CN1203329A - Conical pulley stepless speed change device - Google Patents
Conical pulley stepless speed change device Download PDFInfo
- Publication number
- CN1203329A CN1203329A CN 97109147 CN97109147A CN1203329A CN 1203329 A CN1203329 A CN 1203329A CN 97109147 CN97109147 CN 97109147 CN 97109147 A CN97109147 A CN 97109147A CN 1203329 A CN1203329 A CN 1203329A
- Authority
- CN
- China
- Prior art keywords
- stepless speed
- cone
- speed change
- screw thread
- pulley
- 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.)
- Granted
Links
Images
Abstract
A stepless speed variator using conic wheels features that the number of spiral teeth on the surface of conic wheel is increasing from small end to big end. When two conic wheels arranged parallelly move axially while rotate, realizing stepless speed variation. Its advantages include no slide error, precise drive, high drive force moment, small size and low cost..
Description
The invention relates to stepless speed variator, particularly a kind of conical pulley stepless speed change device.
Known conical pulley stepless speed change device is on the diaxon that is parallel to each other, and with the small end setting of corresponding another cone pulley of the big end of a cone pulley, two cone pulleys connect through belt realizes transmission.During work, the shift fork ring promotes belt and moves axially along cone pulley, realizes stepless change.But this speed changer slip is big, transmission efficiency is low, driving torque is little.
The purpose of this invention is to provide that a kind of moment of rotation is big, the accurate conical pulley stepless speed change device of transmission.
Conical pulley stepless speed change device of the present invention comprises: two transmission shafts that be arranged in parallel, small end correspondence with corresponding another cone pulley of big end of a cone pulley on diaxon is provided with two cone pulleys, wherein: the screw thread number of teeth on the conical surface of cone pulley body progressively increases along with the increase of diameter from small end to big end, on two cone pulleys, be connected with thread belt with opening mode, on the screw thread that is threadably engaged in cone pulley on the thread belt, thread belt can move relative to two cone pulley axis under snap ring promotes.
Snap ring one end of above-mentioned conical pulley stepless speed change device is actively socketed on the screw thread driving belt, and the other end and guide rod flexibly connect, and can move along guide rod, and guide rod is parallel with the cone pulley bus.
Advantage of the present invention is: owing to the screw thread number of teeth on the cone pulley surface on the conical pulley stepless speed change device holds the increase along with diameter to increase from the cone pulley small end to big, when the thread belt that meshes on the cone pulley that be arranged in parallel in two correspondences when cone pulley moves axially and rotate, then realize stepless change.Fricton-tight poor, transmission is accurate, driving torque the is big effect of stepless speed variator have so just been realized.
Further describe the present invention below in conjunction with example.
Fig. 1 is the External view of line thread cone pulley.
Fig. 2 cooperates sketch for thread belt.
Fig. 3 is the conical pulley stepless speed change device schematic diagram.
Fig. 4 is the cooperation sketch of oblique line screw thread cone pulley.
Among Fig. 1: on the cone surface, make to have identical thread form and along the screw thread m of cone generatrices direction from the small end circumference in equal parts to big end, like this, pitch between per two screw threads will be along with screw thread the diameter from small end to big end increase and increase, be equal to mutually with small end pitch for satisfying the big end pitch of cone, then has identical pitch with small end in big end processing, the screw thread of identical thread form inserts from small end and extends between the two adjacent screw threads of coming, the thread profile of inserting must form the contraction of thread from the big end of cone to small end, and its serrated end is tangent with the screw thread that stretches to big end from small end successively.
The straight forming method of above-mentioned line thread cone pulley is: the local thread form that mills out small end tooth number with profiling cutter along cone pulley body generatrix direction earlier, turn around again from the big processing method that mills out tooth form to small end of holding, can produce along the line thread of cone generatrices direction, be plastic use then after technologies such as fine finishing and heat treatment, the line thread that this method is made, its tooth distance, tooth height equate, owing to be cone, add man-hour and be again parallel direction along bus, thus from the big end of cone to small end must form the shrinkage phenomenon of tooth and become tooth count poor.The cone angle of this cone pulley body can require to change between 30-80 ° according to velocity ratio, and tooth is apart from determining between 0.5-5mm that on demand thread segment is shaped as triangle, and pressure angle is 20 °.
