CN208686934U - Planetary gear axial direction position limiting structure - Google Patents
Planetary gear axial direction position limiting structure Download PDFInfo
- Publication number
- CN208686934U CN208686934U CN201821310787.1U CN201821310787U CN208686934U CN 208686934 U CN208686934 U CN 208686934U CN 201821310787 U CN201821310787 U CN 201821310787U CN 208686934 U CN208686934 U CN 208686934U
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- CN
- China
- Prior art keywords
- planetary gear
- gear shaft
- axial direction
- position limiting
- direction position
- 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.)
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Abstract
The utility model relates to planetary gear axial direction position limiting structures, height is required to solve existing planetary gear axial direction position limiting structure part process manufacture, the problem of assembling and setting complexity, the utility model constructs a kind of planetary gear axial direction position limiting structure, including planetary wheel carrier, multiple planetary gear shafts, the planetary gear in each planetary gear shaft is rotatably installed in by bearing, one end of planetary gear shaft and planetary wheel carrier connect into overall structure, the other end of each planetary gear shaft is fixedly installed with the limit assembly for being limited to planetary gear, the limit assembly of each planetary gear shaft end is mutually indepedent, each limit assembly is fixedly mounted on the end face of corresponding planetary gear shaft by least one threaded fastener, and anti-rotation pin is provided between each limit assembly and corresponding planetary gear shaft.Each independent axial limiting of planetary gear in the utility model reduces each planetary wheel carrier support shaft, axle sleeve and thrust washer dimension relationship, reduces part process manufacture requirement and cost.
Description
Technical field
The utility model relates to a kind of planetary gear mechanisms, and more specifically to a kind of planetary gear, axially limit is tied
Structure.
Background technique
In current engineering machinery planetary gear transmission mechanism, in order to realize biggish transmission in set space structure
Than planetary gear train is reduced to the size of very little.And for the axial float of restrictions planetary gear, relatively conventional mode is to adopt
Planetary gear is fastened and limited with the more compact soket head cap screw of size or bolt cooperation spacing shim and thrust ring
Position.Wherein thrust ring is annular in shape, is co-axially mounted with planetary gear revolution center.Under such frame mode, with
Planetary gear constantly rotary work, the axial force and radial force generated under various working conditions can make fixed screw or
Bolt looseness even falls off, and then makes to collide between transmission parts, rub, and causes the damage and destruction of transmission parts, thus
The normal operation of planetary gear mechanism is influenced, eventually carrys out some potential safety problems to product work belt；Additionally, due to thrust
Ring simultaneously limits all planetary gears, and thrust ring and each planetary wheel carrier support shaft, axle sleeve and thrust washer size are closed
Connection property, therefore part process manufacture requires high, assembling and setting complexity.
Utility model content
The technical problems to be solved in the utility model is that existing planetary gear axial direction position limiting structure part process manufacture requires
High, assembling and setting complexity disadvantage, and a kind of part process manufacture is provided and requires high, the simple planetary gear axial direction of assembling and setting
Position limiting structure.
The utility model is to realize that the technical solution of its purpose is such that construct a kind of planetary gear axial direction limit knot
Structure is rotatably installed in the planetary gear in each planetary gear shaft including planetary wheel carrier, multiple planetary gear shafts, by bearing,
One end of the planetary gear shaft and planetary wheel carrier connect into overall structure, it is characterised in that the other end of each planetary gear shaft
It is fixedly installed with the limit assembly for being limited to the planetary gear, the limit assembly of each planetary gear shaft end is mutual
Independent, each limit assembly is fixedly mounted on the end face of corresponding planetary gear shaft by least one threaded fastener, and every
Anti-rotation pin is provided between a limit assembly and corresponding planetary gear shaft.
Further, in above-mentioned planetary gear axial direction position limiting structure, the limit assembly includes being fixed on planetary gear shaft
Round thrust ring and the annular gasket between thrust ring and planetary gear, the outer diameter of the thrust ring be greater than the gasket
Internal diameter, the outer diameter of the gasket is greater than the planetary gear internal diameter.
Further, in above-mentioned planetary gear axial direction position limiting structure, side of the thrust ring towards planetary gear shaft is in
Step-like, the gasket is set at the step of the thrust ring.
Further, in above-mentioned planetary gear axial direction position limiting structure, the threaded fastener is sunk screw, the anti-rotation
Pin is straight pin.
Compared with prior art, each independent axial limit structure of planetary gear, subtracts the utility model in the utility model
Few each planetary wheel carrier support shaft, axle sleeve and thrust washer dimension relationship, relative to existing structure, part process manufacture is required
And it is at low cost.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model planetary gear axial direction position limiting structure.
Parts title and serial number in figure:
Planetary wheel carrier 1, planetary gear 2, needle roller 3, needle bearing inner ring 4, gasket 5, thrust ring 6, sunk screw 7, cylinder
Pin 8, planetary gear shaft 9.
Specific embodiment
Illustrate specific embodiment with reference to the accompanying drawing.
As shown in Figure 1, planetary gear axial direction position limiting structure includes planetary wheel carrier 1, multiple planetary gear shafts in the present embodiment
9, the planetary gear 2 in each planetary gear shaft is rotatably installed in by bearing, planetary gear shaft 9 is integrated with planetary wheel carrier 1
Structure, one end of planetary gear shaft 9 and planetary wheel carrier connect into overall structure, the fixed peace of the other end of each planetary gear shaft 9
Equipped with the limit assembly for being limited to planetary gear 2, the limit assembly of each 9 end of planetary gear shaft is mutually indepedent, often
A limit assembly is fixedly mounted on the end face of corresponding planetary gear shaft by least one threaded fastener, and each limit group
Anti-rotation pin is provided between part and corresponding planetary gear shaft.
As shown in Figure 1, limit assembly includes being fixed on the round thrust ring 6 of planetary gear shaft and being located at thrust ring 6 and go
Annular gasket 5 between star gear, the outer diameter of thrust ring 6 are greater than the internal diameter of gasket 5, and the outer diameter of gasket 5 is greater than planetary gear 2
Internal diameter.In step-like, gasket 5 is set at the step of thrust ring for side of the thrust ring 6 towards planetary gear shaft 9.
In the present embodiment, threaded fastener is sunk screw 7, and anti-rotation pin is straight pin 8, in each planetary gear shaft
The sunk screw 7 of installation and the quantity of straight pin 8 are not limited to one, can be multiple, the axis of sunk screw 7 and straight pin 8
Line is parallel to each other.Planetary gear 2 is mounted in planetary gear shaft by the needle bearing being made of needle roller and needle bearing inner ring.
Compared with prior art, each independent axial limit structure of planetary gear, subtracts the utility model in the utility model
Few each planetary wheel carrier support shaft, axle sleeve and thrust washer dimension relationship, relative to existing structure, part process manufacture is required
And it is at low cost.
Claims (5)
1. a kind of planetary gear axial direction position limiting structure, including planetary wheel carrier, multiple planetary gear shafts, it is rotatably installed in by bearing
Planetary gear in each planetary gear shaft, one end of the planetary gear shaft and planetary wheel carrier connect into overall structure, special
Sign is that the other end of each planetary gear shaft is fixedly installed with the limit assembly for being limited to the planetary gear, respectively
The limit assembly of planetary gear shaft end is mutually indepedent, and each limit assembly is fixedly mounted on by least one threaded fastener
On the end face of corresponding planetary gear shaft, and anti-rotation pin is provided between each limit assembly and corresponding planetary gear shaft.
2. planetary gear axial direction position limiting structure according to claim 1, it is characterised in that the limit assembly includes fixing
In the round thrust ring of planetary gear shaft and the annular gasket between thrust ring and planetary gear, the outer diameter of the thrust ring
Greater than the internal diameter of the gasket, the outer diameter of the gasket is greater than the planetary gear internal diameter.
3. planetary gear axial direction position limiting structure according to claim 2, it is characterised in that the thrust ring is towards planet tooth
In step-like, the gasket is set at the step of the thrust ring for the side of wheel shaft.
4. planetary gear axial direction position limiting structure according to any one of claim 1 to 3, it is characterised in that the screw thread is tight
Firmware is sunk screw.
5. planetary gear axial direction position limiting structure according to any one of claim 1 to 3, it is characterised in that the stop pin
Nail is straight pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821310787.1U CN208686934U (en) | 2018-08-15 | 2018-08-15 | Planetary gear axial direction position limiting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821310787.1U CN208686934U (en) | 2018-08-15 | 2018-08-15 | Planetary gear axial direction position limiting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208686934U true CN208686934U (en) | 2019-04-02 |
Family
ID=65885118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821310787.1U Active CN208686934U (en) | 2018-08-15 | 2018-08-15 | Planetary gear axial direction position limiting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208686934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614608A (en) * | 2019-10-23 | 2019-12-27 | 无锡威孚中意齿轮有限责任公司 | Quick installation frock of speed reducer planet wheel kingpin |
-
2018
- 2018-08-15 CN CN201821310787.1U patent/CN208686934U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614608A (en) * | 2019-10-23 | 2019-12-27 | 无锡威孚中意齿轮有限责任公司 | Quick installation frock of speed reducer planet wheel kingpin |
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| GR01 | Patent grant |