CN203442092U - Wheel-side reducer and planet gear shaft limiting structure thereof and vehicle - Google Patents
Wheel-side reducer and planet gear shaft limiting structure thereof and vehicle Download PDFInfo
- Publication number
- CN203442092U CN203442092U CN201320560151.3U CN201320560151U CN203442092U CN 203442092 U CN203442092 U CN 203442092U CN 201320560151 U CN201320560151 U CN 201320560151U CN 203442092 U CN203442092 U CN 203442092U
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- China
- Prior art keywords
- wheel reductor
- wheel
- planet pin
- mounting hole
- limit structure
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Abstract
The utility model discloses a wheel-side reducer and a planet gear shaft limiting structure thereof and a vehicle. The planet gear shaft limiting structure of the wheel-side reducer comprises planet gear shafts (2) and a wheel-side reducer frame (3), the wheel-side reducer frame is provided with a mounting hole (4), a sun wheel of the wheel-side reducer penetrates through the mounting hole to be installed and is coaxial with the mounting hole, a plurality of planet gear shafts are arranged around the axis of the mounting hole, an annular groove (6) is formed in a hole wall of the mounting hole, notches (7) corresponding to the annular groove are formed on the peripheries of the planet gear shafts, the planet gear shaft limiting structure further comprises an elastic check ring (5), and the elastic check ring is arranged in the annular groove and protruded in the radial direction so as to enter the notches. The utility model further discloses the wheel-side reducer with the limiting structure and the vehicle. According to the technical scheme, axial limitation of all the planet gear shafts can be achieved only by arranging the elastic check ring, the structure is simplified, and the number of parts is reduced.
Description
Technical field
The utility model relates to wheel reductor, particularly, and the wheel reductor and the vehicle that relate to a kind of planet pin limit structure of wheel reductor and there is this limit structure.
Background technique
On the vehicles such as heavy motor truck, go-anywhere vehicle and motorbus, when the final ratio that requires to provide larger and larger ground Clearance, adopt the kind of drive of main reducing gear match wheel side reducer can obtain better effects.
Wheel reductor generally includes wheel reductor framework 3 and is arranged on the planetary gears in this wheel reductor framework 3, this planetary gears comprises planet wheel 1 and sun gear (not shown), planet wheel 1 is supported in wheel reductor framework 3 by planet pin 2, and a plurality of planet wheel 1 is engaged on sun gear around.
Fig. 1 is the schematic cross sectional views of planet pin limit structure of the wheel reductor of prior art.As shown in Figure 1, the end of close mounting hole 4 one sides of planet pin 2 offers the first spacing hole 11, offers second spacing hole 12 corresponding with this first spacing hole 11 on the hole wall of mounting hole 4.During assembling, first the first spacing hole 11 is alignd with the second spacing hole 12, then spring pin 10 is squeezed into the second spacing hole 12 and the first spacing hole 11 from hole wall one side of mounting hole 4, and be interference fit between spring pin 10 and planet pin 2 and wheel reductor framework 3.
Due in wheel reductor, the quantity of planet pin 2 is generally a plurality of (for example 5), therefore, above-mentioned limit structure needs a plurality of spring pin 10 with spacing each planet pin 2, and the assembly manipulation of spring pin 10 also needs to carry out repeatedly, thereby there is complex structure, the defects such as inconvenience be installed in above-mentioned limit structure.In addition, when needing repairing dismounting, spring pin 10 need to be continued to knock toward planet pin 2 inside, after spring pin 10 all enters planet pin 2 inside, planet pin 2 be extruded from wheel reductor framework 3; If sometimes spring pin 10 cannot be squeezed into planet pin 2 inside, planet pin 2 can only be extruded by force from wheel reductor framework 3, cut off spring pin 10.Therefore, the maintainalbility of above-mentioned limit structure is poor, and has accessory loss.Moreover in above-mentioned limit structure, the inefficacy of a spring pin 10 can cause that wheel reductor lost efficacy, safety coefficient is lower.
Model utility content
The purpose of this utility model is to provide a kind of planet pin limit structure of wheel reductor, and this limit structure is simple and easy for installation.
To achieve these goals, the utility model provides a kind of planet pin limit structure of wheel reductor, comprise planet pin and wheel reductor framework, described wheel reductor framework has mounting hole, the sun gear of described wheel reductor is installed through described mounting hole and is coaxial with described mounting hole, a plurality of described planet pins are around the axis arranged of described mounting hole, wherein, on the hole wall of described mounting hole, be formed with circular groove, on the outer circumferential face of described planet pin, be formed with the breach corresponding with described circular groove, described planet pin limit structure also comprises circlip, this circlip is arranged at described circular groove and radially outstanding to enter in described breach.
Preferably, the radial length of the sidewall of close described sun gear one side of described circular groove is greater than the radial length of the sidewall away from described sun gear one side of described circular groove.
Preferably, between described planet pin outer circumferential face and described wheel reductor framework, be provided with Sealing.
Preferably, described Sealing is seal ring, and sealing circle is arranged on the end away from described circlip one side of described planet pin.
Preferably, on described wheel reductor framework, be also provided with the bounding means for preventing that described circlip from rotating.
Preferably, described bounding means is stop screw, on described wheel reductor framework, is formed with tapped hole, and described stop screw passes described tapped hole with spacing described circlip.
Preferably, described wheel reductor framework is integrally formed, and the planet wheel of described wheel reductor is installed through described mounting hole.
The utility model also provides a kind of wheel reductor, and this wheel reductor comprises the planet pin limit structure of wheel reductor of the present utility model.
The utility model also provides a kind of vehicle, and this vehicle comprises wheel reductor of the present utility model.
By technique scheme, due to the axis arranged of a plurality of planet pins around described mounting hole, therefore only the axial limiting that a circlip can be realized all planet pins need be set, simplify the structure, reduced the quantity of component.And owing to for example, can processing circular groove without dedicated tool (can only by milling), therefore, with respect to the technique of the processing spacing hole of prior art, difficulty and the cost of processing circular groove are lower.In addition, when needing repairing dismounting, only need take off circlip, and can not cause the damage of other parts, greatly increase convenience and the reliability of maintenance.
Other features and advantages of the utility model partly in detail are described the embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is the schematic cross sectional views of planet pin limit structure of the wheel reductor of prior art;
Fig. 2 is according to the schematic cross sectional views of the planet pin limit structure of the wheel reductor of a kind of mode of execution of the present utility model;
Fig. 3 is the planimetric map of the planet pin of Fig. 2;
Fig. 4 is the sectional view that the A-A line along Fig. 3 dissects;
Fig. 5 is the enlarged view of the I part of Fig. 2;
Fig. 6 is the enlarged view of the II part of Fig. 2.
Description of reference numerals
1 planet wheel 2 planet pins
3 wheel reductor framework 4 mounting holes
5 circlip 6 circular grooves
7 breach 8 seal rings
9 stop screw 10 spring pin
11 first spacing hole 12 second spacing holes
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
In the utility model, in the situation that not doing contrary explanation, the noun of locality of use refers to inside and outside with respect to the profile of each parts itself as " inside and outside ".
As shown in Figures 2 to 6, according to an aspect of the present utility model, a kind of planet pin limit structure of wheel reductor is provided, comprise planet pin 2 and wheel reductor framework 3, described wheel reductor framework 3 has mounting hole 4, the sun gear of described wheel reductor is installed through described mounting hole 4 and is coaxial with mounting hole 4, a plurality of described planet pins 2 are around the axis arranged of described mounting hole 4, wherein in preferred implementation of the present utility model, wheel reductor framework 3 is integrally formed, thereby be convenient on the one hand manufacture, make on the other hand wheel reductor framework 3 bear integratedly various load, now planet wheel 1 also can be installed through mounting hole 4.Wherein in order to realize the purpose of this utility model, on the hole wall of described mounting hole 4, be formed with circular groove 6, on the outer circumferential face of described planet pin 2, be formed with the breach 7 corresponding with described circular groove 6, described planet pin limit structure also comprises circlip 5, and this circlip 5 is arranged at described circular groove 6 and radially outstanding to enter in described breach 7.Be that mounting hole 4 communicates by circular groove 6 with the axis hole that planet pin is installed.
In the utility model, can be by the radially outstanding breach 7 that enters planet pin 2 of circlip 5 and clip planet pin 2, thus make planet pin 2 with respect to wheel reductor framework 3 axial restraints.Wherein dexterously, due to the axis arranged of a plurality of planet pins 2 around described mounting hole 4, therefore only the axial limiting that a circlip 5 can be realized all planet pins 2 need be set, simplify the structure, reduce the quantity of component.And owing to for example, can processing circular groove 6 without dedicated tool (can only by milling), therefore, with respect to the technique of the processing spacing hole of prior art, difficulty and the cost of processing circular groove 6 are lower.In addition, when needing repairing dismounting, only need take off circlip 5, and can not cause the damage of other parts, greatly increase convenience and the reliability of maintenance.
For the circlip 5 that is easy for installation and removal, preferably, the radial length of the sidewall of close described sun gear one side of described circular groove 6 is greater than the radial length of the sidewall away from described sun gear one side of described circular groove 6.In other words, mounting hole 4 can form shoulder hole, and the aperture of one end away from described sun gear of this shoulder hole is larger, thereby makes only to need very little power circlip 5 can be stuck in circular groove 6.Here, circlip 5 can be for example hole jump ring.
Preferably, between described planet pin 2 outer circumferential faces and described wheel reductor framework 3, be provided with Sealing, thereby can prevent the oil leakage in wheel reductor, make to seal stability, reliability is higher.
Described Sealing can be for being arranged on the seal ring 8 of the end away from described circlip 5 one sides of described planet pin 2, and sealing circle 8 can be for example O-ring seals.
Because circlip 5 has opening conventionally, in order to prevent that this opening turns to the position corresponding with breach 7 and planet pin 2 is deviate from from circlip 5 in running, preferably, on described wheel reductor framework 3, be also provided with the bounding means for preventing that described circlip 5 from rotating.
Particularly, described bounding means can be stop screw 9, on described wheel reductor framework 3, can be formed with tapped hole, and described stop screw 9, rotates thereby limit circlip 5 with spacing described circlip 5 through described tapped hole in circular groove 6.
According on the other hand of the present utility model, a kind of wheel reductor is provided, this wheel reductor comprises the planet pin limit structure according to wheel reductor of the present utility model.
According to of the present utility model, provide a kind of vehicle also on the other hand, this vehicle comprises according to wheel reductor of the present utility model.
Briefly describe below according to assembling and the unloading process of the planet pin limit structure of the wheel reductor of preferred implementation of the present utility model.
First, seal ring annular groove (unmarked) on wheel reductor framework 3 assembles seal ring 8, on seal ring 8, smear one deck lubricating grease, then, by planet pin 2 transition fit on wheel reductor framework 3, breach on each planet pin 2 is aimed at circular groove 6, then circlip 5 is arranged in circular groove 6, can assemble complete.During dismounting, contrary with assemble sequence.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition each the concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.In addition, between various mode of execution of the present utility model, also can carry out combination in any, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (9)
1. the planet pin limit structure of a wheel reductor, comprise planet pin (2) and wheel reductor framework (3), described wheel reductor framework (3) has mounting hole (4), the sun gear of described wheel reductor is installed through described mounting hole (4) and is coaxial with described mounting hole (4), a plurality of described planet pins (2) are around the axis arranged of described mounting hole (4), it is characterized in that, on the hole wall of described mounting hole (4), be formed with circular groove (6), on the outer circumferential face of described planet pin (2), be formed with the breach (7) corresponding with described circular groove (6), described planet pin limit structure also comprises circlip (5), this circlip (5) is arranged at described circular groove (6) and radially outstanding to enter in described breach (7).
2. the planet pin limit structure of wheel reductor according to claim 1, it is characterized in that, the radial length of the sidewall of close described sun gear one side of described circular groove (6) is greater than the radial length of the sidewall away from described sun gear one side of described circular groove (6).
3. the planet pin limit structure of wheel reductor according to claim 1, is characterized in that, between described planet pin (2) outer circumferential face and described wheel reductor framework (3), is provided with Sealing.
4. the planet pin limit structure of wheel reductor according to claim 3, it is characterized in that, described Sealing is seal ring (8), and sealing circle (8) is arranged on the end away from described circlip (5) one sides of described planet pin (2).
5. according to the planet pin limit structure of the wheel reductor described in any one in claim 1 to 4, it is characterized in that, on described wheel reductor framework (3), be also provided with the bounding means for preventing that described circlip (5) from rotating.
6. the planet pin limit structure of wheel reductor according to claim 5, it is characterized in that, described bounding means is stop screw (9), on described wheel reductor framework (3), be formed with tapped hole, described stop screw (9) passes described tapped hole with spacing described circlip (5).
7. the planet pin limit structure of wheel reductor according to claim 1, is characterized in that, described wheel reductor framework (3) is integrally formed, and the planet wheel of described wheel reductor (1) is installed through described mounting hole (4).
8. a wheel reductor, is characterized in that, this wheel reductor comprises the planet pin limit structure according to the wheel reductor described in any one in claim 1 to 7.
9. a vehicle, is characterized in that, this vehicle comprises wheel reductor according to claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560151.3U CN203442092U (en) | 2013-09-10 | 2013-09-10 | Wheel-side reducer and planet gear shaft limiting structure thereof and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560151.3U CN203442092U (en) | 2013-09-10 | 2013-09-10 | Wheel-side reducer and planet gear shaft limiting structure thereof and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203442092U true CN203442092U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320560151.3U Expired - Lifetime CN203442092U (en) | 2013-09-10 | 2013-09-10 | Wheel-side reducer and planet gear shaft limiting structure thereof and vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN203442092U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385911A (en) * | 2014-11-24 | 2015-03-04 | 南京创捷和信汽车零部件有限公司 | Front steering drive axle for large tractor |
| CN105465343A (en) * | 2015-12-25 | 2016-04-06 | 中车戚墅堰机车车辆工艺研究所有限公司 | Limiting structure |
| CN110529583A (en) * | 2019-08-13 | 2019-12-03 | 一汽解放汽车有限公司 | A kind of hub reduction gear end face seal structure |
-
2013
- 2013-09-10 CN CN201320560151.3U patent/CN203442092U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385911A (en) * | 2014-11-24 | 2015-03-04 | 南京创捷和信汽车零部件有限公司 | Front steering drive axle for large tractor |
| CN104385911B (en) * | 2014-11-24 | 2017-03-15 | 南京创捷和信汽车零部件有限公司 | Large tractor front steering drive axle |
| CN105465343A (en) * | 2015-12-25 | 2016-04-06 | 中车戚墅堰机车车辆工艺研究所有限公司 | Limiting structure |
| CN105465343B (en) * | 2015-12-25 | 2017-08-08 | 中车戚墅堰机车车辆工艺研究所有限公司 | Position limiting structure |
| CN110529583A (en) * | 2019-08-13 | 2019-12-03 | 一汽解放汽车有限公司 | A kind of hub reduction gear end face seal structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |
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| CX01 | Expiry of patent term |