Clutch drive and harvester

Abstract

The application discloses a clutch driving device and a harvester. The clutch driving device comprises a mounting body, a driving assembly, a rotating assembly and a pull rod assembly. The driving assembly is arranged on the mounting body. A rotating main shaft of the rotating assembly is rotatably arranged on the mounting body. A transmission structure is arranged on the rotating main shaft. The driving assembly drives the transmission structure to rotate. First driving structure, second driving structure and third driving structure are arranged on the rotating main shaft. Each driving structure is cam driving structure. At least one driving structure is provided with the pull rod assembly. A first end of the pull rod assembly is movably arranged on the mounting body and can move under the driving of the driving structure. A second end of the pull rod assembly is connected with a clutch corresponding to the driving structure. The cam driving structure is adopted to replace the groove driving structure, the influence on the structural strength is obviously reduced, and the purpose of facilitating the pulling of heavy load clutch is achieved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of harvesting machines, and particularly relates to a clutch driving device and a harvesting machine. BACKGROUND

[0002] The existing harvesting machine has three working conditions: threshing, harvesting and threshing, and unloading grain, and three clutches are used for control, wherein: in the threshing working condition, the threshing clutch is in the closed state, and the harvesting clutch and the unloading clutch are both in the disconnected state; in the harvesting and threshing working condition, the threshing clutch and the harvesting clutch are both in the closed state, and the unloading clutch is in the disconnected state; in the unloading working condition, the unloading clutch is in the closed state, and the threshing clutch and the harvesting clutch are both in the disconnected state.

[0003] At present, the existing clutch operating device mainly drives the wire to be tensioned or contracted by opening a driving groove on the rotating body, and then controls the closing and disconnection of the clutch. However, the opening of the driving groove on the rotating body greatly affects the structural strength, which is not conducive to pulling the large load clutch. SUMMARY

[0004] In view of the above defects or deficiencies, the present application provides a clutch driving device and a harvesting machine, aiming to solve the technical problem of the structural strength of the existing clutch operating device caused by the opening of the driving groove structure.

[0005] To achieve the above-mentioned purpose, the present application provides a clutch driving device, wherein the clutch driving device comprises a mounting body, a driving assembly, a rotating assembly and a pull rod assembly; the driving assembly is arranged on the mounting body; the rotating assembly comprises a rotating main shaft, the rotating main shaft is rotatably arranged on the mounting body, a transmission structure is arranged on the rotating main shaft, first, second and third driving structures are arranged on the rotating main shaft, and each driving structure is arranged as a cam driving structure; at least one driving structure is provided with a pull rod assembly, the first end of the pull rod assembly is movably arranged on the mounting body and can move under the driving of the driving structure, and the second end is used for connecting the clutch corresponding to the driving structure.

[0006] In the embodiment of the present application, the driving assembly comprises a rotating driving part and a driving gear, the input shaft of the rotating driving part is rotatably arranged on the mounting body and drivingly connected with the driving gear, the transmission structure is arranged as a gear structure meshing with the driving gear, and the outer diameter of the gear structure is greater than the outer diameter of the driving gear.

[0007] In the embodiment of the present application, the rotating assembly further comprises a rotating combination body and a cam combination body which are arranged at intervals on the rotating main shaft, the rotating combination body is provided with a gear structure, and the rotating combination body is provided with one of the first, second and third driving structures on the side away from the gear structure, and the other two kinds of cam driving structures are arranged on the cam combination body in a staggered manner.

[0008] In the embodiment of the present application, the second driving structure is arranged on the side of the rotation assembly away from the gear structure, and the second driving structure comprises a second base circle surface and a second offset circle surface, which are sequentially arranged from inside to outside on the rotation assembly, the second base circle surface is arranged on a first circumference with the rotation center line of the rotation shaft as a center line, and the second offset circle surface is arranged in a convex manner on the outside of the first circumference with a certain offset distance from the rotation center line.

[0009] In the embodiment of the present application, the outer peripheral contour of the cam assembly is sequentially provided with an inner base circle surface, a first offset circle surface, an outer base circle surface and a third offset circle surface in sequence, the inner base circle surface and the outer base circle surface are arranged on opposite sides of the rotation shaft, and the inner base circle surface and the outer base circle surface are respectively arranged on a second circumference and a third circumference with the rotation center line of the rotation shaft as a center line, and the radius of the third circumference is greater than the radius of the second circumference, the first offset circle surface and the third offset circle surface are arranged in a convex manner on the outside of the second circumference, the first offset circle surface, the outer base circle surface and part of the inner base circle surface close to the first offset circle surface form the first driving structure, and the third offset circle surface and part of the inner base circle surface close to the third offset circle surface form the third driving structure.

[0010] In the embodiment of the present application, the number of cam assemblies is two, and the two cam assemblies are arranged on the rotation shaft in a spaced manner and are respectively provided with the first driving structure and the third driving structure.

[0011] In the embodiment of the present application, the rotation assembly further comprises a gear member and three cam members arranged on the rotation shaft in a spaced manner along the axial direction, the gear member forms the gear structure, and the three cam members are respectively provided with the first driving structure, the second driving structure and the third driving structure.

