Straw walking wheel, straw walking wheel assembly and harvester

Abstract

The utility model provides a straw walking wheel, a straw walking wheel assembly and a harvester, and relates to the technical field of harvesters. According to the straw walking wheel provided by the utility model, the plurality of amplitude discs are arranged in the cavity defined by the plurality of panels along the axial direction of the transmission shaft, and the two amplitude discs on the outermost side in the axial direction are in key connection with the transmission shaft. Therefore, compared with the prior art, according to the straw walker wheel provided by the embodiment of the invention, the two radial discs on the outermost side in the axial direction are provided as the connecting positions connected to the transmission shaft, and the straw walker wheel is different from the mode that only the radial disc in the middle serves as the connecting position of the transmission shaft in the prior art; the straw walker wheel provided by the embodiment of the invention has a larger structural stress point and is better in instant overload bearing capacity and reliability.

Description

Technical Field

[0001] The present application relates to the technical field of harvesters, and more particularly to a straw walker, a straw walker assembly and a harvester. Background Art

[0002] As cultivated land begins to show large-scale and standardization, farmers' crop planting and harvesting become more professional. The demand for mid- to high-end harvesting machinery in the agricultural machinery market has emerged. Agricultural machinery operators begin to pursue large-scale harvesting machinery with large feeding capacity, fast operating speed, comfort and reliability. At the same time, with the improvement of the service awareness of agricultural machinery operators and the cost awareness of farmers, the market has put forward higher requirements for the product performance of large-scale harvesting machinery.

[0003] The straw walker assembly, as an important structural component in the straw walker type, has both the functions of transmission and material guiding. The straw walker type in a combine harvester needs to be equipped with a straw walker assembly. The straw walker mainly includes a transmission shaft, a spoke plate and a panel. Transmission wheels are matched at both ends of the transmission shaft in the middle to transmit the power from the engine, and distribute the power to the cross bridge, the fan and the sieve box of the large-scale harvesting machinery, etc. A straw walker cylinder is designed on the outside, which is a box-type closed structure, and realizes the grasping of crops by means of the edges extending along the axial direction.

[0004] Currently, all straw walkers are of welded structures. The spoke plates are welded to each other between the spoke plates and the panels, and the straw walker cylinder and the transmission shaft are only positioned and fastened by bolts at the position of the middle spoke plate. This results in a small structural stress point, low tolerance to instantaneous overload, and poor reliability. Utility Model Content

[0005] In view of this, the present application provides a straw walker, a straw walker assembly and a harvester, aiming to solve the above technical problems to a certain extent.

[0006] The first aspect of the present application provides a straw walker, which includes a transmission shaft, a plurality of spoke plates and a plurality of panels, and the transmission shaft has an axial direction;

[0007] Wherein, the plurality of panels surround the outside of the side part of the transmission shaft to form a cavity for accommodating a part of the transmission shaft, and both ends of the transmission shaft are located outside the cavity;

[0008] Wherein, the plurality of spoke plates are sleeved on the side part of the transmission shaft at intervals along the axial direction, and the plurality of spoke plates are located in the cavity;

[0009] Both of the two outermost spoke plates in the axial direction are key-connected to the transmission shaft.

[0010] On the basis of the above technical solutions, preferably, each of the plurality of spoke plates is detachably connected to the plurality of panels.

[0011] Based on any of the above technical solutions, preferably, the amplitude disc includes a plurality of edges corresponding to the plurality of panels one by one, and the edges are detachably connected to the corresponding panels.

[0012] Based on any of the above technical solutions, preferably, the straw walker further includes a plurality of first bolts provided corresponding to each of the edges, the plurality of first bolts are arranged at intervals along the extending direction of the edge, and the plurality of first bolts connect the edge and the corresponding panel.

[0013] Based on any of the above technical solutions, preferably, the amplitude disc between the two outermost amplitude discs in the axial direction has a clearance fit with the transmission shaft.

[0014] Based on any of the above technical solutions, preferably, the straw walker further includes two clamping rings respectively provided corresponding to the two outermost amplitude discs in the axial direction, the clamping rings are located outside the corresponding amplitude discs in the axial direction, and the clamping rings are sleeved outside the keys of the corresponding amplitude discs.

[0015] Based on any of the above technical solutions, preferably, adjacent panels are detachably connected.

[0016] Based on any of the above technical solutions, preferably, the straw walker further includes a plurality of second bolts arranged for adjacent panels, the plurality of second bolts are arranged at intervals along the connection position of the adjacent panels, and the second bolts penetrate through the adjacent panels to connect the adjacent panels.

[0017] Based on any of the above technical solutions, preferably, adjacent panels are detachably connected.

[0018] The second aspect of the present application provides a straw walker assembly, and the straw walker assembly includes the straw walker as described above.

[0019] The third aspect of the present application provides a harvester, and the harvester includes the straw walker assembly as described above.

[0020] According to the straw walker provided by the present application, a plurality of amplitude discs are provided and arranged axially along the transmission shaft inside the cavity surrounded by a plurality of panels, and the two outermost amplitude discs in the axial direction are both key-connected to the transmission shaft. Thus, compared with the prior art, the straw walker provided by the embodiments of the present application provides the outermost amplitude disc in the axial direction as the connection position to the transmission shaft, different from only using the middle amplitude disc as the connection position to the transmission shaft in the prior art. The straw walker provided by the embodiments of the present application has more structural stress points and better instantaneous overload tolerance and reliability.

[0021] To make the above objects, features, and advantages of the present application more obvious and understandable, the following provides preferred embodiments in conjunction with the accompanying drawings and describes them in detail as follows. Brief Description of the Drawings

[0022] To more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0023] Figure 1 The schematic diagram shows a three-dimensional view of a partial structure of a straw wheel provided according to an embodiment of the present application.

[0024] Reference Signs:

[0025] 10 - transmission shaft; 20 - disc; 21 - disc body; 22 - edge; 30 - panel; 31 - cavity; 40 - first bolt; 50 - hoop; 60 - second bolt. Detailed Description of the Embodiments

[0026] The following will clearly and completely describe the technical solutions of the present application in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.

[0027] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and 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 therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" 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 communication inside two elements. 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 circumstances.

[0029] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0030] According to the first aspect of the embodiments of the present application, a straw-walking wheel is provided. The structure and working principle of the straw-walking wheel will be specifically described below in conjunction with Figure 1 Specifically describe the structure and working principle of the straw-walking wheel.

[0031] According to the straw-walking wheel provided by the embodiments of the present application, the straw-walking wheel includes a transmission shaft 10, a plurality of disk plates 20, and a plurality of panels 30. The transmission shaft 10 has an axial direction. In an embodiment, the plurality of panels 30 are arranged around the outside of the side portion of the transmission shaft 10 to form a cavity 31 for accommodating a part of the transmission shaft 10, and both ends of the transmission shaft 10 are located outside the cavity 31. In an embodiment, the two outermost disk plates 20 located in the axial direction are both key-connected to the transmission shaft 10.

[0032] Thus, according to the straw-walking wheel provided by the embodiments of the present application, a plurality of disk plates 20 are provided, and these disk plates 20 are arranged along the axial direction of the transmission shaft 10 inside the cavity 31 surrounded by the plurality of panels 30. The two outermost disk plates 20 located in the axial direction are both key-connected to the transmission shaft 10. In this way, compared with the prior art, the straw-walking wheel provided by the embodiments of the present application provides the two outermost disk plates 20 in the axial direction as the connection positions connected to the aforementioned transmission shaft 10, which is different from the prior art where only the middle disk plate 20 is used as the connection position connected to the transmission shaft 10. The straw-walking wheel provided by the embodiments of the present application has more structural stress points and better instantaneous overload tolerance and reliability.

[0033] In an embodiment, the setting method of the cavity 31 formed by surrounding the plurality of panels 30 can be similar to the existing method. For example, the edges of two adjacent panels 30 are connected together and are angled, so as to form a ridge of the straw-walking wheel protruding outward at the connection of the two panels 30. In an embodiment, among the aforementioned plurality of panels 30, adjacent panels 30 can also be connected in a detachable manner, so that the cavity 31 formed by surrounding the plurality of panels 30 here can be opened during the maintenance of the straw-walking wheel. The specific setting method will be specifically described in the subsequent description.

