CN211039639U - Back auxiliary box planetary mechanism assembly - Google Patents
Back auxiliary box planetary mechanism assembly Download PDFInfo
- Publication number
- CN211039639U CN211039639U CN201921567331.8U CN201921567331U CN211039639U CN 211039639 U CN211039639 U CN 211039639U CN 201921567331 U CN201921567331 U CN 201921567331U CN 211039639 U CN211039639 U CN 211039639U
- Authority
- CN
- China
- Prior art keywords
- planet
- pin
- limiting
- shaft
- planet carrier
- 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.)
- Active
Links
Images
Landscapes
- General Details Of Gearings (AREA)
- Retarders (AREA)
Abstract
The utility model provides a back auxiliary box planetary mechanism assembly, it is big to solve current planet round pin axle and planet carrier mounting means and have the assembly degree of difficulty, perhaps increases the identification hole and makes processing, assembly process complicated and inefficiency, has the inconvenient problem of maintenance in addition when planet round pin axle need be dismantled. The assembly comprises a planet carrier, a plurality of planet pin shafts and a plurality of planet gear shaft holes for mounting the planet pin shafts, wherein the planet carrier is provided with the planet gear; the shaft elastic retainer ring is arranged on the shaft; each planet pin shaft is step-shaped, the outer diameter of the large end of the planet pin shaft is larger than the diameter of the pin shaft hole, a limiting notch is formed in the large end of the planet pin shaft, and the shape of the limiting notch is matched with the outer contour of the limiting ring 3; the small ends of the planetary pin shafts are respectively arranged in the pin shaft holes; the limiting ring is positioned in an area defined by the limiting notches at the large ends of the plurality of planetary pin shafts, and is clamped on the planet carrier through the elastic check ring for the shaft.
Description
Technical Field
The utility model relates to a planetary gear mechanism, concretely relates to back auxiliary box planetary mechanism assembly.
Background
In a multi-gear main and auxiliary box combined mechanical automobile transmission, a rear auxiliary box usually adopts a planetary gear mechanism with higher transmission efficiency, and a rear auxiliary box planetary gear mechanism assembly is usually provided with 4 to 5 planetary pin shafts and planetary gears for stable transmission.
As shown in fig. 1, a rear sub-box planetary mechanism assembly includes a planet carrier 01, 5 planetary pins 02 provided on the planet carrier 01, planetary gears mounted on the planetary pins 02, needle bearings, and other parts (for clearly seeing the planetary pins 02, the planetary gears and the needle bearings are not shown in fig. 1); the planet carrier 01 is provided with 5 pin hole holes for installing the planet pins 02, the side wall of the planet carrier 01 is provided with 5 elastic cylindrical pin installing holes (connecting holes), the 5 elastic cylindrical pin installing holes on the planet carrier 01 are communicated with the 5 pin hole holes respectively, the planet pins 02 are provided with connecting holes 021, the 5 planet pins 02 are arranged in the 5 pin holes on the planet carrier 01 in a penetrating manner respectively, the elastic cylindrical pins 03 sequentially penetrate through the elastic cylindrical pin installing holes and the connecting holes 021 to fix the planet pins 02 on the planet carrier 01, however, after the planet pins 02 are arranged in the pin hole holes of the planet carrier 01, the connecting holes 021 on the planet pins 02 are invisible, the elastic cylindrical pin installing holes of the planet carrier 01 and the connecting holes 021 on the planet pins 02 are not easy to align, and the assembly difficulty is large. As shown in fig. 2, in order to align the centers of the elastic cylindrical pin installation hole of the planet carrier 01 and the coupling hole 021 of the planet pin 02, an identification hole 04 for aligning the position is provided on the visible end surface of the planet pin 02, and the planet pin 02 is assisted to rotate to be in the set assembling position through the identification hole 04. The central axis of the mark 04 hole needs to be in the same plane and perpendicular to the axis of the connecting hole 021 on the planet pin 02 and close to the outer edge of the planet pin 02 so as to easily poke the planet pin 02 to align with the connecting hole 021. The setting of sign hole 04 on planet round pin axle 02 has increased manufacturing procedure, and the position of round pin axle 02 needs to be adjusted through round pin axle sign hole 04 to the assembly at every turn, and 5 elasticity cylindric lock 03 need be installed 5 times to 5 planet round pin axles 02, and the assembly procedure is complicated and inefficiency. In addition, in order to prevent the elastic cylindrical pin 03 from falling off in the working process of the transmission, the elastic cylindrical pin mounting hole on the planet carrier 01 is usually set as a blind hole, once the elastic cylindrical pin 03 is installed in the elastic cylindrical pin mounting hole of the planet carrier 01 and the connecting hole 021 of the planet pin 02, when disassembly is needed, the elastic cylindrical pin 03 can only be forcibly broken, and the residual pin body is withdrawn from the hole, so that maintenance is inconvenient, and if the elastic cylindrical pin mounting hole on the planet carrier 01 is set as a through hole, the risk that the elastic cylindrical pin 03 is dislocated and separated exists, which affects the working process of the transmission.