[0012] In the embodiment of the present application, the pull rod assembly comprises a pull rod shaft, a pull wire and a pull plate body, the pull rod shaft is arranged on the first end of the pull plate body and is movably arranged on the mounting body, the outer peripheral contour of the cam driving structure abuts against the pull rod shaft, and the pull wire is arranged on the second end of the pull plate body and is used for being connected with the corresponding clutch.

[0013] In the embodiment of the present application, the number of pull plate bodies is two, the two pull plate bodies are arranged in a relative parallel manner, the pull rod shaft is sequentially arranged on the first ends of the two pull plate bodies, and the cam driving structure can be inserted between the two pull plate bodies, so that the pull rod shaft abuts against the outer peripheral contour of the cam driving structure.

[0014] In the embodiment of the present application, a guide groove is formed on the mounting body for movably arranging the pull rod shaft.

[0015] In the embodiment of the present application, the mounting body comprises two first mounting side plates arranged in relative spacing, the two first mounting side plates are provided with main shaft mounting holes corresponding to the two ends of the rotating main shaft respectively, the transmission structure, the first driving structure, the second driving structure and the third driving structure are arranged between the two first mounting side plates, and the input mounting hole and the guide groove are arranged on the first mounting side plate in spacing.

[0016] In the embodiment of the present application, the mounting body further comprises a second mounting side plate connecting the two first mounting side plates, and the second mounting side plate is provided with a pull rod opening for movably penetrating the pull rod assembly.

[0017] To achieve the above-mentioned purpose, the present application further provides a harvester, wherein the harvester comprises the clutch driving device according to the above.

[0018] Through the above technical solution, the clutch driving device provided by the embodiment of the present application has the following beneficial effects:

[0019] When the above clutch driving device is used, since the mounting body, the driving assembly, the rotating assembly and the pull rod assembly are included, the rotating main shaft in the rotating assembly is rotatably arranged on the mounting body, and the rotating main shaft is provided with the transmission structure, the first driving structure, the second driving structure and the third driving structure, specifically, the first driving structure, the second driving structure and the third driving structure can be sequentially arranged according to the needs of threshing, harvesting and unloading, that is, the rotating main shaft, the transmission structure and the three driving structures are arranged as an integrated rotating structure, and the pull rod assembly connected with the clutch can be moved under the driving of the corresponding driving structure, then the first driving structure, the second driving structure and the third driving structure integrated with the transmission structure can control the pull rod assembly to pull the corresponding clutch to close under different rotating angles through the driving assembly driving the transmission structure to rotate, and the threshing function, the harvesting function and the unloading function are realized respectively, in addition, the cam driving structure is adopted instead of the slot driving structure in the prior art, which obviously reduces the influence on the structure, and achieves the purpose of facilitating the pulling of large load clutch.

[0020] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the present application, but do not constitute a limitation on the present application. In the drawings:

[0022] Figure 1 is a structure schematic view of the clutch driving device in the first embodiment of the present application;

[0023] Figure 2 Fig. 1 is a schematic view of the clutch driving device according to the first embodiment of the present application in a driving mode;

[0024] Figure 3 Fig. 2 is a schematic view of the driving assembly and the rotating assembly according to the first embodiment of the present application;

[0025] Figure 4 Fig. 3 is a schematic view of the rotating assembly according to the first embodiment of the present application;

[0026] Figure 5 Fig. 4 is a schematic view of the cam assembly according to the first embodiment of the present application;

[0027] Figure 6 Fig. 5 is a schematic view of the pull rod assembly according to the first embodiment of the present application;

[0028] Figure 7 Fig. 6 is a schematic view of the mounting body according to the first embodiment of the present application;

[0029] Figure 8 Fig. 7 is a schematic view of the clutch driving device according to the first embodiment of the present application in a threshing mode;

[0030] Figure 9 Fig. 8 is another schematic view of the clutch driving device according to the first embodiment of the present application in the threshing mode;

[0031] Figure 10 Fig. 9 is a schematic view of the clutch driving device according to the first embodiment of the present application in a harvesting mode;

[0032] Figure 11 Fig. 10 is another schematic view of the clutch driving device according to the first embodiment of the present application in the harvesting mode;

[0033] Figure 12 Fig. 11 is a schematic view of the clutch driving device according to the first embodiment of the present application in a unloading mode;

[0034] Figure 13 Fig. 12 is another schematic view of the clutch driving device according to the first embodiment of the present application in the unloading mode;

[0035] Figure 14 Fig. 13 is a schematic view of the clutch driving device according to the third embodiment of the present application;

[0036] Figure 15 Fig. 14 is a schematic view of the rotating assembly according to the third embodiment of the present application;

[0037] Figure 16is a structural schematic diagram of a pull rod assembly according to a third embodiment of the present application;

[0038] Figure 17 is a structural schematic diagram of a clutch according to an embodiment of the present application.

[0039] Legend of reference numerals

[0040] 100 mounting body 110 first mounting side plate

[0041] 112 main shaft mounting hole 113 guide slot

[0042] 120 second mounting side plate 121 pull rod opening

[0043] 200 drive assembly 201 input shaft

[0044] 202 drive gear 203 input bearing

[0045] 300 rotation assembly 310 rotation main shaft

[0046] 311 gear structure 312 first drive structure

[0047] 313 second drive structure 314 third drive structure

[0048] 315 main shaft bearing 320 rotation assembly

[0049] 321 second base circle surface 322 second offset circle surface

[0050] 323 avoidance connecting surface 330 cam assembly

[0051] 331 inner base circle surface 332 first offset circle surface

[0052] 333 outer base circle surface 334 third offset circle surface

[0053] 340 gear member 350 cam member

[0054] 400 pull rod assembly 401 pull plate body

[0055] 402 pull rod shaft 403 pull wire

[0056] 404 pull wire shaft 500 clutch

[0057] 501 driving wheel 502 driven wheel

[0058] 503 synchronous belt 504 tensioning wheel

[0059] 505 first connecting rod 506 second connecting rod

[0060] 507 springs, 510 frame Detailed Implementation

[0061] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0062] The clutch drive device and harvester of the present invention are described below with reference to the accompanying drawings.

