CN203622286U - Fastening device of differential bearing pre-tightening force adjusting nut - Google Patents
Fastening device of differential bearing pre-tightening force adjusting nut Download PDFInfo
- Publication number
- CN203622286U CN203622286U CN201320845265.2U CN201320845265U CN203622286U CN 203622286 U CN203622286 U CN 203622286U CN 201320845265 U CN201320845265 U CN 201320845265U CN 203622286 U CN203622286 U CN 203622286U
- Authority
- CN
- China
- Prior art keywords
- adjusting nut
- torque spanner
- fastening device
- force adjusting
- differential bearing
- 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.)
- Expired - Fee Related
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- Support Of The Bearing (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model provides a fastening device of a differential bearing pre-tightening force adjusting nut. The fastening device comprises a torque spanner, the end of the torque spanner is provided with an adjusting chuck parallel with the torque spanner, the adjusting chuck is round, and the edge of the adjusting chuck is evenly provided with multiple positioning grooves matched with protrusions on an adjusting nut. The fastening device has the advantages of being simple in structure, convenient to operate, and capable of achieving accurate torque loading, and accordingly proper pre-tightening force on an inner bearing of a main speed reducer in assembly is achieved, supporting rigidity and rotation precision of the main speed reducer are improved, the end faces of workpieces are prevented from being damaged during the assembly process, assembly quality is guaranteed, and labor intensity of workers is reduced.
Description
Technical field
The utility model relates to a kind of fastener of differential bearing pretightning force adjusting nut.
Background technology
Cargo vehicle main reducing gear in the time of operation bears very large load, so main reducing gear inner bearing must have suitable pretightning force in the time of assembling, suitable pretightning force can improve support stiffness and the running accuracy of main reducing gear.As excessive in pretightning force or too smallly can affect properties of product, cross conference and cause bearing life to reduce occurring ablation phenomen, too small support stiffness is low, is prone to abnormal sound.So must increase accurately bearing pre-fastening, and the suitable play of bearing just can be heightened properties of product.The adjusting nut fastened tools that current all market occurs all can not be realized moment accurately and load, and adjusts under environment artificial, can cause bearing pre-fastening excessive or too small.
Summary of the invention
For solving above technical deficiency, the utility model provides a kind of fastener that can realize the differential bearing pretightning force adjusting nut that moment loads accurately,
The utility model is realized by following measures:
The fastener of a kind of differential bearing pretightning force adjusting nut of the present utility model, comprises that moment pulls
Hand, described torque spanner end is provided with the adjustment chuck parallel with torque spanner, and described adjustment chuck is circular, and the edge of adjustment chuck is evenly provided with some locating slots that match with the projection on adjusting nut.
The center of above-mentioned adjustment chuck is provided with square trepanning, and described torque spanner end cross vertically arranges
Have square toes, described square toes match with square trepanning.
Above-mentioned locating slot is interior narrow outer wide trapezoidal.
The beneficial effects of the utility model are: simple in structure, easy to operate, and can realize moment accurately and load, thereby make main reducing gear inner bearing have suitable pretightning force in the time of assembling, improve support stiffness and the running accuracy of main reducing gear.Avoid damaging in assembling process the end face of workpiece, guaranteed assembly quality, also reduced workman's labour intensity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structure schematic diagram of adjusting chuck.
Wherein: 1 torque spanner, 2 adjust chuck, 3 square toes, 4 locating slots, 5 square trepannings.
The specific embodiment
As shown in Figure 1, 2, a kind of differential bearing pretightning force adjusting nut of the present utility model is fastening
Device, comprises torque spanner, and torque spanner 1 end is provided with the adjustment chuck 2 parallel with torque spanner 1, and it is circular adjusting chuck 2, and the edge of adjustment chuck 2 is evenly provided with some locating slots 4 that match with the projection on adjusting nut.The center of adjusting chuck 2 is provided with square trepanning 5, and torque spanner 1 end cross is vertically installed with square toes 3, and square toes 3 match with square trepanning 5.Locating slot 4 is interior narrow outer wide trapezoidal.When use, the square toes of torque spanner 13 are inserted in square trepanning 5, torque spanner 1 is set to the moment size needing, then on the differential bearing pretightning force adjusting nut locating slot 4 of adjusting chuck 2 being fastened, hand-held torque spanner 1 turns bolt, reaching the moment size needing, torque spanner 1 can send prompting.
By coordinating of design modifying chuck 2 and torque spanner 1, the moment that adjusting nut can load accurately when fastening, makes differential mechanism bearings at both ends obtain suitable pretightning force, enhances product performance.This equipment mechanism is simple, practical.Can control accurately bearing pre-fastening, avoid damaging in assembling process the end face of workpiece, guarantee assembly quality, also reduce workman's labour intensity.
The above is only the preferred embodiment of this patent; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the art of this patent principle; can also make some improvement and replacement, these improvement and replacement also should be considered as the protection domain of this patent.
Claims (3)
1. the fastener of a differential bearing pretightning force adjusting nut, it is characterized in that: comprise torque spanner, described torque spanner end is provided with the adjustment chuck parallel with torque spanner, described adjustment chuck is circular, and the edge of adjustment chuck is evenly provided with some locating slots that match with the projection on adjusting nut.
2. the fastener of differential bearing pretightning force adjusting nut according to claim 1, it is characterized in that: the center of described adjustment chuck is provided with square trepanning, described torque spanner end cross is vertically installed with square toes, and described square toes match with square trepanning.
3. the fastener of differential bearing pretightning force adjusting nut according to claim 1, is characterized in that: described locating slot is interior narrow outer wide trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320845265.2U CN203622286U (en) | 2013-12-20 | 2013-12-20 | Fastening device of differential bearing pre-tightening force adjusting nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320845265.2U CN203622286U (en) | 2013-12-20 | 2013-12-20 | Fastening device of differential bearing pre-tightening force adjusting nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203622286U true CN203622286U (en) | 2014-06-04 |
Family
ID=50808804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320845265.2U Expired - Fee Related CN203622286U (en) | 2013-12-20 | 2013-12-20 | Fastening device of differential bearing pre-tightening force adjusting nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203622286U (en) |
-
2013
- 2013-12-20 CN CN201320845265.2U patent/CN203622286U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20211220 |