Gear disorder prevention latch structure for transmission
By introducing a double limit structure in the transmission, the problem of accidental gear switching caused by single locking wear is solved, higher locking reliability and gear shifting convenience are achieved, and driving safety and comfort are improved.
Patent Information
- Application Number
- CN202422572662.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-24
AI Technical Summary
Most of the existing transmission anti-shift gear structures have only single locking, which is prone to wear or deformation after long-term use, resulting in accidental gear switching and reducing driving safety.
A double limit structure is adopted, including a mechanical locking design of a ball and a limit block. Through the cooperation of the spring and the limit block, a double limit fixation is formed to prevent accidental movement of the gear selector shaft.
It improves the reliability of locking, ensures that the transmission is always in the correct gear, is easy to operate and does not increase shifting resistance, thus improving the safety and comfort of the driving process.
Smart Images
Figure CN223318421U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-shifting of transmissions, in particular to an anti-shifting gear structure for transmissions. Background Art
[0002] The anti-gear disorderly gear structure for the transmission is a special mechanical structure that prevents gear confusion in the transmission. During vehicle driving, it can effectively prevent the driver from shifting into the wrong gear due to misoperation, avoid damage to the transmission and vehicle drive system, reduce safety risks such as vehicle loss of control, accidental acceleration or deceleration due to gear confusion, and provide a safer driving environment for the driver and passengers. At present, most common anti-gear disorderly gear structures have only single locking. During long-term use, once this unique locking structure is worn, deformed or malfunctions, it is easy to lose the anti-gear disorder function. Especially when driving on rugged roads, the vibration of the vehicle may loosen the single locking structure, resulting in accidental gear switching, which reduces safety during driving. Utility Model Content
[0003] (1) Technical problems solved
[0004] In response to the shortcomings of the existing technology, the utility model provides an anti-shift gear structure for a transmission, which solves the problem that most common anti-shift gear structures have only single locking. During long-term use, once this single locking structure is worn, deformed or fails, it is easy to lose the anti-shift function.
[0005] (2) Technical solution
[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a transmission anti-shift gear structure, including a gear selection shaft, the gear selection shaft annular side surface is fixedly connected to a connecting frame, the connecting frame side surface is fixedly connected to two pins, a connecting ring is provided in the front of the gear selection shaft, the rear surface of the connecting ring is provided with a circular groove 1, a push block 1 is movably sleeved in the circular groove 1, the front surface of the push block 1 is fixedly connected to a disc, the front surface of the disc is fixedly connected to a ball, a circular shaft is movably sleeved in the fixing ring 1, the circular shaft and the annular side surface of the disc are fixedly connected to two connecting rods, the front surface of the connecting ring is fixedly connected to a fixing ring 1, a lower surface of the fixing ring is fixedly connected to a fixing ring 2, a limiting block is movably sleeved in the fixing ring 2, the front surface of the push block 1 is fixedly connected to a spring 2, and the spring 2 is fixedly connected to the circular groove 1.
[0007] As a preferred technical solution of the present invention, an annular groove is formed through the front surface of the connecting frame, and the annular groove is movably engaged with the ball.
[0008] As a preferred technical solution of the present invention, a spring 1 is fixedly connected to the lower surface of the limit block, and the spring 1 is fixedly connected to a fixing ring 2.
[0009] As an optimal technical solution of the present invention, a push block 2 is movably engaged in the fixing ring 1, a round rod is fixedly connected to the front surface of the push block 2, and the push block 2 is movably engaged with the limit block.
[0010] As an optimal technical solution of the present invention, two grooves are provided on the annular side of the fixing ring 1, and the two grooves are movably engaged with the circular shaft. The inner wall of the circular shaft is fixedly connected to the limiting ring, and the fixing ring 1 and the annular side of the circular shaft are both provided with circular groove 2, and the two circular grooves 2 are movably engaged with the limit block.
[0011] (3) Beneficial effects
[0012] 1. Two connecting rods are fixed on the surface of the disc. The two connecting rods will drive the circular shaft to move. The circular shaft is movably sleeved in the fixed ring 1. During the movement, the circular groove 2 opened on it will be engaged with the limit block. The limit block limits the circular shaft through the elastic force of spring 1. At this time, a double limit fixation is formed by spring 2 and the limit block. The limit block assists the ball to further limit the position, preventing the gear selector shaft from moving accidentally, ensuring that the transmission is always in the correct gear, and greatly improving the reliability of locking.
[0013] 2. During the movement, the push block 2 will squeeze the limit block so that it is completely engaged in the fixed ring 2, compressing the spring 1. During the movement, the push block 2 will fit with the limit ring and drive the round shaft to move together. During the movement of the round shaft, it will drive the ball to move, compressing the spring 2, opening the lock, and the transmission can shift normally. The overall operation is simple, the reliability is high, and there is no increase in shifting resistance. The shifting is easy, ensuring the safety and comfort of the driving process. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.
