Clutch and brake linkage control device

Abstract

The utility model discloses a clutch and brake linkage control device. The clutch and brake linkage control device comprises a clutch assembly and a brake assembly, the clutch assembly comprises a clutch body, a clutch arm, a clutch return spring and a pedal assembly rotationally arranged on the clutch body, and the brake assembly comprises a brake body, a brake arm and a brake return spring. And the other end of the brake return spring is connected with the pedal assembly through a first connecting arm. By arranging the first connecting arm, the torque of the brake return spring is larger than that of the clutch return spring, so that the expansion amount of the brake return spring is larger than that of the clutch return spring, and when the pedal assembly is treaded, the brake return spring can preferentially drive the brake arm to release braking; and then the clutch return spring pulls the clutch arm to be closed in a clutch mode, linkage control over clutch and braking can be completed by arranging one pedal assembly, and the occupied space is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary tillers, and in particular relates to a clutch and brake linkage control device. Background Art

[0002] The brake pedal assembly and clutch pedal assembly are important control devices in the operation of agricultural machinery. The brake pedal assembly performs braking control, while the clutch pedal assembly performs clutch control. Existing agricultural machinery uses two separate control mechanisms: when the clutch pedal is stepped on, the clutch fork in the clutch fork mechanism rotates, shifting the clutch to achieve clutch control. When the brake pedal is stepped on, the lower end of the brake pedal drives the brake disc arm in the brake linkage mechanism against the inner wall of the brake hub, achieving braking. This separate control system is prone to misoperation and requires two separate pedals for control, which takes up a lot of space. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a clutch-brake linkage control device, aiming to solve the technical problems of the existing clutch control device having a complex structure and occupying a large space.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clutch-brake linkage control device, comprising a clutch assembly and a brake assembly arranged at intervals, the clutch assembly comprising a clutch body, a clutch arm rotatably arranged on the clutch body, a clutch return spring with one end arranged on the clutch arm, and a pedal assembly rotatably arranged on the clutch body and connected to the other end of the clutch return spring for elastically pulling the clutch return spring, the brake assembly comprising a brake body, a brake arm rotatably arranged on the brake body, a brake return spring with one end arranged on the brake arm, and the other end of the brake return spring being connected to the pedal assembly via a first connecting arm.

[0005] Furthermore, the pedal assembly includes a pedal shaft rotatably arranged on the clutch body, a pedal sleeved on the pedal shaft, and a rotating arm fixedly arranged on the pedal and respectively connected to the clutch return spring and the first connecting arm.

[0006] Furthermore, the cross section of the rotating arm is rectangular, and the rotating arm is provided with a plurality of positioning holes at intervals along its length direction, and the clutch return spring can be connected to one of the positioning holes.

[0007] Furthermore, a first plug plate is provided at one end of the first connecting arm close to the rotating arm, a first opening for the rotating arm to extend into is provided on the first plug plate, a first through hole is provided on the first plug plate, a first through hole is provided on the rotating arm corresponding to the position of the first through hole, and a positioning shaft is inserted in the first through hole and the first through hole.

[0008] Furthermore, the positioning shaft is provided with a radial through hole along its radial direction, and a locking pin is inserted into the radial through hole.

[0009] Furthermore, it also includes a manual clutch device for controlling the rotation of the rotating arm.

[0010] Furthermore, the manual clutch device includes a first box body, a first handle rotatably arranged on the first box body, and a second connecting arm with one end connected to the rotating arm, and the other end of the second connecting arm is transmission-connected to the first handle.

[0011] Furthermore, it also includes a manual braking device for controlling the rotation of the brake arm.

[0012] Furthermore, the manual brake device includes a second box body, a second handle rotatably arranged on the second box body, and a third connecting arm with one end connected to the brake arm, and the other end of the third connecting arm is transmission-connected to the second handle.

[0013] Furthermore, a second plug plate is provided at one end of the third connecting arm close to the brake arm, a second opening for the brake arm to extend into is provided on the second plug plate, a second through hole is provided on the second plug plate, a second through hole is provided on the brake arm corresponding to the position of the second through hole, positioning pins are inserted in the second through hole and the second through hole, a limiting ring is provided on one side of the second plug plate, and the limiting ring is sleeved on the positioning pin.

