Reciprocating CVT (continuously variable transmission) automobile transmission
Patent Information
- Application Number
- CN202411689216.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-01-28
AI Technical Summary
Traditional CT transmissions have small torque and are easy to slip due to friction transmission, which limits their application range, especially in large vehicles, which is difficult to meet the needs of large torque and non-slip.
By connecting the active wheels with the bolt with the bolt, and set the sliding on the active wheels, the bolts can slide inside and outside the slide to achieve the re -rotation of the active wheels.
A large output of torque is achieved, the phenomenon of slipping is avoided, the application scope is expanded, and it is suitable for large -scale transportation and other scenarios.
Smart Images
Figure CN119373844A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an automobile transmission, in particular to a reciprocating CVT transmission Background Art
[0002] The traditional CT transmission adopts friction transmission, which has the defects of small torque and easy slipping. The present invention fixes the driving wheel and chain of CVT with bolts and reciprocates. It has the advantages of large torque and no slipping, and the application range is also wider, which can be used in large transportation vehicles such as trucks and buses. Summary of the invention
[0003] The present invention relates to a reciprocating CVT automobile transmission, the contents of which are as follows: The present invention is characterized in that: the driving wheel 4 is connected to the chain 5 by a bolt B, and a slide groove H is provided on the driving wheel 4, and the bolt B can slide inside and outside the slide groove H. The driving wheel 4 reciprocates, and the upper dead point of the reciprocating rotation of the slide groove H is S1, and the lower dead point is S2. The steel wheel 4 reciprocates and drives the driven wheel gear 6 with the chain 5, and the gear 6 also reciprocates. BRIEF DESCRIPTION OF THE DRAWINGS
[0004] Figure 1 It is a schematic diagram of the overall structure of the present invention 4 Transmission drive wheel H The slideway on the driving wheel 5 Chain (steel chain) 6 Chain driven gear 1 Transmission input shaft 2 Cylindrical cam (a device that converts rotary motion into repetitive motion) 3 Rack 7 Universal joint 8 Gear 9 Gears driven by a chain 10 Electric motor for reverse 11 Clutch 12 Gears driven by a chain 14 Motor and screw transmission device (consisting of a motor, a nut, and a screw. The motor drives the nut to rotate forward or reverse, and the nut will rise or fall. Figure 3 Detailed explanation) 15 Motor and screw transmission device (consisting of a motor, a nut, and a screw. The motor drives the nut to rotate forward or reverse, and the nut will rise or fall. Figure 3 Detailed explanation)) 16 Transmission output shaft 17 Motor and screw transmission device (consisting of a motor, a nut, and a screw. The motor drives the screw to rotate forward or reverse, and the nut will rise or fall. Figure 3 Detailed explanation)
[0005] Figure 2 This is a schematic diagram of the driving wheel structure H The slideway on the driving wheel 4 B bolt S1 The top dead center of the rotation of the slideway H on the driving wheel 4 S2 The lower dead center of the rotation of the slideway H on the driving wheel 4 (the distance from S1 to S2 is half the circumference of the steel wheel 4)
[0006] Figure 3 The schematic diagram of the structure of the spiral transmission device 14, 15, 17 is shown in FIG. 31. Electric motor 32 screw 33 cylindrical nut DETAILED DESCRIPTION
[0007] The driving wheel 4 is connected to the chain 5 by bolts B. The driving wheel 4 has a slide groove H, and the bolt B can slide in and out of the slide groove H. The driving wheel 4 reciprocates, and the upper stop point of the reciprocating rotation of the slide groove H is S1, and the lower stop point is S2. The driving wheel 4 reciprocates and drives the gear 6 with the chain 5, and the gear 6 also reciprocates.
[0008] The input shaft 1 drives the cylindrical cam 2 to rotate, and the cylindrical cam 2 drives the rack 3 to reciprocate up and down. The rack 3 drives the gear coaxial with the steel wheel 4 to reciprocate. The steel wheel 4 also reciprocates accordingly, and the upper dead point of the rotation of the slideway H is S1, and the lower dead point is S2.
[0009] The driving wheel 4 rotates back and forth and drives the gear 6 to rotate back and forth with the chain 5. When the gear 6 rotates in reverse (rotating in the direction of the driving wheel 4 is reverse), the gear 8 drives the gear 13 to rotate forward (the gear transmission direction is opposite), and the gear 13 rotates forward to drive the output shaft 16 to rotate forward (the gear 13 is a one-way wheel, and the output shaft 16 is driven forward, and the output shaft 16 is not driven in reverse). When the gear 6 rotates forward: the gear 9 rotates forward to drive the gear 12 to rotate forward (the chain transmission direction is the same) (the gear 12 is a one-way wheel, and the output shaft 16 is driven forward, and the output shaft 16 is not driven in reverse). Whether the gear 6 rotates forward or reverse, the output shaft 16 rotates forward. The function of the universal joint 7 is that the gear 6 can still drive the gear 8 and the gear 9 when it moves forward and backward.
[0010] 1. Shifting method: Downshift: The spiral transmission device 15 (the principle of the spiral transmission device is that the motor 31 drives the screw 32 to rotate forward or reverse, and the nut 33 will rise or fall) pushes the left half of the driving wheel 4 to move to the left to reduce the actual transmission radius of the driving wheel 4. At the same time, the spiral transmission device 14 pushes the gear 6 backward to tighten the loose chain 5.
[0011] Upshift: The spiral transmission device 15 pushes the left half of the driving wheel 4 to move to the right to increase the actual transmission radius of the driving wheel 4, and the spiral transmission device 14 pushes the gear 6 forward to allow the steel wheel 4 to obtain sufficient chain winding.
[0012] 2 Reverse After the screw transmission device 17 disconnects the clutch 11 with the pull line, the motor 10 drives the output shaft 16 to rotate forward or reverse to complete the forward and backward movement when reversing, and the motor 10 is powered by the car battery. The clutch 11 also needs to be disconnected when waiting for signal lights or other temporary stops.
[0013] Gear Ratio The input shaft 1 rotates one circle, which means the cylindrical cam 2 rotates one circle. At the same time, the rack 3 reciprocates up and down once, and the driving wheel 4 reciprocates once (that is, the rotation of the slide H from S1 to S2 and then back to S1 is equivalent to the steel wheel 4 rotating one circle). When the transmission radius of the driving wheel 4 is the smallest, the transmission ratio of the driving wheel 4 to the gear 6 is 1:1. The transmission ratio of gears 8, 9 to gears 12, 13 is: 1:4. At this time, the transmission ratio of the input shaft 1 to the output shaft 16 is: 1:4, which is equivalent to the input shaft 1 rotating one circle and the output shaft 16 rotating 0.25 When the transmission radius of the driving wheel 4 is the largest, the transmission ratio between the driving wheel 4 and the gear 6 is 4:1. The transmission ratio between the gears 8, 9 and the gears 12, 13 is 1:4. At this time, the transmission ratio between the input shaft 1 and the output shaft 16 is 1:1, which is equivalent to one rotation of the input shaft 1 and one rotation of the output shaft 16.
Claims
1. The driving wheel 4 is connected to the chain 5 by bolts B. There is a slide groove H on the driving wheel 4, and the bolt B can slide in and out of the slide groove H. The steel wheel 4 reciprocates, and the upper stop point of the reciprocating rotation of the slide groove H is S1, and the lower stop point is S2. The driving wheel 4 drives the gear 6 with the chain 5 in a reciprocating motion, and the gear 6 also reciprocates. The input shaft 1 drives the cylindrical cam 2 to rotate, and the cylindrical cam 2 (a cylindrical cam is a device that converts rotary motion into reciprocating motion) drives the rack 3 to reciprocate, and the rack 3 drives the coaxial gear of the driving wheel 4 to reciprocate. The driving wheel 4 also reciprocates accordingly, and the upper stop point of the rotation of the slide groove H is S1, and the lower stop point is S2.
2. The driving wheel 4 rotates back and forth and drives the gear 6 to rotate back and forth with the chain 5. When the gear 6 rotates in reverse (rotating in the direction of the driving wheel 4 is reverse), the gear 8 drives the gear 13 to rotate forward (the gear transmission direction is opposite), and the gear 13 rotates forward to drive the output shaft 16 to rotate forward (the gear 13 is a one-way wheel, and the output shaft 16 is driven forward, and the output shaft 16 is not driven in reverse). When the gear 6 rotates forward: the gear 9 rotates forward to drive the gear 12 to rotate forward (the chain transmission direction is the same) (the gear 12 is a one-way wheel, and the output shaft 16 is driven forward, and the output shaft 16 is not driven in reverse). Whether the gear 6 rotates forward or reverse, the output shaft 16 rotates forward.