Pusher clutch

Abstract

The present application discloses a propulsion clutch, which relates to the field of clutch technology and includes an input gear, an output shaft, a transmission disc, a separation elastic member, a propulsion elastic component, and a hydraulic device. The propulsion elastic member is arranged between the transmission disc and the hydraulic device; the separation elastic member is arranged between the input gear and the transmission disc or between the output shaft and the transmission disc. The transmission disc is pushed to the working position by controlling the hydraulic device to reduce the meshing gap, and then, on the basis of hydraulic transmission, the elastic potential energy of the propulsion elastic component is used to further push the transmission disc to achieve reliable meshing of the transmission disc and the input gear, thereby achieving power transmission. The cooperation of the hydraulic device and the propulsion elastic member ensures that the clutch can be quickly and reliably engaged when needed, and remains stable when transmitting torque, avoiding disengagement due to vibration or load changes, and has the advantages of high transmission efficiency and strong stability.

Description

Technical Field

[0001] The present application relates to the technical field of clutches, and in particular to a propulsion clutch. Background Art

[0002] Traditional clutches use hydraulic transmission to achieve propulsion. This single-hydraulic propulsion method often suffers from low transmission efficiency, severe wear, and insufficient stability when operating under heavy loads and high speeds. Furthermore, most systems are complex and require high maintenance costs. Therefore, developing a clutch with a simple structure, high transmission efficiency, and strong stability is of great significance. Summary of the Invention

[0003] In view of this, the purpose of the present application is to provide a push-type clutch with a simple structure, high transmission efficiency and strong stability.

[0004] To achieve the above technical objectives, the present application provides a propulsion clutch, comprising an input gear, an output shaft, a transmission plate, a separation elastic member, a propulsion elastic assembly, and a hydraulic device;

[0005] The transmission disc is mounted on the output shaft, and the transmission disc is movably arranged along the axial direction of the output shaft, and is synchronously rotated with the output shaft along the circumferential direction of the output shaft;

[0006] The input gear is arranged on one side of the transmission disc along the axial direction of the output shaft and is capable of meshing with the transmission disc;

[0007] The hydraulic device is arranged on the other side of the transmission plate along the axial direction of the output shaft, and is used to drive the transmission plate to move toward the input gear to engage with the input gear;

[0008] The propulsion elastic component is arranged between the transmission disc and the hydraulic device, and is used to provide a force along the axial direction of the output shaft to press the transmission disc against the input gear during the meshing process;

[0009] The separation elastic member is arranged between the input gear and the transmission plate or between the output shaft and the transmission plate, and is used to separate the input gear from the transmission plate.

[0010] Furthermore, the propulsion elastic assembly includes a propulsion elastic member, a first fixing gasket and a second fixing gasket;

[0011] The first fixing washer is provided with a first central hole for the output shaft to pass through;

[0012] The second fixing washer is provided with a second center hole for the output shaft to pass through;

[0013] The propulsion elastic member is fixed between the first fixing washer and the second fixing washer.

[0014] Furthermore, the propulsion elastic member is a compression spring;

[0015] There are multiple propulsion elastic members distributed around the circumference of the first center hole.

[0016] Furthermore, the hydraulic device is provided with a first positioning structure;

[0017] The second fixing gasket is provided with a second positioning structure that is positioned and matched with the first positioning structure.

[0018] Furthermore, the first positioning structure is a positioning protrusion;

[0019] The second positioning structure is a positioning hole provided on the second supporting structure for the positioning protrusion to be inserted into.

[0020] Furthermore, the hydraulic device includes a hydraulic cylinder and a piston;

[0021] The hydraulic cylinder body is sleeved on the output shaft;

[0022] A bearing is installed between the hydraulic cylinder body and the output shaft, so as to enable the hydraulic cylinder body and the output shaft to rotate relative to each other;

[0023] The piston is movably mounted in the hydraulic chamber of the hydraulic cylinder;

[0024] The propulsion elastic component is installed between the piston member and the transmission plate.

[0025] Furthermore, a limit member is installed on the hydraulic cylinder body;

[0026] One end of the limiting member extends into the hydraulic cavity and is capable of contacting and abutting against the piston member, so as to limit the maximum distance that the piston member extends out of the hydraulic cavity.

[0027] Furthermore, a stopper is installed on the output shaft;

[0028] The stopper contacts and abuts against the hydraulic device, so as to fix the axial position of the hydraulic device.

[0029] Furthermore, a pressure cover is installed on the input gear;

[0030] The pressure cover contacts and abuts against one end of the separation elastic member.

