Threshing concave plate adjusting device and harvester

Abstract

The utility model provides a threshing concave plate adjusting device and a harvester, the threshing concave plate adjusting device comprises a fixing mechanism and an adjusting mechanism, the adjusting mechanism is arranged on the fixing mechanism, the adjusting mechanism comprises a driving assembly, a driving rod and a moving rod, the driving assembly is connected with the moving rod through the driving rod, and the driving assembly drives the driving rod to rotate. The driving rod drives the moving rod to move up and down in the vertical direction, and the moving rod is connected with the concave plate body so as to drive the concave plate body to change the position. The threshing concave plate adjusting device is simple in overall structure, machining, assembling and maintaining cost is saved, the position of the concave plate body is adjusted by adjusting the vertical position of the moving rod, the problem that manual and hydraulic concave plate adjusting devices are poor in adjusting precision is solved, and the threshing concave plate adjusting device is convenient to use. Due to the fact that the whole device only adopts the combination of the driving assembly, the driving rod and the moving rod of the adjusting mechanism, the whole device is small in occupied space, not limited by space, energy-saving, simple in structure, low in cost and capable of being suitable for various working conditions, and energy is saved.

Description

Technical Field

[0001] This application relates to the technical field of agricultural machinery devices, and particularly to a threshing concave adjusting device and a harvester. Background Art

[0002] With the rapid development and application of wheat harvesting machinery, it has played a huge role in promoting the rapid development of agriculture. While wheat harvesting machinery is widely used, the performance requirements for harvesters are also getting higher and higher, demanding the ability to combine multiple functions in one machine. Due to the different external shapes of crops, there are significant differences in the required threshing intensity. Therefore, it is required that the threshing gap of the harvester can vary within a certain range to adapt to the harvesting needs of different crops. Thus, the harvester needs to be equipped with a set of devices that can freely adjust the concave gap, thereby changing the magnitude of the force exerted by the cylinder on the crops, to achieve adaptability to different crops, and further meet the function of the harvester to combine multiple functions in one machine.

[0003] Existing concave adjusting devices can be generally divided into manual, electric, and hydraulic types according to different driving forces. The manual type mainly manipulates the handle by manpower, enabling the concave to rotate around the rotating shaft, thereby changing the distance between the concave and the cylinder. This structure is simple and easy to operate, but the concave gap can only be adjusted according to pre-set values, with poor adjustment accuracy. If the concave gap needs to be changed frequently, it is necessary to stop and adjust continuously, seriously affecting the operation efficiency of the whole vehicle. The electric type mainly provides driving force through a motor and realizes the rotation of the concave by driving the movement of relevant components. This structure has the characteristics of flexible and convenient operation, not restricted by space, and energy saving, etc., but the existing structure layout is relatively complex, requires more installation space, and has insufficient maintainability. The hydraulic type mainly connects the telescopic rod of the hydraulic cylinder to the concave and realizes the rotation of the concave by changing the control hydraulic valve. The advantage of this structure is its simplicity, but the cost of the hydraulic cylinder is relatively high, and the hydraulic cylinder has relatively high requirements for the installation space structure.

[0004] Therefore, it is necessary to design a threshing concave adjusting device to solve the problems existing in the existing devices. Utility Model Content

[0005] In view of this, to overcome the defects of the prior art, the present utility model provides a threshing concave adjusting device and a harvester, effectively solving the problems existing in the existing concave adjusting devices. These problems are caused by different adjustment methods. For example, the manual adjusting device has the problem of poor adjustment accuracy as it can only be adjusted according to pre-set values, the electric adjusting device has the problems of relatively complex structure layout, requiring more installation space, and insufficient maintainability, and the hydraulic adjusting device has the problems of relatively high cost of the hydraulic cylinder and relatively high requirements for the installation space structure.

[0006] According to a first aspect of the present utility model, a threshing concave adjusting device for a harvester is provided. The harvester includes a concave body. Wherein, the threshing concave adjusting device includes a fixing mechanism and an adjusting mechanism; the adjusting mechanism is arranged on the fixing mechanism. The adjusting mechanism includes a driving component, a driving rod and a moving rod. The driving component is connected to the moving rod through the driving rod. The driving component drives the driving rod to rotate, and the driving rod drives the moving rod to move up and down in the vertical direction. The moving rod is connected to the concave body to drive the concave body to change its position.

[0007] Preferably, the driving component includes a driving member and a transmission member. The driving member drives the driving rod to rotate through the transmission member; the transmission member includes a transmission gear, a worm transmission member and a swinging member. The transmission gear is connected to the driving member. Tooth grooves are arranged along the outer periphery of the swinging member. The worm transmission member is meshed and connected to the swinging member through the tooth grooves. The swinging member is connected to the driving rod.

[0008] Preferably, the fixing mechanism includes a separating chamber cover plate, a first support seat and a transition sleeve. Both the first support seat and the transition sleeve are arranged on the separating chamber cover plate. The driving rod is arranged on the separating chamber cover plate through the first support seat. The moving rod is arranged on the separating chamber cover plate through the transition sleeve. The first end of the moving rod is connected to the driving rod. The second end of the moving rod penetrates through the separating chamber cover plate.

[0009] Preferably, the fixing mechanism further includes a support plate. The support plate is arranged on the separating chamber cover plate and is arranged on both sides of the transition sleeve.

[0010] Preferably, the fixing mechanism further includes a second support seat. The driving component is arranged on the second support seat.

[0011] Preferably, the threshing concave adjusting device further includes an angle measuring component. The angle measuring component includes a measuring bracket, a measuring connecting rod and an angle sensor. The measuring bracket is arranged on the fixing mechanism and is located on the side of the driving component. The angle sensor is arranged on the measuring bracket. The angle sensor is connected to the driving component through the measuring connecting rod.

[0012] Preferably, the adjusting mechanism further includes a concave connecting slider head. The concave connecting slider head is arranged at the second end of the moving rod. The moving rod is connected to the concave body through the concave connecting slider head.

[0013] Preferably, the driving rod is connected to the moving rod through a connecting member. The connecting member includes a connecting plate and a pin shaft. The first end of the connecting plate is connected to the driving rod, and the second end of the connecting plate is connected to the moving rod through the pin shaft.

[0014] Preferably, the number of the first support seats and the number of the moving rods are both multiple. A plurality of the first support seats are sequentially arranged on the separation chamber cover plate, and a plurality of the moving rods are sequentially arranged on the separation chamber cover plate. The driving rod passes through a plurality of the first support seats and a plurality of the moving rods.

[0015] According to a second aspect of the present invention, a harvester is provided, wherein the harvester includes the threshing concave adjusting device as described above.

[0016] According to the threshing concave adjusting device of the present invention, the overall structure is simple, which can effectively simplify the complexity of the concave adjusting mechanism, facilitate installation and processing, can reduce the machining accuracy of parts, save machining, assembly and maintenance costs. By adjusting the up and down position of the moving rod, stepless position adjustment of the concave body can be realized, solving the problem of poor adjustment accuracy of the manual and hydraulic concave adjusting devices. At the same time, since the overall device only adopts the combination of the driving component, the driving rod and the moving rod of the adjusting mechanism, the overall occupied space is small, not limited by space, saving energy. In addition, the structure is simple and the cost is low, and it can be applied to a variety of working conditions.

[0017] In order to make the above objects, features and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, details are described as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Showing a schematic structural view of a threshing concave adjusting device according to an embodiment of the present invention;

[0020] Figure 2 Showing a front view of a threshing concave adjusting device according to an embodiment of the present invention;

[0021] Figure 3 Showing a side view of a threshing concave adjusting device according to an embodiment of the present invention;

[0022] Figure 4A schematic structural diagram showing the cooperation between a threshing concave adjusting device and a concave body according to an embodiment of the present utility model is shown.

[0023] Reference numerals: 101 - separation chamber cover plate; 102 - first support seat; 103 - transition sleeve; 104 - support plate; 105 - second support seat; 201 - drive rod; 202 - moving rod; 203 - drive member; 204 - transmission gear; 205 - worm transmission member; 206 - swinging member; 207 - concave connection slider head; 208 - connecting plate; 209 - pin shaft; 301 - measuring bracket; 302 - angle sensor; 303 - measuring connecting rod; 4 - concave body. Detailed implementation manners

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are only a part rather than all of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0025] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0026] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0027] In the description of the embodiments of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the connection inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0028] According to a first aspect of the present invention, a threshing concave adjusting device is provided, as Figures 1 to 4 shown. The threshing concave adjusting device is used for a harvester and can adjust the position of the following concave body 4. The threshing concave adjusting device includes a fixing mechanism and an adjusting mechanism.

[0029] In the following description, reference will be made to Figures 1 to 4 specifically describe the detailed structures of the fixing mechanism and the adjusting mechanism of the threshing concave adjusting device.

[0030] As Figures 1 to 4 shown, in the embodiment, the fixing mechanism is used to fix the adjusting mechanism and at the same time enable the threshing concave adjusting device to be installed on the harvester. The adjusting mechanism is arranged on the fixing mechanism. Specifically, the adjusting mechanism may include a driving assembly, a driving rod 201, and a moving rod 202. The driving assembly is connected to the moving rod 202 through the driving rod 201. The driving assembly drives the driving rod 201 to rotate, and the driving rod 201 drives the moving rod 202 to move up and down in the vertical direction. The moving rod 202 is connected to the concave body 4 to drive the concave body 4 to change its position. Since the moving rod 202 is connected to the driving rod 201, when the driving rod 201 rotates, it can drive the moving rod 202 to move up and down in the vertical direction. The two ends of the moving rod 202 are respectively connected to the driving rod 201 and the concave body 4. Thus, when the moving rod 202 moves up and down, it can drive the concave body 4 to rotate in a circular motion around the fixing pin of the concave body 4 to change the gap with the drum (not shown), thereby adjusting the position of the concave to adapt to different shapes of crops.

[0031] The overall structure of the threshing concave adjusting device is simple. By adjusting the up and down position of the moving rod 202, stepless position adjustment of the concave body 4 can be achieved, solving the problem of poor adjustment accuracy of the manual and hydraulic concave adjusting devices. At the same time, since the overall device only adopts the combination of the driving assembly, the driving rod 201, and the moving rod 202 of the adjusting mechanism, the overall occupied space is small, it is not restricted by space, energy is saved, and in addition, the structure is simple and the cost is low, and it can be applied to a variety of working conditions.

[0032] Preferably, as Figures 1 to 4As shown, in the embodiment, the driving assembly may include a driving member 203 and a transmission member. The driving member 203 drives the driving rod 201 to rotate through the transmission member. Specifically, the transmission member may include a transmission gear 204, a worm transmission member 205, and a swinging member 206. The transmission gear 204 may be a common gear structure, such as a straight tooth, a helical tooth, a herringbone tooth, an internal gear, and a planetary gear, etc. The worm transmission member 205 and the swinging member 206 may form a worm and worm gear transmission connection structure. The worm transmission member 205 may be a common worm, and the swinging member 206 may form a quarter gear structure. A plurality of teeth capable of meshing with the worm transmission member 205 are provided along the outer periphery of the swinging member 206. The transmission gear 204 is connected to the driving member 203, the worm transmission member 205 is meshed and connected to the swinging member 206 through the teeth, and the swinging member 206 is connected to the driving rod 201. The driving member 203 may be a rotary motor. The output end of the rotary motor may be connected to the transmission gear 204 through a speed reducer. The transmission gear 204 is connected to the worm transmission member 205 so that the driving member 203 can drive the worm transmission member 205 to rotate. The rotation of the worm transmission member 205 drives the swinging member 206 to swing reciprocally to realize the driving rod 201 to rotate clockwise or counterclockwise, and further drive the moving rod 202 to move downward or upward.

[0033] Preferably, as Figures 1 to 4 shown, in the embodiment, the fixing mechanism may include a separating chamber cover plate 101, a first support seat 102, and a transition sleeve 103. The separating chamber cover plate 101 may be the cover plate of the separating chamber of the harvester. The first support seat 102 is used to support the driving rod 201, and the transition sleeve 103 is used to assist in supporting the moving rod 202. Both the first support seat 102 and the transition sleeve 103 are provided on the separating chamber cover plate 101. The driving rod 201 is provided on the separating chamber cover plate 101 through the first support seat 102, and the moving rod 202 is provided on the separating chamber cover plate 101 through the transition sleeve 103. The first end of the moving rod 202 is connected to the driving rod 201, and the second end of the moving rod 202 penetrates through the separating chamber cover plate 101. The second end of the moving rod 202 penetrates through the separating chamber cover plate 101 to realize the connection with the concave plate body 4. The transition sleeve 103 can be compressed and elongated, and thus the transition sleeve 103 can move together with the moving rod 202.

[0034] Preferably, as Figures 1 to 4 shown, in the embodiment, the fixing mechanism may further include a support plate 104. The support plate 104 is provided on the separating chamber cover plate 101 and is provided on both sides of the transition sleeve 103 for assisting in supporting the transition sleeve 103.

[0035] Preferably, as Figures 1 to 4As shown, in the embodiment, the fixing mechanism may further include a second support base 105, and the driving assembly is disposed on the second support base 105. The second support base 105 may be a plurality of fixing plates connected to each other, and the driving member 203, the transmission gear 204, and the worm transmission member 205 of the driving assembly are all disposed on the second support base 105.

[0036] Preferably, as Figures 1 to 4 As shown, in the embodiment, the threshing concave adjusting device may further include an angle measuring assembly. The angle measuring assembly may include a measuring bracket 301, a measuring connecting rod 303, and an angle sensor 302. The measuring bracket 301 is disposed on the separating chamber cover plate 101 of the fixing mechanism. The measuring bracket 301 is located at the side of the driving assembly. The angle sensor 302 is disposed on the measuring bracket 301, and the angle sensor 302 is connected to the driving assembly through the measuring connecting rod 303. The angle measuring assembly can measure the swinging angle of the swinging member 206 to know the angle at this time, and then obtain the opening and closing angle between the concave body 4 and the drum at this time, so as to adapt to the gap adjustment of the concave body 4 under various working conditions.

[0037] Preferably, as Figures 1 to 4 As shown, in the embodiment, the adjusting mechanism may further include a concave connecting slider head 207. The concave connecting slider head 207 is disposed at the second end of the moving rod 202. The moving rod 202 is connected to the concave body 4 through the concave connecting slider head 207. The concave connecting slider head 207 can be used as a connecting member to realize the connection between the adjusting mechanism and the concave body 4.

[0038] Preferably, as Figures 1 to 4 As shown, in the embodiment, the driving rod 201 is connected to the moving rod 202 through a connecting member. The connecting member includes a connecting plate 208 and a pin shaft 209. The first end of the connecting plate 208 is connected to the driving rod 201, and the second end of the connecting plate 208 is connected to the moving rod 202 through the pin shaft 209. The second end of the connecting plate 208 can be pivotally connected to the moving rod 202 through the pin shaft 209, and the first end of the connecting plate 208 is fixedly connected to the driving rod 201. Thus, when the driving rod 201 rotates, the moving rod 202 is driven to move up and down through the connecting plate 208 and the pin shaft 209.

[0039] Preferably, as Figures 1 to 4 As shown, in the embodiment, the number of the first support bases 102 and the number of the moving rods 202 are both multiple, for example, Figure 1Two of them, two first support seats 102 are respectively arranged at both ends of the driving rod 201, so that the driving rod 201 is erected. A plurality of first support seats 102 are sequentially arranged on the separation chamber cover plate 101. A plurality of moving rods 202 are sequentially arranged on the separation chamber cover plate 101, and the driving rod 201 passes through the plurality of first support seats 102 and the plurality of moving rods 202 to achieve fixation and drive the plurality of moving rods 202 to move simultaneously.

[0040] The working process of the threshing concave adjusting device is as follows: The user transmits an instruction to the driving member 203, and the driving member 203 drives the worm transmitting member 205 and the swinging member 206 to move through the transmission gear 204. The swinging member 206 drives the driving rod 201 to rotate. When the driving rod 201 rotates, it drives the moving rod 202 to move up and down in the vertical direction, and then drives the concave body 4 to move through the concave connecting slider head 207. When the concave body 4 moves with the moving rod 202, it can rotate in a circular motion around the fixed axis, so as to change the distance between the concave body 4 and the drum.

[0041] The overall structure of the threshing concave adjusting device is simple, which can effectively simplify the complexity of the concave adjusting mechanism, facilitate installation and processing, can reduce the machining accuracy of parts, save machining, assembly and maintenance costs. By adjusting the up and down position of the moving rod, stepless position adjustment of the concave body can be achieved, solving the problem of poor adjustment accuracy of the manual and hydraulic concave adjusting devices. At the same time, since the overall device only adopts the combination of the driving component, the driving rod and the moving rod of the adjusting mechanism, the overall occupied space is small, not restricted by space, energy is saved, and in addition, the structure is simple and the cost is low, and it can be applied to a variety of working conditions.

[0042] In addition, according to the second aspect of the present invention, a harvester is provided, and the harvester includes the threshing concave adjusting device as described above. During the use of the harvester, by installing the threshing concave adjusting device, the distance between the concave body 4 and the drum can be adjusted, so as to meet the requirement that the harvester can simultaneously harvest crops of different shapes.

[0043] Finally, it should be noted that the above-described embodiments are only specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, rather than limiting it. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present application can still modify the technical solutions described in the foregoing embodiments or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A threshing concave adjustment device for a harvester, the harvester comprising a concave body, characterized in that: The threshing concave adjustment device comprises: Fixed mechanism; The adjusting mechanism is arranged on the fixing mechanism, and the adjusting mechanism includes a driving assembly, a driving rod and a moving rod. The driving assembly is connected to the moving rod through the driving rod, the driving assembly drives the driving rod to rotate, and the driving rod drives the moving rod to move up and down in a vertical direction. The moving rod is connected to the concave plate body to drive the concave plate body to change its position.

2. The threshing concave adjustment device according to claim 1, characterized in that: The driving assembly includes a driving member and a transmission component, and the driving member drives the driving rod to rotate through the transmission component; The transmission component includes a transmission gear, a worm transmission member and a swinging member, the transmission gear is connected to the driving member, the outer periphery of the swinging member is provided with gear teeth, the worm transmission member is meshed and connected with the swinging member through the gear teeth, and the swinging member is connected to the driving rod.

3. The threshing concave adjustment device according to claim 1, characterized in that: The fixing mechanism includes a separation chamber cover, a first support seat and a transition sleeve, the first support seat and the transition sleeve are both arranged on the separation chamber cover, the driving rod is arranged on the separation chamber cover through the first support seat, the moving rod is arranged on the separation chamber cover through the transition sleeve, the first end of the moving rod is connected to the driving rod, and the second end of the moving rod passes through the separation chamber cover.

4. The threshing concave adjustment device according to claim 3, characterized in that: The fixing mechanism further comprises a support plate, wherein the support plate is arranged on the separation chamber cover plate, and the support plate is arranged on both sides of the transition sleeve.

5. The threshing concave adjustment device according to claim 3, characterized in that: The fixing mechanism further comprises a second supporting seat, and the driving assembly is arranged on the second supporting seat.

6. The threshing concave adjustment device according to claim 1, characterized in that: The threshing concave adjustment device also includes an angle measuring component, which includes a measuring bracket, a measuring connecting rod and an angle sensor. The measuring bracket is arranged on the fixing mechanism, the measuring bracket is located on the side of the driving component, the angle sensor is arranged on the measuring bracket, and the angle sensor is connected to the driving component through the measuring connecting rod.

7. The threshing concave adjustment device according to claim 1, characterized in that: The adjusting mechanism further comprises a concave plate connecting sliding rod head, wherein the concave plate connecting sliding rod head is arranged at the second end of the moving rod, and the moving rod is connected to the concave plate body through the concave plate connecting sliding rod head.

8. The threshing concave adjustment device according to claim 1, characterized in that: The driving rod is connected to the moving rod through a connecting piece, and the connecting piece includes a connecting plate and a pin shaft. The first end of the connecting plate is connected to the driving rod, and the second end of the connecting plate is connected to the moving rod through the pin shaft.

9. The threshing concave adjustment device according to claim 3, characterized in that: The number of the first support seats and the number of the moving rods are both multiple, and the multiple first support seats are sequentially arranged on the separation chamber cover plate, and the multiple moving rods are sequentially arranged on the separation chamber cover plate, and the driving rod passes through the multiple first support seats and the multiple moving rods.

10. A harvester, characterized in that: The harvester comprises the threshing concave adjustment device according to any one of claims 1 to 9.

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