Shifting fork shaft rocker arm locking structure

Abstract

The utility model discloses a shifting fork shaft rocker arm locking structure which comprises a rocker arm body, inner plates are fixedly connected to the two sides of the position, close to the bottom, of the rocker arm body, rotating grooves are formed in the inner plates, rotating plates are rotationally connected to the interiors of the rotating grooves, inner thread grooves are formed in the rotating plates, and inner thread grooves are formed in the inner thread grooves. A reinforcing rod is arranged in the center of the bottom of the rocker arm body, the two sides of the reinforcing rod penetrate into the two internal thread grooves correspondingly, and annular outer sleeve plates are arranged on the two sides of the surface of the reinforcing rod correspondingly. According to the shifting fork shaft rocker arm locking structure, a more stable locking mode is achieved through threaded connection between the reinforcing rod and the rotating plate, the locking force is enhanced through the design, the locking effect is not prone to being weakened along with time, the loosening phenomenon caused by long-time operation or impact loads is effectively avoided, and therefore the transmission precision is guaranteed, and the service life of the shifting fork shaft rocker arm locking structure is prolonged. And the occurrence of mechanical faults is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of locking structures, in particular to a shift fork shaft rocker arm locking structure. Background Art

[0002] In mechanical transmission systems, the shift fork shaft rocker arm is a key component. Its stability and reliability are directly related to the performance and life of the entire mechanical device. Especially under high-load and high-frequency operating conditions, the locking structure of the shift fork shaft rocker arm is particularly important.

[0003] In traditional designs, the locking between the rocker arm and the fork shaft mostly relies on simple bolt tightening or pin positioning. This design is prone to the locking force gradually weakening or even loosening when running for a long time or subjected to impact loads, resulting in a decrease in transmission accuracy and even mechanical failure. Faced with different working conditions and load changes, traditional locking structures often lack flexible adjustment mechanisms, making it difficult to adjust the locking force according to actual needs, thereby limiting their adaptability and reliability. In addition, once the locking structure fails, the replacement or repair process is complicated and time-consuming, affecting production efficiency. Utility Model Content

[0004] The purpose of the present utility model is to provide a fork shaft rocker arm locking structure to solve the problem proposed in the above background technology that in the traditional design, the locking between the rocker arm and the fork shaft mostly relies on simple bolt tightening or pin positioning. When this design is running for a long time or subjected to impact loads, the locking force is prone to gradually weakening or even loosening, resulting in a decrease in transmission accuracy and even mechanical failure. Faced with different working conditions and load changes, the traditional locking structure often lacks a flexible adjustment mechanism, and it is difficult to adjust the locking force according to actual needs, thereby limiting its adaptability and reliability. In addition, once the locking structure fails, the replacement or repair process is complicated and time-consuming, affecting production efficiency.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solution: a shift fork shaft rocker arm locking structure, comprising a rocker arm body, wherein both sides of the rocker arm body near the bottom are fixedly connected to an inner plate, a rotation groove is formed inside the inner plate, a rotation plate is rotatably connected inside the rotation groove, an internal thread groove is formed inside the rotation plate, a reinforcement rod is provided at the center of the bottom of the rocker arm body, both sides of the reinforcement rod respectively penetrate into the interior of the two internal thread grooves, an annular outer plate is provided on both sides of the surface of the reinforcement rod, an external thread groove is formed on the outer side of the annular outer plate, the external thread groove is threadedly connected to the internal thread groove, a groove is formed at the center of both sides of the reinforcement rod, a support block is provided inside the groove, a positioning rod is fixedly connected to the center of one side of the support block, a side of the positioning rod away from the support block is rotatably connected to a side in the internal thread groove, a movable groove is formed at the top and bottom of the support block, a movable limit block is slidably connected to the inside of the movable groove, a sliding groove is formed at the top and bottom of the interior of the reinforcement rod corresponding to the groove, and a plurality of arc-shaped limit grooves are formed on the side of the interior of the reinforcement rod corresponding to the opposite sides of the two sliding grooves.

