Wet clutch and mechanism for evenly separating friction plates of wet clutch one by one

Abstract

The present invention provides a wet clutch and a mechanism for evenly separating the friction plates of the wet clutch one by one. The separation mechanism includes a plurality of cross-rod units, a slideway I, a slideway II and a plurality of ferrules; the slideway I and the adjacent ferrules, the adjacent ferrules and the slideway II and the adjacent ferrules are connected by a cross-rod unit; the cross-rod unit includes two connecting rods, the middle parts of the two connecting rods are hinged to form an X-shaped structure, the two end points on the inner side of the X-shaped structure are respectively hinged to the slideway I and the adjacent ferrule or the two adjacent ferrules or the slideway II and the adjacent ferrule, the sliders on the slideway I and the slideway II are respectively hinged to the two end points on the outer side of the X-shaped structure at both ends; the two opposite end points on the outer sides of the two adjacent X-shaped structures are hinged and connected to the sliding pair on the ferrule. The present invention has a simple structure, and the present invention enables the clutch friction plates to be effectively separated, solving the belt row problem caused by the incomplete separation of the inner and outer tooth friction plates.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical hydraulic transmission, and relates to a technical solution to solve the clutch belt displacement problem in the transmission field, and in particular to a wet clutch and a mechanism for evenly separating the friction plates of the wet clutch one by one. Background Art

[0002] The clutch is a structural component that implements power on-off control during power transmission, and is mainly divided into two types: dry and wet. The wet clutch has the characteristics of uniform pressure distribution, small and uniform wear, large transmission torque capacity, forced cooling, and long life, and is widely used in power transmission systems. In the prior art, when the wet friction clutch structure is in the clutch disengagement state, the active part and the driven part cannot be completely separated, causing varying degrees of belt displacement, resulting in reduced efficiency of the entire machine, and even causing ablation of transmission parts and damage to the overall transmission structure.

[0003] Analysis of the main reasons for the phenomenon of clutch disengagement: 1) When the wet clutch is engaged, the oil that pushes the piston will enter between the inner and outer tooth friction plates and fill the gap between each inner and outer tooth friction plate. When the clutch is separated, there is no hydraulic pressure in the piston cavity, and the piston returns to its original position under the action of the reset spring. There is no gap between the inner and outer tooth friction plates, forming a negative pressure, and it cannot be actively separated, resulting in the active and passive parts The transmission is not completely disconnected, which is the main reason for the phenomenon of clutch disengagement. 2) The friction plate has undergone a certain degree of warping and deformation, resulting in insufficient gaps, and the friction between the inner and outer teeth cannot be separated, causing the clutch to be disengaged.

[0004] In order to improve the problem of belt deflection, the general solutions include appropriately increasing the gap during separation, enhancing the stiffness of the friction plate, and changing the viscosity of the clutch oil. However, the above solutions cannot fundamentally improve or solve the problem of belt deflection. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a mechanism for evenly separating the friction plates of a wet clutch one by one, which has a simple structure and low cost, and can completely separate the active member from the driven member when the clutch is in a disengaged state, thereby solving the belt displacement problem, and a wet clutch containing the mechanism.

[0006] The technical solution adopted by the present invention is: a mechanism for evenly separating the friction plates of a wet clutch one by one, comprising a plurality of cross-rod units, a slideway I, a slider, a slideway II and a plurality of ferrules; the plurality of ferrules are used to connect with a plurality of external tooth friction plates of the wet clutch; the slideway I and the adjacent ferrules, the adjacent ferrules and the slideway II and the adjacent ferrules are connected by a cross-rod unit; the cross-rod unit comprises two connecting rods, the middle parts of the two connecting rods are hinged to form an X-shaped structure, and the two end points on the inner side of the X-shaped structure are respectively hinged to the slideway I and the adjacent ferrule or the two adjacent ferrules or the slideway II and the adjacent ferrule; a slider is respectively provided on the slideway I and the slideway II, and the two sliders are hinged to the two end points on the outer side of the X-shaped structure at both ends; a sliding pair is provided on the ferrule, and the sliding direction of the sliding pair is perpendicular to the moving direction of the slideway I; after the two opposite outer end points of the two adjacent X-shaped structures are hinged, the hinged pair is connected to the sliding pair, so that the hinged pair of the two opposite outer end points of the two adjacent X-shaped structures can slide.

