CN202834035U - Self-locking mechanism of speed changer - Google Patents
Self-locking mechanism of speed changer Download PDFInfo
- Publication number
- CN202834035U CN202834035U CN 201220499042 CN201220499042U CN202834035U CN 202834035 U CN202834035 U CN 202834035U CN 201220499042 CN201220499042 CN 201220499042 CN 201220499042 U CN201220499042 U CN 201220499042U CN 202834035 U CN202834035 U CN 202834035U
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- CN
- China
- Prior art keywords
- speed changer
- spring
- groove
- spring seat
- steel ball
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- Expired - Lifetime
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Abstract
The utility model provides a self-locking mechanism of a speed changer. The self-locking mechanism of the speed changer comprises a screw plug, a spring, a spring seat, a steel ball and a shifting fork shaft. A plurality of grooves are arranged on the shifting fork shaft, the steel ball is arranged in one groove of the shifting fork shaft, a round-platform-shaped groove is arranged at one end of the spring seat, a cylindrical groove is arranged at the other end of the spring seat, and the round-platform-shaped groove of the spring seat is arranged on the steel ball. One end of the spring is pressed in the cylindrical groove of the spring seat, and the other end of the spring abuts against a groove of the screw plug. The screw plug is locked in a shell body of the speed changer, or the upper end of the speed changer, or a shell body of a manipulating mechanism of the speed changer in a screwed mode. In the process of gear shifting, the self-locking mechanism of the speed changer needs to achieve the aims that resistance of gear shifting is small, hand feeling of gear shifting is good, and gear shifting is smooth and does not have impact. Changing of the spring and dismantling of the whole mechanism are quite convenient.
Description
[technical field]
The utility model relates to the automotive transmission technical field, particularly a kind of speed changer self-locking mechanism.
[background technique]
Speed changer must guarantee that the gear teeth mesh with widths over teeth when engage a gear, and prevent automatically out of supply, otherwise, not only affect the life-span of gear, even can cause very large potential safety hazard.Therefore in speed changer, need to arrange self-locking mechanism.At present, the self-locking mechanism for shifting of transmission mainly contains two kinds of forms.A kind of is the structure that the groove by spring 20, steel ball 30 and declutch shift shaft 40 as shown in Figure 1 forms, because steel ball 30 slides at spring end face, surface friction drag is larger, thereby berth-changing strength is just large, and the gear shift feel is not good; This structure need be installed on loam cake or the housing 50 in addition, and has above operating mechanism 10 is pressed in, for replacing or the extremely inconvenience of dismounting of spring.Another kind be as shown in Figure 2 with spring, spring seat and steel ball punching press all-in-one-piece integral type self-locking structure 60, spring is non-exchange, and this structure and housing be interference fit, has non-dismountable property.
[model utility content]
The purpose of this utility model provides a kind of speed changer self-locking mechanism, reducing berth-changing strength, and guarantees that the dismounting of the replacing of spring and whole mechanism is very convenient.
To achieve these goals, the utility model adopts following technological scheme:
A kind of speed changer self-locking mechanism comprises plug screw, spring, spring seat, steel ball and declutch shift shaft; Declutch shift shaft is provided with some grooves, and steel ball is positioned at a groove of declutch shift shaft; Spring seat one end is provided with a frustoconic shape groove, and the other end is provided with a cylinder shape groove; The frustoconic shape groove of spring seat is installed on the steel ball; Spring one side pressure is in the cylinder shape groove of spring seat, and the other end withstands in the groove of plug screw, and the plug screw screw lock is on the operating mechanism housing of case of transmission, transmission upper cover or speed changer.
The utility model further improves and is: steel ball cooperates with the frustoconic shape groove of spring seat and the groove rolling of declutch shift shaft.
With respect to prior art, the utlity model has following advantage: the utility model speed changer self-locking mechanism is when gear shift, and the gear shift resistance that need to overcome is little, and the gear shift feel is good, and gear shift is smooth-going not to be impacted; Spring one side pressure is in the cylinder shape groove of spring seat, and the other end withstands in the groove of plug screw, and the plug screw screw lock guarantees that the dismounting of the replacing of spring and whole mechanism is very convenient on case of transmission.
[description of drawings]
Fig. 1 is the schematic diagram of existing a kind of speed changer self-locking mechanism;
Fig. 2 is the schematic diagram of existing another kind of speed changer self-locking structure;
Fig. 3 is structural representation of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.