[0006] Compared with the prior art, the beneficial effects of the present invention are:

[0007] The fork shaft rocker arm locking structure achieves a more stable locking method by adopting a threaded connection between the reinforcing rod and the rotating plate. This design not only enhances the locking force, but also makes the locking effect less likely to weaken over time, effectively avoiding loosening caused by long-term operation or impact load, thereby ensuring transmission accuracy and reducing the occurrence of mechanical failures. The rotating plate is connected to the external operation through the rotating rod and knob, allowing the user to easily adjust the position of the rotating plate in the rotating groove according to different working conditions and load changes, and then adjust the locking force. This design provides a flexible adjustment mechanism, significantly improves the adaptability and reliability of the locking structure, and meets diverse usage needs. The utility model realizes the locking function while maintaining the compactness and simplicity of the structure through ingenious structural design, such as the mutual cooperation of components such as the reinforcing rod, the annular outer plate and the movable limit block. This not only reduces the manufacturing cost, but also makes the replacement or repair process simple and quick, improves production efficiency, and reduces maintenance costs. The clamping design between the movable limit block and the arc-shaped limit groove, and the supporting effect of the rebound spring on the movable limit block effectively reduce the direct friction between components and extend the service life. At the same time, the connection between the fixing groove and the fixing block between the annular outer plate and the reinforcing rod also enhances the overall stability of the structure and reduces wear caused by vibration or impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the structure of the utility model;

[0009] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0010] Figure 3 For this utility model Figure 2 A partial enlarged schematic diagram;

[0011] Figure 4 For this utility model Figure 2 A partial enlarged schematic diagram of B in the figure.

[0012] In the figure: 1. Rocker arm body; 2. Inner plate; 3. Rotating groove; 4. Rotating plate; 5. Rotating rod; 6. Internal thread groove; 7. Reinforcement rod; 8. Knob; 9. Groove; 10. Slide groove; 11. Fixed groove; 12. Fixed block; 13. Annular outer plate; 14. External thread groove; 15. Positioning rod; 16. Support block; 17. Arc limit groove; 18. Limit telescopic rod; 19. Movable groove; 20. Movable limit block; 21. Support groove; 22. Support rod; 23. Rebound spring. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] See also Figure 1-4 The utility model provides a technical solution: a fork shaft rocker arm locking structure, including a rocker arm body 1, the rocker arm body 1 is fixedly connected to an inner plate 2 on both sides of the bottom position, the inner plate 2 is provided with a rotating groove 3, the rotating groove 3 is rotatably connected to a rotating plate 4, the rotating plate 4 is provided with an internal thread groove 6, the center of the bottom of the rocker arm body 1 is provided with a reinforcing rod 7, the two sides of the reinforcing rod 7 respectively penetrate into the two internal thread grooves 6, the two sides of the surface of the reinforcing rod 7 are provided with an annular outer plate 13, the outer side of the annular outer plate 13 is provided with an external thread groove 14, the external thread groove 14 and the internal thread groove 6 are connected. The groove 6 is threadedly connected, and grooves 9 are provided in the centers of both sides of the reinforcing rod 7. A support block 16 is provided inside the groove 9. A positioning rod 15 is fixedly connected to the center of one side of the support block 16. The side of the positioning rod 15 away from the support block 16 is rotatably connected to one side of the internal thread groove 6. A movable groove 19 is provided at the top and bottom of the support block 16. A movable limit block 20 is slidably connected inside the movable groove 19. A slide groove 10 is provided at the top and bottom of the groove 9 corresponding to the interior of the reinforcing rod 7, and a number of arc-shaped limit grooves 17 are provided on the side opposite to the two slide grooves 10 inside the reinforcing rod 7.

[0015] The reinforcing rod 7 is sleeved and slidably connected to the rocker arm body 1 , and the two rotating plates 4 are fixedly connected to the rotating rod 5 on the opposite sides. The rotating rod 5 extends to the outside of the inner plate 2 away from the rotating plate 4 and is fixedly connected to the knob 8 .

