CN204916042U - Slepless transmission arrangement - Google Patents
Slepless transmission arrangement Download PDFInfo
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- CN204916042U CN204916042U CN201520669283.9U CN201520669283U CN204916042U CN 204916042 U CN204916042 U CN 204916042U CN 201520669283 U CN201520669283 U CN 201520669283U CN 204916042 U CN204916042 U CN 204916042U
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- gear wheel
- speed change
- big gear
- continuously variable
- tooth bar
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- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
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- 230000007246 mechanism Effects 0.000 description 2
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- 230000001360 synchronised effect Effects 0.000 description 2
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Abstract
The utility model discloses a slepless transmission arrangement, including gear box casing, install gear wheel and several pinion in the gear box casing, little gear engagement distributes peripherally in the gear wheel, every pinion one side and variable speed rack toothing, gear box casing is last along radially having seted up the T -slot, the activity of variable speed rack is inlayed and is located in the T -slot, and stretch out outside the gear box casing, chain chain wheel or little band pulley are installed to variable speed rack end, the utility model discloses a slepless transmission arrangement can use on the bicycle or be industrial, and the variable speed is steady, control simple, convenient to use, high transmission efficiency.
Description
Technical field
The utility model relates to a kind of transmission system, particularly a kind of continuously variable unit.
Background technology
Change-speed box is used to change from the rotating speed of driving engine and the mechanism of torque, and it can be fixed or stepping changes output shaft and input shaft transmitting ratio, also known as change speed gear box.The large multiplex ordinary gear transmission of transmission device, what also have uses Planetary Gear Transmission.The advantage that the efficient height of simple-type change-speed box, simple structure are easy to use, but gear number is few, has impact, only should adopt in some turner that gear number is few.
Existing bicycle speed-varying unit mostly is and adopts tower chain wheel set on drive sprocket and driven sprocket, by derailleur adjustment chain position, makes chain and different sprocket engagement, thus changes transmitting ratio, realize the object of speed change.In chain wheel set, the number of teeth of each sprocket wheel is fixed, transmitting ratio change irregularity in speed-change process; In addition, in transmission process, most of the time drive sprocket and driven sprocket, not in same plane, cause chain distortion, easily cause de-chain, chain jamming, accelerate chain sprocket wear.
Continuously variable unit in industry on lathe is all generally rely on the spindle stock of built-in multipair gear to carry out speed change, and its transmitting ratio realized is fixed in certain several value; Carry out adding man-hour, cannot require according to materials and process any adjustment carrying out rotating speed; In addition, separation and the engagement of gear occurs during speed governing, and there is greater impact in engagement, can impact instantaneously to each parts.
The speed change of packing machine and trademark plastering machine etc. is still realized by change speed gear box, and change speed gear box accounts for volume comparatively greatly on the one hand, on the other hand, easily causes the fluctuation of the quality of production when former live spindle carries out gear speed-changing.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of continuously variable unit, and to reach, speed change is steady, manipulation is simple, is applied in bicycle and can promotes comfort level when user uses, can heighten the easy control of machine and the object of reliability in industry.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of continuously variable unit, comprises gearbox body, is provided with big gear wheel and several miniature gears in described gearbox body, and described miniature gears engagement is distributed in big gear wheel periphery, and each miniature gears side is engaged with speed change tooth bar; Described gearbox body radially offers T slot, and the activity of described speed change tooth bar is embedded in described T slot, and stretches out outside described gearbox body; Described speed change tooth bar end is provided with zipper saw disc.
In further technical scheme, the thickness of described miniature gears is greater than big gear wheel, and described speed change tooth bar is positioned at the top of big gear wheel, and speed change tooth bar at the upper direction of big gear wheel place plane, can increase the scope of speed change.
Preferably, described gearbox body is discoid, and gearbox body itself also rotates, and self serve as again large zipper saw disc (Chain conveyer) or belt wheel (V belt translation), described big gear wheel is positioned at the center of gearbox body.
Preferably, described miniature gears and speed change tooth bar have 6 respectively, are uniformly distributed in the periphery of big gear wheel, and the quantity of miniature gears and speed change tooth bar is not limited to 6, and quantity is more, and effect is better.
When the continuously variable unit that the utility model provides is applied on bicycle, speed change is changed into a matching zipper saw disc by tower multichain chain wheel, speed change is carried out by the change of matching zipper saw disc diameter, both the jiggly shortcoming of present speed change has been overcome, possesses again infinite variable speed characteristic, and manipulation is simple, improves comfort level when user uses.
When being applied to industrial, regulate the flexible unlike bicycle of moment, not draw from driving wheel by control stalk, but it is flexible to carry out adjustment by one or two with a turn big gear wheel for reverse control driven by motor gearbox body inside, converter speed ratio is larger, and the relatively most of continuously variable unit of auxiliary transmission mechanism is more simple.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.
Fig. 1 is the structural representation of continuously variable unit disclosed in the utility model;
Fig. 2 is the structural representation of gearbox body disclosed in the utility model;
Fig. 3 is the structural representation that continuously variable unit disclosed in the utility model is applied on bicycle;
Fig. 4 is control stalk part-structure schematic diagram in Fig. 3;
Fig. 5 is the structural representation of inner sleeve;
Fig. 6 is the structural representation of driven control stalk and ACTIVE CONTROL bar;
Fig. 7 is the structural representation that continuously variable unit disclosed in the utility model is applied in industry;
Fig. 8 is the back view of Fig. 7.
Wherein, 1, drive sprocket; 2, chain; 3, gearbox body; 4, big gear wheel; 5, miniature gears; 6, speed change tooth bar; 7, T slot; 8, zipper saw disc or small pulley; 9, pin; 10, frame; 11, finishing bevel gear cuter one; 12, finishing bevel gear cuter two; 13, driven control stalk; 14, ACTIVE CONTROL bar; 15, inner sleeve; 16, outer sleeve; 17, transport tape or chain; 18, front buncher; 19, rear buncher; 20, tension wheel.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
The utility model provides a kind of continuously variable unit, structure as shown in Figure 1, and this device speed change is steady, can realize stepless change.
Continuously variable unit as shown in Figure 1, comprise discoid gearbox body 3, be provided with big gear wheel 4 and 6 miniature gearss 5 in gearbox body 3, big gear wheel 4 is positioned at the center of gearbox body 3, miniature gears 5 engagement is distributed in big gear wheel 4 periphery, and each miniature gears 5 side is engaged with speed change tooth bar 6; With reference to figure 2, gearbox body 3 radially offers 6 T slots 7, speed change tooth bar 6 activity is embedded in T slot 7, and stretches out outside gearbox body 3; Speed change tooth bar 6 end is provided with zipper saw disc 8 by pin 9, and pin 9 place is also provided with anti-jamming coordination organization.
As can be seen from Figure 1, the thickness of miniature gears 5 is greater than big gear wheel 4, and speed change tooth bar 6 is positioned at the top of big gear wheel 4, and speed change tooth bar 6 at the upper direction of big gear wheel 4 place plane, can increase the scope of speed change.
Embodiment one:
With reference to figure 3, be applied in bicycle by above-mentioned continuously variable unit, left side is continuously variable unit, be arranged on trailing wheel with trailing wheel concentric, be used for replacing the transmission system of existing variable speed bicycle; Right side be drive sprocket 1, identical with existing bicycle, chain 2 through tension wheel 20 around on it.Big gear wheel 4 is connected with drive sprocket 1 by control stalk, big gear wheel 4 rotation driving pinion 5, and miniature gears 5 rotates and drives gear teeth bar 6 to seesaw, and realizes the integral telescopic of speed change tooth bar 6, thus realizes the object of change-speed box reducing.