As shown in Figure 3, a kind of speed changer self-locking mechanism of the utility model design comprises plug screw 1, spring 2, spring seat 3, steel ball 4 and declutch shift shaft 5 and case of transmission 6(or is the operating mechanism housing of transmission upper cover or speed changer).One end of spring seat 3 is provided with a frustoconic shape groove, and the other end is provided with a cylinder shape groove; Steel ball 4 is placed in the groove of declutch shift shaft 5, spring seat 3 is installed on the steel ball 4, and steel ball 4 is positioned at the frustoconic shape groove of spring seat 3 and the groove of declutch shift shaft 5; Steel ball 4 is Free-rolling in the groove of spring seat 3 and declutch shift shaft 5, and when gear shift, the gear shift resistance that need to overcome is little like this, and the gear shift feel is good, the gear shift pause and transition in rhythm or melody sense before not having; Simultaneously with spring 2 one side pressures in the cylinder shape groove of spring seat 3, one end withstands in the groove of plug screw 1, by tightening plug screw 1 this mechanism is fixed on case of transmission 6(or is the operating mechanism housing of transmission upper cover or speed changer at last) on, guarantee that the dismounting of the replacing of spring and whole mechanism is very convenient.
As shown in Figure 3, speed changer is when gear shift, and gearshift mechanism drive declutch shift shaft 5 overcomes the resistance between steel ball 4 and the declutch shift shaft groove, and Compress Spring 2 makes steel ball 4 roll out obliquely the declutch shift shaft groove and enters another declutch shift shaft groove, and gearshift procedure finishes.In this process, steel ball 4 is positioned at the frustoconic shape groove of spring seat 3 and the groove of declutch shift shaft 5, guarantees steel ball 4 Free-rolling in the groove of spring seat 3 and declutch shift shaft 5, like this when gear shift, the gear shift resistance that need to overcome is just little, and the gear shift feel is good, and gear shift is smooth-going not to be impacted.After gear shift is finished, owing to steel ball 4 remains in the groove of sliding selector shaft 5, under the effect of spring force, can be not out of supply.
Claims (2)
1. a speed changer self-locking mechanism is characterized in that, comprises plug screw (1), spring (2), spring seat (3), steel ball (4) and declutch shift shaft (5); Declutch shift shaft (5) is provided with some grooves, and steel ball (4) is positioned at a groove of declutch shift shaft (5); Spring seat (3) one ends are provided with a frustoconic shape groove, and the other end is provided with a cylinder shape groove; The frustoconic shape groove of spring seat (3) is installed on the steel ball (4); Spring (2) one side pressures are in the cylinder shape groove of spring seat (3), and the other end withstands in the groove of plug screw (1), and plug screw (1) screw lock is on the operating mechanism housing of case of transmission (6), transmission upper cover or speed changer.
2. a kind of speed changer self-locking mechanism according to claim 1 is characterized in that, steel ball (4) cooperates with the frustoconic shape groove of spring seat (3) and the groove rolling of declutch shift shaft (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220499042 CN202834035U (en) | 2012-09-27 | 2012-09-27 | Self-locking mechanism of speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220499042 CN202834035U (en) | 2012-09-27 | 2012-09-27 | Self-locking mechanism of speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202834035U true CN202834035U (en) | 2013-03-27 |
Family
ID=47945744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220499042 Expired - Lifetime CN202834035U (en) | 2012-09-27 | 2012-09-27 | Self-locking mechanism of speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202834035U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812930A (en) * | 2017-04-14 | 2017-06-09 | 重庆青山工业有限责任公司 | A kind of manual transmission gear level retaining mechanism |
| CN107882977A (en) * | 2017-12-01 | 2018-04-06 | 重庆越博传动系统有限公司 | A kind of pure electric automobile six keeps off gearbox shifting shifting fork mechanism |
| CN109237018A (en) * | 2018-09-25 | 2019-01-18 | 陕西法士特齿轮有限责任公司 | A kind of speed changer self-locking structure |
-
2012
- 2012-09-27 CN CN 201220499042 patent/CN202834035U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812930A (en) * | 2017-04-14 | 2017-06-09 | 重庆青山工业有限责任公司 | A kind of manual transmission gear level retaining mechanism |
| CN107882977A (en) * | 2017-12-01 | 2018-04-06 | 重庆越博传动系统有限公司 | A kind of pure electric automobile six keeps off gearbox shifting shifting fork mechanism |
| CN109237018A (en) * | 2018-09-25 | 2019-01-18 | 陕西法士特齿轮有限责任公司 | A kind of speed changer self-locking structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: BAOJI FAST GEAR Co.,Ltd. Assignor: SHAANXI FAST GEAR Co.,Ltd. Contract record no.: 2014610000073 Denomination of utility model: Self-locking mechanism of speed changer Granted publication date: 20130327 License type: Exclusive License Record date: 20140423 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |