CN213088665U

CN213088665U - Stepless speed variator

Info

Publication number: CN213088665U
Application number: CN202020433836.1U
Authority: CN
Inventors: 曾广西
Original assignee: Guangzhou Haitec Transmission Equipment Co ltd
Current assignee: Guangdong Furong Transmission Technology Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2021-04-30
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses a stepless speed changer, which comprises an installation box body, a first sleeve, an input shaft, a supporting block, a second sleeve, a working unit, a manual speed regulation unit and an automatic regulation unit, wherein the installation box body is shaped like a cuboid, the right end of a rear side plate of the installation box body is extended by a certain distance, the input shaft is rotatably connected with the middle position of the left side plate of the installation box body through the first sleeve, the supporting block is fixedly connected with the upper surface of the middle position of the lower plate of the installation box body, the upper end of the supporting block is fixedly connected with the second sleeve, the right end of the input shaft is rotatably connected with the second sleeve, the middle position of the right side plate of the installation box body is connected with the manual speed regulation unit, a mounting groove is arranged at the rear part of the middle position of the right side plate of the installation box body, the stepless speed, the manufacturing process is relatively simple, the maintenance difficulty is low, and the use cost is reduced.

Description

Stepless speed variator

Technical Field

The utility model relates to a mechanical transmission technical field specifically is a continuously variable transmission.

Background

At present, most of the stepless transmissions adopt friction transmission, and have poor impact resistance, high slip rate, and the phenomena of pulse output and discontinuous power flow; the transmission power needs a larger pressing force, so that larger power loss is caused, the load of each bearing is increased, and the bearing is easy to damage; the effective contact surface for transmitting power is small, theoretically, the effective contact surface is in line contact or point contact, the local stress is large, the working surface is easy to scratch or glue, the transmitted power is limited, the service life is short, and the application range is limited. Meanwhile, the operation is complex in a speed changing mode, and in the prior art, the stepless speed changer has a single speed regulating mode, high precision requirements on parts, complex manufacturing process, high maintenance difficulty and high use cost.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a continuously variable transmission, the speed governing mode is many, and is low to the spare part required precision of equipment, and manufacturing process technology is simple relatively, and the maintenance degree of difficulty is low, and use cost reduces, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a stepless speed changer, includes installation box, first sleeve, input shaft, supporting shoe, second sleeve, work unit, manual speed governing unit and automatically regulated unit, the right-hand member of installation box posterior lateral plate extends a section distance, the input shaft rotates through first sleeve and connects the intermediate position at installation box left side board, supporting shoe fixed connection is at the upper surface of installation box hypoplastron intermediate position, the upper end fixedly connected with second sleeve of supporting shoe, the right-hand member of input shaft rotates with the second sleeve and connects together, the intermediate position of installation box right side board is connected with manual speed governing unit, the mounting groove has been seted up to installation box right side board intermediate position's rear, the mounting groove passes the surface of installation box posterior lateral plate, and fixedly connected with automatically regulated unit in the mounting groove, work unit contains cone pulley, manual speed governing unit and automatically regulated unit, The output shaft is rotatably connected to the surface of the middle position of the rear side of the mounting box body through the fixed bearing, the friction wheel is movably clamped at the end part of the output shaft and can move for a certain distance along the axial direction of the output shaft, the friction wheel is in contact connection with the conical wheel, the fixed ring is fixedly connected to the surface of the end part of the output shaft, and the pressure spring is movably sleeved on the surface of the output shaft in the mounting box body; the cone pulley in the working unit is in contact with the friction wheel, the friction wheel moves along the axial direction of the output shaft under the action of the pressure spring and is in firm contact connection with the cone pulley, stepless adjustment of the speed ratio is achieved, the cone-shaped gear stepless speed regulation device further comprises a control switch group, the control switch group is fixedly connected to the upper surface of one side of the installation box body, and the control switch group is electrically connected with an external power supply.

Further, manual speed governing unit contains draw-in groove, installation sleeve, regulation section of thick bamboo, hand wheel and driven tooth, the draw-in groove is that the annular is seted up on the surface of input shaft right-hand member, installation sleeve fixed connection is in the intermediate position of installation box right side board, adjust a threaded connection in the installation sleeve, and should adjust a left end and a draw-in groove joint together, hand wheel fixed connection is at the right-hand member of adjusting a section of thick bamboo, driven tooth fixed connection is at the surface of adjusting a section of thick bamboo right-hand member barrel. The hand wheel at the end part of the adjusting cylinder of the manual speed adjusting unit is rotated by hand, so that the input shaft can be axially adjusted and stabilized at a certain position, and good transmission is realized.

Further, the automatically regulated unit contains electric telescopic handle, sliding seat, motor, drive tooth and mounting panel, mounting panel fixed connection is on the surface of installation box backplate opening part, electric telescopic handle's stiff end fixed connection is on the surface of mounting panel, electric telescopic handle's flexible end fixedly connected with sliding seat, fixed surface is connected with the motor on the sliding seat, the tip fixedly connected with drive tooth of motor output shaft, the drive tooth is connected with driven tooth meshing at the during operation, motor and electric telescopic handle electricity connection control switch group are right respectively. When the electric telescopic rod circuit in the automatic adjusting unit is switched on, the motor on the end sliding seat can move forwards or backwards, and when the motor stretches out, the driving teeth and the driven teeth are meshed to realize automatic rotation, so that the function of automatically adjusting the output speed is met.

Furthermore, the power transmission device also comprises spline grooves which are arranged on the outer surface of one end of the output shaft, which extends out of the outer part of the mounting box body, in an annular array. The spline groove is arranged, so that the output shaft can have a thinner diameter, and the reduction of the volume of the speed changer is facilitated.

Further, still include the keyway, the keyway is seted up on the surface of input shaft left end. The key slot is arranged according to the longest distance according to calculation, and the requirement of the input shaft during moving can be met.

Furthermore, the hand wheel device also comprises a crank, wherein a rubber handle is arranged at the end part of the crank, and the crank is fixedly connected to the surface of the hand wheel. The switching speed can be adjusted more conveniently and manually through the crank.

Further, the thickness of the driving tooth is larger than the axial moving distance of the input shaft. The driving teeth are arranged in a transverse thick mode, meshing can be still achieved in the left-right moving process of the driven teeth, and transmission requirements are met.

Compared with the prior art, the beneficial effects of the utility model are that: the stepless speed changer has the following advantages:

1. the stepless speed changer adopts the mode that the conical wheel is contacted with the friction wheel to transfer energy, changes the linear velocity ratio between the conical wheel and the friction wheel through the movement of the input shaft, realizes the stepless speed change function, and is relatively simple and convenient to manufacture.

2. And moreover, the independent control unit capable of manually and automatically adjusting the speed ratio is arranged, the operation process is more flexible and convenient, the requirement on the machining precision of each part is reduced, the manufacturing cost is reduced, and the market competitiveness is improved.

3. This stepless speed change machine, the equipment mode is comparatively reasonable, has reduced the probability that the trouble takes place, and daily maintenance is more simple and convenient, has reduced use cost, is more suitable to enterprise and minimill, is accepted by people more easily.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the upper structure of the present invention;

fig. 3 is a schematic diagram of the rear side structure of the present invention.

In the figure: the device comprises a mounting box body 1, a first sleeve 2, an input shaft 3, a supporting block 4, a second sleeve 5, a working unit 6, a conical wheel 61, an output shaft 62, a friction wheel 63, a fixed bearing 64, a fixed ring 65, a pressure spring 66, a manual speed regulating unit 7, a clamping groove 71, a mounting sleeve 72, an adjusting cylinder 73, a hand wheel 74, a driven tooth 75, an automatic adjusting unit 8, an electric telescopic rod 81, a sliding seat 82, a motor 83, a driving tooth 84, a mounting plate 85, a spline groove 9, a key groove 10, a crank 11 and a control switch group 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions:

the first embodiment is as follows: a stepless speed changer comprises an installation box body 1, a first sleeve 2, an input shaft 3, a supporting block 4, a second sleeve 5, a working unit 6, a manual speed regulation unit 7 and an automatic regulation unit 8, wherein the installation box body 1 is cuboid in shape, the right end of a rear side plate of the installation box body 1 is extended for a certain distance, the input shaft 3 is rotatably connected with the middle position of the left side plate of the installation box body 1 through the first sleeve 2, the supporting block 4 is fixedly connected with the upper surface of the middle position of the lower plate of the installation box body 1, the upper end of the supporting block 4 is fixedly connected with the second sleeve 5, the right end of the input shaft 3 is rotatably connected with the second sleeve 5, the middle position of the right side plate of the installation box body 1 is connected with the manual speed regulation unit 7, a mounting groove is formed in the rear of the middle position of the right side plate of the installation box body 1, the working unit 6 comprises a conical wheel 61, an output shaft 62, a friction wheel 63, a fixed bearing 64, a fixed ring 65 and a pressure spring 66, wherein the conical wheel 61 is fixedly connected to the surface of the middle position of the input shaft 3, the output shaft 62 is rotatably connected to the surface of the middle position of the rear side of the mounting box body 1 through the fixed bearing 64, the friction wheel 63 is movably clamped at the end part of the output shaft 62, the friction wheel 63 can axially move for a certain distance along the output shaft 62, the friction wheel 63 is in contact connection with the conical wheel 61, the fixed ring 65 is fixedly connected to the surface of the end part of the output shaft 62, and the pressure spring 66 is movably sleeved on the surface of the output shaft; the cone pulley 61 in the working unit 6 is in contact with the friction pulley 63, the friction pulley 63 axially moves along the output shaft 62 under the action of the pressure spring 66 to form firm contact connection with the cone pulley 61, stepless adjustment of the speed ratio is achieved, the stepless speed ratio adjusting device further comprises a control switch group 12, the control switch group 12 is fixedly connected to the upper surface of one side of the installation box body 1, and the control switch group 12 is electrically connected with an external power supply.

The manual speed regulating unit 7 comprises a clamping groove 71, an installation sleeve 72, a regulating cylinder 73, a hand wheel 74 and driven teeth 75, wherein the clamping groove 71 is annularly formed in the surface of the right end of the input shaft 3, the installation sleeve 72 is fixedly connected to the middle position of the right side plate of the installation box body 1, the regulating cylinder 73 is in threaded connection with the installation sleeve 72, the left end of the regulating cylinder 73 is connected with the clamping groove 71 in a clamped mode, the hand wheel 74 is fixedly connected to the right end of the regulating cylinder 73, and the driven teeth 75 are fixedly connected to the outer surface of a cylinder body at the right end of the regulating cylinder. The hand wheel 74 at the end of the adjusting cylinder 73 of the manual speed adjusting unit 7 is rotated by hand, so that the input shaft 3 can be adjusted in the axial direction and stabilized at a certain position, and good transmission is realized.

Example two:

the difference between this embodiment and the first embodiment is:

in this embodiment, the automatic adjusting unit 8 comprises an electric telescopic rod 81, a sliding seat 82, a motor 83, a driving tooth 84 and a mounting plate 85, the mounting plate 85 is fixedly connected to the surface of the opening of the rear plate of the mounting box 1, the fixed end of the electric telescopic rod 81 is fixedly connected to the surface of the mounting plate 85, the sliding seat 82 is fixedly connected to the telescopic end of the electric telescopic rod 81, the motor 83 is fixedly connected to the upper surface of the sliding seat 82, the driving tooth 84 is fixedly connected to the end of the output shaft of the motor 83, the driving tooth 84 is engaged with the driven tooth 75 during operation, the motor 83 and the electric telescopic rod 81 are respectively electrically connected to the control switch group 12, when the electric telescopic rod 81 in the automatic adjusting unit 8 is electrically connected, the motor 83 on the end sliding seat 82 can be moved forward or backward, when the driving tooth 84, the function of automatically adjusting the output speed is satisfied.

