CN206723378U - The discrete belt pulley variable speed device of pinion and-rack chuck type - Google Patents
The discrete belt pulley variable speed device of pinion and-rack chuck type Download PDFInfo
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- CN206723378U CN206723378U CN201720578966.2U CN201720578966U CN206723378U CN 206723378 U CN206723378 U CN 206723378U CN 201720578966 U CN201720578966 U CN 201720578966U CN 206723378 U CN206723378 U CN 206723378U
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- input
- belt wheel
- rack
- output shaft
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Abstract
A kind of speed change gear is the utility model is related to, specially a kind of novel Discrete reducing belt pulley variable speed device, including transmission mechanism, speed adjusting gear, discrete belt wheel；The transmission mechanism includes input shaft and output shaft, transmission belt；Discrete belt wheel includes the discrete belt wheel of input shaft, the discrete belt wheel of output shaft, and the discrete belt wheel of input shaft includes several input belt wheel blocks, and the discrete belt wheel of output shaft includes several output pulley blocks, and the discrete belt wheel of output shaft is with the discrete belt wheel of input shaft by being driven band connection.It is convenient that whole mechanism of the present utility model has that compact-sized, control is simple, transmission belt is changed, the features such as can realizing the stepless transmission of high pulling torque, high efficiency.
Description
Technical field
A kind of speed change gear is the utility model is related to, specially a kind of novel Discrete reducing belt pulley variable speed device.
Technical background
Buncher is a kind of transmission device, to meet machine or the production system various different operating modes in operation process
Requirement.Conventional belt buncher CVT mainly includes active wheels, driven wheels, transmission belt and hydraulic pump speed regulating control
The basic elements of character such as device.Variable part is made up of driving pulley, V-type transmission belt and passive belt wheel.Each belt wheel is oblique by band
Half of belt wheel composition one in face, one of them half wheel are fixed, and second half wheel controls it axially to move by hydraulic servo oil cylinder
It is dynamic.Axially opposing displacement between half wheel can be changed by controlling organization;The distance of two belt wheel between centers is fixed, transmission
The girth of band is constant, by controlling the axial displacement of two movable disks, makes the corresponding consecutive variations of driving wheel and follower radius, from
And realize variable speed.Conventional belt buncher is widely used, industrially with large-scale economic benefit.But
Transmission belt, because extruding produces very big frictional force, causes band to make its service life reduction compared with quick-wearing in speed-change process.In addition,
While belt wheel reducing makes transmission belt radial position change, also it is set there are Axial changes, this is further degrading the stabilization of transmission
Property, shorten transmission tape lifetime.In order to solve traditional buncher drive pulley friction at present seriously, short life problem, this
Utility model patent proposes a kind of new " the discrete belt pulley variable speed device of pinion and-rack chuck type ".
Utility model content
The purpose of the utility model is:For mesh conventional belt buncher, band and belt wheel friction are tight in transmission process
Weight, transmission belt service life is short, insufficient existing for the aspects such as hydraulic servo control system and manufacturing cost are higher, to chuck knot
Structure feature and the theory of reducing V belt translation inspire, and design a kind of discrete belt pulley variable speed device of new gear rack-and-pinion chuck type.
The purpose of this utility model is achieved through the following technical solutions, and the discrete belt wheel of pinion and-rack chuck type is stepless
Speed changer, including transmission mechanism, speed adjusting gear, discrete belt wheel；The transmission mechanism includes input shaft and output shaft, transmission belt；
Discrete belt wheel includes the discrete belt wheel of input shaft, the discrete belt wheel of output shaft, and the discrete belt wheel of input shaft includes several input belt wheel blocks,
The discrete belt wheel of output shaft includes several output pulley blocks, and the discrete belt wheel of output shaft is connected with the discrete belt wheel of input shaft by transmission belt
Connect；
Be fixedly connected input guide housings on the input shaft, and input belt wheel block is evenly distributed on the footpath of input guide housings
It can move radially into chute and along chute, input guide housings are fixed with input pivot flange and bearing is connected to casing；
Each input belt wheel block back side is respectively provided with disk type screwthread section, inputs disk type screwthread section and input cone tooth thread disk one end of belt wheel block
Disk type screwthread be engaged, input cone the tooth thread disk other end angular wheel engaged with the cone tooth at the big end of duplicate gear, duplex
The straight tooth column little gear of gear small end is engaged by support frame with the rack on input shaft, and input cone tooth thread disk passes through bearing
Coordinate on input shaft；
The export orientation that is fixedly connected on output shaft housing, output pulley block are evenly distributed on the footpath of export orientation housing
It can move radially into chute and along chute, export orientation housing is fixed with output pivot flange and is connected to case by bearing
Body；Each discrete output belt wheel block back side has dish-type thread segment, dish-type thread segment thread rotary orientation and the input of output pulley block
The dish-type thread segment thread rotary orientation of belt wheel block is on the contrary, the disk type screwthread section and the disk of output bevel gear screw thread disk one end of output pulley block
Type screw thread is engaged, and the disk type screwthread of the disk type screwthread and input cone tooth thread disk of output bevel gear screw thread disk is oppositely oriented；Output
The cone tooth of the cone tooth thread disk other end is engaged with the cone tooth at the big end of duplicate gear, and the straight tooth column little gear of duplicate gear small end is led to
Support frame is crossed to engage with the rack on output shaft；Output bevel gear screw thread disk is by bearing fit on output shaft；
The gear makes input shaft be moved axially with the rack on output shaft.
Preferably, input guide housings are fixedly connected with input shaft by spline, input guide housings and input supporting methods
Orchid is fixedly connected, and input pivot flange is connected by bearing with casing；Symmetrical a pair of racks on input shaft.
Preferably, export orientation housing is fixedly connected with output shaft by spline, export orientation housing and output supporting methods
Orchid is fixedly connected, and output pivot flange is connected by bearing with casing；Symmetrical a pair of racks on output shaft.
Preferably, the speed adjusting gear includes servomotor, shift fork, U-shaped set；U is set with respectively on input shaft, output shaft
Jacket, the U-shaped set on input shaft are fixed with the rack on input shaft, and the U-shaped set on output shaft is fixed with the rack on output shaft；
The both ends of shift fork are inserted in the U-type groove of the U-shaped set of input shaft and output shaft；Servomotor is connected biography with shift fork by drive lead screw
It is dynamic.
Preferably, support frame is respectively fixed with input shaft, output shaft, duplicate gear coordinates on support frame, duplex
Gear rotates together with axle.
Preferably, rack is axially engaged on output shaft by chute.
Preferably, rack is axially engaged on input shaft by chute.
Preferably, export orientation housing is screwed with output pivot flange, input guide housings and input pivot flange
It is screwed.
Preferably, the straight tooth column little gear of duplicate gear small end is engaged by support frame with the rack on input shaft；It is double
The straight tooth column little gear of connection gear small end is engaged by support frame with the rack on output shaft.
Compared with prior art, the utility model has advantages below：
First, a pair of master and slave drive pulleys of the buncher are located on the outside of casing, be advantageous to belt wheel with changing and tieing up
Repair.Reducing uses reliable dish-type screw-driven, and speed governing is convenient, accurately.High pulling torque, high efficiency transmission can be realized.This practicality
The new discrete belt pulley variable speed device of new gear rack-and-pinion chuck type can realize that stepless step-up drive can also realize nothing
Level deceleration transmission.Speed governing can also can be in a stationary situation realized in speed governing under motion conditions.
Second, the buncher is by several（6 ~ 12）Claw is transformed to belt wheel block, and some belt wheel blocks are in an orderly manner
Discrete type belt wheel is combined as, changes the radial distance of discrete belt wheel block to reach change pulley diameters.A pair of discrete type belt wheels lead to
Transmission V belt translation is crossed, just forms infinitely variable speed gearing.Several belt wheel blocks are evenly distributed in guide housings body, belt wheel
The dish-type screw thread of the dish-type thread segment at the block back side and cone tooth thread disk coordinates.
3rd, in order to realize the orderly reducing of several claws, the utility model is moved using shift fork band carry-over bar, rack
Duplicate gear is driven to rotate, the conical gear band mantle tooth thread disc spins on duplicate gear, so as to drive several belt wheel blocks
Generation moves radially, and realizes the reducing of discrete type belt wheel.When one of which pulley diameters increase, another group of pulley diameters become
It is small, ensure being basically unchanged for transmission strip length.Two racks are symmetrical and are slidably fitted in input shaft, on output shaft.Watch
Take motor driving drive lead screw and drive shift fork axial movement, U-shaped set empty set is on input, output shaft, rack and U-shaped set on axle
It is fixed.It is convenient that whole mechanism of the present utility model has that compact-sized, control is simple, transmission belt is changed, can realize high pulling torque,
The features such as high efficiency stepless transmission.
Brief description of the drawings
Fig. 1 is the left side view of the discrete belt pulley variable speed device of the utility model pinion and-rack chuck type.
Fig. 2 be along Fig. 1 in A-A directions sectional view；
Fig. 3 is the axonometric drawing of discrete belt wheel block；
Fig. 4 is the axonometric drawing for boring tooth thread disk；
Fig. 5 is the partial enlarged drawing in Fig. 2；
In figure：1. export pivot flange；2. output bevel gear screw thread disk；3. export orientation housing；4. output shaft； 5.
Output pulley block；6. transmission belt；7. input belt wheel block；8. input shaft；9. input guide housings；10. input cone tooth thread
Disk；11. input pivot flange；12. casing；13. duplicate gear；14. support frame；15. rack；16.U jackets； 17.
Shift fork；18. servomotor；19. drive lead screw；20. dish-type thread segment；21. screw thread disk.
Embodiment
As shown in Figures 1 and 2, the discrete belt pulley variable speed device of pinion and-rack chuck type, whole mechanism mainly by
Transmission mechanism, speed adjusting gear etc. form.
The utility model buncher is in terms of transmission：Utilize a pair of discrete the belt wheel groups and biography that can arbitrarily change diameter
Dynamic band realizes stepless speed regulation；Control aspect uses servomotor.Whole system has the advantages that compact-sized, manufacturing cost bottom.
Overall belt wheel is substituted using band wheel with adjustable diameter to be driven, the belt wheel of variable-diameter is by several discrete belt wheel blocks
Composition, each belt wheel block back side have dish-type thread segment, and discrete belt wheel block is uniformly distributed in the radial groove of guide housings,
Belt wheel block can move radially along chute, and guide housings are screwed with pivot flange and are connected to casing by bearing.With band
What the dish-type thread segment at the wheel block back side was engaged is cone tooth thread disk, and one end of cone tooth thread disk is complete dish-type screw thread, separately
One end is angular wheel, and cone tooth thread disk on input, output shaft, relative can be inputted, output shaft rotation by bearing fit.It is double
The straight tooth column little gear of connection gear small end is engaged by support frame with the rack on input, output shaft, the big end of duplicate gear
Cone tooth engages with boring the cone tooth of tooth thread disk one end.Input, the rack on output shaft are moved axially by gear, makes cone
Tooth thread disk is rotated clockwise or counter-clockwise, and belt wheel block is realized through dish-type screw thread and moved radially, and reaches the purpose for changing diameter,
Combined finally by transmission belt with tensioning apparatus and realize the whole stepless transmission of mechanism reducing.
For discrete belt wheel combination on input shaft, each discrete back side of input belt wheel block 7 has dish-type thread segment 20 such as attached
Fig. 3, input belt wheel block 7 uniformly in the radial groove of distribution input guide housings 9, input guide housings 9 and input supporting methods
Orchid 11 is screwed and is connected to casing 12 by bearing.What is be engaged with the dish-type thread segment at input belt wheel block 7 back side is defeated
Enter to bore tooth thread disk 10, one end of input cone tooth thread disk is complete dish-type screw thread, and the other end is angular wheel, input cone tooth
Screw thread disk is by bearing fit on input shaft 8.The straight tooth column little gear of the small end of duplicate gear 13 by support frame 14 with it is defeated
The rack 15 entered on axle 8 engages, and the cone tooth at the big end of duplicate gear engages with the cone tooth of the one end of input cone tooth thread disk 10.Rack 15
Axially engaged by chute on input shaft 8, move axially the rack on input shaft 8 by gear, through duplicate gear
13 drive input cone tooth thread disk 10 to rotate, and are that the input belt wheel block inputted in guide housings 9 moves radially through screw-driven, reach
To the purpose for changing driving pulley diameter.
For discrete belt wheel combination on output shaft, each back side of discrete output belt wheel block 5 equally has dish-type thread segment spiral shell
Line rotation direction is oppositely oriented with input belt wheel block 7, and output pulley block 5 is uniformly distributed in the radial groove of export orientation housing 3,
Export orientation housing 3 is screwed with output pivot flange 1 and is connected to casing 12 by bearing.With the back side of output pulley block 5
Dish-type thread segment is engaged is output bevel gear screw thread disk 2, one end of output bevel gear screw thread disk is screw thread disk 21, screw thread disk 21
End face be machined with complete dish-type screw thread, dish-type screw thread is with the dish-type screw thread on input cone tooth thread disk on the contrary, the other end is
Angular wheel, output bevel gear screw thread disk is by bearing fit on output shaft 4.The straight tooth column little gear of the small end of duplicate gear 13
Engaged by support frame 14 with the rack 15 on output shaft 4, cone tooth and the one end of output bevel gear screw thread disk 2 at the big end of duplicate gear
Bore tooth engagement.Rack 15 is axially engaged on output shaft 4 by chute, and the rack axial direction on output shaft 4 is made by gear
It is mobile, drive output bevel gear screw thread disk 2 to rotate through duplicate gear 13, the output band in export orientation housing 3 is made through screw-driven
Wheel block moves radially, so as to change driven pulley diameter.
The He of input cone tooth thread disk 10 in reducing belt wheel group in reducing belt wheel group and output shaft on the input shaft
Output bevel gear screw thread disk 2, the dish-type thread rotary orientation of two cone tooth thread disks are opposite.Two principals and subordinates move reducing belt wheel group and pass through transmission
Band 6 connects.
The speed adjusting gear：16 empty sets of U-shaped set on input, output shaft 8,4, with the rack on axle fix by U-shaped set.Shift fork
17 both ends are inserted in the U-type groove of U-shaped set；Servomotor 18 is connected transmission with shift fork 17 by drive lead screw 19, makes shift fork edge
Drive lead screw to move axially, through U-shaped set 16 enable input, the rack on output shaft realize simultaneously, at the same speed, it is in the same direction
Axial movement, the drive diameter even variation of two reducing belt wheel groups is finally driven, realizes variable speed.
As shown in Figure 2, when servomotor 18 drives drive lead screw 19 to rotate, shift fork 17 is driven to move right diagram side
To.Shift fork both ends insert input respectively, on output shaft 8,4 in the U-type groove of U-shaped set 16.16 empty sets of U-shaped set are in input, output shaft
On, and with output, the secure fit of rack 15 on output shaft.Band carry-over bar 15 is moved together when shift fork moves to right.For defeated
Enter axle, moving to right for rack 15 rotates clockwise input cone tooth thread disk 10 through duplicate gear 13, inputted defeated in guide housings 9
Enter belt wheel block 7 and realize radial outward movement through dish-type screw-driven, so that the diameter of input belt wheel becomes big.For output shaft, rack
15 move to right rotates clockwise output bevel gear screw thread disk 2 through duplicate gear 13, the output pulley block 5 in export orientation housing 3
Realize that footpath is inwardly moved because the hand of spiral of input cone tooth thread disk and output bevel gear screw thread disk is on the contrary, make through dish-type screw-driven
The diameter of output pulley becomes size, realizes the step-up drive that gearratio diminishes.When shift fork is moved to limit on the right-right-hand limit, driving pulley
Diameter reaches maximum, and the diameter of driven pulley reaches minimum.When shift fork moves to left, the diameter for inputting belt wheel diminishes, output pulley
Diameter become big, realize the retarded motion of gearratio increase；When shift fork runs to limit on the left, the diameter for inputting belt wheel reaches most
Small, the diameter of output pulley reaches maximum.Complete the speed-change process of a completion.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, all those familiar with the art are disclosed in this patent in technical scope, according to the skill of this patent
The design of art scheme and its this patent is subject to equivalent substitution or changed to cover in the scope of protection of the utility model.
Claims (9)
1. the discrete belt pulley variable speed device of pinion and-rack chuck type, it is characterized in that, the speed changer includes transmission mechanism, speed governing
Mechanism, discrete belt wheel；The transmission mechanism includes input shaft（8）And output shaft（4）, transmission belt（6）；Discrete belt wheel includes input
The discrete belt wheel of axle, the discrete belt wheel of output shaft, the discrete belt wheel of input shaft include several input belt wheel blocks（7）, output shaft divergent belt
Wheel includes several output pulley blocks（5）, the discrete belt wheel of output shaft and the discrete belt wheel of input shaft pass through transmission belt（6）Connection；
The input shaft（8）On be fixedly connected input guide housings（9）, input belt wheel block（7）It is evenly distributed on input guiding shell
Body（9）Radial groove in and can be moved radially along chute, input guide housings（9）With inputting pivot flange（11）Fix simultaneously
Bearing is connected to casing（12）；Each input belt wheel block（7）The back side is respectively provided with disk type screwthread section, inputs belt wheel block（7）Dish type
Thread segment and input cone tooth thread disk（10）The disk type screwthread of one end is engaged, input cone tooth thread disk（10）The taper of the other end
Gear and duplicate gear（13）The cone tooth engagement held greatly, duplicate gear（13）The straight tooth column little gear of small end passes through support frame
（14）With input shaft（8）On rack（15）Engagement, input cone tooth thread disk（10）By bearing fit in input shaft（8）On；
The output shaft（4）On be fixedly connected export orientation housing（3）, output pulley block（5）It is evenly distributed on export orientation shell
Body（3）Radial groove in and can be moved radially along chute, export orientation housing（3）With exporting pivot flange（1）Fix simultaneously
Casing is connected to by bearing（12）；Each discrete output belt wheel block（5）The back side has dish-type thread segment, output pulley block（5）
Dish-type thread segment thread rotary orientation with input belt wheel block（7）Dish-type thread segment thread rotary orientation on the contrary, output pulley block（5）Disk
Shape thread segment and output bevel gear screw thread disk（2）The dish-type screw thread of one end is engaged, output bevel gear screw thread disk（2）Disk type screwthread with
Input cone tooth thread disk（10）Disk type screwthread it is oppositely oriented；Output bevel gear screw thread disk（2）The cone tooth and duplicate gear of the other end
（13）The cone tooth engagement held greatly, duplicate gear（13）The straight tooth column little gear of small end passes through support frame（14）With output shaft（4）
On rack（15）Engagement；Output bevel gear screw thread disk（2）By bearing fit in output shaft（4）On；
The gear makes input shaft（8）With output shaft（4）On rack axial movement.
2. the discrete belt pulley variable speed device of pinion and-rack chuck type according to claim 1, it is characterized in that, input is oriented to
Housing（9）With input shaft（8）It is fixedly connected by spline, inputs guide housings（9）With inputting pivot flange（11）It is fixedly connected,
Input pivot flange passes through bearing and casing（12）Connection；Symmetrical a pair of racks on input shaft（15）.
3. the discrete belt pulley variable speed device of pinion and-rack chuck type according to claim 1, it is characterized in that, export orientation
Housing（3）With output shaft（4）It is fixedly connected by spline, export orientation housing（3）With exporting pivot flange（1）It is fixedly connected,
Export pivot flange（1）Pass through bearing and casing（12）Connection；Symmetrical a pair of racks on output shaft（15）.
4. the discrete belt pulley variable speed device of pinion and-rack chuck type according to claim 1, it is characterized in that, the speed governing
Mechanism includes servomotor（18）, shift fork（17）, U-shaped set（16）；Input shaft（8）, output shaft（4）It is upper to be set with U-shaped set respectively
（16）, input shaft（8）On U-shaped set and input shaft（8）On rack fix, output shaft（4）On U-shaped set and output shaft（4）
On rack fix；Shift fork（17）Both ends be inserted in input shaft（8）With output shaft（4）U-shaped set U-type groove in；Servomotor
（18）With shift fork（17）Pass through drive lead screw（19）Connection transmission.
5. the discrete belt pulley variable speed device of pinion and-rack chuck type according to claim 1, it is characterized in that, inputting
Support frame is respectively fixed with axle, output shaft（14）, duplicate gear（13）Coordinate on support frame, duplicate gear（13）With axle
Rotate together.
6. the discrete belt pulley variable speed device of pinion and-rack chuck type according to claim 1, it is characterized in that, rack（15）
Axially engaged by chute in output shaft（4）On.
7. the discrete belt pulley variable speed device of pinion and-rack chuck type according to claim 1, it is characterized in that, rack（15）
Axially engaged by chute in input shaft（8）On.
8. the discrete belt pulley variable speed device of pinion and-rack chuck type according to claim 1, it is characterized in that, export orientation
Housing（3）With exporting pivot flange（1）It is screwed, inputs guide housings（9）With inputting pivot flange（11）It is screwed.
9. the discrete belt pulley variable speed device of pinion and-rack chuck type according to claim 1, it is characterized in that, duplicate gear
（13）The straight tooth column little gear of small end passes through support frame（14）With input shaft（8）On rack（15）Engagement；Duplicate gear
（13）The straight tooth column little gear of small end passes through support frame（14）With output shaft（4）On rack（15）Engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720578966.2U CN206723378U (en) | 2017-05-23 | 2017-05-23 | The discrete belt pulley variable speed device of pinion and-rack chuck type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720578966.2U CN206723378U (en) | 2017-05-23 | 2017-05-23 | The discrete belt pulley variable speed device of pinion and-rack chuck type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206723378U true CN206723378U (en) | 2017-12-08 |
Family
ID=60510799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720578966.2U Expired - Fee Related CN206723378U (en) | 2017-05-23 | 2017-05-23 | The discrete belt pulley variable speed device of pinion and-rack chuck type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206723378U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910792A (en) * | 2018-07-20 | 2018-11-30 | 杭州继高电力技术有限公司 | Project of transmitting and converting electricity debugging and maintenance device |
| CN111273175A (en) * | 2020-01-21 | 2020-06-12 | 合肥国轩高科动力能源有限公司 | Short circuit test follow-up device before cylindrical battery liquid injection |
| CN111779808A (en) * | 2019-12-12 | 2020-10-16 | 内蒙古农业大学 | Variable diameter continuously variable transmission |
-
2017
- 2017-05-23 CN CN201720578966.2U patent/CN206723378U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910792A (en) * | 2018-07-20 | 2018-11-30 | 杭州继高电力技术有限公司 | Project of transmitting and converting electricity debugging and maintenance device |
| CN111779808A (en) * | 2019-12-12 | 2020-10-16 | 内蒙古农业大学 | Variable diameter continuously variable transmission |
| CN111273175A (en) * | 2020-01-21 | 2020-06-12 | 合肥国轩高科动力能源有限公司 | Short circuit test follow-up device before cylindrical battery liquid injection |
| CN111273175B (en) * | 2020-01-21 | 2022-01-07 | 合肥国轩高科动力能源有限公司 | Short circuit test follow-up device before cylindrical battery liquid injection |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171208 Termination date: 20200523 |