CN102537264B - Speed ratio adjusting mechanism of stepless transmission - Google Patents
Speed ratio adjusting mechanism of stepless transmission Download PDFInfo
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- CN102537264B CN102537264B CN201210017053.5A CN201210017053A CN102537264B CN 102537264 B CN102537264 B CN 102537264B CN 201210017053 A CN201210017053 A CN 201210017053A CN 102537264 B CN102537264 B CN 102537264B
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Abstract
The invention relates to a speed ratio adjusting mechanism of a stepless transmission. The speed ratio adjusting mechanism comprises a box body, an input part (an input shaft, a pin shaft, a screw nail, a rectangular shaft, a round cam and a thrust bearing), an output part (a pin shaft R, a roller, a swinging rod and a small shaft), a speed control part (a speed regulation hand shank, a sleeve, a rolling bearing, a close locked nut, and a left end cap of the box body), wherein one end of the input shaft is connected with a rectangular shaft the cross section of which is a rectangular, and the rectangular shaft is divided into an A section and a B section; the center line of the A section is coincided with a shaft line of the input shaft, the center line of the B section and the center line of the A section form a certain included angle, and the B section is inserted an oblique rectangular hole which is provided with a center line on a center position of the round cam; the other end of the round cam is connected with a swinging rod, the size of swing amplitude of the swinging rod determines the size of speed ratio, and an eccentric distance determines the size of the swing amplitude of the swinging rod when the round cam is rotated; and a relative position of the input shaft and the round cam determines the size of the eccentric distance of the round cam, and the speed ratio is regulated through the relative position of the input shaft and the round cam is regulated.
Description
Invention field
The present invention relates to transmission mechanism, relate in particular to a kind of speed ratio adjusting mechanism of stepless transmission.
Background technique
Impulse stepless gear box has extensive use at industrial fields such as weaving, chemical industry, light industry, plastics, papermaking, food, pharmacy, simultaneously at its functional reliability, speed adjustable range, mode of speed regulation, the aspect such as simple in structure, has new innovation and creation always.
Application number is that 200910210482.2 Chinese invention patent application discloses a kind of swash plate guide-rod rotary stepless transmission, this stepless speed variator is comprised of driving mechanism, output mechanism, casing, described driving mechanism is adjustable by inclination and the guide rod isogonism setting parallel with at least three of rotating swash plate forms, this guide rod one end is with helical gear that can one-way rotation, the other end withstands in swash plate card, and can slide in swash plate card; Described output mechanism is by the output shaft of one-way rotation and be fixed in the large helical gear engaging with helical gear in driving mechanism on output shaft and form.This stepless speed variator has utilized plungers pump plunger principle, is a kind of novel stepless speed variator without easily damaged parts, has improved the reliability of speed changer, has reduced maintenance cost.But for the structure of above-mentioned swash plate guide-rod rotary stepless transmission, regulating sleeve and swash plate are all along with the synchronized rotation of input shaft.So, if will regulate the speed ratio of speed changer, only when input shaft stops operating, can manipulate regulating sleeve; In addition, the inertial force that regulating sleeve time rotational produces also can affect the rotational position of regulating sleeve, and then has reduced the degree of regulation of transmission gear ratio.
Application number is that 89201734.1 Chinese invention patent application discloses the fast formula pulsation of a kind of pendulum mechanical stepless transmission, and it is by means of eccentric disc and the stepless gear transmission of free wheel device pulsed.The advanceto returntime ratio that this speed changer has overcome main unit mechanism in speed governing with the change of frame or crank length change, the problem such as the pulsation curves of output shaft rotating speed is irregular variation, mechanical efficiency is low, while having speed change, main machine frame relativeness is constant, forward and reverse output of all can working, advanceto returntime ratio value is constant, exports the advantages such as steady.But its complex structure, huge, manufacture cost is high, maintenance difficult, rotating ratio regulates also more difficult, and low-down rotating ratio (for example zero rotating ratio) especially can not be provided.
Summary of the invention
The object of the invention is to solve above-mentioned deficiency of the prior art, a kind of speed ratio adjusting mechanism of stepless transmission is provided, it is not only simple and compact for structure, manufacture and maintenance all simple cost are low, and low-down rotating ratio can be provided, for example, minimum speed ratio is zero, the scope that is rotating ratio is from zero maximum value to design, also can carry out speed ratio adjusting simultaneously under input shaft rotation situation.
