CN205244274U - Pulley and flexible rope winding transmission structure - Google Patents

Pulley and flexible rope winding transmission structure Download PDF

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Publication number
CN205244274U
CN205244274U CN201521049689.3U CN201521049689U CN205244274U CN 205244274 U CN205244274 U CN 205244274U CN 201521049689 U CN201521049689 U CN 201521049689U CN 205244274 U CN205244274 U CN 205244274U
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Prior art keywords
pulley
drive
transmission
flexible rope
utility
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CN201521049689.3U
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施勤
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施勤
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Abstract

The utility model relates to a mechanical transmission technical field is a pulley and flexible rope winding transmission structure particularly, and first driving source is connected to the one end of flexible rope, and flexible rope winding sets up on a plurality of driven pulleies, and the second driving source is connected to the other end of flexible rope, overall arrangement about a plurality of driven pulleies, above -mentioned transmission pulley mounting on the same axis, following transmission pulley mounting to another radical axis, the following one -way bearing of transmission pulley mounting. The utility model discloses use flexible knot to construct and pulley assembly, as drive and linkage structure, the winding is on pulley recess surface and connect the driving source at both ends, and drive trolley locking function rotatory and through one -way bearing in turn produces the drive and does all can to drive by the rotation of drive object, can effectively reduce the weight of driver part, and reduce traditional mechanical transmission's volume, improve acting efficiency, be fit for using on the equipment that uses reciprocal driving form.

