Clutch and brake control mechanism of tractor

Abstract

The utility model relates to a clutch and brake operating mechanism of a tractor in the technical field of agricultural machinery equipment, which comprises a support frame, a clutch and brake operating mechanism and a clutch and brake operating mechanism, the brake assembly is provided with a brake pedal, a brake rocker arm, a brake pull rod and a brake rocker arm which are rotationally connected in sequence, and the brake rocker arm transversely penetrates through the supporting shaft sleeve and is rotationally connected with the supporting shaft sleeve, so that the brake pedal is pedaled to sequentially drive the brake rocker arm, the brake pull rod and the brake rocker arm to move, and the brake effect is achieved; according to the utility model, braking and clutch operations are integrated in the same system, the overall structure is simplified, the operation is simpler and more convenient, and oil storage spaces exist between the supporting shaft sleeve and the braking rocker arm as well as between the rotating shaft sleeve and the braking rocker arm, so that the flexible rotation among components is ensured, the abrasion is reduced, and the condition that a rotating part is rusted can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery equipment technical field especially relates to a tractor clutch, brake control mechanism. BACKGROUND

[0002] In agricultural machinery, tractor as important operation tool, its control mechanism design and performance directly influence the convenience and safety of operation. At present, most of the tractor, especially the transition mechanism of clutch and brake of tracked tractor is arranged below the two sides of transmission case. Because tracked tractor mostly works in paddy field, the transition mechanism of clutch and brake is easy to rust in water, thus causing the pedal of clutch and brake to be stepped too hard, causing the driver to drive fatigue, more serious, causing the clutch and brake not to return, and the clutch plate is burnt out, the brake is burnt out and other faults.

[0003] Therefore, the utility model discloses a tractor clutch, brake control mechanism. CONTENT OF UTILITY MODEL

[0004] In order to overcome the insufficient in the background art, the utility model discloses a tractor clutch, brake control mechanism.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A tractor clutch, brake control mechanism, comprising:

[0007] Support frame, the rear side part is equipped with the support shaft sleeve that extends upwards;

[0008] Brake assembly has the brake pedal, brake rocker, brake pull rod and brake rocker arm that rotationally connect in turn, the brake rocker arm traverses the support shaft sleeve and is rotationally connected with it, in order to pedal brake pedal, in turn drive brake rocker, brake pull rod and brake rocker arm movement, reach brake effect;

[0009] Clutch assembly has the clutch pedal, clutch transition rocker, clutch pull rod and clutch separation rocker arm that rotationally connect in turn, the clutch transition rocker arm corner is equipped with the rotation shaft sleeve that rotates and sets up in brake rocker, in order to pedal clutch pedal, in turn drive clutch transition rocker, clutch pull rod and clutch separation rocker arm movement, reach clutch separation effect;

[0010] Wherein, the support shaft sleeve and rotation shaft sleeve all exist oil storage space between brake rocker, in order to flexible rotation cooperation.

[0011] Further, the brake rocker is equipped with the elastic retaining ring for shaft in the position of both ends of support shaft sleeve and rotation shaft sleeve.

[0012] Further, the support sleeve and the rotating sleeve are provided with a filling nozzle.

[0013] Further, the rear side of the support frame is provided with at least two support sleeves in lateral spacing.

[0014] Further, the front and rear sides of the support frame are provided with assembly bolts correspondingly connected to the upper part of the gearbox shell of the tractor.

[0015] Further, the brake pedal and the brake rocker arm are correspondingly hinged through a brake vertical pull rod; the clutch pedal and the clutch transition rocker arm are correspondingly hinged through a clutch vertical pull rod.

[0016] Further, the brake pull rod and the brake rocker arm are provided with two groups in lateral spacing and are correspondingly connected to the two ends of the brake rocker arm.

[0017] Further, the brake rocker arm comprises:

[0018] A brake pedal shaft is transversely arranged and is rotationally connected to the support sleeve and the rotating sleeve;

[0019] A brake master rocker arm is fixedly connected to the shaft body of the brake pedal shaft and is correspondingly connected to the brake pedal;

[0020] Two brake side rocker arms are arranged at the two ends of the brake pedal shaft and are correspondingly connected to the brake pull rod.

[0021] Further, the two ends of the clutch transition rocker arm are provided with a plurality of mounting holes in the length direction, so as to be matched with the corresponding clutch pedal or clutch pull rod through different mounting holes, so as to adjust the clutch separation force and the clutch separation stroke.

[0022] Further, the two ends of the pull rod are provided with threaded parts, and the two threaded parts are sequentially threadedly matched with an adjusting nut and a U-shaped fork with an outward opening from inside to outside.

[0023] Compared with the prior art, the utility model has the beneficial effects that:

[0024] 1. By integrating the brake and clutch operations in the same system, the overall structure is simplified, the operation is more convenient, the support sleeve and the rotating sleeve are provided with oil storage spaces between the brake rocker arm, the flexible rotation between components is ensured, the wear is reduced, and the rusting of the rotating part can be effectively avoided.

[0025] 2. The arrangement of the elastic retaining ring for the shaft helps to stabilize the positions of the brake rocker arm and the clutch transition rocker arm, prevents sliding, and improves the reliability of the system.

[0026] 3、The filling nozzle is arranged, lubricating oil can be added or replaced in the oil storage space, long-term stable lubrication between components is ensured, and maintenance difficulty and cost are reduced.

[0027] 4、The vertical pull rod is arranged, a more flexible operation angle is provided, and the operation experience of the driver is improved.

[0028] 5、The adjusting nut and the U-shaped fork arranged in the pull rod can help to accurately adjust the clutch and brake effect, and the adaptability and accuracy of the system are improved. SCHEMATIC DRAWINGS

[0029] Figure 1 It is a structural schematic view of the utility model;

[0030] Figure 2 It is a I partial enlarged view in Figure 1

[0031] Figure 3 It is a II partial enlarged view in Figure 1

[0032] In the figure: 1, support frame; 11, support shaft sleeve; 12, assembly bolt; 2, brake assembly; 21, brake pedal; 22, brake rocker arm; 23, brake pull rod; 24, brake rocker arm; 241, brake pedal shaft; 242, brake total rocker arm; 243, brake side rocker arm; 25, brake vertical pull rod; 3, clutch assembly; 31, clutch pedal; 32, clutch transition rocker arm; 321, rotating shaft sleeve; 322, mounting hole; 33, clutch pull rod; 34, clutch separation rocker arm; 35, clutch vertical pull rod; 4, elastic retaining ring for shaft; 5, filling nozzle; 6, adjusting nut; 7, U-shaped fork. DETAILED DESCRIPTION

[0033] The utility model can be explained in detail through the following examples, the purpose of the utility model is disclosed to protect all technical improvements within the scope of the utility model, in the description of the utility model, it needs to be understood that if there are terms "upper", "lower", "front", "rear", "left", "right" and the like indicate the orientation or positional relationship, only the corresponding of the drawings of the application, in order to facilitate the description of the utility model; It needs to be understood that if there are terms "end", "side", "end portion", "side portion", "transverse", "longitudinal" and the like indicate the orientation or positional relationship, only the length and width of the corresponding component correspond, that is, "end portion" indicates the head-tail area of the length direction of the corresponding component, "side portion" indicates the head-tail area of the width direction of the corresponding component; In order to facilitate the description of the utility model and not indicate or imply that the device or element referred to must have a particular orientation.

[0034] Example one, in combination with the drawings Figure 1 A tractor clutch and brake operating mechanism, comprising:​​

[0035] The support frame 1 is provided with a support shaft sleeve 11 extending upward at the rear side. According to requirements, at least two support shaft sleeves 11 are provided at the rear side of the support frame 1 in a transverse direction. In the example, one support shaft sleeve 11 is provided at each side of the rear side of the support frame 1.

[0036] Further, when mounted on the tractor, the support frame 1 is provided with an assembly bolt 12 corresponding to the upper part of the transmission case (not shown in the figure) of the tractor. According to requirements, the assembly bolt 12 can be mounted on the upper part of the transmission case of the tractor by screwing or welding.

[0037] According to requirements, two assembly bolts 12 are provided at each side of the support frame 1.

[0038] The brake assembly 2 has a brake pedal 21, a brake rocker 22, a brake pull rod 23 and a brake rocker 24 connected in sequence. The brake rocker 22 transversely penetrates the support shaft sleeve 11 and is rotationally connected thereto, so as to step on the brake pedal 21, sequentially drive the brake rocker 22, the brake pull rod 23 and the brake rocker 24 to move, and achieve the braking effect.

[0039] The clutch assembly 3 has a clutch pedal 31, a clutch transition rocker 32, a clutch pull rod 33 and a clutch separation rocker 34 connected in sequence. The clutch transition rocker 32 is provided with a rotating sleeve 321 rotatably sleeved on the brake rocker 22, so as to step on the clutch pedal 31, sequentially drive the clutch transition rocker 32, the clutch pull rod 33 and the clutch separation rocker 34 to move, and achieve the clutch separation effect.

[0040] According to requirements, the brake pedal 21 and the brake rocker 22 are correspondingly hinged by a brake vertical pull rod 25 for more convenient assembly and adaptation to different heights. The clutch pedal 31 and the clutch transition rocker 32 are correspondingly hinged by a clutch vertical pull rod 35.

[0041] Further, the brake vertical pull rod 25 and the clutch vertical pull rod 35 adopt a length-adjustable structure.

[0042] Specifically, the pull rod is provided with a threaded portion at both ends, and the two threaded portions are sequentially screwed with an adjusting nut 6 and an open outward U-shaped fork 7 from inside to outside. It should be noted that the pull rod is not only suitable for the brake vertical pull rod 25 and the clutch vertical pull rod 35, but also suitable for the brake pull rod 23 and the clutch pull rod 33.

[0043] Among them, the support shaft sleeve 11 and the rotating sleeve 321 are provided with an oil storage space between the support shaft sleeve 11 and the rotating sleeve 321 and the brake rocker 22, so as to be flexibly rotationally connected.

[0044] Further, the support sleeve 11 and the rotating sleeve 321 are both provided with a filling nozzle 5; that is, the filling nozzle 5 can be used to fill the oil space with butter or lubricating grease through a butter filling gun.

[0045] It should be noted that the transverse direction and the longitudinal direction are defined according to the direction of the tractor, that is, the transverse direction is the left-right direction, and the longitudinal direction is the front-rear direction.

[0046] Further, in order to prevent axial movement between the brake rocker arm 22 and the support sleeve 11 and the rotating sleeve 321, and to prevent oil overflow in the oil space, the brake rocker arm 22 is provided with an elastic retaining ring 4 at the positions corresponding to the two ends of the support sleeve 11 and the rotating sleeve 321.

[0047] It should be noted that when assembled and used, the end of the brake pedal 21 and the end of the clutch pedal 31 also need to be connected to the body of the tractor in the prior art. Since the rotating connection position is relatively high, the rotating connection position can not be provided with an oil space.

[0048] Example two, combined with the attached Figures 1-3 The difference between the embodiment one and the embodiment two is that the brake pull rod 23 and the brake rocker arm 24 are spaced apart in the transverse direction and are respectively connected to the two ends of the brake rocker arm 22.

[0049] Further, the brake rocker arm 22 comprises:

[0050] The brake pedal shaft 241 is arranged in the transverse direction and is rotatably connected to the support sleeve 11 and the rotating sleeve;

[0051] The brake total rocker arm 242 is fixedly connected to the shaft body of the brake pedal shaft 241 and is connected to the brake pedal 21;

[0052] The brake side rocker arm 243 has two, which are respectively arranged at the two ends of the brake pedal shaft 241 and are connected to the brake pull rod 23.

[0053] According to the needs, the brake pedal shaft 241, the brake total rocker arm 242 and the brake side rocker arm 243 can be assembled together by welding, or can be fixedly installed together by other existing assembly methods.

[0054] Example three, combined with the attached Figures 1-3 On the basis of the embodiment one or two, in order to adjust the clutch separation force and the clutch separation stroke, a plurality of mounting holes 322 are spaced apart along the length direction of the two ends of the clutch transition rocker arm 32; that is, by cooperating the different mounting holes 322 with the corresponding clutch pedal 31 or clutch pull rod 33, the function of adjusting the clutch separation force and the clutch separation stroke can be realized.