[0014] The beneficial effect of the present invention is that compared with the prior art, the present invention provides a clutch-brake linkage control device, in which the pedal assembly is connected to the clutch arm through a clutch return spring, and the pedal assembly is connected to the brake arm through a first connecting arm and a brake return spring. In this way, by setting the first connecting arm, the torque of the brake return spring is larger than the torque of the clutch return spring, resulting in the expansion and contraction of the brake return spring being greater than the expansion and contraction of the clutch return spring. When the pedal assembly is stepped on, the brake return spring will preferentially drive the brake arm to release the brake, and then the clutch return spring will pull the clutch arm to close the clutch, thereby achieving the linkage control of the clutch and the brake by setting a group of pedal assemblies, reducing the complexity of the device structure and greatly reducing the occupied space. At the same time, through a single group of pedal assemblies, when an unexpected situation occurs in the agricultural tiller, the clutch can be disengaged and the brake can be stopped by simply loosening the single group of pedal assemblies, which greatly shortens the user's reaction time, improves the safety of use, and effectively avoids damage to the user or the agricultural tiller.

[0015] Other advantages, objectives, and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or they may be taught by those skilled in the art from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention is described with the following drawings:

[0017] Figure 1 This is a structural diagram from a first perspective of a clutch-brake linkage control device proposed in one embodiment of the present utility model;

[0018] Figure 2 This is a schematic structural diagram of a brake assembly proposed in one embodiment of the present utility model;

[0019] Figure 3 A structural diagram of a clutch-brake linkage control device from a second perspective, according to an embodiment of the present invention;

[0020] Figure 4 The present invention is proposed in one embodiment Figure 3 A magnified view of the middle panel.

[0021] Figure Number:

[0022] 1-clutch assembly; 11-clutch body; 12-clutch arm; 13-clutch return spring; 14-pedal assembly; 141-pedal shaft; 142-pedal; 143-rotating arm; 144-positioning hole;

[0023] 2-brake assembly; 21-brake body; 22-brake arm; 23-brake return spring;

[0024] 3-first connecting arm; 31-first plug plate; 32-first opening; 33-first through hole; 34-positioning shaft;

[0025] 4-lock pin;

[0026] 5-manual clutch device; 51-first box body; 52-first handle; 53-second connecting arm;

[0027] 6 - manual brake device, 61 - second box body; 62 - second handle; 63 - third connecting arm; 64 - second plug plate; 65 - second opening; 66 - second through hole; 67 - positioning pin; 68 - limiting ring. DETAILED DESCRIPTION

[0028] like Figures 1 to 4As shown, this embodiment proposes a clutch-brake linkage control device, which includes a clutch assembly 1 and a brake assembly 2 arranged at intervals. Specifically, the clutch assembly 1 includes a clutch body 11, a clutch arm 12, a clutch return spring 13, and a pedal assembly 14. The clutch arm 12 is rotatably arranged on the clutch body 11, one end of the clutch return spring 13 is arranged on the clutch arm 12, and the other end of the clutch return spring 13 is connected to the pedal assembly 14. The pedal assembly 14 is rotatably arranged on the clutch body 11, and the pedal assembly 14 can be used to elastically pull the clutch return spring 13 to realize the opening and closing of the clutch; in addition, the brake assembly 2 includes a brake body 21, a brake arm 22, and a brake return spring 23. The brake arm 22 is rotatably installed on the brake body 21, one end of the brake return spring 23 is arranged on the brake arm 22, and the other end of the brake return spring 23 is connected to the pedal assembly 14 through the first connecting arm 3. In this way, the pedal assembly 14 is connected to the clutch arm 12 through the clutch return spring 13, and the pedal assembly 14 is connected to the brake arm 22 through the first connecting arm 3 and the brake return spring 23. In this way, by providing the first connecting arm 3, the torque of the brake return spring 23 is larger than the torque of the clutch return spring 13, resulting in the expansion and contraction of the brake return spring 23 being greater than the expansion and contraction of the clutch return spring 13. When the pedal assembly 14 is stepped on, under the action of the first connecting arm 3, the brake return spring 23 will preferentially drive the brake arm 22 to release the brake. The clutch arm 12 is pulled to engage and engage the clutch by the clutch return spring 13, thereby achieving linkage control of the clutch and the brake by setting a set of pedal assemblies 14, reducing the complexity of the device structure and greatly reducing the occupied space. At the same time, through the single set of pedal assemblies 14, when an unexpected situation occurs in the agricultural tiller, the user does not need to think too much, and can disengage the clutch and achieve braking and stopping by simply releasing the single set of pedal assemblies 14, which greatly shortens the user's reaction time, greatly improves the safety of use, and effectively avoids damage to the user or the agricultural tiller.

[0029] Further, see Figure 1As shown, the pedal assembly 14 includes a pedal shaft 141, a pedal 142, and a rotating arm 143. The pedal shaft 141 is rotatably mounted on the clutch body 11, and the pedal 142 is sleeved on the pedal shaft 141. In addition, a rotating arm 143 is fixed to the pedal 142, and the rotating arm 143 is respectively connected to the clutch return spring 13 and the first connecting arm 3. In this way, when the pedal 142 is stepped on, the pedal 142 can rotate along the pedal shaft 141, and the pedal 142 drives the rotating arm 143 to rotate. The rotating arm 143 then synchronously pulls the clutch return spring 13 and the first connecting arm 3 to move. The first connecting arm 3 then drives the brake return spring 23 to move. Since the torque of the brake return spring 23 is larger than the torque of the clutch return spring 13, the expansion and contraction of the brake return spring 23 is greater than the expansion and contraction of the clutch return spring 13. During the synchronous force application process, the brake return spring 23 will preferentially pull The dynamic brake arm 22 releases the brake, and then when the extension and contraction amount of the clutch return spring 13 reaches a certain value, the clutch return spring 13 will drive the clutch arm 12 to realize clutch closure, thereby realizing the linkage control of clutch and brake through a single pedal 142, which greatly reduces the structural complexity of the existing structure of separately controlling the clutch and brake through two pedals, and reduces the occupied space; at the same time, when an unexpected situation occurs in the agricultural tiller, the machine can be braked by releasing the single pedal 142, and the user does not need too much reaction time, which greatly improves the safety of use.

[0030] Further, see Figure 1 As shown, the rotating arm 143 has a rectangular cross-section. Specifically, the rotating arm 143 has multiple positioning holes 144 spaced apart along its length, and the clutch return spring 13 can be connected to one of the positioning holes 144. By providing multiple positioning holes 144, the user can adjust the clutch return spring 13 to connect with different positioning holes 144 according to actual needs, thereby adjusting the torque of the clutch return spring 13 and, in turn, the amount of expansion and contraction of the clutch return spring 13 to meet the user's various needs. Preferably, the number of positioning holes 144 can be four, five, six, seven, etc. Of course, the number of positioning holes 144 can also be set to another number depending on actual conditions and specific needs, and this is not a single limitation here.

[0031] For further information, see Figure 3 and Figure 4As shown, the first connecting arm 3 is provided with a first insert plate 31 at one end near the rotating arm. The first insert plate 31 has a first opening 32 formed therein, into which the rotating arm 143 extends. Furthermore, the first insert plate 31 has a first through-hole formed therein, and the rotating arm 143 has a first through-hole 33 formed therein. The first through-hole 33 is positioned corresponding to the first through-hole, and a positioning shaft 34 is inserted into the first through-hole and the first through-hole 33. Thus, with the positioning shaft 34 inserted into the first through-hole and the first through-hole 33, when the rotating arm 143 rotates, the rotating arm 143 drives the first insert plate 31 to rotate, which in turn drives the first connecting arm 3 to move via the positioning shaft 34. The first connecting arm 3 then drives the brake return spring 23 to expand and contract.

[0032] Preferably, see Figure 4 As shown, the positioning shaft 34 has a radial through hole formed along its radial direction, into which a locking pin 4 is inserted. Thus, by providing the locking pin 4, after the positioning shaft 34 passes through the first through hole and the first through hole 33, the locking pin 4 is inserted into the radial through hole, thereby securing the positioning shaft 34 and preventing the positioning shaft 34 from slipping out of the first through hole and / or the first through hole 33 during rotation, thereby affecting the subsequent linkage effect.

[0033] Further, see Figure 1 and Figure 3 As shown, the device further includes a manual clutch device 5, which can control the rotation of the rotating arm 43. In this way, the manual clutch device 5 can be manually controlled to control the rotation of the rotating arm 143, which in turn synchronously pulls the clutch return spring 13 and the first connecting arm 3 to move, and the first connecting arm 3 in turn drives the brake return spring 23 to move. Since the torque of the brake return spring 23 is larger than the torque of the clutch return spring 13, the expansion and contraction of the brake return spring 23 is greater than that of the clutch return spring 13. During the synchronous force application process, the brake return spring 23 will preferentially pull the brake arm 22 to release the brake, and then the clutch return spring 13 will drive the clutch arm 12 to achieve clutch closure, thereby realizing manual control of the linkage control of the clutch and brake.

[0034] Specifically, see Figure 3 As shown, the manual clutch device 5 includes a first housing 51, on which a first handle 52 is provided. Furthermore, the manual clutch device 5 also includes a second connecting arm 53, one end of which is connected to the rotating arm 143, and the other end of which is in transmission connection with the first handle 52. Thus, by rotating the first handle 52, the first handle 52 drives the rotating arm 143 to rotate via the second connecting arm 53, thereby achieving subsequent combined control of clutching and braking.

[0035] Further, see Figure 2 and Figure 3 As shown, the device further includes a manual brake device 6, which can control the rotation of the rotating arm 143. In this way, the manual brake device 6 can be manually controlled to control the rotation of the rotating arm 143, which in turn synchronously pulls the clutch return spring 13 and the first connecting arm 3 to move, and the first connecting arm 3 in turn drives the brake return spring 23 to move. Since the torque of the brake return spring 23 is larger than the torque of the clutch return spring 13, the expansion and contraction of the brake return spring 23 is greater than that of the clutch return spring 13. During the synchronous force application process, the brake return spring 23 will preferentially pull the brake arm 22 to release the brake, and then the clutch return spring 13 will drive the clutch arm 12 to achieve clutch closure, thereby realizing manual control of the linkage control of the clutch and brake.