Still include spline groove 9, spline groove 9 is the annular array and sets up on output shaft 62 stretches out the surface of the outside one end of installation box 1, and the setting up of spline groove 9 for output shaft 62 can possess thinner diameter, is favorable to reducing of variable speed motor volume.

Still include keyway 10, keyway 10 is seted up on the surface of input shaft 3 left end, and the length of keyway 10 needs to satisfy input shaft 3 and removes needs, and keyway 10 is seted up according to the longest distance according to the calculation, demand when can satisfying input shaft 3 and remove.

Example three:

the difference between this embodiment and the first embodiment is:

in this embodiment, the hand wheel speed changer further comprises a crank 11, a rubber handle is arranged at an end of the crank 11, the crank 11 is fixedly connected to the surface of the hand wheel 74, and the speed changer can be adjusted manually more conveniently through the crank 11.

The thickness of the drive teeth 84 is greater than the distance that the input shaft 3 moves axially. The driving teeth 84 are transversely arranged in a thicker mode, meshing can still be achieved in the left-right moving process of the driven teeth 75, and the transmission requirement is met.

When in use:

the conical wheel 61 in the working unit 6 is in contact with the friction wheel 63, and the friction wheel 63 moves along the axial direction of the output shaft 62 under the action of the pressure spring 66 to form firm contact connection with the conical wheel 61, so that stepless adjustment of the speed ratio is realized. The hand wheel 74 at the end of the adjusting cylinder 73 of the manual speed adjusting unit 7 is rotated by hand, so that the input shaft 3 can be adjusted in the axial direction and stabilized at a certain position, and good transmission is realized. When the electric telescopic rod 81 in the automatic adjusting unit 8 is switched on, the motor 83 on the end sliding seat 82 can move forwards or backwards, and when the motor extends out, the driving tooth 84 and the driven tooth 75 are meshed to realize automatic rotation, so that the function of automatically adjusting the output speed is met. The spline grooves 9 are formed, so that the output shaft 62 can have a thinner diameter, and the reduction of the volume of the speed changer is facilitated. The key groove 10 is formed at the longest distance by calculation, and can satisfy the requirement when the input shaft 3 moves. The switching speed can be adjusted more conveniently manually by means of the crank 11. The driving teeth 84 are transversely arranged in a thicker mode, meshing can still be achieved in the left-right moving process of the driven teeth 75, and the transmission requirement is met.

It should be noted that the control switch group 12 disclosed in this embodiment is provided with control buttons corresponding to the motor 83 and the electric telescopic rod 81, the motor 83 and the electric telescopic rod 81 can be freely configured according to practical application scenarios, the motor 83 is proposed to be a YCT2254A type electromagnetic speed-regulating asynchronous motor manufactured by daotama motor ltd, the electric telescopic rod 81 is proposed to be an XT08 type electric telescopic rod manufactured by xioute transmission equipment ltd, yao, and the control switch group 12 controls the motor 83 and the electric telescopic rod 81 to work by using a method commonly used in the prior art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A continuously variable transmission, characterized in that: the automatic speed regulation device comprises an installation box body (1), a first sleeve (2), an input shaft (3), a supporting block (4), a second sleeve (5), a working unit (6), a manual speed regulation unit (7) and an automatic regulation unit (8), wherein the right end of the rear side plate of the installation box body (1) is extended by a certain distance, the input shaft (3) is rotatably connected with the middle position of the left side plate of the installation box body (1) through the first sleeve (2), the supporting block (4) is fixedly connected with the upper surface of the middle position of the lower plate of the installation box body (1), the upper end of the supporting block (4) is fixedly connected with the second sleeve (5), the right end of the input shaft (3) is rotatably connected with the second sleeve (5), the working unit (6) is arranged in the installation box body (1), the middle position of the right side plate of the installation box body (1) is connected with the, the mounting groove has been seted up at the rear of installation box (1) right side board intermediate position, the mounting groove passes the surface of installation box (1) posterior lateral plate, fixedly connected with automatic regulating unit (8) in the mounting groove, still includes control switch group (12), control switch group (12) fixed connection is at the upper surface of installation box (1) one side, external power source is connected to control switch group (12) electricity.