Description

A kind of pulley and flexible strand are wound around drive mechanism
[technical field]
The utility model relates to mechanical transmissioning technology field, is that a kind of pulley and flexible strand are wound around biography specificallyMoving structure.
[background technology]
Machine driving has various ways, mainly can be divided into two classes: 1. by the frictional force transferring power between parts andThe frictional drive of motion, comprises band transmission, pulley transmission and friction pulley transmission etc., and frictional drive easily realizes nothingLevel speed change, can adapt to greatly the transmission occasion that distance between axles is larger, and overload is skidded and can also be played buffering and protection transmissionThe effect of device, but this transmission generally can not be used for powerful occasion, can not ensure transmission accuratelyRatio; 2. engage or engage by middleware the engaged transmission of transferring power or motion with driven member by driving link,Comprise gear drive, chain transmission, worm drive and harmonic drive etc., engaged transmission can be used in powerfulOccasion, gearratio is accurate, but the higher accuracy of manufacture and the installation accuracy of General Requirements.
Pulley transmission is used for lifting industry, and typical pulley is to take turns around the circle of central shaft rotation,The periphery of circle wheel has groove, and rope is wound in to groove, firmly arbitrary end at rope for traction two ends,Frictional force between rope and circle wheel can impel round and smooth wheel around central shaft to rotate. Pulley be actually distortion,The lever that can rotate. The main function of pulley is tractive load, change application of force direction, through-put power etc. ByThe machinery of the common composition of multiple pulleys is called assembly pulley, and the operation rate of machinery of assembly pulley is larger, can tractiveHeavy load is the important component part of hoisting machinery. Assembly pulley is by the fixed pulley of some and moving slidingTake turns and walk around their rope composition, but the combination form of existing assembly pulley is comparatively single.
[utility model content]
The utility model is with specific pulley winding construction,, is carried as driving and linkage structure by flexible strandFor being a kind ofly suitable for transmission space compactness, drive that layout is simple, the pulley of novel structure and flexible strand windingDrive mechanism.
To achieve these goals, design a kind of pulley and flexible strand and be wound around drive mechanism, one end of flexible strandConnect the first drive source, flexible strand is wound around and is arranged on some driven pulleies, and the other end of flexible strand connects theTwo drive sources, some driven pulley top-bottom layout, driven pulley is above arranged on same axis, belowDriven pulley be installed on another root axle, driven pulley is below installed unilateral bearing.
Compared with the existing technology, its advantage is the utility model:
The utility model uses flexible strand structure and pulley combination, as driving and linkage structure, is wrapped in cunningWheel groove surfaces also connects the drive source at two ends, in the time of the first drive source acting, and by winding mechanism, canAllow the drive source of other be returned to acting position, realize interlock, and coordinate unilateral bearing, drive pulleyThe latch functions generation driving force of alternately rotating and pass through unilateral bearing, is driven object to rotate thereby drive,Can effectively reduce the weight of driver part, and reduce traditional mechanically operated volume, improve mechanical efficiency,Be applicable to being applied on the equipment that uses reciprocal drive form.
[brief description of the drawings]
Fig. 1 is that the winding of the utility model middle pulley and flexible strand is related to schematic diagram;
Fig. 2 is the side schematic view of the utility model middle pulley and flexible strand;
Fig. 3 is that the A-A of the utility model Fig. 2 is to view;
Fig. 4 is that the B-B of the utility model Fig. 2 is to view;
Fig. 5 is that the C-C of the utility model Fig. 2 is to view;
Fig. 6 is that the D-D of the utility model Fig. 2 is to view;
Fig. 7 is the transmission principle schematic diagram of the utility model middle pulley and flexible strand;
In figure: 1. driven pulley 2. flexible strand 3. axle 4. first drive sources 5. second driveMoving source 6. unilateral bearing 7. driving wheels;
Specify Fig. 1 as Figure of abstract of the present utility model.
[detailed description of the invention]
Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this device and principle are to this speciallyThe people of industry is very clearly. Should be appreciated that specific embodiment described herein is only in order to explainThe utility model, and be not used in restriction the utility model.
As shown in Fig. 1 to 7, be that a kind of pulley and flexible strand are wound around drive mechanism, wherein A, B, C, D, EFor driven pulley, one end of flexible strand connects the first drive source, and flexible strand is wound around and is arranged at some driven pulleiesUpper, the other end of flexible strand connects the second drive source, some driven pulley top-bottom layout, and transmission is above slidingWheel is arranged on same axis, and driven pulley is below installed on another root axle, driven pulley peace belowDress unilateral bearing. Flexible strand, as driving and linkage structure, is wrapped in driven pulley groove surfaces and connects twoThe first drive source and second drive source of end, in the time of the first drive source acting, can allow separately by winding mechanismSecond drive source of outer one is returned to acting position, realizes interlock, coordinates unilateral bearing, when flexible strandWhen two ends reciprocal folding and unfoldings, can drive driven pulley alternately to rotate and the latch functions of passing through unilateral bearing producesDriving force, is driven object to rotate thereby drive.
Its principle is: in the time that flexible strand first drives source to move downward, will drive flexible strand downward, and pass throughCanoe, moves upward the flexible strand of the second driving source, thereby the second drive source is moved upward.In view of two pulleys of downslide wheels all assembled unilateral bearing (in figure the rotatable direction of unilateral bearing for toUnder-clockwise) and the direction of rotation of pulley B and D contrary. In the time that the first drive source moves downward,Pulley B is for turning clockwise, and pulley D is for being rotated counterclockwise. According to unidirectional pulley characteristic, the list of pulley DCan embrace connecting axle to bearing, therefore the rotation of pulley D can drive connecting axle to be rotated counterclockwise, thereby drivesDriving wheel is rotation counterclockwise. In the time that the second drive source traction flexible strand moves downward, equally also will driveThe first drive source moves upward, and the direction of rotation of pulley B is that the direction of pulley D is up time counterclockwise simultaneouslyPin, pulley B is rotated counterclockwise drive connecting axle, thereby drives driving wheel rotation.
By constantly back and forth moving up and down of flexible strand the first drive source, the second drive source two ends, can makeDriving wheel ceaselessly, along counterclockwise rotation, becomes continuous power source. Driving wheel can use beltOr the kind of drive such as chain is carried out transferring power to other objects. Flexible strand transmission in the design can be applied realityExample is pedal type bicycle or scooter, by being connected to a side pedal (on pedal by one of flexible strandPulley is installed), be installed on pulley successively according to the layout being wound around simultaneously, then one of flexible strand is connected toAn other side pedal. By up and down reciprocatingly pedal of left and right pin, make below two pulleys constantly along phaseAnti-direction rotation, the action that this structure can be stepped on pin changes into power drive trailing wheel and rotates, takes little effort,Acting utilization rate is high.

Claims (1)

1. pulley and flexible strand are wound around a drive mechanism, it is characterized in that one end of flexible strand connects the first drivingSource, flexible strand is wound around and is arranged on some driven pulleies, and the other end of flexible strand connects the second drive source,Some driven pulley top-bottom layout, driven pulley is above arranged on same axis, and transmission is below slidingWheel is installed on another root axle, and driven pulley is below installed unilateral bearing.
CN201521049689.3U 2015-12-15 2015-12-15 Pulley and flexible rope winding transmission structure Active CN205244274U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521049689.3U CN205244274U (en) 2015-12-15 2015-12-15 Pulley and flexible rope winding transmission structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521049689.3U CN205244274U (en) 2015-12-15 2015-12-15 Pulley and flexible rope winding transmission structure

Publications (1)

Publication Number Publication Date
CN205244274U true CN205244274U (en) 2016-05-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201521049689.3U Active CN205244274U (en) 2015-12-15 2015-12-15 Pulley and flexible rope winding transmission structure

Country Status (1)

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CN (1) CN205244274U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105387157A (en) * 2015-12-15 2016-03-09 施勤 Winding transmission structure and method of pulleys and flexible rope

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105387157A (en) * 2015-12-15 2016-03-09 施勤 Winding transmission structure and method of pulleys and flexible rope

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