CN107023645A - A kind of spacer adjusted for bearing pre-fastening and the main gearbox assembly with it - Google Patents
A kind of spacer adjusted for bearing pre-fastening and the main gearbox assembly with it Download PDFInfo
- Publication number
- CN107023645A CN107023645A CN201710285950.7A CN201710285950A CN107023645A CN 107023645 A CN107023645 A CN 107023645A CN 201710285950 A CN201710285950 A CN 201710285950A CN 107023645 A CN107023645 A CN 107023645A
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- CN
- China
- Prior art keywords
- bearing
- spacer
- fastening
- adjusted
- cylindrical structure
- 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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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
- F16H57/022—Adjustment of gear shafts or bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a kind of spacer adjusted for bearing pre-fastening, the spacer is the cylindrical structure of both ends open, and the circumference of the cylindrical structure is provided with axially compressed deformable loop configuration.Utilize the main gearbox assembly of the spacer adjusted for bearing pre-fastening, including driving gear and bearing block and the upper bearing (metal) and lower bearing that are located on bearing block, the spacer adjusted for bearing pre-fastening is set in the bar portion of driving gear, and positioned between upper bearing (metal) and lower bearing.Changed by the deformation of compressibility spacer come the spacing between adaptive bearing and required, mounting and adjusting is easy to operate, saving tradition, adjust pad thickness is operated repeatedly, improves efficiency of assembling；The dimensional tolerance of each shelves machined surface of reducer shell can be suitably reduced simultaneously, manufacturing cost is reduced.
Description
Technical field
The present invention relates to automobile main reducer technical field, more particularly, to a kind of spacer adjusted for bearing pre-fastening
And the main gearbox assembly with it.
Background technology
As shown in figure 3, at present the pretension of main reducing gear of drive axle main drive gear bearing still using level altitude rigidity every
The shim liner 8 of set 7 plus different-thickness is adjusted.Pretension is held to main pinion using such rigid spacer and brings very burden, is padded
When piece selection is thick, bearing locking is even resulted in very much greatly in torque scope inner bearing staring torque；When pad selection is thin, in torque model
In enclosing, bearing pre-fastening not enough, causes bearing spacious, reduces bearing service life, or even active and passive gear occurs to beat tooth existing
The generation of elephant, it is often necessary to which time pad is added in examination repeatedly can just be adjusted to suitable pretightning force, and assembly manipulation is cumbersome.
The content of the invention
Adjusted in view of the shortcomings of the prior art, the technical problems to be solved by the invention are to provide a kind of bearing pre-fastening that is used for
Spacer and main gearbox assembly with it, assembly manipulation easy purpose simple in construction to reach.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
This is used for the spacer that bearing pre-fastening is adjusted, and the spacer is the cylindrical structure of both ends open, the cylindrical structure
Circumference be provided with axially compressed deformable loop configuration.
The loop configuration is to be located at the annular protrusion on the outside of cylindrical structure, and correspondence annular protrusion is formed on the inside of cylindrical structure
Annular groove.
The annular protrusion is located at the axial middle position of cylindrical structure.
Section of the loop configuration along cylindrical structure axial direction is arcuate structure.
The openend of the cylindrical structure is provided with flange face.
Using the main gearbox assembly of the spacer adjusted for bearing pre-fastening, including driving gear and bearing block with
And upper bearing (metal) and lower bearing on bearing block are located at, the spacer adjusted for bearing pre-fastening is set in the bar of driving gear
In portion, and positioned between upper bearing (metal) and lower bearing.
The openend internal diameter of the spacer is identical with the bar portion external diameter of driving gear.
The present invention compared with prior art, with advantages below：
The spacer structure that this is used for bearing pre-fastening adjustment is reasonable in design, by the deformation of compressibility spacer come adaptive
Spacing change between bearing requires that mounting and adjusting is easy to operate, and saving tradition, adjust pad thickness is operated repeatedly, improves dress
With efficiency；The dimensional tolerance of each shelves machined surface of reducer shell can be suitably reduced simultaneously, manufacturing cost is reduced.