Among Fig. 2: be processed with vertically and the identical screw thread of cone pulley thread surface shape, the thread engagement on its screw thread and cone pulley surface at curve spiral shell pearl 5 external peripheral surfaces.Be processed with a through hole on the longitudinal center line of curve spiral shell pearl 5, several curve spiral shell pearls 5 be connected into a ring screw driving belt 3 with flexible steel wire.Wherein each spiral shell pearl 5 can be moved with center, endless belt work axle, can rotate around self axis again.
Above-mentioned screw thread driving belt also can be made of by the bulk that hinges connects several, on each contiguous block inboard all have with cone pulley on identical screw thread.When cone pulley rotates, realize the transmission of moment on the screw thread that is threadably engaged in cone pulley on the block screw thread driving belt.
Among Fig. 3: two identical cone pulleys are combined as one group, press the method for small end to big end, make two cone pulley axis installations parallel to each other, with the big end of the small end of ring screw driving belt 3 usefulness open type transmission principles and cone pulley 1 initiatively and the driven cone pulley connection that is nested, screw thread on its driving belt 3 and cone pulley bus thread surface mesh closely.
Make the initiative taper wheel when cone pulley 1, press N
1When self axis rotates, by thereon tooth be with screw thread driving belt 3 on the tooth engagement, just drive driving belt 3 and make moving movement along self axial direction, driving driven cone pulley 2 by driving belt 3 again rotates, thereby outputting power and motion on driven shaft, because driving belt 3 is mounted to " open type ", so the sense of rotation of driving and driven cone pulley is identical.
In order to quicken easily or to slow down, two collars 4 are installed in two force sides of driving belt 3.The collar 4 under external force, driving driving belt 3 moves as straight line with Vk along the cone pulley direction, because of the tooth at cone pulley different-diameter place is counted difference, like this when driving belt 3 whenever moves a tooth difference, the engagement tooth number that just changes once with driving and driven cone pulley has promptly changed the velocity ratio of driving and driven cone pulley, thereby has changed the output speed and the moment of torsion of driven cone pulley.And then realization stepless change.
The cone pulley of above-mentioned stepless speed variator can be processed into the oblique screw thread cone pulley as Fig. 4, such cone pulley, and its tooth is apart between 0.5-5mm, and 20 ° of pressure angles, tooth sectional shape are triangle, and helixangle is generally 20-30 °, adds man-hour oblique angle φ and is no more than 2.5 °.And screw thread form, the helix angle on curve spiral shell pearl 5 surfaces on the screw thread driving belt 3 of corresponding engagement are also identical with screw thread on the oblique screw thread cone.
Claims (6)
1, a kind of conical pulley stepless speed change device comprises: two transmission shafts that be arranged in parallel, small end correspondence with corresponding another cone pulley of big end of a cone pulley on diaxon is provided with two cone pulleys, it is characterized in that: the screw thread number of teeth on the conical surface of cone pulley body progressively increases along with the increase of diameter from small end to big end, on two cone pulleys, be connected with thread belt (3) with opening mode, on the screw thread that is threadably engaged in cone pulley on the thread belt (3), thread belt can move axially by relative two cone pulleys under the drive of snap ring (4).
2, according to the described conical pulley stepless speed change device of claim 1, it is characterized in that snap ring (4) one ends are actively socketed on the screw thread driving belt (3), the other end and guide rod flexibly connect, and can move along guide rod, and guide rod is parallel with the cone pulley bus.
3, according to the described conical pulley stepless speed change device of claim 1, it is characterized in that: screw thread driving belt (3) is serially connected on the flexible steel wire successively by several surperficial threaded spiral shell pearls (5) to be formed.
4, according to the described conical pulley stepless speed change device of claim 1, it is characterized in that: the sectional shape of the screw thread on the cone pulley is a triangle.
5,, it is characterized in that the big end pitch of cone pulley is equal to mutually with small end pitch according to the described conical pulley stepless speed change device of claim 1.
6,, it is characterized in that screw thread driving belt (3) is made of by the bulk that hinges connects several according to the described conical pulley stepless speed change device of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97109147A CN1063840C (en) | 1997-06-20 | 1997-06-20 | Conical pulley stepless speed change device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97109147A CN1063840C (en) | 1997-06-20 | 1997-06-20 | Conical pulley stepless speed change device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1203329A true CN1203329A (en) | 1998-12-30 |
| CN1063840C CN1063840C (en) | 2001-03-28 |
Family
ID=5170960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97109147A Expired - Fee Related CN1063840C (en) | 1997-06-20 | 1997-06-20 | Conical pulley stepless speed change device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1063840C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423393A (en) * | 2012-05-18 | 2013-12-04 | 黄家军 | Continuously variable transmission |
| CN109430009A (en) * | 2018-11-02 | 2019-03-08 | 温州锦瑞建设有限公司 | A kind of municipal administration treegarden irrigation equipment |
| CN110566493A (en) * | 2019-09-11 | 2019-12-13 | 中国工商银行股份有限公司 | Variable frequency compressor, centrifugal water chilling unit, control method and temperature adjusting system |
| CN110584942A (en) * | 2019-10-14 | 2019-12-20 | 汤兰玲 | Hysteroscope for gynecological examination |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2181596Y (en) * | 1993-09-17 | 1994-11-02 | 赖筱松 | Mechanical variable drive |
-
1997
- 1997-06-20 CN CN97109147A patent/CN1063840C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423393A (en) * | 2012-05-18 | 2013-12-04 | 黄家军 | Continuously variable transmission |
| CN109430009A (en) * | 2018-11-02 | 2019-03-08 | 温州锦瑞建设有限公司 | A kind of municipal administration treegarden irrigation equipment |
| CN109430009B (en) * | 2018-11-02 | 2020-12-11 | 温州锦瑞建设有限公司 | Municipal garden irrigation equipment |
| CN110566493A (en) * | 2019-09-11 | 2019-12-13 | 中国工商银行股份有限公司 | Variable frequency compressor, centrifugal water chilling unit, control method and temperature adjusting system |
| CN110584942A (en) * | 2019-10-14 | 2019-12-20 | 汤兰玲 | Hysteroscope for gynecological examination |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1063840C (en) | 2001-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0472431A2 (en) | Twin conical screw extruder | |
| US4781656A (en) | Variable speed power transmission pulley and system | |
| US4680985A (en) | Continuously variable transmission with epicyclic constant mesh gearing | |
| CN1063840C (en) | Conical pulley stepless speed change device | |
| US4739671A (en) | Tapered worm | |
| US4641492A (en) | Rope-twisting machine for making ropes | |
| US5953957A (en) | Vehicle window drive system and method | |
| EP0717819B1 (en) | Eccentric gear and process for making such a gear | |
| CN209977199U (en) | Stepless reducing wheel | |
| CN1786521A (en) | Coaxial type cam stepless pulsing speed changing device | |
| CA1174120A (en) | Apparatus for corrugating pipes | |
| CN1247181C (en) | Machine for pelletizing Chinese gerbal medicine | |
| CN2173882Y (en) | Planetary steel ball variable drive | |
| US5129276A (en) | Meshing gear members | |
| CN204961736U (en) | Stepless speed changer | |
| CN2599323Y (en) | Cart-wheel stepless speed variator | |
| CN208364719U (en) | Infinitely variable speed transmission and bicycle | |
| CN1529071A (en) | Mechanical Stepless speed transmission | |
| CN2127966Y (en) | Stepless speed variable device | |
| CN1051603C (en) | Speed varying mechanism and its processing method | |
| CN2367839Y (en) | Double-ring mechanical stepless automatic speed variator | |
| RU203312U1 (en) | VARIABLE SPEED DRIVE | |
| CN2193618Y (en) | Electric performer | |
| CN2200727Y (en) | Double transmission shifting speed reducer | |
| CN2231736Y (en) | V belt pulley with adjustable diameter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |