Elastic power-assisted clutch pedal assembly

Abstract

An elastic boosting clutch pedal assembly comprises a pedal support, a pedal assembly body, a boosting part, a tension spring and a clutch pull rod assembly. The pedal assembly and the boosting assembly are hinged to the support and movably connected, and the two ends of the tension spring are connected with the pedal assembly and the boosting assembly respectively; the other end of the clutch pull rod assembly is connected to a clutch; the tension spring is pre-stretched, so that the pedal assembly and the power assisting assembly generate rotating torque; when the pedal assembly is treaded, the rotating torque of the power assisting assembly is transmitted to the pedal assembly and drives the clutch to be separated through the clutch pull rod assembly after being overlapped with the rotating torque of the pedal assembly, and the power assisting device has the advantages of being simple in structure, high in power assisting efficiency, low in cost and easy to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery equipment, in particular to an elastic power-assisted clutch pedal assembly. Background Art

[0002] Agricultural machinery needs to change gears frequently during operation, so the clutch pedal needs to be stepped on frequently; as the power of agricultural machinery continues to increase, the driving force required for clutch operation is getting greater and greater, so the force required to step on the clutch pedal to overcome the resistance in the clutch action stage is also getting greater and greater. Frequent and strong stepping on the clutch pedal can easily cause fatigue to agricultural machinery operators and reduce work efficiency. Therefore, it is necessary to use an external power assist system to reduce the force of stepping on the clutch pedal.

[0003] The Chinese invention patent with application number 201810173007.1 discloses a clutch pedal booster mechanism and a tractor. In the clutch pedal booster mechanism of the invention, two booster elastic components are provided. The first booster elastic component applies a return force to the rotating arm, and the second booster elastic component assists the pedal. Therefore, its structure is relatively complex and the production cost is relatively high.

[0004] The Chinese utility model patent with application number 202323475783.2 discloses an air-assisted clutch pedal structure and assembly. In the air-assisted clutch pedal structure of the utility model, only one air-assisted elastic assembly is provided to realize clutch pedal pedal assist and automatic return. Its overall structure is relatively simple, but due to the high cost of the air-assisted elastic assembly and the need to regularly check the gas pressure in the air-assisted elastic assembly, the overall use cost is still relatively high. Utility Model Content

[0005] In order to overcome the deficiencies in the background technology, the utility model discloses an elastic power-assisted clutch pedal assembly, which realizes clutch pedal pedal power assistance and automatic return by setting a tension spring, thereby achieving the purpose of reducing product costs.

[0006] In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme: an elastic power-assisted clutch pedal assembly, including a pedal bracket, a pedal assembly, a power-assisting member, a tension spring, and a clutch pull rod assembly; the pedal bracket includes a bottom plate and a side plate, and the side plate is fixedly connected to the bottom plate; one end of the clutch pull rod assembly is hingedly connected to the pedal assembly, and the other end is connected to the clutch; the pedal assembly and the power-assisting assembly are respectively hingedly connected to the side plates, and the pedal assembly and the power-assisting assembly are movably connected, and the two ends of the tension spring are respectively connected to the pedal assembly and the power-assisting assembly, and the tension spring is provided with pre-stretching;

[0007] The pre - stretching of the tension spring generates rotational torques on both the pedal assembly and the boosting assembly. When the pedal assembly is stepped on, the rotational torque of the boosting assembly is transmitted to the pedal assembly through the movable connection between the pedal assembly and the boosting assembly, and after being superimposed with the rotational torque of the pedal assembly, it drives the clutch to disengage through the clutch pull rod assembly.

[0008] Further, the pedal assembly includes a hinge sleeve module; the hinge sleeve module includes a hinge sleeve, a hinge sleeve boosting plate, and a connecting plate. The hinge sleeve boosting plate and the connecting plate are fixedly arranged on the outer cylindrical surface of the hinge sleeve; the hinge sleeve boosting plate is meshed and connected with the boosting member through gear teeth.

[0009] Preferably, the pedal assembly includes a hinge sleeve module; the hinge sleeve module includes a hinge sleeve, a hinge sleeve boosting plate, and a connecting plate. The hinge sleeve boosting plate and the connecting plate are fixedly arranged on the outer cylindrical surface of the hinge sleeve; the boosting member and the hinge sleeve boosting plate are respectively provided with a sliding head and a sliding groove, and the boosting member and the hinge sleeve boosting plate are movably connected through the sliding head and the sliding groove.