Brief description of the drawings
The content expressed by each width accompanying drawing of this specification and the mark in figure are briefly described below：
Fig. 1 is spacer structure schematic diagram of the present invention.
Fig. 2 is main gearbox assembly sectional view of the present invention.
Fig. 3 is existing main gearbox assembly sectional view.
In figure：
1. bevel housing, 2. bearing blocks, 3. driving gears, 4. upper bearing (metal)s, 5. compressibility spacers, 6. lower bearings,
7. rigid spacer, 8. pads.
Embodiment
Below against accompanying drawing, by the description to embodiment, the embodiment to the present invention makees further details of
Explanation.
As depicted in figs. 1 and 2, this is used for the spacer of bearing pre-fastening adjustment, and spacer is the cylindrical structure of both ends open, circle
The circumference of barrel structure is provided with axially compressed deformable loop configuration, forms compressibility spacer 5.
Loop configuration is to be located at the annular protrusion on the outside of cylindrical structure, and correspondence annular protrusion forms annular on the inside of cylindrical structure
Groove.Annular protrusion is located at the axial middle position of cylindrical structure.Section of the loop configuration along cylindrical structure axial direction is arc knot
Structure.The openend of cylindrical structure is provided with flange face, and contact surface is big, and uniform force, end is unlikely to deform.
Or, the openend of cylindrical structure is designed to bell shape structure, two open ended structures of cylindrical structure are set
Meter is identical, and cylindrical structure end capacity compression is deformable, forms compressibility spacer 5.
Include driving gear 3, bevel housing 1 using the main gearbox assembly of compressibility spacer, be located at main deceleration
Bearing block 2 on device housing and the upper bearing (metal) 4 and lower bearing 6 being located on bearing block, compressibility spacer are set in driving tooth
In the bar portion of wheel, and positioned between upper bearing (metal) and lower bearing.The openend internal diameter of spacer is identical with the bar portion external diameter of driving gear.
Compressibility spacer is processed manufacture using the type technique that rises, and uses in rear driving axle main gearbox assembly,
The structure of compressibility spacer is specific as shown in figure 1, wherein diameter dimension L1, L2 is according to main tooth gauge diameter and final drive casing
Bulk is designed, and height dimension H arranges that spacing is designed according to bearing, and design structure need to meet to hold in main pinion and want
In the range of the pretightning force asked, the deflection of compressibility spacer need to hold the tolerance model installed and accumulation is respectively machined by face in main pinion
In enclosing, so that the spacing change requirement that the deformation risen by compressibility spacer at type comes between adaptive bearing.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented not by aforesaid way
Limitation, as long as employ the present invention design and technical scheme carry out various unsubstantialities improvement, or it is not improved will
The design and technical scheme of the present invention directly applies to other occasions, within protection scope of the present invention.
Claims (7)
1. a kind of spacer adjusted for bearing pre-fastening, it is characterised in that：The spacer is the cylindrical structure of both ends open, institute
The circumference for stating cylindrical structure is provided with axially compressed deformable loop configuration.
2. the spacer adjusted as claimed in claim 1 for bearing pre-fastening, it is characterised in that：The loop configuration is to be located at circle
Correspondence annular protrusion formation annular groove on the inside of annular protrusion on the outside of barrel structure, cylindrical structure.
3. the spacer adjusted as claimed in claim 2 for bearing pre-fastening, it is characterised in that：The annular protrusion is located at cylinder
Structure axial direction middle position.
4. the spacer adjusted as claimed in claim 2 for bearing pre-fastening, it is characterised in that：The loop configuration is along cylinder knot
The section of structure axial direction is arcuate structure.
5. the spacer adjusted as claimed in claim 2 for bearing pre-fastening, it is characterised in that：The openend of the cylindrical structure
Provided with flange face.
