Single-output normally-separated hydraulic clutch and novel corn harvester

Abstract

The utility model relates to a single-output normally-separated hydraulic clutch and a novel corn harvester, one end of a piston cover in the hydraulic clutch is fixedly sleeved on an output shaft, and a plurality of friction plates are respectively and coaxially sleeved on the output shaft and can respectively slide along the axial direction of the output shaft; the multiple partition plates are coaxially arranged on the output shaft in a sleeving mode, the partition plates and the multiple friction plates are sequentially and alternately distributed at intervals, and the partition plates can rotate in the axial direction of the output shaft. The input shaft is coaxially distributed at one end of the output shaft, and the multiple partition plates are connected with the input shaft and can slide in the axial direction of the input shaft. The piston is arranged on the output shaft in a sleeving mode and can slide in the axial direction of the output shaft and be positioned. One end of the piston penetrates through the opening in the other end of the piston cover and extends into the piston cover, and the other end of the piston abuts against the corresponding partition plate. The redundant transmission case is compact in structure and reasonable in layout, the redundant transmission case is light in weight, high in strength, low in failure rate and the like, the production cost and the maintenance cost are greatly reduced, and the competitiveness of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of novel corn harvesters, in particular to a single-output constant-split hydraulic clutch and a novel corn harvester. Background Art

[0002] The hydraulic clutch refers to one of the newly added important working parts of the corn harvester. Its main function is to provide power for the corn harvester's conveying and peeling systems to achieve the separation of the corn harvesting and returning and peeling power. It can meet the user's power needs of only harvesting and not returning and peeling.

[0003] The mainstream power output assembly on the market currently directly connects to the pulley after the engine outputs power. While harvesting corn, it is necessary to return the corn to the field and peel the corn. It has disadvantages such as a sturdy and bulky appearance, large overall weight, low strength, and a high failure rate. Utility Model Content

[0004] The utility model provides a single-output constant-split hydraulic clutch and a novel corn harvester, aiming to solve the problems in the prior art.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A single-output normally divided hydraulic clutch comprises an input shaft, an output shaft, a piston, a piston cover, a plurality of friction plates and a plurality of partitions, wherein the piston cover is closed at one end and open at the other end, and the closed end is fixedly sleeved on the output shaft; the plurality of friction plates are respectively sleeved coaxially on the output shaft, and can slide along the axial direction of the output shaft, and are located at the other end of the piston cover; the plurality of partitions are respectively sleeved coaxially on the output shaft, and are alternately spaced with the plurality of friction plates in sequence, and can rotate around the axial direction of the output shaft; the input shaft is coaxially distributed at one end of the output shaft, and the plurality of partitions are connected to the input shaft through a connecting piece, and can slide along the axial direction of the input shaft;

[0007] The piston sleeve is arranged on the output shaft, and can slide and position along the axial direction of the output shaft; one end of the piston extends into the piston cover through the opening of the other end of the piston cover, and the other end abuts against the corresponding partition plate, and the outer side of the piston fits against the inner wall of the piston cover.

[0008] The beneficial effects of the utility model are as follows: during use, the piston moves and pushes multiple partitions to squeeze multiple friction plates. When the friction between the partitions and the friction plates is greater than the transmitted power, the input shaft drives the partitions and the friction plates to rotate through the connecting piece, thereby transmitting the power to the output shaft, and the output shaft transmits the power to the belt of the whole machine;

[0009] When no power is transmitted, the friction between the partition and the friction plate is less than the transmitted power. At this time, the input shaft is led by the connecting parts to the multiple partitions to rotate idly around the output shaft.

[0010] The utility model has a compact structure and a reasonable layout, and realizes the light weight, high strength, low failure rate and the like of the redundant transmission box, which greatly reduces the production cost and maintenance cost and improves the competitiveness of the product.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] Furthermore, the connecting member is a process claw plate with one end being thin and the other end being thick, one end of the process claw plate is fixedly sleeved on one end of the input shaft, and the other end thereof is fixedly connected with a plurality of claws at circumferentially uniform intervals; the plurality of claws respectively extend along the axial direction of the input shaft, and respectively penetrate through a plurality of pairs of through holes on a plurality of the partitions.

[0013] The beneficial effects of adopting the above further scheme are simple structure and reasonable design. By utilizing the special structure of the process claw plate and multiple partitions, the multiple partitions can slide along the axial direction of the output shaft and rotate around the axial direction of the output shaft to ensure power transmission.

[0014] Furthermore, it also includes a main box housing, the output shaft is installed in the main box housing; the input shaft is installed in the main box housing, and its other end extends outside the main box housing, and one end of the process claw plate is rotatably connected to the main box housing through a ball bearing.

[0015] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and utilizing the main box shell to assemble and support various components.

[0016] Furthermore, one end of the output shaft is rotationally connected to the process claw plate through ball bearing 2, and the middle part and the other end are rotationally connected to the main box housing through cylindrical roller bearings.

[0017] The beneficial effect of adopting the above further solution is that the output shaft is supported by three bearings, namely, two ball bearings and two cylindrical roller bearings, which solves the problem of large transmitted torque and large radial tension of the pulley and reduces the failure rate.

[0018] Furthermore, an oil drain hole is provided at the bottom of the main box shell, and an oil drain plug is installed at the oil drain hole; a refueling hole is also provided on the main box shell, and a refueling plug is installed at the refueling hole; a vent hole is installed at the top of the main box shell, and a vent plug is installed at the vent hole.

[0019] The beneficial effects of adopting the above further scheme are simple structure, reasonable design, convenient addition of oil by using the filling hole, and convenient discharge of oil in the box by using the oil drain hole; in addition, ventilation is convenient by using the ventilation hole.

[0020] Furthermore, the other end of the output shaft is coaxially fixedly connected with a flywheel for connecting to the engine.

[0021] The beneficial effect of adopting the above further scheme is that during use, the piston moves and pushes multiple partitions to squeeze multiple friction plates. When the friction force between the partitions and the friction plates is greater than the transmitted power, the input shaft drives the partitions and friction plates to rotate through the connecting parts, thereby transmitting the power to the output shaft, and the output shaft uses the flywheel to transmit the power to the whole machine belt.

[0022] Furthermore, the other end of the output shaft is provided with an oil passage communicating with the area between the piston cover and one end of the piston, and the flywheel is provided with an inlet penetrating therethrough communicating with the oil passage.

[0023] The beneficial effect of adopting the above further solution is that when in use, the driving oil pipe is connected to the inlet, the hydraulic oil enters the area between one end of the piston and the piston cover through the inlet and the oil channel, and the hydraulic oil is used to drive the piston to reciprocate.

[0024] Furthermore, an O-ring is installed between the inner side of one end of the piston and the output shaft and / or between the outer side of one end of the piston and the inner wall of the piston cover.

[0025] The beneficial effects of adopting the above further solution are simple structure, reasonable design, no hydraulic oil leakage under the sealing of the O-ring, and ensuring the normal operation of the hydraulic clutch.

[0026] Furthermore, a butterfly spring is installed between each friction plate and the corresponding partition plate.

[0027] The beneficial effects of adopting the above further solution are simple structure and reasonable design. The butterfly spring ensures that there is a reserved gap between the partitions and does not contact the friction plate, ensuring that there is no contact during idling. It can also deform under the pressure of hydraulic oil to ensure that the friction plate and the partition are combined, generating sufficient friction to transmit power. The heat and wear problems caused by friction when the hydraulic pressure is disconnected are solved, and the failure rate is reduced.

[0028] The utility model also relates to a novel corn harvester, comprising the single-output normally split hydraulic clutch as described above.

