CN105276110A - Self-rotation-free traction type stepless speed changer - Google Patents
Self-rotation-free traction type stepless speed changer Download PDFInfo
- Publication number
- CN105276110A CN105276110A CN201510711076.XA CN201510711076A CN105276110A CN 105276110 A CN105276110 A CN 105276110A CN 201510711076 A CN201510711076 A CN 201510711076A CN 105276110 A CN105276110 A CN 105276110A
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- CN
- China
- Prior art keywords
- bevel gear
- jack shaft
- slide block
- guide rail
- mantle dish
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- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
Abstract
The invention provides a self-rotation-free traction type stepless speed changer. The self-rotation-free traction type stepless speed changer mainly comprises an input shaft, a driving roller, a first intermediate shaft, a second intermediate shaft, a first swing bearing, a second swing bearing, a first driven cone disc, a second driven cone disc, a first small bevel gear, a second bevel gear, a first sliding block, a second sliding block, a first guide rail, a second guide rail and a large bevel gear, wherein power is input by the input shaft, is transmitted by the input shaft, the driving roller, the driven cone disc and the small bevel gear and is finally output by the large bevel gear. The self-rotation-free traction type stepless speed changer is characterized in that cone tops of the two driven cone discs, a cone top of a dividing cone of the large bevel gear and a cone top of a dividing cone of the small bevel gear are folded at the same point; generatrixes of the driving roller and the two driven cone discs are single curves. The traction type stepless speed changer is free of self rotation in the driving process and has the advantages of being simple in structure, easy to manufacture, small in number of parts and high in driving efficiency.
Description
Technical field
The present invention relates to mechanical transmission fields, be specifically related to buncher.
Background technique
Vehicular transmission is the development trend in future to stepless change by step change.
Be widely used in stepless speed variator on automobile at present based on metal band type stepless speed variator.Metal band type stepless speed variator is applied in the car and is achieved good effect, but it has the deficiency of three aspects: one is that the cost of speed changer is higher, metal tape is formed by stacking by multiple steel disc, number of parts is many, to manufacturing, assembling and the requirement of material all very high, cause the cost of speed changer higher; Two be transmit moment less, metal band type stepless speed variator is by the friction torque transferring power between belt wheel and slug, carry-over moment must be subject to the restriction of pressure between metal tape and belt wheel working surface and surface friction coefficient, is difficult to realize high pulling torque and exports; Three is easily produce wearing and tearing between band and belt wheel, affects the working life of speed changer.Metal band type stepless speed variator is at present only for the car of middle small displacement.
Towed stepless speed variator is a kind of speed changer with wide application prospect, it is by initiative taper dish, power transmission roller, form from mantle dish, power roller does not directly contact with from mantle dish with initiative taper dish, one deck traction oil film is had between initiative taper dish and power roller, power roller and also have one deck traction oil film between mantle dish, power relies on the shear transfer of oil film.Because each force-transmitting member does not directly contact, towed stepless speed variator does not does not wear and tear.Compared with variable v-belt drive, towed stepless speed variator has the advantage that part is few, cost is low, larger torque is worn and torn, can be transmitted to nothing.In the SAE meeting that on March 7th, 2003 terminates in Di Te Tianjin, towed stepless speed variator is called IVT, and using its emphasis direction as the development of future automobile speed changer.
The traction oil film shape of towed stepless speed variator is a little ellipse, when transferring power, if the speed of each point is inconsistent in driving link and driven member and traction oil film Elliptical Contacts region, will cause the slip of oil film, misplace or tear, this phenomenon is called spin.The people such as University Of Chongqing professor Qin great Tong have carried out deeply systematically studying to whole ring surface and the towed stepless speed variator of semi-ring surface, result of study shows: spin is the maximum reason causing towed stepless speed variator power loss, and existing whole ring surface and the towed stepless speed variator of semi-ring surface cannot eliminate spin phenomenon.
