CN200952538Y

CN200952538Y - Bidirectional clutch

Info

Publication number: CN200952538Y
Application number: CN 200620105258
Authority: CN
Inventors: 苏太育
Original assignee: NINGBO TONGDA ELECTRICAL APPARATUS SWITCHES FACTORY
Current assignee: NINGBO TONGDA ELECTRICAL APPARATUS SWITCHES FACTORY
Priority date: 2006-06-30
Filing date: 2006-06-30
Publication date: 2007-09-26
Anticipated expiration: 2016-06-30

Abstract

The utility model relates to a bidirectional clutch, including an output clutch plate fitting over the electrical motor output shaft, an upper clutch plate and a lower clutch plate, wherein the lower clutch plate is connected with the electrical motor output shaft transmission, a spring is inserted between the output clutch plate and the upper clutch plate, a notch and a matched protrusion are arranged on the opposite surfaces of the output clutch plate and the upper clutch plate, a circlip capable of moving up and down relative to the electrical motor is arranged on the periphery of the upper clutch plate, at least one pair of opposite cone grooves are arranged in the upper clutch plate and the lower clutch plate, a size-matched ball bearing is inserted into the cone grooves, and meanwhile, the distance between the upper and the lower clutch plates is always less than the diameter of the ball bearing. Compared with the prior art, the utility model has the advantages of skillful and rational design, simple structure, one output terminal all along, and extremely wide industrial applications, and meantime, realizes manual and electric working modes without interference with each other, being very suitable for electric appliances with manual and electric operation modes.

Description

A kind of twin-direction clutch

Technical field

The utility model relates to the technical field of clutch, especially refers to a kind of motor-driven twin-direction clutch that can be had two-way output.

Background technique

Existing clutch is pressed the transmission principle difference, divides castellated, friction type, electromagnetic type, hydraulic type etc.General clutch is unidirectional transmission, promptly can only be subjected to the motor driving of one-way rotation output, but in actual application environment, in the device such as the positive and negative twocouese operation of many needs such as crane, winch, curtain machine, the output of its motor often has positive and negative two sense of rotation, thereby the clutch that cooperates with motor also needs to possess the two-way clutch function accordingly.At present, having occurred the twin-direction clutch that some can be driven by two-way output motor, is that the Chinese utility model patent " bidirectional automatic clutch " of ZL91202043.1 (notification number is CN2091381U) discloses a solution as the patent No..This twin-direction clutch include the driving wheel that is set on the motor output shaft and be arranged on the driving wheel both sides about two followers, cooperate for the ratchet that is meshed between driving wheel and the follower.This scheme is on the basis of traditional jaw clutch, utilize the cooperation of ratchet, making the left follower in two followers is the postive direction output terminal, and the sense of rotation of change driving wheel, driving wheel just breaks away from left follower, and move to another side, mesh with right follower, thereby make this left side follower be the opposite direction output terminal.About the positive and negative output terminal of this twin-direction clutch is respectively two, promptly not on same output terminal, and at present, the application apparatus of many industry has only an input port, therefore, be applied in this twin-direction clutch in the existing commercial Application environment, structurally also need make corresponding modify, cumbersome, and the structure that changes original application apparatus will be brought new design problem and produce extra cost of production; In addition, the clutch mode of this employing ratchet transmission, make the ratchet fracture of gear easily, especially change sense of rotation when driving wheel, this moment, driving wheel and the follower that originally meshed together were that converse direction is rotated, the interreaction force of both ratchets is quite big, like this, very serious to the damage of parts, and when producing, also very high to the required precision that the work hardness of gear and ratchet cooperate, and the working life of whole device is very low.

Summary of the invention

Technical problem to be solved in the utility model is the present situation at prior art, the twin-direction clutch of providing a kind of and be easy to processing and assembling, parts running not damaged, working life being grown when sense of rotation was changed, and this twin-direction clutch has only an output terminal, thereby is more suitable for commercial Application.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: this twin-direction clutch, include the output clutch-plate that is set in successively on the motor output shaft, last clutch-plate and following clutch-plate, wherein, described clutch-plate down links to each other with the output shaft transmission of motor, respectively be provided with a groove opposite at described output clutch-plate with last clutch-plate central authorities, this is to being embedded with a spring among the groove, and on described output clutch-plate and last clutch-plate facing surfaces corresponding at least one pair of reentrant part of working in coordination and lug boss of being provided with, and, the described clutch-plate peripheral cards of going up is provided with a jump ring, and be provided with a projection on the surface of described motor, one end of described jump ring just is set on this projection, clutch-plate is provided with at least one pair of relative cone-shaped groove with following clutch-plate on described, on this, be embedded with the ball that size and this cavity are complementary among the cavity that the cone-shaped groove of following clutch-plate is put together, simultaneously, on this, spacing between the following clutch-plate is all the time less than the diameter of this ball.

This twin-direction clutch; under off position; disconnected from each other between output clutch-plate and the last clutch-plate owing to the active force of spring; the reentrant part that is both does not connect mutually with lug boss; therefore; as external force single driving output clutch-plate just or during counter-rotation; the torsion that the output clutch-plate rotates just can not pass to clutch-plate; protected the motor under the twin-direction clutch; the output of exporting clutch-plate has simultaneously realized that manual, electronic two kinds are not disturbed the working method that is independent of each other mutually, is very suitable for being applied among manual, electronic two kinds of modes of operation electric.

When motor output shaft is done the postive direction rotation, following clutch-plate rotates thereupon, ball in its cone-shaped groove also begins to roll, effect because of spring, make the downward and mutual amalgamation of following clutch-plate of clutch-plate, like this, the cell wall of the cone-shaped groove of clutch-plate is gone up in the friction of the ball of rolling, and clutch-plate carries out the postive direction rotation thereby drive upward; Last clutch-plate there is the effect of damping because of the jump ring of last clutch-plate, clutch-plate is slow under the rotating ratio of last clutch-plate, both rotating speeds are asynchronous, then go up clutch-plate and the interior ball of the middle cavity of following clutch-plate, under the promotion of following clutch-plate cone-shaped groove cell wall, ball is to top offset, thereby clutch-plate moves up in the promotion, like this, last clutch-plate moving up and break away from following clutch-plate and to come gradually, and near the output clutch-plate, on being somebody's turn to do, spacing between the following clutch-plate is all the time less than the diameter of this ball, so ball can not run out of outside the cone-shaped groove all the time, when that of last clutch-plate and output clutch-plate coincide mutually to bump and reentrant part, last clutch-plate just drive was exported clutch-plate and is carried out the postive direction rotation;

And when motor output shaft was made counter-rotation, working principle was no longer repeated with above-mentioned identical.

For strengthening the friction drive of ball to last clutch-plate, described cone-shaped groove can be provided with four pairs uniformly, and described ball also is embedded with four accordingly, and the ball of Dui Chengfenbuing makes clutch-plate also more steady with the one running of following clutch-plate like this.

Be arranged on a pair of reentrant part of working in coordination and the lug boss on output clutch-plate and last clutch-plate surface, can on the output clutch-plate, lug boss be set, on the last clutch-plate reentrant part is set, also can on the output clutch-plate reentrant part be set, on the last clutch-plate lug boss be set, be transmission part but go up clutch-plate, and the output clutch-plate is the passive clutch-plate transmission that is subjected to, therefore, transmission part is good with projection, promptly with the latter be set to good.And for making rotation more steady, what described reentrant part and lug boss can be symmetrical is provided with two pairs.

Compared with prior art, advantage of the present utility model is: the clutch mode that adopts the ball friction driving, by freely changing of ball rotating direction, realize the rotation of clutch-plate different direction, the mode of this rolling friction can defective component itself, working life is longer, and operate nimblely, and this clutch has only an output terminal all the time, promptly export clutch-plate, industrial Applicable scope is very wide; Simultaneously, the output of output clutch-plate has realized that manual, electronic two kinds are not disturbed the working method that is independent of each other mutually, is very suitable for being applied among manual, electronic two kinds of modes of operation electric; In a word, the utility model design is ingenious rationally, and is simple in structure, is easy to processing and assembling, and working life is longer, and can be applied among the various commercial plants.

Description of drawings

Fig. 1 is the utility model embodiment's a structural representation;

Structural representation when Fig. 2 has an effect with the output clutch-plate for going up clutch-plate among the utility model embodiment;

Fig. 3 is the utility model embodiment part three-dimensional exploded view.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1, Fig. 2 and shown in Figure 3, this twin-direction clutch includes the output clutch-plate 2 that is set in successively on motor 1 output shaft 11, goes up clutch-plate 3, clutch-plate 4 and be fastened on the jump ring 5 of clutch-plate 3 peripheries down;

Wherein, described clutch-plate 4 down links to each other with output shaft 11 transmissions of motor 1;

Respectively be provided with a groove opposite 21,31 at described output clutch-plate 2 with last clutch-plate 3 central authorities, this makes clutch-plate 3 have the trend that moves down to being embedded with a spring 6 among the groove;

And on described output clutch-plate 2 and last clutch-plate 3 facing surfaces corresponding two pairs of reentrant part of working in coordination 22 and the lug boss 32 of being provided with, promptly on output clutch-plate 2 symmetry two reentrant part 22 are set, on the last clutch-plate 3 also correspondence two lug bosses 32 are set;

Be provided with four pairs of relative cone-

shaped grooves

33,41 uniformly on clutch-plate 3 and the following clutch-plate 4 on described, among the cavity that the cone-

shaped groove

33,41 of this upper and lower clutch-

plate

3,4 is put together, be embedded with the ball 7 that size and this cavity are complementary, promptly, be embedded with four balls 7 altogether, simultaneously, the spacing between this upper and lower clutch-

plate

3,4 is all the time less than the diameter of this ball 7;

And, be provided with a projection 12 on the surface of motor 1, and an end of described jump ring 5 just is set on this projection 12, thus an end that makes this jump ring 5 relatively motor 1 do the spacing on it of upper and lower displacement.

Working procedure of the present utility model is as follows: when motor 1 output shaft 11 is done the postive direction rotation, following clutch-plate 4 rotates thereupon, ball 7 in its cone-shaped groove 41 also begins to roll, the cell wall of the cone-shaped groove 33 of clutch-plate 3 is gone up in ball 7 frictions of rolling, and clutch-plate 3 carries out the postive direction rotation thereby drive upward; Because of 5 pairs of damping functions that go up clutch-plate 3 of jump ring, clutch-plate 4 is slow under the rotating ratio of last clutch-plate 3, be that both rotating speeds are asynchronous, then go up clutch-plate 3 and the interior ball 7 of following clutch-plate 4 middle cavitys, under the promotion of following clutch-plate 4 cone-shaped grooves 41 cell walls, ball 7 is to top offset, thereby clutch-plate 3 moves up in the promotion, like this, last clutch-plate 3 moving up and break away from following clutch-plate 4 and to come gradually, and near output clutch-plate 2, on being somebody's turn to do, following clutch-plate 3, spacing between 4 is all the time less than the diameter of this ball 7, so ball 7 can not run out of outside the cavity all the time, when that of last clutch-plate 3 and output clutch-plate 2 coincide mutually with reentrant part 22 to bump 32, last clutch-plate 3 just drives to be exported clutch-plate 2 and carries out the postive direction rotation;

And when motor 1 output shaft 11 was made counter-rotation, working principle was no longer repeated with above-mentioned identical;

To sum up, the torsion of the positive and negative twocouese rotation of motor 1 output shaft 11 all can be by 2 outputs of output clutch-plate.

Claims

1, a kind of twin-direction clutch, it is characterized in that: include the output clutch-plate (2) that is set in successively on motor (1) output shaft (11), last clutch-plate (3) and following clutch-plate (4), wherein, described clutch-plate (4) down links to each other with output shaft (11) transmission of motor (1), respectively be provided with a groove opposite (21 at described output clutch-plate (2) with last clutch-plate (3) central authorities, 31), this is to groove (21,31) be embedded with a spring (6) among, and on described output clutch-plate (2) and last clutch-plate (3) facing surfaces corresponding at least one pair of reentrant part of working in coordination and lug boss of being provided with, and, described clutch-plate (3) peripheral cards of going up is provided with a jump ring (5), and be provided with a projection (12) on the surface of described motor (1), one end of described jump ring (5) just is set on this projection (12), clutch-plate on described (3) is provided with at least one pair of relative cone-shaped groove (33 with following clutch-plate (4), 41), clutch-plate on this (3), the cone-shaped groove (33 of following clutch-plate (4), 41) be embedded with the ball (7) that size and this cavity are complementary among the cavity that is put together, simultaneously, clutch-plate (3) on this, spacing between the following clutch-plate (4) is all the time less than the diameter of this ball (7).

2, twin-direction clutch according to claim 1 is characterized in that: described cone-shaped groove (33,41) is provided with four pairs uniformly, and described ball (7) also is embedded with four accordingly.

3, twin-direction clutch according to claim 1 and 2 is characterized in that: what described output clutch-plate (2) was gone up symmetry two reentrant part (22) are set, describedly go up also corresponding two lug bosses (32) that are provided with on the clutch-plate (3).