Pedal connecting mechanism suitable for automobile clutch system

Abstract

The utility model discloses a pedal connecting mechanism suitable for an automobile clutch system, which comprises a side plate. The pedal driven arm support is welded to the pedal driving arm assembly through a rotating shaft a, the first-stage switching structure is installed on the pedal driven arm support, the second-stage switching structure is rotationally connected with the first-stage connecting structure through a rotating shaft b, and a clutch switch installation support is installed on the upper half portion of the side plate. The secondary switching structure is connected with a clutch switch limiting support through a rotating shaft c, and a clutch master cylinder mounting support is mounted below the clutch switch limiting support. The clutch pedal with the booster has the advantages that the problem of space arrangement of the clutch pedal with the booster in a cab is solved, the clutch pedal with the booster is more matched with vehicle type space layout and arrangement adaptation, the clutch pedal with the booster is easier to mount and adjust in whole vehicle assembly, and the accuracy and smoothness of actions of the whole system are effectively guaranteed by the aid of the rotation angle self-adjusting function of the knuckle bearing.

Description

Technical Field

[0001] This utility model belongs to the field of automotive clutch control technology. Specifically, this utility model relates to a pedal connection mechanism suitable for automotive clutch systems. Background Technology

[0002] In the automotive clutch system, the pedal linkage mechanism is crucial. It is a key mechanical or electronic structure in the car that transmits the driver's pedal operations (such as pressing or releasing) to the relevant actuators (such as the accelerator, brake, and clutch).

[0003] Currently, the clutch pedal structure of automobiles is a single-stage switching mechanism. Adjusting the pedal travel requires adjusting the length of the master cylinder guide rod. The master cylinder is obstructed inside the driver's cab, making adjustment difficult, time-consuming, and labor-intensive.

[0004] Therefore, the design of the cab, wheel wells, and instrument assembly has become increasingly complex, resulting in limited space for their arrangement. In particular, pedals with clutch master cylinder booster structures are even more difficult to install due to limited space.

[0005] This utility model improves the layout by designing a two-stage connection and conversion mechanism, making it more suitable for the space layout of the vehicle and easier to adapt to. The pedal travel is easy to adjust. At the same time, the joint bearing in the mechanism has a self-adjusting function for the rotation angle, which can effectively solve the jamming problem of ordinary structures and ensure the accuracy and smoothness of the entire system's operation. Utility Model Content

[0006] This invention provides a pedal connection mechanism for automotive clutch systems, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a pedal connection mechanism suitable for automobile clutch system, including a side plate, a pedal active arm assembly, a pedal driven arm bracket welded to the pedal active arm assembly via a rotating shaft a, a primary transfer structure mounted on the pedal driven arm bracket, and a secondary transfer structure rotatably connected to the primary transfer structure via a rotating shaft b.

[0008] Preferably, a clutch switch mounting bracket is installed on the upper half of the side plate, the secondary adapter structure is connected to a clutch switch limit bracket via a rotating shaft c, and a clutch master cylinder mounting bracket is installed below the clutch switch mounting bracket.

[0009] Preferably, the lower half of the side plate is equipped with a clutch pedal lower limit bracket and a clutch pedal upper limit bracket, and the pedal active arm assembly is provided with a return spring.

[0010] Preferably, the primary transition structure includes a fork structure connected to the pedal driven arm bracket, a joint bearing mechanism connected to the threaded rod of the fork structure, and a locking nut sleeved at the connection between the fork structure and the joint bearing mechanism.

[0011] Preferably, the secondary adapter structure includes an adapter bracket connected to the rotating shaft c and a rotating shaft sleeve sleeved on the rotating shaft c.

[0012] The beneficial effects of adopting the above technical solutions are:

[0013] 1. In terms of spatial layout adaptability, this unique two-stage connection conversion mechanism significantly improves the layout of the clutch pedal structure with booster. This mechanism can adapt to the vehicle's spatial layout more flexibly, make full use of the limited space, and make the arrangement of the clutch system components more reasonable and compact. It can achieve good fit whether in a complex cab or near the wheel arches and instrument assembly where space is limited, effectively solving the problem that traditional mechanisms are difficult to arrange due to limited space.