[0016] Fixing grooves 11 are provided on both sides of the surface of the reinforcing rod 7 , and a fixing block 12 is fixedly connected to the inner wall of the annular outer sleeve plate 13 . The inner side of the fixing block 12 passes through the interior of the fixing groove 11 and is fixedly connected to the fixing groove 11 .

[0017] A support groove 21 is provided in the center of the opposite side of the two movable limit blocks 20, and a support rod 22 is fixedly connected to the opposite side of the two movable grooves 19. The opposite sides of the two support rods 22 respectively penetrate into the interior of the two support grooves 21 and are slidably connected to the support grooves 21.

[0018] A rebound spring 23 is sleeved on the surface of the support rod 22 , and the top and bottom of the rebound spring 23 are fixedly connected to the movable limit block 20 and the inner wall of the movable groove 19 respectively.

[0019] The center of the other side of the support block 16 is fixedly connected to a limiting telescopic rod 18 , and one side of the limiting telescopic rod 18 is fixedly connected to the inner wall of the groove 9 .

[0020] The opposite sides of the upper and lower movable limiting blocks 20 respectively penetrate into the interiors of the two arc-shaped limiting grooves 17 and are engaged with the arc-shaped limiting grooves 17 .

[0021] Working principle: The user rotates the knob 8 to drive the rotating rod 5 and the connected rotating plate 4 to rotate in the rotating groove 3. Since the internal thread groove 6 inside the rotating plate 4 cooperates with the external thread groove 14 of the annular outer sleeve plate 13 on the reinforcing rod 7, the rotation action causes a threaded connection between the two, thereby pushing the reinforcing rod 7 to slide left and right relative to the rocker arm body 1. As the reinforcing rod 7 slides, the support block 16 and the movable limit block 20 inside it also move accordingly. The movable limit block 20 slides in the support groove 21 under the guidance of the support rod 22, and at the same time is subjected to the elastic force of the rebound spring 23 to maintain the search and approach to the arc-shaped limit groove 17. When the reinforcing rod 7 slides to the appropriate position, the movable limit block 20, pushed by the rebound spring 23, just enters the corresponding The arc-shaped limit groove 17 is engaged and clamped to achieve the fixation of the locking state. At this time, due to the close fit between the external thread groove 14 and the internal thread groove 6, and the clamping of the movable limit block 20 and the arc-shaped limit groove 17, the stability and reliability of the locking structure are ensured. In the locked state, the relative position between the reinforcing rod 7 and the rocker arm body 1 is fixed, and the rotation of the rotating plate 4 is also limited within a certain range, thereby ensuring the overall stability and transmission accuracy of the fork shaft rocker arm. The clamping of the movable limit block 20 and the arc-shaped limit groove 17 provides additional locking force to prevent loosening caused by vibration or impact. At the same time, the continuous elastic force of the rebound spring 23 ensures the close contact between the movable limit block 20 and the arc-shaped limit groove 17, thereby enhancing the durability of the locking effect.

[0022] In summary: the fork shaft rocker arm locking structure realizes a more stable locking method by adopting a threaded connection between the reinforcing rod 7 and the rotating plate 4. This design not only enhances the locking force, but also makes the locking effect less likely to weaken over time, effectively avoiding loosening caused by long-term operation or impact load, thereby ensuring transmission accuracy and reducing the occurrence of mechanical failures. The rotating plate 4 is connected to the external operation through the rotating rod 5 and the knob 8, so that the user can easily adjust the position of the rotating plate 4 in the rotating groove 3 according to different working conditions and load changes, and then adjust the locking force. This design provides a flexible adjustment mechanism, significantly improves the adaptability and reliability of the locking structure, and meets diverse usage needs. The model realizes the locking function while maintaining the compactness and simplicity of the structure through ingenious structural design, such as the mutual cooperation of components such as the reinforcing rod 7, the annular outer plate 13 and the movable limit block 20. This not only reduces the manufacturing cost, but also makes the replacement or repair process simple and quick, improves production efficiency, and reduces maintenance costs. The clamping design between the movable limit block 20 and the arc-shaped limit groove 17, and the supporting effect of the rebound spring 23 on the movable limit block 20 effectively reduce the direct friction between components and extend the service life. At the same time, the connection between the fixing groove 11 and the fixing block 12 between the annular outer plate 13 and the reinforcing rod 7 also enhances the overall stability of the structure and reduces wear caused by vibration or impact.

