Power take-off system and transmission system adopting wet friction clutch mode

Abstract

The invention discloses a power take-off system and a transmission system adopting a wet friction clutch mode, the power take-off system comprises an input assembly, an output assembly, a clutch device and a control assembly, a transmission drives the input assembly to rotate synchronously, the control assembly controls oil to act on a pushing piece at different flows, and therefore the power take-off effect is achieved. The clutch device is switched in different states, so that the first assembly and the second assembly, connected with the input assembly and the output assembly respectively, of the clutch device are connected, power is transmitted to the output assembly from the input assembly, control convenience is improved, the applicability of power take-off operation in the dynamic working condition is improved, and the power take-off efficiency is improved. And the operation flow of oil liquid is adjusted through the control assembly, so that the pushing piece conducts driving operation at different times and different speeds, then in the normal power output process of the whole vehicle, power take-off operation is conducted more gently and stably, pause and impact force are reduced, the clutch device is further protected, and the service life of the clutch device is prolonged. And the operation applicability and reliability of the power takeoff are improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle chassis transmission technology, and in particular to a power take-off system and a transmission system using a wet friction clutch. Background Art

[0002] The information provided in this section is for the purpose of generally presenting the background of the present disclosure. To the extent described in this section, the work of the presently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly admitted to be prior art to the present disclosure.

[0003] In the vehicle chassis transmission system, the power take-off is a power output component that outputs the power of the vehicle chassis engine, transmission or transfer case to the outside world and supplies it to the oil pump, water pump, generator, etc. At present, most heavy-duty vehicles use multi-stage gear shaft transmission power take-offs, and cooperate with pneumatic shift fork shifting to achieve the connection and separation of the power take-off. This type of power take-off occupies a large space. When the gear is directly engaged, the power take-off process is frustrated and the vehicle needs to be stopped to engage the gear. The power take-off lubrication method is relatively passive, and the pneumatic shift fork shifting will fail after the internal seals age and the power gas leaks. In addition, there are also power take-offs with integrated dry friction plate clutches instead of shift fork structures to achieve the power output start-stop function of the power take-off. However, when this type of power take-off is frequently used, the clutch in the power take-off is constantly engaged, causing the clutch friction plate to generate a lot of heat, and the power take-off is prone to failure. Summary of the invention

[0004] In view of the defects existing in the prior art, the present application provides a power take-off system and a transmission system using a wet friction clutch to solve the problems of large limitations and poor reliability of the power take-off in the prior art.

[0005] The above-mentioned purpose of the present application is mainly achieved through the following technical solutions:

[0006] On the one hand, the present application provides a power take-off system using a wet friction clutch, the power take-off system comprising:

[0007] An input assembly, the input assembly is used to connect to the transmission and synchronously receive power transmitted by the transmission;

[0008] An output assembly, wherein the output assembly is rotatably arranged, and one end of the output assembly is used to connect to a force-bearing device;

[0009] A clutch device, the clutch device comprising a first component fixedly connected to the input component, and a second component fixedly connected to the output component, the second component being connected to a pusher, the pusher being capable of driving the second component to be separated from or connected to the first component, so as to block or transmit power between the input component and the output component;

[0010] A control component, one end of which is used to connect to an oil source. The control component is connected to the pusher and can control the oil to flow to one side of the pusher at different flow rates, thereby pushing the pusher and the second component to move toward the first component.

[0011] In an optional embodiment, the input component includes a first gear that is driven by the transmission gear, and an inner hub fixedly connected to the first gear, and the first component is movably arranged on the inner hub along the displacement direction of the pusher and can rotate synchronously with the inner hub.

[0012] In an optional embodiment, the output component includes a rotatably arranged transmission shaft, the transmission shaft is transmission-connected to an outer hub that rotates synchronously with the transmission shaft, and the second component is movably arranged on the outer hub along the displacement direction of the pushing member and can rotate synchronously with the outer hub.

