Push type clutch

Abstract

The invention discloses a push type clutch and relates to the technical field of clutches, and the push type clutch comprises an input gear, an output shaft, a transmission disc, a separation elastic piece, a push elastic assembly and a hydraulic device. The propelling elastic piece is arranged between the driving disc and the hydraulic device; the separation elastic piece is arranged between the input gear and the transmission disc or between the output shaft and the transmission disc. The hydraulic device is controlled to push the transmission disc to the working position so as to reduce the meshing clearance, then on the basis of hydraulic transmission, elastic potential energy of the pushing elastic assembly is used for further pushing the transmission disc, reliable meshing of the transmission disc and the input gear is achieved, and therefore power transmission is achieved. The hydraulic device is matched with the propelling elastic piece, so that it is ensured that the clutch can be rapidly and reliably combined when needed, stability is kept during torque transmission, disengagement caused by vibration or load change is avoided, and the clutch has the advantages of being high in transmission efficiency and 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 has problems such as low transmission efficiency, severe wear, and insufficient stability when running under heavy load and high speed. In addition, most of them have complex structures and high maintenance costs. Therefore, it is of great significance to develop a clutch with simple structure, high transmission efficiency and strong stability. 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] In order to achieve the above technical purpose, the present application provides a propulsion clutch, including an input gear, an output shaft, a transmission plate, a separation elastic member, a propulsion elastic component 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 rotatably connected 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 can mesh with the transmission disc;

[0007] The hydraulic device is arranged on the other side of the transmission disc along the axial direction of the output shaft, and is used to drive the transmission disc to move towards the input gear so as to mesh 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] Further, the propulsion elastic component includes a propulsion elastic member, a first fixing gasket and a second fixing gasket;

[0011] The first fixing gasket 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 gasket and the second fixing gasket.

[0014] Further, 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 which is positioned and matched with the first positioning structure.

[0018] Further, 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 comprises a hydraulic cylinder and a piston member;

[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 member is movably mounted in the hydraulic chamber of the hydraulic cylinder body;

[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 can contact and abut 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 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] Further, the separation elastic member is a compression spring, which is sleeved on the output shaft;

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

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

[0034] 1. Realize the two-stage propulsion mechanism: The control device controls the hydraulic device to push the transmission disc to the working position to reduce the meshing gap. 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 between the transmission disc and the input gear, thereby realizing power transmission. The coordination of the hydraulic device and the propulsion elastic component ensures that the clutch can be quickly and reliably engaged when needed, and remains stable when transmitting torque, avoiding disengagement caused by vibration or load changes, and has the advantages of high transmission efficiency and strong stability.

[0035] 2. The input gear, the transmission plate, the separation elastic member, the propulsion elastic component and the 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative labor.

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

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

[0039] Figure 3 It is an exploded schematic diagram of the hydraulic device of the push-type clutch provided in the present application;

[0040] Figure 4 It is an exploded schematic diagram of the meshing of the drive plate and the input gear of the propulsion clutch provided in the present 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 technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application 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. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which 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 operated in a specific orientation, and therefore cannot 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 cannot 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 clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, 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 push-type clutch.

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

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

[0048] 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 rotated and connected with the output shaft 110 along the circumferential direction of the output shaft 110. Specifically, the transmission disc 100 and the output shaft 110 are matched through the key teeth of the inner diameter, so that the transmission disc 100 can be movable in the axial direction and can rotate synchronously with the output shaft 110 in the circumferential direction, so that the power transmitted by the input gear 190 can also be transmitted to the output shaft 110 through 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 mesh 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 meshes with the two through an 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, and provides 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. Realize the two-stage propulsion mechanism: The control device controls the hydraulic device to push the transmission disc 100 to the working position to reduce the meshing gap. On the basis of hydraulic transmission, the elastic potential energy of the propulsion elastic component is used to further push the transmission disc 100 to achieve reliable meshing of the transmission disc 100 and the input gear 190, thereby realizing power transmission. The cooperation between the hydraulic device and the propulsion elastic component ensures that the clutch can be quickly and reliably engaged when needed, and remains stable when transmitting torque, avoiding disengagement caused by vibration or load changes, and has 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 component 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 FIG. 2 , 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 is provided with a first central hole 131 for the output shaft 110 to pass through, and the second fixing washer 140 is provided with a second central 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 component.

[0060] The first fixed gasket 130 is provided with a first support structure 130a for providing axial and radial positioning support for one end of the propulsion elastic member 120; the second fixed gasket 140 is provided with a second support structure 140a for providing 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 stability of the device operation. In the radial direction, the positioning support structure can prevent radial displacement of the elastic member and 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 potential safety hazards caused by the displacement of the elastic member, thereby improving reliability and safety.