SUMMERY OF THE UTILITY MODEL
There is the assembly degree of difficulty big in order to solve current planet round pin axle and planet carrier mounting means, perhaps increases the sign hole and makes processing, assembly process complicated and inefficiency, has the inconvenient technical problem of maintenance when planet round pin axle needs to be dismantled in addition, the utility model provides a back auxiliary box planetary mechanism assembly.
In order to achieve the above purpose, the utility model provides a technical scheme is:
a rear auxiliary box planetary mechanism assembly comprises a planet carrier, a plurality of planetary pin shafts, a plurality of planetary gears and needle roller bearings, wherein the planet carrier is provided with a plurality of pin shaft holes for mounting the planetary pin shafts; it is characterized in that: the shaft elastic retainer ring is arranged on the shaft; each planet pin shaft is step-shaped, the outer diameter of the large end of the planet pin shaft is larger than the diameter of the pin shaft hole, a limiting notch is formed in the large end of the planet pin shaft, and the shape of the limiting notch is matched with the outer contour of the limiting ring 3; the small ends of the planetary pin shafts are respectively arranged in the pin shaft holes; the limiting ring is positioned in an area defined by the limiting notches at the large ends of the plurality of planetary pin shafts, and is clamped on the planet carrier through the elastic check ring for the shaft.
Furthermore, the limiting notch is an arc-shaped notch, and the curvature radius of the arc-shaped notch is the same as that of the limiting ring 3.
Furthermore, the axial depth of the limiting notch is equal to the axial length of the large end of the planet pin shaft.
Further, the axial depth of the limiting notch is smaller than or equal to the thickness of the limiting ring.
Furthermore, the planet carrier has seted up the snap ring groove along the circumferencial direction, the circlip for the axle clamps in the snap ring groove.
Further, the number of the planet pin shafts is 5.
Compared with the prior art, the utility model has the advantages that:
1. the utility model discloses back auxiliary box planetary mechanism assembly has cancelled current planet round pin and has adopted the elasticity cylindric lock to fix the connected mode on the planet carrier, through designing a spacing ring, the spacing ring cooperates the installation with the spacing breach of planet round pin axle main aspects, fixes the spacing ring on the planet carrier through the circlip for the axle, and then realizes that planet round pin axle installs on the planet carrier, need not beat the hookup hole that the position degree required height on planet round pin axle and planet carrier, planet round pin axle head face need not set up the sign hole that is used for finding the position, processing, installation simple process;
the utility model discloses need not look for one by one when assembling the planet round pin axle and align the hookup hole on planet round pin axle and the planet carrier, spacing breach and spacing ring cooperation on the round pin axle of all planet are sold in the location through the planet, and one-time dress card can be accomplished, convenient assembling and efficient.
2. The utility model discloses planet round pin axle is dismantled conveniently in back auxiliary box planetary mechanism assembly, only need tear off axle and use circlip, can take off spacing ring and planet round pin axle in proper order, and any part can not be destroyed to this dismantlement process.