[0023] It should be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0024] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A fork shaft rocker arm locking structure, comprising a rocker arm body (1), characterized in that: The rocker arm body (1) is fixedly connected to an inner plate (2) on both sides near the bottom, a rotation groove (3) is provided inside the inner plate (2), a rotation plate (4) is rotatably connected inside the rotation groove (3), an internal thread groove (6) is provided inside the rotation plate (4), a reinforcing rod (7) is provided at the center of the bottom of the rocker arm body (1), both sides of the reinforcing rod (7) respectively penetrate into the interior of the two internal thread grooves (6), an annular outer plate (13) is provided on both sides of the surface of the reinforcing rod (7), an external thread groove (14) is provided on the outer side of the annular outer plate (13), the external thread groove (14) is threadedly connected to the internal thread groove (6), and the reinforcing rod (7) is provided on both sides. A groove (9) is provided at the center of each side, a support block (16) is provided inside the groove (9), a positioning rod (15) is fixedly connected to the center of one side of the support block (16), the side of the positioning rod (15) away from the support block (16) is rotatably connected to one side of the internal thread groove (6), a movable groove (19) is provided at the top and bottom of the support block (16), a movable limit block (20) is slidably connected inside the movable groove (19), a sliding groove (10) is provided at the top and bottom of the corresponding groove (9) inside the reinforcing rod (7), and a plurality of arc-shaped limit grooves (17) are provided on the opposite side of the two sliding grooves (10) inside the reinforcing rod (7).

2. The shift fork shaft rocker arm locking structure according to claim 1, characterized in that: The reinforcing rod (7) is sleeved and slidably connected to the rocker arm body (1); the two rotating plates (4) are fixedly connected to rotating rods (5) on opposite sides thereof; the rotating rods (5) extend through the outside of the inner plate (2) on the side away from the rotating plates (4) and are fixedly connected to a knob (8).

3. The shift fork shaft rocker arm locking structure according to claim 1, characterized in that: Both sides of the surface of the reinforcing rod (7) are provided with fixing grooves (11), the inner wall of the annular outer sleeve (13) is fixedly connected with a fixing block (12), and the inner side of the fixing block (12) passes through the interior of the fixing groove (11) and is fixedly connected to the fixing groove (11).

4. The shift fork shaft rocker arm locking structure according to claim 1, characterized in that: A support groove (21) is provided at the center of the opposite side of the two movable limit blocks (20), and a support rod (22) is fixedly connected to the opposite side of the two movable grooves (19). The opposite sides of the two support rods (22) respectively penetrate into the interior of the two support grooves (21) and are slidably connected to the support grooves (21).

5. The shift fork shaft rocker arm locking structure according to claim 4, characterized in that: A rebound spring (23) is sleeved on the surface of the support rod (22), and the top and bottom of the rebound spring (23) are fixedly connected to the movable limit block (20) and the inner wall of the movable groove (19) respectively.

6. The shift fork shaft rocker arm locking structure according to claim 1, characterized in that: A limiting telescopic rod (18) is fixedly connected to the center of the other side of the support block (16), and one side of the limiting telescopic rod (18) is fixedly connected to the inner wall of the groove (9).

7. The shift fork shaft rocker arm locking structure according to claim 1, characterized in that: The opposite sides of the upper and lower movable limiting blocks (20) respectively penetrate into the interiors of the two arc-shaped limiting grooves (17) and are engaged with the arc-shaped limiting grooves (17).

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