2. A continuously variable transmission as set forth in claim 1, wherein: work unit (6) contain cone pulley (61), output shaft (62), friction pulley (63), fixing bearing (64), solid fixed ring (65) and pressure spring (66), cone pulley (61) fixed connection is on the surface of input shaft (3) intermediate position, output shaft (62) rotate through fixing bearing (64) and connect on the surface of installation box (1) rear side intermediate position, the tip activity joint of output shaft (62) has friction pulley (63), one section distance of output shaft (62) axial displacement can be followed to friction pulley (63), friction pulley (63) and cone pulley (61) contact are connected, gu fixed ring (65) fixed connection is on the surface of output shaft (62) tip, pressure spring (66) activity cup joints on output shaft (62) is located the inside surface of installation box (1).

3. A continuously variable transmission as set forth in claim 1, wherein: manual speed governing unit (7) contain draw-in groove (71), installation sleeve (72), adjust a section of thick bamboo (73), hand wheel (74) and driven tooth (75), draw-in groove (71) are the annular and set up on the surface of input shaft (3) right-hand member, installation sleeve (72) fixed connection is at the intermediate position of installation box (1) right side board, adjust a section of thick bamboo (73) threaded connection in installation sleeve (72), and should adjust the left end and draw-in groove (71) joint of a section of thick bamboo (73) and be in the same place, hand wheel (74) fixed connection is at the right-hand member of adjusting a section of thick bamboo (73), from the surface of adjusting a section of thick bamboo (73) right-hand member barrel of tooth (75) fixed connection.

4. A continuously variable transmission as set forth in claim 3, wherein: automatic adjusting unit (8) contain electric telescopic handle (81), sliding seat (82), motor (83), drive tooth (84) and mounting panel (85), mounting panel (85) fixed connection is on the surface of installation box (1) rear plate opening part, the stiff end fixed connection of electric telescopic handle (81) is on the surface of mounting panel (85), the flexible end fixed connection of electric telescopic handle (81) has sliding seat (82), fixed surface is connected with motor (83) on sliding seat (82), the tip fixedly connected with drive tooth (84) of motor (83) output shaft, drive tooth (84) are connected with driven tooth (75) meshing at the during operation, motor (83) and electric telescopic handle (81) electricity connection control switch group (12) respectively.

5. A continuously variable transmission as claimed in claim 2, wherein: still include spline groove (9), spline groove (9) are seted up on output shaft (62) stretch out the surface of the outside one end of installation box (1) in annular array.

6. A continuously variable transmission as set forth in claim 1, wherein: the novel gear transmission mechanism further comprises a key groove (10), and the key groove (10) is formed in the surface of the left end of the input shaft (3).

7. A continuously variable transmission as set forth in claim 3, wherein: the hand wheel device is characterized by further comprising a crank (11), wherein a rubber handle is arranged at the end of the crank (11), and the crank (11) is fixedly connected to the surface of the hand wheel (74).

8. A continuously variable transmission as set forth in claim 4, wherein: the thickness of the driving tooth (84) is larger than the axial movement distance of the input shaft (3).