[0029] The beneficial effect of adopting the above-mentioned further scheme is that the utility model also provides a new type of corn harvester, which has a compact structure and a reasonable layout, and realizes a light weight, high strength, and low failure rate of the redundant transmission box, which greatly reduces the production cost and maintenance cost and improves the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0031] Figure 2 It is a cross-sectional view of the utility model;

[0032] Figure 3 It is the front view of the utility model;

[0033] Figure 4 It is a top view of the utility model.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1. Main box housing; 2. Locating pin; 3. Breather plug; 4. Suspension; 5. Cylindrical roller bearing; 6. Flywheel; 7. Ball bearing one; 8. Oil seal; 9. Input shaft; 10. Connecting bolts; 11. Retaining ring; 12. Piston cover; 13. Friction plate; 14. Partition; 15. Butterfly spring; 16. Oil drain plug; 17. O-ring; 18. Piston; 19. Oil filling plug; 20. Output shaft; 21. Input shaft cover; 22. End cover; 23. Oil channel; 24. Process claw plate; 25. Ball bearing two. DETAILED DESCRIPTION

[0036] 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.

[0037] 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.

[0038] 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.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0040] Example 1

[0041] like Figures 1 to 4 As shown, this embodiment provides a single-output normally divided hydraulic clutch, comprising an input shaft 9, an output shaft 20, a piston 18, a piston cover 12, a plurality of friction plates 13 and a plurality of partitions 14, wherein the piston cover 12 is closed at one end and open at the other end, and the closed end is fixedly sleeved on the output shaft 20; the plurality of friction plates 13 are respectively coaxially sleeved on the output shaft 20, and can slide along the axial direction of the output shaft 20 respectively, and are located at the other end of the piston cover 12; the plurality of partitions 14 are respectively coaxially sleeved on the output shaft 20, and are alternately spaced with the plurality of friction plates 13 in sequence, and can rotate around the axial direction of the output shaft 20 respectively; the input shaft 9 is coaxially distributed at one end of the output shaft 20, and the plurality of partitions 14 are connected to the input shaft 9 through a connecting member, and can slide along the axial direction of the input shaft 9;

[0042] The piston 18 is sleeved on the output shaft 20 and can slide and position along the axial direction of the output shaft 20; one end of the piston 18 passes through the open end of the piston cover 12 and extends into the piston cover 12, and the other end abuts against the corresponding partition 14, and the outer side of the piston 18 fits against the inner wall of the piston cover 12.

[0043] During use, the piston 18 moves and pushes the multiple partitions 14 to squeeze the multiple friction plates 13. When the friction between the partitions 14 and the friction plates 13 is greater than the transmitted power, the input shaft 9 drives the partitions 14 and the friction plates 13 to rotate through the connecting piece, thereby transmitting the power to the output shaft 20, and the output shaft 20 transmits the power to the whole machine belt;

[0044] When no power is transmitted, the friction force between the partition 14 and the friction plate 13 is less than the transmitted power. At this time, the input shaft 9 is led by the connecting piece to the multiple partitions 14 to rotate idly around the output shaft 20 without transmitting power.

[0045] Preferably, in this embodiment, the piston cover 12 is fixedly mounted on the output shaft 20 via splines.

[0046] The piston 18 and the output shaft 20 are spline-connected, which improves the connection strength and reduces the failure rate; the piston cover 12 and the piston 18 are both on the output shaft 20, ensuring that the two parts move together, reducing hydraulic oil leakage and ensuring the normal operation of the hydraulic clutch.

[0047] This embodiment has a compact structure and a reasonable layout, and realizes a light weight, high strength, and low failure rate of the redundant transmission box, which greatly reduces the production cost and maintenance cost and improves the competitiveness of the product.

[0048] Example 2

[0049] On the basis of Example 1, in this embodiment, the connecting member is a process claw plate 24 which is thin at one end and thick at the other end. One end of the process claw plate 24 is fixedly sleeved on one end of the input shaft 9, and the other end thereof is fixedly connected with a plurality of claws at circumferentially uniform intervals; the plurality of claws respectively extend along the axial direction of the input shaft 9, and respectively penetrate through a plurality of pairs of through holes on a plurality of partitions 14.

[0050] This solution has a simple structure and a reasonable design. It utilizes the special structure of the process claw plate 24 and multiple partitions 14 so that the multiple partitions 14 can slide along the axial direction of the output shaft and can also rotate around the axial direction of the output shaft 20 to ensure power transmission.

