TW202337720A - Clutch device comprising a clutch set and two clutch actuating sets to solve the problems of large size or insensitive response of the existing transmission devices and provide a clutch device with compact structure and smooth gear-shifting - Google Patents

Abstract

The clutch device of this invention comprises a clutch set and two clutch actuating sets. The clutch set is equipped with a central guide base and two clutch assemblies. The actuating members provided in each clutch actuating set include an actuating ring gear, an abutment ring, and a buffer elastic member between the actuating ring gear and the abutment ring. The two actuating ring gears abut against the two clutch cam segments provided on the central guide base, and the two abutment rings abut against the two clutch assemblies. Pushed by the two clutch cam segments, the two actuating members move and control the two clutch assemblies. The central guide base of this invention is equipped with a hollow sleeve part to accommodate the components, thereby reducing the volume. The buffer elastic member between the actuating ring gear and the abutment ring enables continuous contact between the abutment ring and the clutch assembly, which can smoothly transmit force and provide buffering and preloading to solve the problems of large size or insensitive response of the existing transmission devices, and provide a clutch device with compact structure and smooth gear-shifting.

Description

clutch device

The present invention relates to a transmission device, and in particular, to a clutch device that is compact in structure and can shift gears smoothly.

When a vehicle is driving, it will require different power to cope with different road conditions. For example, when the vehicle is climbing a hill, a low-speed gear with a lower speed is needed; while when driving on a flat road, a high-speed gear with a high speed is needed. Therefore, in order to obtain different power, the vehicle needs to be equipped with a transmission device to cooperate with the driving device to change different gears.

An existing transmission device includes, in addition to an input shaft, an output shaft and an intermediate shaft, a plurality of gear shafts connected to a gear lever. The number of gear shafts is set according to the number of gears. Among them, the input shaft, the output shaft, and the intermediate shaft are provided with a plurality of meshing gears. Each gear shaft is equipped with a synchronizer that is placed on the output shaft. The user operates the gear lever to select the gear shaft corresponding to different gears, and the synchronizer provided on the gear shaft is used to connect the output shaft and the intermediate shaft to output different powers.

However, in addition to the input shaft, output shaft and intermediate shaft, the existing transmission device also needs to provide gear shafts according to the number of gears. Therefore, the existing transmission device is relatively loose in structure and large in size, making it unsuitable for vehicles with small installation space.

In addition, the clutches of existing transmission devices are divided into dry clutches actuated by a linkage arm and wet clutches actuated by hydraulic oil. Among them, the dry clutch requires an additional connecting arm and a space for the connecting arm to be reserved; while the wet clutch needs to transmit power through hydraulic oil, and has the problem of insensitive response, and there is room for improvement.

In order to solve the problem of large size or insensitive response of the existing transmission device. This invention provides a clutch device which has a compact structure and can achieve the purpose of reducing the volume and making gear shifting smooth.

The clutch device proposed by this creation to solve the technical problem includes: A clutch group, which includes a central guide seat and two clutch components; The central guide base is used to be fixed to a clutch hub and includes a sleeve part and two clutch cam segments; The casing part is in the shape of a circular tube and includes an axial direction and two ends opposite to the axial direction of the casing part; Each clutch cam segment is arranged around the outer peripheral surface of the casing part and includes a pushing curved surface, and the pushing curved surfaces of the two clutch cam segments are respectively facing both ends of the casing part; Each clutch assembly includes a plurality of clutch members, each clutch member is coaxially arranged with the casing part and can reciprocate along the axial direction of the casing part; and Two clutch actuating groups, each of which includes an actuating member; the actuating member is annular and rotatably mounted on the casing portion, and includes an actuating ring gear, a resisting ring and A plurality of buffer elastic members; the side of the actuating ring gear is provided with a plurality of actuating butt portions at intervals; the abutting ring is coaxially combined with the actuating ring gear of the actuating member through a plurality of positioning pieces; The plurality of buffer elastic members are interposed between the actuation ring gear and the abutment ring, and are respectively placed on the plurality of positioning members, and the two ends of each buffer elastic member respectively abut against the actuation ring gear and the abutment ring. The abutment ring; The two actuating ring gears of the two actuating members of the two clutch actuating groups respectively abut against the two clutch cam segments with the provided actuating resisting portions, and the two abutting rings of the two actuating members respectively abut against the two clutches. Assembling the assembly, the two actuating ring gears can be pushed by the two clutch cam segments, so that the two actuating parts move along the sleeve portion.