[0010] Preferably, the pedal assembly includes a hinge sleeve module; the hinge sleeve module includes a hinge sleeve, a hinge sleeve boosting plate, and a connecting plate. The hinge sleeve boosting plate and the connecting plate are fixedly arranged on the outer cylindrical surface of the hinge sleeve; the boosting member and the hinge sleeve boosting plate are hingedly connected through a boosting connecting rod.

[0011] Further, the hinge sleeve boosting plate is hingedly connected with a tension spring connecting plate, and the tension spring connecting plate is connected with one end of the tension spring.

[0012] Further, the position of the connection point of the tension spring with the boosting member is located outside the connecting line of the hinge points of the boosting member, the pedal assembly and the side plate; the position of the connection point of the tension spring with the tension spring connecting plate is located inside the connecting line of the hinge points of the boosting member, the pedal assembly and the side plate.

[0013] Preferably, the hinge sleeve boosting plate is fixedly provided with a spring hanging post or a tension spring hole, and the spring hanging post or the tension spring hole is connected with one end of the tension spring.

[0014] Further, the positions of the connection points of the tension spring with the boosting member and the hinge sleeve boosting plate are both located outside the connecting line of the hinge points of the boosting member, the pedal assembly and the side plate.

[0015] Further, the clutch pull rod assembly is hingedly connected with the connecting plate; the pedal assembly further includes a pedal connecting rod combination, and the pedal connecting rod combination is adjustably connected with the connecting plate through a pedal connecting rod adjusting block; or the pedal connecting rod combination is directly fixedly connected with the hinge sleeve by welding.

[0016] Further, a limit sensor is fixedly arranged on the pedal bracket.

[0017] Due to the adoption of the technical solution described above, the utility model has the following beneficial effects: An elastic assist clutch pedal assembly disclosed by the utility model includes a pedal bracket, a pedal assembly, an assist member, a tension spring, and a clutch pull rod assembly; one end of the clutch pull rod assembly is hingedly connected to the pedal assembly, and the other end is connected to the clutch; the pedal assembly and the assist assembly are respectively hingedly connected to the bracket, and the pedal assembly and the assist assembly are movably connected. The two ends of the tension spring are respectively connected to the pedal assembly and the assist assembly; the tension spring is pre-stretched, so that both the pedal assembly and the assist assembly generate rotational torques; when the pedal assembly is stepped on, the rotational torque of the assist assembly is transmitted to the pedal assembly, and after being superimposed with the rotational torque of the pedal assembly, the clutch is driven to disengage through the clutch pull rod assembly. Therefore, it has the advantages of simple structure, high assist efficiency, low cost, and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Appearance of the elastic assist clutch pedal assembly for Embodiment 1 Figure 1 ;

[0019] Figure 2 Appearance of the elastic assist clutch pedal assembly for Embodiment 1 Figure 2 ;

[0020] Figure 3 Schematic diagram of the appearance of the pedal bracket for Embodiment 1;

[0021] Figure 4 Schematic diagram of the appearance of the pedal assembly for Embodiment 1 Figure 1 ;

[0022] Figure 5 Schematic diagram of the appearance of the pedal assembly for Embodiment 1 Figure 2 ;

[0023] Figure 6 Schematic diagram of the appearance of the hinge sleeve module for Embodiment 1 Figure 1 ;

[0024] Figure 7 Schematic diagram of the appearance of the hinge sleeve module for Embodiment 1 Figure 2 ;

[0025] Figure 8 Schematic diagram of the appearance of the pedal link combination;

[0026] Figure 9 Schematic diagram of the appearance of the pedal link adjustment block;

[0027] Figure 10 Schematic diagram of the appearance of the tension spring connecting plate for Embodiment 1;

[0028] Figure 11 Schematic diagram of the appearance of the assist tooth plate assembly for Embodiment 1;

[0029] Figure 12 It is a schematic diagram of the appearance of the clutch pull rod assembly;

[0030] Figure 13 It is a schematic sectional structure diagram of the elastic assist clutch pedal assembly of Embodiment 1;

[0031] Figure 14 It is a schematic diagram of the force analysis of the elastic assist clutch pedal assembly of Embodiment 1 in the initial state;

[0032] Figure 15 It is a schematic diagram of the force analysis of the elastic assist clutch pedal assembly of Embodiment 1 in the intermediate state during the action process;

[0033] Figure 16 It is a schematic diagram of the force analysis of the elastic assist clutch pedal assembly of Embodiment 1 at the end state of the action;

[0034] Figure 17 It is a schematic diagram of the connection structure of the assist tooth plate assembly and the pedal assembly of Embodiment 2;

[0035] Figure 18 It is a schematic diagram of the connection structure of the assist tooth plate assembly and the pedal assembly of Embodiment 3;

[0036] Figure 19 It is the appearance of the elastic assist clutch pedal assembly of Embodiment 4 Figure 1 .

