CN2052849U - Cylindrical cam swing block stepless speed changer - Google Patents
Cylindrical cam swing block stepless speed changer Download PDFInfo
- Publication number
- CN2052849U CN2052849U CN 89214041 CN89214041U CN2052849U CN 2052849 U CN2052849 U CN 2052849U CN 89214041 CN89214041 CN 89214041 CN 89214041 U CN89214041 U CN 89214041U CN 2052849 U CN2052849 U CN 2052849U
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- CN
- China
- Prior art keywords
- cylindrical cam
- input shaft
- swinging block
- stepless speed
- utility
- 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.)
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Abstract
The utility model discloses a cylindrical cam swing block stepless speed changer, which overcomes the problems that a mechanical impulse stepless speed changer has low transmission power and unbalanced transmission in the prior art; the speed regulation is difficult to be quantitatively controlled. The utility model comprises a driving mechanism, a regulating mechanism, and a dynamic balance mechanism. Because the change of the length of a crank does not need a complete set of gear train regulating mechanism, the utility model has the advantages of simple structure and small volume. The regulating mechanism can quantitatively control the rotational speed of an output shaft under the static state or the dynamic state and have reversal self-locking performance and convenient speed regulation. The utility model is characterized in that a dynamic balance mechanism with a high speed shaft is provided; the transmission is stable and reliable. The dynamic balance problem of the high speed shaft can be fundamentally solved.
Description
The utility model belongs to a kind of mechanical type pulsating movement stepless speed change device, particularly a kind of cylindrical cam swinging block formula stepless speed variator.
The prior mechanical impulse stepless gear box is pressed the speed regulating mechanism classification, has two kinds usually: a kind of is to change frame length, as the WMB type stepless speed variator and the DBL type stepless speed variator of China's production; Another kind is to change crank length, as the S and the SM type stepless speed variator of German Democratic Republic's production.The former is because frame is floated, and bearing capacity is little, thereby transmission power is little; The latter is owing to the speed regulating mechanism employing is dead axle and differential compound gear train, thereby complex structure, speed governing is difficult for quantitatively control, and special distinct issues are, owing to want speed change must change crank length, and the dynamic equilibrium problems of the high speed shaft that change crank length is brought fundamentally solves.
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of simple in structure, and stable drive is reliable, and speed governing is convenient, and the big mechanical type impulse stepless gear box of transmission power.
The utility model is achieved in that
Constitute driving mechanism by the Multiphase Parallel crank swinging block that connects firmly together by rotation guide plate and input shaft, cylindrical cam is installed on input shaft, controlled the crank axle sleeve in the slidercrank mechanism that respectively rotates of speed governing effect by the roller bearing pin in the spiral chute of cylindrical cam, make the crank axle sleeve rotate a speed discrepancy relative to input shaft, in crank axle sleeve outer rim annular connecting rod is installed, said annular connecting rod connects a ring slider by bearing pin, outside at ring slider is equipped with pendulum guide rod, and pendulum guide rod links together with the form of swinging block with sliding pair again.Said swinging block is installed on the mono-directional overrun clutch, and said mono-directional overrun clutch links together by key and output shaft again.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is elaborated:
As shown in Figures 1 and 2, the utility model is made up of driving mechanism, speed regulating mechanism and dynamic balancer.
Said driving mechanism is made of the Multiphase Parallel slidercrank mechanism, its concrete structure is, there are the bearing outer ring that is used for supporting input shaft, output shaft of a casting, the casing 18(of bearing support also to be frame), two side plate middle parts have two bearings mounted through holes about casing 18, and the input shaft 1 that is connected with motor is installed in the bearing of two corresponding through holes in front; In the bearing of two corresponding through holes of back, output shaft 9 is installed.On input shaft 1, connecting with taper pin 2 can be with the cylindrical cam 14 of input shaft 1 rotation, in the outside of cylindrical cam 14 with roller bearing pin 15 be connected with crank axle sleeve 16, on the axle sleeve of crank axle sleeve 16 and relatively the conical bore place of input shaft 1 is connected with the 2-4 guide plate 3 that rotates by taper pin 2, in the outer rim of crank axle sleeve 16 slidercrank mechanism that annular connecting rod 17 and ring slider 4 are formed is installed also; Pendulum guide rod 5 is installed on the outer rim of ring slider 4.On output shaft 9, connect a mono-directional overrun clutch 7 with key 8, in mono-directional overrun clutch 7 outer rims swinging block 6 is installed.Pendulum guide rod 5 on the input shaft 1 and the swinging block 6 on the output shaft 9 link together with the form of sliding pair.When driven by motor input shaft 1 rotates, the slidercrank mechanism that is fixed together with input shaft 1 rotates thereupon and passes to the swinging block 6 on the output shaft 9 and make the swinging block swing by the rotation of pendulum guide rod 5 with input shaft 1, by mono-directional overrun clutch 7, key 8 swing of swinging block 6 is become the unidirectional rotation at intermittence of output shaft 9 again, and the motion that alternately overlaps of Multiphase Parallel crank rocker mechanism then makes output shaft 9 obtain unidirectional continuous pulsation and rotates.
Said speed regulating mechanism is by the slidercrank mechanism that can link, cylindrical cam mechanism and screw rod shifting fork mechanism constitute, its concrete structure is, on said input shaft 1, be with a cylindrical cam 14 as shown in Figure 3, said cylindrical cam 14 has a spiral chute and forms in 90 ° of-180 ° of scopes in hollow cylinder surface, connect crank axle sleeve 16 with roller bearing pin 15 in the spiral chute on cylindrical cam 14, in crank axle sleeve 16 outer rims annular connecting rod 17 is installed, annular connecting rod 17 protrudes a long handle, this long handle and ring slider 4 link together with the form of sliding pair, owing to be connected with ring slider 4 by the long handle that protrudes, institute is so that there is a free gap between annular connecting rod 17 and the ring slider 4, make relatively rotate more flexible.On the axial position of input shaft 1, also have two conical bores, having two slotted holes on the conical bore opposite position on cylindrical cam 14 surfaces and the input shaft 1, in this slotted hole, cylindrical cam 14 and input shaft 1 are linked together with taper pin 2, cylindrical cam 14 promptly can with input shaft 1 high speed rotating together, input shaft 1 moves axially in its slotted hole range relatively again.Left end at cylindrical cam 14 also has a straight trough, in this straight trough, float a shift fork 13 is installed, the shifting fork bar top of shift fork 13 and top respectively are processed with a tapped hole, a speed governing pointer is installed in the tapped hole at top, a screw rod 12 is installed in the tapped hole on top, the left end of screw rod 12 connects a handle 10 by key 11, be equipped with on the surface of contact of handle 10 and casing 18 and be used for locking and spring self-locking action, the left end of handle 10 is fastened on handle 10 on the screw rod 12 with screw.Joystick 10 can be controlled moving axially of cylindrical cam 14 by screw rod 12 and shift fork 13.In addition, the screw pair that is formed by the nut of screw rod 12 and shift fork 13 can also play reverse self-locking action, promptly limit cylindrical cam 14 in transmission relatively input shaft 1 do axial motion.When cylindrical cam 14 moves axially, crank axle sleeve 16 by 15 each the phase slidercrank mechanism of control of the roller bearing pin in the spiral chute of cylindrical cam 14 rotates a speed discrepancy relative to input shaft 1, the rotation guide plate 3 that is connected firmly together by connecting rod 17 control slide blocks, 4 edges and input shaft 1 is made the crank length of radial motion with change driving crank cranking block mechanism again, thereby has realized static or dynamic speed governing.
Said dynamic balancer is two cover phase places to be installed become 180 ° slidercrank mechanism on the guide plate 3 that whenever rotates, when difference in rotation appears in crank axle sleeve 16 relative input shafts 1, two slidercrank mechanisms that are enclosed within 180 ° of directions are synchronous symmetric motion, thereby have realized the transient equiliblium that input shaft 1 is on-stream.In order to realize the whole dynamic balance for beam of input shaft 1, according to the revolving meber dynamic balance principle, can be with each the phase crank block on the input shaft 1 by location arrangements shown in Figure 4, wherein (a) is the two-phase arrangement; (b) be the three-phase arrangement; (c) be four phase arrangements.
The utility model has the advantage of that changing crank length does not need a whole set of train to transfer Speed mechanism, thus simple in structure, and volume is little; Speed adjusting gear can quantitatively be controlled the output shaft rotating speed in static or running, and has the reverse self-locking performance, thereby speed governing is convenient; Particularly be provided with the high speed shaft dynamic balance mechanism, stable drive is reliable, has fundamentally solved the dynamic equilibrium problem of high speed shaft; Frame is motionless during also owing to speed governing, so applicable to high-power transmission.
Claims (5)
1, a kind of cylindrical cam swinging block formula stepless speed variator, by driving mechanism, speed regulating mechanism and dynamic balancer are formed, include a casing (being frame) 18, be installed in input shaft 1 and output shaft 9 on the casing 18, it is characterized in that, on input shaft 1 axial position, have two conical bores, connecting firmly with taper pin 2 in this conical bore promptly can be with input shaft 1 high speed rotating, input shaft 1 is made axially movable cylindrical cam 14 relatively again, connects by crank axle sleeve 16 with roller bearing pin 15 in the outside of cylindrical cam 14, the slidercrank mechanism that annular connecting rod 17 and ring slider 4 are formed; Outer rim at ring slider 4 is installed pendulum guide rod 5; Connect a mono-directional overrun clutch 7 with key 8 on output shaft 9, in mono-directional overrun clutch 7 outer rims swinging block 6 is installed, pendulum guide rod 5 on the said input shaft 1 and the swinging block 6 on the output shaft link together with the form of sliding pair; Left end at cylindrical cam 14 also has a straight trough, in this straight trough, float a shift fork 13 is installed, a screw rod 12 is installed in the tapped hole on shift fork 13 tops, and the left end of screw rod 12 connects a handle 10 by key 11, is connected with screw between handle 10 and the screw rod 12.
2, according to the said cylindrical cam swinging block of claim 1 formula stepless speed variator, it is characterized in that, on the axle sleeve of crank axle sleeve 16 and relatively the conical bore place of input shaft 1 is equipped with the 2-4 guide plate 3 that rotates, and installs on the guide plate 3 that whenever rotates and can realize that the phase place of synchronous symmetric motion becomes 180 ° slidercrank mechanism.
3, according to claim 1 or 2 said cylindrical cam swinging block formula stepless speed variators, it is characterized in that, the spiral chute of said cylindrical cam 14 is opened in 90 ° of-180 ° of scopes of periphery, has two taper pins that can be installed in relatively on the input shaft 1 and make axially movable slotted hole on cylindrical cam 14 and the corresponding position of the conical bore of input shaft 1.
4, according to the said cylindrical cam swinging block of claim 3 formula stepless speed variator, it is characterized in that, the shifting fork bar top of the unsteady shift fork of installing 13 also is processed with a tapped hole in cylindrical cam 14 straight troughs, and a speed governing pointer is installed in the tapped hole at this top.
5, according to the said cylindrical cam swinging block of claim 1 formula stepless speed variator, it is characterized in that, said annular connecting rod 17 protrudes a long handle, and annular connecting rod 17 is connected with ring slider 4 by this long handle, and a free gap is arranged between annular connecting rod 17 and the ring slider 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89214041 CN2052849U (en) | 1989-07-15 | 1989-07-15 | Cylindrical cam swing block stepless speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89214041 CN2052849U (en) | 1989-07-15 | 1989-07-15 | Cylindrical cam swing block stepless speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2052849U true CN2052849U (en) | 1990-02-14 |
Family
ID=4869896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89214041 Withdrawn CN2052849U (en) | 1989-07-15 | 1989-07-15 | Cylindrical cam swing block stepless speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2052849U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100353089C (en) * | 2005-12-28 | 2007-12-05 | 北京联合大学 | Coaxial connecting rod stepless pulsation speed variator |
| CN100406777C (en) * | 2004-12-27 | 2008-07-30 | 刘海平 | Swing type steepless gear of slide block |
| CN104930181A (en) * | 2014-03-20 | 2015-09-23 | 本田技研工业株式会社 | Continuously variable transmission |
| CN104948697A (en) * | 2014-03-24 | 2015-09-30 | 本田技研工业株式会社 | Continuously variable transmission |
| CN105697708A (en) * | 2016-03-11 | 2016-06-22 | 湘潭大学 | Novel mechanical stepless speed change device |
-
1989
- 1989-07-15 CN CN 89214041 patent/CN2052849U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406777C (en) * | 2004-12-27 | 2008-07-30 | 刘海平 | Swing type steepless gear of slide block |
| CN100353089C (en) * | 2005-12-28 | 2007-12-05 | 北京联合大学 | Coaxial connecting rod stepless pulsation speed variator |
| CN104930181A (en) * | 2014-03-20 | 2015-09-23 | 本田技研工业株式会社 | Continuously variable transmission |
| CN104930181B (en) * | 2014-03-20 | 2017-04-12 | 本田技研工业株式会社 | Continuously variable transmission |
| CN104948697A (en) * | 2014-03-24 | 2015-09-30 | 本田技研工业株式会社 | Continuously variable transmission |
| CN105697708A (en) * | 2016-03-11 | 2016-06-22 | 湘潭大学 | Novel mechanical stepless speed change device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |