CN2424323Y - Suspension roller type claw shape coupling - Google Patents

Abstract

The utility model discloses a suspension roller type claw-shaped coupling, which evenly arranges a plurality of same claw-shaped convex teeth on the outer edges of the corresponding end faces of two half-couplings. The claw-shaped convex teeth of the two half-couplings are wedged mutually to cause the identical gaps are formed between every adjacent convex teeth. The middle of every gap is embedded with a roller transferring the torsion, and every roller is provided with an axial central through hole, which is in parallel with the axial lead of the half-coupling. The central through hole is provided with a pin, and the roller is hung on one half-coupling. The utility model has the advantages of simple structure, convenient installation, large transferring torque, good operating stability, etc.

Description

Hang the roller type claw coupling

The utility model relates to coupling, is meant a kind of suspension roller type claw coupling especially.

At present, the coupling that is adopted in the connection of various mechanisms coaxial inner conductor rotation has multiple structural types such as flange articulated coupling and quincunx elastic coupling flexible coupling.Flange articulated coupling need be used Bolt Connection left and right sides flange plate, and installing/dismounting is inconvenience very, and manufacture cost is also higher, and uses flange arrangement can increase installation dimension greatly, and the place can't use at many compact structures.Quincunx elastic coupling flexible coupling is to utilize plum blossom shape elastic element to place to realize between the dog of two half-couplinves a kind of coupling that connects, force transfer element shape that it is quincunx is comparatively complicated, processing difficulties, and the radius of curvature at quincunx element carrying position is less, transmitting torque is little, its less stable, installation requirement is higher.

The purpose of this utility model is exactly to overcome the defective that above-mentioned coupling exists, provide a kind of simple and compact for structure, install and maintenance is convenient and transmitting torque is big, the suspension roller type claw coupling of good operating stability.

For realizing this purpose, the suspension roller type claw coupling that the utility model is designed, have two half-couplinves, be evenly distributed with several same claw type double wedges respectively on two corresponding end face outer rims of half-coupling, the mutual contract of claw type double wedge on two half-couplinves goes into to make the identical space of formation between each adjacent claw type double wedge, all embed the roller of a transmitting torque in each space, have on each roller one with the axial central through hole of half-coupling axis parallel, be provided with a pin in each central through bore, roller is suspended on one of them half-coupling by pin.A half-coupling drives another half-coupling rotation by roller during work.

Advantage of the present utility model is: adopt roller to come transmitting torque with the structure that the claw type double wedge matches, need not flange and Bolt Connection, the complicated processing that does not also have quincunx element, and roller is suspended on one of them half-coupling it by running through the pin radial location and the axially locating of its axial central through hole reliably, has prevented that effectively roller from coming off, its structure is succinct, assembling and dismounting are extremely convenient, are easy to maintaining, only need to add lubricating grease and just can use for a long time.Simultaneously, the radius of curvature that the two work surface of contact of roller and claw type double wedge is allowed is big far beyond the radius of curvature of quincunx element, and it cooperates compact and reasonable, and adaptability is strong, thereby the moment of torsion of its transmission is bigger, and the life-span is longer, and service behaviour is more reliable and more stable.

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

Fig. 1 is a kind of axial sectional structure schematic representation that hangs the roller type claw coupling;

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

Fig. 3 is the roller structure three-view diagram of coupling shown in Figure 1;

Fig. 4 is the decomposition assembling schematic representation of coupling shown in Figure 1.

Coupling shown in the figure has half-coupling 1 and half-coupling 2, is evenly distributed with four claw type double wedge 1a on the end face outer rim of half-coupling 1, is evenly distributed with four claw type double wedge 2a on the end face outer rim of half-coupling 2.The shape of claw type double wedge 1a, 2a is identical, and size is consistent, and just they have staggered 45 ° mutually with respect to the keyway position on the half-coupling.The both sides work surface of contact of claw type double wedge 1a, 2a is cylindrical so, and claw type double wedge 1a and the mutual contract of claw type double wedge 2a go into to make the identical space of formation between each adjacent claw type double wedge 1a, 2a, promptly have eight identical cross sections to be dolioform space.In each space, all embed the roller 4 of one piece of transmitting torque, roller 4 and claw type double wedge 1a, the contacted two sides of 2a can be designed to the cylindrical so that the working surface with claw type double wedge 1a, 2a fits, the perpendicular cross section of roller 4 and half-coupling shaft axis is dolioform, just in time the cross section also is dolioform space and fills up, we claim that the roller of this shape is flat type roller.The flank radius of flat type roller can design very greatly, thereby can significantly improve the ability of its transmitting torque, and the transmission of moment of torsion is steadily reliable.Simultaneously flat type roller processing is more simple and convenient, and manufacture cost greatly reduces, and its compact structure is reasonable, allows the shaft axis skew big, and adaptability is stronger.On each roller 4, have one with axial central through hole 4a, this central through bore 4a of half-coupling axis parallel in a pin 5 is housed, one end of pin 5 is fixed among the pin hole 2b on the half-coupling 2, the other end of pin 5 has a boss 5a, this boss 5a can limit roller 4 and move axially, thereby roller 4 is suspended on the half-coupling 2.Such structural type overcome roller install and maintenance process in the lost deadly defect that comes off easily, make that the assembling maintenance is very simple.Between roller 4 and its pin 5 of suspension certain clearance can be arranged, promptly both are running fit, and roller 4 can freely swing in a certain scope like this, thereby can improve its displacement compensation capability and cushioning ability.At the half-coupling 1 and half-coupling 2 outsides nylon dust-proof cover 3 is housed,, and prevents that coupling from throwing away lubricating grease when high speed rotating in order to the cleaning of lubricating grease in the maintenance coupling.

Coupling described in the utility model is not limited to the foregoing description, the also size of transmitting torque and rotating speed and changing optionally of uniform claw type raised teeth number and formal parameter on two half-coupling, roller and half-coupling material can require to do suitably to adjust according to operating mode needs and load, roller can be used elastic material, also can use rigid material.

Claims (3)

1, a kind of suspension roller type claw coupling, comprise two half-couplinves, it is characterized in that: be evenly distributed with several same claw type double wedges respectively on two corresponding end face outer rims of half-coupling, the mutual contract of claw type double wedge on two half-couplinves goes into to make the identical space of formation between each adjacent claw type double wedge, all embed the roller of a carry-over moment in each space, have on each roller one with the axial central through hole of half-coupling axis parallel, be provided with a pin in each central through bore, roller is suspended on one of them half-coupling by pin.

2, suspension roller type claw coupling according to claim 1 is characterized in that: said roller is that itself and the contacted two sides of claw type double wedge are cylindrical so, the perpendicular cross section of itself and half-coupling shaft axis is dolioform flat type roller.

3, suspension roller type claw coupling according to claim 1 and 2 is characterized in that: be running fit between the pin of said roller and suspension roller.