Double-drive device based on double stepless speed change

Abstract

The utility model relates to the field of infinitely variable transmissions, aims to solve the problem of infinitely variable transmission efficiency, and discloses a double-drive device based on double infinitely variable transmissions, which comprises an infinitely variable transmission and a two-stage variable transmission part arranged on the right side of the infinitely variable transmission and connected with the infinitely variable transmission. The two-stage speed change part is divided into an upper part and a lower part, the upper part is provided with a rotating disc in a matched mode, stop levers are evenly installed on the right end face of the rotating disc, and a driven shaft connected with a continuously variable transmission is sleeved with the rotating disc. The lower part is provided with a supporting plate and a sliding plate, and the supporting plate is in sliding fit with the sliding plate. The upper end and the lower end of the surface of the supporting plate are provided with a first limiting plate and a second limiting plate respectively. Installation blocks are installed at the opposite angles of the surface of the sliding plate, and a swing rod is arranged above the sliding plate. The stepless speed changer is matched with the two-stage speed change part to form a double-drive structure of double stepless speed change, so that the driving efficiency can be effectively improved, and the power loss is reduced.

Description

Technical Field

[0001] The utility model relates to the field of continuously variable transmissions, in particular to a dual-drive device based on dual continuously variable transmissions. Background Art

[0002] A continuously variable transmission (CVT) is a transmission system that can continuously achieve any gear ratio within the speed range. This allows for optimal matching of the drivetrain with the engine's operating conditions. Common CVTs include hydromechanical, metal belt, and variable ramp CVTs.

[0003] The continuously variable transmission mainly utilizes the switching principle between the large wheel and the small wheel. It first drives the large wheel by the small wheel. When the transmission is rotating and running normally, it switches to the large wheel driving the small wheel, which is more labor-saving. In the rapid development of continuously variable transmission, whether dual continuously variable transmission can be performed is a problem that needs to be solved. Under the premise of normal operation of the continuously variable transmission, how to further drive the speed change to achieve dual continuously variable transmission, so a dual-drive device based on dual continuously variable transmission was invented to solve the problem of dual continuously variable transmission. Utility Model Content

[0004] The purpose of the utility model is to solve the deficiencies of the prior art and to provide a dual-drive device based on dual continuously variable speeds.

[0005] The utility model is realized through the following technical solutions:

[0006] The transmission mechanism that this second shift is connected with the gear shift is that the transmission mechanism that this second shift is connected with the gear shift is that the transmission mechanism that this second shift is connected with the gear shift is that the transmission mechanism that this second shift is connected with the gear shift is that the transmission mechanism that this second shift is connected with the gear shift is that the transmission mechanism that this second shift is connected with the gear shift is that the transmission mechanism that this second shift is connected with the gear shift is that

[0007] As a preferred technical solution of the present invention, the blocking rod corresponds to the shift block, and the shift block has a helical tooth structure.

[0008] As a preferred technical solution of the present invention, the first limiting plate and the second limiting plate are both arranged on both sides of the rocker arm.

[0009] As a preferred technical solution of the present invention, the insert block and the rocker arm are in the same plane, the insert block is a cylindrical structure, and the insert block matches the socket.

[0010] As a preferred technical solution of the present invention, both the first cam structure and the second cam structure are detachable structures.

[0011] As a preferred technical solution of the present invention, a groove corresponding to the cover ring is provided on the driving shaft, so that the cover ring can rotate on the driving shaft without generating relative sliding displacement.

[0012] As a preferred technical solution of the present invention, the two-stage speed change part cooperates with the continuously variable transmission to form a dual continuously variable transmission.

[0013] As a preferred technical solution of the present invention, the diameter of the first cam structure is larger than that of the second cam structure.

[0014] As a preferred technical solution of the present invention, the baffles are evenly distributed on the circumference of the turntable.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The present invention further achieves speed change by adding a secondary speed change portion. Under the premise of continuously variable speed change, the swing speed change of the swing arm is utilized to drive the turntable, thereby further achieving speed change. On the basis of continuously variable speed change, dual continuously variable speed change is achieved. When power is output, power is increased, and the driving force of the continuously variable speed change itself is utilized to drive the secondary speed change portion to change speed again, which has the function of increasing efficiency. The first and second limit plates are provided to prevent the swing arm from swinging left and right. The insert block is inserted into the socket to form a fulcrum, which can control the swing speed of the swing arm. As the transmission operates, the swing speed of the swing arm is gradually increased. The coil spring plays a connecting role. The present invention forms a dual-drive structure with dual continuously variable speed change by combining the continuously variable transmission with the secondary speed change portion, which can effectively increase driving efficiency and reduce power loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Fig. 1 It is a structural diagram of the present utility model.

[0018] Fig. 2 It is a structural diagram of the pendulum rod of the utility model.

[0019] Fig. 3 This is a structural diagram of the first cam structure of the present utility model.

[0020] In the figure: 1, continuously variable transmission, 2, turntable, 3, gear lever, 4, driven shaft, 5, housing, 6, rocker arm, 7, shift block, 8, first limit plate, 9, support plate, 10, slide plate, 11, mounting block, 12, insert block, 13, first cam structure, 14, driving shaft, 15, second limit plate, 16, coil spring, 17, second cam structure, 18, cover ring, 19, connecting frame, 20, socket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figs. 1-3 , the utility model provides a technical solution:

[0023] A dual-drive device based on dual continuously variable transmission includes a continuously variable transmission 1 and a secondary transmission part. The secondary transmission part is arranged on the right side of the continuously variable transmission 1 and is connected to the continuously variable transmission 1. The secondary transmission part is divided into an upper and lower part. The upper part is equipped with a turntable 2. The right end surface of the turntable 2 is evenly equipped with a gear lever 3. The inside of the turntable 2 is equipped with a driven shaft 4 connected to the continuously variable transmission 1. The lower part is provided with a support plate 9 and a slide plate 10. The support plate 9 and the slide plate 10 are slidably matched. The upper and lower ends of the support plate 9 are respectively equipped with a first limit plate 8 and a second limit plate 15. The surface of the slide plate 10 is diagonally opposite. A mounting block 11 is installed, a rocker arm 6 is provided above the skateboard 10, an insert block 12 is installed on the side of the mounting block 11 close to the rocker arm 6, a socket 20 corresponding to the insert block 12 is provided on the side of the rocker arm 6, a coil spring 16 is connected between the rocker arm 6 and the support plate 9, a shift block 7 is fixedly installed on the top of the back side of the rocker arm 6, a connecting frame 19 is fixedly installed on the left side of the skateboard 10, a cover ring 18 is fixedly installed on the lower end of the connecting frame 19, a driving shaft 14 connected to the continuously variable transmission 1 is sleeved in the cover ring 18, and a second cam structure 17 and a first cam structure 13 are respectively assembled on the surface of the driving shaft 14 from left to right.

[0024] The blocking rod 3 corresponds to the shift block 7, and the shift block 7 is a helical tooth structure.

[0025] The first limiting plate 8 and the second limiting plate 15 are both arranged on both sides of the rocker 6 .

[0026] The insert block 12 and the rocker rod 6 are located in the same plane. The insert block 12 is a cylindrical structure and matches with the socket 20 .

[0027] The first cam structure 13 and the second cam structure 17 are both detachable structures.

[0028] The driving shaft 14 is provided with a groove corresponding to the cover ring 18 , so that the cover ring 18 can rotate on the driving shaft 14 without causing relative sliding displacement.

[0029] The two-stage speed change part cooperates with the continuously variable transmission 1 to form a dual continuously variable transmission.

[0030] The diameter of the first cam structure 13 is larger than that of the second cam structure 17 .

[0031] The blocking rods 3 are evenly distributed on the circumference of the turntable 2 .