[0031] Furthermore, the separation elastic member is a compression spring, which is sleeved on the output shaft;

[0032] A spacer sleeve is further provided between the separation elastic member and the output shaft for isolating the separation elastic member from the output shaft.

[0033] From the above technical solutions, it can be seen that the push-type clutch designed in this application has the following beneficial effects:

[0034] 1. Implementing a two-stage propulsion mechanism: The control unit controls the hydraulic system to push the transmission disc to the working position, thereby reducing the meshing gap. Based on the hydraulic transmission, the elastic potential energy of the propulsion elastic component further propels the transmission disc, achieving reliable engagement between the transmission disc and the input gear, thereby achieving power transmission. The coordination of the hydraulic system and the propulsion elastic component ensures that the clutch can engage quickly and reliably when needed, and maintains stability during torque transmission, preventing disengagement caused by vibration or load changes. This provides the advantages of high transmission efficiency and strong stability.

[0035] 2. The input gear, transmission plate, separation elastic member, propulsion elastic component and hydraulic device are designed and coordinated along the axial direction of the output shaft, and the overall structure is simple and compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 paying any creative labor.

[0037] Figure 1 A cross-sectional view of a push-type clutch provided in this application;

[0038] Figure 2 This is an exploded schematic diagram of the piston member and the propulsion elastic member of the propulsion clutch provided in this application;

[0039] Figure 3 This is an exploded schematic diagram of the hydraulic device of the propulsion clutch provided in this application;

[0040] Figure 4 This is an exploded schematic diagram of the engagement between the drive plate and the input gear of the propulsion clutch provided in this application;

[0041] In the figure: 100, transmission plate; 110, output shaft; 120, propulsion elastic member; 130, first fixed gasket; 131, first center hole; 140, second fixed gasket; 141, second center hole; 142, second positioning structure; 150, piston member; 160, limit member; 170, hydraulic cylinder body; 180, stop member; 190, input gear; 200, bearing; 210, separation elastic member; 220, spacer; 230, pressure cover; 130a, first supporting structure; 140a, second supporting structure; 150a, first positioning structure; 100a, upper teeth; 190a, lower teeth. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions of the embodiments of the present application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present application, not all of them. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the embodiments of the present application.

[0043] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application 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 operate in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0044] In the description of the embodiments of the present application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, replaceable connections, or integral connections. They can also refer to mechanical connections or electrical connections. They can also refer to direct connections or indirect connections through an intermediate medium. They can also refer to internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0045] The embodiment of the present application discloses a propulsion clutch.

[0046] See also Figure 1 as well as Figure 4 , an embodiment of the push-type clutch provided in the embodiments of the present application includes:

[0047] Input gear 190 , output shaft 110 , transmission plate 100 , separation elastic member 210 , propulsion elastic assembly and hydraulic device.

[0048] The transmission disc 100 is mounted on the output shaft 110 and is movable along the axial direction of the output shaft 110. It is also circumferentially connected to the output shaft 110 for synchronous rotation therewith. Specifically, the transmission disc 100 and the output shaft 110 are mated via key teeth on the inner diameter, enabling movement in the axial direction and synchronous rotation therewith. Thus, the power transmitted by the input gear 190 is transmitted to the output shaft 110 via the transmission disc 100.

[0049] The input gear 190 is arranged on one side of the transmission disc 100 along the axial direction of the output shaft 110 and can engage with the transmission disc 100; specifically, the transmission disc 100 is a toothed disc, and its upper end face has an upper tooth 100a, and the lower end face of the input gear 190 has a lower tooth 190a that is separable from the upper tooth 100a and is in meshing transmission connection, and the two are engaged through the end face tooth structure.

[0050] The hydraulic device is arranged on the other side of the transmission disc 100 along the axial direction of the output shaft 110, and is used to drive the transmission disc 100 to move toward the input gear 190 to engage with the input gear 190; specifically, the hydraulic device is a device that converts hydraulic energy into mechanical energy and drives the transmission disc 100 to move.

[0051] The propulsion elastic component is arranged between the transmission disc 100 and the hydraulic device, and is used to provide a force along the axial direction of the output shaft 110 to press the transmission disc 100 against the input gear 190 during the engagement process; specifically, the propulsion elastic component serves as a power source for secondary propulsion, providing axial force during the engagement process of the transmission disc 100 and the input gear 190.

[0052] The separation elastic member 210 is arranged between the input gear 190 and the transmission plate 100 or between the output shaft 110 and the transmission plate 100, and is used to separate the input gear 190 from the transmission plate 100; specifically, the separation elastic member 210 has two arrangements, one is arranged between the input gear 190 and the transmission plate 100, and is used to provide an axial force to separate the transmission plate 100 from the input gear 190; the other is arranged between the output shaft 110 and the transmission plate 100, and is used to provide a force on the transmission plate 100 to separate the input gear 190.

[0053] The push-type clutch designed in this application has the following beneficial effects:

[0054] 1. Implementing a two-stage propulsion mechanism: The control device controls the hydraulic system to push the transmission plate 100 to the working position, thereby reducing the meshing gap. Based on the hydraulic transmission, the elastic potential energy of the propulsion elastic component further propels the transmission plate 100, achieving reliable engagement between the transmission plate 100 and the input gear 190, thereby achieving power transmission. The coordination of the hydraulic system and the propulsion elastic component ensures that the clutch can engage quickly and reliably when needed, and maintains stability during torque transmission, preventing disengagement caused by vibration or load changes. This provides the advantages of high transmission efficiency and strong stability.

[0055] 2. The input gear 190, the transmission plate 100, the separation elastic member 210, the propulsion elastic assembly and the hydraulic device are designed and coordinated along the axial direction of the output shaft 110, and the overall structure is simple and compact.

[0056] The above is the first embodiment of the push-type clutch provided in the embodiment of the present application. The following is the second embodiment of the push-type clutch provided in the embodiment of the present application. For details, please refer to Figures 1 to 4 .

[0057] Based on the solution of the above embodiment 1:

[0058] Furthermore, if Figure 1 As shown in FIG2 , the design of the propulsion elastic component includes a propulsion elastic member 120 , a first fixing gasket 130 and a second fixing gasket 140 .

[0059] The first fixing washer 130 defines a first center hole 131 for the output shaft 110 to pass through, and the second fixing washer 140 defines a second center hole 141 for the output shaft 110 to pass through. The propulsion elastic member 120 is fixed between the first fixing washer 130 and the second fixing washer 140 to form an integral assembly.

[0060] A first support structure 130a is provided on the first fixed gasket 130, which is used to provide axial and radial positioning support for one end of the propulsion elastic member 120; a second support structure 140a is provided on the second fixed gasket 140, which is used to provide axial and radial positioning support for the other end of the propulsion elastic member 120. This precise positioning support for both ends of the elastic member has advantages: in the axial direction, it can limit the excessive compression or stretching of the elastic member, ensure that the elastic member is always within a reasonable working deformation range, avoid noise increase due to failure of the elastic member, and maintain the smooth operation of the device. In the radial direction, the positioning support structure can prevent the elastic member from radial displacement, avoid unnecessary collision and friction between the elastic members, thereby protecting the integrity of the elastic member and extending its service life. At the same time, it also reduces the safety hazards that may be caused by the displacement of the elastic member position, thereby improving reliability and safety.

[0061] Furthermore, if Figure 2 As shown, the propulsion elastic member 120 is a compression spring, and there are multiple of them distributed around the circumference of the first center hole 31. There are also multiple corresponding first support structures 130a and second support structures 140a. Using multiple compression springs as the propulsion elastic member 120 can more evenly distribute the applied force compared to a single elastic member, greatly enhancing stability and reliability under stress. Multiple springs work together to complement and buffer each other when subjected to external impact or uneven loads, effectively dispersing pressure and avoiding component damage due to excessive local force, thereby extending the service life of the clutch.

[0062] Furthermore, if Figure 2 As shown, the hydraulic device is provided with a first positioning structure 150a, and the second fixing gasket 140 is provided with a second positioning structure 142 that is positioned and matched with the first positioning structure 150a, thereby achieving positioning and matching between the propulsion elastic component and the hydraulic device.

[0063] Specifically, the first positioning structure 150a is a positioning protrusion, and the second positioning structure 142 is a positioning hole for the positioning protrusion to be inserted into (taking the second supporting structure 140a as an example, the positioning hole can be opened on the second supporting structure 140a).

[0064] The mating of the positioning protrusion and the positioning hole greatly simplifies the installation of the second fixing washer 140 on the hydraulic device. Operators simply insert the positioning protrusion into the positioning hole to quickly achieve initial positioning and connection. Compared to complex bolt connections or other traditional fixing methods, this significantly reduces installation time and labor costs, improving production efficiency. Furthermore, the tight fit between the positioning protrusion and the positioning hole effectively limits the in-plane displacement and rotational freedom of the propulsion elastic component, ensuring its stable and reliable operation.

[0065] Furthermore, if Figure 1 as well as Figure 3 As shown, the hydraulic device includes a hydraulic cylinder 170 and a piston 150 .

[0066] The hydraulic cylinder body 170 is sleeved on the output shaft 110 .

[0067] A bearing 200 (a common sliding bearing 200) is installed between the hydraulic cylinder body 170 and the output shaft 110 to enable relative rotation between the hydraulic cylinder body 170 and the output shaft 110. Specifically, the hydraulic cylinder body 170 and the output shaft 110 are centered by the bearing 200 and can rotate freely relative to each other.

[0068] The piston 150 is movably mounted in the hydraulic chamber of the hydraulic cylinder 170 , and the propulsion elastic member 120 is mounted between the piston 150 and the transmission plate 100 .

[0069] During the meshing process, the piston 150 of the hydraulic device moves axially as the hydraulic cylinder 170 is pressurized, synchronously driving the propulsion elastic component and the transmission plate 100 to propel axially toward the input gear 190 until the end face teeth (upper teeth 100a) of the transmission plate 100 come into contact with the end face teeth (lower teeth 190a) of the input gear 190. In the non-meshed state, the propulsion elastic component will be gradually compressed. When there is a speed difference between the transmission plate 100 and the input gear 190, the propulsion elastic component will provide axial force to the transmission plate 100, pushing the transmission plate 100 to move toward the input gear 190 again until the teeth are fully engaged, thereby realizing power transmission.

[0070] When the transmission plate 100 is fully engaged with the input gear 190, the hydraulic system and the propulsion spring assembly simultaneously apply axial thrust to the transmission plate 100. This axial thrust is greater than the reverse separation force provided by the separation spring 210, thereby ensuring the clutch's locking effect. This design ensures that the clutch remains stable during torque transmission and prevents disengagement due to vibration or load changes.

[0071] During the separation process, the hydraulic device will first release pressure under the control of the control device, and the piston 150 will start to move in the opposite direction. The axial force provided by the piston 150 and the propulsion elastic component to the transmission disc 100 will gradually decrease, and the transmission disc 100 will be completely separated from the end face teeth of the input gear 190 under the action of the separation elastic member 210.

[0072] The clutch engagement and disengagement process designed in this application is achieved through precise control of the hydraulic device and the preload and release of the propulsion elastic component. This process ensures that the clutch can be engaged quickly and reliably when needed and maintains stability when transmitting torque.

[0073] Furthermore, a limit member 160 is mounted on the hydraulic cylinder body 170. One end of the limit member 160 extends into the hydraulic cavity and is able to contact and abut against the piston member 150, thereby limiting the maximum distance that the piston member 150 extends out of the hydraulic cavity.

[0074] Limiter 160 is used to limit the axial displacement of piston 150. When piston 150 reaches its maximum axial displacement, it contacts limiter 160. Limiter 160 effectively prevents piston 150 from excessively extending out of the hydraulic chamber, thus avoiding a series of serious safety issues that may arise from piston overtravel.

[0075] Furthermore, a stopper 180 is installed on the output shaft 110 , and the stopper 180 may be a retaining spring.

[0076] The stopper 180 contacts and abuts against the hydraulic device to fix the axial position of the hydraulic device.

[0077] The presence of stopper 180 ensures that the hydraulic device maintains its fixed axial position on output shaft 110. During clutch operation, especially when subjected to vibration, impact, and frequent start-stop cycles, stopper 180 acts as a solid "anchor," firmly limiting axial movement of the hydraulic device and maintaining it in the predetermined operating position. The use of a retaining spring for this stopper provides a simple structure and easy installation.

[0078] Furthermore, a pressure cover 230 is installed on the input gear 190 , and the pressure cover 230 contacts and abuts against one end of the separation elastic member 210 , thereby effectively preventing wear from occurring during the relative rotation between the separation elastic member 210 and the input gear 190 .

[0079] Furthermore, the separation elastic member 210 is a compression spring, which is sleeved on the output shaft 110 .

[0080] A spacer sleeve 220 is further disposed between the separation elastic member 210 and the output shaft 110 for isolating the separation elastic member 210 from the output shaft 110 .

