Agricultural mechanical brake and clutch integrated pedal structure
By integrating agricultural mechanical brakes and clutch pedals, the connecting rod and sliding pin structures are used to achieve automatic brake and clutch switching on a single foot, which solves the problems of misoperation of the dual pedal and clutch stability, and improves operating safety and stability.
Patent Information
- Application Number
- CN202422508080.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-16
AI Technical Summary
In existing agricultural machinery, double pedal operation is likely to lead to misoperation, and the clutch travel is limited and the rotation angle is small, which can easily affect the tightness due to vibration and cause speed fluctuations.
Design an integrated pedal structure for agricultural mechanical brake and clutch, integrating the brake pedal and clutch pedal, and through the coordination of connecting rods, sliding pins and springs, automatic brake and clutch switching under single-leg operation is realized to reduce the risk of misoperation.
Reduces the risk of misoperation of double pedals with one foot, automatically parks, improves the stability of the clutch, and reduces speed fluctuations caused by foot fluctuations.
Smart Images
Figure CN223187351U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of agricultural machinery clutch and brake devices, and particularly relates to a combined brake and clutch pedal structure for agricultural machinery. Background Technique
[0002] With the advancement of agricultural modernization, more and more agricultural machinery and equipment are popularized in the agricultural industry. Judging from the evolution of rotary tillers, it has gradually changed from the initial walking-type micro-tiller to a riding-type rotary tiller with less labor and higher efficiency. In the operation of existing riding-type rotary tillers, the operation mainly still requires the use of both hands and feet to make the equipment run. However, as the aging of the population increases, the age of operators of agricultural machinery and equipment is gradually tending towards old age. Therefore, a more concise operation is easier for operators to get started and reduces the safety risks caused by misoperations.
[0003] In existing agricultural machinery products, for equipment operation and braking, a dual-pedal method is mostly adopted. That is, one pedal is used for working clutch. By means of a clutch cable, the clutch is driven to achieve continuous operation of the equipment. The other is used for parking. That is, this pedal is connected to a brake cable, and the brake mechanism is driven by driving the brake cable to achieve braking.
[0004] In the actual operation process, if the two pedals can be operated by one foot, the risk of misoperation caused by operating with two feet can be reduced. And if the two pedals are integrated into one pedal, it will be safer and more reliable. However, in the current clutch design of agricultural machinery, the stroke of the clutch is limited and the rotation angle is small. During the use of a directly-connected pedal, the operator needs to step on the pedal hard with the foot, otherwise, due to the vibration of the agricultural machinery, the foot surface will become loose, which will easily affect the clutch tightness of the agricultural machinery, resulting in speed fluctuations and impacting the clutch. Content of the Utility Model
[0005] I. Technical Problems to be Solved
[0006] In view of the deficiencies of the prior art, the utility model provides a combined brake and clutch pedal structure for agricultural machinery, which integrates the brake pedal and the clutch pedal of the agricultural machinery, thereby reducing the situation of misoperation when operating two pedals with one foot and lowering the operation difficulty and operation threshold.
[0007] II. Specific Technical Solutions
[0008] An integrated brake and clutch pedal structure for agricultural machinery, including a support plate, on which a pedal, a brake pull plate, a clutch pull plate, a clutch cable and a brake cable are provided. The pedal is hinged to one end of the support plate through a connecting rod thereon. A first kidney-shaped hole is provided in the middle of the support plate. The middle of the brake pull plate is rotatably connected to the upper middle part of the support plate, and a second kidney-shaped hole corresponding to the first kidney-shaped hole is provided at the first end of the brake pull plate. One end of the clutch pull plate is hinged to the connecting rod, and a sliding pin is provided at the other end of the clutch pull plate. The sliding pin passes through the first kidney-shaped hole and the second kidney-shaped hole and can slide along the first kidney-shaped hole and the second kidney-shaped hole. A tension spring is provided at the other end of the support plate, and the other end of the tension spring is fixedly connected to the second end of the brake pull plate. One end of the clutch cable is fixedly connected to the sliding pin, and one end of the brake cable is connected to the first end of the brake pull plate.
