Harvester middle rotating shaft transmission structure and harvester

Abstract

The utility model provides a harvester middle rotating shaft transmission structure and a harvester. The harvester middle rotating shaft transmission structure comprises a middle rotating shaft, an input belt wheel, a hoop and a plummer block. The middle rotating shaft is connected with the input belt wheel through an involute spline housing; and first gaskets and / or second gaskets are arranged between the hoop and the involute spline housing and between the mounted bearing and the involute spline housing. According to the involute spline, the load distribution uniformity is good, the number of teeth is large, the contact area between the involute spline and a middle rotating shaft is large, and then large-torque transmission can be achieved; besides, the involute spline has excellent centering performance and guidance quality, so that the middle rotating shaft can move in the axial direction, and a transmission surface is convenient to adjust; in addition, a point position structure formed by combining the first gasket and / or the second gasket and the hoop is utilized, so that the defect that an existing involute spline axial limiting structure is unreliable in application at the rotating shaft part is overcome, and the transmission surface can be conveniently adjusted.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery and equipment, and in particular to a harvester intermediate shaft transmission structure and a harvester. Background Art

[0002] Figure 1-Figure 3 An existing harvester intermediate shaft transmission structure is shown, which includes an intermediate rotating shaft 1', a seat bearing 2', an input pulley 3', a first output pulley 4', a second output pulley 5', and a third output pulley 6'; wherein, both ends of the intermediate rotating shaft 1' are connected to the vehicle body through the seat bearing 2'; wherein, the input pulley 3', the first output pulley 4', and the second output pulley 5' are arranged at the first end of the intermediate rotating shaft 1'; specifically, the input pulley 3' is fixed to the intermediate rotating shaft 1' through a flat key 7', and torque transmission is achieved through the flat key 7'; the first output pulley 4' is fixed to the intermediate rotating shaft 1' through the flat key 7', and the second output pulley 5' is fixed to the input pulley 3'; in addition, a limiting structure of a clamp 8'+single bolt 9' is used to limit the axial direction of the intermediate rotating shaft 1'.

[0003] In actual use, the engine power inputs torque through the input pulley 3', and transmits power to the ear processing module (peeler) through the first output pulley 4' and the belt, transmits power to the stalk processing module (chopper) through the second output pulley 5' and the belt, and transmits power to the ear picking module (the middle rotating shaft of the harvesting platform) through the third output pulley 6' and the belt. That is, the middle rotating shaft 1' of the harvesting machinery is responsible for the power input and output of all working parts, and the transmitted torque is large. To ensure its reliability, the clamp 8' and the middle rotating shaft 1' adopt a transition fit, the flat key 7' and the middle rotating shaft 1' adopt a transition fit, and the input pulley 3' and the flat key 7' adopt a transition fit; however, this structure has the following shortcomings:

[0004] The transition fit between the clamp 8' and the intermediate rotating shaft 1' makes it difficult to disassemble and assemble the input pulley 3', and the axial sliding is difficult, making it inconvenient to adjust the transmission surface; in addition, the power transmission method using the flat key 7' is insufficient, and abnormal wear of the shaft and hub and rolling key failures often occur.

[0005] Therefore, there is an urgent need for a harvester intermediate shaft transmission structure and a harvester to solve the technical problems existing in the prior art to a certain extent. Utility Model Content

[0006] The purpose of the present application is to provide a harvester intermediate shaft transmission structure and a harvester, which can, to a certain extent, solve the problems of difficulty in disassembly and assembly of the input pulley and difficulty in axial sliding, and inconvenience in adjusting the transmission surface caused by the use of the harvester intermediate shaft transmission structure in the prior art; in addition, the use of a flat key power transmission method often leads to insufficient power transmission and technical problems such as abnormal wear of the shaft and hub and failure of the rolling key.