[0081] During the frequent expansion and contraction process, if the spring directly contacts the output shaft 110, friction and wear are very likely to occur due to the relative movement between the two. The spacer sleeve 220 effectively avoids this direct contact, greatly reducing the degree of wear on the surface of the output shaft 110, and ensuring that its cylindricity and surface finish are maintained for a long time. This not only maintains the mechanical strength and transmission accuracy of the output shaft 110, reduces the problem of decreased power transmission efficiency due to shaft wear, but also extends the service life of the output shaft 110. The spacer sleeve 220 also creates a more ideal working environment for the spring. Isolated by the spacer sleeve 220, the spring can expand and contract more freely and smoothly, avoiding uneven force caused by friction or jamming with the output shaft 110.

[0082] Furthermore, this application should note that the input gear 190 and output shaft 110 are not fixed together, allowing for free relative rotation (i.e., the input gear 190 can freely rotate relative to the output shaft 110). During torque transmission, the propulsion spring assembly and hydraulic cylinder 170 do not rotate with the transmission plate 100, thus avoiding wear on the hydraulic mechanism's seals, simplifying the overall clutch structure, and reducing installation and positioning accuracy requirements.

[0083] The above is a detailed introduction to the propulsion clutch provided in the present application. For those skilled in the art, according to the ideas of the embodiments of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A push-type clutch, characterized in that: It includes an input gear (190), an output shaft (110), a transmission disc (100), a separation elastic member (210), a propulsion elastic component, and a hydraulic device; The transmission disc (100) is mounted on the output shaft (110), and the transmission disc (100) is movably arranged along the axial direction of the output shaft (110), and is synchronously rotatably connected with the output shaft (110) along the circumferential direction of the output shaft (110); The input gear (190) is arranged on one side of the transmission disc (100) along the axial direction of the output shaft (110) and is capable of meshing with the transmission disc (100); The hydraulic device is arranged on the other side of the transmission disc (100) along the axial direction of the output shaft (110), and is used to drive the transmission disc (100) to move toward the input gear (190) to engage with the input gear (190); The propulsion elastic component is arranged between the transmission disc (100) and the hydraulic device, and is used to provide a force along the axial direction of the output shaft (110) to press the transmission disc (100) against the input gear (190) during the meshing process; The separation elastic member (210) is arranged between the input gear (190) and the transmission disc (100) or between the output shaft (110) and the transmission disc (100), and is used to separate the input gear (190) and the transmission disc (100); The propulsion elastic component comprises a propulsion elastic member (120), a first fixing gasket (130) and a second fixing gasket (140); The first fixing gasket (130) is provided with a first center hole (131) for the output shaft (110) to pass through; The second fixing washer (140) is provided with a second center hole (141) for the output shaft (110) to pass through; The propulsion elastic member (120) is fixed between the first fixing gasket (130) and the second fixing gasket (140); The propulsion elastic member (120) is a compression spring; There are multiple propulsion elastic members (120), which are distributed circumferentially around the first central hole (131); The hydraulic device is provided with a first positioning structure (150a); The second fixing gasket (140) is provided with a second positioning structure (142) that cooperates with the first positioning structure (150a); The first positioning structure (150a) is a positioning protrusion; The second positioning structure (142) is a positioning hole for the positioning protrusion to be inserted into.

2. The push-type clutch according to claim 1, characterized in that: The hydraulic device comprises a hydraulic cylinder (170) and a piston (150); The hydraulic cylinder body (170) is sleeved on the output shaft (110); A bearing (200) is installed between the hydraulic cylinder body (170) and the output shaft (110), for enabling the hydraulic cylinder body (170) and the output shaft (110) to rotate relative to each other; The piston member (150) is movably mounted in the hydraulic chamber of the hydraulic cylinder body (170); The propulsion elastic component is installed between the piston member (150) and the transmission plate (100).

3. The push-type clutch according to claim 2, characterized in that: A limiting member (160) is installed on the hydraulic cylinder body (170); One end of the limiting member (160) extends into the hydraulic cavity and is capable of contacting and abutting against the piston member (150), thereby limiting the maximum distance that the piston member (150) extends out of the hydraulic cavity.

4. The push-type clutch according to claim 2, characterized in that: A stopper (180) is mounted on the output shaft (110); The stopper (180) contacts and abuts against the hydraulic device, and is used to fix the axial position of the hydraulic device.

5. The push-type clutch according to claim 1, characterized in that: A pressure cover (230) is mounted on the input gear (190); The pressure cover (230) contacts and abuts against one end of the separation elastic member (210).

6. The push-type clutch according to claim 1, characterized in that: The separation elastic member (210) is a compression spring, which is sleeved on the output shaft (110); A spacer sleeve (220) is further provided between the separation elastic member (210) and the output shaft (110) for isolating the separation elastic member (210) from the output shaft (110).

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