CN201944140U

CN201944140U - Bidirectional clutch

Info

Publication number: CN201944140U
Application number: CN2011200223336U
Authority: CN
Inventors: 王河
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-24
Filing date: 2011-01-24
Publication date: 2011-08-24
Anticipated expiration: 2021-01-24

Abstract

The utility model discloses a bidirectional clutch, which comprises an input end and an output end. A plunger is arranged in an inner chamber of the input end, and a compression spring is arranged in an inner chamber of the plunger. One end of the compression spring is connected with an ejector rod, and the other end of the compression spring is connected with a top cover. At least two radial slots are arranged at the input end, and slanting blocks which are matched with shapes of the plunger surfaces are arranged in the radial slots. Rollers are arranged in the slanting blocks which are stored in the radial slots with the rollers through a torsional spring. An inner chamber of the output end comprises at least two curves, each curve comprises an A arc line equal to a radius of the roller and a B arc line which is tangential to the A arc line and becomes larger gradually in radius of curvature. The bidirectional clutch has the advantages that the positive and negative rotation direction can both be integrated and segregated, the input end and the output end can be converted to each other, during running, the integration and segregation are stable without impacts, and the states of the integration and segregation have no friction loss.

Description

A kind of twin-direction clutch

Technical field

The utility model relates to a kind of clutch, relates in particular to a kind of combination and the twin-direction clutch that separates automatically in operation process.

Background technique

Usually the combination of mechanical clutch is divided into embedded and two kinds of friction types.Embedded clutch is combined with impact, the combination in the incompatibility operation process; The cohesive process of friction type is steady, but its frictional loss is big, and the moment of torsion that is transmitted is little, and clutch boundary dimension is big.

Summary of the invention

The purpose of this utility model is exactly the shortcoming at prior art, and provide a kind of boundary dimension little, steadily combination and the twin-direction clutch that separates and do not have frictional loss in operation process, the technological scheme that adopts is: a kind of twin-direction clutch, comprise input end and output terminal, in the inner chamber of input end, piston is arranged, it is characterized in that: in the inner chamber of described piston pressure spring is housed, an end of described pressure spring links to each other with push rod, and the other end links to each other with top cover; Described input end has at least 2 radial grooves, and the skewback that matches with the piston face shape is housed in the described radial groove, in the described skewback roller is housed, and described skewback and roller are remained in the described radial groove by torsion spring; The inner chamber of described output terminal comprises at least 2 sections curves, and every section curve comprises the A camber line that equates with described roller radius and tangent and radius of curvature becomes big B curved portion gradually with described A camber line part.

The technical solution of the utility model also has: the number of described radial groove is 3.

The technical solution of the utility model also has: described piston is a tapered piston.

The technical solution of the utility model also has: between described input end and the output terminal bearing is arranged.

The technical solution of the utility model also has: in the spacing hole of described skewback limited post is arranged, the outside of described limited post contacts with described torsion spring.

The beneficial effects of the utility model are: positive and negative two rotation directions can both in conjunction with separate; Input end and output terminal can be changed mutually; In operation process in conjunction with separate steady nothing and impact; In conjunction with and separated state all do not have frictional loss; Can be widely used in various mechanical moment of torsion transmission, rate conversion, operating modes such as speed reverse.

Description of drawings

Accompanying drawing 1 is the structural representation of this clutch, and accompanying drawing 2 is that the D-D of accompanying drawing 1 is to view.Wherein, the 1st, input end, the 2nd, tapered piston, the 3rd, pressure spring, the 4th, torsion spring, the 5th, skewback, the 6th, roller jump ring, the 7th, roller, the 8th, output terminal, the 9th, push rod, the 10th, top cover, the 11st, limited post, the 12nd, spacing hole, the 13rd, bearing.

Embodiment

Below in conjunction with accompanying drawing, the utility model is specifically described.This clutch has comprised input end 1 and output terminal 8, tapered piston 2 is arranged in the inner chamber of input end 1, tapered piston 2 can move along the axial direction of input end 1 under the hydraulic oil effect, pressure spring 3 is housed in the inner chamber of tapered piston 2, one end of pressure spring 3 links to each other with push rod 9, and the other end links to each other with top cover 10.Input end 1 has at least 2 radial grooves, the skewback 5 that matches, can radially move with tapered piston 2 surface configurations is housed in the radial groove, being equipped with in the skewback 5 can be around the roller 7 of self axis rotation, roller 7 and skewback 5 are linked together by roller jump ring 6, skewback 5 remains in the radial groove with roller 7 under the pretightening force effect of torsion spring 4, and comprising at least 2 sections curves at the inner chamber of output terminal 8, every section curve comprises the A camber line that equates with the roller radius and tangent and radius of curvature becomes big B curved portion gradually with A camber line part.

In the cohesive process, tapered piston 2 overcomes pressure spring 3 under the effect of hydraulic oil pretightening force moves vertically, promoting skewback 5 and roller 7 simultaneously radially slides, stretch out input end 1, the side of roller 7 contacts with the inner chamber of output terminal 1, and output terminal 1 inner cavity surface on roll, in the time of rolling, the speed discrepancy of input end 1 and output terminal 8 constantly reduces.Because the B section is served as reasons middle to the gradually little arc curve of two ends radius of curvature, the inner cavity surface of output terminal 1 is given roller 7 reciprocal extruding forces all the time in rolling process, when roller 7 is rolled near the A section circular arc of output terminal 1 inner chamber zone, and this moment input end 1 and output terminal 8 rotating speed near equating, so roller 7 is embedded into the A section and does not have impact when regional.Roller 7 stops to roll after being embedded into A section zone, the complete combination of clutch at this moment, and input end 1 formally transmits torque to output terminal 8.

Clutch fully in conjunction with after, input end 1 directly transmits torque to output terminal 8 by roller 7, so transmitting torque is big and do not have a power loss; When clutch need separate, hydraulic oil refluxed, and tapered piston 2 is return under the effect of pressure spring 3, and skewback 5 and roller 7 are withdrawn under the effect of torsion spring 4 in the input end 1, clutch separation; After the clutch separation, have only bearing 13 to connect between input end 1 and the output terminal 8, therefore do not have frictional loss.

Certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model also is not limited only to above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also belong to protection domain of the present utility model.

Claims

1. a twin-direction clutch comprises input end and output terminal, in the inner chamber of input end piston is arranged, and it is characterized in that: in the inner chamber of described piston pressure spring is housed, an end of described pressure spring links to each other with push rod, and the other end links to each other with top cover; Described input end has at least 2 radial grooves, and the skewback that matches with the piston face shape is housed in the described radial groove, in the described skewback roller is housed, and described skewback and roller are remained in the described radial groove by torsion spring; The inner chamber of described output terminal comprises at least 2 sections curves, and every section curve comprises the A camber line that equates with described roller radius and tangent and radius of curvature becomes big B curved portion gradually with described A camber line part.

2. according to the described twin-direction clutch of claim 1, it is characterized in that: the number of described radial groove is 3.

3. according to the described twin-direction clutch of claim 1, it is characterized in that: described piston is a tapered piston.

4. according to the described twin-direction clutch of claim 1, it is characterized in that: between described input end and the output terminal bearing is arranged.

5. according to the described twin-direction clutch of claim 1, it is characterized in that: in the spacing hole of described skewback limited post is arranged, the outside of described limited post contacts with described torsion spring.