CN106402304B - Stepless speed change device - Google Patents
Stepless speed change device Download PDFInfo
- Publication number
- CN106402304B CN106402304B CN201610824587.7A CN201610824587A CN106402304B CN 106402304 B CN106402304 B CN 106402304B CN 201610824587 A CN201610824587 A CN 201610824587A CN 106402304 B CN106402304 B CN 106402304B
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- CN
- China
- Prior art keywords
- mandrel
- retainer
- roller
- housing
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
- Support Of The Bearing (AREA)
Abstract
The invention discloses a kind of stepless speed change device, including housing, initiative taper disk, mandrel, taper roller, roller follower and speed changing control mechanism；The initiative taper disk and mandrel are coaxially disposed and are rotationally connected with housing；The roller follower is connected to mandrel by spline；The taper roller is sequentially connected between initiative taper disk and roller follower, and the busbar corresponding to point contacted on the circular conical surface of taper roller with roller follower is parallel with mandrel；The speed changing control mechanism is installed on housing for roller follower to be controlled to be slided along mandrel；By taper roller passing power, power dividing is realized, output is stable and efficient；Structure very simple compared with existing product, it is convenient that parts are manufactured, and convenient for safeguarding；Speed Control is realized by worm and gear, double cam, simple and durable, and intelligent speed changing can also be realized with stepper motor cooperation.
Description
Technical field
The invention belongs to technical field of mechanical transmission more particularly to a kind of stepless speed change devices.
Background technology
In the prior art and product, stepless speed change device is widely used, huge in many industry domain requirement amounts, still
The problems such as existing stepless speed change device is expensive there are complicated, inconvenient maintenance, although electronic control technology is more and more flourishing,
But mechanical stepless speed change device performance is stablized, cost is cheap, therefore proposes novel mechanical stepless speed-changing device ten
Divide necessity.
Invention content
In view of this, it is stable, of low cost, easy to repair, simple in structure light the object of the present invention is to provide a kind of performance
Skilful stepless speed change device.
The stepless speed change device of the present invention, including housing, initiative taper disk, mandrel, taper roller, roller follower and speed change control
Mechanism processed；The initiative taper disk and mandrel are coaxially disposed and are rotationally connected with housing；The roller follower is connected by spline
It is connected to mandrel；The taper roller is sequentially connected between initiative taper disk and roller follower, on the circular conical surface of taper roller with from
Busbar corresponding to the point of dynamic roller contact is parallel with mandrel；The speed changing control mechanism is installed on housing for controlling driven rolling
Son is slided along mandrel.
Further, bearing support, retainer and pin are further included；The bearing support and retainer are coaxially disposed with mandrel,
Bearing support is rotationally connected between initiative taper disk and mandrel, retainer be rotationally connected between housing and mandrel simultaneously retainer with
The holding screw for retainer to be positioned relative to housing is equipped between housing；The taper roller is installed on bearing support
Between retainer；The pin passes through the centre bore of retainer and taper roller and is fixedly connected on bearing support.
Further, adjustment spring is further included；The adjustment spring pocket is loaded on pin outside and is supported on supporting rack and pin
Between.
Further, the taper roller at least two and being arranged circumferentially along initiative taper disk and mandrel, it is described
Retainer includes being set in the sleeve body portion between mandrel and housing and extending to taper roller axial outer end correspondingly
The fork in portion.
Further, the speed changing control mechanism includes gear box, worm screw, turbine, axis pin, control stick, straight pin and shift fork；
The worm screw and turbine are rotationally connected with gear box and are joined together to form worm couple, and wherein turbine passes through axis pin
Be rotatablely connected with gear box, the control stick is fixed on turbine and puts in enclosure interior, the shift fork be connected to control stick with from
It between dynamic roller, is wherein rotatablely connected between shift fork and control stick by the straight pin, axis pin is parallel with straight pin and two
Person is vertical with mandrel.
Further, the axial both ends of the turbine are equipped with axially extended axis body；One end of the control stick is set in
Outside two axis bodies at turbine both ends and pass through screw and be fastenedly connected.
Further, the housing includes drive end bearing bracket and rear end cap；The drive end bearing bracket and rear end cap are snapped together and are passed through
Connector is fastenedly connected.
Further, the centre bore both ends of the initiative taper disk are stepped hole, front end stepped hole and shaft end locking nut it
Between installed thrust bearing, mounting and adjusting gasket and radial bearing between rear end stepped hole and bearing support；Bearing support front end shaft part with
Radial bearing coaxial cooperation and the inner ring for being adjacent to radial bearing；Bearing support centre bore rear end is stepped hole and the stepped hole and core
Installed thrust bearing between axis, mandrel pass through mandrel with being respectively in two thrust bearing coaxial cooperations at bearing support axial direction both ends
Inside bearing support and do not contact；Mandrel front end is equipped with screw thread, and shaft end locking nut compresses respective thrust bearing by thread fitting.
Further, shaft part is splined shaft among mandrel；Shaft part is for optical axis and equipped with boss, the optical axis of mandrel on rear side of mandrel
It is assembled between the sleeve body portion of retainer there are two radial bearing and the axle sleeve being axially supported between two radial bearing,
The sleeve body portion inner circle of retainer is equipped with by screw thread locks for two radial bearing to be pressed in the babinet of boss positioning
Nut；The sleeve body portion outer circle of the retainer is multi-diameter shaft and radial bearing, the set of retainer are equipped between housing
Body portion periphery corresponds to holding screw equipped with locating slot.
The beneficial effects of the invention are as follows：By taper roller passing power, power dividing is realized, output is stablized and efficiency
It is high；Structure very simple compared with existing product, it is convenient that parts are manufactured, and convenient for safeguarding；Speed Control passes through worm gear
Worm screw, double cam are realized, simple and durable, and intelligent speed changing can also be realized with stepper motor cooperation.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structure diagram of the speed changing control mechanism of the present invention；
Fig. 3 is the operation principle schematic diagram of the present invention；
Fig. 4 is the A-A sectional views of Fig. 2；
Fig. 5 is enlarged view at the B of Fig. 2.
Specific embodiment
Fig. 1 is the structural diagram of the present invention；Fig. 2 is the structure diagram of the speed changing control mechanism of the present invention；Fig. 3 is this
The operation principle schematic diagram of invention, Fig. 4 are the A-A sectional views of Fig. 2；Fig. 5 is enlarged view at the B of Fig. 2, as shown in the figure：This reality
The stepless speed change device of example is applied, including housing, initiative taper disk 1, mandrel 5, taper roller 12, roller follower 4 and speed Control machine
Structure；The initiative taper disk 1 and mandrel 5 are coaxially disposed and are rotationally connected with housing；The roller follower 4 is connected by spline
In mandrel 5；The taper roller 12 is sequentially connected between initiative taper disk 1 and roller follower 4, on the circular conical surface of taper roller 12
The busbar corresponding to point contacted with roller follower 4 is parallel with mandrel 5；The speed changing control mechanism is installed on housing for controlling
Roller follower 4 is slided along mandrel 5；Roller follower 4 is driven to move by speed changing control mechanism；Power is inputted from initiative taper disk 1, is led to
Cross 12 passing power of taper roller contacted, taper roller 12 contacts passing power with roller follower 4, roller follower 4 with
5 spline fitted passing power of mandrel, between initiative taper disk 1 and taper roller 12 and between taper roller 12 and roller follower 4
Pass through rubbing action passing power；Power transmission line is " input-initiative taper disk 1- taper roller 12- roller follower 4- cores
Axis 5- is exported "；The output of not synchronized ratio can be realized by mobile roller follower 4, position I shown in Fig. 3 is low speed end, and position II is
Speed end.
In the present embodiment, bearing support 2, retainer 9 and pin 3 are further included；The bearing support 2 and retainer 9 with mandrel 5
Coaxial arrangement, bearing support 2 is rotationally connected between initiative taper disk 1 and mandrel 5, retainer 9 be rotationally connected with housing and mandrel 5 it
Between be equipped between retainer 9 and housing for the holding screw 6 that positions retainer 9 relative to housing simultaneously；The circle
Cone roller 12 is installed between bearing support 2 and retainer 9；The pin 3 passes through the centre bore of retainer 9 and taper roller 12 simultaneously
It is fixedly connected on bearing support 2；Retainer 9 is forked, the drilling of fork end, pin 3 be installed in hole and in taper roller 12
Heart hole coaxial cooperation, 12 centre bore opposite side of taper roller and the raised short axle coaxial cooperation of 2 both sides of bearing support, and pass through short axle
The shaft shoulder limits；3 end thread of pin coordinates with 2 short axle internal thread hole of bearing support.
In the present embodiment, adjustment spring 11 is further included；The adjustment spring 11 is set in 3 outside of pin and is supported on support
Between frame and pin 3；Pin 3 is made to generate larger pressure between the internal thread of bearing support 2 under the action of spring 11 is adjusted,
Therefore the position stability of pin 3 can be improved, pin 3 is avoided to loosen.
In the present embodiment, the taper roller 12 at least two and along the uniform cloth of circumferential direction of initiative taper disk 1 and mandrel 5
It puts, the retainer 9 includes being set in the sleeve body portion between mandrel 5 and housing and extends to taper roller correspondingly
The fork of 12 axial outer end portions, fork are integrally formed with sleeve body portion, simple in structure light and handy.
In the present embodiment, the speed changing control mechanism include gear box 16, worm screw 17, turbine, axis pin 18, control stick 20,
Straight pin 21 and shift fork 22；The worm screw 17 and turbine are rotationally connected with gear box 16 and are joined together to form worm gear snail
Bar pair, wherein turbine are rotatablely connected by axis pin 18 and gear box 16, and the control stick 20 is fixed on turbine and puts in housing
Portion, the shift fork 22 are connected between control stick 20 and roller follower 4, wherein pass through the circle between shift fork 22 and control stick 20
Pin 21 is rotatablely connected, and axis pin 18 is parallel with straight pin 21 and the two is vertical with mandrel 5；Housing corresponds to gear box 16 and is equipped with
Opening, 16 inlay card of gear box is in the opening of housing and passes through strong structure glue and fixes, and 22 inner surface of shift fork and roller follower 4 are recessed
Slot periphery clearance fit；17 projecting shaft of worm screw can connect stepper motor, and rotary worm 17 can drive worm gear 19 to rotate, so as to drive
The control stick 20 being connected with worm gear 19 rotates, and the rotation of control stick 20 drives shift fork 22 to move up and down simultaneously and be moved forward and backward, shift fork
22 when moving up and down without departing from 4 groove of roller follower, so as to which roller follower 4 be driven to be moved forward and backward, using power intake as
Before front end, power output end are rear end, therefore left side is in Fig. 1, after right side is.
In the present embodiment, the axial both ends of the turbine are equipped with axially extended axis body；One end of the control stick 20
It is set in outside two axis bodies at turbine both ends and passes through screw 23 and be fastenedly connected；It is simple in structure, durable.
In the present embodiment, the housing includes drive end bearing bracket 13 and rear end cap 10；The drive end bearing bracket 13 and rear end cap 10 fasten
Together and pass through connector and be fastenedly connected；It is convenient that parts are manufactured, and convenient for safeguarding.
In the present embodiment, the centre bore both ends of the initiative taper disk 1 are stepped hole, front end stepped hole and shaft end locking screw
Installed thrust bearing between mother 15, mounting and adjusting gasket 14 and radial bearing between rear end stepped hole and bearing support 2；Bearing support 2
Front end shaft part and radial bearing coaxial cooperation and the inner ring for being adjacent to radial bearing；2 centre bore rear end of bearing support for stepped hole and
Installed thrust bearing between the stepped hole and mandrel 5, mandrel 5 and two thrust bearings for being respectively in the axial both ends of bearing support 2 are same
Axis cooperation makes mandrel 5 by 2 inside of bearing support and does not contact；5 front end of mandrel is equipped with screw thread, and shaft end locking nut 15 passes through screw thread
Cooperation compresses respective thrust bearing；So far, initiative taper disk 1, bearing support 2 and mandrel 5 link together, and be coaxially assemblied in housing
It is interior, realize that each component movement does not interact by bearing.
In the present embodiment, 5 intermediate shaft part of mandrel is splined shaft；5 rear side shaft part of mandrel is for optical axis and equipped with boss, mandrel
Between 5 optical axis and the sleeve body portion of retainer 9 assembling there are two radial bearing and be axially supported on two radial bearing it
Between axle sleeve 8, the sleeve body portion inner circle of retainer 9 is equipped with to be used for two radial bearing is pressed in boss and position by screw thread
Babinet locking nut 7；The sleeve body portion outer circle of the retainer 9 is multi-diameter shaft and is equipped between housing to mandrel
It holds, the sleeve body portion periphery of retainer 9 corresponds to holding screw 6 equipped with locating slot.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail in good embodiment, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (7)
1. a kind of stepless speed change device, it is characterised in that：Including housing, initiative taper disk, mandrel, taper roller, roller follower and
Speed changing control mechanism；The initiative taper disk and mandrel are coaxially disposed and are rotationally connected with housing；The roller follower passes through
Spline is connected to mandrel；The taper roller is sequentially connected between initiative taper disk and roller follower, the circular conical surface of taper roller
Busbar corresponding to the upper point contacted with roller follower is parallel with mandrel；The speed changing control mechanism is installed on housing for controlling
Roller follower is slided along mandrel；The housing includes drive end bearing bracket and rear end cap；The drive end bearing bracket and rear end cap snap together simultaneously
It is fastenedly connected by connector；The centre bore both ends of the initiative taper disk are stepped hole, front end stepped hole and shaft end locking screw
Installed thrust bearing between mother, mounting and adjusting gasket and radial bearing between rear end stepped hole and bearing support；Bearing support front end axis
Section is with radial bearing coaxial cooperation and is adjacent to the inner ring of radial bearing；Bearing support centre bore rear end is stepped hole and the stepped hole
The installed thrust bearing between mandrel, mandrel make mandrel with being respectively in two thrust bearing coaxial cooperations at bearing support axial direction both ends
By inside bearing support and not contacting；Mandrel front end is equipped with screw thread, and shaft end locking nut compresses respective thrust by thread fitting
Bearing.
2. stepless speed change device according to claim 1, it is characterised in that：Further include bearing support, retainer and pin；Institute
It states bearing support and retainer to be coaxially disposed with mandrel, bearing support is rotationally connected between initiative taper disk and mandrel, and retainer turns
Dynamic be connected between housing and mandrel is equipped with to position retainer relative to housing between retainer and housing simultaneously
Holding screw；The taper roller is installed between bearing support and retainer；The pin passes through retainer and taper roller
Centre bore and be fixedly connected on bearing support.
3. stepless speed change device according to claim 2, it is characterised in that：Further include adjustment spring；The adjustment spring
It is set in outside pin and is supported between supporting rack and pin.
4. stepless speed change device according to claim 3, it is characterised in that：The taper roller at least two and edge
Initiative taper disk and mandrel are arranged circumferentially, the retainer include the sleeve body portion being set between mandrel and housing and
The one-to-one fork for extending to taper roller axial outer end portion.
5. stepless speed change device according to claim 1, it is characterised in that：The speed changing control mechanism include gear box,
Worm screw, turbine, axis pin, control stick, straight pin and shift fork；The worm screw and turbine are rotationally connected with gear box and are connected to
Worm couple is formed together, and wherein turbine is rotatablely connected by axis pin and gear box, and the control stick is fixed on turbine and stretches
Into enclosure interior, the shift fork is connected between control stick and roller follower, wherein passes through the circle between shift fork and control stick
Pin is rotatablely connected, and axis pin is parallel with straight pin and the two is vertical with mandrel.
6. stepless speed change device according to claim 5, it is characterised in that：The axial both ends of the turbine are equipped with axial direction
The axis body of stretching；One end of the control stick is set in outside two axis bodies at turbine both ends and passes through screw and is fastenedly connected.
7. stepless speed change device according to claim 4, it is characterised in that：Shaft part is splined shaft among mandrel；After mandrel
Side axle section for optical axis and equipped with boss, between the optical axis of mandrel and the sleeve body portion of retainer assembling there are two radial bearing with
And the axle sleeve between two radial bearing is axially supported on, the sleeve body portion inner circle of retainer is equipped with by screw thread for should
Two radial bearings are pressed in the babinet locking nut of boss positioning；The sleeve body portion outer circle of the retainer for multi-diameter shaft and with
Radial bearing is installed, the sleeve body portion periphery of retainer corresponds to holding screw equipped with locating slot between housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610824587.7A CN106402304B (en) | 2016-09-14 | 2016-09-14 | Stepless speed change device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610824587.7A CN106402304B (en) | 2016-09-14 | 2016-09-14 | Stepless speed change device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106402304A CN106402304A (en) | 2017-02-15 |
| CN106402304B true CN106402304B (en) | 2018-07-10 |
Family
ID=57996460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610824587.7A Expired - Fee Related CN106402304B (en) | 2016-09-14 | 2016-09-14 | Stepless speed change device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106402304B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003021212A (en) * | 2001-07-05 | 2003-01-24 | Ntn Corp | Friction type continuously variable transmission |
| CN101550995A (en) * | 2009-05-25 | 2009-10-07 | 孔劲松 | Stepless speed change device of circularly arranged cone pulleys |
| KR20110001327A (en) * | 2009-06-30 | 2011-01-06 | 현대 파워텍 주식회사 | Continuously variable transmission |
| CN103225686A (en) * | 2013-04-08 | 2013-07-31 | 无锡金田元丰科技股份有限公司 | Gear-shifting operating mechanism of automatic transmission |
| CN206000953U (en) * | 2016-09-14 | 2017-03-08 | 西南大学 | Mechanical stepless speed change device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9328810B2 (en) * | 2006-08-28 | 2016-05-03 | Richard C. Raney | Variable ratio gearmotor with interactive ratio control |
-
2016
- 2016-09-14 CN CN201610824587.7A patent/CN106402304B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003021212A (en) * | 2001-07-05 | 2003-01-24 | Ntn Corp | Friction type continuously variable transmission |
| CN101550995A (en) * | 2009-05-25 | 2009-10-07 | 孔劲松 | Stepless speed change device of circularly arranged cone pulleys |
| KR20110001327A (en) * | 2009-06-30 | 2011-01-06 | 현대 파워텍 주식회사 | Continuously variable transmission |
| CN103225686A (en) * | 2013-04-08 | 2013-07-31 | 无锡金田元丰科技股份有限公司 | Gear-shifting operating mechanism of automatic transmission |
| CN206000953U (en) * | 2016-09-14 | 2017-03-08 | 西南大学 | Mechanical stepless speed change device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106402304A (en) | 2017-02-15 |
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| C10 | Entry into substantive examination | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180710 Termination date: 20200914 |