[0063] like Figures 1 to 3 As shown, the present invention provides a clutch drive device, wherein the clutch drive device includes:

[0064] Mounting body 100;

[0065] The driver component 200 is mounted on the mounting body 100;

[0066] The rotary assembly 300 includes a rotary spindle 310, which is rotatably mounted on the mounting body 100. The rotary spindle 310 is provided with a transmission structure, and the rotary spindle 310 is also provided with a first drive structure 312, a second drive structure 313 and a third drive structure 314, and each drive structure is a cam drive structure.

[0067] A tie rod assembly 400 is provided on at least one drive structure. The first end of the tie rod assembly 400 is movably disposed on the mounting body 100 and can be moved under the drive of the drive structure, and the second end is used to connect with the clutch 500 corresponding to the drive structure.

[0068] When the clutch driving device is used, since the mounting body 100, the driving assembly 200, the rotating assembly 300 and the pull rod assembly 400 are included, the rotating main shaft 310 in the rotating assembly 300 is rotatably arranged on the mounting body 100, and the rotating main shaft 310 is provided with the transmission structure, and the first driving structure 312, the second driving structure 313 and the third driving structure 314 are staggered, specifically, the first driving structure 312, the second driving structure 313 and the third driving structure 314 can be sequentially arranged according to the needs of threshing, harvesting and unloading, that is, the rotating main shaft 310, the transmission structure and the three driving structures are arranged as an integrated rotating structure, and the pull rod assembly 400 connected with the clutch 500 can be moved under the driving of the corresponding driving structure, then the transmission structure is driven to rotate by the driving assembly, the first driving structure 312, the second driving structure 313 and the third driving structure 313 integrated with the transmission structure can drive the pull rod assembly 400 to pull the corresponding clutch 500 to close under different rotating angles, and the threshing function, the harvesting function and the unloading function are realized, in addition, the cam driving structure is used to replace the slot driving structure in the prior art, which obviously reduces the influence on the structural strength, and achieves the purpose of facilitating the pulling of large load.

[0069] Specifically, each driving structure has a threshing point, a harvesting point and an unloading point corresponding to the threshing condition, the harvesting condition and the unloading condition respectively, when the pull rod assemblies 400 on each driving structure are all at the threshing point, the pull rod assembly 400 arranged on the first driving structure 312 pulls the corresponding clutch 500 to close, and the pull rod assemblies 400 on the remaining two driving structures do not pull the corresponding clutch 500, and the threshing function is realized, that is, the first driving structure 312 is arranged as a threshing driving structure; when the pull rod assemblies 400 on each driving structure are all at the harvesting point, the pull rod assembly 400 arranged on the first driving structure 312 keeps pulling the corresponding clutch 500 to close, and the pull rod assembly 400 arranged on the second driving structure 313 pulls the corresponding clutch 500 to close, and the pull rod assembly 400 arranged on the third driving structure 314 does not pull the corresponding clutch 500, and the harvesting function is realized, that is, the second driving structure 313 is arranged as a harvesting driving structure; when the pull rod assemblies 400 on each driving structure are all at the unloading point, the pull rod assembly 400 arranged on the third driving structure 314 pulls the corresponding clutch 500 to close, and the pull rod assemblies 400 on the remaining two driving structures do not pull the corresponding clutch 500, and the unloading function is realized, that is, the third driving structure 314 is arranged as an unloading driving structure. Of course, the present application is not limited thereto, and the functions of the three driving structures can be set according to actual needs.

[0070] In this embodiment of the invention, the drive assembly 200 includes a rotary drive member and a drive gear 202. The input shaft 201 of the rotary drive member is rotatably mounted on the mounting body 100 and drivenly connected to the drive gear 202. The transmission structure is a gear structure 311 meshing with the drive gear 202. The outer diameter of the gear structure 311 is larger than the outer diameter of the drive gear 202, thereby generating a torque amplification effect and achieving the purpose of reducing the output torque of the rotary drive member. It should be noted that, due to the reduction in the required output torque, the selection of the rotary drive member can be expanded from a motor with a large output torque to a motor with a small output torque. Specifically, the input shaft 201 of the rotary drive member can be arranged in parallel with the rotary spindle 310. Of course, the invention is not limited to this. The transmission structure can also be a driven sprocket or a driven pulley structure, and the drive assembly can be a drive sprocket with a transmission chain or a drive pulley with a transmission belt.