[0051] Example 3

[0052] Based on Example 2, this embodiment also includes a main box housing 1, and the output shaft 20 is installed in the main box housing 1; the input shaft 9 is installed in the main box housing 1, and the other end of the input shaft 9 extends to the outside of the main box housing 1, and one end of the process claw plate 24 is rotatably connected to the main box housing 1 through a ball bearing 7.

[0053] This solution has a simple structure and a reasonable design, and utilizes the main box housing 1 to assemble and support various components.

[0054] Preferably, in this embodiment, the main box housing 1 is preferably a cylindrical structure with one end being thicker and the other end being thinner, and the thick end thereof is trumpet-shaped; the input shaft 9 is located at the thick end of the main box housing 1 .

[0055] Preferably, in this embodiment, the thick end of the main box housing 1 is open, and an input shaft cover 21 is fixedly installed by a locating pin 2 and a connecting bolt 10. The connection between the input shaft 9, the input shaft cover 21 and the main box housing 1 is positioned by a locating pin 2 and a double bearing, which improves the connection strength and reduces the failure rate.

[0056] In addition, the input shaft 9 passes through the input shaft cover 21, and one end of the process claw plate 24 is rotatably connected to the input shaft cover 21 through a ball bearing 7.

[0057] Preferably, in this embodiment, the thin end of the main box housing 1 is open, and an end cover 22 is fixedly installed by connecting bolts 10 , and the output shaft 20 passes through the end cover 22 .

[0058] This embodiment is provided with a main box housing 1, which is directly connected to the engine housing, and the rear end supports the output shaft bearing, thereby increasing the strength of the overall housing and facilitating assembly, use and maintenance.

[0059] Preferably, in this embodiment, a hanger 4 is fixedly installed on the top of the main box housing 1.

[0060] Example 4

[0061] On the basis of Example 3, in this embodiment, one end of the output shaft 20 is rotationally connected to the process claw plate 24 through a ball bearing 25, and the middle part and the other end are rotationally connected to the main box housing 1 through a cylindrical roller bearing 5.

[0062] The output shaft 20 is supported by three bearings, namely, a ball bearing 25 and two cylindrical roller bearings 5, which solves the problem of large transmitted torque and large radial tension of the pulley and reduces the failure rate.

[0063] Preferably, in this embodiment, oil seals 8 are installed between the input shaft 9 and the input shaft cover 21 and between the output shaft 20 and the end cover 22 .

[0064] The main box housing 1 adopts an integrated structure, with the front end connected to the engine flywheel housing, the middle supporting the bearings of the input shaft 9 and the output shaft 20, and sealed by oil seals 8 at the front and back to form a closed housing space to prevent internal lubricating oil leakage and external impurities from entering.

[0065] Preferably, in this embodiment, a retaining ring 11 is fixedly sleeved on one end of the output shaft 20 close to the second ball bearing 25 .

[0066] Example 5

[0067] On the basis of any one of Examples 3 to 4, in this embodiment, an oil drain hole is provided at the bottom of the main box housing 1, and an oil drain plug 16 is installed at the oil drain hole; a refueling hole is also provided on the main box housing 1, and a refueling plug 19 is installed at the refueling hole; a vent hole is installed at the top of the main box housing 1, and a vent plug 3 is installed at the vent hole.

[0068] The scheme has a simple structure and a reasonable design. The filling hole is used to add oil, and the oil drain hole is used to discharge the oil in the box. In addition, the ventilation hole is used to facilitate ventilation.

[0069] Based on the above solution, after the above refueling hole is refueled, it will no longer be used for refueling or draining oil.

[0070] Example 6

[0071] On the basis of the above embodiments, in this embodiment, the other end of the output shaft 20 is coaxially fixedly connected with a flywheel 6 for connecting to the engine.

[0072] During use, the piston 18 moves and pushes multiple partitions 14 to squeeze multiple friction plates 13. When the friction force between the partitions 14 and the friction plates 13 is greater than the transmitted power, the input shaft 9 drives the partitions 14 and the friction plates 13 to rotate through the connecting parts, thereby transmitting the power to the output shaft 20, and the output shaft 20 uses the flywheel 6 to transmit the power to the whole machine belt.

[0073] Example 7

[0074] On the basis of Example 6, in this embodiment, the other end of the output shaft 20 is provided with an oil passage 23 connected to the area between the piston cover 12 and one end of the piston 18, and the flywheel 6 is provided with an inlet penetrating therethrough and connected to the oil passage 23.

[0075] When in use, the driving oil pipe is connected to the inlet, and the hydraulic oil enters the area between one end of the piston 18 and the piston cover 12 through the inlet and the oil channel 23, and the piston 18 is driven to reciprocate by the hydraulic oil.

[0076] The rear end of the above-mentioned output shaft 20 is provided with a threaded hole, which is connected to the hydraulic oil pipe of the whole machine. Hydraulic oil is input to push the piston 18 to move in the piston cover 12, and the piston 18 pushes the partition 14 and the friction plate 13 to contact. When the force generated by the friction force is greater than the transmitted power, the input shaft 9 drives the partition 14 and the friction plate 13 through the process claw plate 24 (that is, the twelve claw groove plate in the prior art). The twelve claws on the outer circle of the friction plate 13 receive the power of the input shaft 9, and transmit the power to the spline of the output shaft 20 through the internal spline, and transmit the power to the belt of the whole machine through the rear end flywheel 6.

[0077] The piston 18 and the piston cover 12 are on the output shaft 20 and have no relative rotational movement but only axial movement, which reduces the risk of oil leakage and the failure rate.

[0078] Example 8

[0079] On the basis of Example 7, in this embodiment, an O-ring 17 is installed between the inner side of one end of the piston 18 and the output shaft 20 and / or between the outer side of one end of the piston 18 and the inner wall of the piston cover 12.

[0080] This solution has a simple structure and a reasonable design. Under the sealing of the O-ring 17, there is no leakage of hydraulic oil, thus ensuring the normal operation of the hydraulic clutch.

[0081] Example 9

[0082] On the basis of the above embodiments, in this embodiment, a butterfly spring 15 is installed between each friction plate 13 and the corresponding partition plate 14 .

[0083] This solution has a simple structure and a reasonable design. The butterfly spring 15 ensures that there is a reserved gap between the partitions 14 and that they do not contact the friction plates 13, ensuring that there is no contact during idling. The butterfly spring 15 can also deform under the pressure of the hydraulic oil to ensure that the friction plates 13 and the partitions 14 are combined, generating sufficient friction to transmit power, solving the problems of heat and wear generated by friction when the hydraulic pressure is disconnected, and reducing the failure rate.

[0084] This solution adds a butterfly spring 15 to ensure that there is a gap in the partition plate 14, so that the friction plate 13 rotates idly without power output and friction to generate wear and heat.

[0085] Example 10

[0086] On the basis of the above embodiments, this embodiment also provides a novel corn harvester, including the single-output normally split hydraulic clutch as described above.

[0087] This embodiment also provides a new type of corn harvester, which has a compact structure and a reasonable layout, and realizes a light weight, high strength, and low failure rate of the redundant transmission box, which greatly reduces the production cost and maintenance cost and improves the competitiveness of the product.

[0088] The working principle of the utility model is as follows:

[0089] During use, when the hydraulic oil is fed into the area between the piston 18 and the piston cover 12, the piston 18 is pushed to move, and the piston 18 moves and pushes the multiple partitions 14 to squeeze the multiple friction plates 13. When the friction between the partitions 14 and the friction plates 13 is greater than the transmitted power, the input shaft 9 drives the partitions 14 and the friction plates 13 to rotate through the process claw plate 24, thereby transmitting the power to the output shaft 20, and the output shaft 20 transmits the power to the belt of the whole machine;

[0090] When no power is transmitted, the friction force between the partition 14 and the friction plate 13 is less than the transmitted power. At this time, the input shaft 9 is led by the connecting piece to the multiple partitions 14 to rotate idly around the output shaft 20 without transmitting power.

[0091] The hydraulic separator provided by the utility model realizes a light weight, high strength and low failure rate of the redundant transmission box by designing a new layout and structure, which greatly reduces the production cost and maintenance cost and improves the competitiveness of the product.

[0092] 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.

[0093] 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.

[0094] 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 single-output normally split hydraulic clutch, characterized in that: The invention comprises an input shaft (9), an output shaft (20), a piston (18), a piston cover (12), a plurality of friction plates (13) and a plurality of partition plates (14), wherein the piston cover (12) is closed at one end and open at the other end, and the closed end is fixedly sleeved on the output shaft (20); the plurality of friction plates (13) are respectively sleeved coaxially on the output shaft (20), and can slide along the axial direction of the output shaft (20) and are located at the other end of the piston cover (12); the plurality of partition plates (14) are respectively sleeved coaxially on the output shaft (20), and are alternately spaced with the plurality of friction plates (13) in sequence, and can rotate around the axial direction of the output shaft (20); the input shaft (9) is coaxially distributed at one end of the output shaft (20), and the plurality of partition plates (14) are connected to the input shaft (9) through a connecting piece, and can slide along the axial direction of the input shaft (9); The piston (18) is sleeved on the output shaft (20) and can slide and be positioned along the axial direction of the output shaft (20); one end of the piston (18) passes through the open end of the other end of the piston cover (12) and extends into the piston cover (12), and the other end abuts against the corresponding partition (14), and the outer side of the piston (18) is in contact with the inner wall of the piston cover (12).

2. The single-output normally split hydraulic clutch according to claim 1, characterized in that: The connecting piece is a process claw plate (24) with a thin end and a thick end. One end of the process claw plate (24) is fixedly sleeved on one end of the input shaft (9), and the other end thereof is fixedly connected with a plurality of claws at evenly spaced intervals in the circumferential direction. The plurality of claws extend along the axial direction of the input shaft (9) and penetrate through a plurality of pairs of through holes on a plurality of partition plates (14).

3. The single-output normally split hydraulic clutch according to claim 2, characterized in that: It also includes a main box housing (1), the output shaft (20) is installed in the main box housing (1); the input shaft (9) is installed in the main box housing (1), and the other end of the input shaft (9) extends outside the main box housing (1); one end of the process claw plate (24) is rotatably connected to the main box housing (1) via a ball bearing (7).

4. The single-output normally split hydraulic clutch according to claim 3, characterized in that: One end of the output shaft (20) is rotatably connected to the process claw plate (24) via a second ball bearing (25), and the middle part and the other end are rotatably connected to the main box housing (1) via a cylindrical roller bearing (5).

5. The single-output normally split hydraulic clutch according to claim 3, characterized in that: The main box housing (1) is provided with an oil drain hole at the bottom, and an oil drain plug (16) is installed at the oil drain hole; the main box housing (1) is also provided with a refueling hole, and a refueling plug (19) is installed at the refueling hole; the main box housing (1) is provided with a vent hole at the top, and a vent plug (3) is installed at the vent hole.

6. The single-output normally split hydraulic clutch according to any one of claims 1 to 5, characterized in that: The other end of the output shaft (20) is coaxially fixedly connected with a flywheel (6) for connecting to an engine.

7. The single-output normally split hydraulic clutch according to claim 6, characterized in that: The other end of the output shaft (20) is provided with an oil passage (23) communicating with the area between the piston cover (12) and one end of the piston (18), and the flywheel (6) is provided with an inlet penetrating therethrough and communicating with the oil passage (23).

8. The single-output normally split hydraulic clutch according to claim 7, characterized in that: An O-ring (17) is installed between the inner side of one end of the piston (18) and the output shaft (20) and / or between the outer side of one end of the piston (18) and the inner wall of the piston cover (12).

9. The single-output normally split hydraulic clutch according to any one of claims 1 to 5, characterized in that: A butterfly spring (15) is installed between each friction plate (13) and the corresponding partition plate (14).

10. A novel corn harvester, characterized in that: It comprises a single-output normally split hydraulic clutch as described in any one of claims 1-9.

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