[0013] In an optional embodiment, the inner hub is provided with a plurality of first splines extending in the displacement direction of the push member, and the first splines are arranged on the inner hub at circumferential intervals, the first component is provided with a slide groove cooperating with the first splines, the outer hub is provided with a plurality of first guide grooves extending in the displacement direction of the push member, and the second component is provided with mating ends extending into the first guide grooves respectively.

[0014] In an optional embodiment, a first connecting groove is provided on the transmission shaft, one end of the first connecting groove is connected to the control component, and the other end extends to the side of the pushing member away from the second component, and when the control component controls the oil to flow through the first connecting groove to the side of the pushing member, the pushing member can push the second component and the first component to be pressed against each other under the action of the oil.

[0015] In an optional embodiment, a second connecting groove is provided on the transmission shaft, one end of the second connecting groove is connected to the control component, and a plurality of guide holes are provided on the second connecting groove, the guide holes are arranged respectively corresponding to the input component, the output component and the clutch device, and when the control component controls the oil to flow out of the guide holes through the second connecting groove, the oil can lubricate and cool the input component, the output component and the clutch device, respectively.

[0016] In an optional embodiment, the power take-off system includes a first shell and a second shell that are detachably fixed, a working space is provided in the first shell and the second shell, and the input component, the output component and the clutch device are provided in the working space.

[0017] In an optional embodiment, the control component includes a control valve and an end cover, the end cover is fixedly connected to the first shell, the end cover is provided with a plurality of control channels connected to the oil source, the control valve is fixedly connected to the end cover, and controls the oil to enter the working space, or guides the oil to be discharged from the working space.

[0018] In an optional embodiment, the first component includes a plurality of first friction plates arranged at intervals, the second component includes a plurality of second friction plates arranged at intervals, and the first friction plates and the second friction plates are arranged at intervals in sequence, so that the pushing member drives the first friction plates and the second friction plates to clamp each other.

[0019] Based on the same inventive concept, the present application also provides a transmission system, which includes a power take-off system using a wet friction clutch as described above.

[0020] Compared with the prior art, the advantages of this application are:

[0021] The power take-off system using a wet friction clutch in the present application includes an input component, an output component, a clutch device and a control component. The input component is used to connect to the transmission and synchronously receive the power transmitted by the transmission. The output component can be rotatably arranged, and one end of the output component is used to connect to the force receiving device. The clutch device includes a first component fixedly connected to the input component, and a second component fixedly connected to the output component. A pushing member is connected to the second component, and the pushing member can drive the second component to connect with the first component to block or transmit power between the input component and the output component. One end of the control component is used to connect to an oil source. The control component is connected to the pushing member and can control the oil to flow to one side of the pushing member at different flow rates, thereby pushing the pushing member and the second component to the first component. One component is displaced. During actual operation, the transmission is used as a power source to transmit power to the input component and drive the input component to rotate synchronously. The control component controls the oil to act on the pushing member at different flow rates, and under the drive of the pushing member, the clutch device is switched between different states, so that the first component and the second component respectively connected to the input component and the output component are connected, thereby realizing power transmission from the input component to the output component, improving control convenience and the applicability of power take-off operation in dynamic working conditions, and adjusting the operating flow of the oil through the control component, so that the pushing member can perform driving operations at different speeds at different times, thereby performing power take-off operations more smoothly and stably during the normal power output process of the vehicle, reducing setbacks and impact force, further protecting the clutch device, and improving the applicability and reliability of the power take-off operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A cross-sectional view of a power take-off system is provided for an embodiment of the present application;

[0024] Figure 2 A side partial cross-sectional view of a power take-off system is provided for an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the first position structure of the transmission shaft is provided for an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the second position structure of the transmission shaft is provided for an embodiment of the present application;

[0027] Figure 5A schematic diagram of the structure of the inner hub is provided for an embodiment of the present application;

[0028] Figure 6 A schematic diagram of the structure of the outer hub is provided for an embodiment of the present application;