[0014] 2. Regarding pedal travel adjustment, this invention offers significant convenience. Traditional methods require adjusting the length of the obstructed master pump guide rod, while this design only requires adjusting the length of the connecting guide rod of the primary adapter mechanism. This allows for easy adjustment of the pedal height and travel without altering the clutch booster pump guide rod length, while simultaneously meeting the pedal free travel requirements. This improvement greatly simplifies the pedal travel adjustment process, saves adjustment time and labor costs, and improves production and maintenance efficiency.

[0015] 3. In addition, this utility model adopts a joint bearing in the mechanism. This innovative design gives the mechanism a self-adjusting function for rotation angle. During the operation of the clutch system, the joint bearing can automatically adapt to the changes in the relative motion angle between the components, effectively avoiding the jamming problem caused by angle deviation in ordinary structures. This ensures the accuracy and smoothness of the entire clutch system, improves the driver's operating experience, reduces clutch system failures that may be caused by jamming, and extends the service life of the clutch system. Attached Figure Description

[0016] Figure 1 This is a front view provided by this utility model;

[0017] Figure 2 This is a side view provided by this utility model;

[0018] Figure 3 This is a partially enlarged schematic diagram of the present invention;

[0019] in:

[0020] 1. Pedal drive arm assembly; 2. Clutch pedal lower limit bracket; 3. Pedal driven arm bracket; 4. Primary adapter mechanism; 41. Joint bearing mechanism; 42. Locking nut; 43. Fork structure; 5. Shaft b; 6. Secondary adapter mechanism; 61. Adapter bracket; 62. Shaft sleeve; 7. Clutch master cylinder mounting bracket; 8. Clutch switch limit bracket; 9. Clutch switch mounting bracket; 10. Shaft c; 11. Shaft a; 12. Clutch pedal upper limit bracket; 13. Return spring. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0022] Specifically, such as Figures 1 to 3 As shown, a pedal connection mechanism suitable for automotive clutch systems includes a side plate, a pedal drive arm assembly 1, a pedal driven arm bracket 3 welded to the pedal drive arm assembly 1 via a rotating shaft a11, a primary adapter structure 4 mounted on the pedal driven arm bracket 3, and a secondary adapter structure 6 rotatably connected to the primary adapter structure 4 via a rotating shaft b5.

[0023] It should be noted that this pedal connection mechanism, through its structural design and working method, not only solves the problem of space constraints in the cab for the clutch pedal with booster, making it more compatible with the vehicle's spatial layout and arrangement, but also makes it easier to install and adjust during vehicle assembly. At the same time, by utilizing the self-adjusting function of the joint bearing's rotation angle, it effectively ensures the precision and smoothness of the entire system's operation.

[0024] In addition, leverage ratio optimization:

[0025] Lever ratio = length of active arm L1 / length of secondary transfer mechanism connecting main pump bracket L3.

[0026] The upper half of the side plate is equipped with a clutch switch mounting bracket 9, the secondary adapter structure 6 is connected to a clutch switch limit bracket 8 via a rotating shaft c10, and a clutch master pump mounting bracket 7 is installed below the clutch switch mounting bracket 9.

[0027] The lower half of the side plate is equipped with a clutch pedal lower limit bracket 2 and a clutch pedal upper limit bracket 12, and a return spring 13 is provided on the pedal active arm assembly 1.

[0028] The primary transition structure 4 includes a fork structure 43 connected to the pedal driven arm bracket 3, a joint bearing mechanism 41 connected to the threaded rod of the fork structure 43, and a locking nut 42 sleeved at the connection between the fork structure 43 and the joint bearing mechanism 41.

[0029] It should be noted that the fork-connecting mechanism 43 is connected to the pedal driven boom bracket 3 via a pin, cotter pin, and flat washer. The threaded rod of the fork-connecting mechanism 43 is threadedly connected to the spherical bearing mechanism 41 and is tightened with a locking nut 42 to prevent loosening. This connection method ensures the stability of the connection and allows for adjustment when needed.

[0030] In addition, the spherical bearing (4-1) allows for a deflection angle of ±15°, eliminating mechanism jamming caused by installation errors. The length of the first-stage transition mechanism can be adjusted by locking the nut 42, thereby adjusting the initial height of the pedal and the pedal travel.

[0031] The secondary transition structure 6 includes a transition bracket 61 connected to the rotating shaft c10 and a rotating shaft sleeve 62 sleeved on the rotating shaft c10.

[0032] It should be noted that when the first-stage transfer mechanism 4 is activated, it will drive the transfer bracket 61 to rotate. The rotation of the transfer bracket 61 will in turn cause the connected pump guide rod to move, realizing the pressure building and depressurization process of the clutch system. At the same time, the clutch switch limit bracket 8 and the transfer bracket 61 are both welded to the rotating shaft sleeve 62. As the transfer bracket 61 rotates, the clutch switch limit bracket 8 will rotate accordingly, thereby compressing or releasing the clutch switch button, realizing feedback and control of the clutch system status.

[0033] The specific working method is described below using specific embodiments: Example 1

[0034] Clutch system pressure build-up process: When the driver depresses the clutch pedal, the clutch pedal active arm rotates clockwise around the rotating shaft a11. Since the pedal driven arm bracket 3 and the active arm 1 are welded together on the rotating shaft a11, the driven arm bracket 3 will also rotate by the same angle. The primary transfer mechanism 4 connected to the driven arm moves upward with the rotation of the driven arm bracket 3, which in turn causes the secondary transfer mechanism 6 to rotate around the rotating shaft b5. When the secondary transfer mechanism 6 rotates, its driven bracket rotates accordingly, compressing the connected clutch booster pump guide rod, and finally realizing the pressure build-up of the clutch pipeline. The pressure is transmitted to the clutch operating mechanism to realize clutch disengagement. Example 2

[0035] The clutch system depressurization process is the opposite of the pressure build-up process. When the driver releases the clutch pedal, the clutch pedal active arm rotates counterclockwise, causing the first-stage transfer mechanism 4 to move downwards. The second-stage transfer mechanism 6 rotates counterclockwise around the rotating shaft b5. The driven bracket releases the pressure on the clutch booster pump guide rod, the clutch line depressurizes, and the clutch re-engages.

[0036] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A pedal connection mechanism for an automotive clutch system, comprising a side plate, characterized in that, It also includes a pedal drive arm assembly (1), a pedal driven arm bracket (3) welded to the pedal drive arm assembly (1) via a pivot a (11), a primary transition structure (4) mounted on the pedal driven arm bracket (3), and a secondary transition structure (6) rotatably connected to the primary transition structure (4) via a pivot b (5).

2. The pedal connection mechanism for an automotive clutch system according to claim 1, characterized in that: The upper half of the side plate is equipped with a clutch switch mounting bracket (9), the secondary transition structure (6) is connected to a clutch switch limit bracket (8) via a rotating shaft c (10), and a clutch master pump mounting bracket (7) is installed below the clutch switch mounting bracket (9).

3. A pedal connection mechanism for an automotive clutch system according to claim 2, characterized in that: The lower half of the side plate is equipped with a clutch pedal lower limit bracket (2) and a clutch pedal upper limit bracket (12), and a return spring (13) is provided on the pedal active arm assembly (1).

4. A pedal connection mechanism for an automotive clutch system according to claim 1, characterized in that: The first-level transition structure (4) includes a fork structure (43) connected to the pedal driven arm bracket (3), a joint bearing mechanism (41) connected to the threaded rod of the fork structure (43), and a locking nut (42) sleeved at the connection between the fork structure (43) and the joint bearing mechanism (41).

5. A pedal connection mechanism for an automotive clutch system according to claim 2, characterized in that: The secondary transition structure (6) includes a transition bracket (61) connected to the rotating shaft c (10) and a rotating shaft sleeve (62) sleeved on the rotating shaft c (10).

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