shaft gear gasket
Between shell, axle shaft gear, always from time to time in relatively rotating, at this moment gasket and shell, gasket and axle shaft gear it
Between just have frictional force and lead to the problem of fretting wear.
A kind of differential assembly cylindrical roller thrust spherical bearing according to an embodiment of the present invention, including seat ring, it is described
The internal diameter and outer diameter of seat ring are two concentric circles, and the outer diameter is matched with planetary gear concave mouth, the side of the seat ring
Be connected with retainer, the internal diameter of the retainer is identical as seat ring, the seat ring, retainer internal diameter with cross axle be small
Gap cooperation, the side of the retainer are connected with blowout patche, and described blowout patche one end is plane, the other end is convex spherical, inner hole is non-
Continuous circular, the structure with a thickness of non-constant value, the concave ball surfaces radius phase of the spherical radius and differential assembly upper housing
Together.
Further, the outer diameter of the seat ring and planetary gear concave mouth are that transition or slight interference cooperate.
Further, flat position is milled on the cross axle in the inner hole and differential assembly of the blowout patche to match.
Further, the blowout patche and seat ring material are GCr15, heat treatment hardness HRC61-65.
Further, multiple evenly arranged rectangle pocket holes annular in shape are provided between the internal diameter and outer diameter of the retainer.
Further, the non-cooperation free size of the outer diameter of the retainer.
Further, roller is cased with inside the pocket hole of the retainer, the diameter and length of the roller are with differential mechanism
Shell dimension on assembly and change.
A kind of processing method of differential assembly cylindrical roller thrust spherical bearing, specifically includes the following steps:
S1: first process to blowout patche: first Vehicle Processing is concentric circles at a thin annular sleeve, inside and outside diameter before heat, and outer diameter is direct
For vehicle to finished size, inner hole is processed into place's size more flat than finally discontinuous round hole, the round hole of smaller 0.5mm.
S2: final discontinuous round hole is once drawn in the way of wire pulling method using combination broach processing blowout patche
It is whittled into shape, then is shaped SR spherical surface with discontinuous round hole locating tensioning using tooling, after heat treatment finally, in work
Under dress auxiliary, the plane of plain grinding blowout patche one end；
S3: using tooling, is positioned with flat surface grinding, discontinuous round hole, the discontinuous round hole of tensioner refines SR spherical surface
Forming；
S4: successively assembling seat ring, retainer, blowout patche, that is, completes assembly.
Compared with the prior art, the invention has the beneficial effects that:
1, after using cylindrical roller thrust spherical bearing instead of former spherical pad, make former each contact surface in differential assembly
Between intrinsic relative rotation or rotate the sliding friction between two parts of trend be changed to bearing blowout patche, seat ring and roller it
Between rolling friction, reduce fretting wear；
2, planetary gear and bearing race in improved differential assembly is made to keep opposing stationary, the blowout patche of bearing
It keeps opposing stationary with shell, prevents fretting wear, improve the service life of each part, and then it is total to reach the entire differential mechanism of extension
At service life.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of differential assembly cylindrical roller thrust spherical bearing proposed by the present invention；
Fig. 2 is the front knot of retainer in a kind of differential assembly cylindrical roller thrust spherical bearing proposed by the present invention
Structure schematic diagram；
Fig. 3 is the Facad structure of blowout patche in a kind of differential assembly cylindrical roller thrust spherical bearing proposed by the present invention
Schematic diagram.
In figure: 1- blowout patche, 2- retainer, 3- seat ring, 4- pocket hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig.1-3, a kind of differential assembly cylindrical roller thrust spherical bearing, including seat ring 3, seat ring are an annulars
The internal diameter of thin set gasket and seat ring 3 and outer diameter are two concentric circles, and outer diameter is matched with planetary gear concave mouth, seat ring 3
Side is connected with retainer 2, and the internal diameter of retainer 2 is identical as seat ring 3, seat ring 3, retainer 2 internal diameter with cross axle be it is small
Clearance fit, the side of retainer 2 are connected with blowout patche 1, and 1 one end of blowout patche is plane, the other end is convex spherical, inner hole is discontinuous
It is round, with a thickness of the structure of non-constant value, Spherical Surface S R is identical as the concave ball surfaces radius of differential assembly upper housing, using thrust
After cylindrical roller spherical bearing is instead of former spherical pad, make relative rotation intrinsic between former each contact surface in differential assembly
Or the sliding friction between two parts of rotation trend is changed to the rolling friction between the blowout patche 1, seat ring 3 and roller of bearing, drops
Low friction abrasion.
The outer diameter and planetary gear concave mouth of seat ring 3 are that transition or slight interference cooperate；The inner hole of blowout patche 1 and differential mechanism are total
Match at flat position is milled on interior cross axle, (φ -3) mm can be set to by milling flat thickness, and φ is cross axle diameter of axle size, this is flat i.e.
Cooperate with blowout patche non-circular hole (flat place's size (φ -2.8) mm) small―gap suture of the cylindrical roller thrust spherical bearing of special construction；
Blowout patche 1 and 3 material of seat ring are GCr15, heat treatment hardness HRC61-65；Evenly arranged square in a ring is provided on retainer
Shape pocket hole 4；The non-cooperation free size of the outer diameter of retainer 2；Be cased with roller inside the pocket hole of retainer 2, the roller it is straight
Diameter and length change with the shell dimension on differential assembly.Planetary gear after improvement in improved differential assembly with
Bearing race 3 keeps opposing stationary, and blowout patche 1 and the shell of bearing keep opposing stationary, prevents fretting wear, improves each part
Service life, and then reach the service life for extending entire differential assembly.
A kind of its processing method of differential assembly cylindrical roller thrust spherical bearing, specifically includes the following steps:
S1: first process to blowout patche 1: first Vehicle Processing is at a thin annular sleeve before heat, and inside and outside diameter is concentric circles, outside straight
It picks up to finished size, inner hole is processed into place's size more flat than finally discontinuous round hole, the round hole of smaller 0.5mm.
S2: processing blowout patche 1 using combination broach, in the way of wire pulling method, final discontinuous round hole is primary
Broaching forming, then shaped SR spherical surface with discontinuous round hole locating tensioning using tooling, after heat treatment finally,
Under tooling auxiliary, the plane of plain grinding blowout patche one end；
S3: using tooling, is positioned with flat surface grinding, discontinuous round hole, the discontinuous round hole of tensioner refines SR spherical surface
Forming；
S4: successively assembling seat ring 3, retainer 2, blowout patche 1, that is, completes assembly.
Place is not described in detail by the present invention, is the well-known technique of those skilled in the art.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of differential assembly cylindrical roller thrust spherical bearing, it is characterised in that: including seat ring (3), the seat ring (3)
Internal diameter and outer diameter be two concentric circles, the outer diameter matches with planetary gear concave mouth, the side company of the seat ring (3)
It is connected to retainer (2), the internal diameter of the retainer (2) is identical as seat ring (3), and the seat ring (3), the internal diameter of retainer (2) are equal
Be that small―gap suture cooperates with cross axle, the side of the retainer (2) is connected with blowout patche (1), described blowout patche (1) one end be plane,
The other end is convex spherical, inner hole is discontinuous circle, with a thickness of the structure of non-constant value, the spherical surface and differential assembly upper casing
The concave ball surfaces radius of body is identical.
2. a kind of differential assembly cylindrical roller thrust spherical bearing according to claim 1, it is characterised in that: described
The outer diameter and planetary gear concave mouth of seat ring (3) are that transition or slight interference cooperate.
3. a kind of differential assembly cylindrical roller thrust spherical bearing according to claim 1, it is characterised in that: described
Flat position is milled on cross axle in the inner hole and differential assembly of blowout patche (1) to match.
4. a kind of differential assembly cylindrical roller thrust spherical bearing according to claim 1, it is characterised in that: described
Blowout patche (1) and seat ring (3) material are GCr15, heat treatment hardness HRC61-65.
5. a kind of differential assembly cylindrical roller thrust spherical bearing according to claim 1, it is characterised in that: described
Multiple evenly arranged rectangle pocket holes (4) annular in shape are provided between the internal diameter and outer diameter of retainer (2).
6. a kind of differential assembly cylindrical roller thrust spherical bearing according to claim 5, it is characterised in that: described
The non-cooperation free size of the outer diameter of retainer (2).
7. a kind of differential assembly cylindrical roller thrust spherical bearing according to claim 6, it is characterised in that: described
Be cased with roller inside the pocket hole of retainer (2), the diameter and length of the roller with the shell dimension on differential assembly and
Change.
8. a kind of its processing of differential assembly according to claim 1-7 cylindrical roller thrust spherical bearing
Method, which is characterized in that specifically includes the following steps:
S1: first process to blowout patche (1): first Vehicle Processing is concentric circles at a thin annular sleeve, inside and outside diameter before heat, and outer diameter is direct
For vehicle to finished size, inner hole is processed into place's size more flat than finally discontinuous round hole, the round hole of smaller 0.5mm.
S2: final discontinuous round hole is once drawn in the way of wire pulling method using combination broach processing blowout patche (1)
It is whittled into shape, then is shaped SR spherical surface with discontinuous round hole locating tensioning using tooling, after heat treatment finally, in work
Under dress auxiliary, the plane of plain grinding blowout patche one end；
S3: using tooling, is positioned with flat surface grinding, discontinuous round hole, SR spherical surface is finish-ground to by the discontinuous round hole of tensioner
Shape；
S4: successively assembling seat ring (3), retainer (2), blowout patche (1) again, that is, completes assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811165557.5A CN109027011A (en) | 2018-09-20 | 2018-09-20 | A kind of differential assembly cylindrical roller thrust spherical bearing and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811165557.5A CN109027011A (en) | 2018-09-20 | 2018-09-20 | A kind of differential assembly cylindrical roller thrust spherical bearing and its processing method |
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| Publication Number | Publication Date |
|---|---|
| CN109027011A true CN109027011A (en) | 2018-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811165557.5A Pending CN109027011A (en) | 2018-09-20 | 2018-09-20 | A kind of differential assembly cylindrical roller thrust spherical bearing and its processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114054815A (en) * | 2022-01-18 | 2022-02-18 | 成都飞机工业（集团）有限责任公司 | High-precision special-shaped hole machining method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040134307A1 (en) * | 2002-12-02 | 2004-07-15 | Pascoe David Mark | Differential housing with integrated ring gear |
| CN102410352A (en) * | 2011-11-25 | 2012-04-11 | 洛阳华冠齿轮股份有限公司 | Improved transmission structure of automobile inter-axial differential system |
| CN206175604U (en) * | 2016-11-11 | 2017-05-17 | 上汽依维柯红岩商用车有限公司 | Differential mechanism |
| CN106870684A (en) * | 2017-03-17 | 2017-06-20 | 山东湖西王集团有限公司 | automobile differential, bearing combined structure |
| CN206802237U (en) * | 2017-04-28 | 2017-12-26 | 东风商用车有限公司 | Differential mechanism between shafts |
| CN207621290U (en) * | 2017-11-15 | 2018-07-17 | 中国第一汽车股份有限公司 | A kind of high efficiency high life automobile drive bridge speed differientiator assembly |
| CN108413004A (en) * | 2018-05-07 | 2018-08-17 | 江苏太平洋齿轮传动有限公司 | Using the high-precision differential mechanism of spherical pad |
| CN108436393A (en) * | 2018-03-20 | 2018-08-24 | 中国航发哈尔滨轴承有限公司 | A kind of cylinder roller bearing solid cage processing method and Set and Positioning tooling |
| CN208935173U (en) * | 2018-09-20 | 2019-06-04 | 洛阳华冠齿轮股份有限公司 | A kind of differential assembly cylindrical roller thrust spherical bearing |
-
2018
- 2018-09-20 CN CN201811165557.5A patent/CN109027011A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040134307A1 (en) * | 2002-12-02 | 2004-07-15 | Pascoe David Mark | Differential housing with integrated ring gear |
| CN102410352A (en) * | 2011-11-25 | 2012-04-11 | 洛阳华冠齿轮股份有限公司 | Improved transmission structure of automobile inter-axial differential system |
| CN206175604U (en) * | 2016-11-11 | 2017-05-17 | 上汽依维柯红岩商用车有限公司 | Differential mechanism |
| CN106870684A (en) * | 2017-03-17 | 2017-06-20 | 山东湖西王集团有限公司 | automobile differential, bearing combined structure |
| CN206802237U (en) * | 2017-04-28 | 2017-12-26 | 东风商用车有限公司 | Differential mechanism between shafts |
| CN207621290U (en) * | 2017-11-15 | 2018-07-17 | 中国第一汽车股份有限公司 | A kind of high efficiency high life automobile drive bridge speed differientiator assembly |
| CN108436393A (en) * | 2018-03-20 | 2018-08-24 | 中国航发哈尔滨轴承有限公司 | A kind of cylinder roller bearing solid cage processing method and Set and Positioning tooling |
| CN108413004A (en) * | 2018-05-07 | 2018-08-17 | 江苏太平洋齿轮传动有限公司 | Using the high-precision differential mechanism of spherical pad |
| CN208935173U (en) * | 2018-09-20 | 2019-06-04 | 洛阳华冠齿轮股份有限公司 | A kind of differential assembly cylindrical roller thrust spherical bearing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114054815A (en) * | 2022-01-18 | 2022-02-18 | 成都飞机工业（集团）有限责任公司 | High-precision special-shaped hole machining method |
| CN114054815B (en) * | 2022-01-18 | 2022-05-10 | 成都飞机工业（集团）有限责任公司 | High-precision special-shaped hole machining method |
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