TWM573730U - Straddle-type continuously variable transmission vehicle - Google Patents

Abstract

The present invention relates to a straddle-type stepless transmission vehicle including a main frame, a transmission case, a switching module, an output wheel and a rocker arm. The gearbox system is fixed on the main frame, and has a stepless shifting mechanism therein, including an input shaft, an output shaft and a driving disc set. The driving disc set comprises a driving disc, a sliding driving disc and a stationary pressing plate. The plurality of driving elements and a movable pressing plate, when the input shaft rotates, can cause the plurality of driving elements to push the sliding driving plate to axially slide along the input shaft with its centrifugal force. The switching module is connected to the movable pressure plate, and the rocker arm is connected to the transmission body and the output wheel, and the power of the output shaft is output to the output wheel through a transmission member, so that the output wheel can provide the rotational kinetic energy output. Therefore, compared with the conventional multi-mode stepless shifting mechanism, the motor has the characteristics of miniaturization of the motor, less sensor, low failure rate, and the straddle-type stepless speed change vehicle can still be normal when the motor or the control system fails. travel.

Description

Straddle-type stepless speed change vehicle

This creation is about a straddle-type, stepless transmission, especially a straddle-type, stepless transmission with a fixed engine.

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

The traditional Sprinter engine and the transmission body will be suspended with the vehicle body, resulting in a large unsprung mass and excessively biased front and rear wheel weights to the rear wheels. The design trend of the large-speed Skoda developed in the past 20 years is to fix the engine and the transmission body to the frame, and connect the rear wheel through a rear rocker arm and the transmission chain to increase the rigidity of the frame and increase the stability of high-speed driving. . Among them, the V-belt shifting system used in the fixed engine is characterized by a short design of the front and rear Plywood distances.

However, the current fixed engine in the market is equipped with a V-belt stepless speed change mechanism. If you want to achieve multi-mode shifting characteristics, you need to have a motor to control the movement of the front Ply disk at all times, and you need to have a controller and position sense. The detector monitors the speed ratio of the shifting system at any time, and needs to output a larger motor to provide sufficient torque. Therefore, when the vehicle is added with the above components, the cost and the failure rate are increased, and when the motor or the control system is faulty, The vehicle is unable to drive.

Because of this, the creator is based on the spirit of active creation, thinking about a straddle-type stepless speed-changing vehicle that can solve the above problems. After several research experiments, the creation is completed.

The main purpose of this creation is to provide a straddle-type stepless speed change vehicle. With the configuration of the present invention, the conventional multi-mode stepless shifting mechanism can be combined with a fixed engine, in addition to increasing the rigidity of the frame and increasing the speed. In addition to the stability of driving, the moving characteristics of the driving disc group can be changed through the improved switching module, which has smaller motor, less sensor, lower failure rate, etc. than the conventional multi-mode stepless shifting mechanism. Characteristics, and when the motor or control system fails, the straddle-type stepless speed change vehicle can still run normally.

In order to achieve the above object, the straddle-type stepless speed change vehicle of the present invention comprises a main frame, a gearbox body, a switching module, an output wheel and a rocker arm. The gearbox system is fixed on the main frame and has a stepless shifting mechanism. The stepless shifting mechanism includes an input shaft, an output shaft and a driving disc set, and a belt is arranged on the input shaft and the output shaft. The driving disc set comprises a driving disc, a sliding driving disc, a non-moving pressing plate, a plurality of driving components and a movable pressing plate. The driving disc and the non-moving pressing plate are coaxially fixed on the input shaft, and the sliding driving disc is located on the driving disc and the non-moving pressing plate. And coaxially sliding on the input shaft, when the input shaft rotates, the plurality of driving elements can be pushed by the centrifugal force to push the sliding drive disc to slide axially along the input shaft; wherein: the plurality of driving elements are pivotally mounted on the stationary platen And the plurality of driving elements include at least one first driving element and at least one second driving element, wherein the at least one second driving element has a contact portion that can abut against the movable platen to limit the rotational movement of the partial plurality of driving elements.

In addition, the switching module is connected to the movable pressing plate for controlling the axial movement of the movable pressing plate. The rocker arm connects the gearbox body and the output wheel, and outputs the power of the output shaft to the output wheel through a transmission member, so that the output wheel can provide the rotational kinetic energy output.

The switching module can include a brake, a transmission mechanism, and a motion conversion mechanism. Wherein, the brake may be a motor for providing a driving force to switch the driving panel to different modes, such as an economy mode or an acceleration mode; the transmission mechanism may be a gear set for transmitting the driving force to the driving disk In the group; the motion conversion mechanism may be a screw mechanism for converting the rotational motion of the transmission mechanism into a linear motion. Thereby, the creation can control the axial movement of the movable platen through the switching module, and adjust the multi-mode stepless speed change mechanism to enter the economic mode or the acceleration mode to achieve different shifting effects.