For eliminating the spin loss of towed stepless speed variator, the people such as Sichuan University Li Qing great waves are to solve the method for the differential equation, obtain a kind of without spin variable-speed unit (public announcement of a patent application CN104776180A), this without spin variable-speed unit initiative taper dish and be logarithmic curve from the bus of mantle dish, in the process of speed governing, initiative taper dish and all will produce movement from mantle dish, power roller should produce rotation and produce movement again.Although this towed stepless speed variator eliminates spin, there is the difficulty of two aspects: one is the logarithmic curve of initiative taper dish and the bus complexity from mantle dish, manufactures more difficult; Two is that speed regulating control is cumbersome, and during speed governing, the existing rotation of power roller has movement again, initiative taper dish and also moving along its axis from mantle dish, and speed regulating control difficulty is larger.
In order to meet the automobile requirement more and more higher to speed changer, speed governing simple, easy to manufacture in the urgent need to a kind of structure is easily without the towed stepless speed variator of spin.
Summary of the invention
Object of the present invention: the deficiency overcoming existing towed stepless speed variator, provides that a kind of structure is simple, easy to manufacture, speed governing is towed without spin stepless speed variator easily.
For realizing goal of the invention, the technological scheme adopted is: a kind of without the towed stepless speed variator of spin, primarily of input shaft (1), drive roller (2), first from mantle dish (3a), second from mantle dish (3b), first jack shaft (4a), second jack shaft (4b), first slide block (5a), second slide block (5b), first guide rail (6a), second guide rail (6b), first bevel pinion (7a), second bevel pinion (7b), first gantry pillars (8a), second gantry pillars (8b) and bevel gear wheel (9) composition, power is inputted by input shaft (1), exported by bevel gear wheel (9), it is characterized in that: drive roller (2) is arranged on input shaft (1), drive roller (2) can move along the axis of input shaft (1), but it can not rotate relative to input shaft (1), first jack shaft (4a) is provided with first from mantle dish (3a) and the first bevel pinion (7a), first from mantle dish (3a), the first bevel pinion (7a) and the first jack shaft (4a) for being fixedly connected with, three can not relative movement, second jack shaft (4b) is provided with second from mantle dish (3b) and the second bevel pinion (7b), second from mantle dish (3b), the second bevel pinion (7b) with the second jack shaft (4b) for being fixedly connected with, three can not relative movement, first gantry pillars (8a) and the second gantry pillars (8b) are arranged in frame, and they can only rotate around the axis of bevel gear wheel (9), first slide block (5a) is arranged in the first guide rail (6a), and the first slide block (5a) can slide along the first guide rail (6a), and the shape of the first guide rail (6a) is arc groove, second slide block (5b) is arranged in the second guide rail (6b), and the second slide block (5b) can slide along the second guide rail (6b), and the shape of the second guide rail (6b) is arc groove, one end of first jack shaft (4a) is supported by the first gantry pillars (8a), and its other end is supported by the first slide block (5a), and the first jack shaft (4a) can relative to the first gantry pillars (8a) and the first slide block (5a) rotation, but can not relative movement, one end of second jack shaft (4b) is supported by the second gantry pillars (8b), and its other end is supported by the second slide block (5b), and the second jack shaft (4b) can relative to the second gantry pillars (8b) and the second slide block (5b) rotation, but can not relative movement, the axis of the axis of input shaft (1), the axis of the first jack shaft (4a), the second jack shaft (4b) and the axes intersect of bevel gear wheel (9) are in a bit, and the intersection point of these four axis is also first from mantle dish (3a), second from the vertex of a cone of the calibration circular cone of mantle dish (3b), the first bevel pinion (7a), the calibration circular cone of the second bevel pinion (7b) and the calibration circular cone of bevel gear wheel (9), drive roller (2) and first keeps in touch from mantle dish (3a) and second from mantle dish (3b), first bevel pinion (7a) and the second bevel pinion (7b) all keep engaging with bevel gear wheel (9).
