TW201412601A - Multi-mode continuously variable transmission mechanism - Google Patents

Abstract

A multi-mode continuously variable transmission mechanism includes an input shaft, a driving pulley assembly, an elastic element, a sliding block, and a switch module. The driving pulley assembly includes a drive face, a movable drive face, a ramp plate, and a plurality of rollers. When the input shaft is rotated, the plural rollers, through centrifugal force, will push the movable drive face to move axially along the input shaft. The elastic element is set between the movable drive face and the ramp plate. A part of the sliding block is passed through the ramp plate and touched the elastic element. The switch module is connected to the sliding block to control the movement of the sliding block. And the sliding block would change the amount of the compression to the elastic element. Therefore, the present invention could have two or more modes of continuously variable transmission mechanism without using the computer hardware and software with higher cost and more complex setting.

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 a stepless shifting mode, a stepless shifting mechanism is incorporated in the vehicle.

1 is a cross-sectional view of a conventional stepless shifting mechanism. The stepless shifting mechanism 9 includes an input shaft 91, a drive plate set 92, a power output shaft 93, a drive plate set 94, and a transmission. Belt 95.

The drive belt 95 is surrounded by the drive disc set 92 and the drive disc set 94. The drive disc set 92 includes a drive disc 921, a slide drive disc 922, a stop disc 923, and a plurality of rollers 924, a drive disc The set 94 includes a drive plate 941, a slide drive plate 942, and a drive plate spring 943. The drive plate 941 is coaxially fixed to the output shaft 93, and the slide drive plate 942 is coaxially slidably disposed on the output shaft 93, and the additional input shaft 91 is coupled to a vehicle engine 96.

Therefore, the input shaft 91 can transmit the rotational power of the vehicle engine 96 to the output shaft 93 via the transmission belt 95 in a stepless shifting manner, and the rotational power of the output shaft 93 can drive the front or rear wheels (not shown) of the vehicle. And the rotation of the input shaft 91 can cause the plurality of rollers 924 to push the sliding drive disc 922 to axially slide along the input shaft 91 by its centrifugal force, and the drive disc spring 943 pushes the sliding drive disc 942 along with its elastic force. The output shaft 93 is axially slid.

However, the conventional mechanical V-belt stepless shifting structure mostly uses parameters such as the roller counterweight and the spring force of the drive disc spring to achieve the specific shift mode required, so that only a single set can be set. Shift mode. With the development of the electronic control system, the electronically controlled V-belt has a stepless shifting structure. The different shifting modes are directly set in the computer and controlled directly by the computer. However, such systems require complicated computer hardware and Software settings can achieve the required functions, and the cost is naturally much higher, which is not ideal.

The reason for the inventor is that, in the spirit of active invention and creation, a "multi-mode stepless shifting mechanism" that can solve the above problems is considered, and the present invention has been completed after several research experiments.

The multi-mode stepless shifting mechanism of the present invention comprises: an input shaft, a driving disc set, an elastic element, a slider, and a switching module. The driving disc set may include a driving disc, a sliding driving disc, a stopping disc, and a plurality of rollers. The driving disc and the stopping disc may be coaxially fixed on the input shaft, and the sliding driving disc may be located on the driving disc and Between the stop plates and coaxially sliding on the input shaft, a plurality of rollers can be disposed between the sliding drive plate and the stop plate. When the input shaft rotates, the plurality of rollers can be pushed by the centrifugal force thereof. The sliding drive disc slides axially along the input shaft.

The elastic member can be disposed between the sliding driving plate and the stopping plate; the sliding block can be coaxially pivoted on the input shaft, and one end portion of the sliding block passes through the stopping plate and abuts against the elastic member; the switching module can be Sliders are connected to control the slider The movement, in turn, changes the amount of preload of the slider to the resilient member, whereby a stepless shifting mechanism having two or more shifting modes can be formed.

The above-mentioned stopper plate can be provided with a plurality of holes, and a plurality of protrusions are arranged at one end of the slider corresponding to the plurality of holes, and each of the protrusions of the slider can pass through each corresponding hole to make the slide The block can slide axially along the input shaft and pass through the stop plate fixed on the input shaft to control the preload of the elastic element. In addition, each of the protrusions of the slider may have a groove so that the elastic member can be clamped in the groove to achieve a stable spring position and accurately apply the pressure to the required preload amount.