[0029] In the figure: 101, first gear; 102, inner hub; 103, first spline; 104, slide groove; 201, transmission shaft; 202, first connecting groove; 203, second connecting groove; 204, guide hole; 301, outer hub; 302, first guide groove; 400, first component; 401, first friction plate; 402, slide groove; 500, second component; 501, second friction plate; 502, mating end; 601, pusher; 602, spring; 700, control component; 701, control valve; 702, end cover; 703, control channel; 801, first shell; 802, second shell. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. The specific structures and functional details disclosed herein are only used to describe the exemplary embodiments of the present invention. However, the present invention can be embodied in many alternative forms, and it should not be understood that the present invention is limited to the embodiments set forth herein.

[0031] like Figure 1 As shown, Figure 1 A cross-sectional view of a power take-off system is provided for an embodiment of the present application;

[0032] On the one hand, the present application provides a power take-off system using a wet friction clutch, the power take-off system comprising an input component, an output component, a clutch device and a control component 700, wherein:

[0033] like Figure 1 As shown, the input component is used to connect to the transmission and synchronously receive the power transmitted by the transmission. The input component is connected to the transmission, the power output by the transmission is stably transmitted to the input component, and the connection between the transmission and the input component is in a continuous state.

[0034] like Figure 1 As shown, the output assembly is rotatably arranged, and one end of the output assembly is used to connect to the force-bearing device. The output assembly is used to output power to the force-bearing device. In order to facilitate the connection of the force-bearing device, a detachable connecting flange can be provided at the end of the output assembly to facilitate disassembly and assembly with the force-bearing device. The output assembly and the connecting flange achieve synchronous rotation through an axially extending connecting key, and the disassembly is fast and the synchronous state is stable.

[0035] The clutch device includes a first component 400 fixedly connected to an input component, and a second component 500 fixedly connected to an output component. A pushing member 601 is connected to the second component 500, and the pushing member 601 can drive the second component 500 to separate or connect with the first component 400 to block or transmit power between the input component and the output component. The first component 400 and the second component 500 can form different relative states through the driving of the pushing member 601. The first component 400 and the second component 500 are respectively connected to the input component and the output component, and the power blocking and transmission between the input component and the output component are realized through the relative separation and connection of the first component 400 and the second component 500, so that the power of the transmission is output to the force-receiving device to complete the power taking operation.

[0036] like Figure 1 , Figure 2 As shown, Figure 2 A side partial cross-sectional view of a power take-off system is provided for an embodiment of the present application. One end of the control component 700 is used to connect to an oil source. The control component 700 is connected to the pusher 601 and can control the oil to flow to one side of the pusher 601 at different flow rates, thereby pushing the pusher 601 and the second component 500 to move toward the first component 400. The oil source outputs oil. Under the control of the control component 700, the flow rate of the oil flowing to one side of the pusher 601 changes. Specifically, when starting to take off power, a larger oil flow rate can be used to obtain a driving force. Component 601 moves faster, thereby completing the initial movement of the second component 500, until the second component 500 is about to connect to the first component 400, that is, when the power at the input component is about to be transmitted to the output component, the control component 700 controls the oil flow to decrease. At this time, the oil slowly and short-distance drives the push component 601 to maintain a smooth process of taking power, avoid the output component from being jerked or impacted in power transmission, improve the stability of taking power, and reduce the difficulty of state switching of the clutch device, so as to switch the target action in a smoother and smoother working state.

[0037] It should be noted that a spring 602 is provided on one side of the pushing member 601. When the driving oil on one side of the pushing member 601 pushes the pushing member 601 to move, the pushing member 601 compresses the spring 602. After the oil on one side of the pushing member 601 flows back, the oil cancels the pushing effect on the pushing member 601, and the deformation recovery force of the spring 602 reverses the pushing member 601 to reset until the first component 400 and the second component 500 are separated.

[0038] In an optional embodiment, the working principle of the power take-off system using a wet friction clutch in the present application is: the power take-off system includes an input component, an output component, a clutch device and a control component 700, the input component is used to connect to the transmission and synchronously receive the power transmitted by the transmission, the output component can be rotatably arranged, and one end of the output component is used to connect to the force receiving device, the clutch device includes a first component 400 fixedly connected to the input component, and a second component 500 fixedly connected to the output component, a pushing member 601 is connected to the second component 500, and the pushing member 601 can drive the second component 500 to separate or connect with the first component 400 to block or transmit power between the input component and the output component, one end of the control component 700 is used to connect to an oil source, the control component 700 is connected to the pushing member 601, and can control the oil to flow to one side of the pushing member 601 at different flow rates, thereby pushing the The pushing member 601 and the second component 500 are displaced toward the first component 400. During actual operation, the transmission is used as a power source to transmit power to the input component and drive the input component to rotate synchronously. The control component 700 controls the oil to act on the pushing member 601 at different flow rates, and under the drive of the pushing member 601, the switching of different states of the clutch device is completed, so that the first component 400 and the second component 500 respectively connected to the input component and the output component are connected, thereby realizing the power transmission from the input component to the output component, improving the control convenience and the applicability of the power take-off operation in dynamic working conditions, and adjusting the operating flow of the oil through the control component 700, so that the driving operation is performed at different speeds at different times of the pushing member 601, so that in the normal power output process of the whole vehicle, the power take-off operation is performed more smoothly and stably, the frustration and impact force are reduced, the clutch device is further protected, and the applicability and reliability of the power take-off operation are improved.

[0039] like Figure 1 , Figure 3 , Figure 4 As shown, Figure 3 A schematic diagram of the first position structure of the transmission shaft 201 is provided for the embodiment of the present application. Figure 4 A schematic diagram of the second position structure of the transmission shaft 201 is provided for an embodiment of the present application; in an optional embodiment, the input component includes a first gear 101 that is driven by the transmission gear, and an inner hub 102 that is fixedly connected to the first gear 101, and the first component 400 is movably arranged on the inner hub 102 along the displacement direction of the pusher 601, and can rotate synchronously with the inner hub 102.

[0040] By setting the first gear 101 and the transmission for gear transmission, the power input stability is maintained, and the inner hub 102 can be coaxially fixedly connected to the first gear 101 by connecting bolts. The inner hub 102 provides an installation base and movable guide for the first component 400. That is to say, the first component 400 can rotate synchronously with the inner hub 102. In the displacement direction of the pushing member 601, the first component 400 can also move relatively on the inner hub 102. When the pushing member 601 is driven, the first component 400 undergoes a certain displacement on the inner hub 102 and forms a stable connection relationship with the second component 500 to maintain reliable power transmission.

[0041] like Figure 1 , Figure 3 , Figure 4 As shown, Figure 3 A schematic diagram of the first position structure of the transmission shaft 201 is provided for the embodiment of the present application. Figure 4 A schematic diagram of the second position structure of the transmission shaft 201 is provided for an embodiment of the present application; in an optional embodiment, the output component includes a rotatable transmission shaft 201, and the transmission shaft 201 is transmission-connected to an outer hub 301 that rotates synchronously with the transmission shaft 201, and the second component 500 is movably arranged on the outer hub 301 along the displacement direction of the pushing member 601, and can rotate synchronously with the outer hub 301.

[0042] The transmission shaft 201 can rotate relatively, and after the first component 400 is connected to the second component 500, the transmission shaft 201 can rotate synchronously with the first gear 101 in the input component, and the outer hub 301 can rotate synchronously with the transmission shaft 201 through a spline connection. The outer hub 301 provides an installation base and movable guide for the second component 500. That is to say, the second component 500 can rotate synchronously with the outer hub 301, and at the same time, the second component 500 can also move relatively on the outer hub 301 in the displacement direction of the pushing member 601. When the second component 500 is driven to cooperate with the pushing member 601, a certain displacement occurs on the outer hub 301, and a stable connection relationship is formed with the first component 400 to maintain reliable power transmission.

[0043] like Figure 1 , Figure 5 As shown, Figure 5A structural schematic diagram of the inner hub 102 is provided for an embodiment of the present application. In an optional embodiment, the inner hub 102 is provided with a plurality of first splines 103 extending in the displacement direction of the push member 601, and the first splines 103 are arranged on the inner hub 102 at circumferential intervals, the first component 400 is provided with a slide groove 104 cooperating with the first spline 103, the outer hub 301 is provided with a plurality of first guide grooves 302 extending in the displacement direction of the push member 601, and the second component 500 is provided with mating ends 502 respectively extending into the first guide grooves 302.

[0044] Specifically, a plurality of first splines 103 are arranged on the inner hub 102, and a mounting position of the first component 400 is formed between adjacent first splines 103. Correspondingly, a slide groove 104 that cooperates with the first splines 103 is also arranged on the first component 400. The axial constraint of the first splines 103 and the first component 400 enables the inner hub 102 and the first component 400 to rotate synchronously. The radial cooperation between the slide groove 104 and the first component 400 enables the first component 400 to move back and forth in the displacement direction of the push member 601.

[0045] like Figure 1 , Figure 6 As shown, Figure 6 A structural schematic diagram of the outer hub 301 is provided for an embodiment of the present application. A plurality of first guide grooves 302 are provided on the outer hub 301, and the second component 500 is also provided with mating ends 502 extending into the first guide grooves 302, that is, a portion of the second component 500 extends into the first guide grooves 302. The mating relationship between the second component 500 and the first guide grooves 302 enables the outer hub 301 and the second component 500 to rotate synchronously. That is, the outer hub 301 is pushed to rotate synchronously by the mating end 502, so that the second component 500 can move back and forth in the displacement direction of the pushing member 601 while also driving the outer hub 301 to rotate synchronously to complete power output.

[0046] like Figure 1 , Figure 3 , Figure 4 As shown, Figure 3 A schematic diagram of the first position structure of the transmission shaft 201 is provided for the embodiment of the present application. Figure 4A schematic diagram of the second position structure of the transmission shaft 201 is provided for the embodiment of the present application; in an optional embodiment, a first connecting groove 202 is provided on the transmission shaft 201, one end of the first connecting groove 202 is connected to the control component 700, and the other end extends to the side of the pushing member 601 away from the second component 500, and when the control component 700 controls the oil to flow to the side of the pushing member 601 via the first connecting groove 202, the oil can push the second component 500 to connect with the first component 400, and the oil flows to the target area side of the pushing member 601 via the first connecting groove 202, which is convenient for the output control of the oil. The first connecting groove 202 directly uses the transmission shaft 201 as the setting basis. On the one hand, it utilizes the stability of the rotation of the transmission shaft 201, and on the other hand, it reduces the setting of components and improves reliability.

[0047] like Figure 1 , Figure 3 , Figure 4 As shown, in an optional embodiment, a second connecting groove 203 is provided on the transmission shaft 201, one end of the second connecting groove 203 is connected to the control component 700, and a plurality of guide holes 204 are provided on the second connecting groove 203, the guide holes 204 are arranged respectively corresponding to the input component, the output component and the clutch device, and when the control component 700 controls the oil to flow out of the guide holes 204 through the second connecting groove 203, the oil can lubricate and cool the input component, the output component and the clutch device, respectively.

[0048] like Figure 1 , Figure 3 , Figure 5 As shown, it should be noted that, while the oil acts on the pushing member 601, it can also enter the second connecting groove 203, and under the guidance of the multiple guide holes 204 on the transmission shaft 201, flow to the input component, the output component and the clutch device respectively, and after contacting the input component, the output component and the clutch device respectively, take away the heat generated during the power taking operation, control the operating temperature of the input component, the output component and the clutch device, avoid high-temperature deformation, and maintain a stable power taking effect after the first component 400 and the second component 500 in the clutch device repeatedly switch the connection state.