After adopting technique scheme, the useful good effect of the following aspects can be produced.One is easy to manufacture, and the shape from mantle dish without the towed stepless speed variator of spin of the present invention is circular cone, being straight line, manufacturing than being easier to from the bus of mantle dish; Two is that transmission efficiency is higher, the technical solution adopted in the present invention eliminates spin, and for once Traction Drive, and traditional towed stepless speed variator has twice Traction Drive and can not eliminate spin, therefore the transmission efficiency without the towed stepless speed variator of spin of the present invention is higher; Three is that speed regulating control is convenient, and when drive roller moves along input shaft axis, i.e. adjustable output speed, changes rotating ratio and be easier to.
Accompanying drawing explanation
Fig. 1 is the schematic diagram without the towed stepless speed variator of spin.
Fig. 2 is situation about exporting without the towed stepless speed variator low speed of spin.
Fig. 3 is the situation without the towed stepless speed variator speedy carding process of spin.
Embodiment
Existing composition graphs 1, describes the specific embodiment of the present invention in detail.
Without the towed stepless speed variator of spin, form from mantle dish (3b), the first jack shaft (4a), the second jack shaft (4b), the first slide block (5a), the second slide block (5b), the first guide rail (6a), the second guide rail (6b), the first bevel pinion (7a), the second bevel pinion (7b), the first gantry pillars (8a), the second gantry pillars (8b) and bevel gear wheel (9) from mantle dish (3a), second primarily of input shaft (1), drive roller (2), first.
Drive roller (2) is arranged on input shaft (1), and it can move along the axis of input shaft (1), but can not rotate relative to input shaft (1).The shape of drive roller (2) is disk, and its shape of generatrix is circular arc, and structure is simple, easy to manufacture.
First jack shaft (4a) is provided with first from mantle dish (3a) and the first bevel pinion (7a), first jack shaft (4a), first from mantle dish (3a) with the first bevel pinion (7a) three for being fixedly connected with, can not relative movement be produced between them.
Second jack shaft (4b) is provided with second from mantle dish (3b) and the second bevel pinion (7b), second jack shaft (4b), second from mantle dish (3b) with the second bevel pinion (7b) three for being fixedly connected with, can not relative movement be produced between them.
First is circular cone from mantle dish (3a) and second from the shape of mantle dish (3b), and their shape of generatrix is straight line.
First coincides with a bit from the vertex of a cone of mantle dish (3a), second from the vertex of a cone of the vertex of a cone of calibration circular cone of the vertex of a cone of mantle dish (3b), the first bevel pinion (7a), the vertex of a cone of the calibration circular cone of the second bevel pinion (7b) and the calibration circular cone of bevel gear wheel (9), and this coincident points is also the intersection point of the axis of input shaft (1), the first jack shaft (4a), the second jack shaft (4b) and bevel gear wheel (9).
First gantry pillars (8a) and the second gantry pillars (8b) are arranged in frame, and they can only rotate around the axis of bevel gear wheel (9).First gantry pillars (8a) and the second gantry pillars (8b) are arranged symmetrically with relative to input shaft (1).
First slide block (5a) is arranged in the first guide rail (6a), and the first slide block (5a) can slide along the first guide rail (6a), and the shape of the first guide rail (6a) is arc groove.
Second slide block (5b) is arranged in the second guide rail (6b), and the second slide block (5b) can slide along the second guide rail (6b), and the shape of the second guide rail (6b) is arc groove.
One end of first jack shaft (4a) is supported by the first gantry pillars (8a), and its other end is supported by the first slide block (5a), and the first jack shaft (4a) can rotate relative to the first gantry pillars (8a) and the first slide block (5a), but can not relative movement.
One end of second jack shaft (4b) is supported by the second gantry pillars (8b), and its other end is supported by the second slide block (5b), and the second jack shaft (4b) can rotate relative to the second gantry pillars (8b) and the second slide block (5b), but can not relative movement.