[0037] In the figure: 1. Pedal bracket; 1.1. Bottom plate; 1.2. Side plate; 1.2.1. Assist tooth plate hinge hole; 1.2.2. Pedal assembly hinge hole; 1.2.3. Limit sensor bracket; 2. Pedal assembly; 2.1. Hinge sleeve module; 2.1.1. Hinge sleeve; 2.1.2. Hinge sleeve assist plate; 2.1.2.1. Tooth; 2.1.2.2. Spring connecting plate hinge hole; 2.1.3. Connecting plate; 2.1.3.1. Adjusting tooth; 2.1.3.2. Adjusting slot; 2.1.3.3. Pull rod hinge hole; 2.1.4. Limit plate; 2.2. Pedal link combination; 2.2.1. Pedal link; 2.2.1.1. Pedal link hole; 2.2.2. Clutch pedal; 2.3. Pedal link adjusting block; 2.3.1. Adjusting block tooth; 2.3.2. Adjusting block fixing hole; 2.4. Spring connecting plate; 2.4.1. Hinge hole; 2.4.2. Spring hole; 3. Assist tooth plate assembly; 3.1. Assist tooth plate; 3.2. Assist tooth plate hinge shaft; 3.3. Spring hanging post; 4. Spring; 5. Clutch pull rod assembly; 5.1. Pull rod head; 5.2. Pull rod; 6. Limit sensor; 7. Assist link. Detailed implementation manners

[0038] The present utility model can be explained in detail through the following embodiments. The purpose of disclosing the present utility model is to protect all technical improvements within the scope of the present utility model.

[0039] An elastic assist clutch pedal assembly, see the attached Figure 1 , 2 , 3: It includes a pedal bracket 1, a pedal assembly 2, an assist member, a tension spring 4, and a clutch pull rod assembly 5; the pedal bracket 1 includes a bottom plate 1.1 and side plates 1.2, and the side plates 1.2 are fixedly connected to the bottom plate 1.1; one end of the clutch pull rod assembly 5 is hingedly connected to the pedal assembly 2, and the other end is connected to the clutch; the pedal assembly 2 and the assist assembly are respectively hingedly connected to the side plates 1.2, and the pedal assembly 2 and the assist assembly are movably connected. Both ends of the tension spring 4 are connected to the pedal assembly 2 and the assist assembly respectively, and the tension spring 4 is provided with a pre-tension; the pre-tension of the tension spring 4 causes both the pedal assembly 2 and the assist assembly to generate a rotational torque. When stepping on the pedal assembly 2, the rotational torque of the assist assembly is transmitted to the pedal assembly 2 through the movable connection between the pedal assembly 2 and the assist assembly, and after being superimposed with the rotational torque of the pedal assembly 2, it drives the clutch to disengage through the clutch pull rod assembly 5. Therefore, it has the advantages of simple structure, high assist efficiency, low cost, and easy maintenance.

[0040] Furthermore, see the attached Figure 4 , 5 : The pedal assembly 2 includes a hinge sleeve module 2.1; the hinge sleeve module 2.1 includes a hinge sleeve 2.1.1, a hinge sleeve assist plate 2.1.2, and a connecting plate 2.1.3. The hinge sleeve assist plate 2.1.2 and the connecting plate 2.1.3 are fixedly arranged on the outer circumferential surface of the hinge sleeve 2.1.1 by welding; both the hinge sleeve assist plate 2.1.2 and the assist member are provided with gear teeth, and the rotational torque of the assist member is transmitted to the pedal assembly 2 through gear tooth meshing connection.

[0041] Preferably, see the attached Figure 17 : The pedal assembly 2 includes a hinge sleeve module 2.1; the hinge sleeve module 2.1 includes a hinge sleeve 2.1.1, a hinge sleeve assist plate 2.1.2, and a connecting plate 2.1.3. The hinge sleeve assist plate 2.1.2 and the connecting plate 2.1.3 are fixedly arranged on the outer circumferential surface of the hinge sleeve 2.1.1 by welding; in this preferred technical solution, the assist member and the hinge sleeve assist plate 2.1.2 are respectively provided with a sliding head and a sliding groove, and the assist member and the hinge sleeve assist plate 2.1.2 are movably connected through the sliding head and the sliding groove, and the rotational torque of the assist member is transmitted to the pedal assembly 2.

