TWI574886B - Multi-mode continuously variable transmission mechanism - Google Patents

Description

Multi-mode stepless shifting mechanism

The present invention relates to a multi-mode stepless shifting mechanism, and more particularly to a multi-mode stepless shifting mechanism suitable for a locomotive.

For a general vehicle, if the vehicle is driven by the stepless shifting mode, a stepless shifting mechanism must be provided in the vehicle.

Please refer to FIG. 1, FIG. 2 and FIG. 3, which are respectively a cross-sectional view and a partial view of a conventional multi-mode stepless shifting mechanism of the patent application No. 103142830 of the Taiwanese application filed by Sanyang Industrial Co., Ltd. Enlarged view and exploded view of the four-bar linkage mechanism. The multi-mode stepless shifting mechanism is assembled on a locomotive, and includes: an input shaft 1, a driving disc group 2, a switching module 5, and two ball bearings 58, 59. The drive plate set 2 includes a drive plate 21, a slide drive plate 22, a stationary platen 23, a movable platen 25, a plurality of stop blocks 26, a plurality of links 27, and a plurality of drive elements 24.

The driving plate 21 and the stationary pressing plate 23 are coaxially fixed on the input shaft 1 , and the sliding driving plate 22 is located between the driving plate 21 and the fixed pressing plate 23 , and is coaxially slidably disposed on the input shaft 1 , and the plurality of driving elements 24 are disposed. Between the sliding drive plate 22 and the stationary platen 23. Among them, the driving element 24 is a ball. When the input shaft 1 rotates, the plurality of driving elements 24 can be caused to push the sliding drive disk 22 to axially slide along the input shaft 1 by its centrifugal force.

In addition, as shown in FIG. 1 and FIG. 3, the stationary platen 23 is provided with six openings 231, and the movable platen 25 has six protruding pins 251. The movable pressing plate 25 is disposed on the outer side of the stationary pressing plate 23, and is coaxially slidably disposed on the input shaft 1 Each of the protruding pins 251 of the movable platen 25 respectively extends into each of the openings 231 of the stationary platen 23, and a front end of each of the protruding pins 251 is connected to a blocking block 26, and the plurality of driving elements 24 are disposed on the sliding plate. Between the driving plate 22 and the plurality of blocking blocks 26, each blocking block 26 is connected to the fixed pressing plate 23 by a connecting rod 27, and the movable pressing plate 25 is connected with the switching module 5, so the switching module 5 can be controlled. The axial movement of the movable platen 25 changes the axial position of the movable platen 25.

The stationary platen 23 is composed of a stationary platen body 232 and three fixed platen ribs 233. In addition, the stationary platen 23 has six openings 231. Correspondingly, the movable platen 25 has six protruding pins 251, and the number of the connecting rod 27, the stopping block 26 and the driving element 24 are six. In addition, the four-link mechanism operates on the principle that the two ends of the blocking block 26 are respectively pivotally connected to the protruding pin 251 and the connecting rod 27 of the movable platen 25. In addition, the two ends of the connecting rod 27 are respectively pivotally connected to the stopping block 26 and the stationary pressing plate 23. Therefore, the blocking block 26, the connecting rod 27, the stationary pressing plate 23 and the movable pressing plate 25 are pivotally connected to each other to form a four-bar linkage mechanism, and only the movable pressing plate 25 can be axially slid by the control of the switching module 5, thereby The position and angle of contact between the stop block 26 and the drive element 24 are variable.

As shown in FIG. 1 , the switching module 5 includes: a driven gear 51 having an internal thread 511 , a driving gear 52 meshing with the driven gear 51 , and a motor 53 connected to the driving gear 52 , and A sleeve 54 having an outer thread 541, the sleeve 54 is coupled to the movable platen 25, the two of which are axially slidable together, and the sleeve 54 is screwed into the driven gear 51 by the external thread 541 Screw 511.

The operation principle of the switching module 5 is that the driving gear 52 is rotated by the motor 53 to drive the driven gear 51 to rotate, and the driven gear 51 is screwed to the sleeve by the internal thread 511. The screw 54 is external to the cylinder 54 and is fixed in the axial direction by the driving gear 52. When the driven gear 51 rotates, the inner sleeve 511 and the outer screw 541 act to drive the sleeve 54 to perform axial displacement. Therefore, the movable platen 25 can be displaced in the axial direction by the movement of the sleeve 54.

Further, a ball bearing 58 is sleeved on the sleeve portion 252 of the movable platen 25 and abuts against the inner annular surface of the sleeve 54 so that the sleeve 54 does not rotate together with the movable platen 25. Further, a ball bearing 59 is fitted over the input shaft 1 to abut against the inner ring surface of the driven gear 51, so that the driven gear 51 does not rotate together with the input shaft 1.

It should be noted that the protruding pin 251 on the movable platen 25 of the conventional four-bar linkage mechanism needs to have two functions at the same time, one of which is to push the blocking block 26 through the protruding pin 251 to change the sliding surface of the blocking block 26. The second angle is to drive the movable platen 25 to synchronize its rotational speed with the stationary platen 23. At the same time, the two functions are provided by the protruding pin 251, which may cause disadvantages in the configuration of the mechanism, so that the axial distance of the whole mechanism is long, thereby increasing the width of the engine, which is not ideal, and there is still room for improvement.

Because of this, the inventor of this invention, in the spirit of active invention and creation, considers a "multi-mode stepless shifting mechanism" that can solve the above problems, and has completed research and experiments to complete the present invention.

The main object of the present invention is to provide a multi-mode stepless shifting mechanism. The two functions of the conventional protruding pin are separately arranged by the pushing pin and the guide pin, and the sliding surface of the blocking block can be pushed by the pushing pin to change the sliding surface angle. The movable platen is driven by the guide pin to synchronize the rotation speed with the non-moving platen. Compared with the conventional technology of the four-bar linkage mechanism described in the above-mentioned Patent Application No. 103142830, the multi-mode stepless transmission mechanism, the present invention is promoted by the salesman. After being separately configured from the guide pin, the axial distance of the mode switching mechanism can be effectively shortened by 14~21%, thereby reducing the engine width. Degree, and can shorten the length of the input shaft and increase the durability of the multi-mode stepless shifting mechanism.

To achieve the above object, the multi-mode stepless shifting mechanism of the present invention comprises: an input shaft and a driving disc set, the driving disc set includes a driving disc, a sliding driving disc, a non-moving pressing plate and a plurality of driving components, a driving disc and The non-moving pressure plate is coaxially fixed on the input shaft, and the sliding drive plate is located between the driving plate and the non-moving plate, and is coaxially slidably disposed on the input shaft. When the input shaft rotates, the plurality of driving elements can be pushed by the centrifugal force. The sliding drive disc slides axially along the input shaft.

The main technical feature of the present invention is that the fixed pressure plate is provided with at least one opening and at least one guide pin sliding hole, and the driving disk group further comprises a movable pressing plate having at least one pushing pin and at least one guiding pin, which is disposed on the stationary pressing plate. The outer side of the movable platen is coaxially slidably disposed on the input shaft, and each of the push pins extends into each of the openings, and each of the guide pins extends into each of the guide pin sliding holes, and each of the push pins is connected to the front end. Blocking blocks to form a joint, the plurality of driving elements are disposed between the sliding driving disc and the plurality of blocking blocks, each blocking block is connected to the fixed pressing plate by a connecting rod, and the joint part is immersed in the movable pressing plate In the opening, the movable platen is connected with a switching module to control the axial movement of the movable platen, thereby changing the axial position of the movable platen.

Therefore, the present invention can push the sliding surface of the blocking block to change the sliding surface angle, and then drive the movable pressing plate through the guide pin to synchronize the rotation speed with the non-moving pressure plate, compared with the "Multi-mode stepless speed changing mechanism" of Taiwan No. 103142830 According to the four-bar linkage technology described in the patent application, the joint part can be immersed in the opening of the fixed platen by the promotion and the guide pin, and the axial distance of the mode switching mechanism can be effectively shortened. ~21%, which reduces the engine width and shortens the length of the input shaft and increases the durability of the multi-mode stepless shifting mechanism.

Each of the above-mentioned push pins can be locked together with the push pin by a fixing pin penetrating through the consistent hole of the block and the consistent hole of the push pin.

Each of the above-mentioned guide pins may be cylindrical or the like; and each of the guide pins and the movable platen may be a unitary structure, and the other guide pins and the movable platen may also be a two-piece structure, and then combined into a one-piece structure. .

Each of the above-mentioned guide pins can be sleeved with a rubber stopper, and the rubber stopper is sandwiched between the movable platen and the fixed platen to prevent the movable platen from colliding with the fixed platen when the axial direction is slipped.

The number of the at least one sales promotion may be three or a number of other sales, and the three sales are annularly disposed on the movable platen.

The number of the at least one guide pin may be three guide pins, or may be other number of guide pins, and the three guide pins are annularly disposed on the movable platen at equal angles.

The number of the at least one promotion may be the same as or different from the number of the at least one guide pin.

1‧‧‧Intake shaft

2‧‧‧ drive panel

21‧‧‧ drive disk

22‧‧‧Sliding drive

23‧‧‧No moving plate

231‧‧‧ openings

232‧‧‧No moving plate body

233‧‧‧No moving plate ribs

24‧‧‧Drive components

25‧‧‧ movable platen

251‧‧‧ protruding pin

252‧‧‧Setting Department

26‧‧‧ block

27‧‧‧ Connecting rod

5‧‧‧Switching module

51‧‧‧Driven gears

511‧‧‧ internal thread

52‧‧‧ drive gear

53‧‧‧Motor

54‧‧‧ sleeve

541‧‧‧ External thread

58,59‧‧‧ ball bearings

6‧‧‧Inlet shaft

7‧‧‧ drive panel

71‧‧‧ drive disk

72‧‧‧Sliding drive

73‧‧‧No moving plate

731‧‧‧Opening

732‧‧‧guide pin sliding hole

733‧‧‧鸠尾槽

734‧‧‧through holes

74‧‧‧ drive components

75‧‧‧ movable platen

751‧‧‧Marketing

7511‧‧‧through hole

752‧‧ ‧ sales guide

753‧‧‧fixed pin

754‧‧‧Rubber stopper

76‧‧‧ block

761‧‧‧Tongkong

762‧‧‧through holes

763‧‧‧ joint

77‧‧‧ linkage

771,772,781,782‧‧‧through holes

78‧‧‧ Connecting rod

791‧‧‧fixed pin

792‧‧‧fixed pin

L1‧‧‧ length

L2‧‧‧ length

1 is a cross-sectional view of a conventional multi-mode stepless shifting mechanism.

Figure 2 is a partial enlarged view of Figure 1.

3 is an exploded view of a four-bar linkage mechanism of a conventional multi-mode stepless shifting mechanism.

Figure 4 is an exploded view of a preferred embodiment of the four-bar linkage mechanism of the present invention.

Figure 5 is a perspective view of a preferred embodiment of the four-bar linkage mechanism of the present invention.

6A is a schematic view of the four-bar linkage mechanism of the present invention in which the driving element of the mode 1 does not push the sliding driving disk.

6B is a schematic view of the four-bar linkage mechanism of the present invention pushing the sliding drive disk in the mode of the driving element.

7A is a schematic view of the four-bar linkage mechanism of the present invention in which the driving element of the mode 2 is not pushed up.

7B is a schematic view of the four-bar linkage mechanism of the present invention pushing the sliding drive disc in the driving element of the second mode.

Figure 8 is a schematic illustration of the axial length of the present invention and a conventional multi-mode stepless shifting mechanism.

Please refer to FIG. 4 and FIG. 5 , which are respectively an exploded view and a perspective view of a preferred embodiment of the four-bar linkage mechanism of the present invention, and please refer to FIG. 1 and FIG. 2 together. The present embodiment is a four-bar linkage mechanism in the above-mentioned patent application of the "Multi-mode stepless shifting mechanism" of the Japanese Patent No. 103142830, which is the same as the protruding pin 251 on the movable platen 25 of the four-bar linkage mechanism of the above application. The driving 751 on the movable platen 75 is disposed separately from the guide pin 752 in this embodiment. The operation principle of the switching module of the present embodiment is substantially the same as that of the above application, and is indicated first.

The multi-mode stepless shifting mechanism of the embodiment is assembled on a locomotive and includes: an input shaft 6, a driving disc 7 and a switching module. The drive plate set 7 includes a drive plate 71, a slide drive plate 72, a stationary platen 73, a movable platen 75, a plurality of drive elements 74, a plurality of stop blocks 76, and a plurality of links 77,78. The driving plate 71 and the stationary pressing plate 73 are coaxially fixed on the input shaft 6 , and the sliding driving plate 72 is located between the driving plate 71 and the fixed pressing plate 73 , and is coaxially slidably disposed on the input shaft 6 when the input shaft 6 is When rotated, the plurality of drive elements 74 can be caused to push the slide drive plate 72 axially along the input force shaft 6 with its centrifugal force.

As shown in FIG. 4, the stationary platen 73 is provided with at least one opening 731 and at least one guide pin sliding hole 732. The movable pressing plate 75 has at least one pushing pin 751 and at least one guiding pin 752. The movable pressing plate 75 is disposed on the outer side of the stationary pressing plate 73. The movable platen 75 is coaxially slidably disposed on the input shaft 6. Each of the push pins 751 extends into each of the openings 731. Each of the guide pins 752 extends into each of the guide pin sliding holes 732, and each push pin 751 The front end is connected to a stop block 76 to form a joint 763 (shown in FIG. 6B). The plurality of drive elements 74 are disposed between the slide drive plate 72 and the plurality of stop blocks 76, and each stop block 76 is borrowed. The two links 77, 78 are connected to the stationary platen 73. The joint 763 is partially immersed in the opening 731 of the stationary platen 73. The movable platen 75 is connected to a switching module to control the axial direction of the movable platen 75. Moving, thereby changing the axial position of the movable platen 75. The switching module of the present embodiment is identical to the switching module 5 of the above-mentioned patent application No. 103142830, "Multi-mode stepless speed change mechanism", and the operation principle thereof will not be described herein.

In the present embodiment, at least one guide pin 752 is referred to as a three guide pin 752, and is equiangularly annularly disposed on the movable platen 75. In addition, at least one push pin 751 is referred to as a three push pin 751, and is equiangularly annularly disposed on the movable platen 75. Further, each push pin 751 is disposed adjacent to each of the guide pins 752. Further, the plurality of stop blocks 76 are referred to as three stop blocks 76, and the plurality of drive elements 74 are referred to as three drive elements 74. In addition, the fixed pressure plate 73 is also provided with three guide pin sliding holes 732 and three rubber stoppers 754 to correspond to the three guide pins 752 on the movable platen 75. In addition, in the embodiment, each of the guide pins 752 and the movable platen 75 are integrally formed, and each of the guide pins 752 is sleeved with a rubber stopper 754, and the rubber stopper 754 is sandwiched between the movable platen 75 and The movable platen 73 is used to prevent the movable platen 75 from colliding with the stationary platen 73 when it slides in the axial direction.

In addition, the operation principle of the four-bar linkage mechanism of the present embodiment is that the blocking block 76 has two ends, one end of which has a constant hole 761, and a fixed pin 753 is used to penetrate the through hole 7511 of the push pin 751 of the movable platen 75. The through hole 761 of the block 76; the other end of the block 76 There is a constant hole 762, and a fixing pin 791 is used to penetrate the through hole 771 of the connecting rod 77, the through hole 762 of the blocking block 76 and the through hole 781 of the connecting rod 78, and the three are connected together; The fixing pin 792 is provided with a through hole 772 of the connecting rod 77, a through hole 734 of the dovetail groove 733 of the stationary pressing plate 73, and a through hole 782 of the connecting rod 78, and the three are joined together. That is, the two ends of the stopper block 76 are respectively pivotally connected to the push pin 751 of the movable platen 75 and the dovetail groove 733 of the movable platen 73. Further, the guide pin 752 of the movable platen 75 is passed through the guide pin sliding hole 732 of the stationary platen 73. Therefore, the blocking block 76, the two connecting rods 77, 78, the fixed pressing plate 73 and the movable pressing plate 75 of the embodiment are pivotally connected to each other to form a four-bar linkage mechanism, and only the movable pressing plate 75 can be controlled by the switching module. The axial sliding allows the position and angle of contact of the stop block 76 with the drive element 74 to be variable.

Please refer to FIG. 6A and FIG. 6B , which are schematic diagrams of the four-bar linkage mechanism of the present invention, which are not pushed and pushed by the driving component of the mode 1. The action mode is as follows: the motor control sleeve of the switching module slips, and then the movable pressing plate 75 is displaced in the axial direction. When the movable pressing plate 75 slides to the position, the blocking block 76 is nearly vertically pushed to drive the driving component 74. At this time, it is indicated that the plurality of driving elements 74 can have a small centrifugal force, that is, the sliding driving disk 72 can be axially slid along the input shaft 6.

Please refer to FIG. 7A and FIG. 7B , which are schematic diagrams of the four-bar linkage mechanism of the present invention, which are not pushed and pushed by the driving component of the second mode. When the movable platen 75 is slid to this position, and the blocking block 76 is inclined to push the driving element 74, it means that the plurality of driving elements 74 need to use a large centrifugal force, so as to push the sliding driving plate 72 along the input shaft 1 Axial sliding. When the mode 2 is compared with the mode 1, it can be known that only the axial position of the movable platen 75 needs to be changed, and the multi-step shift mode can be achieved.

Please refer to FIG. 8 for a schematic diagram of the axial length of the present invention and the conventional multi-mode stepless shifting mechanism, and please refer to FIG. 3 and FIG. 4 together. The present invention converts the two functions of the movable platen 25 protruding pin 251 of the foregoing application into a separate arrangement between the sales promotion 751 and the guide pin 752 of the present invention. The push pin 751 pushes the sliding surface of the stopper block 76 to change the angle of the sliding surface, and then drives the movable platen 75 through the guide pin 752 to rotate the rotation speed thereof with the stationary platen 73. As shown in Fig. 8, it can be seen that the multi-mode stepless shifting mechanism of the above application has an axial length L1, and the multi-mode stepless shifting mechanism of the present invention has an axial length L2 and L2 is smaller than L1. Therefore, after the push pin 751 is separately disposed from the guide pin 752, the joint 763 can be partially immersed in the opening 731 of the stationary platen 73, which can effectively shorten the axial distance of the mode switching mechanism by 14 to 21%, thereby reducing the axial distance. The engine width can shorten the length of the input shaft 6 and increase the durability of the multi-mode stepless shifting mechanism.

The above-mentioned embodiments are merely examples for convenience of description, and the scope of the claims is intended to be limited to the above embodiments.

73‧‧‧No moving plate

731‧‧‧Opening

732‧‧‧guide pin sliding hole

733‧‧‧鸠尾槽

734‧‧‧through holes

75‧‧‧ movable platen

751‧‧‧Marketing

7511‧‧‧through hole

752‧‧ ‧ sales guide

753‧‧‧fixed pin

76‧‧‧ block

761‧‧‧Tongkong

762‧‧‧through holes

77‧‧‧ linkage

78‧‧‧ Connecting rod

771,772,781,782‧‧‧through holes

791‧‧‧fixed pin

792‧‧‧fixed pin

Claims (9)

A multi-mode stepless shifting mechanism includes: an input shaft and a driving disc set, the driving disc set includes a driving disc, a sliding driving disc, a stationary pressing plate and a plurality of driving components, the driving disc and the stationary pressing plate are coaxial The sliding driving disc is disposed between the driving disc and the non-moving pressing plate, and is coaxially slidably disposed on the input shaft; wherein the stationary pressing plate is provided with at least one opening and at least one The driving pin group further includes a movable pressing plate having at least one pushing pin and at least one guiding pin, which is disposed on an outer side of the fixed pressing plate, and the movable pressing plate is coaxially slidably disposed on the input shaft, each of The push-pull system extends into each of the openings, and each of the guide pins extends into the sliding hole of each of the guide pins, and a front stop is connected to a stop block to form a joint, each of the stops The stop block is connected to the fixed pressure plate by at least one connecting rod, and the joint system portion is immersed in the opening of the movable pressing plate, and the movable pressing plate is connected with a switching module to control the axial direction of the movable pressing plate mobile Further varying the axial position of the movable platen of; wherein the at least one three-based marketing promotion. The multi-mode stepless speed change mechanism of claim 1, wherein each of the push pins is threaded through a fixed hole of the stop block and a constant hole of the push pin, thereby locking together . The multi-mode stepless shifting mechanism of claim 1, wherein each of the guide pins is cylindrical. The multi-mode stepless shifting mechanism of claim 1, wherein the at least one guide pin and the movable platen are of a unitary structure. The multi-mode stepless shifting mechanism of claim 1, wherein the at least one guide pin is a three-way guide pin. The multi-mode stepless shifting mechanism of claim 5, wherein the three guide pins are annularly disposed on the movable platen at equal angles. The multi-mode stepless shifting mechanism of claim 1, wherein each of the guide pin sleeves is provided with a rubber stopper and is interposed between the movable pressure plate and the stationary pressure plate. The multi-mode stepless shifting mechanism according to claim 1, wherein the three-pushing mechanism is annularly disposed on the movable platen at an equal angle. The multi-mode stepless shifting mechanism of claim 1, wherein the at least one push pin is the same as the at least one guide pin.