[0049] like Figure 1 As shown, in an optional embodiment, the power take-off system includes a first shell 801 and a second shell 802 that are detachably fixed, a working space is provided in the first shell 801 and the second shell 802, and the input component, the output component and the clutch device are provided in the working space.

[0050] It should be noted that a plurality of seals are respectively disposed in the first housing 801 and the second housing 802 , and the seals at different positions can be matched with dynamic seals and static seals to keep the oil working in a sealed environment, which is conducive to recycling.

[0051] Furthermore, in order to ensure that the pusher 601 can reliably perform the reciprocating displacement operation, seals for restricting the oil are respectively provided on both sides of the pusher 601 to ensure that the oil delivered to one side of the pusher 601 can be stably used for the displacement of the pusher 601 .

[0052] In addition, a plurality of positioning bearings are arranged in the first housing 801 and the second housing 802 to maintain a stable dynamic operating position between the input component, the output component and the clutch device to improve reliability. The specific bearing arrangement position, positioning method and limiting means are not further constrained or explained.

[0053] like Figure 1 , Figure 2 As shown, in an optional embodiment, the control component 700 includes a control valve 701 and an end cover 702, the end cover 702 is fixedly connected to the first shell 801, and the end cover 702 is provided with a plurality of control channels 703 connected to the oil source, and the control valve 701 is fixedly connected to the end cover 702, and controls the oil to enter the working space, or guides the oil to be discharged from the working space.

[0054] like Figure 1 , Figure 5 as well as Figure 6 As shown, Figure 5 A schematic diagram of the structure of the inner hub 102 is provided for an embodiment of the present application. Figure 6 A structural schematic diagram of the outer hub 301 is provided for an embodiment of the present application. In an optional embodiment, the first component 400 includes a plurality of first friction plates 401 arranged at intervals, the second component 500 includes a plurality of second friction plates 501 arranged at intervals, and the first friction plates 401 and the second friction plates 501 are arranged at intervals in sequence, so that the pushing member 601 drives the first friction plates 401 and the second friction plates 501 to clamp each other.

[0055] Multiple first friction plates 401 and multiple second friction plates 501 are arranged in sequence at intervals, which increases the contact area between the first component 400 and the second component 500. During the power transmission process, the connection stability between the first component 400 and the second component 500 is further improved, and the reliability of high-power power-taking conditions is improved.

[0056] Based on the same inventive concept, the present application also provides a transmission system, which includes a power take-off system using a wet friction clutch as described above. Specifically, in the transmission system, except that the power take-off system and related components adopt the technical solutions in the above embodiments, the structures, connection relationships, installation positions, etc. of other devices can refer to the relevant disclosures of the prior art and will not be elaborated here.

[0057] It should be understood that the terms first, second, etc. are only used to distinguish descriptions and should not be understood as indicating or suggesting relative importance. Although the terms first, second, etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another unit. For example, the first unit may be referred to as the second unit, and similarly, the second unit may be referred to as the first unit without departing from the scope of the exemplary embodiments of the present invention.

[0058] It should be understood that the term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that two relationships may exist. For example, A / and B can represent two situations: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0059] It should be understood that in the description of the present invention, the terms "upper", "vertical", "inside", "outside" and the like indicate orientations or positional relationships that are customarily placed when the disclosed product is used, or are orientations or positional relationships that are customarily understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0060] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" 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 direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] The terms used herein are only used to describe specific embodiments and are not intended to limit the exemplary embodiments of the present invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates the opposite meaning. It should also be understood that the terms "include", "comprising", "including", and / or "comprising" when used herein specify the existence of the claimed features, integers, steps, operations, units, and / or components, and do not exclude the existence or increase of one or more other features, quantities, steps, operations, units, components, and / or their combinations.