[0071] In the first embodiment of the present invention, the rotary assembly 300 further includes a rotary assembly 320 and a cam assembly 330 axially spaced on the rotary spindle 310. The rotary assembly 320 is provided with a gear structure 311. On the side of the rotary assembly 320 away from the gear structure 311, one of the following cam drive structures is provided: a first drive structure 312, a second drive structure 313, and a third drive structure 314. The cam assembly 330 is provided with two other cam drive structures offset from each other. That is, the rotary assembly 320 can be configured as a combination of a gear and a cam. On the side of the rotary assembly 320 facing the drive gear 202, a gear structure 311 is provided to mesh with the drive gear 202 and thus provide power. On the side of the rotary assembly 320 away from the drive gear 202 or the gear structure 311, one of the cam drive structures is provided to drive the tie rod assembly 400 to drive the corresponding clutch 500 to close. This configuration can reduce the load on the rotary spindle 310, thereby further reducing the output torque of the rotary drive component.

[0072] See Figures 2 to 4In the first embodiment of the present application, the rotary assembly 320 is provided with a second driving structure 313 on the side away from the gear structure 311, the second driving structure 313 comprising a second base circle surface 321 and a second offset circle surface 322, the second base circle surface 321 and the second offset circle surface 322 being sequentially arranged from inside to outside on the rotary assembly 320, the second base circle surface 321 being arranged on a first circle with the rotary center line of the rotary main shaft 310 as the center line, that is, when the rotary assembly 320 rotates and the first end of the pull rod assembly 400 moves on the second base circle surface 321, the distance between the pull rod assembly 400 and the rotary center line of the rotary main shaft 310 remains unchanged, the second driving structure 313 does not push the pull rod assembly 400 to move, the center line of the second offset circle surface 322 has an offset distance from the rotary center line, and the second offset circle surface 322 is arranged in a convex manner outside the first circle, that is, when the rotary assembly 320 rotates to the position corresponding to the second offset circle surface 322 of the pull rod assembly 400, the distance between the pull rod assembly 400 and the rotary center line of the rotary main shaft 310 becomes larger, so that the second driving structure 313 can push the pull rod assembly 400 to move, and finally move to a position that can drive the corresponding clutch 500 to close. By setting the cam profile surface of the second driving structure 313 as the second base circle surface 321 and the second offset circle surface 322, the setting area of the threshing point, the harvesting point and the unloading point of the second driving structure 313 is limited, if the second driving structure 313 is set as a harvesting driving structure, the threshing point and the unloading point can be arranged at the two ends of the second base circle surface 321, that is, the second base circle surface 321 is set as a harvesting base circle surface, the pull rod assembly 400 does not pull the corresponding clutch 500 to close on this base circle surface, the harvesting point can be arranged at one end of the second offset circle surface 322 away from the second base circle surface 321, that is, the second offset circle surface 322 is set as a harvesting offset circle surface, the pull rod assembly 400 can pull the corresponding clutch 500 to close on this base circle surface, and the two-section cam profile surface setting can make the cam profile surface simpler and the structure strength of the rotary assembly 320 higher. Of course, the present application is not limited to this, the cam profile surface of the second driving structure 313 can be set as other suitable multi-section structures.

[0073] Specifically, each driving structure also has a zero point position corresponding to the driving condition, in which the pull rod assembly 400 on each driving structure is located at the zero point position, and each corresponding clutch 500 is not pulled, and all clutches 500 are in the retracted and disconnected state. More specifically, the zero point position of the second driving structure 313 can be located at the middle position of the second base circle surface 321, the threshing point position of the second driving structure 313 is located at one end of the second base circle surface 321 close to the second offset circle surface 322, and the unloading point position is located at the other end of the second base circle surface 321 away from the second offset circle surface 322, in the threshing condition, the second driving structure 313 can rotate by a preset angle, so that the second driving structure 313 switches from the zero point position to the threshing point position corresponding to the pull rod assembly 400; in the harvesting condition, the second driving structure 313 can continue to rotate by a preset angle, so that the second driving structure 313 switches from the threshing point position to the harvesting point position corresponding to the pull rod assembly 400, and in the switching process, since the second offset circle surface 322 is located outside the first circumference where the second base circle surface 321 is located, the pull rod assembly 400 can be continuously pushed to drive the corresponding clutch 500 to move until the clutch 500 is tensioned and closed; in the unloading condition, the second driving structure 313 can reversely rotate by a preset angle, so that the second driving structure 313 switches from the zero point position to the unloading point position corresponding to the pull rod assembly 400. It should be particularly noted that in different conditions, the first driving structure 312 and the third driving structure 314 rotate to the corresponding positions corresponding to the pull rod assembly 400.

[0074] Further, the second driving structure 313 further comprises an avoidance connecting surface 323, which is connected to one end of the second base circle surface 321 away from the second offset circle surface 322 and extends in a direction away from the second offset circle surface 322. The avoidance connecting surface 323 is concave inwardly to the swivel main shaft 310 at the connection with the second base circle surface 321 to form an avoidance space, which can ensure that the second driving structure 313 is rotated in place when the second base circle surface 321 corresponds to the pull rod assembly 400, and the pull rod assembly 400 does not interfere with the rotation. Further, the swivel assembly 320 is provided with a swivel mounting hole, and the second driving structure 313 is located on one side of the swivel mounting hole. The swivel assembly 320 is sleeved on the swivel main shaft 310 through the swivel mounting hole and drives the swivel main shaft 310 to rotate on the mounting body 100 through the key connection structure.

