CN2455957Y - Claw style ball groove universal coupling - Google Patents

Abstract

The utility model relates to a claw type ball groove universal coupling. The outer edges of the end surfaces being opposite to two coupling halves are respectively provided with a plurality of same claw-shaped teeth evenly, and both sides of every claw-shaped tooth are respectively provided with half-cylinder grooves which are symmetrical mutually and are parallel to the axial lead of the coupling half. The claw-shaped teeth of two coupling halves are wedged mutually to cause two half-cylinder grooves between the sides of every adjacent claw-shaped tooth to be closed to form a cylindrical hole. Every cylindrical hole is provided with a ball-shaped rolling body, and both ends of every ball-shaped rolling body is provided with an elastic element and a spacing pin. A gap used for deflection is left between the end face of every claw-shaped tooth and the opposite end face of the coupling half. The utility model has the advantages of large transfer torque, large operating deflection angle, long service life, easy maintenance, etc.

Description

The claw style ball groove Hooks coupling universal coupling

The utility model relates to coupling, is meant a kind of claw style ball groove Hooks coupling universal coupling especially.

At present, connect the Hooks coupling universal coupling that the diaxon that intersects on the same plane, space comes transmitting movement and moment of torsion, adopt universal coupling with spider more.This universal coupling with spider-as be by yoke, cross axle, supporting member, fastener, seal elements etc. are formed, it is more that it constitutes the unit, structure is comparatively complicated, and cross axle mostly is alloyed steel, and supporting member mostly is Bearing Steel, to the heat treatment requirements height, thereby its manufacturing is comparatively difficult, and cost of material is high.It is subjected to the influence of boundary dimension simultaneously, the size of cross axle and supporting member can not be very big, easy generation trunnion journal ruptures, accidents such as supporting element is cracked, oil sealing leakage of oil, thereby its poor work stability, the ability of transmitting torque has been subjected to very big restriction, maintenance difficulties is bigger, and working life is shorter.

The purpose of this utility model is to overcome above-mentioned shortcoming, provide a kind of simple in structure, transmitting torque is big, working stability is reliable, safeguard to be easy to the claw style ball groove Hooks coupling universal coupling.

For realizing this purpose, the claw style ball groove Hooks coupling universal coupling that the utility model is designed, comprise active and driven two half-couplinves, be evenly equipped with several identical blade tooths respectively on these two half-coupling opposing end faces outer rims, the number of blade tooth can be by the boundary dimension of coupling and the moment of torsion decision of being carried.Have on the bi-side of each blade tooth symmetrically and with the semicolumn groove of its half-coupling axis parallel, the mutual contract of blade tooth on two half-couplinves goes into to make two semicolumn groove structures between each adjacent blade tooth side to close to form a cylindrical hole, be provided with in each cylindrical hole-spherical rolling element, in the cylindrical hole at each spherical rolling element two ends elastic element and position limit pin are housed, relatively stable with the position that guarantees spherical rolling element.Leave certain clearance between the end face of each blade tooth and the half-coupling end face relative, to satisfy the requirement of two half-coupling deflections with it.

Advantage of the present utility model is: utilize the recess center of cylindrical hole that the positive pressure of rolling element sphere is come transmitting torque, the bearing capacity of coupling and the reliability of transmitting torque have been improved greatly, and visual its boundary dimension and payload are arranged the quantity and the size of rolling element, make work more steadily reliable, the work drift angle is big.Simultaneously initiatively and directly contact between the passive half-coupling, rolling element is done pure rolling during deflection, makes that its wearing and tearing are little, noise is low, the life-span significantly prolongs.This coupling used unit is few in addition, and easily damaged parts is also few, simple in structure, and processing and simple installation are easy to safeguard.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:

Fig. 1 is a kind of structural representation of claw style ball groove Hooks coupling universal coupling;

Fig. 2 is the horizontal sectional structure schematic representation of coupling shown in Figure 1;

Fig. 3 is the deflection state structural representation of coupling shown in Figure 1.

Be a pair of pawl four pearl claw style ball groove Hooks coupling universal couplings shown in the figure, it comprises half-coupling 1 and half-coupling 3, and design has a pair of symmetrical blade tooth 1A on the end face outer rim of half-coupling 1, and design has a pair of symmetrical blade tooth 3A on the end face outer rim of half-coupling 3.Have on the bi-side of each blade tooth 1A, 3A symmetrically and with the semicolumn groove of its half-coupling axis parallel, the mutual contract of blade tooth 1A, 3A on two half- couplinves 1,3 goes into to make two semicolumn groove structures between each adjacent blade tooth 1A, the 3A side to close to form a cylindrical hole.Be provided with a spherical rolling element 2 in each cylindrical hole, spherical rolling element 2 both can be the rigidity rolling element and also can be the elastic rolling body, optionally the moment of torsion of Chuan Diing and deciding.In the cylindrical hole at each spherical rolling element 2 two ends elastic element 4 and position limit pin 5 are housed, elastic element 4 can adopt dish spring or spiral spring, position limit pin 5 is installed in the opening of each blade tooth 1A, 3A, thereby the position that guarantees spherical rolling element 2 is relatively stable, and can regulate smooth transfer moment of torsion and motion by rolling in cylindrical hole.Leave the gap h that uses for deflection between the end face of the half- coupling 3,1 that the end face of each blade tooth 1A, 3A is relative with it, the size of gap h is corresponding with the angle that needs deflection.

During the utility model work, two half- couplinves 1,3 are by spherical rolling element 2 transmitting torques, when two half- couplinves 1,3 have certain crossing angle, semicolumn groove on its blade tooth 1A, 3A two side planes is also in company with corresponding the intersection takes place, spherical rolling element 2 just just in time is in the intersection point place of crossed grooves, be subjected to the interaction of two half- couplinves 1,3, thereby guaranteed the relatively stable and transition stably of two half- coupling 1,3 spatial position.

Claims (1)

1. A kind of claw style ball groove Hooks coupling universal coupling, comprise active and driven two half-couplinves, it is characterized in that: be evenly equipped with several identical blade tooths respectively on these two half-coupling opposing end faces outer rims, have on the bi-side of each blade tooth symmetrically and with the semicolumn groove of its half-coupling axis parallel, the mutual contract of blade tooth on two half-couplinves goes into to make two semicolumn groove structures between each adjacent blade tooth side to close to form a cylindrical hole, be provided with a spherical rolling element in each cylindrical hole, in the cylindrical hole at each spherical rolling element two ends elastic element and position limit pin are housed, leave the gap of using for deflection between the end face of each blade tooth half-coupling end face relative with it.

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