[0007] The present application provides a harvester intermediate shaft transmission structure; comprising an intermediate shaft, an input pulley, a hoop and a seat bearing;

[0008] The intermediate rotating shaft and the input pulley are connected by an involute spline sleeve;

[0009] The hoop and the seat bearing are respectively sleeved on the intermediate shaft and located on both sides of the involute spline sleeve;

[0010] A first washer and / or a second washer are provided between the clamp and the involute spline sleeve and between the seat bearing and the involute spline sleeve. The first washer and / or the second washer can adjust the position of the involute spline sleeve on the intermediate shaft to adjust the position of the transmission surface of the input pulley on the intermediate shaft.

[0011] In the above technical solution, advantageously, the thickness of the first washer is different from the thickness of the second washer, so that different combinations of the first washer and / or the second washer between the clamp and the involute spline sleeve and different combinations of the first washer and / or the second washer between the involute spline sleeves can adjust the position of the transmission surface on the intermediate rotating shaft.

[0012] In the above technical solution, preferably, the side wall of the intermediate shaft is provided with external splines, and the inner side wall of the involute spline sleeve is provided with internal splines;

[0013] The external spline and the internal spline form a spline fit so that the input pulley is fixed to the intermediate rotating shaft.

[0014] In the above technical solution, preferably, the involute spline sleeve and the input pulley are clearance-fitted.

[0015] In the above technical solution, preferably, the involute spline sleeve and the input pulley are connected by a first connecting member.

[0016] In the above technical solution, preferably, the number of the first connecting members connected is multiple, and the multiple first connecting members are arranged at equal intervals along the circumferential direction of the involute spline sleeve.

[0017] In the above technical solution, preferably, the harvester intermediate shaft transmission structure includes a second output pulley;

[0018] The second output pulley is clearance-matched with the input pulley and is connected via a second connecting member.

[0019] In the above technical solution, preferably, the number of the second connecting members is multiple, and the multiple second connecting members are arranged at equal intervals along the circumferential direction of the second output pulley.

[0020] In the above technical solution, preferably, the harvester intermediate shaft transmission structure further includes a first output pulley and a third output pulley;

[0021] The first output pulley and the third output pulley are respectively sleeved on the intermediate rotating shaft through flat keys.

[0022] The present application also provides a harvester, comprising the above-mentioned harvester intermediate shaft transmission structure.

[0023] Compared with the prior art, this application has the following beneficial effects:

[0024] The present application provides a harvester intermediate shaft transmission structure; comprising an intermediate shaft, an input pulley, a hoop and a seat bearing;

[0025] The intermediate rotating shaft and the input pulley are connected by an involute spline sleeve;

[0026] The hoop and the seat bearing are respectively sleeved on the intermediate shaft and located on both sides of the involute spline sleeve;

[0027] A first washer and / or a second washer are provided between the clamp and the involute spline sleeve and between the seat bearing and the involute spline sleeve. The first washer and / or the second washer can adjust the position of the involute spline sleeve on the intermediate shaft to adjust the position of the transmission surface of the input pulley on the intermediate shaft.

[0028] In summary, the present application is based on the fact that the input pulley has a large transmission torque, so an involute spline with high load-bearing capacity is used to connect the input pulley and the intermediate shaft. The involute spline has good load distribution uniformity and a large number of teeth, so that the contact area with the intermediate shaft is large, thereby achieving large torque transmission. Compared with the structure of the intermediate shaft and hub with abnormal wear and tear of the rolling key caused by the flat key connection method in the prior art, the present application can better meet the working requirements of the whole machine and the load increase requirements brought about by the upgrade of the working parts. In addition, since the involute spline has excellent centering and guiding properties, the intermediate shaft can be moved in the axial direction, making it convenient to adjust the transmission surface, thus solving the technical problems of the difficulty in disassembly and assembly and the inconvenience in adjusting the transmission surface caused by the flat key connection structure in the prior art. In addition, the point structure formed by the combination of the first washer and / or the second washer and the clamp avoids the disadvantage of the unreliable application of the existing involute spline axial limit structure in the shaft part, and can also achieve convenient adjustment of the transmission surface.

[0029] The present application also provides a harvester, comprising the above-mentioned harvester intermediate shaft transmission structure, and thus having all the beneficial effects of the harvester intermediate shaft transmission structure, which will not be elaborated in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 It is a harvester intermediate shaft transmission structure in the prior art;

[0032] Figure 2 for Figure 1 Side view at A in FIG.

[0033] Figure 3 for Figure 2 BB section view in;

[0034] Figure 4 for Figure 1 The structure diagram at A in ;

[0035] Figure 5 A schematic diagram of the structure of the intermediate shaft transmission structure of the harvester provided in this application;

[0036] Figure 6 A cross-sectional view of the transmission structure of the intermediate shaft of the harvester provided in this application;

[0037] Figure 7for Figure 6 Enlarged view of point C in the figure.

[0038] Figure markings: 1'-intermediate rotating shaft; 2'-seat bearing; 3'-input pulley; 4'-first output pulley; 5'-second output pulley; 6'-third output pulley; 7'-flat key; 8'-hoop; 9'-single bolt; 1-intermediate rotating shaft; 2-seat bearing; 3-input pulley; 4-first output pulley; 5-second output pulley; 6-third output pulley; 7-flat key; 8-hoop; 9-involute spline sleeve; 10-first bolt; 11-second bolt; 12-first washer; 13-second washer; 14-third bolt; 15-external spline. DETAILED DESCRIPTION

[0039] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0040] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0041] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0042] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0043] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0044] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0045] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0046] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0047] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0048] Embodiment 1

[0049] Combine the following Figure 4-Figure 6 A harvester intermediate shaft transmission structure provided in the present application is described in detail.

[0050] The present application provides a harvester intermediate shaft transmission structure; Figure 4-Figure 6 As shown, the harvester intermediate shaft transmission structure includes an intermediate shaft, an input pulley 3, a clamping hoop 8 and a seat bearing 2.

[0051] Specifically, the intermediate shaft preferably extends along the width direction of the vehicle body of the harvester.

[0052] Specifically, the input pulley 3 is sleeved on one end of the intermediate shaft along its length direction, and the input pulley 3 and the intermediate shaft are connected by an involute spline sleeve 9; Figure 5 and Figure 6 As shown, the input pulley 3 is sleeved on the left side of the intermediate shaft. Furthermore, the side wall of the input pulley 3 is formed as a transmission surface. The power of the engine is first transmitted to the input pulley 3, and the input pulley 3 transmits the force to the involute spline sleeve 9, and finally the involute spline sleeve 9 is connected to the intermediate shaft to realize the transmission of torque.

[0053] Specifically, the hoop 8 and the seat bearing 2 are respectively sleeved on the middle shaft and located on both sides of the involute spline sleeve 9; Figure 5 and Figure 6 As shown, the hoop 8 is located on the left side of the involute spline sleeve 9, and the seat bearing 2 is located on the right side of the involute spline sleeve 9.

[0054] Furthermore, the seat bearing 2 is connected to the body of the harvester, and the intermediate rotating shaft is hung on the body of the harvester by using the seat bearing 2.

[0055] Furthermore, the clamp 8 can limit the involute spline sleeve 9 in the axial direction of the intermediate shaft to prevent the involute spline sleeve 9 from moving along the axial direction of the intermediate shaft driven by the input pulley 3 when the engine drives the input pulley 3 to rotate, thereby ensuring the stability of the rotation of the input pulley 3.

[0056] Furthermore, the hoop 8 includes an open circular ring, a lug plate and a third bolt 14, wherein two lug plates are provided, and the two lug plates are respectively provided at the open ends of the open circular ring, and the third bolt 14 passes through the two lug plates in sequence. During installation, the third bolt 14 is firstly loosened from the two lug plates, and then the open circular ring is sleeved at a preset position on the intermediate rotating shaft, and finally the two lug plates are locked by the third bolt 14 to fix the hoop 8 to the intermediate rotating shaft. Preferably, the third bolt 14 is a single bolt or a double bolt.

[0057] Specifically, a first washer 12 and / or a second washer 13 are provided between the hoop 8 and the involute spline sleeve 9 and between the seat bearing 2 and the involute spline sleeve 9. Figure 7As shown, three first washers 12 and one second washer 13 are arranged between the hoop 8 and the involute spline sleeve 9 , and one second washer 13 is sleeved between the seat bearing 2 and the involute spline sleeve 9 .

[0058] Furthermore, the first washer 12 and / or the second washer 13 between the hoop 8 and the involute spline sleeve 9, and the first washer 12 and / or the second washer 13 between the seat bearing 2 and the involute spline sleeve 9, that is, the first washer 12 and / or the second washer 13 are arranged on both sides of the involute spline sleeve 9; the left side of the involute spline sleeve 9 is positioned on the left side by the hoop 8 and the first washer 12 and / or the second washer 13, and the right side of the involute spline sleeve 9 is positioned on the right side by the seat bearing 2 and the first washer 12 and / or the second washer 13, that is, the involute spline sleeve 9 can be firmly fixed to the intermediate shaft by using the hoop 8 and the first washer 12 and / or the second washer 13, the seat bearing 2 and the first washer 12 and / or the second washer 13, so as to limit the involute spline sleeve 9 in the axial direction.

[0059] Furthermore, during the force transmission process, the input pulley 3 needs to be adapted to the belt on the engine, that is, the teeth on the belt need to correspond one-to-one with the teeth on the input pulley 3, so as to ensure that the engine transmits the force and torque to the input pulley 3 through the belt; then in the actual installation process, it is necessary or may be necessary to fine-tune the position of the input pulley 3 on the intermediate shaft, and the present application can adopt the following method for fine-tuning: since the input pulley 3 is connected to the intermediate shaft through the involute spline sleeve 9, then when adjusting the transmission surface of the input pulley 3, it is also necessary to adjust the involute spline sleeve 9 in the middle. If the involute spline sleeve 9 is to be moved to the left, the number of the first washer 12 and / or the second washer 13 between the hoop 8 and the involute spline sleeve 9 is reduced, and the number of the first washer 12 and / or the second washer 13 between the seat bearing 2 and the involute spline sleeve 9 is increased; if the involute spline sleeve 9 is to be moved to the right, the number of the first washer 12 and / or the second washer 13 between the seat bearing 2 and the involute spline sleeve 9 is reduced, and the number of the first washer 12 and / or the second washer 13 between the hoop 8 and the involute spline sleeve 9 is increased.

[0060] In addition, it should be noted that the number of first washers 12 and / or second washers 13 between the clamp 8 and the involute spline sleeve 9 and the number of first washers 12 and / or second washers 13 between the seat bearing 2 and the involute spline sleeve 9 can be determined according to the adjustment needs of the transmission surface.

[0061] In summary, the present application is based on the fact that the input pulley 3 has a large transmission torque, so the input pulley 3 and the intermediate shaft are connected by an involute spline with high load-bearing capacity. The involute spline has good load distribution uniformity and a large number of teeth, so that the contact area with the intermediate shaft is large, thereby achieving large torque transmission. Compared with the structure of the intermediate shaft and hub with abnormal wear and tear of the rolling key caused by the connection method of the flat key 7 in the prior art, the present application can better meet the working requirements of the whole machine and the load increase requirements brought by the upgrade of the working parts. In addition, since the involute spline has excellent centering and guiding properties, the intermediate shaft can be moved in the axial direction, making it convenient to adjust the transmission surface, and thus solving the technical problems of the difficulty of disassembly and assembly and the inconvenience of adjusting the transmission surface in the prior art using the flat key 7 connection structure. In addition, the point structure formed by the combination of the first washer 12 and / or the second washer 13 and the hoop 8 avoids the disadvantage of the unreliable application of the existing involute spline axial limit structure in the shaft part, and can also achieve convenient adjustment of the transmission surface.

[0062] In this embodiment, the thickness of the first washer is different from the thickness of the second washer, so that different combinations of the first washer and / or the second washer between the clamp and the involute spline sleeve and different combinations of the first washer and / or the second washer between the involute spline sleeves can adjust the position of the transmission surface on the intermediate rotating shaft.