For achieving the above object, the technical solution used in the present invention is as follows: a kind of speed ratio adjusting mechanism of stepless transmission, it comprises casing, input part, speed adjusting device and output.Input part comprises input shaft, bearing pin, screw, rectangular shaft, circular cam, thrust-bearing.Described output comprises bearing pin R, roller, fork, little axle.Described speed adjusting portion is divided the left end cap that comprises speed-regulating handle, sleeve, rolling bearing, tight split nut, casing.One end of described input shaft connects described rectangular shaft, the other end of described rectangular shaft is through the center portion of described circular cam, one end of described circular cam is located by described thrust-bearing, the other end of described circular cam is located by described bearing pin R, on described bearing pin R, described roller is installed, described bearing pin R is arranged in the jatharapanvartanasana groove of described cam one side together with described roller.The other end of described bearing pin R is connected with fork one end, and the other end of described fork is connected with described little axle.
Preferably, one end of described input shaft is hollow shaft, the cross section of hollow parts is that outer wall is circular, inwall is rectangle, described input shaft hollow parts, on outer wall, have a pin shaft hole and a screw hole at least, described pin shaft hole and described screw hole are arranged in a row along the axial direction of described input shaft, and can pass described bearing pin and described screw respectively.
Preferably, the cross section of described rectangular shaft is rectangle, and the center line of described rectangular shaft forms by two sections,
Be respectively A section and B section, described A section is connected with described input shaft, and described B section is connected with described circular cam.
Preferably, the center line of A section of described rectangular shaft and the dead in line of described input shaft, have a pin shaft hole and a screw hole at least in the A section of described rectangular shaft, and this pin shaft hole and screw hole are arranged in a row along the centerline direction of the A section of rectangular shaft.
Preferably, the shape of the A section of described rectangular shaft is identical with the hollow shape of described input shaft with base dimension, the A section of described rectangular shaft is arranged on the hollow the inside of described input shaft, the gapped matching relationship of A section of the hollow and described rectangular shaft of this input shaft.Pin shaft hole in the A section of the pin shaft hole on described input shaft and described rectangular shaft overlaps, and the screw hole in the A section of the screw hole on described input shaft and described rectangular shaft overlaps.Described input shaft is fixedly connected with the A section of described rectangular shaft with screw by described bearing pin.
Preferably, the center line of the B section of described rectangular shaft and the center line of A section are certain angle.
Preferably, it is the rectangular opening tilting that the middle position of described circular cam has center line, and this rectangular opening shape is identical with the shape of the B section of rectangular shaft with base dimension, and the center line in hole is parallel with the center line of the B section of rectangular shaft.
Preferably, the B section of described rectangular shaft is arranged on the rectangular opening the inside of cam, the gapped matching relationship of B section of this hole and described rectangular shaft.
Preferably, described circular cam is located by described thrust-bearing near one end of input shaft, and the other end of described thrust-bearing is fixedly welded on described casing.Prevent that described circular cam from moving to the direction of described input shaft in rotation process or nonrotational process.
Preferably, described circular cam is located by described bearing pin R away from one end of input shaft, prevent that circular cam from moving to the direction away from described input shaft in rotation process or nonrotational process, one end of bearing pin R is provided with described roller, and described bearing pin R is arranged in the jatharapanvartanasana groove of described circular cam together with described roller.
Preferably, the other end of described bearing pin R is flexibly connected with described fork, and there is a circular hole described fork one end, and described bearing pin R is arranged in the circular hole of described fork one end, and described bearing pin R and described fork can not depart from each other.
Preferably, the other end of described fork is connected with described little axle, and fork can be around the axis oscillating of described little axle, and the two ends of described little axle are arranged in the supported hole on casing.