[0042] Preferably, see the attached Figure 18: The pedal assembly 2 includes a hinge sleeve module 2.1; the hinge sleeve module 2.1 includes a hinge sleeve 2.1.1, a hinge sleeve assist plate 2.1.2, and a connecting plate 2.1.3. The hinge sleeve assist plate 2.1.2 and the connecting plate 2.1.3 are fixedly arranged on the outer circumferential surface of the hinge sleeve 2.1.1; in this preferred technical solution, the assist member and the hinge sleeve assist plate 2.1.2 are hingedly connected through an assist link 8 to transmit the rotational torque of the assist member to the pedal assembly 2.

[0043] Furthermore, the hinge sleeve assist plate 2.1.2 is hingedly connected with a tension spring connecting plate 2.4. One end of the tension spring 4 is connected to the tension spring connecting plate 2.4. The tension of the tension spring 4 acts on the pedal assembly 2 through the tension spring connecting plate 2.4; the structure of connecting the tension spring 4 with the tension spring connecting plate 2.4 can avoid the interference problem between the tension spring 4 and the hinge sleeve 2.1.1 when the tension spring 4 is internally arranged (the tension spring 4 is arranged inside the two side plates 1.2); the internal structure of the tension spring 4 can prevent the problem that the tension spring 4 falls off accidentally when the elastic assist clutch pedal assembly is in use and touches the tension spring 4 by accident.

[0044] Furthermore, when the internal structure of the tension spring 4 is adopted, the connection point position of the tension spring 4 and the assist member is located outside the connection line of the hinge points of the assist member, the pedal assembly 2 and the side plate 1.2; the connection point position of the tension spring 4 and the tension spring connecting plate 2.4 is located inside the connection line of the hinge points of the assist member, the pedal assembly 2 and the side plate 1.2.

[0045] Preferably, refer to the attached drawings of the specification Figure 19 : A spring hanging post 3.3 or a tension spring hole is fixedly arranged on the hinge sleeve assist plate 2.1.2. One end of the tension spring 4 is connected to the spring hanging post 3.3 or the tension spring hole; when the hinge sleeve assist plate 2.1.2 adopts the structure of connecting the tension spring 4 with the spring hanging post 3.3 or the tension spring hole, the tension spring 4 can be externally arranged (the tension spring 4 is arranged outside the two side plates 1.2) to avoid interference with the hinge sleeve 2.1.1. This structure can omit the tension spring connecting plate 2.4 and simplify the overall structure of the elastic assist clutch pedal assembly; in the attached drawings of the specification Figure 19 In, the spring hanging post 3.3 is an independent structural member, but the hinge sleeve assist plate 2.1.2 can adopt a stamping structural member, and the spring hanging post 3.3 is formed by stamping to omit the spring hanging post 3.3.

[0046] Furthermore, when the external structure of the tension spring 4 is adopted, the connection point positions of the tension spring 4 with the assist member and the hinge sleeve assist plate 2.1.2 are both located outside the connection line of the hinge points of the assist member, the pedal assembly 2 and the side plate 1.2.

[0047] Furthermore, the clutch pull rod assembly 5 is hingedly connected to the connecting plate 2.1.3; the pedal assembly 2 further includes a pedal link assembly 2.2, and the pedal link assembly 2.2 is adjustably connected to the connecting plate 2.1.3 through a pedal link adjustment block 2.3. The agricultural machinery driver can adjust the pedal link assembly 2.2 to the optimal position according to personal needs, making it more comfortable when stepping on the clutch pedal 2.2.2; in addition, the pedal link assembly 2.2 can also be directly fixedly arranged on the outer cylindrical surface of the hinge sleeve 2.1.1 by welding, thereby simplifying the connection structure between the pedal link assembly 2.2 and the hinge sleeve 2.1.1 and the structure of the connecting plate 2.1.3.

[0048] Furthermore, a limit sensor 6 is fixedly arranged on the pedal bracket 1. On the one hand, the limit sensor 6 can limit the position of the pedal assembly 2 when it returns, and on the other hand, it can also detect the return signal of the pedal assembly 2. Embodiment 1:

[0049] See the attached instructions Figure 1 、 2 : An elastic assist clutch pedal assembly, including a pedal bracket 1, a pedal assembly 2, an assist member, a tension spring 4, a clutch pull rod assembly 5, and a limit sensor 6; in this embodiment, the tension spring 4 adopts an internal structure, and the assist member adopts an assist toothed plate assembly 3;

[0050] See the attached instructions Figure 3 : The pedal bracket 1 includes a bottom plate 1.1 and side plates 1.2. There are two side plates 1.2, which are fixedly arranged in parallel on the bottom plate 1.1 by welding. The side plates 1.2 are provided with a toothed plate hinge hole 1.2.1 for the assist and a pedal assembly hinge hole 1.2.2; among them, the right side plate 1.2 is also provided with a limit sensor bracket 1.2.3;

[0051] See the attached instructions Figure 4 、 5 : The pedal assembly 2 includes a hinge sleeve module 2.1, a pedal link assembly 2.2, a pedal link adjustment block 2.3, and a tension spring connecting plate 2.4; see the attached instructions Figure 6 、 7: The articulated sleeve module 2.1 includes an articulated sleeve 2.1.1, an articulated sleeve assist plate 2.1.2, and a connecting plate 2.1.3; the articulated sleeve 2.1.1 is a short circular tube, on the outer circular surface of which a limiting plate 2.1.4 is fixedly arranged, and the articulated sleeve 2.1.1 is articulated between two side plates 1.2 of the pedal bracket 1; the articulated sleeve assist plate 2.1.2 is plate-shaped, one end of which is provided with teeth 2.1.2.1, and the other end is provided with a spring connecting plate hinge hole 2.1.2.2. There are two articulated sleeve assist plates 2.1.2, which are symmetrically welded on the outer circular surfaces at both ends of the articulated sleeve 2.1.1; the connecting plate 2.1.3 is arc-shaped, fixedly welded on the middle outer circular surface of the articulated sleeve 2.1.1, and on the surface of the connecting plate 2.1.3, there are adjustment teeth 2.1.3.1, an adjustment groove 2.1.3.2, and a pull rod hinge hole 2.1.3.3, and the adjustment teeth 2.1.3.1 and the adjustment groove 2.1.3.2 are adjacent to each other; see the attached instructions Figure 8 : The pedal link assembly 2.2 includes a pedal link 2.2.1 and a clutch pedal 2.2.2. The clutch pedal 2.2.2 is fixedly welded to one end of the pedal link 2.2.1, and the other end of the pedal link 2.2.1 is provided with three pedal link holes 2.2.1.1; see the attached instructions Figure 9 : On the pedal link adjustment block 2.3, there are adjustment block teeth 2.3.1 and an adjustment block fixing hole 2.3.2; the pedal link assembly 2.2 and the connecting plate 2.1.3 are connected by bolts, the pedal link adjustment block 2.3 and the pedal link assembly 2.2 are connected by bolts, and the adjustment teeth 2.1.3.1 of the connecting plate 2.1.3 mesh with the adjustment block teeth 2.3.1 of the pedal link adjustment block 2.3 to adjust and limit the connection position between the pedal link assembly 2.2 and the articulated sleeve module 2.1; see the attached instructions Figure 10 : The spring connecting plate 2.4 is arc-shaped, one end of which is provided with a hinge hole 2.4.1, and the other end is provided with a spring hole 2.4.2. The spring connecting plate 2.4 is hingedly connected to the articulated sleeve assist plate 2.1.2, and the inner arc of the spring connecting plate 2.4 corresponds to the outer circular surface of the articulated sleeve 2.1.1;

[0052] See the attached instructions Figure 11 : The assist tooth plate assembly 3 includes an assist tooth plate 3.1, an assist tooth plate hinge shaft 3.2, and a spring hanging post 3.3; the assist tooth plate 3.1 is plate-shaped, the spring hanging post 3.3 is arranged at the upper end, the assist tooth plate hinge shaft 3.2 is arranged in the middle, and teeth 3.1.1 are provided on the lower end face; the assist tooth plate assembly 3 is articulated on the pedal bracket 1 through the cooperation of the assist tooth plate hinge shaft 3.2 and the assist tooth plate hinge hole 1.2.1 of the side plate 1.2; the assist tooth plate 3.1 is connected to the articulated sleeve assist plate 2.1.2 of the pedal assembly 2 through tooth meshing;

[0053] See the attached instructions Figure 13One end of the tension spring 4 is hung on the spring hanging post 3.3 of the assisting tooth plate assembly 3, and the other end is hung in the tension spring hole 2.4.2 of the tension spring connecting plate 2.4. The connection point position of the tension spring 4 and the assisting tooth plate assembly 3 is located outside the connecting line of the hinge points of the assisting tooth plate assembly 3, the pedal assembly 2 and the side plate 1.2; the connection point position of the tension spring 4 and the tension spring connecting plate 2.4 is located inside the connecting line of the hinge points of the assisting member, the pedal assembly 2 and the side plate 1.2; the tension spring 4 is provided with pre-tension.