In addition, viewed above the gearbox body, the brake can be disposed between the line position of the input shaft and the belt; in the lateral direction of the transmission body, the brake can be disposed outside the operating range of the belt, and It is located above the operating range of the belt; further, the axis of rotation of the brake can be parallel to the line connecting the input shaft and the output shaft. Thereby, the creation can set the brake at the above position, and adjust the arrangement relationship of the rotation axis of the brake to achieve the optimization effect during the operation and reduce the unnecessary kinetic energy loss.

In addition, in the lateral view of the transmission case, the partial transmission mechanism can overlap with the operating range of the belt, and viewed from above the transmission case, part of the transmission mechanism can also overlap with the actuation range of the belt. Thereby, by adjusting the arrangement relationship between the transmission mechanism and the belt, space waste can be effectively reduced to achieve the advantages of system miniaturization.

The above summary and the following detailed description are exemplary in order to further illustrate the scope of the patent application of the present invention. Other purposes and advantages of this creation will be explained in the following description and illustration.

Please refer to FIG. 1 , which is a side view of a straddle-type stepless transmission vehicle according to a preferred embodiment of the present invention. As shown in the figure, the straddle-type stepless speed change vehicle 1 of the present invention mainly comprises a main frame 2, a gearbox body 3 provided with a switching module 4, an output wheel 5 and a rocker arm 6. The engine and the transmission body 3 of the straddle-type stepless transmission vehicle 1 are locked to the main frame 2, and the output wheel 5 is connected through a rocker arm 6, and the power is output to the output through a transmission member 61. Round 5. When the tremor of the road surface is bounced back to the output wheel 5, the output wheel 5 and the suspension system will oscillate together and the engine will remain stable, thereby reducing the quality of the suspension system and improving the handling and stability of the vehicle. In the above case, the engine and the transmission body 3 will not oscillate with the output wheel 5, so it is called a stationary engine, which is used in the present embodiment.

Next, please refer to FIG. 2 to FIG. 4 , which are respectively a side view of the stepless shifting mechanism of the straddle-type stepless shifting vehicle, a top view of the stepless shifting mechanism, and a driving disc group. Exploded map. As shown in FIG. 2 and FIG. 3, the transmission case 3 has a stepless speed change mechanism 30. The stepless speed change mechanism 30 mainly includes an input shaft 31, an output shaft 32 and a drive plate set 33. In the embodiment, the input shaft 31 is an engine crankshaft, but not limited thereto, and may be a driving device such as an electric motor rotating shaft, and the input shaft 31 is marked with a center line position A, which is a single cylinder. The average position of the center line of each cylinder of the cylinder or the multi-cylinder engine of the engine; if the input shaft 31 is an electric motor rotating shaft, the center position of the input shaft refers to the center of gravity of the rotor. In addition, a belt 34 is sleeved on the input shaft 31 and the output shaft 32, and is finely adjusted by the driving plate group 33 to change the reduction ratio of the belt 34, thereby achieving the effect of the stepless speed change.

Referring to FIG. 3 and FIG. 4, the driving disk set 33 of the present invention includes a driving disk 331, a sliding driving plate 332, a stationary pressing plate 333, six driving elements 334, and a movable unit. Platen 335. The drive plate 331 and the stationary platen 333 are coaxially fixed to the input shaft 31. The slide drive plate 332 is disposed between the drive plate 331 and the stationary platen 333, and is coaxially slidably disposed on the input shaft 31.

In this embodiment, the six driving components 334 include three first driving components 3341 and three second driving components 3342, and each driving component 334 is pivotally mounted on the movable platen 333 for pivoting operation. . The second driving component 3342 has a contact portion 3340 that can abut against the movable platen 335, and the contact position and angle of the movable platen 335 and the contact portion 3340 can be adjusted according to design parameters, so that the function of the contact portion 3340 can be achieved. The pivoting action of the second driving element 3342 is restricted, and is not limited to the pattern of the contact portion 3340 in the present drawing.

In addition, the sliding driving disc 332 is pivotally provided with three driven components 3321 respectively corresponding to the six driving components 334. In the embodiment, the three driven components 3321 are three rollers, and the driving components are transmitted through the driving components. The sliding contact relationship of the 334 with the driven member 3321 can transfer the axial component force to the sliding drive plate 332 more smoothly, causing axial displacement. Furthermore, the movable pressing plate 335 of the embodiment further includes three protruding pins 3351. The non-moving pressing plate 333 further includes three opening holes 3331 corresponding to the protruding pins 3351, wherein each protruding pin 3351 corresponds to each. Each of the openings 3331 is extended, so that the movable platen 335 and the stationary platen 333 can rotate synchronously.

On the other hand, returning to FIGS. 2 and 3, the movable platen 335 is coupled to a switching module 4 to control the axial movement of the movable platen 335. The switching module 4 includes a brake 41, a transmission mechanism 42 and a motion conversion mechanism 43. In the embodiment, the brake 41 is a motor for providing a driving force to switch the driving disk group 33 to different The mode allows the shifting mechanism to start shifting at different engine speeds. Wherein, the embodiment also limits the installation position of the brake 41. As shown in FIG. 2, if viewed from the side of the transmission body 3, the brake 41 is disposed outside the operating range B, C of the belt 34, and Located above the operating range B, C of the belt 34; as shown in Fig. 3, if viewed above the transmission body 3, the brake 41 is disposed between the line position A of the input shaft 31 and the belt 34; As shown in FIG. 2, the rotation axis L of the brake 41 is parallel to the line L' of the input shaft 31 and the output shaft 32. Thereby, the present invention can set the brake 41 at the above position, and adjust the arrangement relationship of the rotation axis L of the brake 41 to achieve the optimization effect at the time of actuation and reduce unnecessary kinetic energy loss.

Further, in the present embodiment, the transmission mechanism 42 is a gear set for transmitting the driving force provided by the brake 41 to the driving disk group 33. Wherein, as shown in FIG. 2, if viewed from the side of the transmission body 3, the partial transmission mechanism 42 overlaps with the operating range B, C of the belt 34; as shown in FIG. Viewed above, the partial transmission 42 also overlaps the actuation range B, C of the belt 34. Thereby, by adjusting the arrangement relationship between the transmission mechanism 42 and the belt 34, space waste can be effectively reduced to achieve the advantages of system miniaturization. Furthermore, in the embodiment, the motion conversion mechanism 43 is a screw mechanism for converting the rotational motion of the transmission mechanism 42 into a linear motion, forcing the movable pressure plate 335 to generate axial displacement, and changing the movable pressure plate 335 and the stationary pressure plate. Between 333.

Next, please refer to FIG. 5A and FIG. 5B , which are schematic diagrams showing the initial position of the shifting mechanism of the stepless shifting mechanism in the economic mode and the shifting end position of the preferred embodiment. As shown in FIG. 5A, in the economic mode, the switching module 4 controls the movable pressing plate 335 to move away from the stationary pressing plate 333 in the axial direction. At this time, since the engine speed has not reached an economic critical reference, the axial component of the sliding driving plate 332 is not greater than The belt 34 is tensioned, and therefore, the slide drive disk 332 and the drive member 334 are still in the shift initial position, and the shift has not yet started. In contrast, as shown in FIG. 5B, also in the economic mode, at this time, since the engine speed has exceeded the above-mentioned economic critical reference, the axial component of the sliding drive disk 332 has been greater than the tension of the belt 34, and therefore, the driving element 334 will follow When the centrifugal force is increased, the slide driving disk 332 is continuously moved in the axial direction until the slide driving disk 332 and the driving element 334 reach the shift end position, and the shifting is completed.

During the above-mentioned shifting process, when the movable pressing plate 335 and the driving element 334 are properly spaced apart such that the contact portion 3340 of the second driving element 3342 is subjected to centrifugal force, the end of the contact portion 3340 can only slightly touch the movable pressing plate. 335, so that both the first drive element 3341 and the second drive element 3342 are free to pivotally move, the six drive elements 334 can provide an axial component to push the slide drive disk 332. In this way, in the economic mode, the shift can be started at a lower engine speed, effectively reducing the energy consumption.

Please refer to FIG. 6A and FIG. 6B , which are schematic diagrams showing the initial position of the shifting mechanism of the stepless shifting mechanism in the acceleration mode and the shifting end position respectively. As shown in FIG. 6A, in the acceleration mode, the switching module 4 controls the movable pressing plate 335 to approach the stationary platen 333 in the axial direction. At this time, since the engine speed has not reached an acceleration critical reference, the axial component of the sliding driving plate 332 is not greater than The belt 34 is tensioned, and therefore, the slide drive disk 332 and the drive member 334 are still in the shift initial position, and the shift has not yet started. In contrast, as shown in FIG. 6B, also in the acceleration mode, at this time, since the engine speed has exceeded the above-mentioned acceleration critical reference, the axial component of the sliding drive disk 332 has been greater than the tension of the belt 34, and therefore, the driving element 334 will follow When the centrifugal force is increased, the slide driving disk 332 is continuously moved in the axial direction until the slide driving disk 332 and the driving element 334 reach the shift end position, and the shifting is completed.