[0007] In the above-mentioned mechanism for evenly separating the friction plates of a wet clutch one by one, the slide groove of the ferrule is a through-hole structure, the slide groove is perpendicular to the moving direction of the slideway I, a slider is provided in the slide groove, the thickness of the slider is greater than the depth of the slide groove, and the two side surfaces of the slider extend out of the two ends of the slide groove respectively.

[0008] In the above-mentioned mechanism for evenly separating the friction plates of a wet clutch one by one, the sleeve is replaced by a paddle.

[0009] A wet clutch containing the above-mentioned mechanism for evenly separating the friction plates of a wet clutch one by one, comprising a piston, a plurality of external-tooth friction plates, a plurality of mechanisms for evenly separating the friction plates of a wet clutch one by one and a clutch pressure plate; the plurality of mechanisms for evenly separating the friction plates of a wet clutch one by one are evenly arranged in a circumferential direction, and each of the plurality of ferrules for evenly separating the friction plates of a wet clutch one by one is respectively connected to the plurality of external-tooth friction plates of the wet clutch; each slideway I for evenly separating the friction plates of a wet clutch one by one is fixedly mounted on the piston; each slideway II for evenly separating the friction plates of a wet clutch one by one is fixedly mounted on the clutch pressure plate.

[0010] In the above-mentioned wet clutch, a groove is arranged at the inner end of the sleeve, and the groove is sleeved on the edge of the external tooth friction plate.

[0011] The above-mentioned wet clutch includes six release mechanisms.

[0012] In the above-mentioned wet clutch, one end of the piston is placed in the outer gear cylinder sleeve, the other end of the piston is connected to one end of the return spring, the other end of the return spring is installed on the spring seat, and the spring seat is fixedly installed on the outer gear cylinder sleeve.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The structure of the present invention is simple. A ferrule is installed on each friction plate of the present invention. The slideway I and the adjacent ferrule, the adjacent ferrules, and the slideway II and the adjacent ferrule are connected by a cross rod unit. When the piston moves, the cross rod unit will be linked to separate the friction plates and the gaps therebetween, so that the clutch friction plates can be effectively separated, and the belt row problem caused by incomplete separation of the inner and outer tooth friction plates due to oil retention and gapless negative pressure fitting of the inner and outer tooth friction plates is solved; the power consumption of the friction plates is reduced, and the transmission efficiency and the accuracy of the transmission action are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The schematic diagram of the mechanism for evenly separating the friction plates of a wet clutch one by one according to the present invention.

[0016] Figure 2 This is a structural diagram of the connection between the cross-rod unit and the slider on the sleeve of the mechanism for evenly separating the friction plates of a wet clutch one by one according to the present invention.

[0017] Figure 3 It is a front view of the wet clutch of the present invention.

[0018] Figure 4 It is a side view of the wet clutch of the present invention.

[0019] In the figure: (1) cross rod unit, (2) slide 1, (3) slider, (4) slide 2, (5) sleeve, (7) external gear cylinder sleeve, (8) piston, (9) external gear friction plate, (10) internal gear friction plate, (11) pressure plate, (12) retaining ring, (13) return spring, (14) spring seat. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] like Figure 1-2 As shown, the mechanism for evenly separating the friction plates of a wet clutch one by one of the present invention comprises a plurality of cross-rod units 1, a slideway I2, a slider 3, a slideway II4 and a plurality of ferrules 5; the plurality of ferrules 5 are used to connect with a plurality of external tooth friction plates 9 of the wet clutch; the slideway I2 and the adjacent ferrules 5, the adjacent ferrules 5, and the slideway II4 and the adjacent ferrules 5 are connected through the cross-rod unit 1. The cross-rod unit 1 comprises two connecting rods, the middle parts of the two connecting rods are hinged to form an X-shaped structure, the two end points inside the X-shaped structure are respectively hinged to the slideway I2 and the adjacent ferrule 5 or the two adjacent ferrules 5 or the slideway II4 and the adjacent ferrule 5, and the two opposite end points inside the two adjacent X-shaped structures are hinged to the ferrule 5.

[0022] A slide groove 51 is provided on the ferrule 5, and the slide groove 51 is perpendicular to the moving direction of the slideway I2. The slide groove 51 adopts a through-hole structure, and the pin passes through the slide groove 51. The two opposite ends of the two adjacent X-shaped structures are hinged to the two ends of the pin respectively. Its structure can also be: a slide groove 51 is provided on the ferrule 5, and the two opposite ends of the two adjacent X-shaped structures are hinged by the pin, and the pin is fixedly connected to the slider, and the slider is placed in the slide groove 51. That is: a sliding pair is provided on the ferrule 5, and the sliding pair slides perpendicular to the moving direction of the slideway I2; after the two opposite ends of the two adjacent X-shaped structures are hinged, the hinge pair is connected to the sliding pair, so that the hinge pair of the two opposite ends of the two adjacent X-shaped structures can slide. The ferrule 5 can be replaced by a pick.

[0023] In the above-mentioned mechanism for evenly separating the friction plates of a wet clutch one by one, the slide groove of the sleeve 5 is a through-hole structure, a slider is provided in the slide groove, the thickness of the slider is greater than the depth of the slide groove, and the two sides of the slider extend out of the two ends of the slide groove respectively.

[0024] like Figure 3-4 As shown, the wet clutch of the present invention comprises a piston 8, a plurality of external tooth friction plates 9, six mechanisms 6 for evenly separating the friction plates of the wet clutch one by one, and a clutch pressure plate 11; the six mechanisms 6 for evenly separating the friction plates of the wet clutch one by one are evenly arranged in the circumferential direction, and each of the plurality of ferrules 5 for evenly separating the friction plates of the wet clutch one by one is respectively connected to the plurality of external tooth friction plates 9 of the wet clutch; a groove is arranged at the inner end of the ferrule 5, and the groove is sleeved at the edge of the external tooth friction plate 9. Each slideway I2 for evenly separating the friction plates of the wet clutch one by one is fixedly mounted on the piston 8; each slideway II4 for evenly separating the friction plates of the wet clutch one by one is fixedly mounted on the clutch pressure plate 11. One end of the piston 8 is placed in the external tooth cylinder sleeve 7, and the other end of the piston is connected to one end of the return spring 13, and the other end of the return spring 13 is mounted on the spring seat 14, and the spring seat 14 is fixedly mounted on the external tooth cylinder sleeve 7.

[0025] When the clutch is in closed condition: hydraulic oil is filled into the external gear cylinder sleeve 7, the piston 8 moves toward the pressure plate 11 under the action of hydraulic pressure, the slideway Ⅱ2 moves with the movement of the piston 8, the distance between the slideways Ⅰ2 and Ⅱ4 becomes smaller, the cross rod unit 1 is compressed, the slider 3 moves outward on the slideways Ⅰ2 and Ⅱ4, the cross rod unit 1 is folded to make the ferrule 5 move evenly, and then the ferrule 5 drives the external gear friction plate to move evenly, which can make the external gear friction plate 9 and the internal gear friction plate 10 fit well, realize the clutch engagement function, and realize the connection of the power transmission.