[0054] See the attached instruction manual Figure 12 The clutch pull rod assembly 5 includes a pull rod head 5.1 and a pull rod 5.2. An articulated hole is provided at the upper end of the pull rod head 5.1, and it is articulated and connected to the pull rod articulated hole 2.1.3.3 of the connecting plate 2.1.3 in the pedal assembly 2; the pull rod 5.2 is arranged at the lower end of the pull rod head 5.1 through a thread, and the other end of the pull rod 5.2 is connected to the clutch.

[0055] The limit sensor 6 adopts a proximity switch and is fixedly arranged on the limit sensor bracket 1.2.3 of the pedal bracket 1 through a nut. The working end of the limit sensor 6 corresponds to the limit plate 2.1.4 on the pedal assembly 2.

[0056] The working principle of the elastic assisting clutch pedal assembly is specifically analyzed as follows: When the elastic assisting clutch pedal assembly works, it is divided into an idle stroke section and an assisting stroke section;

[0057] See the attached instruction manual Figure 14 This attached drawing specifically shows the force condition of the elastic assisting clutch pedal assembly in the idle stroke section; in the idle stroke section, the inner arc of the tension spring connecting plate 2.4 closely adheres to the outer circular surface of the articulated sleeve 2.1.1; the distance between the center line L of the tension spring 4 and the articulated axis of the pedal assembly 2 is L1, and the distance from the articulated axis of the assisting tooth plate assembly 3 is L2, and L2 > L1; the pulling force of the tension spring 4 acts on the pedal assembly 2 through the tension spring connecting plate 2.4 and acts on the assisting tooth plate assembly 3 through the spring hanging post 3.3. A clockwise torque M1 (M1 = F1 * L1) is generated on the pedal assembly 2, and a clockwise torque M2 (M2 = F2 * L2, F1 and F2 are equal in magnitude and opposite in direction) is generated on the assisting tooth plate assembly 3. Since L2 > L1, M2 > M1, and the assisting tooth plate assembly 3 offsets M1 through meshing, and the remaining torque M2 - M1 drives the pedal assembly 2 to have a tendency to rotate counterclockwise. At this time, the elastic assistance provided by the elastic assisting clutch pedal assembly is negative, keeping the pedal assembly 2 in the initial state position; in the idle stroke section, since M2 and M1 offset each other partially, the remaining torque M2 - M1 that drives the pedal assembly 2 to maintain the initial state is small. Therefore, only a small stepping force is required to drive the pedal assembly 2 out of the idle stroke section, and the stepping force that drives the pedal assembly 2 in the idle stroke section gradually decreases.

[0058] See the attached instruction manual Figure 15: The figure specifically shows the state of the elastic power-assisted clutch pedal assembly at the end of the idle stroke section, which is the transition point between the idle stroke section and the power-assisted stroke section; in this state, the center line of the tension spring 4 coincides with the hinge axis of the pedal assembly 2 and the hinge axis of the power-assisted toothed plate assembly 3 (L1=L2=0), or the center line of the tension spring 4 is equal to the distance from the hinge axis of the pedal assembly 2 and the distance from the hinge axis of the power-assisted toothed plate assembly 3 (i.e., L1=L2), so M2 and M1 are both zero or equal in size, so the pedaling force at the transition point is extremely small; the elastic power-assisted clutch pedal assembly enters the power-assisted stroke section after crossing the transition point;

