CN201027957Y - Transmission reducing taper disk of high-power stepless speed variator and stepless speed transmission - Google Patents
Transmission reducing taper disk of high-power stepless speed variator and stepless speed transmission Download PDFInfo
- Publication number
- CN201027957Y CN201027957Y CNU2007201408653U CN200720140865U CN201027957Y CN 201027957 Y CN201027957 Y CN 201027957Y CN U2007201408653 U CNU2007201408653 U CN U2007201408653U CN 200720140865 U CN200720140865 U CN 200720140865U CN 201027957 Y CN201027957 Y CN 201027957Y
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- curved surface
- space curved
- sector space
- diameter changing
- cone body
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Abstract
The utility model relates to a large power vehicle non-class transmission driving diameter changing taper plate and a driving mechanism belonging to the non-class transmission technical field, which is characterized in that the taper plate is of regular taper body shape. A sector space curved surface and a regular taper body contour are distributed on a circular arc plane in sequence. A generatrix of every sector space curved surface is parallel with the generatrix of every regular taper body contour. The included angle of any generatrix of every sector space curved surface and the central line of the regular taper body is equal. The sector space curved surface is any space curved surface of convex contour and concave curved surface which is different from the regular taper body contour. The sector space curved surface and the regular taper body contour of two taper plates are regularly arranged on the same spline shaft, thereby forming the large power vehicle non-class transmission driving mechanism with the driving belt or chain surrounded inside two taper plane angle. The utility model has the advantages that the sliding between the driving members is avoided, the driving efficiency and power are improved and the life-span is prolonged.
Description
Technical field
The transmission diameter changing cone disk of big power variable speed unit and infinitely variable speed gearing belong to automobile-used stepless variable transmission technique field.
Background technique
It is not only fuel-efficient and acceleration performance is good that the automobile of mechanical continuously-variable transmission is housed, but present stepless speed variator of vehicle all is directly to come transferring power by frictional force, wherein main dirivig member such as driving belt or chain, reducing transmission awl dish etc., exist the restriction that friction factor and unit bear pressure, can not transmit more high-power, its transmission efficiency and functional reliability can not satisfy the requirement of automotive performance, thereby only limit to use on the automobile of the medium and small discharge capacity of minority.
Reduce and the slide relative when avoiding running between the stepless speed variator dirivig member, but be to improve stepless speed variator of vehicle transmission efficiency and transmission power, the effective means that prolongs its working life.
Summary of the invention
The purpose of this utility model is; A kind of transmission efficiency height, long service life are provided and can be used for transmitting more powerful metal tape or transmission diameter changing cone disk and big power variable speed driving mechanism that chain-type continuously variable transmission is used.
The transmission diameter changing cone disk of big power variable speed unit described in the utility model is characterized in that, described transmission diameter changing cone disk is the normal cone bodily form, at conical surface the distributing a plurality of sector space curved surfaces and the normal cone body cambered surface at interval successively, wherein:
The bus of forming described each sector space curved surface parallels with the bus of adjacent normal cone body cambered surface;
Any bus of forming described each sector space curved surface all equates with the angle that described normal cone body center line constitutes;
Described each sector space curved surface be with described variform concave arc of normal cone body arc surfaced or convex arc curved surface in a kind of space curved surface.Described sector space curved surface and normal cone body cambered surface are unequal on area.
Infinitely variable speed gearing described in the utility model is characterized in that, contains: four transmission diameter changing cone disks, input shaft, output shaft and driving belts, wherein:
Described each transmission diameter changing cone disk is the normal cone bodily form, at conical surface the distributing a plurality of sector space curved surfaces and the normal cone body cambered surface at interval successively, wherein:
The bus of forming described each sector space curved surface parallels with the bus of adjacent normal cone body cambered surface;
Any bus of forming described each sector space curved surface all equates with the angle that described normal cone body center line constitutes;
Described each sector space curved surface is concave arc different with described normal cone body arc shape or a kind of space curved surface in the convex arc curved surface;
Input shaft and output shaft, when the sector space curved surface on per two described transmission diameter changing cone disk conical surfaces, normal cone body cambered surface separately mutually alignment be installed on same input shaft or the output shaft time, described four transmission diameter changing cone disks, input shaft, output shaft just and the driving belt that is looped around in described four transmission diameter changing cone disk cornerites form an infinitely variable speed gearing.
Use proof: it can accomplish the end in view.In embodiment test, used originally and can only transmitting torque to be the driving belt of 180Nm, transmitting torque has surpassed 470Nm and band, dish skidding have not occurred in the stand test, but transmitting torque has surpassed present all stepless speed variator of vehicle, has proved the feasibility that this diameter changing cone disk can transmitting large torque.
Description of drawings:
The longitudinal section of Fig. 1, infinitely variable speed gearing described in the utility model:
1a is before the speed change; After the 1b speed change.