6. a kind of utilize is used for the main gearbox assembly for the spacer that bearing pre-fastening is adjusted as described in any one of claim 1 to 5,
Including driving gear and bearing block and the upper bearing (metal) and lower bearing that are located on bearing block, it is characterised in that：It is described to be used for bearing
The spacer of pretightning force adjustment is set in the bar portion of driving gear, and positioned between upper bearing (metal) and lower bearing.
7. main gearbox assembly as claimed in claim 6, it is characterised in that：The openend internal diameter and driving gear of the spacer
Bar portion external diameter it is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710285950.7A CN107023645A (en) | 2017-04-27 | 2017-04-27 | A kind of spacer adjusted for bearing pre-fastening and the main gearbox assembly with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710285950.7A CN107023645A (en) | 2017-04-27 | 2017-04-27 | A kind of spacer adjusted for bearing pre-fastening and the main gearbox assembly with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107023645A true CN107023645A (en) | 2017-08-08 |
Family
ID=59528138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710285950.7A Pending CN107023645A (en) | 2017-04-27 | 2017-04-27 | A kind of spacer adjusted for bearing pre-fastening and the main gearbox assembly with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107023645A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595328A (en) * | 2019-01-30 | 2019-04-09 | 汽解放汽车有限公司 | It is a kind of for adjusting the waveform spacer of bearing pre-fastening |
| CN109780179A (en) * | 2019-01-08 | 2019-05-21 | 一汽解放汽车有限公司 | A kind of commercial vehicle main cone bearing pre-tightening structure and its Method of Adjustment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2104777U (en) * | 1991-09-03 | 1992-05-20 | 北京齿轮总厂车桥厂 | Spacing sleeve |
| US6318201B1 (en) * | 1999-11-19 | 2001-11-20 | Dana Corporation | Motor vehicle differential bearing pre-load mechanism |
| CN2786355Y (en) * | 2005-04-06 | 2006-06-07 | 王志宏 | Elastic spacer bush |
| CN201568555U (en) * | 2009-11-11 | 2010-09-01 | 青特集团有限公司 | Main reducing gear bearing pre-tightening force adjusting device |
| CN103758168A (en) * | 2014-01-02 | 2014-04-30 | 洛阳理工学院 | Transmission for driving shaft of cutting wheel of farmland ditching machine |
| CN204041950U (en) * | 2014-06-30 | 2014-12-24 | 长城汽车股份有限公司 | Collapsible dist collar and vehicle main retarder and vehicle |
-
2017
- 2017-04-27 CN CN201710285950.7A patent/CN107023645A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2104777U (en) * | 1991-09-03 | 1992-05-20 | 北京齿轮总厂车桥厂 | Spacing sleeve |
| US6318201B1 (en) * | 1999-11-19 | 2001-11-20 | Dana Corporation | Motor vehicle differential bearing pre-load mechanism |
| CN2786355Y (en) * | 2005-04-06 | 2006-06-07 | 王志宏 | Elastic spacer bush |
| CN201568555U (en) * | 2009-11-11 | 2010-09-01 | 青特集团有限公司 | Main reducing gear bearing pre-tightening force adjusting device |
| CN103758168A (en) * | 2014-01-02 | 2014-04-30 | 洛阳理工学院 | Transmission for driving shaft of cutting wheel of farmland ditching machine |
| CN204041950U (en) * | 2014-06-30 | 2014-12-24 | 长城汽车股份有限公司 | Collapsible dist collar and vehicle main retarder and vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780179A (en) * | 2019-01-08 | 2019-05-21 | 一汽解放汽车有限公司 | A kind of commercial vehicle main cone bearing pre-tightening structure and its Method of Adjustment |
| CN109595328A (en) * | 2019-01-30 | 2019-04-09 | 汽解放汽车有限公司 | It is a kind of for adjusting the waveform spacer of bearing pre-fastening |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170808 |