Furthermore, the switching module may include a motor, a gear set, and a screw connected in sequence to convert the rotational motion of the motor into an axial displacement to control the amount of movement required by the slider, further The elastic element disposed between the sliding drive disc and the stop disc generates a plurality of modes of preloading, so as to achieve multi-mode stepless shifting without the use of high-cost, complicated adjustment of computer hardware and software settings. To reduce costs. In addition, the switching module can also use mechanisms such as solenoid valves, lever sets, linear slides, etc. to drive the slider axially along the input shaft to provide the preload required for the elastic components.

The multi-mode stepless shifting mechanism of the present invention may further include a power output shaft, a transmission disk group, and a transmission belt. The transmission disk group may include a transmission disk, a sliding transmission disk, and a transmission disk spring. The transmission disk is coaxial. Fixed on the output shaft, the sliding drive disc is coaxially slid on the output shaft, and the drive disc spring can push the sliding drive disc to axially slide along the output shaft, and the drive belt surrounds the drive disc set. With the drive plate set.

Please refer to FIG. 2. FIG. 2 is a cross-sectional view showing a multi-mode stepless shifting mechanism according to a preferred embodiment of the present invention. The multi-mode stepless shifting mechanism of the present invention comprises: an input shaft 1, a driving disc group 2, an elastic member, a slider 3, a switching module 4, an output shaft 6, a transmission disc group 5, and a Drive belt 7. The driving disc group 2 includes a driving disc 21, a sliding driving disc 22, a stopping disc 25, and a plurality of rollers 23. The driving disc 21 and the stopping disc 25 are coaxially fixed on the input shaft 1, and the sliding driving disc 22 is located between the driving plate 21 and the stopping plate 25, and is coaxially slidably disposed on the input shaft 1, and a plurality of rollers 23 are disposed between the sliding driving plate 22 and the stopping plate 25, when the input shaft 1 rotates. At this time, the plurality of rollers 23 can be caused to push the sliding drive disk 22 to axially slide along the input shaft 1 by its centrifugal force.

In this embodiment, the elastic member is a spring 24 disposed between the sliding driving plate 22 and the stopping plate 25; the slider 3 is coaxially disposed on the input shaft 1 and the switching module 4 is coupled to the slider 3 Connected to control the movement of the slider 3, thereby changing the amount of preload of the slider 4 against the spring 24. When the input shaft 1 rotates, the plurality of rollers 23 can be urged to push the sliding drive disc 22 axially along the input shaft 1 by its centrifugal force to reach the shift mode. The change of the preload amount of the spring 24 is to provide a pre-pressure of the sliding drive disc 22, and when the low speed ride is required, the preload amount of the spring 24 can be increased, and the slide drive disc 22 can be operated at a small rotation speed. Sliding and starting the shifting. At this time, the engine's operating speed is low, and the fuel consumption and noise performance are naturally better. If it is necessary to perform high-speed riding, the preload amount of the spring 24 can be made small, and the sliding drive plate 22 will be slid and started to shift at a higher rotational speed, so that the acceleration of the vehicle can be better.

As shown in FIG. 2, the switching module 4 includes a motor 41, a gear set 42, and a screw 43 connected in sequence to convert the rotational motion of the motor 41 into an axial displacement to control the slider. 3 The amount of movement of the axial displacement along the input shaft 1 further produces a plurality of modes of preloading for the spring 24 disposed between the sliding drive plate 22 and the stop plate 25, so that the cost is not high and the adjustment is complicated. With the computer hardware and software settings, multi-mode stepless shifting can also be achieved to reduce costs.

The drive plate set 5 includes a drive plate 51, a slide drive plate 52, and a drive plate spring 53. The drive plate 51 is coaxially fixed to the output shaft 6, and the slide drive plate 52 is coaxially slidably disposed on the output shaft 6. The drive disc spring 53 is axially slid along the output shaft 6 by pushing the slide drive disc 52 with its elastic force, and the drive belt 7 surrounds the drive disc group 2 and the drive disc group 5.

Referring to FIG. 3, FIG. 3 is an exploded view of the slider, the stop plate, and the spring according to a preferred embodiment of the present invention. A six-hole 251 is formed in the stop plate 25, and one end of the slider 3 has six protrusions 31 corresponding to the six holes 251, and each of the protrusions 31 of the slider 3 passes through each corresponding hole. 251. And each of the protrusions 31 has a groove 32, so that the spring 24 is locked in the six grooves 32, that is, the six protrusions 31 of the slider 3 will pass through the stop plate 25 and abut against the spring 24 Therefore, when the slider 3 is axially displaced, the preload of the spring 24 can be changed without the stopper disk 25 being actuated, and the spring 24 can be stabilized by the spring 24 being locked in the six recess 32. Position and accurately apply pressure to achieve the desired amount of preload.

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.

1‧‧‧Intake shaft

2‧‧‧ drive panel

21‧‧‧ drive disk

22‧‧‧Sliding drive

23‧‧‧roller

24‧‧ ‧ spring

25‧‧‧stop

251‧‧‧ hole

3‧‧‧ Slider

31‧‧‧Bump

32‧‧‧ Groove

4‧‧‧Switching module

41‧‧‧Motor

42‧‧‧ Gear Set

43‧‧‧ screw

5‧‧‧Drive panel

51‧‧‧ drive disk

52‧‧‧Sliding drive plate

53‧‧‧Driven disk spring

6‧‧‧Output shaft

7‧‧‧Drive belt

9‧‧‧Stepless speed change mechanism

91‧‧‧Inlet shaft

92‧‧‧ drive panel

921‧‧‧ drive disk

922‧‧‧Sliding drive plate

923‧‧ ‧ stop plate

924‧‧ ‧roller

93‧‧‧Output shaft

94‧‧‧Drive disc set

941‧‧‧ drive disk

942‧‧‧Sliding drive plate

943‧‧‧Driven spring

95‧‧‧Drive belt

96‧‧‧Vehicle Engine

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

2 is a cross-sectional view of a multi-mode stepless shifting mechanism in accordance with a preferred embodiment of the present invention.

3 is an exploded view of a slider, a stop plate, and a spring in accordance with a preferred embodiment of the present invention.

1‧‧‧Intake shaft

2‧‧‧ drive panel

21‧‧‧ drive disk

22‧‧‧Sliding drive

23‧‧‧roller

24‧‧ ‧ spring

25‧‧‧stop

3‧‧‧ Slider

4‧‧‧Switching module

41‧‧‧Motor

42‧‧‧ Gear Set

43‧‧‧ screw

5‧‧‧Drive panel

51‧‧‧ drive disk

52‧‧‧Sliding drive plate

53‧‧‧Driven disk spring

6‧‧‧Output shaft

7‧‧‧Drive belt

Claims (6)

A multi-mode stepless shifting mechanism includes: an input shaft; a driving disc set including a driving disc, a sliding driving disc, a stopping disc, and a plurality of rollers, the driving disc is coaxial with the stopping disc Fixed on the input shaft, the sliding driving disc is located between the driving disc and the stopping disc, and is coaxially slidably disposed on the input shaft, and the plurality of rollers are disposed on the sliding driving disc and the blocking Between the discs, when the input shaft rotates, the plurality of rollers can be urged to push the sliding drive disc axially along the input shaft by its centrifugal force; an elastic component is disposed on the sliding drive disc and the Between the stopper plates; a slider coaxially disposed on the input shaft, one end portion of the slider passes through the stopper plate and abuts against the elastic member; and a switching module The sliders are coupled to control the movement of the slider, thereby changing the amount of preload of the slider to the elastic member. The multi-mode stepless speed change mechanism of claim 1, wherein the stop plate is provided with a plurality of holes, and one end of the slider corresponds to the plurality of protrusions at the plurality of holes, and the slider Each of the studs is threaded through a corresponding hole. The multi-mode stepless shifting mechanism of claim 2, wherein each of the protrusions has a groove, and the elastic element is engaged in the groove. The multi-mode stepless shifting mechanism of claim 1, wherein the switching module comprises a motor connected in sequence, a gear set, and a screw. The multi-mode stepless shifting mechanism of claim 1, wherein the switching module is a solenoid valve. The multi-mode stepless shifting mechanism according to claim 1, further comprising a power output shaft, a transmission disk group, and a transmission belt, the transmission disk group including a transmission disk, a sliding transmission disk, and a transmission a disc spring, the drive disc is coaxially fixed on the output shaft, the sliding drive disc is coaxially slidably disposed on the output shaft, and the drive disc spring is pushed by the elastic force to push the sliding drive disc along the output shaft In axial sliding, the drive belt surrounds the drive plate set and the drive plate set.