CN1831380A - Coaxial connecting rod stepless pulsation speed variator - Google Patents
Coaxial connecting rod stepless pulsation speed variator Download PDFInfo
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- CN1831380A CN1831380A CN 200510132746 CN200510132746A CN1831380A CN 1831380 A CN1831380 A CN 1831380A CN 200510132746 CN200510132746 CN 200510132746 CN 200510132746 A CN200510132746 A CN 200510132746A CN 1831380 A CN1831380 A CN 1831380A
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Abstract
The invention is a coaxial link rod stepless pulsating transmission, comprising case, input shaft, output shaft, gear train, overrunning clutch, eccentric wheel and a reduction ratio regulating component, where the input and output shafts are rotatablely installed on the case and on the same line, the input shaft is fixed with an eccentric wheel, the eccentricity of the eccentric wheel axially increases along one side of the case, the outer edge of the eccentric wheel is jacketed with a slide ring, the slide ring is jacketed with a link rod or at regular equiangular intervals jacketed with several link rods, the jacketing means that one end of each link rod is a circle in the plane of the link rod, and the circle is jacketed on the slide ring, the other end of each link rod is pivoted with a rocker, the other end of each rocker is fixed with the outer ring of an overrunning clutch, the inner ring of each overrunning clutch and a small gear are installed on a sleeve outside a pivot, each small gear engages with the same inner gear, and the inner gear is coaxially fixed with an output shaft.
Description
Technical field
The present invention relates to a kind of coaxial stepless pulsation speed variator, it can be used for a lot of occasions that require to have the stepless change transmission, for example machinery of industries such as textile manufacturing machine, printing machinery, light industry and machinery.
Background technique
The coaxial stepless pulsation speed variator has a variety of technological schemes in the prior art, is representative with the immediate prior art of the present invention with Chinese patent CN89201734.1 wherein.This patent disclosure a kind of swing block type pulsation mechanical stepless transmission, it realizes the stepless gear transmission of pulsed by means of eccentric disc and free wheel device.The advanceto returntime ratio that this speed changer has overcome main body mechanism in speed governing with the change of frame or crank length change, problem such as the pulsation curves of output shaft rotating speed presents irregular variation, mechanical efficiency is low, the main machine frame relativeness is constant when having speed change, forward and reverse output of all can working, the advanceto returntime ratio value is constant, exports advantages such as steady.But its complex structure, huge, the manufacture cost height, maintenance difficult, rotating ratio is regulated also relatively difficulty, and low-down rotating ratio (for example zero rotating ratio) especially can not be provided.
Summary of the invention
Purpose of the present invention is exactly for providing a kind of coaxial stepless pulsation speed variator in the industry, specifically a kind of coaxial connecting rod stepless pulsation speed variator, it can overcome above-mentioned deficiency of the prior art, not only simple and compact for structure, and make and maintenance is all simple and cost is low, especially it can provide low-down minimum speed ratio, for example, the minimum speed ratio is zero, that is, the scope of rotating ratio is from the zero maximum (top) speed ratio to design.
Coaxial connecting rod stepless pulsation speed variator of the present invention comprises housing, one input shaft, one output shaft, train of gearings, free wheel device, one eccentric wheel, an and cover speed ratio adjusting part, described input shaft and output shaft are rotatably installed on the housing respectively, diaxon is on the same straight line, it is characterized in that: be fixed with an eccentric wheel on the input shaft, this eccentric throw of eccentric increases to the side dullness of housing vertically, be set with a slip ring on the eccentric outer rim, eccentric wheel and slip ring axially on relative position can regulate, to change gear ratio, be socketed with a connecting rod on the slip ring, or etc. the some connecting rods of angular separation ground socket.Described socket is meant that an end of connecting rod is a circle in the plane of connecting rod, and this circle is enclosed within on the periphery of slip ring, and the two is fixed to one another in the axial direction; The quantity of connecting rod is different because of the needs of pulsation, and the amplitude requirement of pulsation is more little, and then the quantity of connecting rod is many more, otherwise the amplitude of pulsation is big more, and then the quantity of connecting rod is few more; The other end of each connecting rod and a fork are pivotally connected, and the other end of each fork is fixedlyed connected with the outer shroud of a free wheel device, thereby the bidirectional swinging of fork are become the intermittent type one-way rotation of free wheel device.The interior ring of each free wheel device and a small gear are installed on the outer sleeve of a single mandrel jointly, and each small gear all meshes with a common internal gear, and this internal gear is fixedlyed connected with output shaft is coaxial.
