CN2266054Y

CN2266054Y - Ball universal coupling

Info

Publication number: CN2266054Y
Application number: CN 96221510
Authority: CN
Inventors: 王文杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-11
Filing date: 1996-09-11
Publication date: 1997-10-29
Anticipated expiration: 2006-09-11

Abstract

The utility model relates to a ball universal coupling, which is composed of an internal tooth sheath, a coupling half, an end cover, a middle shaft and a spacer flange. In order to overcome the defects of the existing universal coupling with a spider that a spider nose is easy to break, a main and a supplementary bearings are easy to be damaged and the service life is short, the following design is adopted. The inner surface of the internal tooth sheath and the outer surface of the coupling half are provided with semicylindrical straight slots with corresponding equal parts along circumferences. A steel ball playing the role of a key is arranged in each straight slot. The end cover is arranged on the end of the internal tooth sheath. The port of an upper semicylindrical straight slot of the coupling half is provided with a check ring. The utility model has the advantages of self-compensation of axial displacement, large impact resistance and loading capacity, long service life, simple structure, and convenient use and maintenance.

Description

The ball Hooks coupling universal coupling

The utility model relates to a kind of ball Hooks coupling universal coupling.

Hooks coupling universal coupling is to be widely used in milling train main transmission and subsidiary engine transmission, lifting, the mine, vehicle transport, oil, the engineering part of boats and ships and other heavy machinery industries, existing Hooks coupling universal coupling mostly is universal coupling with spider, adopt the kind of drive that rolling bearing is installed on the cross-axis head, has the transmission efficiency height, stable drive, the advantage that noise is low, but not flexible of this word of cross axle, the universal coupling with spider of telescopic type need be set up independent telescopic or hydraulic type shrinking structure unit, and normal off cross-axis head when carrying greater impact load, the major-minor bearing also very easily damages, so the life-span is lower.

The purpose of this utility model is to overcome the above-mentioned defective that prior art exists, provide a kind of and can compensate certain axial displacement, have buffering, shock sucking function having under the bigger axial inclination occasion to use, bearing capacity is big, the life-span is long and ball Hooks coupling universal coupling simple in structure, that use is easy to maintenance.

The purpose of this utility model is achieved through the following technical solutions.This ball Hooks coupling universal coupling is by internal tooth casing, half-coupling, end cap and jack shaft and spacer flanger are formed, right-hand member is identical with the left end structure, jack shaft is installed on the spacer flanger, spacer flanger links by bolt and nut and half-coupling, in the utility model, half-coupling stretches in the internal tooth casing, have the axial half-cylindrical straight trough of corresponding equal portions along circumference at the outer surface of the internal surface of internal tooth casing and half-coupling, in each straight trough, be provided with at the steel ball that laterally plays a part key, work the port part that the back-up ring that blocks the steel ball effect is contained in cylindrical straight trough on the half-coupling, end cap is installed in the port part of internal tooth casing.

Ball Hooks coupling universal coupling of the present utility model, come transmitting torque owing to adopt steel ball straight trough duplex structure, can be by increasing straight trough, the steel ball number increases bearing capacity, make transmitting torque bigger, owing to the semicolumn straight trough on the internal tooth casing internal surface that steel ball is housed has certain-length, make this ball Hooks coupling universal coupling itself can have stretchability, need not increase independent member, promptly has buffering, shock sucking function, and steel ball is rolling friction in the cylinder straight trough, its friction factor is little, transmission efficiency is higher, has avoided universal coupling with spider normal off cross-axis head and the flimsy defective of major-minor bearing, and greatly prolong working life, this model utility also has operation, advantage easy to maintenance, that cost is low.

Figure 1 shows that ball Hooks coupling universal coupling overall structure schematic representation of the present utility model.

Fig. 2 is an A-A sectional drawing among Fig. 1.

Provide specific embodiment of the present utility model below in conjunction with Figure of description.As shown in Figure 1, this ball Hooks coupling universal coupling is by internal tooth casing (1), half-coupling (6), end cap (5) and jack shaft (8) and spacer flanger (7) are formed, left and right sides two-end structure is identical, jack shaft (8) two is installed on the spacer flanger (7), spacer flanger (7) fixedly links by bolt and nut and half-coupling (6), in the utility model, half-coupling (6) is arranged in the internal tooth casing (1), circumference has uniform axial half-cylindrical straight trough in the internal surface upper edge of internal tooth casing (1), it is fixed that the length of this straight trough can be got according to operating mode displacement amount desirability, on the outer surface circumference of half-coupling (6), also have corresponding with it axial half-cylindrical straight trough, as shown in Figure 2, organize the steel ball (3) that has been provided with the effect of key in the corresponding straight trough at each, half-coupling (6) is gone up straight trough can get measured length according to the size of steel ball (3), the back-up ring (2) that plays restriction steel ball (3) effect is contained in the port part of half-coupling (6) upper semi-circle cylindricality straight trough, end cap (5) is installed in the end of internal tooth casing (1), between internal tooth casing (1) end and end cap (5), also be provided with wiper of rubber (4), in order to make coupling can adapt to the workplace of angle between larger axis (α≤8 °), the outer surface that half-coupling (6) is stretched into the internal tooth casing part is designed to spherical, make internal tooth casing (1) and half-coupling (6) that bigger gap be arranged when between centers angle work shift, this ball Hooks coupling universal coupling inserts the high lubricating grease lubricate of viscosity in half-cylindrical straight trough when using, dismounting, extremely easy to use, after if coupling uses the long period, half-cylindrical straight trough has wearing and tearing, can carry out soldering by double cylindrical straight trough after the dismounting, again with the reparation of polishing of roundlet grinding machine, the steel ball (3) of wearing and tearing also can be changed at any time, so maintenance is very convenient, cost is also extremely low.

Claims

1, a kind of ball Hooks coupling universal coupling, by internal tooth casing, half-coupling, end cap, jack shaft and spacer flanger are formed, jack shaft two is installed on the spacer flanger, spacer flanger fixedly links by bolt and nut and half-coupling, left and right sides two-end structure is identical, of the present utility model being characterised in that: half-coupling is arranged in the internal tooth casing, circumference has uniform axial half-cylindrical straight trough in the internal surface upper edge of internal tooth casing, on the outer surface circumference of half-coupling, also have corresponding with it half-cylindrical straight trough, organize the steel ball that has been provided with the effect of key in the corresponding straight trough at each, end cap is installed in the end of internal tooth casing, has been provided with the back-up ring of restriction steel ball effect in the port part of half-coupling upper semi-circle cylindricality straight trough.

2, ball Hooks coupling universal coupling according to claim 1 is characterized in that: the outer surface that described half-coupling stretches into the internal tooth casing part is designed to spherical.

3, ball Hooks coupling universal coupling according to claim 1 and 2 is characterized in that: also be provided with wiper of rubber between internal tooth casing end and end cap.