Because the B section of described rectangular shaft is inserted in the rectangular opening of described circular cam, and the center line of the B of described rectangular shaft end and the center line of A section are certain angle, so when the A of described rectangular shaft section is during close to described circular cam, the geometrical center of described circular cam overlaps with the center line of the A section of described rectangular shaft, be the geometrical center of described circular cam and the dead in line of described input shaft, when now described input shaft rotates, drive described circular cam to rotate, the geometrical center of described circular cam overlaps with the center of rotation of circular cam, therefore described circular cam can circular runout, can there is not circular runout in the jatharapanvartanasana groove on circular cam yet, thereby described fork can not produce swing, when described input shaft is when moving away from described circular cam direction, described circular cam can not be followed input shaft and move owing to there being the location of described thrust-bearing, so described input shaft and described rectangular shaft will with described circular cam generation relative displacement, because the center line of B section of described rectangular shaft and the center line of A section are certain angle, cause circular cam to move along its diametric(al), now the geometrical center of circular cam departs from the center of rotation of circular cam, the distance departing from is called throw of eccentric, the size of described throw of eccentric is relevant with the displacement distance of described input shaft.When described input shaft rotates, under the impact of throw of eccentric, described circular cam and on jatharapanvartanasana groove will produce circular runout, thereby make described fork start the axis oscillating around described little axle by bearing pin R and roller effect.
In a kind of speed ratio adjusting mechanism of stepless transmission of the present invention, rotating ratio is relevant with the pivot angle size of fork, and pivot angle is larger, and speed ratio is larger, otherwise speed ratio is less.The size of pivot angle of the fork in a kind of speed ratio adjusting mechanism of stepless transmission of the present invention is relevant with the throw of eccentric of circular cam, and input shaft the size of the throw of eccentric of circular cam with respect to the determining positions of circular cam, when input shaft nearer with respect to circular cam distance, speed ratio is less, far away with respect to circular cam distance when input shaft, speed ratio is larger.Therefore, speed ratio of the present invention regulates by regulating input shaft to realize with respect to circular cam position.
In a preferred implementing form of the present invention, input shaft is that speed ratio regulates by regulating described speed-regulating handle to realize with respect to circular cam position regulation.
Preferably, described regulating handle is fixedly welded on the outer wall of described sleeve.
Preferably, the inwall of described sleeve one end has screw thread.
Preferably, the outer wall of the left end cap of described casing has screw thread.
Preferably, the outer wall thread of the inner thread of described sleeve and the left end cap of casing screws.
Preferably, the other end of described sleeve is provided with described rolling bearing, and described rolling bearing is arranged on again on described input shaft.Described sleeve is flexibly connected with described input shaft by described rolling bearing, the axis of sleeve and the dead in line of input shaft, and input shaft can rotate along its axis with respect to sleeve, and in other direction can not there is relative movement in input shaft and sleeve.
Preferably, the inwall of described tight split nut has screw thread, and the screw thread of the left end cap of tight split nut and casing screws.
Rotate described regulating handle and can make described sleeve rotate around the axis of input shaft, the outer wall thread of the inner thread of sleeve and the left end cap of casing screws, and therefore sleeve, when the axis of input shaft rotates, moves left and right along this axis again.One end of sleeve is connected with input shaft, thereby when sleeve moves left and right, rolling bearing and input shaft move left and right with sleeve simultaneously, and the relative position of input shaft and circular cam changes, and the throw of eccentric of circular cam also changes thereupon.When sleeve moves to behind a certain position (being that speed ratio is adjusted to specified value), rotate described locking nut, make its compression sleeve vertically, thereby sleeve is locked on this position.
The advantage of this kind of speed ratio adjusting mechanism of stepless transmission of the present invention is:
1, simple and compact for structure, manufacture and maintenance are all simple, and cost is low;
2, adopt manual governing handle to regulate the throw of eccentric of circular cam, can dynamic speed adjustment, also can static speed governing;
3, because the throw of eccentric of circular cam can be zero, so minimum speed ratio can be zero.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, describe in more detail according to a kind of speed ratio adjusting mechanism of stepless transmission of the present invention.
Fig. 1 is according to the structural drawing of a preferred embodiment of a kind of speed ratio adjusting mechanism of stepless transmission of the present invention.
Fig. 2 be shown in Fig. 1 according to the partial structurtes side view of a preferred embodiment of a kind of speed ratio adjusting mechanism of stepless transmission of the present invention.
In figure, be labeled as: input shaft 1, rectangular shaft 2, bearing pin 3, screw 4, circular cam 5, thrust-bearing 6,
The left end cap 14 of casing 7, bearing pin R8, roller 9, fork 10, little axle 11, speed-regulating handle 12, sleeve 13, casing, rolling bearing 15, tight split nut 16, jatharapanvartanasana groove 17, supported hole 18.