[0036] Specifically, see Figure 3 As shown, the manual brake device 6 includes a second housing 61, which is provided with a second handle 62. Furthermore, the manual brake device 6 includes a third connecting arm 63, one end of which is connected to the rotating arm 143, and the other end of which is in transmission connection with the second handle 62. Thus, by rotating the second handle 62, the second handle 62 drives the rotating arm 143 to rotate via the third connecting arm 63, thereby achieving subsequent combined control of clutching and braking.

[0037] For further information, see Figure 2 As shown, a second insert plate 64 is provided at one end of the third connecting arm 63 near the rotating arm 143. The second insert plate 64 has a second opening 65 through which the rotating arm 143 can extend. Furthermore, the second insert plate 64 has a second through-hole, and the rotating arm 143 has a second through-hole 66. The second through-hole 66 is positioned to correspond to the second through-hole. A locating pin 67 is inserted into each of the second through-hole and the second through-hole 66. A retaining ring 68 is provided on one side of the second insert plate 64. Thus, after the locating pin 67 passes through the second through-hole and the second through-hole 66 and is retained in place by the retaining ring 68, when the rotating arm 143 rotates, the rotating arm 143 drives the second insert plate 64 to rotate. The second insert plate 64, via the locating pin 67, drives the third connecting arm 63 to move, which in turn drives the brake return spring 23 to extend and retract.

[0038] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A clutch-brake linkage control device, characterized in that: The invention comprises a clutch assembly and a brake assembly arranged at intervals, wherein the clutch assembly comprises a clutch body, a clutch arm rotatably arranged on the clutch body, a clutch return spring with one end arranged on the clutch arm, and a pedal assembly rotatably arranged on the clutch body and connected to the other end of the clutch return spring for elastically pulling the clutch return spring; the brake assembly comprises a brake body, a brake arm rotatably arranged on the brake body, a brake return spring with one end arranged on the brake arm, and the other end of the brake return spring is connected to the pedal assembly via a first connecting arm.

2. The clutch-brake linkage control device according to claim 1, characterized in that: The pedal assembly includes a pedal shaft rotatably arranged on the clutch body, a pedal sleeved on the pedal shaft, and a rotating arm fixedly arranged on the pedal and respectively connected to the clutch return spring and the first connecting arm.

3. The clutch-brake linkage control device according to claim 2, characterized in that: The cross section of the rotating arm is rectangular, and the rotating arm is provided with a plurality of positioning holes at intervals along its length direction, and the clutch return spring can be connected to one of the positioning holes.

4. The clutch-brake linkage control device according to claim 2, characterized in that: A first plug plate is provided at one end of the first connecting arm close to the rotating arm, a first opening is provided on the first plug plate for the rotating arm to extend into, a first through hole is provided on the first plug plate, a first through hole is provided on the rotating arm corresponding to the position of the first through hole, and a positioning shaft is inserted in the first through hole and the first through hole.

5. The clutch-brake linkage control device according to claim 4, characterized in that: The positioning shaft is provided with a radial through hole along its radial direction, and a locking pin is inserted into the radial through hole.

6. The clutch-brake linkage control device according to claim 2, characterized in that: The utility model also comprises a manual clutch device for controlling the rotation of the rotating arm.

7. The clutch-brake linkage control device according to claim 6, characterized in that: The manual clutch device includes a first box body, a first handle rotatably arranged on the first box body, and a second connecting arm with one end connected to the rotating arm, and the other end of the second connecting arm is transmission-connected to the first handle.

8. The clutch-brake linkage control device according to claim 1, characterized in that: The utility model also comprises a manual braking device for controlling the rotation of the brake arm.

9. The clutch-brake linkage control device according to claim 8, characterized in that: The manual brake device includes a second box body, a second handle rotatably arranged on the second box body, and a third connecting arm connected to the brake arm at one end, and the other end of the third connecting arm is transmission-connected to the second handle.

10. The clutch-brake linkage control device according to claim 9, characterized in that: The third connecting arm is provided with a second plug plate at one end close to the brake arm, and a second opening for the brake arm to extend into is provided on the second plug plate, and a second through hole is provided on the second plug plate. A second through hole is provided on the brake arm corresponding to the position of the second through hole, and positioning pins are inserted in the second through hole and the second through hole. A limiting ring is provided on one side of the second plug plate, and the limiting ring is sleeved on the positioning pin.

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