CN201277280Y - Engaging apparatus - Google Patents

Abstract

The utility model relates to a meshing device which unidirectionally transfers torque in systems such as a switching operating mechanism and the like, which need to do mechanical transmission. The meshing device comprises a first rotating piece and a second rotating piece, wherein a middle rotating piece which can axially move and rotate is arranged between the first rotating piece and the second rotating piece, the rear end surface of the middle rotating piece is clung to the front end surface of the first rotating piece, and opposite semi ellipsoidal pits are arrayed on the joint surface, and each pit is end-to-end connected to form a complete ellipsoidal inner cavity, a steel ball is arranged in the ellipsoidal inner cavity, the front end surface of the middle rotating piece is closed to the rear end surface of the second rotating piece, and projections and grooves which can be mutually geared or separated are arranged on the front end surface of the middle rotating piece and the rear end surface of the second rotating piece. The meshing device has simple structure, convenient manufacture and installation, and stable and reliable operation, and achieves the purpose of one-way transmission.

Description

Geared assembly

Technical field

The utility model relates to a kind ofly need carry out carrying out in the mechanically operated system geared assembly of unidirectional delivery moment of torsion at switch operating mechanism etc.

Background technique

In the machine driven system of kind transmission special mechanisms such as switch operating mechanism, often need to carry out the unidirectional delivery of moment of torsion, that is, first rotating shaft can drive second rotating shaft and rotate when rotating, and when second rotating shaft is rotated by the miscellaneous part drive, can not drive first rotating shaft again.For example, in the operating device of switch, the manually-operable axle can drive switch spindle when rotating under operator's operation, and switch spindle then can not drive the manually-operable axle when rotating under the drive of other mechanisms (as motor drive mechanism).Traditionally, finish such one-way operation needs complicated mechanism to realize, the manufacturing of mechanism and installation inconvenience, and reliability of operation is not high yet.

Summary of the invention

Technical problem to be solved in the utility model is, but the geared assembly of a kind of simple in structure, manufacturing and easy for installation, reliable unidirectional delivery moment of torsion is provided.

Geared assembly of the present utility model includes first rotating component and second rotating component that rotatingshaft overlaps; Being provided with one between first rotating component and second rotating component can move axially and rotating middle rotating component; The ear end face of middle rotating component and the front-end face of first rotating component fit, and on the same circumference on the faying surface, be placed with the many pits on the rotating component ear end face and the first rotating component front-end face in the middle of laying respectively to relative semielliptical shape, each is mounted with a steel ball to complete elliposoidal inner chamber of the involutory formation of pit in this elliposoidal inner chamber; The front-end face of middle rotating component is near the ear end face of second rotating component, and the ear end face of the front-end face of middle rotating component and second rotating component is provided with the projection and the groove that can be meshing with each other or separate.The ear end face of described second rotating component is provided with an inner cavity, is mounted with a stage clip in inner cavity, the front end of rotating component in the middle of the rear end of stage clip withstands on.

The utility model is simple in structure, manufacturing and easy for installation, and torque can pass to second rotatingshaft by first rotating component, and can't pass to first transmission shaft by second rotatingshaft, has realized the purpose of unidirectional delivery, and stable, reliable.

Description of drawings

Fig. 1 is the utility model embodiment's an axial sectional structure schematic representation.

Embodiment

As shown in the figure, this device has coaxial first rotating component 1 that is arranged in order, middle rotating component 2 and second rotating component 3, the first rotating component front-end face and middle rotating component ear end face are provided with paired pit 4, and each is combined to form the inner chamber of elliposoidal to pit, is mounted with steel ball 5 in this inner chamber.

When first rotating component 1 rotates, each moves being staggeredly located of pit 4, force steel ball to shift to the edge of pit, because the pit edge space is narrower and small, thereby steel ball axially ejects middle rotating component 2 forward, projection 6 in the middle of making on rotating component 2 front-end faces is meshed with the groove 7 on second rotating component, 3 ear end faces, and the at this moment middle rotating component 2 and second rotating component 3 just can rotate with first rotating component;

Under second driving of rotating component 3, rotate in other mechanisms, when its rotating speed surpasses first rotating component 1, the pit 4 that offsets on the middle rotating component and first rotating component can return to the position that faces again, steel ball 5 is also got back to the bottom of pit, at this moment rotating component 2 just moves backward and projection 6 and groove 7 is separated at the effect lower shaft of stage clip 8 in the middle of, and first rotating component 1 can not rotated with second rotating component 3.

Claims (2)

1, a kind of geared assembly includes first rotating component (1) and second rotating component (3) that rotatingshaft overlaps, it is characterized in that: be provided with one and can move axially and rotating middle rotating component (2) between first rotating component (1) and second rotating component (3); The ear end face of middle rotating component and the front-end face of first rotating component fit, and on the same circumference on the faying surface, be placed with the many pits (4) on the rotating component ear end face and the first rotating component front-end face in the middle of laying respectively to relative semielliptical shape, each is mounted with a steel ball (5) to complete elliposoidal inner chamber of the involutory formation of pit in this elliposoidal inner chamber; The front-end face of middle rotating component (2) is near the ear end face of second rotating component (3), and the ear end face of the front-end face of middle rotating component and second rotating component is provided with the projection (6) and the groove (7) that can be meshing with each other or separate.

2, geared assembly according to claim 1 is characterized in that: the ear end face of described second rotating component (3) is provided with an inner cavity, is mounted with a stage clip (8) in inner cavity, the front end of rotating component (2) in the middle of the rear end of stage clip withstands on.

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