[0062] Specific details are provided in the following description to facilitate a complete understanding of the exemplary embodiments. However, it should be understood by those of ordinary skill in the art that the exemplary embodiments may be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail to avoid making the exemplary embodiments unclear.

[0063] The above is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

[0064] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field.

Claims

1. A power take-off system using a wet friction clutch, characterized in that: The power take-off system comprises: An input assembly, the input assembly is used to connect to the transmission and synchronously receive power transmitted by the transmission; An output assembly, wherein the output assembly is rotatably arranged, and one end of the output assembly is used to connect to a force-bearing device; A clutch device, the clutch device comprising a first component fixedly connected to the input component, and a second component fixedly connected to the output component, the second component being connected to a pusher, the pusher being capable of driving the second component to be separated from or connected to the first component, so as to block or transmit power between the input component and the output component; A control component, one end of which is used to connect to an oil source. The control component is connected to the pusher and can control the oil to flow to one side of the pusher at different flow rates, thereby pushing the pusher and the second component to move toward the first component.

2. The power take-off system using a wet friction clutch as claimed in claim 1, characterized in that: The input component includes a first gear that is geared with the transmission gear, and an inner hub fixedly connected to the first gear. The first component is movably arranged on the inner hub along the displacement direction of the pusher and can rotate synchronously with the inner hub.

3. The power take-off system using a wet friction clutch as claimed in claim 2, characterized in that: The output component includes a rotatably arranged transmission shaft, on which an outer hub is drivingly connected and rotates synchronously with the transmission shaft. The second component is movably arranged on the outer hub along the displacement direction of the pusher and can rotate synchronously with the outer hub.

4. The power take-off system using a wet friction clutch as claimed in claim 3, characterized in that: The inner hub is provided with a plurality of first splines extending in the displacement direction of the pusher, and the first splines are arranged on the inner hub at circumferential intervals, the first component is provided with a slide groove cooperating with the first spline, the outer hub is provided with a plurality of first guide grooves extending in the displacement direction of the pusher, and the second component is provided with mating ends respectively extending into the first guide grooves.

5. The power take-off system using a wet friction clutch as claimed in claim 3, characterized in that: A first connecting groove is provided on the transmission shaft, one end of the first connecting groove is connected to the control component, and the other end extends to the side of the pushing member away from the second component, and when the control component controls the oil to flow through the first connecting groove to the side of the pushing member, the pushing member can push the second component and the first component to be pressed against each other under the action of the oil.

6. The power take-off system using a wet friction clutch as claimed in claim 5, characterized in that: The transmission shaft is provided with a second communicating groove, one end of which is connected to the control component, and the second communicating groove is provided with a plurality of guide holes, which are respectively arranged corresponding to the input component, the output component and the clutch device, and when the control component controls the oil to flow out of the guide holes through the second communicating groove, the oil can lubricate and cool the input component, the output component and the clutch device respectively.

7. The power take-off system using a wet friction clutch as claimed in claim 1, characterized in that: The power take-off system comprises a first shell and a second shell which are detachably fixed, a working space is provided inside the first shell and the second shell, and the input component, the output component and the clutch device are provided in the working space.

8. The power take-off system using a wet friction clutch as claimed in claim 7, characterized in that: The control assembly includes a control valve and an end cover, wherein the end cover is fixedly connected to the first shell, and a plurality of control channels connected to an oil source are provided on the end cover. The control valve is fixedly connected to the end cover and controls the oil to enter the working space or guides the oil to be discharged from the working space.

9. The power take-off system using a wet friction clutch as claimed in claim 1, characterized in that: The first component includes a plurality of first friction plates arranged at intervals, the second component includes a plurality of second friction plates arranged at intervals, and the first friction plates and the second friction plates are arranged at intervals in sequence, so that the pushing member drives the first friction plates and the second friction plates to clamp each other.

10. A transmission system, characterized in that: The transmission system includes a power take-off system using a wet friction clutch as described in any one of claims 1-9.

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