[0015] Figure 1 This is the overall structural diagram of the utility model;
[0016] Figure 2 This is the structural diagram of the gear selector shaft in the present utility model;
[0017] Figure 3 This is a structural diagram of the connecting ring in the utility model;
[0018] Figure 4 This is a structural diagram of the fixed ring in this utility model.
[0019] Legend: 1. Shift select shaft; 2. Connecting frame; 3. Latch; 4. Connecting ring; 5. Fixed ring 1; 6. Annular groove; 7. Circular groove 1; 8. Connecting rod; 9. Push block 1; 10. Disc; 11. Ball; 12. Circular shaft; 13. Fixed ring 2; 14. Slot; 15. Limiting ring; 16. Push block 2; 17. Circular rod; 18. Spring 1; 19. Spring 2; 20. Limiting block; 21. Circular groove 2. DETAILED DESCRIPTION
[0020] The embodiment of the present application provides an anti-shift gear structure for a transmission, which effectively solves the problem that most common anti-shift gear structures have only single locking. During long-term use, once this single locking structure is worn, deformed or malfunctions, it is easy to lose the anti-shift function. Especially when driving on rough roads, the vibration of the vehicle may loosen the single locking structure, resulting in accidental gear switching, which reduces safety during driving.
[0021] Example
[0022] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the overall idea of the embodiment of this application is as follows:
[0023] In view of the problems existing in the prior art, the utility model provides an anti-shifting gear structure for a transmission, comprising a gear selection shaft 1, a connecting frame 2 fixedly connected to the annular side surface of the gear selection shaft 1, two latches 3 fixedly connected to the side surface of the connecting frame 2, a connecting ring 4 is provided in front of the gear selection shaft 1, a circular groove 7 is provided on the rear surface of the connecting ring 4, a push block 9 is movably sleeved in the circular groove 7, a disc 10 is fixedly connected to the front surface of the push block 9, a ball 11 is fixedly connected to the front surface of the disc 10, a circular shaft 12 is movably sleeved in the fixing ring 5, two connecting rods 8 are fixedly connected to the annular side surface of the circular shaft 12 and the disc 10, a fixing ring 5 is fixedly connected to the front surface of the fixing ring 5, a fixing ring 2 13 is fixedly connected to the lower surface of the fixing ring 5, a limiting block 20 is movably sleeved in the fixing ring 2 13, a spring 2 19 is fixedly connected to the front surface of the push block 9, and the spring 2 19 is fixedly connected to the circular groove 7. When the transmission is engaged After reaching a specific gear position, under the action of spring 2 19, the ball 11 is pushed into the annular groove 6 provided on the gear selection shaft 1. At this time, the cooperation between the ball 11 and the annular groove 6 forms a mechanical lock, which limits the connecting frame 2 and prevents it from rotating. During the movement, the ball 11 will drive the disc 10 to move together. Two connecting rods 8 are fixed on the surface of the disc 10. The two connecting rods 8 will drive the circular shaft 12 to move. The circular shaft 12 is movably sleeved in the fixed ring 1 5. During the movement, the circular groove 21 provided thereon will be engaged with the limit block 20. The limit block 20 limits the circular shaft 12 by the elastic force of spring 18. At this time, a double limit fixation is formed by spring 2 19 and the limit block 20. The limit block 20 assists the ball 11 to further limit it, preventing the gear selection shaft 1 from moving accidentally, ensuring that the transmission is always in the correct gear position, and greatly improving the reliability of the locking.
[0024] An annular groove 6 is provided through the front surface of the connecting frame 2, which is movably engaged with the ball 11. A spring 18 is fixedly connected to the lower surface of the limit block 20, and the spring 18 is fixedly connected to the fixed ring 2 13. The driver transmits the gear selection instruction to the gear selection mechanism by operating an external device such as a shift lever. When shifting gears, the external connecting rod will drive the round rod 17 to move, and the round rod 17 will drive the push block 2 16 fixed to it to move during the movement. The push block 2 16 will squeeze the limit block 20 during the movement, so that it is completely engaged in the fixed ring 2 13, compressing the spring 18. The push block 2 16 will fit with the limit ring 15 during the movement and drive the round shaft 12 to move together.