3. The utility model discloses planet carrier and planet round pin axle hookup reliability are high in the vice case planetary mechanism assembly of back, can stop the risk that the rotatory elasticity cylindric lock of current planet carrier deviates from.
4. The utility model discloses spacing breach be with the convex breach of the outer anchor ring looks adaptation of spacing ring, can be better circumference spacing, prevent that the planet round pin axle from around its axle center rotation.
Drawings
FIG. 1 is a schematic structural view of a prior art rear sub-tank planetary mechanism assembly (planetary gears not shown);
FIG. 2 is a schematic structural diagram of a planetary pin in a conventional rear sub-box planetary mechanism assembly;
in fig. 1 and 2, the reference numerals are as follows:
01-planet carrier, 02-planet pin shaft, 021-connecting hole, 03-elastic cylindrical pin and 04-marking hole.
FIG. 3 is a schematic structural view of the rear sub-tank planetary mechanism assembly of the present invention (planetary gears not shown);
FIG. 4 is a top view of the rear sub-tank planetary mechanism assembly of the present invention;
FIG. 5 is a sectional view taken along line A-A of FIG. 4;
FIG. 6 is a schematic structural view of a limit ring in the rear auxiliary box planetary mechanism assembly of the present invention;
FIG. 7 is a schematic structural view of a planetary pin shaft in the planetary mechanism assembly of the rear sub-box of the present invention;
FIG. 8 is a schematic view of the installation and the cooperation between the planet pin and the planet carrier of the present invention;
in fig. 3 to 8, the reference numerals are as follows:
1-planet carrier, 2-planet pin shaft, 21-side surface, 22-blind hole, 23-oil channel, 3-limit ring and 4-elastic retainer ring for shaft.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
As shown in fig. 3 to 8, a rear auxiliary box planetary mechanism assembly comprises a planet carrier 1, a plurality of planetary pin shafts 2, a plurality of planetary gears, a limiting ring 3 and an axial elastic retainer ring 4, wherein the planet carrier 1 is provided with a plurality of pin shaft holes for mounting the planetary pin shafts 2, the planetary pin shafts 2 and the planet carrier 1 are positioned and mounted in a new way, and the limiting notch and the limiting ring 3 are mounted in a matched manner by designing a step with a limiting notch at the rear end of the planetary pin shaft 2, so that the circumferential and axial limiting of the planetary pin shafts 2 is realized; the limit ring 3 is positioned on the planet carrier 1 by a circlip 4 for a shaft. The structure does not need to rotate the planet pin shafts 2 one by one to find the position of the connecting hole during assembly. All pin shafts can be assembled and positioned on the planet carrier 1 at one time, the process is simple, the disassembly is convenient, the risk of the elastic cylindrical pin falling off does not exist, and the positioning is more reliable.
As shown in fig. 5, the left side is a front end, the right side is a rear end, a blind hole 22 is formed in the center of the front end of each planet pin 2 along the axial direction, the blind hole 22 is an oil passage 23 on the planet pin 2, an oil hole communicated with the blind hole 22 is formed in the outer surface of the planet pin 2 along the circumferential direction, and the oil passage 23 is used for introducing lubricating oil into the planet pin 2 and reaching the surface of the planet pin 2 through the radial oil hole to lubricate a needle bearing mounted on the planet pin 2; the planet pin shaft 2 is step-shaped, the outer diameter of the small end of the planet pin shaft is equal to the diameter of a pin shaft hole in the planet carrier 1, the outer diameter of the large end of the planet pin shaft is larger than the diameter of the pin shaft hole, a limiting notch is formed in the end face of the large end, the shape of the limiting notch is matched with the outer contour of the limiting ring 3 and can be an arc notch, the curvature radius of the arc notch is the same as that of the limiting ring 3, and the side face 21 of the limiting notch is an arc curved surface matched with the outer ring face of the; the small ends of the 5 planetary pin shafts 2 are respectively arranged in the 5 pin shaft holes of the planetary frame 1, the large ends of the 5 planetary pin shafts are in contact with the rear end face of the planetary frame 1, the limiting rings 3 are coaxially sleeved on the planetary frame 1, the limiting rings 3 are positioned in the area defined by the large-end limiting notches of the planetary pin shafts 2, the limiting rings are clamped on the planetary frame 1 through the elastic check rings 4 for shafts, and then the planetary pin shafts 2 are installed on the planetary frame 1. The side surface 21 of the limiting notch at the big end of each 5 planet pin shaft 2 is matched and installed with the outer ring surface of the limiting ring 3, the planet pin shafts 2 can be prevented from rotating circumferentially, the bottom surface of the limiting notch on each planet pin shaft 2 is abutted against the bottom end surface of the limiting ring 3, and meanwhile, the bottom surface of the step at the big end of each planet pin shaft 2 is abutted against the rear end surface of the planet carrier 1, and the axial movement of the planet pin shafts 2 can be prevented.
The planet carrier 1 has seted up the snap ring groove along the circumferencial direction, and axle is installed in the snap ring groove with circlip 4, and the snap ring groove is coaxial with planet carrier 1, and axle is spacing 3 axial of spacing ring with circlip 4, accomplishes the assembly positioning of planet round pin axle 2 on planet carrier 1.
In the embodiment, the side surface 21 of the limiting notch can better limit circumferentially, so that the planetary pin shaft 2 is prevented from rotating around the axis; the axial depth of the limiting notch is equal to the axial length of the large end of the planet pin shaft 2, so that the limiting ring can be simultaneously attached to the end surface of the planet carrier when the axial depth is equal to the axial length, the assembly is stable, the axial space is saved, the large end bottom of the planet pin shaft limits the forward movement of the planet pin shaft, and the bottom surface of the notch limits the backward movement of the pin shaft; the axial depth of the limiting notch is equal to the thickness of the limiting ring 3 or less than the thickness of the limiting ring 3.
During the assembly, pack into the round pin shaft hole with 5 planet round pin axle 2's tip from the rear end of planet carrier 1 to the front end in proper order, make each spacing breach of planet round pin axle 2 inboard towards planet carrier 1, by planet carrier 1 rear end cover income spacing ring 3 again, assemble spacing ring 3 in spacing breach, then the axle clamps on planet carrier 1's snap ring groove with circlip 4, fixes spacing ring 3, and then realizes that planet round pin axle 2 installs on planet carrier 1.
When the dismounting device is used for dismounting, the elastic retainer ring 4 for the shaft is firstly dismounted, the limiting ring 3 is taken down, and the planet pin shaft 2 is dismounted.
In the rear auxiliary box planetary mechanism assembly, the planet carrier 1 and the planet pin shaft 2 do not need to be provided with connecting holes with high requirement on position degree, the end surface of the planet pin shaft 2 does not need to be provided with identification holes for position finding, and the processing technology is simple; when the planet pin shafts 2 are assembled, the connection holes between the planet pin shafts 2 and the planet carrier 1 do not need to be aligned one by one, and the positioning of all the planet pin shafts 2 can be completed through one-time clamping, so that the efficiency is higher; meanwhile, the disassembly is convenient, the limit ring 3 and the planet pin shaft 2 can be taken down only by removing the elastic retainer ring 4 for the shaft, and any part does not need to be damaged; the risk that the elastic cylindrical pin is separated from the conventional auxiliary box planet carrier 1 in rotation is avoided, and the connection reliability is higher.
The above description is only for the preferred embodiment of the present invention, and the technical solution of the present invention is not limited thereto, and any known modifications made by those skilled in the art on the basis of the main technical idea of the present invention belong to the technical scope to be protected by the present invention.
Claims (6)
1. A rear auxiliary box planetary mechanism assembly comprises a planet carrier (1), a plurality of planetary pin shafts (2), a plurality of planetary gears and needle roller bearings, wherein the planet carrier (1) is provided with a plurality of pin shaft holes for mounting the planetary pin shafts (2); the method is characterized in that: the shaft elastic retainer ring also comprises a limiting ring (3) and a shaft elastic retainer ring (4);
each planet pin shaft (2) is step-shaped, the outer diameter of the large end of the planet pin shaft is larger than the diameter of the pin shaft hole, a limiting notch is formed in the large end of the planet pin shaft, and the shape of the limiting notch is matched with the outer contour of the limiting ring (3);
the small ends of the planet pin shafts (2) are respectively arranged in the pin shaft holes;
the limiting ring (3) is positioned in an area defined by the limiting notches at the large ends of the plurality of planet pin shafts (2), and is clamped on the planet carrier (1) through the elastic retainer ring (4) for the shaft.