[0009] Implementation principle, working principle:
[0010] The basic principle of this solution is that after all the components of this mechanism are assembled, the connecting rod on the pedal can rotate around the connection position on the support plate, and at the same time, the sliding pin pressing through the clutch pull plate can slide along the first kidney-shaped hole and the second kidney-shaped hole, thereby stretching the clutch cable installed on the sliding pin and retracting the brake cable. At this time, the brake cable retracts and the brake of the agricultural machinery is released; the clutch cable of the agricultural machinery is stretched, the clutch is engaged, and the working transmission is started. The role of the tension spring is that when the pedal is released, the tension spring will pull the brake pull plate to rotate around the connection position in the middle of the brake pull plate, thereby resetting the sliding pin along the first kidney-shaped hole and the second kidney-shaped hole; at this time, the brake cable is stretched, the agricultural machinery brakes, the clutch cable retracts, the clutch is released, and the working transmission is disconnected; effectively integrating the brake pedal and the clutch pedal of the agricultural machinery, thereby reducing the situation of misoperation when operating the two pedals with one foot and reducing the operation difficulty and operation threshold.
[0011] As a preference: A first mounting ear is further provided on the side of the support plate connected to the pedal, and a mounting hole is provided on the mounting ear; a first tube is provided on the clutch cable, and the first tube is clamped at the mounting hole of the first mounting ear. One end of the clutch cable passes through the first tube and is connected to the sliding pin; the beneficial effect of this preference is that through the setting of the first tube, on the one hand, it can reduce the wear between the clutch cable and the support plate, and on the other hand, it can play a guiding role, making the stretching and retraction of the clutch cable smoother.
[0012] As a preference: A second mounting ear is provided on the side of the support plate where the tension spring is located, and a second tube is provided on the second mounting ear. One end of the brake cable passes through the second tube and is fixedly connected to the brake pull plate; the beneficial effect of this preference is that through the setting of the second tube, on the one hand, it can reduce the wear between the brake cable and the support plate, and on the other hand, it can play a guiding role, making the stretching and retraction of the brake cable smoother.
[0013] Preferably, a third mounting ear is provided in the middle of the support plate. The third mounting ear is L-shaped. One end of the third mounting ear is fixedly provided on the support plate, and the other end of the third mounting ear is parallel to the support plate. A first waist-shaped hole is also provided at the other end, and the two first waist-shaped holes coincide. The beneficial effect of this preference is that through the setting of the third mounting ear, both ends of the sliding pin are located in the two first waist-shaped holes, making it more stable.
[0014] Preferably, mounting columns are provided on the connecting rod. There are two mounting columns and they are symmetrically arranged on both sides of the connecting rod. There are two sets of clutch pull plates. One end of the two clutch pull plates is rotatably connected in the mounting columns, and the other end of the two clutch pull plates is connected between the two first waist-shaped holes through a sliding pin. The two clutch pull plates are both located between the support plate and the third mounting ear. The beneficial effect of this preference is that the setting of the number and position of the clutch pull plates prevents the sliding pin from shifting during rotation, resulting in better safety and stability.
[0015] The beneficial effects of the present utility model are as follows:
[0016] 1. Integrating the brake and clutch into one pedal reduces the operating components required by the operator and reduces the possibility of incorrect operation of the equipment.
[0017] 2. When the pedal is not depressed, it automatically enters the brake mode and automatically parks, eliminating the problem of vehicle rollback due to forgetting to apply the brake.
[0018] 3. Passively stretching the clutch cable can increase the total cable travel and reduce the problem of clutch slack caused by foot surface fluctuations, which affects the fluctuations during rotation. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a partial schematic diagram of the structure assembly of the integrated brake and clutch pedal for agricultural machinery of the present utility model.
[0020] Figure 2 It is a front view schematic diagram of the integrated brake and clutch pedal structure for agricultural machinery of the present utility model.
[0021] Figure 3 It is an exploded schematic diagram of the integrated brake and clutch pedal structure for agricultural machinery of the present utility model.
[0022] Description of the reference numerals:
[0023] Support plate 1, pedal 2, brake pull plate 3, clutch pull plate 4, clutch cable 5, brake cable 6, tension spring 7, first waist-shaped hole 101, first mounting ear 102, second mounting ear 103, third mounting ear 104, connecting rod 201, mounting column 202, second waist-shaped hole 301, sliding pin 401, first tube 501, second tube 601. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the scope of protection of the present utility model clearer and more definite. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.
[0025] As Figures 1-3 shown:
[0026] A combined brake and clutch pedal structure for agricultural machinery, comprising a support plate 1, on which a pedal 2, a brake pull plate 3, a clutch pull plate 4, a clutch cable 5 and a brake cable 6 are provided. A third mounting ear 104 is provided in the middle of the support plate 1. The third mounting ear 104 is L-shaped. One end of the third mounting ear 104 is welded to the support plate 1, and the other end of the third mounting ear 104 is parallel to the support plate 1. First waist holes 101 that are parallel and coincident with each other are provided in the third mounting ear 104 and the support plate 1.
[0027] During implementation, a connecting rod 201 is provided on the left side of the pedal 2, and the other end of the connecting rod 201 is hinged to the left end of the support plate 1. Specifically, mounting columns 202 are integrally formed at the upper end of the connecting rod 201. There are two mounting columns 202, symmetrically arranged on both sides of the connecting rod 201. There are two groups of clutch pull plates 4. The upper ends of the two clutch pull plates 4 are rotatably connected inside the mounting columns 202. The other ends of the two clutch pull plates 4 are provided with sliding pins 401, which are slidably connected between the two first waist holes 101 through the sliding pins 401. The two clutch pull plates 4 are both located between the support plate 1 and the third mounting ear 104. Specifically, one end of the clutch cable 5 is fixedly connected to the sliding pin 401, and the other end of the clutch cable 5 is connected to the clutch.
[0028] During implementation, the middle of the brake pull plate 3 is rotatably connected to the upper middle part of the support plate 1 through a pin. A second waist hole 301 opposite to the first waist hole 101 is provided at the first end of the brake pull plate 3, that is, the left end of the brake pull plate 3. The sliding pin 401 passes through the first waist hole 101 and the second waist hole 301 and can slide along the first waist hole 101 and the second waist hole 301. A tension spring 7 is fixedly provided at the other end of the support plate 1, and the other end of the tension spring 7 is fixedly connected to the second end (the right end of the brake pull plate 3) of the brake pull plate 3. One end of the brake cable 6 is connected to the first end (the left end of the brake pull plate 3) of the brake pull plate 3.
[0029] During implementation, as Figure 2 and Figure 3, a first mounting ear 102 is further provided on the left side of the support plate 1, and a mounting hole is provided on the mounting ear 102; a first tube 501 is sleeved on the clutch cable 5, and the first tube 501 is clamped at the mounting hole of the first mounting ear 102, and one end of the clutch cable 5 passes through the first tube 501 and is connected to the sliding pin 401; a second mounting ear 103 is integrally formed or welded at the right end of the support plate 1, and a second tube 601 is clamped on the second mounting ear 103, and one end of the brake cable 6 passes through the second tube 601 and is fixedly connected to the left end of the brake pull plate 3.
[0030] The basic principle of this solution is that after all the components of this mechanism are assembled, the connecting rod 201 on the pedal 2 can rotate around the connecting position on the support plate 1, and at the same time, the sliding pin 401 passing through the clutch pull plate 4 can slide along the first waist-shaped hole 101 and the second waist-shaped hole 301, so as to stretch the clutch cable 5 and retract the brake cable 6 installed on the sliding pin 401. At this time, the brake cable 6 retracts, and the brake of the agricultural machinery is released; the clutch cable 5 of the agricultural machinery is stretched, the clutch is engaged, and the working transmission is started. The function of the tension spring 7 is that when the pedal 2 is released, the tension spring 7 will pull the brake pull plate 3 to rotate around the connecting position in the middle of the brake pull plate 3, so as to reset the sliding pin 401 along the first waist-shaped hole 101 and the second waist-shaped hole 301; at this time, the brake cable 6 is stretched, the agricultural machinery brakes, the clutch cable 5 retracts, the clutch is released, and the working transmission is disconnected; effectively integrates the brake pedal and the clutch pedal of the agricultural machinery, thereby reducing the situation of misoperation when operating two pedals with one foot, and reducing the operation difficulty and operation threshold
[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A brake and clutch integrated pedal structure for agricultural machinery, characterized by: The invention comprises a support plate (1), on which a pedal (2), a brake plate (3), a clutch plate (4), a clutch cable (5) and a brake cable (6) are arranged, wherein the pedal (2) is hinged to one end of the support plate (1) via a connecting rod (201) thereon; a first waist hole (101) is arranged in the middle of the support plate (1); the middle of the brake plate (3) is rotatably connected to the middle and upper part of the support plate (1); a second waist hole (301) is arranged opposite to the first waist hole (101) at the first end of the brake plate (3); the clutch plate (4) is hinged to one end of the support plate (1) via a connecting rod (201) thereon; a first waist hole (101) is arranged in the middle of the support plate (1); the middle of the brake plate (3) is rotatably connected to the middle and upper part of the support plate (1); a second waist hole (301) is arranged opposite to the first waist hole (101) at the first end of the brake plate (3); One end of the plate (4) is hinged to the connecting rod (201), and the other end of the clutch pull plate (4) is provided with a sliding pin (401), which passes through the first waist hole (101) and the second waist hole (301) and can slide along the first waist hole (101) and the second waist hole (301); the other end of the support plate (1) is provided with a tension spring (7), and the other end of the tension spring (7) is fixedly connected to the second end of the brake pull plate (3), one end of the clutch cable (5) is fixedly connected to the sliding pin (401), and one end of the brake cable (6) is connected to the first end of the brake pull plate (3).
2. The agricultural machinery brake and clutch integrated pedal structure according to claim 1, characterized in that: A first mounting ear (102) is further provided on one side of the support plate (1) connected to the pedal (2), and a mounting hole is provided on the mounting ear (102); a first tube (501) is provided on the clutch cable (5), and the first tube (501) is clamped at the mounting hole of the first mounting ear (102); one end of the clutch cable (5) passes through the first tube (501) and is connected to the sliding pin (401).
3. The agricultural machinery brake and clutch integrated pedal structure according to claim 1, characterized in that: The support plate (1) is provided with a second mounting ear (103) on the side where the tension spring (7) is located, and a second tube (601) is provided on the second mounting ear (103). One end of the brake cable (6) passes through the second tube (601) and is fixedly connected to the brake plate (3).
4. The agricultural machinery brake and clutch integrated pedal structure according to claim 1, characterized in that: A third mounting ear (104) is provided in the middle of the support plate (1), and the third mounting ear (104) is L-shaped. One end of the third mounting ear (104) is fixedly provided on the support plate (1), and the other end of the third mounting ear (104) is parallel to the support plate (1), and a first waist hole (101) is also provided on the other end, and the two first waist holes (101) overlap.
5. The agricultural machinery brake and clutch integrated pedal structure according to claim 4, characterized in that: A mounting post (202) is provided on the connecting rod (201), and the mounting posts (202) are two and symmetrically arranged on both sides of the connecting rod (201). There are two groups of clutch pull plates (4), one end of the two clutch pull plates (4) is rotatably connected to the mounting post (202), and the other end of the two clutch pull plates (4) is connected between the two first waist holes (101) through a sliding pin (401). The two clutch pull plates (4) are both located between the support plate (1) and the third mounting ear (104).