[0034] In an embodiment, each of the plurality of webs 20 described above can be detachably connected to the plurality of panels 30 described above, such as by bolt connection. In an embodiment, whether it is the detachable connection between the upper web and the plurality of panels 30, or the detachable connection between the panels 30, the "detachable connection" referred to herein means connecting two parts of components together by using one or several connection means. Subsequently, when it is necessary to separate these two parts of components, the two parts of components can be separated again without damaging these two parts of components and the components participating in the connection among one or several connection means. It can be foreseen that when it is necessary to recombine these two parts of components again, these two parts of components can be connected together by the foregoing one or several connection means. Here, as an example of a specific detachable connection, it can be, for example, a snap connection where a snap projection is adapted to a groove, or it can be, for example, a threaded connection using fasteners such as bolts and nuts. The specific detachable form in this article will be described in the subsequent description.

[0035] According to the straw walker wheel provided by the embodiment of the present application, the web 20 can include a plurality of edge portions 22 corresponding one-to-one to the plurality of panels 30 described above, and the edge portions 22 can be detachably connected to the corresponding panels 30. Since the structure formed by the plurality of panels 30 is a regular prism or approximately a regular prism, the number of the edge portions 22 of the web being the same as the number of the panels 30 can enable each edge portion 22 of the web to have a corresponding panel 30 connected thereto, thereby increasing the number of connection positions between the web and the panels 30, and further facilitating improving the connection reliability between the web and the panels 30.

[0036] In an embodiment, according to the straw walker wheel provided by the embodiment of the present application, the straw walker wheel can further include a plurality of first bolts 40 provided corresponding to each edge portion 22. The foregoing plurality of first bolts 40 can be arranged at intervals along the extending direction of the edge portion 22, and the foregoing plurality of first bolts 40 can connect the edge portion 22 and the corresponding panel 30.

[0037] In an embodiment, the web 20 can include a disk body 21 and an edge portion 22 formed by bending relative to the disk body 21. Refer to Figure 1 , in an embodiment, the edge portion 22 can be perpendicular to the disk body 21, for example. In an embodiment, the foregoing plurality of first bolts 40 can be provided on each edge portion 22. Specifically, along the extending direction of the edge portion 22, the edge portion 22 can have a plurality of through holes, and a plurality of through holes are correspondingly provided on the panel 30 corresponding to the edge portion 22. The number of the two groups of through holes is the same and the positions correspond to each other. Then, an equal number of first bolts 40 are used to penetrate through the two corresponding through holes, and the first bolts 40 can be locked by nuts on the other side.

[0038] As an example, the number of through holes included in the above two groups of through holes can both be three, and the number of the above first bolts 40 can also be three, for example.

[0039] In the embodiment, according to the draft-moving wheel provided in the embodiment of the present application, when the draft-moving wheel is disassembled and maintained, the connection relationship between the web disc 20 and the above-mentioned multiple panels 30 can be released, and the connection relationship with the transmission shaft 10 can be released, so that the web disc 20 can be removed from the draft-moving wheel for replacement and maintenance. In the embodiment, the two outermost web discs 20 in the axial direction are connected to the transmission shaft 10 by key connection, which improves the reliability of the transmission shaft 10 transmitting power to the web disc 20 on the one hand, and also facilitates the disassembly and maintenance of the web disc 20 from the transmission shaft 10 on the other hand.

[0040] According to the draft-pulling wheel provided in the embodiment of the present application, the draft-pulling wheel may further include two hoops 50 respectively arranged corresponding to the two outermost webs 20 located in the axial direction, the hoops 50 may be located on the outer side of the corresponding webs 20 in the axial direction, and the hoops 50 may be sleeved on the outer side of the key of the corresponding webs 20.

[0041] In the embodiment, the clamp 50 can play two roles. On the one hand, the clamp 50 is on the outer side of the corresponding flange 20 in the axial direction, so as to play a role of limiting, and can prevent the flange 20 from moving axially outward. On the other hand, when the transmission shaft 10 and the flange 20 are connected by a flat key, the clamp 50 can also be sleeved on the outer side of the flat key to increase the stability of the flat key. In addition, in the embodiment, the flange 20 and the transmission shaft 10 can also be connected by a spline for transmission.

[0042] In the embodiment, among the plurality of webs 20 , the web 20 between the two outermost webs 20 in the axial direction is clearance-fitted with the transmission shaft, that is, the hole of the web 20 is clearance-fitted with the transmission shaft 10 .

