CN101526114B - Double cam self-adapting automatic clutch - Google Patents
Double cam self-adapting automatic clutch Download PDFInfo
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- CN101526114B CN101526114B CN2009101035100A CN200910103510A CN101526114B CN 101526114 B CN101526114 B CN 101526114B CN 2009101035100 A CN2009101035100 A CN 2009101035100A CN 200910103510 A CN200910103510 A CN 200910103510A CN 101526114 B CN101526114 B CN 101526114B
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- cirque body
- axial
- transmission shaft
- cone plate
- cam
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Abstract
The invention discloses a double cam self-adapting automatic clutch, comprising a transmission shaft and a conical disc clutch double cam self-adapting transmission assembly. The double cam self-adapting automatic transmission hub not only keeps the output power of motors and the driving conditions of vehicles in the optimum matching state and realizes balance control of the driving moment of vehicles and comprehensive running resistance, but also does not need to hand off transmission chains when backing vehicles, has the same backing operation as the common vehicles and simple operation and self adapts to automatic transmission along with the variation of running resistance under the condition of not cutting off the driving force. The double cam self-adapting automatic clutch is beneficial for energy efficiency of vehicles and mechanical power equipments and has the characteristics of small volume, light weight, simple structure and suitability for installation on the hub and for portable electric bicycles with small volume.
Description
Technical field
The present invention relates to a kind of Vehicular hub, particularly a kind of double cam self-adapting automatic clutch.
Background technique
In the prior art, automobile, motorcycle, electric bicycle all are directly to control closure or Current Control speed by speed-regulating handle or accelerator pedal basically, or adopt manual mechanical automatic transmission mode to realize speed change.The operation of driver is depended in the operation of handle or accelerator pedal fully, usually can cause operation and garage's situation not to match, and causes motor or motor fluctuation of service, the stall phenomenon occurs.
Motor Vehicle by rider under the situation of not knowing running resistance, only rule of thumb operate the speed change gear of control, have following problem unavoidably: 1. when startup, upward slope and heavy load, since running resistance increase, force motor or engine speed to descend, motor stall, heating even stop operating in the work of poor efficiency district.2. owing to there is not mechanical transmission to adjust moment of torsion and speed, can only promote the use of, can not satisfy under mountain area, hills and the heavy load conditions and use, dwindle using scope in the plains region; 3. driving wheel place installing space is little, has installed to be difficult to hold automatic transmission and other new technology behind motor or the motor again; 4. do not possess adaptive function, can not detect, revise and get rid of driver's error in operation automatically; 5. change when unexpected in the speed of a motor vehicle, motor or motor are under the unsteady state operating mode turn round, must cause motor or engine power and running resistance to be difficult to coupling.6. continuing, distance is short, grade ability is poor, and accommodation is little.
In order to overcome the above problems, a series of cam self-adapting automatic gear shifting device has appearred, utilize the running resistance driving cam, reach self-shifting purpose; For cooperating self shifter, free wheel device is set, and there is shunting in transmission; When moveing backward, cross owing to keep off and keep off slowly the transmission existence soon, thereby can make speed changer stuck, can't move backward; For solving the reversing problem, backing device is set on automatic transmission, when needing reversing, Transmitted chains is separated by driver's driving, realize reversing; Owing to increased backing device, make speed changer structure become comparatively complicated, improve fabricating cost, and need the driver manually to move backward, use also comparatively complicated.
Therefore, need a kind of clutch, not only can self adaption do not cut off under the situation of driving force and carry out shift speed change automatically with the change in resistance of travelling, solve the little problem that can not satisfy road use under the complex conditions of motor torque-rotation speed change, and reversing is without the hand off Transmitted chains, simple in structure, volume is little, in light weight, installation footprint is little.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of double cam self-adapting automatic clutch, not only can detect driving torque-rotating speed and running resistance-vehicle speed signal automatically according to running resistance, make motor or engine output and traveling state of vehicle be in the optimum Match state all the time, realize the Balance Control of vehicle traction moment and comprehensive running resistance, can carry out shift speed change automatically with the change in resistance of travelling not needing to cut off under the situation of driving force self adaption, can satisfy under mountain area, hills and the heavy load conditions and use, the speed of a motor vehicle changes steady slow; And the reversing do not need the hand off Transmitted chains, car backing operation is identical with common vehicle.