In the clutch device, the pushing curved surface of each clutch cam segment is provided with a plurality of clutch actuating areas at intervals, and each clutch actuating area includes a plurality of actuating protrusions.

In the clutch device, each clutch actuation area includes two actuation protrusions and a limiting recess located between the two actuation protrusions.

The clutch device, wherein the central guide seat includes two auxiliary guide grooves, the two auxiliary guide grooves are respectively close to both ends of the casing part of the central guide seat, and each of the auxiliary guide grooves is recessed in the The outer circumferential surface of the sleeve portion surrounds the sleeve portion in an undulating manner; the actuating ring gear of each actuating member is provided with a plurality of guide convex portions at intervals around the inner periphery, and one of the two actuating members is The two actuation ring gears are respectively inserted into the two auxiliary guide grooves of the sleeve part with the provided guide convex parts.

In the clutch device, each clutch member includes a clamping ring and a friction ring arranged coaxially; the friction ring has two rough surfaces, and its outer diameter is smaller than the outer diameter of the clamping ring.

In the clutch device, each clutch member includes a wave spring; the wave spring of the clutch member is coaxially arranged with the clamping ring and the friction ring of the clutch member; and a plurality of clutch members of each clutch assembly are arranged in such a manner that The wave springs are set against each other.

In the clutch device, each of the buffer elastic members is a compression spring.

The efficiency improvements that can be obtained by the technical means of this creation are: 1. The central guide seat of this invention is equipped with a clutch cam segment to push against the actuating member, and then uses the actuating member to push against the clutch component and control the action of the clutch component. This invention integrates the structure of the actuating clutch assembly into the central guide seat. The central guide seat is equipped with a hollow sleeve portion to accommodate the components, which makes the structure of the invention more concise and compact, and helps to reduce the size of the structure. volume. In addition, a plurality of buffer elastic members are provided between the actuating ring gear of the actuating member and the abutment ring to keep the abutment ring in continuous contact with the clutch assembly. In addition to smoothly transmitting force and improving the efficiency of force transmission, In addition to making gear shifting smoother and without any sense of frustration, it can also provide buffering and pre-pressure when pushing against the clutch assembly, ensuring that when the clutch assembly is actuated, the abutment ring abuts multiple clutch parts to provide a pre-pressure The clamping function avoids slippage in the clamping rings and friction rings of multiple clutch parts. 2. In each actuating part of this invention, the actuating ring gear and the abutting ring system are combined by a plurality of positioning parts, and a plurality of buffer elastic parts are respectively set on the plurality of positioning parts, and abut against each other at the same time. Moving ring gear and abutment ring. Each buffer elastic piece simultaneously abuts the actuating ring gear and the abutting ring, maintains the distance between the actuating ring gear and the abutting ring, and produces a preloading effect on a corresponding clutch component; furthermore, a plurality of buffers The elastic member is guided by a plurality of positioning members and can stably abut against the actuation ring gear and the abutment ring. 3. The actuation ring gear of each actuating member of the invention is provided with a guide protrusion, and the guide protrusion of the actuation ring gear of each actuator is inserted into the auxiliary guide groove of the sleeve part. , so that each actuating part can stably and smoothly rotate and move relative to the sleeve part of the central guide seat, so that the clutch actuating group can accurately drive the clutch assembly to reciprocate. 4. Each clutch member of the clutch assembly of this invention is provided with a wave spring; when the clutch assembly is not actuated, the plurality of clutch members of the clutch assembly are pressed against each other by the provided wave spring. The wave spring provided in each clutch member forces the retaining ring and friction ring of two adjacent clutch members to disengage, thereby preventing the clutch assembly from operating unexpectedly.

In order to understand the technical features and practical effects of this invention in detail, and to realize it according to the content of the invention, the preferred embodiment as shown in the drawings is further described in detail as follows:

As shown in Figures 1 to 3, the transmission mechanism equipped with the clutch device of the present invention includes a transmission shaft 10, a shift camshaft 20, a compound planetary gear set 30, a first synchronization assembly 40A, a second Synchronization assembly 40B, a clutch group 50, a first clutch actuation group 60A and a second clutch actuation group 60B.

As shown in FIGS. 1 to 3 , the transmission shaft 10 is spaced parallel to the shift camshaft 20 , and the compound planetary gear set 30 can be connected to and driven by the transmission shaft 10 ; the clutch The group 50 is connected to the compound planetary gear set 30, and the two clutch actuating groups 60A and 60B connect the shift camshaft 20 and the clutch group 50, so that the shift camshaft 20 can be driven by the two clutch actuating groups. 60A, 60B control the output of the compound planetary gear set 30 .

As shown in FIGS. 1 to 3 , the compound planetary gear set 30 includes a planet carrier, a large sun gear, a small sun gear, a plurality of short-axis planetary gears, a plurality of long-axis planetary gears and an output ring gear. Since the planetary gear set is already an existing technology and has nothing to do with the buffering and preloading functions intended to be provided by this invention, it will not be described in detail here.

As shown in Figures 1 to 3, each synchronization assembly 40A/40B includes a driven sleeve 41, a set ring 42A/42B and a linkage arm 43A/43B; since the aforementioned components of each synchronization assembly 40A/40B are The buffering and preloading functions that this creation intends to provide have nothing to do with it, so no further explanation will be given here. Wherein, the first synchronization assembly 40A further includes a first transmission member 44 that can be connected with the planet carrier and the small sun gear of the compound planetary gear set 30; the second synchronization assembly 40B further includes a first transmission member 44 that can be connected with the compound planetary gear. The second transmission member 45 is connected to the large sun gear of the group 30 . The first synchronization component 40A and the second synchronization component 40B are used to connect the transmission shaft 10 and the compound planetary gear set 30 to change gears.

As shown in FIGS. 1 to 4 , the clutch group 50 includes a central guide seat 51 , a first clutch component 52A and a second clutch component 52B. The central guide seat 51 includes a sleeve part 511, a flange part 512, a first auxiliary guide groove 513A, a second auxiliary guide groove 513B, a first clutch cam section 514A and a second clutch cam section 514B. .

As shown in FIG. 4 , the sleeve portion 511 is in the shape of a circular tube and includes an axial direction and two opposite ends in the axial direction of the sleeve portion 511 . The sleeve portion 511 is coaxially sleeved on the transmission shaft 10 . The flange portion 512 is arranged around the outer circumferential surface of the sleeve portion 511 and is located in the middle section of the sleeve portion 511 . The central guide seat 51 is combined with a clutch hub through the flange portion 512 . The two auxiliary guide grooves 513A and 513B are respectively close to both ends of the casing part 511. The two auxiliary guide grooves 513A and 513B are recessed on the outer peripheral surface of the casing part 511 and surround the casing in undulating shapes in different forms. Tube part 511. The two clutch cam segments 514A and 514B are undulatingly arranged around the outer circumferential surface of the sleeve portion 511 in different forms, and each clutch cam segment 514A/514B includes a wavy pushing curved surface, each of which has a undulating shape. The pushing curved surface of the clutch cam segment 514A/514B is provided with a plurality of clutch actuating areas 515 at intervals. Each clutch actuating area 515 includes two actuating convex portions 516 and a limiting concave portion located between the two actuating convex portions 516. 517; The two clutch cam segments 514A and 514B are between the two auxiliary guide grooves 513A and 513B and separated by the flange part 512. The pushing curved surfaces of the two clutch cam segments 514A and 514B face the sleeve respectively. both ends of part 511.

The sleeve part 511 of the central guide base 51 of the present invention is in the shape of a hollow tube. The space in the sleeve part 511 can accommodate some components of the transmission shaft 10 and the second synchronization assembly 40B, making the invention in space. It is more efficient in use and has the advantages of compact structure and small size.

As shown in FIGS. 1 to 3 , each clutch assembly 52A/52B includes a plurality of clutch members 521 . As shown in FIG. 5 , each clutch member 521 includes a retaining ring 522 , a friction ring 523 and a wave spring 524 arranged coaxially. The outer circumference of the locking ring 522 is provided with a plurality of locking protrusions at intervals. The two surfaces of the friction ring 523 are rough. The inner circumference of the friction ring 523 is provided with a plurality of locking protrusions 525 at intervals, and its outer diameter is less than The outer diameter of the clamping ring 522. The wave spring 524 surrounds the friction ring 523 . The plurality of clutch members 521 are coaxially arranged with the sleeve portion 511 , and the plurality of clutch members 521 can reciprocate along the axial direction of the sleeve portion 511 . When each clutch assembly 52A/52B is not actuated, its plurality of clutch members 521 are pressed against the wave springs 524 provided; when each clutch assembly 52A/52B is actuated, its plurality of clutch members 521 are provided with wave springs 524. 524 is compressed and abuts against the provided friction ring 523 . The clutch members 521 of the first clutch assembly 52A and the second clutch assembly 52B are connected with the compound planetary gear set 30 by the engaging protrusions 525 provided on the inner periphery of the friction ring 523, thereby controlling the compound planetary gear set 30. Can the large sun gear and planet carrier of the planetary gear set 30 rotate?

As shown in FIGS. 1 to 3 , each clutch actuation group 60A/60B includes an actuator 62 . As shown in Figures 2, 3, and 6, each of the actuating members 62 is annular and rotatably sleeved on the sleeve portion 511. Each of the actuating members 62 includes an actuating ring gear 621, an abutment The backing ring 622 and a plurality of buffer elastic members 623. The actuation ring gear 621 is annular. The actuation ring gear 621 is provided with a plurality of teeth on the outer periphery, three actuating butt portions 624 on the side, and three guides on the inner periphery. The convex portions 625 , each of the guide convex portions 625 are radially protruding from the inner periphery of the actuation ring gear 621 . The actuating ring gear 621 of each actuating member 62 meshes with a driving gear 61 fixed on the shift camshaft 20; the abutment ring 622 is coaxially combined with the actuating ring gear 621. The plurality of buffer elastic members 623 are interposed between the actuation ring gear 621 and the resisting ring 622; in the preferred embodiment of the present invention, each buffer elastic member 623 is a compression spring, and each buffer elastic member 623 is a compression spring. Both ends of the elastic member 623 respectively abut against the actuation ring gear 621 and the abutment ring 622 . Each buffer elastic member 623 of the present invention is not limited to a compression spring. As long as each buffer elastic member 623 can elastically support the actuation ring gear 621 and the abutment ring 622, it is the subject matter to be protected by this invention. In the preferred embodiment of the invention, the actuating ring gear 621 and the resisting ring 622 of each actuating member 62 are combined by a plurality of positioning members 626, and the plurality of buffer elastic members 623 are respectively set in the A plurality of positioning members 626, each buffer elastic member 623 simultaneously abuts the actuating ring gear 621 and the abutting ring 622, maintaining the distance between the actuating ring gear 621 and the abutting ring 622, and correspondingly The clutch assembly 52A/52B produces a preloading effect. Furthermore, the plurality of buffer elastic members 623 are guided by the plurality of positioning members 626 to stably abut the actuation ring gear 621 and the abutment ring 622 .

As shown in FIGS. 1 to 3 , the two actuating members 62 of the two clutch actuating groups 60A and 60B are rotatably sleeved on the sleeve portion 511 and can reciprocate along the sleeve portion 511 . The two actuating ring gears 621 of the two actuating members 62 mesh with a driving gear 61 fixed on the shift camshaft 20 . The two actuating members 62 use the provided actuating ring gear 621 to abut against the central guide seat 51 fixed on the clutch hub. Specifically, the two actuating ring gears 621 respectively abut against the two pressing curved surfaces of the two clutch cam sections 514A and 514B of the central guide seat 51 with the provided actuating resisting portions 624; and the two actuating rings The gears 621 are respectively inserted into the two auxiliary guide grooves 513A and 513B of the sleeve portion 511 with the guide protrusions 625 provided.

As shown in FIGS. 7 and 8 , when the shift camshaft 20 rotates, it drives the driving gear 61 to rotate. The two actuating members 62 of the two clutch actuating groups 60A and 60B and the two actuating ring gears 621 meshed with the driving gear 61 are driven to rotate relative to the sleeve portion 511 . The two actuating members 62 of the two clutch actuating groups 60A and 60B, the two rotating actuating ring gears 621 can be pushed along the sleeve portion by the pushing curved surfaces of the two clutch cam segments 514A and 514B. 511 moves, so that the two actuating members 62 can move toward the two ends of the sleeve portion 511 respectively. The guide convex portions 625 of the two actuation ring gears 621 can move along the two auxiliary guide grooves 513A and 513B respectively, so that the two actuating members 62 can reciprocate along the sleeve portion 511 to help the two actuators. The moving ring gear 621 can rotate smoothly relative to the sleeve portion 511 .

10: Drive shaft 20:Shift camshaft 30: Compound planetary gear set 40A: First synchronization component 40B: Second synchronization component 41: driven bushing 42A: Collar 42B: Collar 43A: Linked arm 43B: Linked boom 44:First transmission part 45:Second transmission part 50: Clutch group 51:Central guide seat 511:Casing Department 512:Flange Department 513A: First auxiliary guide trench 513B: Second auxiliary guide trench 514A: First clutch cam section 514B: Second clutch cam section 515:Clutch actuation area 516: Actuating convex portion 517: Limit the recess 52A:First clutch assembly 52B: Second clutch assembly 521:Clutch parts 522:Clamping ring 523: Friction ring 524:Wave spring 525: stuck convex part 60A: First clutch actuation group 60B: Second clutch actuation group 61:Driving gear 62: Actuator 621: Actuation ring gear 622:Butt ring 623: Buffering elastic parts 624: Actuate the end 625:Guide convex part 626: Positioning parts

Figure 1 is an appearance perspective view of a transmission mechanism equipped with a preferred embodiment of the present invention. Figure 2 is a partial cross-sectional perspective view of the transmission mechanism equipped with the preferred embodiment of the present invention. Figure 3 is a side partial cross-sectional view of the transmission mechanism equipped with the preferred embodiment of the present invention. Figure 4 is an appearance perspective view of the central guide base of the preferred embodiment of this invention. Figure 5 is a perspective view of the appearance of the clutch member according to the preferred embodiment of the present invention. Figure 6 is a perspective view of the appearance of the actuator of the preferred embodiment of the present invention. Figure 7 is a partial enlarged side cross-sectional view of the transmission mechanism equipped with the preferred embodiment of the present invention. Figure 8 is a partial enlarged side cross-sectional view of the transmission mechanism equipped with the preferred embodiment of the present invention.

10: Drive shaft

20:Shift camshaft

30: Compound planetary gear set

40A: First synchronization component

40B: Second synchronization component

41: driven bushing

42A: Collar

42B: Collar

43A: Linked arm

44:First transmission part

45:Second transmission part

50: Clutch group

52A:First clutch assembly

52B: Second clutch assembly

60A: First clutch actuation group

60B: Second clutch actuation group

61:Driving gear

Claims (10)

A clutch device includes: A clutch group, which includes a central guide seat and two clutch components; The central guide base is used to be fixed to a clutch hub and includes a sleeve part and two clutch cam segments; The casing part is in the shape of a circular tube and includes an axial direction and two ends opposite to the axial direction of the casing part; Each clutch cam segment is arranged around the outer peripheral surface of the casing part and includes a pushing curved surface, and the pushing curved surfaces of the two clutch cam segments are respectively facing both ends of the casing part; Each clutch assembly includes a plurality of clutch members, each clutch member is coaxially arranged with the casing part and can reciprocate along the axial direction of the casing part; and Two clutch actuating groups, each of which includes an actuating member; the actuating member is annular and rotatably mounted on the casing portion, and includes an actuating ring gear, a resisting ring and A plurality of buffer elastic members; the side of the actuating ring gear is provided with a plurality of actuating butt portions at intervals; the abutting ring is coaxially combined with the actuating ring gear of the actuating member through a plurality of positioning pieces; The plurality of buffer elastic members are interposed between the actuation ring gear and the abutment ring, and are respectively placed on the plurality of positioning members, and the two ends of each buffer elastic member respectively abut against the actuation ring gear and the abutment ring. The abutment ring; The two actuating ring gears of the two actuating members of the two clutch actuating groups respectively abut against the two clutch cam segments with the provided actuating resisting portions, and the two abutting rings of the two actuating members respectively abut against the two clutches. Assembling the assembly, the two actuating ring gears can be pushed by the two clutch cam segments, so that the two actuating parts move along the sleeve portion. The clutch device of claim 1, wherein the pushing curved surface of each clutch cam segment is provided with a plurality of clutch actuation areas at intervals, and each clutch actuation area includes a plurality of actuation protrusions. The clutch device of claim 2, wherein each clutch actuation area includes two actuation protrusions and a limiting recess located between the two actuation protrusions. The clutch device of claim 3, wherein the central guide seat includes two auxiliary guide grooves, and the two auxiliary guide grooves are respectively close to both ends of the casing portion of the central guide seat, and each auxiliary guide groove It is recessed in the outer peripheral surface of the sleeve part and surrounds the sleeve part in an undulating manner; the actuating ring gear of each actuating member is provided with a plurality of guide protrusions spaced around the inner periphery, and the two The two actuating ring gears of the actuating member are respectively inserted into the two auxiliary guide grooves of the sleeve portion with the provided guide convex portions. The clutch device according to claim 4, wherein each clutch member includes a clamping ring and a friction ring arranged coaxially; the friction ring has two rough surfaces, and its outer diameter is smaller than the outer diameter of the clamping ring. . The clutch device according to claim 5, wherein each clutch member includes a wave spring; the wave spring of the clutch member is coaxially arranged with the retaining ring and the friction ring of the clutch member; a plurality of clutches of each clutch assembly The parts are pressed against each other by the provided wave spring. The clutch device of claim 1, wherein the central guide seat includes two auxiliary guide grooves, and the two auxiliary guide grooves are respectively close to both ends of the casing part of the central guide seat, and each auxiliary guide groove It is recessed in the outer peripheral surface of the sleeve part and surrounds the sleeve part in an undulating manner; the actuating ring gear of each actuating member is provided with a plurality of guide protrusions spaced around the inner periphery, and the two The two actuating ring gears of the actuating member are respectively inserted into the two auxiliary guide grooves of the sleeve portion with the provided guide convex portions. The clutch device according to claim 1, wherein each clutch member includes a clamping ring and a friction ring arranged coaxially; the friction ring has two rough surfaces, and its outer diameter is smaller than the outer diameter of the clamping ring. . The clutch device according to claim 8, wherein each clutch member includes a wave spring; the wave spring of the clutch member is coaxially arranged with the retaining ring and the friction ring of the clutch member; a plurality of clutches of each clutch assembly The parts are pressed against each other by the provided wave spring. The clutch device according to any one of claims 1 to 9, wherein each of the buffer elastic members is a compression spring.

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