[0043] As an example, in the embodiment, the number of the webs 20 may be, for example, three, and the number of the panels 30 may be, for example, four.

[0044] In an embodiment, as mentioned in the above description, adjacent panels 30 are detachably connected. As an example, the edge 22 of the panel 30 can be bent, and then a second bolt 60 passes through the bent portion and the adjacent panel 30, and then a nut is used to lock the second bolt 60. The number of the second bolts 60 can be multiple. In the example in the figure, it can be, for example, 7, of course, it can also be, for example, 8, 9 or even more.

[0045] Furthermore, in the embodiments, Figure 1The structure of the straw walker shown in the figure is a schematic diagram of the internal structure of the straw walker exposed after omitting a panel 30. In fact, according to the embodiment of the present application, the straw walker is a relatively closed structure. In the embodiment, the embodiment of the present application is equivalent to providing a brand-new closed straw walker. By changing the welded connection between the panel 30 and the panel 30, and between the panel 30 and the amplitude disk 20 to a bolt connection, and changing the intermediate bolt connection between the amplitude disk 20 and the transmission shaft 10 to a connection where the two outermost amplitude disks 20 in the axial direction are connected by a hoop 50 using a flat key, the reliability of the straw walker is effectively improved.

[0046] According to the second aspect of the embodiment of the present application, a straw walker assembly is provided. The straw walker assembly may include the straw walker as described above and also includes the beneficial effects as described above, which will not be elaborated here. The straw walker assembly may further include, for example, drive wheels provided at both ends of the transmission shaft 10.

[0047] According to the third aspect of the embodiment of the present application, a harvester is provided. The harvester includes the straw walker assembly as described above and also includes the beneficial effects as described above, which will not be elaborated here.

[0048] The above are only the preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Any equivalent structural transformation made by using the specification and drawings of the present application under the innovative concept of the present application, or directly / indirectly applied in other related technical fields, is included in the protection scope of the present application.

Claims

1. A draft-removing wheel, characterized in that: The draft-pulling wheel comprises a transmission shaft, a plurality of webs and a plurality of panels, wherein the transmission shaft has an axial direction; The plurality of panels are arranged around the outside of the side of the transmission shaft to form a cavity for accommodating part of the transmission shaft, and the two ends of the transmission shaft are located outside the cavity; Wherein, the plurality of webs are sleeved on the side of the transmission shaft at intervals along the axial direction, and the plurality of webs are located in the cavity; The two outermost webs in the axial direction are both connected with the transmission shaft key.

2. The draft-eliminating wheel according to claim 1, characterized in that: Each of the plurality of webs is removably connected to the plurality of panels.

3. The draft-eliminating wheel according to claim 2, characterized in that: The web plate includes a plurality of edge portions corresponding to the plurality of panels one by one, and the edge portions are detachably connected to the corresponding panels.

4. The draft-eliminating wheel according to claim 3, characterized in that: The draft-removing wheel further includes a plurality of first bolts arranged corresponding to each of the edge portions, the plurality of first bolts being arranged at intervals along an extending direction of the edge portions, and the plurality of first bolts connecting the edge portions and the corresponding panel.

5. The draft-eliminating wheel according to claim 1, characterized in that: The webs between the two webs located at the outermost sides in the axial direction are clearance-fitted with the transmission shaft.

6. The draft-eliminating wheel according to claim 1, characterized in that: The draft-pulling wheel also includes two hoops respectively arranged corresponding to the two outermost webs in the axial direction, the hoops are located on the outer sides of the corresponding webs in the axial direction, and the hoops are sleeved on the outer sides of the keys of the corresponding webs.

7. The draft-eliminating wheel according to claim 1, characterized in that: Adjacent panels are detachably connected.

8. The draft-eliminating wheel according to claim 7, characterized in that: The draft control wheel further includes a plurality of second bolts arranged for adjacent panels, wherein the plurality of second bolts are spaced apart along connection positions of adjacent panels, and the second bolts penetrate through adjacent panels to connect adjacent panels.

9. A draft-moving wheel assembly, characterized in that: The draft-moving wheel assembly comprises the draft-moving wheel according to any one of claims 1 to 8.

10. A harvester, characterized in that: The harvester includes the straw-scraping wheel assembly of claim 9.

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