CN1607343A - Cable type impulse stepless gear box - Google Patents
Cable type impulse stepless gear box Download PDFInfo
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- CN1607343A CN1607343A CN 200410084874 CN200410084874A CN1607343A CN 1607343 A CN1607343 A CN 1607343A CN 200410084874 CN200410084874 CN 200410084874 CN 200410084874 A CN200410084874 A CN 200410084874A CN 1607343 A CN1607343 A CN 1607343A
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- rope
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- stepless gear
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Abstract
The present invention discloses a cable type impulse stepless gear box, which draws the output mechanism active loop to work by using adjustable winch via cable, and draws the same back with spring to achieve the whole transmission. The impulse stepless gear box has high input rotate speed, little vibration, high efficiency, and is mainly used for stepless gear of car and stepless gear system of mechanical device outdoors.
Description
Technical field
The present invention relates to a kind of mechanical stepless transmission, especially a kind of pulse-type continuously variable transmission.
Background technique
The speed change gear that pulse-type continuously variable transmission is made up of driving mechanism, output mechanism and three substantial sections of speed regulating mechanism.Driving mechanism becomes the uniform rotation of input shaft the reciprocally swinging of rocking bar; Speed regulating mechanism changes the amplitude of rocking bar reciprocally swinging by the length that changes adjustable crank; But the one-way rotation output that becomes pulsation swung the rocking bar of amplitude modulation at last by the free wheel device as output mechanism.
The pulse-type continuously variable transmission driving mechanism adopts the low counter gear of how much sealings, therefore have reliable operation, bearing capacity height, the stable characteristics of gearshift performance, the design flexibility of its driving mechanism is big, can realize the requirement of speed change on a large scale, and minimum output speed can be zero, the mode of speed regulation that can adopt is more, at equal variable-speed static or in service.In addition, pulse-type continuously variable transmission also has simple in structure, volume is less, advantages such as easily manufactured and cost is lower, but the inertial force during its link motion is difficult to obtain balance, the caused vibration of unbalanced inertial force and moment of inertia can enlarge markedly when high speed, and the dynamic load of its generation still causes the lower major reason of mechanical efficiency, and the pulsating nature of its output is also bigger in addition.
Summary of the invention
In order to overcome the inertial force and the big defective of dynamic load of existing pulse-type continuously variable transmission, the invention provides a kind of cable type impulse stepless gear box, this pulse-type continuously variable transmission not only has the superiority of existing pulse-type continuously variable transmission, and existing relatively pulse-type continuously variable transmission has the little characteristic of input speed height, inertial force and dynamic load, be a kind of speed height, running steadily, new architecture that efficient is high.
In order to reach the little characteristic of input speed height, inertial force and dynamic load, the invention provides a kind of cable type impulse stepless gear box, the technological scheme that it adopted is: the active interannular chain of adjustable crank on the speed regulating mechanism and output mechanism is connected to rope; Spur the opposite direction that output mechanism initiatively encircles work done at rope, the direct or indirect chain that initiatively encircles of output mechanism is followed spring.Above-mentioned rope can replace with other flexible element except that rope, as steel disc, chain.
During work, driving mechanism rotates by driving wheel, by be installed on the driving wheel adjustable crank through rope pulling output mechanism initiatively encircle carry out before the half-turn work done, when driving wheel turns to the back half-turn, spring pulling output mechanism initiatively encircle and rope toward bouncing back; Speed regulating mechanism changes the rotational travel that rope pulling output mechanism initiatively encircles by the position that changes adjustable crank; Output mechanism becomes the one-way rotation output of pulsation by the reciprocal rotation with range-adjustable.This structural change traditional linkage type transmission, adopt rope directly to drive output mechanism and initiatively encircle, its superfluous constraint power is few, reciprocating part is in light weight, inertial force is little; And when motion rope and output mechanism initiatively encircle and drawn by spring, reduced the impact that causes because of inertia.
Above-mentioned cable type impulse stepless gear box reduces output ripple for balance inertial force, shortens the telescopic spring distance, adopts the even number output mechanism, and per two is one group; The relative driving mechanism driving wheel of two output mechanisms axle center in every group is basic symmetrical distribution, and the distance of the relative driving mechanism driving wheel of each output mechanism is preferably equal; Two active rings of every group of output mechanism spur this opposite direction that initiatively encircles work done at its rope respectively and directly or indirectly link with spring.Every group of output mechanism of said structure two initiatively ring is the opposite direction motion, and travelling speed is close, moving body is big or small and similar weight, thereby the mutual balance of inertia when making work reduces vibration.
Two of above-mentioned every group of output mechanism initiatively encircles and spurs the method that this opposite direction that initiatively encircles work done directly links with spring at its rope respectively, can adopt the resilient rope of direct usefulness that two output mechanisms are initiatively encircled at adjustable crank and link to each other through the rightabout end that rope pulling output mechanism initiatively encircles.Two of every group of output mechanism initiatively encircles and spurs the method that this opposite direction that initiatively encircles work done links with spring indirectly at its rope respectively, can adopt at adjustable crank to link to each other with an end of draught spring with rope respectively through the rightabout end that rope pulling output mechanism initiatively encircles; Also can adopt direct through action roller two output mechanisms initiatively rings at adjustable crank to link to each other through the rightabout end that rope pulling output mechanism initiatively encircles with rope, this action roller is drawing with spring, connects the rope that two output mechanisms initiatively encircle thereby this action roller is hauled all the time.Above-mentioned three kinds of mode of connection utilize two output mechanisms initiatively to encircle its backhaul when driving wheel forwards the back half-turn to of mutual traction, spring compensated because of adjustable crank when rope spurs two output mechanisms and initiatively encircles, length difference during the different and different corners traction that causes of linear velocity, this structure decrease the power loss that causes because of stiff spring, improved efficient.
Above-mentioned cable type impulse stepless gear box reduces output ripple for balance inertial force, shorten the telescopic spring distance, also can adopt and two groups of identical pulse-type continuously variable transmissions are co-axial shafts settle to mirror image, and the displacement path of two speed regulating mechanisms is opposite, travelling speed is synchronous, and two driving wheels turn to identical and synchronous rotation.
In order to prevent rope in adjustable crank place bending, and cause the lost of life and power consumpiton, the utility model is equipped with one and drives ring on adjustable crank.The structure of this drive ring is: ring is equipped with needle bearing in it, has an annular groove on the excircle, at the annular groove place several rollers is installed, and roller can free rotation motion; This roller quantity is decided by the rope of adjustable crank pulling, and it is generally a roller and a rope is connected; Between each adjacent roller relatively the angle of the ring heart be preferably equally, each roller also is preferably equal to the distance of encircling the heart.
The displacement of the adjustable crank of above-mentioned cable type impulse stepless gear box speed regulating mechanism can drive screw rod by actuating motor, and screw rod promotes the distance that adjustable crank changes its relative driving wheel axle center.The displacement of adjustable crank also can directly promote with oil cylinder or cylinder by hydraulic pressure or air pressure, and also available hydraulic motor or pneumatic motor drive screw rod promotion adjustable crank is realized.Speed regulating mechanism is used actuating motor as the speed governing power source, and its convenient long-range and microcomputer control is convenient to realize automation.
The invention has the beneficial effects as follows the input speed height, vibration is little, superfluous constraint power is few, inertial force is little, running is steady, efficient is high.
Description of drawings
Fig. 1 is a basic structure sketch of the present invention; Wherein: 1 is driving wheel, and 2 is adjustable crank, and 3 is main steel rope, and 4 is free wheel device, and 5 is small steel rope, and 6 is draught spring.
Fig. 2 is the basic structure sketch that the present invention adopts the even number output mechanism; Wherein: a, b, c point are wherein three location points in the adjustable crank motion, and 3 is main steel rope, and 4 is free wheel device, and 5 is small steel rope, and dotted line is the location status of adjustable crank main steel rope when moving to the c point.
Fig. 3 is the structural drawing of the embodiment of the invention; Wherein: 1 is driving wheel, and 2 is adjustable crank, and 3 is main steel rope, and 4 is free wheel device, and 5 is small steel rope, and 7 is body, and 8 is screw mandrel, and 9 is speed-adjustable motor, and 10 is brush, and 11 is output gear, and 12 is action roller, and 13 for driving ring.
Fig. 4 is the attached view of Fig. 1.
Fig. 5 is the A-A section worm's eye view of Fig. 3 structural drawing; Wherein: 14 is driving gear, and 11 is output gear, and 1 is driving wheel, and 7 is body, and 9 is speed-adjustable motor, and 15 are the input gear.
Fig. 6 is the local 3 times of figure of amplification of the I portion of Fig. 4; Wherein: 5 is small steel rope, and 6 is draught spring, and 7 is body, and 12 is action roller, and 16 is piston, and 17 is screw.
Fig. 7 is the 3 times of sectional drawings of radially amplification that drive ring; Wherein: 2 is adjustable crank, and 18 is needle bearing, and 19 is roller, and 20 for driving the ring ring body.
Specific embodiment
Tell about employing even number output mechanism below in conjunction with accompanying drawing 2, and per two is one group; The relative driving mechanism driving wheel of two output mechanisms axle center in every group is basic symmetrical distribution, and the distance of the relative driving mechanism driving wheel of each output mechanism is preferably equal; Every group of output mechanism two initiatively ring spur the principle of the cable type impulse formula stepless speed variator that this opposite direction that initiatively encircles work done directly or indirectly links with spring respectively at its rope.Adjustable crank is along the direction of arrow circular movement during acting, when adjustable crank during in upper half (promptly from a point to the b point) motion, the free wheel device work done on the right, the separated attitude of the free wheel device on the left side (being in idle running), this moment left side free wheel device motion because main steel rope can only single load bearing, so its motion needs by small steel rope it to be spurred, thereby makes main steel rope be in tension all the time; Simultaneously the free wheel device on the right is in work done, will spur small steel rope along free wheel device outer shroud circumferential ring around.When adjustable crank moved to lower branch, the free wheel device on the left side was in the work done state, and the free wheel device on the right is in separated state.The length difference of small steel rope made main steel rope and small steel rope be in stressed tension all the time when but spring real-Time Compensation adjustable crank circumference rotated.
The embodiment of the invention shown in Figure 3 adopts eight output mechanism, and output mechanism adopts roller-type overrunning clutch (4), and their relative driving wheels (1) are isogonism and equidistantly distribute.Driving wheel (1) is linked with input gear (15), and adjustable crank (2) is installed on the driving wheel (1); Adjustable crank (2) is gone up installation has one to drive ring (13) again, the interior ring of this drive ring (13) is equipped with needle bearing (18), have an annular groove on the excircle, eight roller (19) is installed at the annular groove place, the angle that encircles the heart between two adjacent rollers relatively is 45 °, and each roller (19) equates to the distance of the ring heart; Each roller (19) all welds together with an end of a main steel rope (3), and the length of eight main steel rope is equal substantially; Eight relative with eight respectively driving wheel angle of main steel rope is 45 °, and each links to each other with the outer shroud of the equidistant free wheel device in driving wheel (1) axle center (4); Two free wheel devicees of symmetry, directly link to each other at the rightabout end of adjustable crank (2) through main steel rope (3) pulling free wheel device (4) through the outer shroud of action roller (12) with two free wheel devicees with small steel rope (5), action roller (12) is drawing with spring (6) in the direction of small steel rope (5) pulling free wheel device (4).
Output mechanism is the equidistant free wheel device of isogonism (4) by eight relative driving wheel (1) and forms, their driven torus through output gear (11) with mutually transmission of driving gear (14), thereby the driven torus rotating speed of each free wheel device (4) is all equated.
Speed regulating mechanism adopts speed-adjustable motor (9) is installed in driving wheel (1) inner chamber, and servosignal is passed to speed-adjustable motor (9) by brush (10), and speed-adjustable motor (9) is linked by gear and the screw mandrel (8) that is installed on the adjustable crank.
During work, external power source is passed to driving wheel (1) through input gear (15), driving wheel (1) when beginning to rotate adjustable crank (2) carry out work done by driving ring (13) through main steel rope (3) pulling free wheel device (4), each free wheel device (4) becomes common output terminal through output gear (11) with the mutual transmission row of driving gear (14) by their driven torus; Servosignal is passed to speed-adjustable motor (9) by brush (10) during speed governing, speed-adjustable motor (9) rotates after gear driven screw mandrel (8), the position that changes adjustable crank (2) by screw mandrel (8) changes the rotational travel of main steel rope (3) pulling free wheel device (4), thereby makes the rotating speed of output terminal produce level and smooth variation.
