CN210087963U - Transmission gear mechanism - Google Patents
Transmission gear mechanism Download PDFInfo
- Publication number
- CN210087963U CN210087963U CN201920861267.8U CN201920861267U CN210087963U CN 210087963 U CN210087963 U CN 210087963U CN 201920861267 U CN201920861267 U CN 201920861267U CN 210087963 U CN210087963 U CN 210087963U
- Authority
- CN
- China
- Prior art keywords
- neck
- balancing piece
- balancing
- seted
- hole
- 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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- Gears, Cams (AREA)
Abstract
The utility model provides a derailleur gear mechanism belongs to transmission machinery technical field. The central wheel shaft of the existing gear mechanism is easy to shake during operation, so that the transmission is unstable in working and high in noise during transmission. This derailleur gear, meshing portion including the integral type structure, neck and connecting portion, be provided with the teeth of a cogwheel in the meshing portion, the spline groove has been seted up to the central axial of connecting portion, radially seted up the through-hole on the neck, the outer lane of neck is provided with the balancing piece, this balancing piece cooperatees for its inner circle of split type structure and neck outer lane, the through-hole has been seted up on the terminal surface axial extension formation supporting part and the supporting part of balancing piece, and wear to establish the bolt in the through-hole and fasten two balancing pieces on the neck, the side of balancing piece is radially fixed with the. The utility model discloses an increase balancing piece and balance bar at the gear neck and make it have effective rocking when reducing its operation to rational in infrastructure low in manufacturing cost's advantage.
Description
Technical Field
The utility model belongs to the technical field of the drive machine, a derailleur is related to, in particular to derailleur gear mechanism.
Background
The speed changer is a device for changing machine running speed or traction force, the gear mechanism is used as power output component of speed changer, it mainly uses the planetary gear to share load and transfer power, the planetary gear must implement rotation and also implement revolution, in the course of said high-strength movement, the structural design of planetary gear and load distribution between the planetary gears can greatly affect vibration noise and service life of planetary gear transmission mechanism.
Disclosure of Invention
The utility model aims at providing a to the above-mentioned problem that exists among the prior art, provide one kind and can prevent effectively that the shaft skew from rocking the more stable gear mechanism of messenger's derailleur overall operation.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a derailleur gear mechanism, includes meshing portion, neck and the connecting portion of integral type structure, the meshing portion on be provided with the teeth of a cogwheel, the spline groove has been seted up to the central axial of connecting portion, its characterized in that, the neck on radially seted up the through-hole, the outer lane of neck is provided with the balancing piece, this balancing piece cooperatees for its inner circle of split type structure and neck outer lane, the terminal surface axial extension of balancing piece has seted up the through-hole on forming supporting part and the supporting part to wear to establish the bolt and fasten two balancing pieces on the neck in the through-hole, the side of balancing piece is passed through the screw and.
The technical effects of the transmission gear mechanism are as follows: this gear mechanism realizes the transmission through the meshing of planet wheel in meshing portion and the derailleur, power soaks the letter from the spline groove in the connecting portion and hub connection and can input, it is poor according to purchasing the equilibrium in whole transmission in order to improve the gear, fix the balancing piece through the mode of merging at its neck, and fix the balancing strip on the balancing piece, it makes it have great inertia operation more stable to increase the weight of gear through this improvement structure one, and this structure is adorned outward on the original basis of gear, it is lower to need not to change the original structure cost of gear, furthermore, the balancing strip on the balancing piece about it both ends face can support by on the support of derailleur, make the fixed effect of gear better.
In the above transmission gear mechanism, the upper end surface and the lower end surface of the balance bar are both smooth planar structures, and the two side surfaces of the balance bar are arc-surface structures.
In one of the transmission gear mechanisms described above, the connecting portion has a diameter larger than a diameter of the neck portion.
Compared with the prior art, the transmission gear mechanism has the advantages that the balance block and the balance strip are additionally arranged on the neck of the gear, so that the transmission gear mechanism has the advantages of effectively reducing the shaking of the transmission gear mechanism during operation, along with reasonable structure and low manufacturing cost.
Drawings
Fig. 1 is an exploded view of the structure of the transmission gear mechanism of the present invention.
In the figure, 1, an engaging portion; 2. a neck portion; 3. a connecting portion; 4. a counterbalance; 4a, a support part; 5. a bolt; 6. and (6) balancing the strip.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, this derailleur gear mechanism, meshing portion 1 including the integral type structure, neck 2 and connecting portion 3, be provided with the teeth of a cogwheel on the meshing portion 1, the spline groove has been seted up to the central axial of connecting portion 3, the through-hole has radially been seted up on the neck 2, the outer lane of neck 2 is provided with balancing piece 4, this balancing piece 4 cooperatees for its inner circle of split type structure and neck 2 outer lane, the terminal surface axial extension of balancing piece 4 forms the through-hole has been seted up on supporting part 4a and the supporting part 4a, and wear to establish bolt 5 in the through-hole and fasten two balancing pieces 4 on neck 2, balancing piece 4's side is passed through the.
In further detail, the upper end face and the lower end face of the balance bar 6 are both smooth plane structures, the two side faces of the balance bar 6 are arc-shaped surface structures, the smooth plane structures are used for reducing friction force between the smooth plane structures and a transmission support to increase transmission efficiency, and the arc-shaped surface structures are convenient for screwing and fixing screws.
Furthermore, the diameter of the connecting part 3 is larger than that of the neck part 2, so that the whole weight can be increased to enable the operation to be more stable, and the firmness of the connecting part is not influenced after the spline grooves are formed.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms of the engaging portion 1, the neck portion 2, the connecting portion 3, the weight 4, the supporting portion 4a, the bolt 5, the balance bar 6, etc. are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (3)
1. The utility model provides a derailleur gear mechanism, meshing portion (1), neck (2) and connecting portion (3) including the integral type structure, meshing portion (1) on be provided with the teeth of a cogwheel, the spline groove has been seted up to the central axial of connecting portion (3), its characterized in that, neck (2) on radially seted up the through-hole, the outer lane of neck (2) is provided with balancing piece (4), this balancing piece (4) cooperate with neck (2) outer lane for its inner circle of split type structure, the terminal surface axial extension of balancing piece (4) forms and has seted up the through-hole on supporting part (4 a) and supporting part (4 a) to wear to establish bolt (5) in the through-hole and fasten two balancing pieces (4) on neck (2), the side of balancing piece (4) is radially fixed with balancing strip (6) through the screw.
2. The transmission gear mechanism according to claim 1, wherein the upper and lower end faces of the balance bar (6) are both smooth planar structures, and the two side faces of the balance bar (6) are arc-shaped structures.
3. A transmission gear unit according to claim 1, characterised in that the diameter of the connecting portion (3) is larger than the diameter of the neck portion (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920861267.8U CN210087963U (en) | 2019-06-10 | 2019-06-10 | Transmission gear mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920861267.8U CN210087963U (en) | 2019-06-10 | 2019-06-10 | Transmission gear mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087963U true CN210087963U (en) | 2020-02-18 |
Family
ID=69482144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920861267.8U Expired - Fee Related CN210087963U (en) | 2019-06-10 | 2019-06-10 | Transmission gear mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210087963U (en) |
-
2019
- 2019-06-10 CN CN201920861267.8U patent/CN210087963U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200218 Termination date: 20210610 |