2. The rear sub-box planetary mechanism assembly according to claim 1, wherein: the limiting notch is an arc-shaped notch, and the curvature radius of the arc-shaped notch is the same as that of the limiting ring (3).
3. The rear sub-box planetary mechanism assembly according to claim 2, wherein: the axial depth of the limiting notch is equal to the axial length of the large end of the planet pin shaft (2).
4. The rear sub-box planetary mechanism assembly according to any one of claims 1 to 3, characterized in that: the axial depth of the limiting notch is smaller than or equal to the thickness of the limiting ring (3).
5. The rear sub-box planetary mechanism assembly according to claim 4, wherein: the planet carrier (1) has seted up the snap ring groove along the circumferencial direction, circlip (4) for the axle clamps in the snap ring groove.
6. The rear sub-box planetary mechanism assembly according to claim 1, wherein: the number of the planet pin shafts (2) is 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921567331.8U CN211039639U (en) | 2019-09-20 | 2019-09-20 | Back auxiliary box planetary mechanism assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921567331.8U CN211039639U (en) | 2019-09-20 | 2019-09-20 | Back auxiliary box planetary mechanism assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211039639U true CN211039639U (en) | 2020-07-17 |
Family
ID=71532398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921567331.8U Active CN211039639U (en) | 2019-09-20 | 2019-09-20 | Back auxiliary box planetary mechanism assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211039639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324899A (en) * | 2020-11-24 | 2021-02-05 | 北方汤臣传动科技有限公司 | Long-service-life planet row structure |
-
2019
- 2019-09-20 CN CN201921567331.8U patent/CN211039639U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324899A (en) * | 2020-11-24 | 2021-02-05 | 北方汤臣传动科技有限公司 | Long-service-life planet row structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211039639U (en) | Back auxiliary box planetary mechanism assembly | |
| US20090305835A1 (en) | Four Pinion Differential With Cross Pin Retention Unit And Related Method | |
| CN107009318A (en) | Bearing disassembling device | |
| GB2384837A (en) | Differential with ring gear mounted to a housing by a clamp | |
| CA2429087A1 (en) | Driving and locking mechanism for a threaded bearing cup | |
| CN101765724A (en) | Arrangement for attaching a modular clutch device on a driven shaft | |
| CN110725938A (en) | Back auxiliary box planetary mechanism assembly | |
| CN105658999A (en) | Support device for light-structure differential transmission device | |
| US7052184B2 (en) | Bearing sleeve and method of making | |
| CN102506043B (en) | Retainer ring component of shaft | |
| CN210389072U (en) | Bearing press-fitting tool for assembling speed reducer | |
| CN211220517U (en) | Dismounting device | |
| CN210555091U (en) | Connecting structure of steering machine and steering column, steering system and vehicle | |
| CN213261939U (en) | New forms of energy driving motor and whole rear axle | |
| CN220622701U (en) | Cantilever type planet carrier with detachable side plates | |
| CN109987188B (en) | Front fork hook end assembly for fixing bicycle hub axle | |
| CN220082066U (en) | Split differential mechanism assembly | |
| CN218347790U (en) | Bearing bush positioning structure, engine and vehicle | |
| CN214441829U (en) | Convex block ring star roller shaft with modular structure | |
| CN215567744U (en) | Split type ABS ring gear | |
| CN215096787U (en) | Automobile rear hub assembly | |
| CN207104806U (en) | Bearing disassembling device | |
| CN112008653A (en) | Method for disassembling bearing | |
| CN214727979U (en) | Lower-opening rear traction device | |
| CN219809379U (en) | Differential mechanism structure integrated with additional planet carrier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |