TWI444305B - Non-synchronous engagement of the clutch - Google Patents

Description

Non-synchronized clutch

The invention relates to a clutch, and more particularly to a centrifugal clutch.

In the transmission system of the vehicle, the centrifugal clutch is usually disposed between the stepless transmission and the transmission shaft, and the stepless transmission drives the centrifugal clutch by a belt, and then the centrifugal clutch drives the transmission shaft, thereby making the tire Rotating, the function of the stepless speed change device is to enable the vehicle to change the gear position according to the driving speed to obtain different driving torque or rotation speed, so that the vehicle can smoothly travel on the road surface, and the clutch can smoothly transmit the engine power to the transmission shaft in time. , or separate the engine power from the drive shaft, allowing the engine to continue to run without a flame.

The conventional centrifugal clutch is disclosed in the "Motorcycle Clutch Improved Structure" of the Republic of China New Patent Publication No. 382350, which mainly has a plurality of clutch weights, a drive plate, a tension spring, a clutch jacket and the like, wherein the clutch is equipped with The weight is an arc-shaped body, and is fixed on the outer edge to make a piece, and a pivot hole is provided at the end for combination with the positioning pin of the driving plate; and the driving plate is connected to the engine output transmission component; The fastening block is provided with a suitable fastening hole, so that the clutch weights can be respectively fastened and fastened by the spring with the appropriate tension and the fastening hole; the clutch sleeve is sleeved on the outer edge of the clutch weight and formed on the outer edge. An annular joint surface for engaging the clutch weight to engage the sheet, and a shaft hole for connecting with the locomotive pulley is disposed at the center.

In the implementation, the output of the engine and the clutch weight are rotated correspondingly, and when the centrifugal force of the clutch weight is less than the spring engagement force, the clutch casing is not rotated, and the engine speed is increased. When the centrifugal weight of the clutch weight is greater than the spring engagement force, the clutch weight is externally stretched, and the outer edge is brought into engagement with the annular engaging surface of the clutch casing, so that the clutch casing can rotate corresponding to the rotating wheel.

It can be seen from the above that the conventional clutch is driven by the moving plate at a high speed to drive the weight. The outer sheet is in contact with the clutch jacket and the conveyor wheel is rotated. However, in order to increase the proper bite force, or to increase the bonding force generated at a high speed, the conventional centrifugal clutch may increase the weight of the weight body or increase the weight of the weight. The friction coefficient, in order to achieve the desired bite force or bonding force, but in either of the above ways, it will be bitten once in a full-stage manner, so that the counterweight under high-speed swing can be used to drive the stationary clutch jacket. It often causes excessive friction due to the moment of the collision, causing excessive vibration between the moving plate and the clutch casing, causing improper wear of the clutch, causing the problem of driving jitter, and even the transmission shaft between the clutch casing and the wheel of the wheel. Loose, so there is a need for improvement.

The main object of the present invention is to solve the problem that when the movable plate of the conventional clutch is driven against the outer cover of the clutch, vibration is generated and the vehicle is shaken.

To achieve the above object, the present invention provides a clutch for non-synchronous engagement, comprising a cover, a disk, at least two first turbulence blocks and at least two second turbulence blocks. The cover has a ring wall, an accommodating space surrounded by the ring wall and provided for the disk body, and the disk body has a rotation stroke driven by a driving shaft, the rotation stroke including a first speed interval and a rotation speed a second rotation speed section that is higher than the first rotation speed section; the first swaying block and the second swaying block surround a center of the disk body and are staggeredly disposed on the disk body, the first swaying block has a The second rotating end of the disk body is pivotally connected to the first rotating end of the disk body, and the second rotating block has a second rotating end pivoted to the disk body and a second rotation away from the second rotating end The second bite end of the end.

The first occlusal end of the first swaying block and the second occlusal end of the second swaying block abut the ring in the first rotational speed interval and the second rotational speed interval respectively in the rotational stroke The cover drives the cover, and the first engaging end still abuts against the ring wall in the second rotational speed interval.

In this way, the first occlusal end of the first swaying block and the second occlusal end of the second swaying block are respectively pressed against the ring wall in different speed ranges, so that the disk The rotation of the body provides a small and large friction force on the cover, and the cover is rotated to avoid directly providing an excessive friction force. The vibration generated on the cover allows the disk to be smoothly engaged with the cover and transmitted.

The invention solves the problem of driving jitter and the premature full-segment occlusion of the weight block, so that the weight body is engaged with the cover in sequence, and a plurality of progressively occlusal forces are applied to achieve the advantage of smooth running. In the first embodiment, in order to change the weight of the weight body, in order of the opening and closing of the weights, in the second embodiment, in order to change the k value of the weight/pressure spring of the weight, to reach the weight In the third embodiment, in order to change the symmetry and different distances of the pivot body of the weight body to the axis of the clutch body, in order to achieve the opening and closing of the weights, the detailed description and technical contents are now The description of the cooperation diagram is as follows:

Referring to FIG. 1 , FIG. 2A and FIG. 2B , FIG. 1 is a perspective exploded view of a first embodiment of the present invention, and FIG. 2A is a schematic diagram of a rotation stroke according to a first embodiment of the present invention. 2B is a schematic diagram of a rotational stroke of a first embodiment of the present invention. The present invention provides a clutch for non-synchronous engagement, comprising a cover 10, a disk 20, at least two first sway blocks 30, and at least Two second swaying blocks 40. The cover 10 has a ring wall 11 and an accommodating space 12, and the accommodating space 12 is formed by the ring wall 11. The disk body 20 is disposed in the accommodating space 12, and the disk body 20 has a center C. An opening 21 is provided in the center C. Here, the center C is defined as a center of mass of the disk body 20. A drive shaft 70 passes through the opening 21 to drive the disk body 20 to rotate.

The first sway block 30 and the second sway block 40 surround the center C of the disk body 20 and are alternately disposed on the disk body 20. In this embodiment, the first sway block 30 and the The second turbulence block 40 and the second turbulence block 40 are formed on the disk body 20 by a central symmetry of the square C, but not limited thereto. The moving blocks 40 may also be three, four or five, etc., respectively, and the center C is also formed with a slightly symmetrical hexagon, octagon or decagon, etc., and so on. The first swaying block 30 has a first rotating end 31 and a first nip end 32 away from the first rotating end 31. The first rotating end 31 is pivotally connected to the disc body 20, and the second swaying portion The block 40 has a second rotating end 41 And a second nip end 42 away from the second rotating end 41, the second rotating end 41 is pivotally connected to the disk body 20, and the first nip end 32 and the second nip end 42 are respectively attached with a friction plate. 321,421.

The first elastic member 50 and the second elastic member 40 are respectively connected to a first elastic member 50 and a second elastic member 60. In this embodiment, the first elastic member 50 has a first a tensile end 51 and a first fixed end 52 away from the first tensile end 51. The first tensile end 51 is coupled between the first engaging end 32 and the first rotating end 31. The first fixing The second elastic member 60 has a second tensile end 61 and a second fixed end 62 away from the second tensile end 61. The second pull is connected to the second end. The extending end 61 is connected between the second engaging end 42 and the second rotating end 41. The second fixing end 62 is connected to the adjacent first rotating end 31. In this embodiment, the first elastic member The second elastic member 60 is a spring, and the second elastic member 60 has a tensile force greater than the first elastic member 50.

Referring to FIG. 2A and FIG. 2B, the disk body 20 is driven by the drive shaft 70 to have a rotation stroke, and the rotation stroke includes a first rotation speed interval and a rotation speed higher than the first rotation speed interval. The second rotational speed interval, in this embodiment, the rotational speed of the first rotational speed interval is between 1800 rpm and 5000 rpm, and the rotational speed of the second rotational speed interval is between 7,500 rpm and 15,000 per minute. Between the rotations, the first swaying block 30 and the second swaying block 40 are subjected to a centrifugal force, and the first rotating end 31 and the second rotating end 41 are respectively pivoted. The first occlusion end 32 and the second occlusion end 42 are outwardly oscillated, and the first swaying block 30 and the second swaying block 40 are respectively received by the first elastic member 50 and the first The second elastic member 60 has a tensile force greater than that of the first elastic member 50. Therefore, when the first rotational speed interval is generated, the centrifugal force generated is small, the first The nip end 32 is first abutted against the ring wall 11 by the friction plate 321 (as shown in FIG. 2A ), and in the second rotational speed interval, The first occlusal end 42 abuts against the ring wall 11 (as shown in FIG. 2B), and the first occlusal end 32 and the second occlusal end 42 abut each other. The ring wall 11 makes the disk body 20 The small and large frictional force is provided on the ring wall 11 to smoothly drive the cover 10.

Please refer to FIG. 2C , which is a schematic diagram of a stop stroke according to a first embodiment of the present invention. The disk body 20 has a stop stroke by the stop of the drive shaft 70 , and the stop stroke is due to the action. The centrifugal force of the first swaying block 30 and the second swaying block 40 is gradually reduced, and the first swaying block 30 and the second swaying block 40 are respectively received by the first elastic member 50 and the second The first occlusal end 32 and the second occlusal end 42 respectively leave the ring wall 11 without contacting the ring wall 11 until the first sway block 30 is in the first A second engaging end 32 abuts against the second rotating end 41, and the second squeezing block 40 stops swinging with the second engaging end 42 against the first rotating end 31 and is in a stop position.

Referring to FIG. 3, it is a schematic structural view of a second embodiment of the present invention. In this embodiment, the first turbulent block 30 and the second turbulent block 40 are respectively three and form a six. The first elastic member 50 and the second elastic member 60 have the same tensile force. It should be noted that, in this embodiment, the second swaying block 40 has a larger than the first a configuration weight of the turbulence block 30, so when the first turbulence block 30 and the second turbulence block 40 are subjected to the centrifugal force during the rotation stroke, in the first rotation speed interval, the weight is lighter. The first swaying block 30 first abuts the ring wall 11 with the first nip end 32. In the second speed interval, the second cocking block 40 with the heavier weight is the second nip end 42. Abutting against the ring wall 11 can also achieve the effect of providing the disk body 20 with a small and large frictional force on the ring wall 11, which smoothly drives the cover 10.

Referring to FIG. 4, it is a schematic structural view of a third embodiment of the present invention. In this embodiment, the first swaying block 30 and the second swaying block 40 are respectively two, and the first elastic The member 50 and the second elastic member 60 have the same tensile force, and the second swaying block 40 has the same configuration weight as the first swaying block 30. The embodiment is characterized in that the first rotating end 31 a first distance A from the center C, the second rotation end 41 is a second distance B from the center C, and the first distance A is greater than the second distance B, so when the first tilting block 30 and the When the second turbulence block 40 is subjected to the centrifugal force during the rotation stroke, The first engaging end 32 is closer to the ring wall 11 than the second engaging end 42 , so the required tension of the first elastic member 50 of the first engaging end 32 is lower than the second elastic force of the second engaging end 42 . The first occlusal end 32 will abut the ring wall 11 before the first nip end, and the second nip end 42 will abut the ring wall 11 in the second rotational speed interval. The disk body 20 is provided with a small and large frictional force on the ring wall 11 to smoothly drive the cover 10. The first bite end 32 and the second bite end 42 are added. When the ring wall 11 is placed on the ring wall 11, a centering point is formed in which the center C is symmetrically distributed, so that the frictional force is evenly distributed on the ring wall 11.

Finally, it should be added that the first elastic member 50 and the second elastic member 60 have different tensile forces, and the first swaying block 30 and the second swaying block 40 have different Configuring the weight, and the three techniques of the first swaying block 30 and the second swaying block 40 having different distances from the center C, so that the first swaying block 30 and the second swaying block 40 are different. The rotation speed interval sequentially engages the cover 10, so that the disk body 20 provides a small and large friction force on the cover 10 to smoothly rotate the cover 10, so the spirit of the present invention lies in the first The swaying block 30 and the second swaying block 40 can sequentially engage the cover 10 in different speed ranges, and can extend a third swaying block to achieve a multi-stage occlusion and gradually increase the friction force to smoothly drive the The function of the cover 10, which is equivalent to the structural changes in accordance with the spirit of the present invention, should still fall within the scope of protection of the present invention.

In summary, since the first occlusal end and the second occlusal end abut against the ring wall in different rotational speed intervals, the disk body provides a small and large friction on the rotating stroke. Acting on the cover to drive the cover to rotate, to avoid directly providing an excessive frictional force on the cover, so that the disk can smoothly mesh with the cover and drive, not only extending the use of the clutch Life expectancy enhances the stability of the vehicle. Therefore, the present invention is highly progressive and meets the requirements for applying for a patent for invention, and the application is filed according to law, and the prayer bureau will grant the patent as soon as possible.

The present invention has been described in detail above, but the above is only the present invention. A preferred embodiment of the invention is not intended to limit the scope of the invention. That is, the equivalent changes and modifications made by the scope of the present application should remain within the scope of the patent of the present invention.

10‧‧‧ Cover

11‧‧‧Circle

12‧‧‧ accommodating space

20‧‧‧ dish

21‧‧‧ openings

30‧‧‧First turbulent block

31‧‧‧First rotating end

32‧‧‧First bite end

321‧‧‧ friction plate

40‧‧‧Second turbulent block

41‧‧‧second rotating end

42‧‧‧Second bite end

421‧‧‧ Friction plate

50‧‧‧First elastic parts

51‧‧‧First tensile end

52‧‧‧First fixed end

60‧‧‧Second elastic parts

61‧‧‧Second tensile end

62‧‧‧Second fixed end

70‧‧‧ drive shaft

A‧‧‧first distance

B‧‧‧Second distance

C‧‧‧ Center

FIG. 1 is a perspective exploded view of a first embodiment of the present invention.

2A is a first schematic view of a rotational stroke of the first embodiment of the present invention.

Fig. 2B is a second schematic view of the rotation stroke of the first embodiment of the present invention.

2C is a schematic view of a stop stroke of the first embodiment of the present invention.

Fig. 3 is a schematic structural view of a second embodiment of the present invention.

Figure 4 is a schematic view showing the structure of a third embodiment of the present invention.

10‧‧‧ Cover

11‧‧‧Circle

12‧‧‧ accommodating space

20‧‧‧ dish

21‧‧‧ openings

30‧‧‧First turbulent block

31‧‧‧First rotating end

32‧‧‧First bite end

321‧‧‧ friction plate

40‧‧‧Second turbulent block

42‧‧‧Second bite end

421‧‧‧ Friction plate

70‧‧‧ drive shaft

Claims (11)

A clutch for non-synchronous engagement includes: a cover and a disc body, the cover having a ring wall, an accommodation space surrounded by the ring wall and provided for the disc body, the disc body having a drive a rotation driving stroke of the shaft, the rotation stroke includes a first rotation speed interval and a second rotation speed interval that is higher than the first rotation speed interval; and at least two first swaying blocks and at least two second swaying blocks are surrounded One of the disc bodies is disposed at the center of the disc body, and the first tilting block has a first rotating end pivoted to the disc body and a first engaging end remote from the first rotating end, the second The swaying block has a second rotating end pivotally connected to the disk body and a second occlusal end remote from the second rotating end; wherein the first nip end of the first cocking block and the second cocking block The second occlusal end drives the cover against the ring wall in the first rotational speed interval and the second rotational speed interval, respectively, and the first occlusal end is still in the second rotational speed interval. Rely on the ring wall. The non-synchronized clutch according to claim 1, wherein the disc body further has a stopping stroke that is stopped by the driving shaft, and the first swaying block and the second swaying block are at the end The moving strokes respectively leave the ring wall such that the first occlusal end and the second occlusal end do not contact the ring wall. The non-synchronized clutch according to claim 2, wherein in the stopping stroke, the first swaying block abuts the second rotating end by the first squeezing end, the second swaying The block is located at a stop position with the second nip end abutting the first rotating end. The non-synchronized occluded clutch of claim 3, wherein the first swaying block and the second squeezing block are each connected to a first elastic member and a second elastic member, the first elastic member and The second elastic member respectively pulls the first turbulent block and the second turbulent block in the stop position. The non-synchronized clutch according to claim 4, wherein the second elastic member has a tensile force greater than the first elastic member. A non-synchronized clutch as described in claim 1 wherein the The second turbulence block has a configured weight greater than the first sway block. The non-synchronized clutch according to claim 1, wherein the first rotating end is separated from the center by a first distance, the second rotating end is separated from the center by a second distance, and the first distance is greater than the The second distance. The non-synchronized clutch according to claim 1, wherein the first nip end and the second nip end are each attached with a friction plate, and the first nip end and the second nip end are at the rotation end. Each of the friction plates abuts against the ring wall. A non-synchronized clutch as claimed in claim 1 wherein the disk body includes an opening through which the drive shaft passes. The non-synchronized clutch according to claim 1, wherein the first rotational speed range is between 1800 rpm and 5,000 rpm. The non-synchronized clutch according to claim 1, wherein the second rotational speed range is between 7,500 rpm and 15,000 rpm.