[0075] Referring to Figure 2 , Figure 3 and Figure 5In the first embodiment of the present application, the outer peripheral contour of the cam assembly 330 is sequentially provided with the first end-to-end inner base circle surface 331, the first offset circle surface 332, the outer base circle surface 333 and the third offset circle surface 334 in the circumferential direction, the inner base circle surface 331 and the outer base circle surface 333 are respectively arranged on the second and third circumferences with the rotation center line of the rotation main shaft 310 as the center line, and the radius of the third circumference is greater than that of the second circumference, the first offset circle surface 332 and the third offset circle surface 334 are both arranged in a convex manner on the outside of the second circumference, the first offset circle surface 332, the outer base circle surface 333 and the part of the inner base circle surface 331 close to the first offset circle surface 332 form the first driving structure 312, and the third offset circle surface 334 and the part of the inner base circle surface 331 close to the third offset circle surface 334 form the third driving structure 314. That is, the first driving structure 312 and the third driving structure 314 are both provided on the cam assembly 330, the first driving structure 312 is arranged on the outer peripheral contour of one side of the cam assembly 330, the third driving structure 314 is arranged on the outer peripheral contour of the other side of the cam assembly 330, and both sides of the cam assembly 330 are driving working surfaces. In this way, the structure can be simplified, the manufacturing cost can be saved, and the load on the rotation main shaft 310 can be further reduced.

[0076] Specifically, if the first driving structure 312 is configured as a threshing driving structure, the zero point of the first driving structure 312 can be arranged at one end of the first offset circle face 332 connected with the inner base circle face 331, the threshing point can be arranged at one end of the first offset circle face 332 connected with the outer base circle face 333, the harvesting point can be arranged on the outer base circle face 333, and the unloading point can be arranged on the inner base circle face 331, that is, the first offset circle face 332 is configured as a threshing offset circle face, and the pull rod assembly 400 can pull the corresponding clutch 500 to close on the offset circle face and the outer base circle face 333; if the third driving structure 314 is configured as an unloading driving structure, the zero point of the third driving structure 314 can be arranged at one end of the third offset circle face 334 connected with the inner base circle face 331, the threshing point and the harvesting point are arranged on the inner base circle face 331, and the unloading point is arranged on the third offset circle face 334, that is, the third offset circle face 334 is configured as an unloading offset circle face, and the pull rod assembly 400 can pull the corresponding clutch 500 to close on the offset circle face. More specifically, in the threshing working condition, the cam assembly 330 follows a preset angle of rotation, so that the first driving structure 312 and the third driving structure 314 are switched from the respective zero points to the threshing points corresponding to the pull rod assembly 400, and in the switching process, since the first offset circle face 332 is located outside the second circumference where the inner base circle face 331 is located, the first driving structure 312 can continuously push the pull rod assembly 400 to drive the corresponding clutch 500 to move, until the clutch 500 is tensioned and closed; in the harvesting working condition, the cam assembly 330 continues to follow a preset angle of rotation, so that the first driving structure 312 and the third driving structure 314 are switched from the respective threshing points to the harvesting points corresponding to the pull rod assembly 400, and in the switching process, since the outer base circle face 333 is connected with one end of the first offset circle face 332 away from the inner base circle face 331, the first driving structure 312 can keep the pull rod assembly 400 tensioned, thereby keeping the clutch 500 tensioned and closed; in the unloading working condition, the cam assembly 330 follows a reverse preset angle of rotation, so that the first driving structure 312 and the third driving structure 314 are switched from the respective zero points to the unloading points corresponding to the pull rod assembly 400, and in the switching process, since the third offset circle face 334 is located outside the second circumference where the inner base circle face 331 is located, the third driving structure 314 can continuously push the pull rod assembly 400 to drive the corresponding clutch 500 to move, until the clutch 500 is tensioned and closed.

[0077] Further, the cam assembly 330 is provided with a cam mounting hole, the first offset circular face 332 and the third offset circular face 334 are arranged on two sides of the cam mounting hole, the cam assembly 330 is sleeved on the rotary main shaft 310 through the cam mounting hole and rotates with the rotary main shaft 310 through the key connection structure. In addition, in order to realize that the first driving structure 312 and the third driving structure 314 are arranged on opposite sides of one cam assembly 330, the pull rod assemblies 400 corresponding to the first driving structure 312 and the third driving structure 314 need to be reversely arranged so as to be staggered.

[0078] As shown in Figure 2 , each pull rod assembly 400 is located at the zero position of the corresponding cam driving structure, the pull wire 403 of the pull rod assembly 400 is in a relaxed state, and each clutch 500 is in a disconnected position. When the driving gear 202 drives the rotary assembly 320 to rotate clockwise by 55°, as shown in Figure 8 and Figure 9 , the pull rod shaft 402 of the pull rod assembly 400 corresponding to the first driving structure 312 moves to the outermost side along the cam profile surface of the first driving structure 312, the pull wire 403 of the pull rod assembly 400 is pulled tight, the tension pulley 504 is in a tensioned state, the threshing clutch is closed, the harvesting and unloading clutch is in a disconnected state, and the threshing function is realized. On the basis of Figure 8 and Figure 9 , the driving gear 202 drives the rotary assembly 320 to rotate clockwise by another 55°, as shown in Figure 10 and Figure 11 , at this time, the pull rod shaft 402 of the pull rod assembly 400 corresponding to the threshing and harvesting moves to the outermost side of the corresponding cam driving structure, and the threshing and harvesting clutches are simultaneously closed, and the unloading clutch is in a disconnected position, and the harvesting function is realized. On the basis of Figure 1 , the driving gear 202 drives the rotary assembly 320 to rotate counterclockwise by 55°, as shown in Figure 12 and Figure 13 , at this time, the pull rod shaft 402 of the pull rod assembly 400 corresponding to the unloading moves to the outermost side of the cam profile surface of the third driving structure 314, and the threshing and harvesting clutches are simultaneously disconnected, and the unloading clutch is in a closed position, and the unloading function is realized. Of course, the present application is not limited to this, and other rotation angles can be used to realize the switching of the threshing, harvesting and unloading functions, for example, 45°, 50°, 60°, etc.

[0079] In the second embodiment of the present application, on the basis of the rotary assembly 320, the number of cam assemblies 330 can also be set to two, and the two cam assemblies 330 are spaced apart on the rotary main shaft 310 and are respectively and one-to-one provided with the first driving structure 312 and the third driving structure 314. By separately providing the disengagement driving structure and the third driving structure 314 on the two cam assemblies 330, the corresponding pull rod assembly 400 can be arranged in the same direction, thereby facilitating the installation of the pull rod assembly 400 on the cam assembly 330. Specifically, the first driving structure 312 and the third driving structure 314 on the two cam assemblies 330 can be appropriately split according to the setting on one cam assembly 330.

[0080] Referring to Figure 14 and Figure 15 In the third embodiment of the present application, the rotary assembly 300 further comprises a gear member 340 spaced apart in the axial direction on the rotary main shaft 310 and three cam members 350, the gear member 340 forms the gear structure 311, and the three cam members 350 are respectively and one-to-one provided with the first driving structure 312, the second driving structure 313 and the third driving structure 314. That is, the gear structure 311 is provided by a standard gear member 340, and the three driving structures are separately provided on the three separate cam members 350, so that the purpose of easy manufacturing can be achieved. At the same time, the separate arrangement of the three driving structures makes the structure of the corresponding pull rod assembly 400 simpler. Specifically, from the starting position (i.e. zero point position), the driving gear 202 drives the gear member 340 to rotate counterclockwise by 120° with the rotary main shaft 310 to be threshing condition, on the basis of which it continues to rotate by 120° to be harvesting condition, and from the starting position, the driving gear 202 drives the gear member 340 to rotate clockwise by 120° with the rotary main shaft 310 to be unloading condition. It needs to be particularly pointed out that the setting of the cam profile surface of the three cam members 350 can be set according to the specific needs to realize the function.

[0081] Referring to Figure 6 and Figure 16 In the embodiment of the present application, the pull rod assembly 400 comprises a pull rod shaft 402, a pull wire 403 and a pull plate body 401, the pull rod shaft 402 is provided on the first end of the pull plate body 401 and is movably arranged on the mounting body 100, the outer peripheral contour of the cam driving structure abuts against the pull rod shaft 402, and the pull wire 403 is provided on the second end of the pull plate body 401 and is used to be connected with the corresponding clutch 500. That is, the setting of the pull rod shaft 402 can realize the application of the action force of the cam driving structure to the pull rod assembly 400.

[0082] In the embodiment of the present application, the number of the pull plate bodies 401 is two, the two pull plate bodies 401 are arranged in parallel, the pull rod shaft 402 is sequentially arranged in the first end of the two pull plate bodies 401, and the cam driving structure can be inserted between the two pull plate bodies 401, so that the pull rod shaft 402 is in abutment with the outer contour of the cam driving structure. The number of the pull plate bodies 401 is increased to two, and the cam driving structure is clamped between the two pull plate bodies 401, so as to ensure the stability of the force applied by the cam driving structure to the pull rod assembly 400. It should be particularly pointed out that in the third embodiment of the present application, the pull plate body 401 of the pull rod assembly 400 can be arranged as a straight plate, the straight plate makes the pushing force of the cam driving structure to the pull rod shaft 402 and the pulling force applied by the pull rod assembly 400 to the clutch 500 on the same straight line, without generating torque, ensuring the stability of the force, and prolonging the service life of the pull rod assembly 400. In the first embodiment of the present application, the pull plate body 401 of the pull rod assembly 400 can be arranged as an L-shaped plate, the pull rod shaft 402 is arranged in the vertical segment of the L-shaped plate, the pull wire 403 is arranged at one end of the horizontal segment of the L-shaped plate away from the vertical segment, and the length of the vertical segment is arranged to be much larger than the length of the horizontal segment, specifically more than 5 times. Arranging the pull rod shaft 402 away from the horizontal segment can make the pull rod shaft 402 move a smaller arc on the corresponding base circle surface to realize a larger displacement of the horizontal segment, so as to realize the installation of the two pull rod assemblies 400 on the opposite sides of the same cam combination 330.

[0083] Further, the second end of the two pull plate bodies 401 is provided with a pull wire shaft 404, the pull wire 403 is arranged on the pull wire shaft 404, and the first end of the two pull plate bodies 401 is provided with a pull rod bearing, the pull rod shaft 402 passes through the pull rod bearing of the two pull plate bodies 401, so that the pull rod shaft 402 is rotatably arranged on the two pull plate bodies 401, and the contact between the pull rod shaft 402 and the outer contour of the cam driving structure is rolling contact, which reduces the abrasion.