Embodiment
In order to understand better the present invention; below in conjunction with accompanying drawing, one preferred embodiment of a kind of speed ratio adjusting mechanism of stepless transmission of the present invention is described in detail; following description is only exemplary and indicative, should not have any restriction to protection scope of the present invention.
A kind of speed ratio adjusting mechanism of stepless transmission, it comprises casing, input part, speed adjusting device and output.Input part comprises input shaft 1, bearing pin 3, screw 4, rectangular shaft 2, circular cam 5, thrust-bearing 6.Described output comprises bearing pin R8, roller 9, fork 10, little axle 11.Described speed adjusting portion is divided the left end cap 14 that comprises speed-regulating handle 12, sleeve 13, rolling bearing 15, tight split nut 16, casing.
As shown in Figure 1, one end of input shaft 1 is hollow shaft, the cross section of hollow parts is that outer wall is circular, inwall is rectangle, on the outer wall of the hollow parts of input shaft 1, have a pin shaft hole and a screw hole at least, pin shaft hole and screw hole are arranged in a row along the axial direction of input shaft 1, and can pass bearing pin 3 and screw 4 respectively.
The cross section of rectangular shaft 2 is rectangle, and the center line of rectangular shaft 2 forms by two sections, is respectively A section and B section, and A section is connected with input shaft 1, and B section is connected with circular cam 5.The center line of the A section of rectangular shaft 2 and the dead in line of input shaft 1, have a pin shaft hole and a screw hole at least in the A section of rectangular shaft 2, and this pin shaft hole and screw hole are arranged in a row along the centerline direction of the A section of rectangular shaft.The shape of the A section of rectangular shaft 2 is identical with the hollow shape of input shaft 1 with base dimension, and the A section of rectangular shaft 2 is arranged on the hollow the inside of input shaft 1, the gapped matching relationship of A section of the hollow and rectangular shaft 2 of input shaft 1.Pin shaft hole in the A section of the pin shaft hole on input shaft 1 and rectangular shaft 2 overlaps, and the screw hole in the A section of the screw hole on input shaft 1 and rectangular shaft 2 overlaps.Input shaft 1 is fixedly connected with the A section of rectangular shaft 2 with screw 4 by bearing pin 3.The center line of the B section of rectangular shaft 2 and the center line of A section are certain angle.It is the rectangular opening tilting that the middle position of circular cam 5 has center line, this rectangular opening shape is identical with the shape of the B section of rectangular shaft 2 with base dimension, the center line of rectangular opening is parallel with the center line of the B section of rectangular shaft 2, the B section of rectangular shaft 2 is arranged on the rectangular opening the inside of cam, the gapped matching relationship of B section of this hole and rectangular shaft 2.Circular cam 5 is located by thrust-bearing 6 near one end of input shaft 1, and the other end of thrust-bearing 6 is fixedly welded on casing 7, prevents that circular cam 5 from moving to the direction near input shaft 1 in rotation process or nonrotational process.Circular cam 5 is located by bearing pin R8 away from one end of input shaft 1, prevent circular cam 5 in rotation process or nonrotational process to moving away from the direction of input shaft 1, one end of bearing pin R8 is provided with roller 9, and bearing pin R8 is arranged on 17 li of the jatharapanvartanasana grooves of circular cam 5 together with roller 9.The other end of bearing pin R8 is flexibly connected with fork 10, and there is a circular hole fork 10 one end, and bearing pin R8 is arranged in the circular hole of fork 10 one end, and bearing pin R8 and fork 10 can not depart from each other.The other end of fork 10 is connected with little axle 11, and fork 10 can be around the axis oscillating of little axle 11, and the two ends of little axle 11 are arranged in the supported hole 18 on casing 7.Regulating handle 12 is fixedly welded on the outer wall of sleeve 13, and the inwall of sleeve 13 one end has screw thread, and the outer wall of the left end cap 14 of casing has screw thread, and the outer wall thread of the inner thread of sleeve 13 and the left end cap of casing 14 screws.The other end of sleeve 13 is provided with rolling bearing 15, and rolling bearing 15 is arranged on again on input shaft 1.Sleeve 13 is flexibly connected with input shaft 1 by rolling bearing 15, the dead in line of the axis of sleeve 13 and input shaft 1, and input shaft 1 can rotate along its axis with respect to sleeve 13, and in other direction can not there is relative movement with sleeve 13 in input shaft 1.The inwall of tight split nut 16 has screw thread, and tight split nut 16 screws with the screw thread of the left end cap 14 of casing.