[0063] Furthermore, combined with Figure 4-Figure 6 As shown, the diameter of the first washer 12 is the same as the diameter of the second washer 13, so as to meet the assembly requirements. In addition, the thickness of the first washer 12 is greater than the thickness of the second washer 13, and the use of the first washer 12 and the second washer 13 can be adjusted at will according to the adjustment requirements of the transmission surface.

[0064] In this embodiment, further, combined with Figure 4-Figure 6 As shown, the side wall of the intermediate shaft is provided with an external spline 15, and the inner side wall of the involute spline sleeve 9 has an internal spline; the external spline 15 and the internal spline form a spline fit to fix the input pulley 3 to the intermediate shaft.

[0065] Furthermore, the cooperation between the external spline 15 and the internal spline increases the contact area between the involute spline sleeve 9 and the intermediate shaft, thereby achieving high torque transmission.

[0066] In this embodiment, further, combined with Figure 4-Figure 6 As shown, there is a clearance fit between the involute spline sleeve 9 and the input pulley 3. This clearance fit enables the involute spline sleeve 9 and the input pulley 3 to be positioned in a stopper manner, thereby playing a radial positioning role.

[0067] In this embodiment, further, combined with Figure 4-Figure 6As shown, the involute spline sleeve 9 is connected to the input pulley 3 by a first connecting member. Preferably, the first connecting member is a first bolt 10.

[0068] Specifically, the involute spline sleeve 9 includes a sleeve shaft and a connecting plate (the connecting plate is annular), the connecting plate is sleeved on the sleeve shaft, the inner wall of the sleeve shaft has an internal spline and is spline-matched with the external spline 15 of the intermediate shaft, and the connecting plate is connected to the input pulley 3 by a first bolt 10.

[0069] Furthermore, there are multiple first bolts 10, and the multiple first bolts 10 are arranged at equal intervals along the circumferential direction of the connecting plate.

[0070] Preferably, eight first bolts 10 are provided, and the eight first bolts 10 are arranged at equal intervals along the circumferential direction of the connecting plate.

[0071] More preferably, the first bolt 10 is an M10 first bolt 10 .

[0072] In this embodiment, further, combined with Figure 4-Figure 6 As shown, the harvester intermediate shaft transmission structure includes a second output pulley 5; the second output pulley 5 is clearance-matched with the input pulley 3 and connected via a second connecting member. Preferably, the second connecting member is a second bolt 11; more preferably, the second bolt 11 is an M12 second bolt 11.

[0073] Further, there are multiple second bolts 11, which are arranged at equal intervals along the circumferential direction of the second output pulley 5. Preferably, there are 6 second bolts 11, which are arranged at equal intervals along the circumferential direction of the second output pulley 5.

[0074] In the actual working process, the second output pulley 5 is connected to the ear processing module through a belt, and power is transmitted to the ear processing module through the second output pulley 5. The ear processing module here refers to the driving wheel of the husking machine, and the husking machine is used to husk corn. It is worth noting that the ear processing module is not within the scope of protection of the present application and is also understandable to those skilled in the art, so it will not be elaborated on here.

[0075] In this embodiment, further, combined with Figure 4-Figure 6 As shown, the transmission structure of the harvester's intermediate shaft further includes a first output pulley 4 and a third output pulley 6; the first output pulley 4 and the third output pulley 6 are respectively sleeved on the intermediate shaft through a flat key 7.

[0076] In the actual working process, the first output pulley 4 is connected to the stalk processing module through a belt, and the power is transmitted to the stalk processing module through the first output pulley 4. The stalk processing module here refers to the driving wheel of the chopper, and the chopper is used to chop corn stalks; it is worth noting that the stalk processing module is not within the scope of protection of this application and is also understandable to those skilled in the art, so it will not be elaborated on here. The third output pulley 6 is connected to the ear picking module through a belt, and the power is transmitted to the ear picking module through the third output pulley 6. The ear picking module here refers to the rotating shaft in the middle of the cutting table, and the cutting table is used to harvest corn; it is worth noting that the ear picking module is not within the scope of protection of this application and is also understandable to those skilled in the art, so it will not be elaborated on here.

[0077] That is, the intermediate rotating shaft of the present application is supported by bearings 2 with seats at both ends, and input and output pulleys are respectively provided at both ends of the bearings 2. The engine power is transmitted to the intermediate rotating shaft through the input pulley 3, and the power is transmitted to the fruit cluster processing module, the stem processing module and the ear picking module through the first output pulley 4, the second output pulley 5, and the third output pulley 6 respectively.

[0078] In summary, the present application changes the connection structure of the high torque transmission part into an involute spline sleeve 9 with high transmission efficiency and strong stability, and simultaneously redesigns the axial positioning structure of the involute based on the working characteristics of the rotating shaft and combined with the connection characteristics of the involute spline, which not only retains the automatic centering characteristics of the involute spline, but also takes into account the convenience of adjusting the transmission surface, while ensuring the reliability of the axial positioning.

[0079] Embodiment 2

[0080] The present application also provides a harvester, comprising the above-mentioned harvester intermediate shaft transmission structure, and thus having all the beneficial effects of the harvester intermediate shaft transmission structure, which will not be elaborated in detail here.

[0081] Embodiment 3

[0082] This embodiment is different from the first embodiment in that the input pulley 3 is sleeved on one end of the intermediate shaft along its length direction, and the input pulley 3 and the intermediate shaft are connected by a rectangular spline sleeve.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A harvester intermediate shaft transmission structure; characterized in that: It includes an intermediate rotating shaft, an input pulley, a clamp and a seat bearing; The intermediate rotating shaft and the input pulley are connected by an involute spline sleeve; The hoop and the seat bearing are respectively sleeved on the intermediate shaft and located on both sides of the involute spline sleeve; A first washer and / or a second washer are provided between the clamp and the involute spline sleeve and between the seat bearing and the involute spline sleeve. The first washer and / or the second washer can adjust the position of the involute spline sleeve on the intermediate shaft to adjust the position of the transmission surface of the input pulley on the intermediate shaft.

2. The harvester intermediate shaft transmission structure according to claim 1, characterized in that: The thickness of the first washer is different from the thickness of the second washer, so that different combinations of the first washer and / or the second washer between the hoop and the involute spline sleeve and different combinations of the first washer and / or the second washer between the involute spline sleeves can adjust the position of the transmission surface on the intermediate rotating shaft.

3. The harvester intermediate shaft transmission structure according to claim 1, characterized in that: The side wall of the intermediate shaft is provided with external splines, and the inner side wall of the involute spline sleeve is provided with internal splines; The external spline and the internal spline form a spline fit so that the input pulley is fixed to the intermediate rotating shaft.

4. The harvester intermediate shaft transmission structure according to claim 1, characterized in that: The involute spline sleeve and the input pulley are clearance-matched.

5. The harvester intermediate shaft transmission structure according to claim 1, characterized in that: The involute spline sleeve and the input pulley are connected by a first connecting member.

6. The harvester intermediate shaft transmission structure according to claim 5, characterized in that: The first connecting members are connected in multiple numbers, and the multiple first connecting members are arranged at equal intervals along the circumferential direction of the involute spline sleeve.

7. The harvester intermediate shaft transmission structure according to claim 1, characterized in that: The harvester intermediate shaft transmission structure may include a second output pulley; The second output pulley is clearance-matched with the input pulley and is connected via a second connecting member.

8. The harvester intermediate shaft transmission structure according to claim 7, characterized in that: There are multiple second connecting members, and the multiple second connecting members are arranged at equal intervals along the circumferential direction of the second output pulley.

9. The harvester intermediate shaft transmission structure according to claim 1, characterized in that: The harvester intermediate shaft transmission structure also includes a first output pulley and a third output pulley; The first output pulley and the third output pulley are respectively sleeved on the intermediate rotating shaft through flat keys.

10. A harvester, characterized in that: The invention comprises the harvester intermediate shaft transmission structure as described in any one of claims 1 to 9.

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