[0032] Working principle: First, the continuously variable transmission 1 works. According to needs, the appropriate cam structure is selected in advance, and only one of the cam structures can be installed. First, the driving shaft 14 of the continuously variable transmission 1 rotates. While the continuously variable transmission 1 changes speed, it drives the first cam structure 13 or the second cam structure 17 to rotate. At this time, the insert block 12 on the left mounting block 11 will be inserted into the socket 20 on the rocker 6. The mechanical arm of the cam structure pressing on the rocker 6 is longer, and the rocker 6 swings slowly at the beginning. As the continuously variable transmission 1 operates, the small wheel drives the large wheel and then the large wheel drives the small wheel, which will drive the cover ring 18 to the left and the slide plate 10 to the left. This will cause the left insert block 12 to disengage from the rocker 6 and insert the right insert block 12 into the socket of the rocker 6, changing the fulcrum position of the rocker 6 and shortening the mechanical arm, thereby accelerating the swing of the rocker 6. While the rocker 6 swings, the shift block 7 will be used to shift the gear lever 3, thereby driving the turntable 2 to rotate, realizing dual drive of the dual continuously variable transmission and improving power output.

[0033] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement of the above embodiments made according to the technical essence of the present invention, within the spirit and principles of the present invention, without departing from the content of the technical solution of the present invention, shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A dual-drive device based on dual continuously variable transmission, comprising a continuously variable transmission (1) and a two-stage transmission part, characterized in that: The secondary speed change part is arranged on the right side of the continuously variable transmission (1), and the secondary speed change part is connected to the continuously variable transmission (1). The secondary speed change part is divided into an upper and lower part. The upper part is equipped with a turntable (2). The right end surface of the turntable (2) is evenly equipped with a gear lever (3). The inside of the turntable (2) is equipped with a driven shaft (4) connected to the continuously variable transmission (1). The lower part is provided with a supporting plate (9) and a slide plate (10). The supporting plate (9) and the slide plate (10) are slidably matched. The upper and lower ends of the surface of the supporting plate (9) are respectively equipped with a first limit plate (8) and a second limit plate (15). The surface of the slide plate (10) is diagonally equipped with a mounting block (11). A swing rod is provided above the slide plate (10). (6), an insert block (12) is installed on one side of the mounting block (11) close to the rocker (6), a socket (20) corresponding to the insert block (12) is opened on the side of the rocker (6), a coil spring (16) is connected between the rocker (6) and the support plate (9), a shift block (7) is fixedly installed on the top of the back of the rocker (6), a connecting frame (19) is fixedly installed on the left side of the slide (10), a cover ring (18) is fixedly installed on the lower end of the connecting frame (19), a driving shaft (14) connected to the continuously variable transmission (1) is set in the cover ring (18), and the surface of the driving shaft (14) is respectively equipped with a second cam structure (17) and a first cam structure (13) from left to right.

2. The dual-drive device based on dual continuously variable transmission according to claim 1, characterized in that: The blocking rod (3) corresponds to the shifting block (7), and the shifting block (7) is a helical tooth structure.

3. The dual-drive device based on dual continuously variable transmission according to claim 1, characterized in that: The first limiting plate (8) and the second limiting plate (15) are both arranged on both sides of the rocker (6).

4. The dual-drive device based on dual continuously variable transmission according to claim 1, characterized in that: The insert block (12) and the rocker (6) are located in the same plane. The insert block (12) is a cylindrical structure and is matched with the socket (20).

5. The dual-drive device based on dual continuously variable transmission according to claim 1, characterized in that: The first cam structure (13) and the second cam structure (17) are both detachable structures.

6. The dual-drive device based on dual continuously variable transmission according to claim 1, characterized in that: A groove corresponding to the cover ring (18) is provided on the driving shaft (14), so that the cover ring (18) can rotate on the driving shaft (14) without generating relative sliding displacement.

7. The dual-drive device based on dual continuously variable transmission according to claim 1, characterized in that: The two-stage speed change part cooperates with the continuously variable transmission (1) to form a dual continuously variable transmission.

8. The dual-drive device based on dual continuously variable transmission according to claim 1, characterized in that: The diameter of the first cam structure (13) is larger than that of the second cam structure (17).

9. The dual-drive device based on dual continuously variable transmission according to claim 1, characterized in that: The blocking rods (3) are evenly distributed on the circumference of the rotating disk (2).

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