Control part is specifically shown in Fig. 4, Fig. 5 and Fig. 6, is fixed in frame 10 in the middle part of control stalk, and frame 10 two ends are connected with the center shaft of drive sprocket 1 and big gear wheel 4 respectively by finishing bevel gear cuter 1, and the two ends of control stalk are engaged with finishing bevel gear cuter 1 by finishing bevel gear cuter 2 12.Control stalk comprises the driven control stalk 13 be connected with big gear wheel 4, the ACTIVE CONTROL bar 14 be connected with drive sprocket 1 and connects inner sleeve 15 and the outer sleeve 16 of driven control stalk 13 and ACTIVE CONTROL bar 14, and outer sleeve 16 is fixed in frame 10.Inner sleeve 15 two ends are dental clutch structure, can move axially in outer sleeve 16, realize with the engagement of driven control stalk 13 and ACTIVE CONTROL bar 14 or are separated.
This device has three mode of operations: normal driving process, acceleration phase and decelerating phase.
1) normal driving process: in normal traveling, inner sleeve 15 moves to limit on the right-right-hand limit position, and inner sleeve 15 is only connected with ACTIVE CONTROL bar 14, be separated with driven control stalk 13, the control stalk of both sides without connection, now, driven control stalk 13 and ACTIVE CONTROL bar 14 independently moving; Big gear wheel 4 and gearbox body 3 rotate with same angular velocity with drive sprocket 1, and speed change tooth bar 6 and miniature gears 5 are without relatively rotating, and zipper saw disc 8 is relative with speed change tooth bar 6 fixing, and chain 2 transferring power, bicycle normally travels.
2) acceleration phase: namely transmitting ratio increases the stage, inner sleeve 15 moves to left-limit position, inner sleeve 15 and driven control stalk 13 engage each other, now, the friction side friction of inner sleeve 15 and outer sleeve 16, inner sleeve 15 drives driven control stalk 13 to reduce by friction rotating speed, and then big gear wheel 4 rotating speed to be connected with driven control stalk 13 reduces, drive sprocket 1 is rotated further simultaneously, the big gear wheel 4 of continuously variable unit is reversed relative to gearbox body 3, thus drive miniature gears 5 to relatively rotate, speed change tooth bar 6 is driven to move (namely the relative gearbox body 3 of speed change tooth bar 6 shrinks) to internal diameter direction, thus reach the object that the change-speed box internal diameter in left side is diminished, driven by right side drive sprocket 1 again, thus realize the effect of bicycle acceleration.
3) decelerating phase: namely transmitting ratio reduces the stage, inner sleeve 15 moves to midway location, inner sleeve 15 connects driven control stalk 13 and ACTIVE CONTROL bar 14 simultaneously, driven control stalk 13 and ACTIVE CONTROL bar 14 synchronous axial system, because the finishing bevel gear cuter chain gear ratio outside control stalk is greater than 1, in control stalk synchronous axial system process, finishing bevel gear cuter has accelerating function.Power is input to the big gear wheel 4 with continuously variable unit from drive sprocket 1, big gear wheel 4 is rotated forward, thus drive miniature gears 5 to relatively rotate, speed change tooth bar 6 outward radial is driven to move (namely the relative gearbox body 3 of speed change tooth bar 6 is expanded), thus reach make left side change-speed box internal diameter become large object, driven by right side drive sprocket 1 again, thus realize the effect of bicycle deceleration.
The continuously variable unit that the utility model provides changes speed change into a matching zipper saw disc by multichain chain wheel, speed change is carried out by the change of matching zipper saw disc diameter, both the jiggly shortcoming of speed change that present market orientation is low and middle-end bicycle has been overcome, possesses again infinite variable speed characteristic, and manipulation is simple, improves comfort level when user uses.
Embodiment two:
This continuously variable unit is applied in industry, as shown in Figure 7 and Figure 8, adopts two cover continuously variable units, chain or transport tape 17 can be adopted to walk around zipper saw disc or the small pulley 8 of continuously variable unit.Two cover continuously variable units are arranged in same frame 10, front and back axis horizontal arrangement; The big gear wheel 4 of two cover continuously variable units is connected with front buncher 18 and rear buncher 19 respectively.Two motors drive inner big gear wheel 4 to rotate by rotating, and realize speed change with this.
When running normally, two motors do not act on, and namely transmission system is inoperative;
When transmitting ratio needs to increase, rear buncher 19 rotates, speed change tooth bar radial shrinkage after driving, front buncher 18 rotates, and before driving, speed change tooth bar radial direction expands, the fitting circle expansion of front continuously variable unit, the fitting circle of rear continuously variable unit reduces, thus transmitting ratio is increased;
When transmitting ratio needs to reduce, rear buncher 19 rotates, and after driving, speed change tooth bar radial direction expands, front buncher 18 rotates, speed change tooth bar radial shrinkage before driving, and the fitting circle of front continuously variable unit reduces, the fitting circle expansion of rear continuously variable unit, thus transmitting ratio is reduced.
Because two motor in synchrony run, and two motor steerings are contrary, and all the other each parameters (as rotating speed, rotation time etc.) are identical, therefore this control program is without the need to tightening device.
It should be noted that, when applying in the industry, also can adopt a set of continuously variable unit, can realize equally changing transmitting ratio.
This continuously variable unit is mainly reflected in can the step-less adjustment expansion that realizes fitting circle reduces in the application of industrial aspect, and then changes transmitting ratio.For the stepless shift function that the change of transmitting ratio is formed, cushion drive occasion can be widely used in, realize improving V belt translation, chain-drive.Applicable field comprises:
1, lathe: the live spindle of this device and lathe is used in combination, namely the live spindle of lathe and driven big gear wheel are coaxially fixed, lathe realizes stepless change by the transmission motor to live spindle, because rotating speed regulates continuously, not only can extend the life-span of machine tool drive part, more make whole course of processing controllability stronger.
2, packing machine, trademark plastering machine etc.: the driven big gear wheel of belt pulley and this continuously variable unit coaxially fixed, when driven big gear wheel carries out stepless change, the belt pulley of transmission machine can realize stepless change, thus drives belt conveyor to realize stepless change adjustment.
3, textile machine, as rapier loom, application continuously variable unit, to realize the change to weaving speed.
4, cement machinery, food machinery, handrail-type elevator, farm machinery (lawnmower, reaper etc.).
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a continuously variable unit, comprises gearbox body, it is characterized in that, is provided with big gear wheel and several miniature gears in described gearbox body, and described miniature gears engagement is distributed in big gear wheel periphery, and each miniature gears side is engaged with speed change tooth bar; Described gearbox body radially offers T slot, and the activity of described speed change tooth bar is embedded in described T slot, and stretches out outside described gearbox body; Described speed change tooth bar end is provided with zipper saw disc.
2. continuously variable unit according to claim 1, is characterized in that, the thickness of described miniature gears is greater than big gear wheel, and described speed change tooth bar is positioned at the top of big gear wheel.
3. continuously variable unit according to claim 1, is characterized in that, described gearbox body is discoid, and described big gear wheel is positioned at the center of gearbox body.
4., according to the arbitrary described continuously variable unit of claim 1-3, it is characterized in that, described miniature gears and speed change tooth bar have 6 respectively, are uniformly distributed in the periphery of big gear wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669283.9U CN204916042U (en) | 2015-08-31 | 2015-08-31 | Slepless transmission arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669283.9U CN204916042U (en) | 2015-08-31 | 2015-08-31 | Slepless transmission arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN204916042U true CN204916042U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520669283.9U Expired - Fee Related CN204916042U (en) | 2015-08-31 | 2015-08-31 | Slepless transmission arrangement |
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| Country | Link |
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| CN (1) | CN204916042U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035251A (en) * | 2015-08-31 | 2015-11-11 | 青岛科技大学 | Stepless speed change device and application thereof |
| CN107744849A (en) * | 2017-11-03 | 2018-03-02 | 盐城工学院 | A kind of gyratory crusher and crushing system |
-
2015
- 2015-08-31 CN CN201520669283.9U patent/CN204916042U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035251A (en) * | 2015-08-31 | 2015-11-11 | 青岛科技大学 | Stepless speed change device and application thereof |
| CN107744849A (en) * | 2017-11-03 | 2018-03-02 | 盐城工学院 | A kind of gyratory crusher and crushing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |