CN204784613U - Driven bull wheel of rear axle - Google Patents
Driven bull wheel of rear axle Download PDFInfo
- Publication number
- CN204784613U CN204784613U CN201520522035.1U CN201520522035U CN204784613U CN 204784613 U CN204784613 U CN 204784613U CN 201520522035 U CN201520522035 U CN 201520522035U CN 204784613 U CN204784613 U CN 204784613U
- Authority
- CN
- China
- Prior art keywords
- bull wheel
- pin
- hole
- driven bull
- back axle
- 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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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model discloses a driven bull wheel of rear axle, set up in the collar of this internal circle of bull wheel with fixed including the bull wheel body, be provided with on the collar and be used for fixing the bolt hole of bull wheel body, still be provided with the pinhole on the collar, be provided with in the pinhole and be used for the spacing locating pin of bull wheel body circumference, through the cooperation setting of locating pin and pinhole, can realize driven bull wheel of rear axle circumference fixedly, guarantee that driven bull wheel of rear axle is fixed stable, avoid because the bolt hole machining precision produces the phenomenon that the part hole skidded and led to the fact the spare part damage, the life and the reliability of improvement product in the clearance between bolt and the bolt hole with the former of bolt surface helicitic texture therefore in resulting in driving motor vehicles behind the atress.
Description
Technical field
The utility model relates to gear part field, is specifically related to the driven bull wheel of a kind of back axle.
Background technique
At automobile manufacturing field, back axle is the constituent element of the rear drive shaft that vehicle power transmits, and is generally made up of two half-bridges, and is provided with the differential motion that differential mechanism realizes left and right trailing wheel; And in the driving mechanism of power, utilize less drive bevel gear to coordinate with the larger driven bull wheel-driving being fixed on differential mechanism, realize the transmission of power; In prior art, the means of fixation of driven bull wheel adopts the retaining ring be provided with in driven bull wheel inner circle for installing, bolt hole is offered on the surface of retaining ring, by offering the bolt hole of corresponding pairing on differential mechanism part, driven bull wheel is fixed and differential mechanism by the mode be bolted; But, due to turn join after for the reason due to bolt hole machining accuracy and bolt surface worm structure between the bolt of fixing driven bull wheel and screw hole, cause the gap in vehicle travel process between bolt and bolt hole skid at stressed rear generation inner bore of part and cause the phenomenon of damage of components, have a strong impact on working life and the reliability of product.
Therefore, for overcoming the above problems, need the driven bull wheel of a kind of back axle, effectively can prevent the gap in vehicle travel process between bolt and bolt hole from skidding at stressed rear generation inner bore of part and causing the phenomenon of damage of components, improve working life and the reliability of product.
Model utility content
In view of this, the purpose of this utility model overcomes defect of the prior art, there is provided a kind of back axle driven bull wheel, effectively can prevent the gap in vehicle travel process between bolt and bolt hole from skidding at stressed rear generation inner bore of part and causing the phenomenon of damage of components, improve working life and the reliability of product.
The driven bull wheel of back axle of the present utility model, comprise bull wheel body and the installing ring being fixedly installed on bull wheel body inner circle, described installing ring is provided with the bolt hole for fixing described bull wheel body, described installing ring is also provided with pin-and-hole, is provided with in described pin-and-hole for the spacing locating stud of described bull wheel body circumference.
Further, described pin-and-hole inwall is provided with for the annular groove to locating stud axial limiting, described locating stud is provided with can radially to-and-fro motion embed described annular groove and realize spacing spacing ball.
Further, described locating stud comprises pin cylinder, be arranged at pin cylinder in the push rod of pin cylinder axial sliding fit be arranged at push rod end for providing the spring of axial pre tightening force, described pin barrel is disposed radially the groove holding described spacing ball, aligns and discharge the annular release groove of described spacing ball after described push rod outer round surface is provided with axial motion with described groove.
Further, described pin tube rear end portion is fixedly installed cover plate, and described putting back-end face is fixedly installed and less relative to push rod radius pushes away handle, described in push away handle through described cover plate and cover plate axial sliding fit.
Further, described bolt hole and pin-and-hole are four and are evenly arranged along installing ring circumference respectively.
The beneficial effects of the utility model are: the driven bull wheel of a kind of back axle that the utility model provides, by being equipped with of locating stud and pin-and-hole, can realize back axle driven bull wheel circumference fixing, ensure the driven bull wheel fixing-stable of back axle, avoid the reason due to bolt hole machining accuracy and bolt surface worm structure and cause the gap in vehicle travel process between bolt and bolt hole to be skidded at stressed rear generation inner bore of part and cause the phenomenon of damage of components, improving working life and the reliability of product.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the structural representation of locating stud in the utility model.
