CN203685910U

CN203685910U - Coupling

Info

Publication number: CN203685910U
Application number: CN201420044075.5U
Authority: CN
Inventors: 吴华
Original assignee: Changzhou Vocational Institute of Light Industry
Current assignee: Changzhou Vocational Institute of Light Industry
Priority date: 2014-01-23
Filing date: 2014-01-23
Publication date: 2014-07-02
Anticipated expiration: 2024-01-23

Abstract

The utility model relates to a coupling. The coupling comprises a pair of coupling halves and a locking sleeve, wherein adjacent ends of butt joint shafts are sleeved with the coupling halves respectively and are jointly sleeved with the locking sleeve. The two ends of the locking sleeve are respectively provided with external threads. Each coupling half comprises an elastic inner sleeve and a locking outer sleeve, wherein the elastic inner sleeve is in the shape of a hollow circular truncated cone and used for being arranged at the end of the corresponding butt joint shaft in a sleeved mode with the inclined surface facing outwards, the inner wall of the outer end of the locking outer sleeve is matched with the inclined surface of the elastic inner sleeve, and the inner wall of the inner end of the locking outer sleeve is in screw-thread fit with the locking sleeve and makes the bottom of the locking sleeve extrude the end face of the elastic inner sleeve so that the coupling half can be fixed to the corresponding shaft end. According to the coupling, errors of coaxiality, run-out and drifting between the two butt joint shafts can be eliminated through the locking sleeve, and therefore the shafts can rotate more steadily at a high speed with small rotating impact and large transmitted torque.

Description

A kind of coupling

Technical field

The utility model relates to a kind of coupling.

Background technique

In cold bed, drag-over unit, steel-pushing machine and other equipment of metallurgical equipment, the rotary component such as cam or wiper arm is housed on the axle of being everlasting, be used for lifting and stir workpiece.In the time that workpiece is very long, just need to be by many axle axial series, make cam, wiper arm while, synchronous working on each axle.Existing what adopt for the series connection of many axles is common coupling, is difficult to guarantee that each axle of connecting can strict centering and relative displacement does not occur at work.

Model utility content

The technical problems to be solved in the utility model is to provide a kind of each axle that is suitable for connecting and in rotary course, keeps synchronous coupling.

In order to solve the problems of the technologies described above, the utility model provides a kind of coupling, comprise: a pair of for being sheathed on respectively the half-coupling on the abutting end of abutment shaft, for be set in the locking sleeve on the abutting end of described abutment shaft simultaneously, the two ends of this locking sleeve are respectively equipped with outside thread; Described half-coupling comprises: elasticity inner sleeve and locking jacket; Elasticity inner sleeve is hollow frustoconic shape, for be set in the end of described abutment shaft in inclined-plane mode outwardly; The inwall of the outboard end of described locking jacket coordinates with the inclined-plane of described elasticity inner sleeve, the inwall of the medial extremity of this locking jacket and described locking sleeve screw-thread fit, and make the bottom of described locking sleeve can push the end face of described elasticity inner sleeve, so that described half-coupling is fixed on corresponding axle head.

Further, on the sidewall of described elasticity inner sleeve, there is the opening of axial distribution, and in this opening, be provided with for being connected to the overload protection pin on shaft end, so that described half-coupling is axially fixed at corresponding axle head.

Technique scheme of the present utility model has the following advantages compared to existing technology: the utility model is that half-coupling is circumferentially fixed on adjacent axle head by the cooperation of elasticity inner sleeve and locking jacket and locking sleeve, and locking jacket when rotated can rotatingshaft; And by locking sleeve can eliminate coaxality between two abutment shafts, beat, the margin of error of play, make axle more steady in high speed rotating process, the impact of rotation is little, the moment of transmission is large.

Accompanying drawing explanation

For content of the present utility model is more likely to be clearly understood, below the specific embodiment by reference to the accompanying drawings of basis, the utility model is described in further detail, wherein

Fig. 1 is the structural representation of coupling of the present utility model;

Fig. 2 is the structural representation of half-coupling of the present utility model.

Wherein, locking sleeve 1, elasticity inner sleeve 2, locking jacket 3, overload protection pin 4, spanner fixed hole 5, exhaust port 6.

Embodiment

Below in conjunction with drawings and Examples, the present invention is described in detail:

See Fig. 1 and 2, a kind of coupling, comprising: the half-coupling on a pair of abutting end that is sheathed on respectively abutment shaft, and for be set in the locking sleeve 1 on the abutting end of described abutment shaft simultaneously, the two ends of this locking sleeve 1 are respectively equipped with outside thread; Described half-coupling comprises: elasticity inner sleeve 2 and locking jacket 3; Elasticity inner sleeve 2 is hollow frustoconic shape, for be set in the end of described abutment shaft in inclined-plane mode outwardly; The inwall of the outboard end of described locking jacket 3 coordinates with the inclined-plane of described elasticity inner sleeve 2, the inwall of the medial extremity of this locking jacket 3 and described locking sleeve 1 screw-thread fit, and make the bottom of described locking sleeve can push the end face of described elasticity inner sleeve 2, so that described half-coupling is fixed on corresponding axle head.

Fig. 1 is a complete coupling, and wherein right side is sectional view.

In the time of assembling, described locking jacket 3 is suitable for rotating (with respect to locking sleeve 1, screw-thread fit) so that be positioned at the locking jacket 3 of axle head and move to the inside, locking jacket 3 medial movement band dynamic elasticity inner sleeves 2 also move to the inside, when the bottom surface, left side of elasticity inner sleeve 2 and locking sleeve 1 one end are during towards extruding, force described half-coupling to be circumferentially fixed on corresponding axle head.

On the sidewall of described elasticity inner sleeve 2, there is the opening of axial distribution, and in this opening, be provided with for being connected to the overload protection pin 4 on shaft end, so that described half-coupling is axially fixed at corresponding axle head.

The tapering of the outer side surface of described elasticity inner sleeve 2 is 1:10.

Described half-coupling also comprises: spanner fixed hole 5 and exhaust port 6.

Obviously, above-described embodiment is only for the utility model example is clearly described, and is not the restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all mode of executions.And these belong to apparent variation that spirit of the present utility model extended out or variation still among protection domain of the present utility model.

Claims

1. a coupling, is characterized in that comprising: a pair of for being sheathed on respectively the half-coupling on the abutting end of abutment shaft, for be set in the locking sleeve on the abutting end of described abutment shaft simultaneously, the two ends of this locking sleeve are respectively equipped with outside thread;

Described half-coupling comprises: elasticity inner sleeve and locking jacket; Elasticity inner sleeve is hollow frustoconic shape, for be set in the end of described abutment shaft in inclined-plane mode outwardly;

The inwall of the outboard end of described locking jacket coordinates with the inclined-plane of described elasticity inner sleeve, the inwall of the medial extremity of this locking jacket and described locking sleeve screw-thread fit, and make the bottom of described locking sleeve can push the end face of described elasticity inner sleeve, so that described half-coupling is fixed on corresponding axle head.