[0061] Furthermore, if Figure 2 As shown, the propulsion elastic member 120 is a compression spring, and the number is multiple and distributed around the circumference of the first center hole 31. The corresponding first support structure 130a and the second support structure 140a are also multiple. Compared with a single elastic member, the use of multiple compression springs as the propulsion elastic member 120 can distribute the force more evenly, greatly enhancing the stability and reliability when subjected to force. Multiple springs work together. When subjected to external impact or uneven load, they can complement and buffer each other, effectively disperse the pressure, avoid damage to components due to excessive local force, and thus extend 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 which is positioned and matched with the first positioning structure 150a, so as to achieve the 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 matching mode of the positioning protrusion and the positioning hole greatly simplifies the installation process of the second fixing gasket 140 on the hydraulic device. The operator only needs to accurately insert the positioning protrusion into the positioning hole to quickly achieve the initial positioning and connection of the two. Compared with the complex bolt connection or other traditional fixing methods, it greatly saves installation time and labor costs and improves production efficiency. Furthermore, the close matching of the positioning protrusion and the positioning hole effectively limits the displacement and rotational freedom of the propulsion elastic component in the plane, ensuring its own stable and reliable working state.

[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 the hydraulic cylinder body 170 and the output shaft 110 to rotate relative to each other. 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 member 150 is movably mounted in the hydraulic chamber of the hydraulic cylinder body 170 , and the propulsion elastic member 120 is mounted between the piston member 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, and synchronously drives 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 unengaged 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 disc 100 is fully coupled with the input gear 190, the hydraulic device and the propulsion elastic component synchronously provide an axial thrust to the transmission disc 100. In this state, the axial thrust is greater than the reverse separation force provided by the separation elastic member 210, thereby ensuring the locking effect of the clutch. This design allows the clutch to remain stable when transmitting torque 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, the piston member 150 will start to move in the opposite direction, the axial force provided by the piston member 150 and the thrust 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 engagement and disengagement process of the clutch designed in the present application is achieved by precise control of the hydraulic device and pre-tightening and releasing of the propulsion elastic component. This process ensures that the clutch can be quickly and reliably engaged when needed and remains stable when transmitting torque.

[0073] Furthermore, 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 can contact and abut against the piston member 150, so as to limit the maximum distance that the piston member 150 extends out of the hydraulic cavity.

[0074] The stopper 160 is used to limit the axial displacement of the piston 150. When the piston 150 moves axially to the maximum position, it contacts the stopper 160. The stopper 160 effectively prevents the piston 150 from excessively extending out of the hydraulic chamber, thus avoiding a series of serious safety problems that may be caused by 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 existence of the stopper 180 ensures that the axial position of the hydraulic device on the output shaft 110 remains unchanged. During the operation of the clutch, especially when facing vibration, impact and frequent start-stop operations, the stopper 180 is like a solid "anchor point", which firmly limits the axial movement of the hydraulic device and keeps it in the predetermined working position. The use of a retaining spring for stopper fixing has a simple structure and is easy to install.

[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 the separation elastic member 210 and the input gear 190 from being worn during relative rotation.

[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 to isolate the separation elastic member 210 from the output shaft 110 .

[0081] During the frequent expansion and contraction process, if the spring is in direct contact with 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 reduces the degree of wear on the surface of the output shaft 110, and ensures 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. Under the isolation of 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] In addition, the present application should explain that the input gear 190 and the output shaft 110 are not fixed, and can achieve relative free rotation (that is, the input gear 190 can rotate freely relative to the output shaft 110). During the torque transmission process, the propulsion elastic component and the hydraulic cylinder body 170 do not rotate with the transmission plate 100, thereby avoiding the wear problem of the seal of the hydraulic mechanism, simplifying the overall structure of the clutch, and reducing the installation positioning accuracy requirements.

[0083] The above is a detailed introduction to the push-type clutch provided in the present application. For a person skilled in the art, according to the concept of the embodiments of the present application, there may be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A push-on clutch, characterized in that: It comprises an input gear (190), an output shaft (110), a transmission plate (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 towards the input gear (190) so as to mesh 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) from the transmission disc (100).

2. The push-on clutch according to claim 1, characterized in that: 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 central hole (131) for the output shaft (110) to pass through; The second fixing gasket (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).

3. The push-on clutch according to claim 2, characterized in that: The propulsion elastic member (120) is a compression spring; There are a plurality of propulsion elastic members (120), which are distributed around the circumference of the first central hole (131).

4. The push-on clutch according to claim 3, characterized in that: The hydraulic device is provided with a first positioning structure (150a); The second fixing gasket (140) is provided with a second positioning structure (142) which is positioned and matched with the first positioning structure (150a).

5. The push-on clutch according to claim 4, characterized in that: 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.

6. The push-on clutch according to claim 1, characterized in that: The hydraulic device comprises a hydraulic cylinder body (170) and a piston member (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), and is used to enable 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).

7. The push-on clutch according to claim 6, characterized in that: A limit 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), so as to limit the maximum distance that the piston member (150) extends out of the hydraulic cavity.

8. The push-on clutch according to claim 6, 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.

9. The push-on 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).

10. The push-on 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 also disposed between the separation elastic member (210) and the output shaft (110) and is used to isolate the separation elastic member (210) from the output shaft (110).

Images