Embodiment
Fig. 1 is structural representation of the present utility model, Fig. 2 is the A-A sectional view of Fig. 1, Fig. 3 is the structural representation of locating stud in the utility model, as shown in the figure, the driven bull wheel of back axle in the present embodiment, comprises bull wheel body 1 and the installing ring 2 being fixedly installed on bull wheel body 1 inner circle, described installing ring 2 is provided with the bolt hole 3 for fixing described bull wheel body 1, described installing ring 2 is also provided with pin-and-hole 4, is provided with for the spacing locating stud of described bull wheel body 1 circumference in described pin-and-hole 4, described installing ring 2 is one-body molded with described bull wheel body 1, described pin-and-hole 4 is arranged at the side of bolt hole 3, certainly, also be provided with the positioning pin hole 4 of corresponding matching with the bolted differential mechanism part of described installing ring 2 simultaneously, by the cooperation of locating stud and pin-and-hole 4, can realize back axle driven bull wheel circumference fixing, ensure the driven bull wheel fixing-stable of back axle, avoid the reason due to bolt hole 3 machining accuracy and bolt surface worm structure and cause the gap in vehicle travel process between bolt and bolt hole 3 to be skidded at stressed rear generation inner bore of part and cause the phenomenon of damage of components, improve working life and the reliability of product.
In the present embodiment, described pin-and-hole 4 inwall is provided with for the annular groove 5 to locating stud axial limiting, described locating stud is provided with can radially to-and-fro motion embed described annular groove 5 and realize spacing spacing ball 6; The cross section of described annular groove 5 is circular arc and matches with the radian of described spacing ball 6, by fixing for spacing ball 6 radial direction, spacing ball 6 is locked in annular groove 5 by a fixed mechanism in described spacing ball 6 embedded rings connected in star 5, locating stud is avoided to come off, by the axial fixing mechanism of locating stud is provided with in pin-and-hole 4, make compact structure, be beneficial to the driven bull wheel small space of back axle to use, and easy for installation, increase work efficiency.
In the present embodiment, described locating stud comprises pin cylinder 7, to be arranged in pin cylinder 7 with the push rod 8 of pin cylinder 7 axial sliding fit and to be arranged at push rod 8 end for providing the spring 9 of axial pre tightening force, described pin cylinder 7 wall is disposed radially the groove 10 holding described spacing ball 6, aligns and discharge the annular release groove 11 of described spacing ball 6 after described push rod 8 outer round surface is provided with axial motion with described groove 10; Described spring 9 is arranged between front-end face in pin cylinder 7 and described push rod 8 front-end face, front end represents the front end of locating stud, ensure that for providing pretightening force backward for push rod 8 spacing ball 6 is radially pushed into locking in annular groove 5, the port of outer one end of described groove 10 is for the taper mouth radial spacing to spacing ball 6, by the setting of said structure, avoid spacing ball 6 to come off from annular groove 5, ensure spacing fixing-stable when rolling middle locking.
In the present embodiment, described pin cylinder 7 rearward end is fixedly installed cover plate 12, and described push rod 8 ear end face is fixedly installed and less relative to push rod 8 radius pushes away handle 13, described in push away handle 13 through described cover plate 12 and cover plate 12 axial sliding fit; Described cover plate 12 fixedly can be welded in pin cylinder 7 rear end, is convenient to turn join, and pushes away the length of handle 13 described in suitably arranging, and when pushing away, annular release groove 11 when handle 13 shifts the end onto is relative with groove 10, facilitates the mounting or dismounting of locating stud, improves efficiency of assembling.
In the present embodiment, described bolt hole 3 and pin-and-hole 4 are four and are evenly arranged along installing ring 2 circumference respectively; The number of bolt hole 3 and pin-and-hole 4 is rationally set, is convenient to the processing of the driven bull wheel of trailing wheel and ensures fixing stability.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (5)
1. the driven bull wheel of back axle, it is characterized in that: comprise bull wheel body and the installing ring being fixedly installed on bull wheel body inner circle, described installing ring is provided with the bolt hole for fixing described bull wheel body, described installing ring is also provided with pin-and-hole, is provided with in described pin-and-hole for the spacing locating stud of described bull wheel body circumference.
2. the driven bull wheel of back axle according to claim 1, it is characterized in that: described pin-and-hole inwall is provided with for the annular groove to locating stud axial limiting, described locating stud is provided with can radially to-and-fro motion embed described annular groove and realize spacing spacing ball.
3. the driven bull wheel of back axle according to claim 2, it is characterized in that: described locating stud comprises pin cylinder, be arranged at pin cylinder in the push rod of pin cylinder axial sliding fit be arranged at push rod end for providing the spring of axial pre tightening force, described pin barrel is disposed radially the groove holding described spacing ball, aligns and discharge the annular release groove of described spacing ball after described push rod outer round surface is provided with axial motion with described groove.
4. the driven bull wheel of back axle according to claim 3, it is characterized in that: described pin tube rear end portion is fixedly installed cover plate, described putting back-end face is fixedly installed and less relative to push rod radius pushes away handle, described in push away handle through described cover plate and cover plate axial sliding fit.
5. according to the driven bull wheel of back axle that claim 4 is stated, it is characterized in that: described bolt hole and pin-and-hole are four and are evenly arranged along installing ring circumference respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522035.1U CN204784613U (en) | 2015-07-17 | 2015-07-17 | Driven bull wheel of rear axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522035.1U CN204784613U (en) | 2015-07-17 | 2015-07-17 | Driven bull wheel of rear axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784613U true CN204784613U (en) | 2015-11-18 |
Family
ID=54524665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520522035.1U Expired - Fee Related CN204784613U (en) | 2015-07-17 | 2015-07-17 | Driven bull wheel of rear axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784613U (en) |
-
2015
- 2015-07-17 CN CN201520522035.1U patent/CN204784613U/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: 20151118 Termination date: 20170717 |