[0055] The utility model discloses the part of not detailed is prior art, for the person skilled in the art, apparently the utility model is not limited to the details of the above exemplary embodiments, and can realize the utility model with other specific forms without departing from the spirit or basic characteristics of the utility model, therefore, no matter from which point, should be regarded as exemplary, and is non-restrictive, the range of the utility model is defined by the appended claims instead of the above description, therefore, all changes falling in the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model, any reference signs in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. A tractor clutch and brake operating mechanism characterized by comprising: The utility model relates to a support frame (1) is provided with the support shaft sleeve (11) that extends upwards at the rear side part, and the brake assembly (2) is provided with the brake pedal (21), brake swing arm (22), brake pull rod (23) and brake arm (24) that are connected in rotation, and the brake swing arm (22) is transversely through the support shaft sleeve (11) and is connected in rotation with it, so as to step the brake pedal (21), sequentially drive brake swing arm (22), brake pull rod (23) and brake arm (24) movement, reach the brake effect, and the clutch assembly (3) is provided with the clutch pedal (31), clutch transition swing arm (32), clutch pull rod (33) and clutch separation swing arm (34) that are connected in rotation, and the clutch transition swing arm (32) is provided with the rotation sleeve of rotation sleeve (321) in brake swing arm (22) at the corner, so as to step the clutch pedal (31), sequentially drive clutch transition swing arm (32), clutch pull rod (33) and clutch separation swing arm (34) movement, reach the clutch separation effect, and the support shaft sleeve (11) and rotation sleeve (321) are all with the oil storage space between brake swing arm (22), so as to flexible rotation cooperation. The brake swing arm (22) is provided with the elastic retaining ring (4) for shaft at the position of both ends of the support shaft sleeve (11) and rotation sleeve (321). The support shaft sleeve (11) and rotation sleeve (321) are provided with the filling nozzle (5). The rear side part of the support frame (1) is provided with at least two support shaft sleeves (11) along the transverse direction. The front and rear side parts of the support frame (1) are provided with the mounting bolt (12) connected to the upper part of the tractor gearbox shell.

2. A tractor clutch and brake operating mechanism according to claim 1, wherein: The brake pedal (21) and brake swing arm (22) are connected by the brake vertical pull rod (25), and the clutch pedal (31) and clutch transition swing arm (32) are connected by the clutch vertical pull rod (35).

3. A tractor clutch and brake operating mechanism according to claim 2, wherein: The brake pull rod (23) and brake arm (24) are provided with two groups along the transverse direction, and are connected to the both ends of the brake swing arm (22).

4. A tractor clutch and brake operating mechanism as defined in claim 1 wherein: The brake pedal shaft (241) is transversely arranged and connected in rotation with the support shaft sleeve (11) and the rotation sleeve, the brake total swing arm (242) is fixedly connected to the shaft body of the brake pedal shaft (241) and connected to the brake pedal (21), and the brake side swing arm (243) is provided with two groups at both ends of the brake pedal shaft (241) and connected to the brake pull rod (23).

5. A tractor clutch and brake operating mechanism as defined in claim 1 wherein: The clutch transition swing arm (32) is provided with a plurality of mounting holes (322) along the length direction at both ends, so as to adjust the clutch separation force and the clutch separation stroke by the different mounting holes (322) and the corresponding clutch pedal (31) or clutch pull rod (33).

6. A tractor clutch and brake operating mechanism as defined in claim 1 wherein: The pull rod is provided with a threaded part at both ends, and the two threaded parts are sequentially provided with the adjusting nut (6) and the U-shaped fork (7) with the opening outward from inside to outside.

7. A tractor clutch and brake operating mechanism as defined in claim 1 wherein: ​ 8. A tractor clutch and brake operating mechanism as defined in claim 1 wherein: ​ ​ ​ ​ 9. A tractor clutch and brake operating mechanism as defined in claim 1 wherein: ​ 10. A tractor clutch and brake operating mechanism according to claim 1 or claim 6 wherein: ​

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