[0026] When the clutch is disconnected: the external gear cylinder sleeve 7 is hydraulically withdrawn, the piston 8 moves away from the pressure plate 11 under the action of the reset spring 13, the slideway Ⅰ2 moves with the piston 8, the distance between the slideway Ⅰ2 and the slideway Ⅱ4 increases, the cross rod unit 1 changes from the compressed state to the open state, the slider 3 moves inward in the slideway Ⅰ2 and the slideway Ⅱ4, the opening of the cross rod unit 1 makes the ferrule 5 move evenly, and then the ferrule 5 drives the external gear friction plate 9 to move evenly, and starts to separate, so that the external gear friction plate 9 can be evenly separated, and after the reset spring 13 is reset, the distance between the external gear friction plates 9 can be guaranteed to be evenly equal, and the clutch friction plates can be effectively separated, solving the problem of belt row caused by incomplete separation of the internal and external gear friction plates due to oil retention and gapless negative pressure fitting of the internal and external gear friction plates. Then the clutch disconnection function is realized.

Claims

1. A mechanism for evenly separating the friction plates of a wet clutch one by one, comprising a plurality of cross-rod units (1), a slideway I (2), a slider (3), a slideway II (4) and a plurality of ferrules (5); the plurality of ferrules (5) are used to connect with a plurality of external tooth friction plates (9) of the wet clutch; the slideway I (2) and the adjacent ferrules (5), the adjacent ferrules (5) and the slideway II (4) and the adjacent ferrules (5) are connected by the cross-rod unit (1); the cross-rod unit (1) comprises two connecting rods, the middle parts of the two connecting rods are hinged to form an X-shaped structure; the two end points on the inner side of the X-shaped structure are respectively hinged to the slideway I (2) and the adjacent ferrules (5) or the two adjacent ferrules (5) or the slideway II (4) and the adjacent ferrules (5); the slideway I (2), the slideway II (4) A slider (3) is respectively provided on the two sliders, and the two sliders are hinged to the two end points of the outer side of the X-shaped structure at both ends; a sliding pair is provided on the clamping sleeve (5), and the sliding square of the sliding pair is perpendicular to the moving direction of the slideway I (2); after the two opposite outer end points of the two adjacent X-shaped structures are hinged, the hinged pair is connected to the sliding pair, so that the two opposite outer end points of the two adjacent X-shaped structures can slide.

2. The mechanism for evenly separating the friction plates of a wet clutch one by one according to claim 1, characterized in that: The slide groove (51) of the ferrule (5) is a through-hole structure, the slide groove (51) is perpendicular to the moving direction of the slideway I, the pin passes through the slide groove, and the two opposite outer end points of the two adjacent X-shaped structures are respectively hinged to the two ends of the pin.

3. The mechanism for evenly separating the friction plates of a wet clutch one by one according to claim 1, characterized in that: The ferrule (5) is replaced by a pick.

4. A wet clutch comprising a mechanism for evenly separating the friction plates of a wet clutch one by one as claimed in any one of claims 1 to 3, comprising a piston (8), a plurality of external tooth friction plates (9), a plurality of mechanisms for evenly separating the friction plates of a wet clutch one by one and a clutch pressure plate (11); the plurality of mechanisms for evenly separating the friction plates of a wet clutch one by one are evenly arranged in a circumferential direction, and each of the plurality of ferrules (5) for evenly separating the friction plates of a wet clutch one by one is respectively connected to the plurality of external tooth friction plates (9) of the wet clutch; each slideway I (2) for evenly separating the friction plates of a wet clutch one by one is fixedly mounted on the piston (8); each slideway II (4) for evenly separating the friction plates of a wet clutch one by one is fixedly mounted on the clutch pressure plate (11).

5. The wet clutch according to claim 4, characterized in that: A groove is arranged at the inner end of the clamping sleeve (5), and the groove is sleeved on the edge of the outer tooth friction plate (9).

6. The wet clutch according to claim 4, characterized in that: Includes six separation mechanisms.

7. The wet clutch according to claim 4, characterized in that: One end of the piston is placed in the outer gear cylinder sleeve (7), the other end of the piston is connected to one end of a return spring (13), the other end of the return spring (13) is mounted on a spring seat (14), and the spring seat (14) is fixedly mounted on the outer gear cylinder sleeve (7).

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