First bevel pinion (7a) and the second bevel pinion (7b) all keep often engaging with bevel gear wheel (9).
Drive roller (2) and first keeps in touch from mantle dish (3a) and second from mantle dish (3b) under the effect of external force.Contact force above can be produced at the first slide block (5a) and the second slide block (5b) by spring force or action of hydraulic force.
During stepless speed variator work towed without spin, rely on Involving velocity traction to be brought into drive roller (2) and first from mantle dish (3a) and second from the contact area between mantle dish (3b), traction forms traction oil film under the effect of contact.
Power without the towed stepless speed variator of spin of the present invention is inputted by input shaft (1), input shaft (1) drives drive roller (2) to rotate, drive roller (2) drives first to rotate from mantle dish (3a) and second from mantle dish (3b) by traction oil film, first drives the first bevel pinion (7a) and the second bevel pinion (7b) to rotate from mantle dish (3a) and second from mantle dish (3b) respectively, these two bevel pinions drive bevel gear wheel (9) to rotate, and are finally outputed power by bevel gear wheel (9).
When input shaft (1) rotating speed is constant, when drive roller (2) is mobile along input shaft (1), the rotating speed of bevel gear wheel (9) can be continuously changed.If when drive roller (2) moves towards the axial direction away from bevel gear wheel (9), first jack shaft (4a) and parts on shaft thereof rotate in the counterclockwise direction around the axis of bevel gear wheel (9), second jack shaft (4b) and parts on shaft thereof rotate along clockwise direction around the axis of bevel gear wheel (9), the angle of the first jack shaft (4a) and the second jack shaft (4b) diminishes, and the rotating speed of bevel gear wheel (9) reduces.If drive roller (2) is towards when the axial direction motion of bevel gear wheel (9), first jack shaft (4a) and parts on shaft thereof rotate along clockwise direction around the axis of bevel gear wheel (9), second jack shaft (4b) and parts on shaft thereof rotate in the counterclockwise direction around the axis of bevel gear wheel (9), the angle of the first jack shaft (4a) and the second jack shaft (4b) becomes large, and the rotating speed of bevel gear wheel (9) raises.
Fig. 2 is situation about exporting without the towed stepless speed variator low speed of spin.
Fig. 3 is the situation without the towed stepless speed variator speedy carding process of spin.
The condition that towed transmission must meet without spin phenomenon is: the tangent plane three of the turning axle of driving link, the turning axle of driven member, traction oil film is parallel to each other or intersects at a point.In towed stepless speed variator of the present invention, the axis, first of drive roller (2) meets at a fixed point from the axis, second of mantle dish (3a) all the time from the axis of mantle dish (3b) and the tangent plane of traction oil film, and this fixed point is exactly the intersection point of the axis of input shaft (1) and bevel gear wheel (9).Towed stepless speed variator of the present invention meet Traction Drive without spin condition, so there will not be spin phenomenon, transmission has higher efficiency.
Claims (2)
1. the towed stepless speed variator of nothing spin, primarily of input shaft (1), drive roller (2), first from mantle dish (3a), second from mantle dish (3b), first jack shaft (4a), second jack shaft (4b), first slide block (5a), second slide block (5b), first guide rail (6a), second guide rail (6b), first bevel pinion (7a), second bevel pinion (7b), first gantry pillars (8a), second gantry pillars (8b) and bevel gear wheel (9) composition, power is inputted by input shaft (1), exported by bevel gear wheel (9), it is characterized in that: drive roller (2) is arranged on input shaft (1), drive roller (2) can move along the axis of input shaft (1), but it can not rotate relative to input shaft (1), first jack shaft (4a) is provided with first from mantle dish (3a) and the first bevel pinion (7a), first from mantle dish (3a), the first bevel pinion (7a) and the first jack shaft (4a) for being fixedly connected with, three can not relative movement, second jack shaft (4b) is provided with second from mantle dish (3b) and the second bevel pinion (7b), second from mantle dish (3b), the second bevel pinion (7b) with the second jack shaft (4b) for being fixedly connected with, three can not relative movement, first gantry pillars (8a) and the second gantry pillars (8b) are arranged in frame, and they can only rotate around the axis of bevel gear wheel (9), first slide block (5a) is arranged in the first guide rail (6a), and the first slide block (5a) can slide along the first guide rail (6a), and the shape of the first guide rail (6a) is arc groove, second slide block (5b) is arranged in the second guide rail (6b), and the second slide block (5b) can slide along the second guide rail (6b), and the shape of the second guide rail (6b) is arc groove, one end of first jack shaft (4a) is supported by the first gantry pillars (8a), and its other end is supported by the first slide block (5a), and the first jack shaft (4a) can relative to the first gantry pillars (8a) and the first slide block (5a) rotation, but can not relative movement, one end of second jack shaft (4b) is supported by the second gantry pillars (8b), and its other end is supported by the second slide block (5b), and the second jack shaft (4b) can relative to the second gantry pillars (8b) and the second slide block (5b) rotation, but can not relative movement, the axis of the axis of input shaft (1), the axis of the first jack shaft (4a), the second jack shaft (4b) and the axes intersect of bevel gear wheel (9) are in a bit, and the intersection point of these four axis is also first from mantle dish (3a), second from the vertex of a cone of the calibration circular cone of mantle dish (3b), the first bevel pinion (7a), the calibration circular cone of the second bevel pinion (7b) and the calibration circular cone of bevel gear wheel (9), drive roller (2) and first keeps in touch from mantle dish (3a) and second from mantle dish (3b), first bevel pinion (7a) and the second bevel pinion (7b) all keep engaging with bevel gear wheel (9).
2. according to claim 1 without the towed stepless speed variator of spin, it is characterized in that: the part that the part that the first jack shaft (4a) and axle are installed and the second jack shaft (4b) and axle are installed is arranged symmetrically with relative to input shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510711076.XA CN105276110B (en) | 2015-07-29 | 2015-10-28 | One kind is without the towed buncher that spins |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015104531292 | 2015-07-29 | ||
| CN201510453129 | 2015-07-29 | ||
| CN201510711076.XA CN105276110B (en) | 2015-07-29 | 2015-10-28 | One kind is without the towed buncher that spins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105276110A true CN105276110A (en) | 2016-01-27 |
| CN105276110B CN105276110B (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510711076.XA Active CN105276110B (en) | 2015-07-29 | 2015-10-28 | One kind is without the towed buncher that spins |
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| Country | Link |
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| CN (1) | CN105276110B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907445A (en) * | 2016-12-21 | 2017-06-30 | 四川大学 | A kind of adaptive rate cone disk roller type is without the towed buncher that spins |
| CN107339384A (en) * | 2016-10-31 | 2017-11-10 | 西华大学 | One kind is without spin integral curve formula variable speed unit |
| CN107339385A (en) * | 2016-10-31 | 2017-11-10 | 西华大学 | One kind is without the monocyclic disc type stepless variable-speed unit that spins |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339384A (en) * | 2016-10-31 | 2017-11-10 | 西华大学 | One kind is without spin integral curve formula variable speed unit |
| CN107339385A (en) * | 2016-10-31 | 2017-11-10 | 西华大学 | One kind is without the monocyclic disc type stepless variable-speed unit that spins |
| CN107339385B (en) * | 2016-10-31 | 2023-08-15 | 西华大学 | Spin-free single-ring disc type stepless speed change unit |
| CN106907445A (en) * | 2016-12-21 | 2017-06-30 | 四川大学 | A kind of adaptive rate cone disk roller type is without the towed buncher that spins |
| CN106907445B (en) * | 2016-12-21 | 2019-03-29 | 四川大学 | A kind of adaptive rate cone disk roller type is without the towed stepless transmission that spins |
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| Publication number | Publication date |
|---|---|
| CN105276110B (en) | 2017-05-31 |
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