It should be appreciated by those skilled in the art, in the present invention, rotating ratio is relevant with the pivot angle size of fork, pivot angle is big more, speed ratio is big more, otherwise then more little, and the size of the pivot angle of the fork in the speed changer of the present invention is relevant with eccentric throw of eccentric, and slip ring is determining the size of throw of eccentric with respect to eccentric axial position.Therefore, speed ratio of the present invention is regulated by regulating slip ring and is realized with respect to eccentric axial position.In a preferred implementing form of the present invention, the gear ratio adjusting part comprise one with input shaft and the coaxial annulus of output shaft, the internal diameter of this annulus is greater than the diameter of axle of input shaft, be fixed on the card of this annulus to angular separation such as each axle, also be fixed with some on the card of this annulus along the equally distributed identical push rod of annulus, push rod is perpendicular to annulus, the other end of each push rod is fixed on one second annulus, this second annulus is same coaxial with input shaft and output shaft, its internal diameter is equally greater than the diameter of axle of input shaft, have outside thread on the periphery of this second annulus, itself and an internal thread that has the speed governing sleeve of internal thread mesh, and when making this sleeve of rotation, second annulus drives whole rotating ratio adjusting part and moves axially, move axially thereby drive slip ring, reach the purpose that changes speed ratio.In a preferred embodiment, the outside of speed governing sleeve is covered with a cover cap, and this cover cap is by being bolted on the described housing.
In a preferred embodiment, described eccentric minimum throw of eccentric is zero.So just, can realize zero gear ratio.
In the prior art, realize that above-mentioned throw of eccentric has much to the dull eccentric wheel that increases this function of a side of housing vertically.Inclined-plane pull bar speed regulating mechanism for example.In this mechanism, the change of eccentric wheel throw of eccentric realizes by an inclined-plane pull bar and a slide block.Brace can move vertically, makes slide block drive eccentric crop rotation and moves radially, thereby make that eccentric throw of eccentric obtains changing.
Preferred a kind of oblique circular cylinder formula eccentric wheel, this eccentric exterior contour is an oblique circular cylinder.In this form of implementation, described slip ring sleeve is on eccentric oblique circular cylinder side, and the side view of its center hole and oblique circular cylinder is coincide.That is, this center hole is an inclined hole that inclination is identical with oblique circular cylinder.If realize zero gear ratio, then can make the eccentric bottom surface of this oblique circular cylinder concentric with input shaft.Described oblique circular cylinder eccentric wheel can be made into integration with input shaft, also can make individually, and be installed on the input shaft.
Description of drawings
Below in conjunction with an illustrated embodiment explanation the present invention.
Fig. 1 is a width of cloth sectional view of a preferred embodiment of the present invention.
Fig. 2 is the sectional view of side embodiment illustrated in fig. 1.
Embodiment
A preferred embodiment of the present invention has been shown in the accompanying drawing.In this embodiment, train of gearings, free wheel device 6, an eccentric wheel 2 and a cover speed ratio adjusting part that coaxial connecting rod stepless pulsation speed variator of the present invention comprises housing, an input shaft 1, an output shaft 12, is made of small gear 7 and internal gear 10, described input shaft 1 and output shaft 12 are rotatably installed in respectively on the housing, and diaxon is on the same straight line.Be fixed with described eccentric wheel 2 on the input shaft 1, in the present embodiment, eccentric wheel 2 is an oblique circular cylinder formula eccentric wheel.Be set with a slip ring 3 on the eccentric outer rim.In this form of implementation, slip ring 3 is enclosed within on the oblique circular cylinder side of cam, and the side view of its center hole and oblique circular cylinder is coincide.That is, this center hole is an inclined hole that inclination is identical with oblique circular cylinder.
The some connecting rods of slip ring 3 first-class angular separation ground sockets, and the two is fixed to one another in the axial direction.Be provided with three connecting rods 4 in the present embodiment, be 120 degree angles between them and evenly distribute.The other end of each connecting rod 4 and a fork 5 are pivotally connected, the other end of each fork 5 is fixedlyed connected with the outer shroud of a free wheel device 6, thereby the bidirectional swinging of fork is become the intermittent type one-way rotation of free wheel device, the interior ring of each free wheel device 6 and a small gear 7 are installed on a single mandrel 8 sleeve 9 outward jointly, each small gear 7 all meshes with a common internal gear 10, this internal gear 10 is coaxial with output shaft 12, and fixedlys connected with output shaft 12 by key 11.
In this preferred implementing form, the gear ratio adjusting part comprise one with input shaft and the coaxial annulus 13 of output shaft, the internal diameter of this annulus is greater than the diameter of axle of input shaft 1, be fixed on the card of annulus 13 to angular separation such as each axle 8, also be fixed with some circumferential equally distributed identical guide rods 14 on the card of annulus 13 along annulus, each guide rod is perpendicular to annulus 13, the other end of each guide rod 14 is fixed on one second annulus 15, this second annulus is same coaxial with input shaft and output shaft, its internal diameter is equally greater than the diameter of axle of input shaft, have outside thread on the periphery of this second annulus, itself and an internal thread that has the speed governing sleeve 16 of internal thread mesh, and when making this sleeve of rotation, second annulus 15 drives whole rotating ratio adjusting part and moves axially, move axially thereby drive slip ring 3, reach the purpose that changes speed ratio.In this preferred embodiment, the outside of speed governing sleeve 16 is covered with a cover cap 17, and this cover cap is fixed on the described housing by bolt 18.
In this preferred embodiment, the right degree of eccentricity of described eccentric wheel 2 left-hand from figure increases gradually, and in the leftmost side, a bottom surface of oblique circular cylinder cam 2 is concentric with input shaft 1, and therefore, the minimum degree of eccentricity is zero, can realize zero gear ratio.
Those skilled in the art is not difficult to find out; coaxial connecting rod stepless pulsation speed variator of the present invention is not only simple in structure, compact; and variator ratio range is big; speed change is flexible; not only can be when shutting down speed change; also can be when machine run speed change, the such manual speed change of embodiment also can realize mechanical speed change as shown.
Claims (8)
1. coaxial connecting rod stepless pulsation speed variator, comprise housing, one input shaft, one output shaft, train of gearings, free wheel device, one eccentric wheel, an and cover speed ratio adjusting part, described input shaft and output shaft are rotatably installed on the housing respectively, diaxon is on the same straight line, it is characterized in that: be fixed with an eccentric wheel on the input shaft, this eccentric degree of eccentricity increases to the side dullness of housing vertically, suit one slip ring on the eccentric outer rim, eccentric wheel and slip ring axially on relative position can regulate, to change gear ratio, slip ring is socketed with a connecting rod outward, or etc. the some connecting rods of angular separation ground socket, described socket is meant that an end of connecting rod is a circle in the plane of connecting rod, this circle is enclosed within on the periphery of slip ring, and the two is fixed to one another in the axial direction; The quantity of connecting rod is different because of the needs of pulsation, and the amplitude requirement of pulsation is low more, and then the quantity of connecting rod is many more; Otherwise the amplitude requirement of pulsation is high more, and then the quantity of fork is few more; The other end of each connecting rod and a fork are pivotally connected, the other end of each fork is fixedlyed connected with the outer shroud of a free wheel device, thereby the bidirectional swinging of fork is become the intermittent type one-way rotation of free wheel device, the interior ring of each free wheel device and a small gear are installed on the outer sleeve of a single mandrel jointly, each small gear all meshes with a common internal gear, and this internal gear is fixedlyed connected with output shaft is coaxial.
2. coaxial connecting rod stepless pulsation speed variator as claimed in claim 1, it is characterized in that: the gear ratio adjusting part comprise one with input shaft and the coaxial annulus of output shaft, the internal diameter of this annulus is greater than the diameter of axle of input shaft, be fixed on the card of this annulus to angular separation such as each axle, also be fixed with some on the card of this annulus along the equally distributed identical push rod of annulus, push rod is perpendicular to annulus, the other end of each push rod is fixed on one second annulus, this second annulus is same coaxial with input shaft and output shaft, its internal diameter is equally greater than the diameter of axle of input shaft, have outside thread on the periphery of this second annulus, itself and an internal thread that has the speed governing sleeve of internal thread mesh, and when making this sleeve of rotation, second annulus drives whole rotating ratio adjusting part and moves axially, move axially thereby drive slip ring, reach the purpose that changes speed ratio.
3. coaxial connecting rod stepless pulsation speed variator as claimed in claim 2 is characterized in that: described eccentric wheel is a kind of oblique circular cylinder formula eccentric wheel, and described slip ring sleeve is on eccentric oblique circular cylinder side, and the side view of its center hole and oblique circular cylinder is coincide.
4. coaxial connecting rod stepless pulsation speed variator as claimed in claim 3 is characterized in that: the eccentric bottom surface of described oblique circular cylinder is concentric with input shaft.
5. as the coaxial connecting rod stepless pulsation speed variator of claim 3 or 4, it is characterized in that: described oblique circular cylinder eccentric wheel and input shaft are made into integration.
6. as the coaxial connecting rod stepless pulsation speed variator of claim 3 or 4, it is characterized in that: described oblique circular cylinder eccentric wheel is made individually.
7. coaxial connecting rod stepless pulsation speed variator as claimed in claim 5 is characterized in that: the outside of speed governing sleeve is covered with a cover cap, and this cover cap is by being bolted on the described housing.
8. coaxial connecting rod stepless pulsation speed variator as claimed in claim 6 is characterized in that: the outside of speed governing sleeve is covered with a cover cap, and this cover cap is by being bolted on the described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101327469A CN100353089C (en) | 2005-12-28 | 2005-12-28 | Coaxial connecting rod stepless pulsation speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101327469A CN100353089C (en) | 2005-12-28 | 2005-12-28 | Coaxial connecting rod stepless pulsation speed variator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1831380A true CN1831380A (en) | 2006-09-13 |
| CN100353089C CN100353089C (en) | 2007-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101327469A Expired - Fee Related CN100353089C (en) | 2005-12-28 | 2005-12-28 | Coaxial connecting rod stepless pulsation speed variator |
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| CN (1) | CN100353089C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010142067A1 (en) * | 2009-06-08 | 2010-12-16 | 北京联合大学 | Rotary swash plate and rod type continuously variable transmission |
| CN102537264A (en) * | 2012-01-19 | 2012-07-04 | 北京联合大学 | Speed ratio adjusting mechanism of stepless transmission |
| CN101477082B (en) * | 2008-09-18 | 2012-07-25 | 中国计量学院机电工程学院 | Eccentric wheel oscillating rod linear acceleration apparatus |
| CN105526332A (en) * | 2015-12-23 | 2016-04-27 | 北京联合大学 | Internal engaging swash plate rotation type continuously variable transmission |
| CN110375052A (en) * | 2019-07-12 | 2019-10-25 | 南京能益泰科建材科技有限公司 | A kind of transmission mechanism and the spray equipment with transmission mechanism |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696720B (en) * | 2009-05-27 | 2012-01-04 | 北京联合大学 | Swash plate guide-rod stepless transmission |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2052849U (en) * | 1989-07-15 | 1990-02-14 | 锦州工学院 | Cylindrical cam swing block stepless speed changer |
| CN1062590A (en) * | 1990-12-22 | 1992-07-08 | 贺定轩 | Engaged stepless speed variators |
| JPH09210168A (en) * | 1996-01-31 | 1997-08-12 | Isuzu Motors Ltd | Troidal type continuously variable transmission |
| CN1260454A (en) * | 1998-08-16 | 2000-07-19 | 张玉良 | Elastic pulsating stepless sped change drive method |
-
2005
- 2005-12-28 CN CNB2005101327469A patent/CN100353089C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477082B (en) * | 2008-09-18 | 2012-07-25 | 中国计量学院机电工程学院 | Eccentric wheel oscillating rod linear acceleration apparatus |
| WO2010142067A1 (en) * | 2009-06-08 | 2010-12-16 | 北京联合大学 | Rotary swash plate and rod type continuously variable transmission |
| CN102537264A (en) * | 2012-01-19 | 2012-07-04 | 北京联合大学 | Speed ratio adjusting mechanism of stepless transmission |
| CN102537264B (en) * | 2012-01-19 | 2014-04-23 | 北京联合大学 | Speed ratio adjusting mechanism of stepless transmission |
| CN105526332A (en) * | 2015-12-23 | 2016-04-27 | 北京联合大学 | Internal engaging swash plate rotation type continuously variable transmission |
| CN110375052A (en) * | 2019-07-12 | 2019-10-25 | 南京能益泰科建材科技有限公司 | A kind of transmission mechanism and the spray equipment with transmission mechanism |
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| Publication number | Publication date |
|---|---|
| CN100353089C (en) | 2007-12-05 |
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Granted publication date: 20071205 Termination date: 20111228 |