CN2325581Y

CN2325581Y - Clutch like coupling

Info

Publication number: CN2325581Y
Application number: CN 98200256
Authority: CN
Inventors: 武玉堂
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-01-09
Filing date: 1998-01-09
Publication date: 1999-06-23
Anticipated expiration: 2008-01-09

Abstract

The utility model discloses a backrest wheel type coupling. The utility model comprises a backrest wheel, a drive pin, etc. The utility model has the improvement that the abutting surfaces of the two backrest wheels are respectively provided with a plurality of convex blocks to space the two backrest wheels, a heat insulation space is formed between the two backrest wheels, and the heat insulation space effectively prevents the heat conduction between an input shaft and an output shaft. The utility model which has a good heat conduction preventing performance is a coupling suitable for various temperature environments.

Description

The wheeled coupling of a kind of backrest

The utility model relates to the wheeled coupling of a kind of improved backrest, belongs to the coupling technical field.

The wheeled coupling of backrest is the device of the connection transmission between a kind of input, the output shaft, and this apparatus structure is simple, reliable operation, is widely used in the various mechanical transmission.This coupling in use owing to two clutches contact closing in large area, thereby very easily transmits heat, and this characteristics are also often brought negative effect.As being used to remove the dust removing machine of heat-exchanger surface dust stratification in the boiler in the power station, when it is worked in high-temperature boiler, the high temperature of its output terminal can be very fast reach input end, make input shaft and coupled motor or other power plant heat up rapidly, working state worsens, service behaviour descends, even damage.For satisfying the normal requirement of using, this dust removing machine also needs the water-cooled heat-insulation chamber is set on transmission shaft, though stoped transmission of heat, because of supporting facility such as need configuration cooling waterpumps, makes deashing device become complicated clumsy.Therefore reducing or eliminate the thermal conduction characteristic of the wheeled coupling of backrest effectively, is the usage requirement that high-temperature work environment proposes the wheeled coupling of backrest.

The purpose of this utility model be to provide a kind of simple in structure, use reliable, can effectively stop the wheeled coupling of heat conducting backrest between input and output shaft.

The purpose of this utility model realizes with following technological scheme:

The wheeled coupling of a kind of backrest, it comprises two clutches and some driving pins etc., its improvement is, is respectively equipped with some projections 4 on the joint surface of described two clutches 1,2, the projection phase closing on the two-wheeled.

Above-mentioned coupling, described projection are distributed on the outer rim of clutch wheel face, and the quantity of each wheel face upper protruding block is 3～6.

According to design of the present utility model, utilize the projection of projection that two clutches are separated, make to form an insulated space between two clutches, because the area of contact of projection is far smaller than the entire area of clutch, therefore, can effectively stop the transmission of heat of input output between centers; Simultaneously, when coupling rotated, the insulated space flow air also can cool to clutch; The utility model is simply to change on the structural type of former clutch, need not increase any auxiliary device, therefore both having guaranteed the simple and service-strong advantage of original structure, and had good prevention heat-conductive characteristic again, is a kind of coupling of using in all temps environment of being suitable for.

Fig. 1 is the utility model structural representation;

Fig. 2 is Figure 1A-A sectional view.

The utility model is described in further detail below in conjunction with accompanying drawing:

Among the figure, the projection 4 on two clutches lays respectively at the diameter edge place of wheel face, and mutually closing contact, and baffle plate 5,6 is stamped at spring column pin 3 two ends, and the axially outer of pin that be used for preventing to turn round moves; Projection should not be too big, if having enough contact strengths both can, for clutch than minor diameter, its projection can directly be processed to form on clutch, for larger-diameter clutch, can on wheel face, install projection additional, can reduce the amount of finish of clutch like this and save material; The sectional shape of projection is not limited to the shape shown in the figure, and is cylindrical, and rectangle is fan-shaped etc. various; Projection also can be made of other heat-resistant material, as heat resistant rubber etc.; The attachment screw hole that 4 screws among Fig. 2 on the wheel face are baffle plate 6.

Claims

1. wheeled coupling of backrest, it comprises two clutches and some driving pins etc., it is characterized in that, is respectively equipped with some projections [4] on the joint surface of described two clutches [1], [2], the projection phase closing on the two-wheeled.

2. coupling according to claim 1 is characterized in that, described projection is distributed on the outer rim of clutch wheel face, and the quantity of each wheel face upper protruding block is 3～6.