[0084] In the embodiment of the present application, the guide groove 113 for the movable pull rod shaft 402 is arranged on the mounting body 100. The arrangement of the guide groove 113 can further ensure the stability of the movement of the pull rod assembly 400.

[0085] As Figure 1 and Figure 7As shown, in the embodiment of the present application, the mounting body 100 comprises two first mounting side plates 110 arranged in relative spacing, and the two first mounting side plates 110 are provided with main shaft mounting holes 112 corresponding to the two ends of the rotary main shaft 310 respectively, and the main shaft mounting holes 112 are provided with main shaft bearings 315 for the rotary main shaft 310, and the gear structure 311, the first driving structure 312, the second driving structure 313 and the third driving structure 314 as the transmission structure are arranged between the two first mounting side plates 110, that is, the above-mentioned structures are arranged in the inner cavity formed by the mounting body 100, and the mounting body 100 can protect the above-mentioned structures, and the first mounting side plate 110 is further provided with an input mounting hole and a guide groove 113, and the driving assembly 200 can extend into the two first mounting side plates 110 from the input mounting hole to be drivingly connected with the gear structure 311 between the two first mounting side plates 110, and specifically, the rotary driving member of the driving assembly 200 can be arranged outside the mounting body 100, the input shaft 201 of the rotary driving member extends into the two first mounting side plates 110 through the input mounting hole and is connected with the driving gear 202, and the input mounting hole is provided with an input shaft bearing 203 for the input shaft 201. It should be particularly pointed out that there are three cam driving structures, and the corresponding pull rod assembly 400 is also three, and the number of guide grooves 113 should also be three, and the specific positions can be set according to the actual situation.

[0086] In the embodiment of the present application, the mounting body 100 further comprises a second mounting side plate 120 connected with the two first mounting side plates 110, and the second mounting side plate 120 is provided with a pull rod opening 121 for the pull rod assembly 400 to move through. Specifically, the number of the second mounting side plate 120 can be two, and the two second mounting side plates 120 are arranged in relative spacing and are connected with the two ends of the two first mounting side plates 110 respectively, so that the mounting body 100 is provided in a box shape, and the addition of the pull rod opening 121 can reduce the mounting space of the mounting body 100, and guide the movement of the pull rod assembly 400. It should be particularly pointed out that the pull rod opening 121 can be provided on the two second mounting side plates 120 to adapt to different forms of cam driving structure.

[0087] In addition, referring to Figure 17Each clutch 500 comprises a driving wheel 501, a driven wheel 502, a synchronous belt 503, a tension wheel 504 and a connecting rod assembly, the driving wheel 501 and the driven wheel 502 are arranged on the frame 510 in a spaced manner, the synchronous belt 503 is arranged around the driving wheel 501 and the driven wheel 502, the connecting rod assembly comprises a first connecting rod 505 and a second connecting rod 506, one end of the first connecting rod 505 and one end of the second connecting rod 506 are connected with the tension wheel 504 through a tandem shaft in series, and the other end of the first connecting rod 505 away from the tandem shaft is movably hinged to the frame 510, and the other end of the second connecting rod 506 crosses the synchronous belt 503 and is connected with the pull wire 403 through a spring 507, so that when the pull rod assembly 400 moves in translation with the rotation of the cam driving structure, the pull rod assembly 400 pulls the spring 507 through the pull wire 403, the spring 507 pulls the tension wheel 504, the synchronous belt 503 is tensioned, the driving wheel 501 drives the driven wheel 502 to rotate through the synchronous belt 503, and the clutch 500 is closed; when the pull rod assembly 400 moves reversely, the spring 507 contracts, the tension wheel 504 loosens, and the driven wheel 502 stops moving, so that the clutch 500 is disconnected. Further, when the clutch driving device is damaged, if the grain bin is full of grain, it will seriously affect the maintenance, in order to solve the problem, a tension hole can be drilled on the frame, so that the pull wire 403 corresponding to the unloading function can be separated from the spring 507, the spring 507 can be hung on the tension hole, and the position of the tension hole can make the spring 507 in the state of pulling the tension wheel 504 to tension the synchronous belt 503, so that manual unloading can be realized.

[0088] To achieve the above object, the present application also provides a harvester, wherein the harvester comprises the clutch driving device according to the above description. Since the harvester adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0089] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0090] In this application, unless otherwise clearly indicated, the terms "mounting", "connection", "connecting", "fixed", "fixedly connected" and the like should be understood in the broadest sense possible, such as it can be fixedly connected, detachably connected, or integral; it can be a mechanical connection, an electrical connection, or a communication connection between them; it can be a direct connection, or an indirect connection via an intermediate medium; it can be a communication between two elements, or an interaction between two elements, unless otherwise clearly indicated. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0091] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0092] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A clutch drive apparatus characterized by comprising: The clutch driving device comprises: a mounting body (100); a driving assembly (200) arranged on the mounting body (100); a rotating assembly (300) comprising a rotating main shaft (310) rotatably arranged on the mounting body (100), the rotating main shaft (310) being provided with a transmission structure, the driving assembly (200) driving the transmission structure to rotate, the rotating main shaft (310) further being provided with a first driving structure (312), a second driving structure (313) and a third driving structure (314), and each driving structure being a cam driving structure; a pull rod assembly (400) arranged on at least one driving structure, a first end of the pull rod assembly (400) being movably arranged on the mounting body (100) and being movable under the driving of the driving structure, and a second end being used for connecting a corresponding clutch (500) of the driving structure; the pull rod assembly (400) comprising a pull rod shaft (402), a pull wire (403) and a pull plate body (401), the pull rod shaft (402) being arranged at a first end of the pull plate body (401) and being movably arranged on the mounting body (100), an outer contour of the cam driving structure abutting against the pull rod shaft (402), the pull wire (403) being arranged at a second end of the pull plate body (401) and being used for connecting the corresponding clutch (500); the pull rod assembly (400) being used for, in the case that the cam driving structure rotates to generate a translational motion, pulling a tensioning wheel (504) in the clutch (500) through the pull wire (403) to tension or relax a synchronous belt (503), so as to correspondingly control a driven wheel (502) in the clutch (500) to rotate or stop.