During the shifting process, since the movable platen 335 and the driving member 334 are not spaced apart from each other, the contact portion 3340 of the second driving member 3342 is biased against the movable platen 335 by the centrifugal force, so that only the first The drive member 3341 is free to pivotally move, while the second drive member 3342 is limited in that the movable platen 335 is unable to freely pivotally move, so only the first drive member 3341 can provide an axial component to push the slide drive disk 332. Thereby, in the acceleration mode, it is limited to start shifting at a higher engine speed, providing a higher shift speed and achieving faster acceleration.

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

1‧‧‧ straddle-type stepless speed change vehicle

2‧‧‧Main frame

3‧‧‧Transmission box

30‧‧‧Stepless speed change mechanism

31‧‧‧Inlet shaft

32‧‧‧ Output shaft

33‧‧‧ drive panel

331‧‧‧ drive disk

332‧‧‧Sliding drive plate

3321‧‧‧Driven components

333‧‧‧No moving plate

3331‧‧‧Opening

334‧‧‧Drive components

3340‧‧‧Contacts

3341‧‧‧First drive element

3342‧‧‧Second drive element

335‧‧‧ movable platen

3351‧‧‧ protruding pin

34‧‧‧Land

4‧‧‧Switching module

41‧‧‧ brake

42‧‧‧Transmission mechanism

43‧‧‧Sports conversion agency

5‧‧‧ Output wheel

6‧‧‧ rocker arm

61‧‧‧Transmission components

A‧‧‧ midline position

B, C‧‧‧Scope of action

L‧‧‧ axis

L’‧‧‧ connection

1 is a side elevational view of a straddle-type stepless shifting vehicle in accordance with a preferred embodiment of the present invention. 2 is a side elevational view of the stepless shifting mechanism of the straddle-type stepless shifting vehicle of the preferred embodiment of the present invention. 3 is a top plan view of the stepless shifting mechanism of the straddle-type stepless shifting vehicle of the preferred embodiment of the present invention. 4 is an exploded view of a drive disk set in accordance with a preferred embodiment of the present invention. Fig. 5A is a schematic view showing the initial position of the shifting mechanism of the preferred embodiment of the present invention in the economic mode. Fig. 5B is a schematic view showing the shift end position of the stepless shifting mechanism of the preferred embodiment of the present invention in the economic mode. Fig. 6A is a schematic view showing the shifting initial position of the stepless shifting mechanism of the preferred embodiment in the acceleration mode. Fig. 6B is a schematic view showing the shift end position of the stepless shifting mechanism of the preferred embodiment of the present invention in the acceleration mode.

Claims (9)

A straddle-type stepless speed change vehicle includes: a main frame; a gearbox body fixedly locked to the main frame, having a stepless shifting mechanism therein, the stepless shifting mechanism including an input shaft An output shaft and a driving disc set, wherein the input shaft and the output shaft are sleeved with a belt, the driving disc group comprises a driving disc, a sliding driving disc, a non-moving pressing plate, a plurality of driving components and a movable pressing plate, The driving plate and the fixed pressing plate are coaxially fixed on the input shaft. The sliding driving plate is located between the driving plate and the fixed pressing plate, and is coaxially slidably disposed on the input shaft. When the input shaft rotates, Causing the plurality of driving elements to push the sliding driving disc axially along the input shaft by its centrifugal force; wherein: the plurality of driving elements are pivotally disposed on the fixed pressing plate, and the plurality of driving elements comprise at least one first driving An element and at least one second driving element, wherein the at least one second driving element has a contact portion that can abut against the movable platen to restrict a part of the rotational movement of the plurality of driving elements; a change module, connected to the movable platen for controlling the axial movement of the movable platen; an output wheel for providing a rotational kinetic energy output; and a rocker arm connecting the gearbox body and the output wheel and transmitting through a transmission member The power of the output shaft is output to the output wheel. The straddle-type stepless speed change vehicle of claim 1, wherein the switching module comprises a brake, a transmission mechanism and a motion conversion mechanism. The straddle-type stepless speed change vehicle of claim 2, wherein the brake is a motor. For example, the straddle-type stepless speed change vehicle of claim 2, wherein the transmission mechanism is a gear set. The straddle-type stepless speed change vehicle of claim 2, wherein the motion conversion mechanism is a screw mechanism. The straddle-type stepless shifting vehicle of claim 2, wherein the brake is disposed between the line position of the input shaft and the belt. The straddle-type stepless shifting vehicle of claim 2, wherein the brake is disposed outside the operating range of the belt and is located in the operating range of the belt. Above. The straddle-type stepless speed change vehicle of claim 2, wherein the rotation axis of the brake is parallel to the line connecting the input shaft and the output shaft. The straddle-type stepless shifting vehicle of claim 2, wherein the partial transmission mechanism overlaps with the operating range of the belt and is above the transmission body. In view of this, the part of the transmission mechanism also overlaps with the operating range of the belt.