As shown in Figure 2, have jatharapanvartanasana groove 17 on circular cam 5, bearing pin R8 is arranged on 17 li of the jatharapanvartanasana grooves of circular cam 5 together with roller 9.The other end of bearing pin R8 is flexibly connected with fork 10, and there is a circular hole fork 10 one end, and bearing pin R8 is arranged in the circular hole of fork 10 one end, and bearing pin R8 and fork 10 can not depart from each other.The other end of fork 10 is connected with little axle 11, and fork 10 can be around the axis oscillating of little axle 11.
Illustrate the working procedure of the diagram most preferred embodiment of a kind of speed ratio adjusting mechanism of stepless transmission of the present invention below.Because the B section of rectangular shaft 2 is inserted in the rectangular opening of described circular cam 5, and the center line of the B of described rectangular shaft 2 end and the center line of A section are certain angle, so when the A of rectangular shaft 2 section is during close to circular cam 5, the geometrical center of circular cam 5 overlaps with the center line of the A section of rectangular shaft 2, be the geometrical center of circular cam 5 and the dead in line of input shaft 1, when now input shaft 1 rotates, drive circular cam 5 to rotate, the geometrical center of circular cam 5 overlaps with the center of rotation of circular cam 5, therefore circular cam 5 can circular runout, can there is not circular runout in the jatharapanvartanasana groove 17 on circular cam 5 yet, thereby fork 10 can not produce swing.When input shaft 1 is when moving away from circular cam 5 directions, circular cam 5 can not be followed input shaft 1 and move owing to there being the location of thrust-bearing 6, so will there is relative displacement with circular cam 5 in input shaft 1 and rectangular shaft 5, because the center line of B section of rectangular shaft 2 and the center line of A section are certain angle, cause circular cam 5 to move along its diametric(al), now the geometrical center of circular cam 5 departs from the center of rotation of circular cam 5, the distance departing from is called throw of eccentric, and the size of throw of eccentric is relevant with the displacement distance of input shaft 1.When input shaft 1 rotates, under the impact of throw of eccentric, circular cam 5 and on jatharapanvartanasana groove 17 will produce circular runout, thereby make fork 10 start the axis oscillating around little axle 11 by bearing pin R8 and roller 9 effects.
In a kind of speed ratio adjusting mechanism of stepless transmission of the present invention, rotating ratio is relevant with the pivot angle size of fork 10, and pivot angle is larger, and speed ratio is larger, otherwise speed ratio is less.The size of the pivot angle of the fork 10 in a kind of speed ratio adjusting mechanism of stepless transmission of the present invention is relevant with the throw of eccentric of circular cam 5, and input shaft 1 size of the throw of eccentric of circular cam 5 with respect to the determining positions of circular cam 5, when input shaft 1 with respect to circular cam apart from 5 from close to more, speed ratio is less, far away with respect to circular cam 5 distances when input shaft 1, speed ratio is larger.Therefore, speed ratio adjusting of the present invention is by regulating input shaft 1 to realize with respect to the position of circular cam 5.
Rotate regulating handle 12 and can make sleeve 13 rotate around the axis of input shaft 1, the outer wall thread of the inner thread of sleeve 13 and the left end cap of casing 14 screws, and therefore sleeve 13, when the axis of input shaft 1 rotates, moves left and right along this axis again.One end of sleeve 13 is connected with input shaft 1, thereby when sleeve 13 moves left and right, rolling bearing 15 and input shaft 1 move left and right with sleeve 13 simultaneously, input shaft 1 changes with the relative position of circular cam 5, and the throw of eccentric of circular cam 5 also changes thereupon.When sleeve 13 moves to behind a certain position (being that speed ratio is adjusted to specified value), rotation lock nut 16, makes its compression sleeve 13 vertically, thereby sleeve 13 is locked on this position, makes speed ratio be fixed on this numerical value.
It should be noted that; embodiment recited above is described the preferred embodiment of the present invention; not the scope of the invention is limited; design under spiritual prerequisite not departing from the present invention; various distortion and improvement that the common engineers and technicians in related domain make technological scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.
Identical with any invention, basis of the present invention is known prior art, its each constituent element also comes from prior art, in order to make this specification simple and clear, these constituent elements are not had to all matters, big and small ground and describe in detail one by one, those skilled in the art know its cloud naturally having read after this specification.Reading after this specification, those skilled in the art can believe, the result that a large amount of creative works of inventor have been condensed in the present invention who consists of the combination of these prior aries.
Those skilled in the art are not difficult to find out equally, the present invention is improvements over the prior art, it is the combination that the technical problem for existing in solution prior art is carried out these key elements of the prior art, this combination a large amount of creative work that condensed is the crystallization of a large amount of theoretical researches of inventor and scientific experiment.Before not reading the present invention, those skilled in the art are obviously not easy to expect each scheme of the present invention, and are reading after this specification, and those skilled in the art needn't pay creative work again can realize basic technical scheme of the present invention.
Claims (17)
1. a speed ratio adjusting mechanism of stepless transmission, it comprises casing, input part, output and speed regulate part, and described input part comprises input shaft, bearing pin, screw, circular cam, thrust-bearing, described output comprises bearing pin R, roller, fork, little axle, it is characterized in that: described input part also comprises rectangular shaft, the cross section of described rectangular shaft is rectangle, the center line of described rectangular shaft is divided into A section and B section, the A section of described rectangular shaft is connected with input shaft, the center line of the center line of the B section of described rectangular shaft and the A section of described rectangular shaft is in a certain angle, it is the rectangular opening tilting that described circular cam middle position has center line, the B section of described rectangular shaft is arranged in the rectangular opening of described circular cam, described fork is connected with described circular cam with roller by bearing pin R, the other end of described fork is connected with described little axle, the two ends of described little axle are arranged in the supported hole on casing, described speed adjusting portion is divided and is comprised speed-regulating handle, sleeve, rolling bearing, tight split nut, the left end cap of casing, described speed-regulating handle is fixed on described sleeve, and described sleeve one end is connected with the left end cap of described casing, and the other end of described sleeve is provided with described rolling bearing, and described rolling bearing is arranged on again on described input shaft.
2. a kind of speed ratio adjusting mechanism of stepless transmission according to claim 1, it is characterized in that: one end of described input shaft is hollow shaft, the cross section of hollow parts is that outer wall is circular, inwall is rectangle, has a pin shaft hole and a screw hole on the outer wall of the hollow parts of described input shaft at least.
3. a kind of speed ratio adjusting mechanism of stepless transmission according to claim 2, is characterized in that: described pin shaft hole and described screw hole are arranged in a row along the axial direction of described input shaft, and can pass described bearing pin and described screw respectively.
4. according to a kind of speed ratio adjusting mechanism of stepless transmission described in claim 2 or 3, it is characterized in that: the shape of the A section of described rectangular shaft is identical with the hollow shape of described input shaft with base dimension, the A section of described rectangular shaft is arranged on the hollow the inside of described input shaft, the gapped matching relationship of A section of the hollow and described rectangular shaft of described input shaft, the center line of A section of described rectangular shaft and the dead in line of described input shaft.
5. a kind of speed ratio adjusting mechanism of stepless transmission according to claim 4, it is characterized in that: in the A section of described rectangular shaft, have a pin shaft hole and a screw hole at least, described pin shaft hole and screw hole are arranged in a row along the centerline direction of the A section of rectangular shaft, and the pin shaft hole in the A section of the pin shaft hole on described input shaft and described rectangular shaft overlaps, screw hole in the A section of the screw hole on described input shaft and described rectangular shaft overlaps, and described input shaft is fixedly connected with the A section of described rectangular shaft with screw by described bearing pin.
6. a kind of speed ratio adjusting mechanism of stepless transmission according to claim 1 or 5, it is characterized in that: it is the rectangular opening tilting that the middle position of described circular cam has center line, this rectangular opening shape is identical with the shape of the B section of rectangular shaft with base dimension, and the center line in hole is parallel with the center line of the B section of rectangular shaft.
7. a kind of speed ratio adjusting mechanism of stepless transmission according to claim 6, is characterized in that: the B section of described rectangular shaft is arranged on the rectangular opening the inside of cam, the gapped matching relationship of B section of this hole and described rectangular shaft.
8. a kind of speed ratio adjusting mechanism of stepless transmission according to claim 7, is characterized in that: described circular cam is located by described thrust-bearing near one end of input shaft, and the other end of described thrust-bearing is fixedly welded on described casing.
9. a kind of speed ratio adjusting mechanism of stepless transmission according to claim 8, it is characterized in that: described circular cam is located by described bearing pin R away from one end of input shaft, one end of bearing pin R is provided with described roller, and described bearing pin R is arranged in the jatharapanvartanasana groove of described circular cam together with described roller.
10. a kind of speed ratio adjusting mechanism of stepless transmission according to claim 9, it is characterized in that: the other end of described bearing pin R is flexibly connected with described fork, there is a circular hole described fork one end, described bearing pin R is arranged in the circular hole of described fork one end, and described bearing pin R and described fork can not depart from each other.
11. a kind of speed ratio adjusting mechanism of stepless transmissions according to claim 10, is characterized in that: the other end of described fork is connected with described little axle, and fork can be around the axis oscillating of described little axle.
12. a kind of speed ratio adjusting mechanism of stepless transmissions according to claim 11, is characterized in that: described regulating handle is fixedly welded on the outer wall of described sleeve.
13. a kind of speed ratio adjusting mechanism of stepless transmissions according to claim 12, is characterized in that: the inwall of described sleeve one end has screw thread.
14. a kind of speed ratio adjusting mechanism of stepless transmissions according to claim 13, is characterized in that: the outer wall of the left end cap of described casing has screw thread.
15. a kind of speed ratio adjusting mechanism of stepless transmissions according to claim 14, is characterized in that: the outer wall thread of the inner thread of described sleeve and the left end cap of casing screws.
16. a kind of speed ratio adjusting mechanism of stepless transmissions according to claim 15, it is characterized in that: the other end of described sleeve is provided with described rolling bearing, described rolling bearing is arranged on again on described input shaft, described sleeve is flexibly connected with described input shaft by described rolling bearing, the axis of sleeve and the dead in line of input shaft, input shaft can rotate along its axis with respect to sleeve, and in other direction, relative movement can not occur for input shaft and sleeve.
17. according to a kind of speed ratio adjusting mechanism of stepless transmission described in any one in claim 14-16, it is characterized in that: the inwall of described tight split nut has screw thread, and the left end cap screw thread of tight split nut and casing screws.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210017053.5A CN102537264B (en) | 2012-01-19 | 2012-01-19 | Speed ratio adjusting mechanism of stepless transmission |
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| CN201210017053.5A CN102537264B (en) | 2012-01-19 | 2012-01-19 | Speed ratio adjusting mechanism of stepless transmission |
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| CN102537264A CN102537264A (en) | 2012-07-04 |
| CN102537264B true CN102537264B (en) | 2014-04-23 |
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| CN109282006B (en) * | 2017-07-21 | 2022-09-06 | 沈阳市实丰农业机械厂 | Coaxial pulse type stepless speed change equipment |
| CN113397959B (en) * | 2021-07-28 | 2022-10-14 | 黑龙江中医药大学附属第一医院（黑龙江中医药大学第一临床医学院） | Acupuncture-simulated massage rehabilitation physiotherapy device |
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| JP4674979B2 (en) * | 2001-02-23 | 2011-04-20 | 川崎重工業株式会社 | V belt type continuously variable transmission for rough terrain vehicle |
| US6931316B2 (en) * | 2002-06-05 | 2005-08-16 | Nissan Motor Co., Ltd. | Toroidal continuously variable transmission control apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786521A (en) * | 2005-12-28 | 2006-06-14 | 北京联合大学 | Coaxial type cam stepless pulsing speed changing device |
| CN1831380A (en) * | 2005-12-28 | 2006-09-13 | 北京联合大学 | Coaxial connecting rod stepless pulsation speed variator |
| CN101696721A (en) * | 2009-05-27 | 2010-04-21 | 北京联合大学 | Swash plate guide-rod rotary stepless transmission |
| CN202441870U (en) * | 2012-01-19 | 2012-09-19 | 北京联合大学 | Novel transmission speed ratio adjusting device |
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|---|---|
| CN102537264A (en) | 2012-07-04 |
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