Main clutch rotating arm assembly, main clutch tensioning structure and harvester

Abstract

The utility model relates to a main clutch rotating arm assembly, a main clutch tensioning structure and a harvester, the main clutch rotating arm assembly comprises a rotating arm, a rotating sleeve, a tensioning screw rod and a driving piece, and the rotating arm is rotationally arranged; the rotating sleeve is rotationally mounted at one end of the rotating arm, and the tensioning screw penetrates through the rotating sleeve; the driving piece is connected with one end of the tensioning screw rod and is used for driving the tensioning screw rod to drive the rotating arm to rotate; the tensioning screw rod is sleeved with a tensioning spring, and the two ends of the tensioning spring abut against one end of the rotating sleeve and one end of the tensioning screw rod respectively. The utility model has the beneficial effects of simple structure, reasonable design, convenient disassembly and replacement of each part, high maintenance efficiency, and guarantee of normal operation of users.

Description

Technical Field

[0001] The utility model relates to the technical field of harvesters, in particular to a main clutch rotating arm assembly, a main clutch tensioning structure and a harvester. Background Art

[0002] The working principle of the main clutch device of the current harvesting machinery is: the main clutch arm position is moved by the extension and retraction of the cylinder plunger, the tensioning wheel moves synchronously with the arm, and the main clutch belt is tightened and loosened accordingly, thereby realizing the transmission and cutting of the power of the working parts. The spring of the belt tensioning force provided by this solution is connected to the main clutch arm through a pull rod and a rotating pin. During the separation and connection of the arm, the pull rod rotates around the cylinder installation point. During the rotation process, if the rotating pin is stuck or has great resistance, the pull rod is subjected to abnormal force, resulting in wear and fracture of the pull rod and abnormal wear of the rotating pin. In addition, the fracture and abnormal wear of the pull rod and the rotating pin cause the main clutch to fail to work properly, and the user must stop the machine for replacement, which affects the user's benefits and causes great complaints from the user. Utility Model Content

[0003] The utility model provides a main clutch rotating arm assembly, a main clutch tensioning structure and a harvester, aiming to solve the problems in the prior art.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A main clutch pivot arm assembly comprises a pivot arm, a rotating sleeve, a tensioning screw and a driving member, wherein the pivot arm is rotatably arranged; the rotating sleeve is rotatably installed at one end of the pivot arm, and the tensioning screw passes through the rotating sleeve; the driving member is connected to one end of the tensioning screw and is used to drive the tensioning screw to drive the pivot arm to rotate; a tensioning spring is sleeved on the tensioning screw, and two ends of the tensioning spring are respectively abutted against the rotating sleeve and one end of the tensioning screw.

[0006] The beneficial effects of the utility model are as follows: the utility model has a simple structure, a reasonable design, and convenient disassembly and assembly of various components, which are convenient for replacement, high in maintenance efficiency, and guarantees normal operation of users.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, a notch is provided at one end of the rotating arm, and a gap is provided on one side of the notch; a mounting side plate is installed on one side of the rotating arm, and one end of the mounting side plate is flush with the other side of the notch; the rotating sleeve is rotatably installed between the notch and the mounting side plate.

[0009] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and ensuring the coaxiality between the rotating sleeve and the other side of the recess and the mounting hole on the mounting side plate.

[0010] Furthermore, two sides of the rotating sleeve are rotatably connected to the other side of the rotating arm and the mounting side plate through sliding bearing 1 respectively.

[0011] The beneficial effects of adopting the above further solution are simple structure and reasonable design. By arranging a sliding bearing, it is possible to prevent the rotating sleeve from rotating and getting stuck, thereby causing abnormal stress on the tensioning screw and the rotating sleeve, thereby ensuring smooth rotation.

[0012] Furthermore, the other end of the mounting side plate is rotatably connected to one side of the rotating arm via a rotating member and is positioned via an elastic pin.

[0013] The beneficial effect of adopting the above further solution is that the side plate can be easily installed and disassembled, and the sliding bearing can be easily replaced.

[0014] Furthermore, positioning holes are respectively provided on one side of the mounting side plate and the rotating arm. When the mounting side plate is rotated until the two positioning holes are opposite to each other, the elastic pin is inserted into the pair of positioning holes to fix the mounting side plate.

[0015] The beneficial effect of adopting the above further scheme is that the side plate can be easily installed and disassembled, the sliding bearing can be easily replaced, the operation is simple, and time and labor are saved.

[0016] Furthermore, the tensioning screw is slidably connected to the rotating sleeve via a second sliding bearing.

[0017] The beneficial effects of adopting the above further solution are simple structure and reasonable design. The provision of the second sliding bearing can improve the smoothness of the axial sliding of the tensioning screw during the movement of the rotating arm.

[0018] Furthermore, a limiting member is installed on the other end of the tensioning screw, and a separation spring is also provided on the sliding sleeve of the tensioning screw, and two ends of the separation spring are respectively in contact with the rotating sleeve and the limiting member.

[0019] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and better tensioning effect by using the separation spring in combination with the tensioning spring.

[0020] Furthermore, the driving member is a hydraulic cylinder, which is rotatably arranged and has a telescopic end fixedly connected to one end of the tensioning screw.

[0021] The beneficial effects of adopting the above further solution are simple structure and reasonable design. The hydraulic cylinder is used to provide external force to realize the movement of the tensioning screw and drive the rotating arm to rotate, so as to adjust the position of the tensioning wheel.

[0022] The utility model also relates to a main clutch tensioning structure, comprising a rotating shaft, a mounting frame, a tensioning wheel and the main clutch rotating arm assembly as described above, wherein the rotating shaft can rotate around its own axial direction, and the other end of the rotating arm is fixedly connected to one end of the rotating shaft; the mounting frame is fixedly installed on the other end of the rotating shaft, and the tensioning wheel is rotatably installed on the mounting frame.

[0023] The beneficial effect of adopting the above further solution is that the utility model also provides a main clutch tensioning structure, which has a simple structure, a reasonable design, and convenient disassembly and assembly of each component, which is easy to replace and has a high maintenance efficiency, thereby ensuring the normal operation of the user.

[0024] The utility model also relates to a harvester, comprising the main clutch tensioning structure as described above.

[0025] The beneficial effect of adopting the above further scheme is that the utility model also provides a harvester with a simple structure, reasonable design, convenient disassembly and assembly of each component, convenient replacement, high maintenance efficiency, and guaranteed normal operation of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a front view of the main clutch arm assembly in the utility model;

[0027] Figure 2 It is a side view of the main clutch arm assembly of the utility model;

[0028] Figure 3 This is one of the structural schematic diagrams of the transfer arm in the utility model;

[0029] Figure 4 for Figure 3 Sectional view along AA direction;

[0030] Figure 5 This is the second structural schematic diagram of the transfer arm in the utility model;

[0031] Figure 6 for Figure 5 Cross-sectional view along the BB direction;

[0032] Figure 7 It is a structural schematic diagram of the main clutch tensioning structure in the utility model.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. Swivel arm; 2. Rotating sleeve; 3. Tensioning screw; 4. Tensioning spring; 5. Mounting side plate; 6. Sliding bearing 1; 7. Elastic pin; 8. Separation spring; 9. Rotating shaft; 10. Mounting frame; 11. Tensioning wheel; 12. Fixing bolt; 13. Tightening bolt. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0039] Example 1

[0040] like Figures 1 to 7 As shown, this embodiment provides a main clutch pivot arm assembly, including a pivot arm 1, a rotating sleeve 2, a tensioning screw 3 and a driving member, wherein the pivot arm 1 is rotatably arranged; the rotating sleeve 2 is rotatably installed at one end of the pivot arm 1, and the tensioning screw 3 passes through the rotating sleeve 2; the driving member is connected to one end of the tensioning screw 3, and is used to drive the tensioning screw 3 to drive the pivot arm 1 to rotate; a tensioning spring 4 is sleeved on the tensioning screw 3, and the two ends of the tensioning spring 4 are respectively abutted against the rotating sleeve 2 and one end of the tensioning screw 3.

[0041] Preferably, in this embodiment, the rotating arm 1 is preferably a long strip frame structure, with a reasonable shape design and convenient assembly.

[0042] In addition, the rotating sleeve 2 is preferably a cylindrical structure.

[0043] Preferably, in this embodiment, the inner hole of the rotating sleeve (i.e., the screw through hole) is a stepped hole, wherein the hole with a smaller diameter is used to install a sliding bearing, and the hole with a larger diameter is used to reserve space to avoid abnormal wear between the rotating sleeve and the tensioning screw, while also reserving adjustment space for the tensioning screw.

[0044] This embodiment has a simple structure, a reasonable design, and convenient disassembly and assembly of each component, which is convenient for replacement and has a high maintenance efficiency, thereby ensuring normal operation of the user.

[0045] Example 2

[0046] On the basis of Example 1, in this embodiment, a notch is provided at one end of the rotating arm 1, and a notch is provided on one side of the notch; a mounting side plate 5 is installed on one side of the rotating arm 1, and one end of the mounting side plate 5 is flush with the other side of the notch; the rotating sleeve 2 is rotatably installed between the notch and the mounting side plate 5.

[0047] This solution has a simple structure and a reasonable design, and ensures the coaxiality between the rotating sleeve 2 and the other side of the recess and the mounting hole on the mounting side plate 5 .

[0048] Preferably, in this embodiment, the mounting side plate 5 is preferably a long strip plate structure, which is parallel to one side of the rotating arm 1 .

[0049] Example 3

[0050] On the basis of Example 2, in this embodiment, both sides of the rotating sleeve 2 are rotatably connected to the other side of the rotating arm 1 and the mounting side plate 5 through a sliding bearing 6 respectively.

[0051] The scheme has a simple structure and a reasonable design. By arranging a sliding bearing 6, the rotating sleeve 2 can be prevented from being stuck during rotation, which would cause abnormal stress on the tensioning screw 3 and the rotating sleeve 2, thereby ensuring smooth rotation.

[0052] Example 4

[0053] On the basis of any one of Embodiments 2 to 3, in this embodiment, the other end of the mounting side plate 5 is rotationally connected to one side of the rotating arm 1 via a rotating member, and is positioned via an elastic pin 7 .

[0054] The side plate 5 is installed to be easy to disassemble and install, so it is convenient to replace the sliding bearing 1.

[0055] Preferably, in this embodiment, the above-mentioned rotating part is a fixing bolt 12. When rotating the mounting side panel 5, it is necessary to first loosen the fixing bolt 12, and then manually rotate the mounting side panel 5. When the rotating sleeve 2 is installed and the mounting side panel 5 is rotated to the initial position, the fixing bolt 12 can be tightened to fix the mounting side panel 5.

[0056] In addition, when the mounting side plate 5 is rotated to the initial position, the mounting side plate 5 can be further fixed by tightening the bolts 13 to ensure the stability of the assembly of the mounting side plate 5 .

[0057] Example 5

[0058] On the basis of Example 4, in this embodiment, positioning holes are respectively provided on one side of the mounting side plate 5 and the rotating arm 1. When the mounting side plate 5 is rotated until the two positioning holes are opposite to each other, the elastic pin 7 is inserted into the pair of positioning holes to fix the mounting side plate 5.

[0059] The installation side plate 5 is easy to disassemble and assemble, and the sliding bearing 6 is convenient to replace, which is easy to operate and saves time and effort.

[0060] Preferably, in this embodiment, the elastic pin 7 is preferably a stepped cylindrical structure, and the shaft diameter of the two ends thereof matching with the rotating arm 1 is smaller than that of the middle part, so as to reduce the rotation resistance.

[0061] Example 6

[0062] On the basis of the above embodiments, in this embodiment, the tensioning screw 3 is slidably connected to the rotating sleeve 2 via a second sliding bearing.

[0063] The solution has a simple structure and a reasonable design. The provision of the second sliding bearing can improve the smoothness of the axial sliding of the tensioning screw 3 during the movement of the rotating arm 1.

[0064] Preferably, in this embodiment, the materials of the sliding bearing 1 6 and the sliding bearing 2 can be engineering plastics, bimetal, powder metallurgy or alloy steel.

[0065] Example 7

[0066] On the basis of the above embodiments, in this embodiment, a limiting member is installed on the other end of the tensioning screw 3, and a separation spring 8 is also provided on the sliding sleeve of the tensioning screw 3, and the two ends of the separation spring 8 are respectively abutted against the rotating sleeve 2 and the limiting member.

[0067] This solution has a simple structure and a reasonable design, and utilizes the separation spring 8 in conjunction with the tensioning spring 4 to achieve a better tensioning effect.

[0068] Based on the above scheme, both ends of the tensioning screw 3 are respectively threadedly connected with limit nuts, that is, the above-mentioned limit member is a limit nut, and the ends of the tensioning spring 4 and the separation spring 8 that are away from each other are respectively in contact with the two limit nuts.

[0069] Example 8

[0070] On the basis of the above embodiments, in this embodiment, the driving member is a hydraulic cylinder, the hydraulic cylinder is rotatably arranged, and its telescopic end is fixedly connected to one end of the tensioning screw 3, for example, by a threaded connection.

[0071] This solution has a simple structure and a reasonable design. It uses a hydraulic cylinder to provide an external force to move the tensioning screw 3 and drive the rotating arm 1 to rotate, so as to adjust the position of the tensioning wheel.

[0072] Based on the above solution, the hydraulic cylinder is directly mounted on the frame.

[0073] Example 9

[0074] On the basis of the above embodiments, the present embodiment further provides a main clutch tensioning structure, including a rotating shaft 9, a mounting frame 10, a tensioning wheel 11 and the main clutch pivot arm assembly as described above, wherein the rotating shaft 9 can rotate around its own axial direction, and the other end of the pivot arm 1 is fixedly connected to one end of the rotating shaft 9; the mounting frame 10 is fixedly installed on the other end of the rotating shaft 9, and the tensioning wheel 11 is rotatably installed on the mounting frame 10.

[0075] This embodiment also provides a main clutch tensioning structure, which has a simple structure, reasonable design, convenient assembly and disassembly of each component, easy replacement, high maintenance efficiency, and ensures normal operation of the user.

[0076] Example 10

[0077] Based on Example 9, this example also provides a harvester, including the main clutch tensioning structure as described above.

[0078] This embodiment also provides a harvester with a simple structure, reasonable design, easy disassembly and assembly of each component, convenient replacement, high maintenance efficiency, and guaranteed normal operation of the user.

[0079] The working principle of the utility model is as follows:

[0080] When the position of the tensioning wheel 11 needs to be adjusted, the hydraulic cylinder retracts and drives the rotating sleeve 2 to rotate through the tensioning screw 3, and drives the rotating arm 1 to rotate. The rotating arm 1 drives the rotating shaft 9 to rotate, and the rotating shaft 9 drives the mounting frame 10 and the tensioning wheel 11 to rotate, so that the tensioning wheel 11 is close to or away from the corresponding wheel, thereby realizing the adjustment of the position of the tensioning wheel 11.

[0081] The main clutch swing arm structure provided by the utility model is set as a split assembly structure, which is convenient for disassembly, assembly and replacement of the sliding bearing. At the same time, in order to ensure the coaxiality of the rotating sleeve mounting hole on the swing arm side plate, an elastic pin is provided between the mounting side plate and the swing arm, which is convenient for users to assemble after disassembly, and avoids the rotation sleeve installation deviation caused by the non-coaxial mounting holes of the two side plates, thereby causing excessive wear of the sliding bearing and abnormal wear between the rotating sleeve and the tensioning screw.

[0082] It should be noted that all electronic components involved in the present invention adopt the existing technology, and the above-mentioned components are electrically connected to the controller, and the control circuit between the controller and each component is the existing technology.

[0083] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0084] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A main clutch arm assembly, characterized in that: The invention comprises a rotating arm (1), a rotating sleeve (2), a tensioning screw (3) and a driving member, wherein the rotating arm (1) is rotatably arranged; the rotating sleeve (2) is rotatably mounted on one end of the rotating arm (1), and the tensioning screw (3) passes through the rotating sleeve (2); the driving member is connected to one end of the tensioning screw (3) and is used to drive the tensioning screw (3) to drive the rotating arm (1) to rotate; a tensioning spring (4) is sleeved on the tensioning screw (3), and the two ends of the tensioning spring (4) are respectively in contact with the rotating sleeve (2) and one end of the tensioning screw (3).

2. The main clutch arm assembly according to claim 1, characterized in that: A notch is provided at one end of the rotating arm (1), and a notch is provided at one side of the notch; a mounting side plate (5) is installed at one side of the rotating arm (1), and one end of the mounting side plate (5) is flush with the other side of the notch; the rotating sleeve (2) is rotatably installed between the notch and the mounting side plate (5).

3. The main clutch arm assembly according to claim 2, characterized in that: The two sides of the rotating sleeve (2) are rotatably connected to the other side of the rotating arm (1) and the mounting side plate (5) via a sliding bearing (6).

4. The main clutch arm assembly according to claim 2, characterized in that: The other end of the mounting side plate (5) is rotatably connected to one side of the rotating arm (1) via a rotating member, and is positioned via an elastic pin (7).

5. The main clutch arm assembly according to claim 4, characterized in that: Positioning holes are respectively provided on one side of the mounting side plate (5) and the rotating arm (1); when the mounting side plate (5) is rotated until the two positioning holes are opposite to each other, the elastic pin (7) is inserted into the pair of positioning holes to fix the mounting side plate (5).

6. The main clutch arm assembly according to any one of claims 1 to 5, characterized in that: The tensioning screw (3) is slidably connected to the rotating sleeve (2) via a second sliding bearing.

7. The main clutch arm assembly according to any one of claims 1 to 5, characterized in that: A limiting member is installed on the other end of the tensioning screw (3), and a separation spring (8) is also slidably sleeved on the tensioning screw (3), with the two ends of the separation spring (8) respectively abutting against the rotating sleeve (2) and the limiting member.

8. The main clutch arm assembly according to any one of claims 1 to 5, characterized in that: The driving member is a hydraulic cylinder, which is rotatably arranged and has a telescopic end fixedly connected to one end of the tensioning screw (3).

9. A main clutch tensioning structure, characterized in that: It comprises a rotating shaft (9), a mounting frame (10), a tensioning wheel (11) and a main clutch rotating arm assembly as described in any one of claims 1 to 8, wherein the rotating shaft (9) can rotate around its own axial direction, and the other end of the rotating arm (1) is fixedly connected to one end of the rotating shaft (9); the mounting frame (10) is fixedly mounted on the other end of the rotating shaft (9), and the tensioning wheel (11) is rotatably mounted on the mounting frame (10).

10. A harvester, characterized in that: It comprises the main clutch tensioning structure as claimed in claim 9.

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