Double cam self-adapting automatic clutch of the present invention is provided with cone-disk clutch double cam self-adapting speed changing assembly on the transmission shaft;
Cone-disk clutch double cam self-adapting speed changing assembly comprises that the axial external cone plate of cirque body, the axial inner cone dish of cirque body gear ring, speed change spring and Spielpassung are enclosed within the driving gear on the transmission shaft;
Circle is the axial conical surface in the axial inner cone dish of the cirque body gear ring, and the axial external cone plate excircle of cirque body is the axial conical surface, and the mode that the axial inner cone dish of cirque body gear ring is worked in coordination with the conical surface is enclosed within the axial external cone plate excircle of cirque body;
Described transmission shaft circumference is provided with the cam path that an above spiral launches, be processed with the pin-and-hole identical on the axial external cone plate circumference of cirque body with cam path quantity, the axial external cone plate Spielpassung of cirque body is enclosed within on the transmission shaft, and cam pin passes pin-and-hole and inserts cam path; Speed change gapping of spring engage sleeves is on transmission shaft, and the relative transmission shaft of an end fixedly installs, and the other end is by the axial external cone plate of cirque body, and the inner conical surface of the axial inner cone dish of cirque body gear ring and the male cone (strobilus masculinus) of the axial external cone plate of cirque body are fitted under the speed change spring action;
The axial external cone plate of described driving gear and cirque body is provided with end cam respectively and by the end cam transmission of intermeshing.
Further, described speed change spring is a butterfly spring group;
Further, described speed change spring is arranged on the left side of the axial external cone plate of cirque body; The expansion direction of described cam path is opposite with transmission shaft power output sense of rotation from left to right, and the end cam line of contact expansion direction of driving gear and the axial external cone plate of cirque body is identical with transmission shaft power output sense of rotation from left to right;
Further, between described speed change spring and the axial external cone plate of cirque body first plane bearing is set;
Further, on the described transmission shaft annular boss is set, near annular boss, the other end passes through first plane bearing near the axial external cone plate of cirque body to speed change spring one end by prestressing force adjustment circle.
Further, described cam path be three uniform on the circumference of camshaft, cross section is rectangle.
The invention has the beneficial effects as follows: double cam self-adapting automatic clutch of the present invention, not only can detect driving torque-rotating speed and running resistance-vehicle speed signal according to running resistance, make motor or engine output and traveling state of vehicle be in the optimum Match state all the time, realize the Balance Control of vehicle traction moment and comprehensive running resistance, self adaption is carried out shift speed change automatically with the change in resistance of travelling under the situation of not cutting off driving force, and reversing does not need the hand off Transmitted chains, car backing operation is identical with common vehicle, and is simple to operate; The present invention not only helps vehicle and mechanical and power equipment is energy-efficient, can also control vehicle and reduce discharging, improves power character, Economy, drive safety and the travelling comfort of vehicle greatly; Owing to can under the situation of not cutting off driving force, self adaption carry out shift speed change automatically with the change in resistance of travelling, can satisfy under mountain area, hills and the heavy load conditions and use, it is mild that motor or engine load are changed, and motor vehicle operate steadily, and improves Security; Compare with other automatic transmission, the present invention has advantages such as volume is little, in light weight, simple in structure, compact structure, low cost of manufacture, is suitable for wheel hub and installs, and more accords with the little light characteristics of electric bicycle volume.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is an axial section structural representation of the present invention;
Fig. 2 is that axial external cone plate of cirque body and the axial inner cone dish of cirque body gear ring cooperate radial cross-section;
Fig. 3 is the axial external cone plate structural representation of cirque body;
Fig. 4 is the axial inner cone dish of a cirque body gear ring structure schematic representation;
Fig. 5 is provided with the cam path structural representation on the transmission shaft;
Embodiment
Fig. 1 is an axial section structural representation of the present invention, as shown in the figure:
Double cam self-adapting automatic clutch of the present invention comprises transmission shaft 1, and cone-disk clutch double cam self-adapting speed changing assembly is set on the transmission shaft;
Cone-disk clutch double cam self-adapting speed changing assembly comprises that the axial external cone plate 6 of cirque body, the axial inner cone dish of cirque body gear ring 7, speed change spring 3 and Spielpassung are enclosed within the driving gear 9 on the transmission shaft 1;