[0059] See the instruction manual Figure 16 : The accompanying drawing specifically shows the working condition of the elastic power-assisted clutch pedal assembly after entering the power-assisted stroke section; after the elastic power-assisted clutch pedal assembly passes the transition point, the pedal assembly 2 continues to rotate around the axis of the hinge sleeve 2.1.1 under the action of the pedal force, and the center line of the tension spring 4 is separated from the hinge axis of the pedal assembly 2 and the hinge axis of the power-assisted toothed plate assembly 3, and the distance increases with the increase of the rotation angle of the pedal assembly 2, and at the same time, the connection point position of the tension spring 4 and the power-assisted toothed plate assembly 3 passes the center line of the tension spring 4; at this time, the torque M2 on the power-assisted toothed plate assembly 3 becomes counterclockwise, and the torque M2 of the power-assisted toothed plate assembly 3 is transmitted to the pedal assembly 2 through the gear meshing, and is superimposed with the clockwise torque M1 of the pedal assembly 2 to form a larger torque to drive the pedal assembly 2 to rotate clockwise, and the superimposed torque increases with the increase of the rotation angle of the pedal assembly 2 (the pedaling depth of the clutch pedal 2.2.2), thereby greatly reducing the force of the agricultural machinery operator in the process of stepping on the clutch pedal 2.2.2, and reducing the labor intensity of the agricultural machinery operator who frequently steps on the clutch pedal 2.2.2. Embodiment 2:

[0060] See the instruction manual Figure 17 : In this embodiment, a slider and a slide groove are respectively provided on the power-assisting member and the articulated sleeve power-assisting plate 2.1.2. The slider of the power-assisting member is movably arranged in the slide groove of the articulated sleeve power-assisting plate 2.1.2 to realize the active transmission connection between the power-assisting member and the articulated sleeve power-assisting plate 2.1.2; In this embodiment, the working principle of the elastic power-assisting clutch pedal assembly is the same as that in Embodiment 1 and will not be repeated. Embodiment three:

[0061] See the instruction manual Figure 18 : In this embodiment, the power-assisting member and the articulated sleeve power-assisting plate 2.1.2 are hingedly connected through the power-assisting connecting rod 8, and the active transmission connection between the power-assisting member and the articulated sleeve power-assisting plate 2.1.2 is realized through the power-assisting connecting rod 8; in this embodiment, the working principle of the elastic power-assisting clutch pedal assembly is the same as that in embodiment 1 and will not be repeated. Embodiment 4:

[0062] See the instruction manualFigure 19 : In this embodiment, the tension spring 4 is arranged outside the side plate 1.2; the spring hanging post 3.3 or the tension spring hole is fixedly arranged on the hinge sleeve assist plate 2.1.2. One end of the tension spring 4 is connected to the spring hanging post 3.3 on the hinge sleeve assist plate 2.1.2 or in the tension spring hole, and the other end is connected to the spring hanging post 3.3 of the assist tooth plate assembly 3. Therefore, the tension spring connecting plate 2.4 in the first embodiment is omitted; the connection points of the tension spring 4 with the assist member and the hinge sleeve assist plate 2.1.2 are both located outside the connection line of the hinge points of the assist member, the pedal assembly 2 and the side plate 1.2. In this embodiment, the working principle of the elastic assist clutch pedal assembly is the same as that of the first embodiment, and will not be elaborated here. Embodiment Five:

[0063] In this embodiment, the pedal link combination 2.2 is directly fixedly arranged on the outer cylindrical surface of the hinge sleeve 2.1.1 by welding; therefore, in this embodiment, the pedal link adjustment block 2.3 is omitted, and at the same time, the structure of the connection plate 2.1.3 is also simplified, and only the pull rod hinge hole 2.1.3.3 needs to be retained, and the adjustment gear teeth 2.1.3.1 and the adjustment groove 2.1.3.2 are cancelled.

[0064] In the above embodiments, two assist components, hinge sleeve assist plates 2.1.2, and tension springs 4 are symmetrically arranged; to further simplify the structure of the elastic assist clutch pedal assembly and reduce costs, one assist component, hinge sleeve assist plate 2.1.2, and tension spring 4 can also be arranged, and the function of the elastic assist clutch pedal assembly can also be realized.

[0065] The parts not elaborated in the present utility model are the prior art.