The front view 2a of Fig. 2, infinitely variable speed gearing described in the utility model,
A-A sectional view 2b.
The principle schematic of Fig. 3, transmission diameter changing cone disk described in the utility model:
3a, transmission diameter changing cone disk longitudinal sectional view,
Enlarged diagram C, D that the sector space curved surface parallels with the bus of normal cone body cambered surface;
The schematic representation of the angle equalization that 3b, any bus of sector space curved surface and normal cone body center line constitute.
One of annexation schematic representation of Fig. 4, transmission diameter changing cone disk described in the utility model and driving belt:
4a, plan view, 4b, B-B are to sectional view.
Two of the annexation schematic representation of Fig. 5, transmission diameter changing cone disk described in the utility model and driving belt:
5a, annexation front view, the side view of 5b, driving belt 4,
The front view of 5c, wedge metal piece 2.
The explanation of accompanying drawing sign:
11～14: transmission diameter changing cone disk 1,21～214: wedge metal piece 2;
3: splined shaft, 4: driving belt,
51～54: normal cone body cambered surface, 61,62: the sector space curved surface,
7: metal ring, 8: output shaft,
9: the axis projection size of sector space surface bus,
10: the axis projection size of normal cone body cambered surface bus,
Δ: the axis projection size of the axis projection size of sector space surface bus and normal cone body cambered surface bus poor.
F1, F2: the tension force of driving belt 4, F3, F4: the circumferential barrier force of 61,62 pairs of driving belts 4 of sector space curved surface,
θ: the cornerite of driving belt 4 on the conical surface of transmission diameter changing cone disk 1.
Embodiment:
Speed-change process of the present utility model is identical with traditional metal tape or chain type stepless change transmission, make metal tape or chain 21,214, and 22,215 on the different contact radius of the two pairs of diameter changing cone disks, realize infinite variable speed (see figure 1) by moving axially diameter changing cone disk 11～14
The steel band that uses in embodiment test is the driving belt that Dutch VDT company produces, this driving belt 4 is wedge metal piece 2 and the two groups of (see figure 5)s that metal ring 7 combines by hundreds of, metal ring 7 embeds in the breach of both sides, described slug 2 top, hundreds of sluies are joined together, formed a flexible drive band 4, traditional stepless speed variator is that the wedge shape surface of contact by driving belt contacts by frictional force with awl dish normal cone body cambered surface and comes transferring power.
The utility model is different with traditional band or chain-type continuously variable transmission friction driving, and it is the innovation by the way of contact between driving belt 4 or chain and the diameter changing cone disk 11～14, has realized the transmission of power of wedging power between driving belt 4 or chain and the awl dish 11～14.Key technology of the present invention is: a plurality of sector space curved surfaces 61,62 and normal cone body cambered surface 51,52 spaced apart successively on the conical surface of diameter changing cone disk circular cone 1, the shape of this diameter changing cone disk 1 is the normal cone stage body, and each sector space curved surface 61,62 and normal cone body cambered surface 51,52 have following feature:
1, the bus of described each sector space curved surface parallels with composition normal cone body cambered surface 51,52 corresponding bus lines and (sees enlarged diagram C, D among Fig. 3 a, solid line is a normal cone body cambered surface bus, dotted line is the sector space surface bus, and the distance of two lines in different radii two ends equates and be parallel);
2, any bus (seeing the dotted line among Fig. 3 b) on the described space curved surface must all equate with the angle that normal cone body center line constitutes;
3, the space curved surface that meets above-mentioned 1,2 features simultaneously can be formed by spill different with normal cone body cambered surface or a kind of space curved surface in the convex;
4, the diameter changing cone disk conical surface of being made up of normal cone body cambered surface and sector space curved surface is applicable to the various types of metallic band and the metal chain of stepless speed variator special use.
Its working principle is: the diameter changing cone disk axis hole has been manufactured spline (seeing Fig. 2 b), two corresponding being installed on the same splined shaft 3 of diameter changing cone disk 11,12 conical surfaces, the sector space curved surface 61,62 of two diameter changing cone disks, normal cone body cambered surface 51,52 are alignment mutually separately.Be looped around driving belt 4 in two diameter changing cone disk cornerites or chain under the effect of self tension force F1, F2 (see figure 4), its contact radius of adaptively changing on each curved surface of in band or chain wrap angle, (seeing Fig. 4 b, driving belt or chain in the circular arc line segment).Because two diameter changing cone disk sector space curved surfaces 61, axis projection size between 62 is greater than two normal cone body cambered surfaces 51, axis projection size between 52 (is seen Fig. 2 a), so, be in sector space curved surface 61, the slug 2 of the driving belt 4 on 62 or the contact radius R2 of chain link are less than and are in normal cone body cambered surface 51, the contact radius R1 of driving belt 4 sluies 2 or chain link (sees Fig. 4 on 52, b), therefore, be looped around two sector space curved surfaces 61, driving belt 4 sluies 23～213 or chain link on 62 (are seen Fig. 4, b, to be looped around wherein one group of driving belt slug on the sector space curved surface or chain link is example) both sides wedge shape surface of contact all be subjected to former and later two normal cone body cambered surfaces 51, the circumferential barrier force F3 of 52 axial projection curved surfaces, F4, be in two sector space curved surfaces 61 simultaneously, driving belt 4 sluies 2 or chain link on 62 also are subjected to driving belt or chain tension force F1, the constraint of F2, it can not be slided outside radius of living in, thereby can not cross the axial projection curved surface that both sides stop its circumferential slip, therefore, circumferential active force between driving belt 4 or chain and the diameter changing cone disk 1 has just formed from wedging power operating mode, make both constant speed, rotate in the same way, power is effectively transmitted.
Facts have proved: this when driving belt or chain can be effectively avoided in the transmission of wedging power operating mode in work with two diameter changing cone disks between the circumferential slide relative of appearance easily, thereby can realize with or chain and awl dish between the high pulling torque transmission.
Ask for an interview Fig. 1-5, have formed circumferential diameter changing cone disk and each parts interconnect function each other of sector space curved surface and normal cone body cambered surface and concern as above-mentioned from the wedging performance.Whole variable ratio drive system is made up of traditional twin shaft four cone disk types symmetry speed regulating mechanism, power is splined shaft 3 inputs by input shaft, through two initiatively diameter changing cone disks 11,12 be passed to by driving belt 4 or chain after two driven diameter changing cone disks 13,14 carry out speed change, at last by output shaft 8 outputting powers.
A fixing diameter changing cone disk and an axially movable diameter changing cone disk are all arranged on input shaft and the output shaft, axially movable diameter changing cone disk is controlled its gear shifting operation by existing ripe stepless speed variator (ECVT) electricity, liquid control system on two axles, this technology is ripe known technology, does not repeat them here.
Claims (4)
1. the transmission diameter changing cone disk of high-power stepless speed variator of vehicle is characterized in that, described transmission diameter changing cone disk is the normal cone bodily form, at conical surface the distributing a plurality of sector space curved surfaces and the normal cone body cambered surface at interval successively, wherein:
The bus of forming described each sector space curved surface parallels with the bus of adjacent normal cone body cambered surface;
Any bus of forming described each sector space curved surface all equates with the angle that described normal cone body center line constitutes;
Described each sector space curved surface is concave arc different with described normal cone body arc shape or a kind of space curved surface in the convex arc curved surface.
2. the transmission diameter changing cone disk of high-power stepless speed variator of vehicle according to claim 1 is characterized in that, described sector space curved surface and normal cone body cambered surface are unequal on area.
3. infinitely variable speed gearing is characterized in that, contains:
Four transmission diameter changing cone disks, pto input shaft and driving belts, wherein:
Described each transmission diameter changing cone disk is the normal cone bodily form, at conical surface the distributing a plurality of sector space curved surfaces and the normal cone body cambered surface at interval successively, wherein:
The bus of forming described each sector space curved surface parallels with the bus of adjacent normal cone body cambered surface;
Any bus of forming described each sector space curved surface all equates with the angle that described normal cone body center line constitutes;
Described each sector space curved surface is concave arc different with described normal cone body arc shape or a kind of space curved surface in the convex arc curved surface;
Input shaft and output shaft, when the sector space curved surface on per two described transmission diameter changing cone disk conical surfaces, normal cone body cambered surface separately mutually alignment be installed on same input shaft or the output shaft time, described four transmission diameter changing cone disks, input shaft, output shaft just and the driving belt or the chain that are looped around in described four transmission diameter changing cone disk cornerites form an infinitely variable speed gearing.
4. infinitely variable speed gearing according to claim 3 is characterized in that described input shaft is a splined shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201408653U CN201027957Y (en) | 2007-03-26 | 2007-03-26 | Transmission reducing taper disk of high-power stepless speed variator and stepless speed transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201408653U CN201027957Y (en) | 2007-03-26 | 2007-03-26 | Transmission reducing taper disk of high-power stepless speed variator and stepless speed transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027957Y true CN201027957Y (en) | 2008-02-27 |
Family
ID=39132167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201408653U Expired - Fee Related CN201027957Y (en) | 2007-03-26 | 2007-03-26 | Transmission reducing taper disk of high-power stepless speed variator and stepless speed transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027957Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499842A (en) * | 2018-12-19 | 2019-03-22 | 万花秀 | A kind of energy-saving roller sieve |
-
2007
- 2007-03-26 CN CNU2007201408653U patent/CN201027957Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499842A (en) * | 2018-12-19 | 2019-03-22 | 万花秀 | A kind of energy-saving roller sieve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 Termination date: 20100326 |