Circle is the axial conical surface in the axial inner cone dish of the cirque body gear ring 7, in the gear engagement of retaining slowly that the axial inner cone dish of when assembling cirque body gear ring 7 and speed changer keep off driving mechanism slowly, the excircle of the axial inner cone dish of the rotatable parts of power plant and cirque body gear ring 7 by spline structure in the circumferencial direction secure fit;
Axial external cone plate 6 excircles of cirque body are the axial conical surface, and the mode that the axial inner cone dish of cirque body gear ring 7 is worked in coordination with the conical surface is enclosed within axial external cone plate 6 excircles of cirque body; The cam path 1a that uniform three spirals launch on described transmission shaft 1 circumference, cam path 1a cross section is a rectangle; Be processed with the pin-and-hole 6a identical on axial external cone plate 6 circumference of cirque body with cam path 1a quantity, axial external cone plate 6 Spielpassung of cirque body are enclosed within on the transmission shaft 1, cam pin 12 passes pin-and-hole 6a and inserts cam path 1a, described cam pin 12 inserts cam path 1a by the cam guide 11 with its Spielpassung, to reduce the frictional force between cam pin 12 and the cam path 1a; Speed change spring 3 Spielpassung are enclosed within on the transmission shaft 1, on the described transmission shaft 1 annular boss is set, speed change spring 3 one ends by prestressing force adjustment circle 2 near annular boss, the other end passes through first plane bearing 4 near the axial external cone plate 6 of cirque body, guarantee it to be active in one's movements not because of 6 pairs of speed change springs of the axial external cone plate of cirque body 3 produce the flexibility that moment of torsion influences spring; Prestressing force adjustment circle 2 is set, can adjusts the thickness of prestressing force adjustment circle 2 according to actual needs, thereby adjust the prestressing force of speed change spring 3, can reach the speed change purpose according to different resistances; The inner conical surface of the axial inner cone dish of cirque body gear ring 7 and the male cone (strobilus masculinus) of the axial external cone plate 6 of cirque body fit tightly under 3 effects of speed change spring; During installation, the axial inner cone dish of cirque body gear ring 7 excircles cooperate with corresponding casing by annular bearing with rolling contact 5; Speed change spring 3 is arranged on the left side of the axial external cone plate 6 of cirque body, and speed change spring 3 is a butterfly spring group in the present embodiment; The expansion direction of cam path 1a is opposite with transmission shaft 1 power output sense of rotation from left to right, i.e. clockwise direction;
The right part of driving gear 9 left parts and the axial external cone plate 6 of cirque body is provided with end cam respectively, the axial external cone plate 6 of driving gear 9 and cirque body is by intermesh transmission engagement of end cam, the end cam line of contact expansion direction of driving gear 9 and the axial external cone plate 6 of cirque body is identical with transmission shaft 1 power output sense of rotation from left to right, counterclockwise promptly; Driving gear 9 left ends and the axial inner cone dish of cirque body gear ring 7 are provided with second plane bearing 8, right-hand member is provided with the 3rd plane bearing 10, the situation that prevents between the axial inner cone dish of driving gear 9 and the cirque body gear ring 7 and occur rotating interference between driving gear 9 other parts.
Above embodiment is an optimum structure of the present invention, is not the qualification to protection domain of the present invention, being equal to replacement and all can making corresponding change of some technical characteristicss, and do not influence the realization of the object of the invention.
The fast retaining power transmission line of present embodiment:
The axial external cone plate 6 → cam pin of the axial inner cone dish of power → cirque body gear ring 7 → cirque body 12 → transmission shaft 1 → wheel.
Slowly keep off power transmission line:
The axial inner cone dish of power plant → cirque body gear ring 7 → slowly keeps off the axial external cone plate 6 → cam pin of driving mechanism → driving gear 9 → cirque body 12 → transmission shaft 1 → wheel.
Slowly keep off power transmission line and also pass through following route simultaneously: the axial external cone plate 6 of driving gear 9 → end cam engagement pair → cirque body → compression speed change spring 3, prevent to keep off slowly appearance compression speed change spring 3 past compound compression in the transmission process, prevent axial external cone plate 6 applyings of the axial inner cone dish of cirque body gear ring 7 and cirque body;
The reversing power transmission line:
The axial external cone plate 6 → driving gear 9 of wheel → transmission shaft 1 → cirque body → keep off the slowly axial inner cone dish of driving mechanism → cirque body gear ring 7 → rotor
Simultaneously, the axial external cone plate 6 → end cam engagement pair of wheel → transmission shaft 1 → cirque body → compression speed change spring 3 breaks away from the axial external cone plate 6 of the axial inner cone dish of cirque body gear ring 7 and cirque body and fits, and realizes reversing smoothly;
Fast retaining of the present invention transmits the resistance transfer route and retaining transmission resistance transfer route is opposite with power transmission line slowly.
Simultaneously, resistance also passes through following route: the axial external cone plate 6 of transmission shaft 1 → cam pin 12 → cirque body → compression speed change spring 3, and the axial external cone plate 6 of the axial inner cone dish of cirque body gear ring 7 and cirque body is broken away from fit, realize keeping off slowly transmission.
When the present invention moves after installation, the inner conical surface of the axial inner cone dish of cirque body gear ring 7 and the male cone (strobilus masculinus) of the axial external cone plate 6 of cirque body fit tightly under 3 effects of speed change spring, form an automatic transmission that keeps certain pressure, and can enclose 2 thickness by the adjustment of increase prestressing force and adjust the required pressure of clutches engaged, reach the transmission purpose, at this moment, power plant drive the axial inner cone dish of cirque body gear ring 7, the axial external cone plate 6 of cirque body, cam pin 12, transmission shaft 1, and wheel is rotated counterclockwise; Slowly keeping off free wheel device this moment is in and surmounts state.
Resistance is greater than driving force during motor vehicle starting, and resistance forces transmission shaft 1 to clockwise rotate several angle, and under the effect of cam path 1a, cam pin 12 drives the axial external cone plate 6 compression speed change springs 3 of cirque body to the direction motion of compression speed change spring 3; The axial external cone plate 6 of cirque body separates with the axial inner cone dish of cirque body gear ring 7, synchronously, slowly keep off the driving mechanism engagement, power plant drive the axial inner cone dish of cirque body gear ring 7, keep off driving mechanism, driving gear 9, the axial external cone plate 6 of cirque body, cam pin 12, transmission shaft 1 slowly, make wheel with retaining speed rotation slowly; Therefore, realize the bottom gear starting automatically, shortened the starting time, reduced starting force.Meanwhile, speed change spring 3 absorbs movement resistor moment energy, holds potential energy fully for recovering soon the gear transferring power.
After starting successfully, running resistance reduces, when component is reduced to less than in the speed change butterfly spring automatic transmission that speed change spring 3 produced pressure, because of producing speed change spring 3 pressure, the compression of passive movement resistance discharges promotion rapidly down, the inner conical surface of finishing the male cone (strobilus masculinus) of the axial external cone plate 6 of cirque body and the axial inner cone dish of cirque body gear ring 7 recovers to fit tightly state, keeps off free wheel device slowly and is in and surmounts state.
In the reversing process, reversing power is delivered to the end cam engagement pair by wheel, transmission shaft 1, the axial external cone plate 6 of cirque body, end cam drives the axial external cone plate 6 compression speed change springs 3 of cirque body, the axial external cone plate 6 of the axial inner cone dish of cirque body gear ring 7 and cirque body is broken away from fit, realize reversing smoothly;
In the running process,, realize variable block not needing to cut off under the situation of driving force, make whole locomotive operation steady along with the variation self shifter principle of resistance to motion is the same, safe and low consumption, and also transfer route oversimplifies, and improves transmission efficiency.
Fig. 2 is that axial external cone plate of cirque body and the axial inner cone dish of cirque body gear ring cooperate radial cross-section, and as shown in the figure: the mode that the axial inner cone dish of cirque body gear ring 7 is worked in coordination with the conical surface is enclosed within axial external cone plate 6 excircles of cirque body; The cam path 1a that uniform three spirals launch on transmission shaft 1 circumference, be processed with the pin-and-hole 6a identical on axial external cone plate 6 circumference of cirque body with cam path 1a quantity, axial external cone plate 6 Spielpassung of cirque body are enclosed within on the transmission shaft 1, and cam pin 12 passes the inner conical surface of the axial inner cone dish of pin-and-hole 6a insertion cam path 1a cirque body gear ring 7 and the male cone (strobilus masculinus) of the axial external cone plate 6 of cirque body fits tightly.
Fig. 3 is the axial external cone plate structural representation of cirque body, Fig. 4 is the axial inner cone dish of a cirque body gear ring structure schematic representation, as shown in the figure: axial external cone plate 6 right-hand members of cirque body are provided with end cam, driving gear 9 left ends are provided with end cam, the end cam engagement of axial external cone plate 6 of cirque body and driving gear 9 forms the end cam engagement pair, in the present embodiment, the line of contact of end cam engagement pair is from left to right by counterclockwise launching.
Fig. 5 is provided with the cam path structural representation on the transmission shaft, and as shown in the figure: the cam path 1a that three spirals of uniform processing launch on transmission shaft 1 circumference, in the present embodiment, cam path 1a is by launching clockwise from left to right.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. a double cam self-adapting automatic clutch comprises transmission shaft (1), it is characterized in that: cone-disk clutch double cam self-adapting speed changing assembly is set on the transmission shaft (1);
Cone-disk clutch double cam self-adapting speed changing assembly comprises that the axial external cone plate of cirque body (6), the axial inner cone dish of cirque body gear ring (7), speed change spring (3) and Spielpassung are enclosed within the driving gear (9) on the transmission shaft (1);
Circle is the axial conical surface in the axial inner cone dish of the cirque body gear ring (7), and the axial external cone plate of cirque body (6) excircle is the axial conical surface, and the mode that the axial inner cone dish of cirque body gear ring (7) is worked in coordination with the conical surface is enclosed within the axial external cone plate of cirque body (6) excircle;
Described transmission shaft (1) circumference is provided with the cam path (1a) that an above spiral launches, be processed with the pin-and-hole (6a) identical on the axial external cone plate of cirque body (6) circumference with cam path (1a) quantity, the axial external cone plate of cirque body (6) Spielpassung is enclosed within on the transmission shaft (1), and cam pin (12) passes pin-and-hole (6a) and inserts cam path (1a); Speed change spring (3) Spielpassung is enclosed within on the transmission shaft (1), the relative transmission shaft of one end (1) fixedly installs, the other end is by the axial external cone plate of cirque body (6), and the male cone (strobilus masculinus) of the inner conical surface of the axial inner cone dish of cirque body gear ring (7) and the axial external cone plate of cirque body (6) is fitted under speed change spring (3) effect;
Described driving gear (9) and the axial external cone plate of cirque body (6) are provided with end cam respectively and by the end cam transmission of intermeshing.
2. double cam self-adapting automatic clutch according to claim 1 is characterized in that: described speed change spring (3) is a butterfly spring group.
3. double cam self-adapting automatic clutch according to claim 2 is characterized in that: described speed change spring (3) is arranged on the left side of the axial external cone plate of cirque body (6); The expansion direction of described cam path (1a) is opposite with transmission shaft (1) power output sense of rotation from left to right, and the end cam line of contact expansion direction of driving gear (9) and the axial external cone plate of cirque body (6) is identical with transmission shaft (1) power output sense of rotation from left to right.
4. double cam self-adapting automatic clutch according to claim 3 is characterized in that: between described speed change spring (3) and the axial external cone plate of cirque body (6) first plane bearing (4) is set.
5. double cam self-adapting automatic clutch according to claim 4, it is characterized in that: described transmission shaft is provided with annular boss on (1), near annular boss, the other end passes through first plane bearing (4) near the axial external cone plate of cirque body (6) to speed change spring (3) one ends by prestressing force adjustment circle (2).
6. double cam self-adapting automatic clutch according to claim 5 is characterized in that: described cam path (1a) is three, and uniform on the circumference of transmission shaft (1), and cross section is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101035100A CN101526114B (en) | 2009-03-31 | 2009-03-31 | Double cam self-adapting automatic clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101035100A CN101526114B (en) | 2009-03-31 | 2009-03-31 | Double cam self-adapting automatic clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101526114A CN101526114A (en) | 2009-09-09 |
| CN101526114B true CN101526114B (en) | 2011-07-20 |
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ID=41094139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101035100A Expired - Fee Related CN101526114B (en) | 2009-03-31 | 2009-03-31 | Double cam self-adapting automatic clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101526114B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717705B (en) * | 2012-06-18 | 2015-07-22 | 西南大学 | Mechanical intelligent adaptive double-gear automatic speed change hub with multiple cams |
| CN102720818B (en) * | 2012-06-18 | 2015-07-15 | 西南大学 | Mechanical, intelligent, adaptive, two-speed and multi-cam automatic transmission |
| CN102748450B (en) * | 2012-07-02 | 2015-03-11 | 西南大学 | Mechanical intelligent adaptive two-gear multi-cam automatic speed change driver |
| CN102748449B (en) * | 2012-07-02 | 2015-03-11 | 西南大学 | Planetary intelligent self-adaptive two-gear multi-cam automatic speed change driver |
-
2009
- 2009-03-31 CN CN2009101035100A patent/CN101526114B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101526114A (en) | 2009-09-09 |
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Address after: 402460 Xueyuan Road 160, Rongchang District, Chongqing Patentee after: Southwest University Address before: 400715 No. 1 Tiansheng Road, Beibei District, Chongqing Patentee before: Southwest University |
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