[0025] A push block 2 16 is movably connected to the fixed ring 15, and a round rod 17 is fixedly connected to the front surface of the push block 2 16. The push block 2 16 is movably connected to the limit block 20. Two grooves 14 are provided on the annular side of the fixed ring 15. The two grooves 14 are movably connected to the circular shaft 12. The inner wall of the circular shaft 12 is fixedly connected to the limit ring 15. A circular groove 21 is provided on the annular side of the fixed ring 15 and the circular shaft 12. The two circular grooves 21 are movably connected to the limit block 20. During the movement of the circular shaft 12, the ball 11 will be driven to move, the spring 2 19 is compressed, the lock is opened, and the transmission can shift normally. The overall operation is simple and reliable, and the shifting resistance is high. The gear shifting is easy, ensuring the safety and comfort of the driving process.
[0026] Working principle:
[0027] When the transmission is engaged in a specific gear, the ball 11 is pushed into the annular groove 6 provided on the gear selection shaft 1 under the action of the spring 2 19. At this time, the cooperation between the ball 11 and the annular groove 6 forms a mechanical lock, which limits the connecting frame 2 and prevents it from rotating. The ball 11 will drive the disc 10 to move together during the movement. Two connecting rods 8 are fixed on the surface of the disc 10. The two connecting rods 8 will drive the circular shaft 12 to move. The circular shaft 12 is movably sleeved in the fixed ring 1 5. During the movement, the circular groove 21 provided thereon will be engaged with the limit block 20. The limit block 20 limits the circular shaft 12 by the elastic force of the spring 18. At this time, a double limit fixation is formed by the spring 2 19 and the limit block 20. The limit block 20 assists the ball 11 to further limit it, preventing the gear selection shaft 1 from moving accidentally, ensuring The transmission is always in the correct gear, which greatly improves the reliability of the lock. The driver transmits the gear selection instruction to the gear selection mechanism by operating external devices such as the gear shift lever. When shifting gears, the external connecting rod will drive the round rod 17 to move. The round rod 17 will drive the push block 2 16 fixed to it to move during the movement. The push block 2 16 will squeeze the limit block 20 during the movement, so that it is completely engaged in the fixed ring 2 13, compressing the spring 18. The push block 2 16 will fit with the limit ring 15 during the movement and drive the round shaft 12 to move together. The round shaft 12 will drive the ball 11 to move during the movement, compressing the spring 2 19, opening the lock, and the transmission can shift gears normally. The overall operation is simple and reliable, without increasing the gear shifting resistance, and the gear shifting is easy, ensuring the safety and comfort of the driving process.
[0028] Finally, it should be noted that the above embodiments are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to enumerate all embodiments here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.
Claims
1. A gear structure for preventing gear shifting for a transmission, comprising a gear selection shaft (1), characterized in that: The gear selection shaft (1) is fixedly connected to a connecting frame (2) on its annular side surface, and two latches (3) are fixedly connected to the side surface of the connecting frame (2). A connecting ring (4) is provided in front of the gear selection shaft (1), and a circular groove (7) is provided on the rear surface of the connecting ring (4). A push block (9) is movably sleeved in the circular groove (7). The front surface of the push block 1 (9) is fixedly connected to a disc (10), the front surface of the disc (10) is fixedly connected to a ball (11), the front surface of the connecting ring (4) is fixedly connected to a fixing ring 1 (5), a circular shaft (12) is movably sleeved inside the fixing ring 1 (5), the circular shaft (12) and the annular side of the disc (10) are fixedly connected to two connecting rods (8), the lower surface of the fixing ring 1 (5) is fixedly connected to a fixing ring 2 (13), and a limit block (20) is movably sleeved inside the fixing ring 2 (13).
2. The anti-shifting gear structure for a transmission according to claim 1, characterized in that: The front surface of the push block 1 (9) is fixedly connected to a spring 2 (19); Wherein, the spring 2 (19) is fixedly connected to the circular groove 1 (7).
3. The anti-shifting gear structure for a transmission according to claim 1, characterized in that: An annular groove (6) is formed through the front surface of the connecting frame (2); The annular groove (6) is movably engaged with the ball (11).
4. The anti-shifting gear structure for a transmission according to claim 1, characterized in that: A spring 1 (18) is fixedly connected to the lower surface of the limit block (20); Wherein, the spring 1 (18) is fixedly connected to the fixing ring 2 (13).
5. The anti-shifting gear structure for a transmission according to claim 1, characterized in that: The fixed ring 1 (5) is movably connected to the push block 2 (16), and the front surface of the push block 2 (16) is fixedly connected to the round rod (17); Wherein, the push block 2 (16) is movably engaged with the limit block (20).
6. The anti-shifting gear structure for a transmission according to claim 1, characterized in that: The annular side surface of the fixing ring (5) is provided with two clamping grooves (14), and the two clamping grooves (14) are movably clamped with the circular shaft (12); The inner wall of the circular shaft (12) is fixedly connected to a limiting ring (15), and the annular side surfaces of the fixing ring (5) and the circular shaft (12) are both provided with a second circular groove (21), and the two second circular grooves (21) are movably engaged with the limiting block (20).