Claims

1. An elastic assist clutch pedal assembly, comprising a pedal bracket (1), a pedal assembly (2), an assist member, a tension spring (4), and a clutch pull rod assembly (5); the pedal bracket (1) includes a bottom plate (1.1) and side plates (1.2), and the side plates (1.2) are fixedly connected to the bottom plate (1.1); one end of the clutch pull rod assembly (5) is hinged to the pedal assembly (2), and the other end is connected to the clutch; characterized in that: The pedal assembly (2) and the boosting assembly are respectively hinged to the side plate (1.2). The pedal assembly (2) and the boosting assembly are movably connected. Both ends of the tension spring (4) are connected to the pedal assembly (2) and the boosting assembly respectively, and the tension spring (4) is pre-stretched. The pre-stretching of the tension spring (4) generates rotational torques on both the pedal assembly (2) and the boosting assembly. When the pedal assembly (2) is stepped on, the rotational torque of the boosting assembly is transmitted to the pedal assembly (2) through the movable connection between the pedal assembly (2) and the boosting assembly. After being superimposed with the rotational torque of the pedal assembly (2), it drives the clutch to disengage through the clutch pull rod assembly (5).

2. The elastic assist clutch pedal assembly according to claim 1, wherein: The pedal assembly (2) includes a hinge sleeve module (2.1); the hinge sleeve module (2.1) includes a hinge sleeve (2.1.1), a hinge sleeve boosting plate (2.1.2), and a connecting plate (2.1.3). The hinge sleeve boosting plate (2.1.2) and the connecting plate (2.1.3) are fixedly arranged on the outer circumferential surface of the hinge sleeve (2.1.1); the hinge sleeve boosting plate (2.1.2) is meshed and connected with the boosting member through gear teeth.

3. The elastic assist clutch pedal assembly according to claim 1, characterized in that: The pedal assembly (2) includes a hinge sleeve module (2.1); the hinge sleeve module (2.1) includes a hinge sleeve (2.1.1), a hinge sleeve boosting plate (2.1.2), and a connecting plate (2.1.3). The hinge sleeve boosting plate (2.1.2) and the connecting plate (2.1.3) are fixedly arranged on the outer circumferential surface of the hinge sleeve (2.1.1); the boosting member and the hinge sleeve boosting plate (2.1.2) are respectively provided with a sliding head and a sliding groove, and the boosting member and the hinge sleeve boosting plate (2.1.2) are movably connected through the sliding head and the sliding groove.

4. The elastic assist clutch pedal assembly according to claim 1, characterized in that: The pedal assembly (2) includes a hinge sleeve module (2.1); the hinge sleeve module (2.1) includes a hinge sleeve (2.1.1), a hinge sleeve boosting plate (2.1.2), and a connecting plate (2.1.3). The hinge sleeve boosting plate (2.1.2) and the connecting plate (2.1.3) are fixedly arranged on the outer circumferential surface of the hinge sleeve (2.1.1); the boosting member and the hinge sleeve boosting plate (2.1.2) are hingedly connected through a boosting link (8).

5. The elastic assist clutch pedal assembly according to claim 2 or 3 or 4, characterized in that: The hinge sleeve boosting plate (2.1.2) is hingedly connected with a tension spring connecting plate (2.4), and the tension spring connecting plate (2.4) is connected with one end of the tension spring (4).

6. The elastic assist clutch pedal assembly according to claim 5, characterized in that: The position of the connection point of the tension spring (4) and the boosting member is located outside the connection line of the hinge points of the boosting member, the pedal assembly (2) and the side plate (1.2); the position of the connection point of the tension spring (4) and the tension spring connecting plate (2.4) is located inside the connection line of the hinge points of the boosting member, the pedal assembly (2) and the side plate (1.2).

7. The elastic assist clutch pedal assembly according to claim 2 or 3 or 4, characterized in that: The hinge sleeve boosting plate (2.1.2) is fixedly provided with a spring hanging post (3.3) or a tension spring hole, and the spring hanging post (3.3) or the tension spring hole is connected with one end of the tension spring (4).

8. The elastic assist clutch pedal assembly according to claim 7, characterized in that: The positions of the connection points of the tension spring (4) with the boosting member and the hinge sleeve boosting plate (2.1.2) are both located outside the connection line of the hinge points of the boosting member, the pedal assembly (2) and the side plate (1.2).

9. The elastic assist clutch pedal assembly according to any one of claims 6 or 8, characterized in that: The clutch pull rod assembly (5) is hingedly connected to the connecting plate (2.1.3); the pedal assembly (2) further includes a pedal link combination (2.2), and the pedal link combination (2.2) is adjustably connected to the connecting plate (2.1.3) through a pedal link adjustment block (2.3); or the pedal link combination (2.2) is directly fixedly connected to the hinge sleeve (2.1.1).

10. The elastic assist clutch pedal assembly according to claim 1, characterized in that: A limit sensor (6) is fixedly arranged on the pedal bracket (1).

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