2. The clutch drive device of claim 1, wherein the driving assembly (200) comprising a rotating driving member and a driving gear (202), an input shaft (201) of the rotating driving member being rotatably arranged on the mounting body (100) and being drivingly connected with the driving gear (202), the transmission structure being a gear structure (311) meshing with the driving gear (202), an outer diameter of the gear structure (311) being greater than an outer diameter of the driving gear (202).

3. A clutch drive device according to claim 2, characterised in that, the rotating assembly (300) comprising a rotating combination body (320) and a cam combination body (330) arranged at intervals on the rotating main shaft (310), the rotating combination body (320) being provided with the gear structure (311), the rotating combination body (320) being provided with one of the first driving structure (312), the second driving structure (313) and the third driving structure (314) on a side away from the gear structure (311), the cam combination body (330) being provided with the other two cam driving structures.

4. A clutch drive device according to claim 3, characterised in that The second driving structure (313) is arranged on the side of the rotation assembly (300) away from the gear structure (311), and the second driving structure (313) comprises a second base circle surface (321) and a second offset circle surface (322), the second base circle surface (321) and the second offset circle surface (322) are sequentially arranged from inside to outside on the rotation assembly (320), the second base circle surface (321) is arranged on a first circle with the rotation center line of the rotation shaft (310) as a center line, the second offset circle surface (322) has an offset distance from the rotation center line, and the second offset circle surface (322) is arranged in a convex manner on the outside of the first circle.

5. The clutch drive device of claim 3, wherein The outer peripheral contour of the cam assembly (330) sequentially comprises a first base circle surface (331), a first offset circle surface (332), a second base circle surface (333) and a third offset circle surface (334) in sequence, the first base circle surface (331) and the second base circle surface (333) are arranged on opposite sides of the rotation shaft (310), the first base circle surface (331) and the second base circle surface (333) are respectively arranged on a second circle and a third circle with the rotation center line of the rotation shaft (310) as a center line, and the radius of the third circle is greater than the radius of the second circle, the first offset circle surface (332) and the third offset circle surface (334) are arranged in a convex manner on the outside of the second circle, the first offset circle surface (332), the second base circle surface (333) and part of the first base circle surface (331) close to the first offset circle surface (332) form the first driving structure (312), and the third offset circle surface (334) and part of the first base circle surface (331) close to the third offset circle surface (334) form the third driving structure (314).

6. The clutch drive device of claim 3, wherein The number of the cam assemblies (330) is two, and the two cam assemblies (330) are arranged on the rotation shaft (310) in a spaced manner and are respectively provided with the first driving structure (312) and the third driving structure (314).

7. The clutch drive device of claim 2, wherein The rotation assembly (300) further comprises a gear member (340) and three cam members (350) arranged on the rotation shaft (310) in a spaced manner along the axial direction, the gear member (340) forms the gear structure (311), and the three cam members (350) are respectively provided with the first driving structure (312), the second driving structure (313) and the third driving structure (314).

8. The clutch drive apparatus according to any one of claims 1 to 7, characterized by The number of the pull plate bodies (401) is two, the two pull plate bodies (401) are arranged in a parallel manner, the pull rod shaft (402) is sequentially arranged in the first ends of the two pull plate bodies (401), and the cam driving structure can be inserted between the two pull plate bodies (401) to abut against the outer peripheral contour of the cam driving structure.

9. The clutch drive apparatus according to any one of claims 1 to 7, characterized by A guide slot (113) is formed in the mounting body (100) and is movable through the pull rod shaft (402).

10. A clutch drive device according to claim 9, wherein The mounting body (100) comprises two first mounting side plates (110) which are oppositely spaced apart, and a main shaft mounting hole (112) is formed in each of the two first mounting side plates (110) and is arranged to correspond to one end of the rotary main shaft (310) to rotatably mount the rotary main shaft (310), the transmission structure, the first driving structure (312), the second driving structure (313) and the third driving structure (314) are arranged between the two first mounting side plates (110), and an input mounting hole and the guide slot (113) are also formed in the first mounting side plates (110) and are spaced apart, and the driving assembly (200) extends into the two first mounting side plates (110) from the input mounting hole.

11. A clutch drive device according to claim 10, wherein The mounting body (100) further comprises a second mounting side plate (120) which connects the two first mounting side plates (110), and a pull rod opening (121) is formed in the second mounting side plate (120) and is movable through the pull rod assembly (400).

12. A harvester characterized by The harvester comprises the clutch driving device according to any one of claims 1 to 11.

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