As shown in Figure 1, in the specific embodiments of the invention, described cable type impulse stepless gear box comprises initiatively rotary case (1), free wheel device and is connected in free wheel device and initiatively encircles on (4), and walk around peripheral part in order to drive the rope (3) that free wheel device rotates, one end of rope links with the adjustable crank of being located in the rotary case radial groove (2), initiatively is provided with Returnning spring (6) between the opposite side of ring and the frame.During work, when the active rotary case rotates counterclockwise, the adjustable joining end that drive is located in its radial groove rotates, thereby the active ring through rope pulling free wheel device rotates counterclockwise, when the active ring of clutch rotates counterclockwise more, free wheel device is jointing state, drives driven shaft and rotates counterclockwise thereupon; When the active rotary case turns to the back half-turn, because rope can only single load bearing, at this moment, the unidirectional gearing of free wheel device, driven shaft in the middle of it can not turn round thereupon, thereby when initiatively rotary case is rotated further preceding half-turn, can drive the work that free wheel device enters next round by rope again.During speed governing, be located at the radial position of the adjustable crank in the rotary case radial groove, the angular velocity of free wheel device is changed by change.
Claims (8)
1. cable type impulse stepless gear box, it mainly is made up of driving mechanism, speed regulating mechanism, output mechanism, it is characterized in that: chain is connected to rope (3) between the active ring (4) of adjustable crank on the speed regulating mechanism (2) and output mechanism; Spur the opposite direction that output mechanism initiatively encircles (4) work done at rope (3), the active ring (4) of output mechanism directly or indirectly chain is followed spring (6).
2. rope according to claim 1 (3) is characterized in that: available other flexible element except that rope of described rope (3) replaces.
3. output mechanism according to claim 1 is characterized in that: described output mechanism is an even number, and per two is one group; The relative driving mechanism driving wheels of two output mechanisms in every group (1) axle center is basic symmetrical distribution, and the distance of the relative driving mechanism driving wheel of each output mechanism (1) is preferably equal.
4. output mechanism according to claim 3 is characterized in that: two active rings (4) of described every group of output mechanism spur this opposite direction that initiatively encircles (4) work done at its rope (3) respectively and directly or indirectly use spring (6) link.
5. cable type impulse stepless gear box according to claim 1, it is characterized in that: described cable type impulse stepless gear box employing is co-axial shafts with two groups of identical cable type impulse stepless gear boxes and settles to mirror image, and the displacement path of two speed regulating mechanisms is opposite, travelling speed is synchronous, and two driving wheels turn to identical and synchronous rotation.
6. adjustable crank according to claim 1 is characterized in that: be equipped with one on the described adjustable crank (2) and drive ring (13).
7. the drive ring of stating according to claim 6 (13), it is characterized in that: the structure of described drive ring (13) is equipped with needle bearing (18) for ring in it, have an annular groove on the excircle, several rollers (19) are installed at the annular groove place, the angle that encircles the heart between each adjacent roller relatively is preferably equal, each roller (19) is preferably equal to the distance of encircling the heart, roller (19) can free rotation motion.
8. speed regulating mechanism according to claim 1 is characterized in that: described adjustable crank (2) is equipped with screw rod (8), and screw rod (8) is linked with actuating motor (9), and actuating motor (9) rotates synchronously with the driving wheel (1) of driving mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410084874 CN1607343A (en) | 2003-10-14 | 2004-10-09 | Cable type impulse stepless gear box |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200320101861.6 | 2003-10-14 | ||
| CN200320101861 | 2003-10-14 | ||
| CN 200410084874 CN1607343A (en) | 2003-10-14 | 2004-10-09 | Cable type impulse stepless gear box |
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| Publication Number | Publication Date |
|---|---|
| CN1607343A true CN1607343A (en) | 2005-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410084874 Pending CN1607343A (en) | 2003-10-14 | 2004-10-09 | Cable type impulse stepless gear box |
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|---|---|
| CN (1) | CN1607343A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591241A (en) * | 2013-11-13 | 2014-02-19 | 德州高科力液压有限公司 | Gapless flexible transmission mechanism |
| CN104728382A (en) * | 2015-04-08 | 2015-06-24 | 方何龙 | Stepless engine speed change system |
-
2004
- 2004-10-09 CN CN 200410084874 patent/CN1607343A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591241A (en) * | 2013-11-13 | 2014-02-19 | 德州高科力液压有限公司 | Gapless flexible transmission mechanism |
| CN104728382A (en) * | 2015-04-08 | 2015-06-24 | 方何龙 | Stepless engine speed change system |
| CN104728382B (en) * | 2015-04-08 | 2017-03-29 | 方何龙 | Electromotor stepless speed variator system |
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