CN211474702U - Star-shaped coupling with buffering and damping functions - Google Patents

Abstract

The utility model discloses a star-shaped shaft coupling with buffering and damping functions, including lower shaft coupling disc, the fixed orifices, the blotter, the upper shaft coupling disc, the centre bore, the draw-in groove, the convex claw, the blotter side, the fixed orifices has been seted up on upper shaft coupling disc front end surface right side, the centre bore has been seted up on upper shaft coupling disc upper end surface, the draw-in groove has been seted up to centre bore rear inboard, upper shaft coupling disc lower extreme inboard evenly is equipped with a plurality of convex claws, the convex claw all fixes on upper shaft coupling disc through the welding, the convex claw downside is equipped with the blotter, the blotter outer periphery evenly is equipped with eight blotters side, blotter and blotter side-of-holding pad are made as an organic whole, the centre bore runs through upper shaft coupling disc, blotter and lower shaft coupling disc, all be equipped with three metal convex claw on upper shaft coupling disc and the; the utility model discloses possessed compensation diaxon relative deviation, buffering, shock attenuation, wear resistance good, good elasticity, can dustproof the trapped fuel and improved flank of tooth wearing and tearing situation, reduced the advantage of noise.

Description

Star-shaped coupling with buffering and damping functions

Technical Field

The utility model relates to a shaft coupling technical field, concretely relates to is a star type shaft coupling that possesses buffering shock-absorbing function.

Background

The star-shaped elastic coupling uses engineering plastics as elastic elements, is suitable for connecting two coaxial transmission shafting, and is accelerated to wear by radial movement produced by centrifugal force when the star-shaped elastic coupling is operated at high speed, and a shell is additionally arranged. In addition to being able to keep oil dust out, insufficient thinning can cause interference, excessive thinning can weaken the strength of the teeth, and backlash can be significant. The contact condition of the external teeth is improved, the defects of stress concentration and extrusion of the edge of the end of the straight tooth under the condition of angular displacement are avoided, the friction and abrasion conditions of the tooth surface are improved, the noise is reduced, and the maintenance period is long. The tooth end of the outer tooth sleeve of the star-shaped elastic coupling is in a horn shape, so the star-shaped elastic coupling is not suitable for being used under the conditions of high speed and impact load and is also not suitable for being used for connecting a vertical shaft. The existing coupler has the disadvantages of complex structure, low buffering, damping and wear-resisting performances and low borne torsion; therefore, a star coupling with a damping function is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a star type shaft coupling that possesses buffering shock-absorbing function, possessed compensation diaxon relative deviation, buffering, shock attenuation, wear resistance good, good elasticity, can dustproof trapped fuel and improve flank of tooth wearing and tearing situation, reduced the advantage of noise, solved prior art's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a star type shaft coupling that possesses buffering shock-absorbing function, includes lower shaft coupling dish, fixed orifices, blotter, goes up shaft coupling dish, centre bore, draw-in groove, convex claw, blotter side, it has seted up the fixed orifices to go up shaft coupling dish front end surface right side, it has seted up the centre bore to go up shaft coupling dish upper end surface, the draw-in groove has been seted up to centre bore rear inboard, it evenly is equipped with a plurality of convex claws to go up shaft coupling dish lower extreme inboard, the convex claw is all through welded fastening on last shaft coupling dish, the convex claw downside is equipped with the blotter, the blotter outer periphery evenly is equipped with eight blotter sides, blotter and blotter side are made as integrated into one piece.

Preferably, the central hole penetrates through the upper coupling disc, the cushion pad and the lower coupling disc.

Preferably, the upper coupling disc and the lower coupling disc are provided with three metal convex claws which are identical in size, position and structure, and the upper coupling disc and the lower coupling disc are identical in size.

Preferably, the cushion pad adopts polyurethane TPU or polyurethane CPU, the hardness of the product reaches 90 ± 2 ° a, and the akron abrasion is less than 0.05 cm/1.61 km.

Preferably, the buffer pad is mounted in the convex claws on the upper coupling disc and the lower coupling disc and limited by the convex claws on two sides.

Preferably, the blotter is middle part cavity, eight blotter sides of periphery evenly distributed.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the star-shaped coupler with the buffering and damping functions is simple and quick to disassemble and low in maintenance cost, and is simple and quick to disassemble and low in maintenance cost due to the fact that the star-shaped coupler is clamped, sleeved and fixed in a nested mode;

2. a kind of star-type junction box with buffering and shock-absorbing function, the buffer pad is mounted in the convex claw on upper junction box and lower junction box, and there is convex claw limit of both sides, the polyurethane buffer pad is limited by the convex claw block, can avoid because of the internal deformation that the impact produces and external deformation that the centrifugal force produces, have realized compensating the relative excursion of diaxon, buffering, shock attenuation, wear-resisting performance is good, good elasticity;

3. a star-shaped coupler with a buffering and damping function is characterized in that three metal convex claws are arranged on an upper coupling disc and a lower coupling disc, the sizes, the positions and the structures of the three metal convex claws are the same, the sizes of the upper coupling disc and the lower coupling disc are the same, and concave surfaces of the convex claws are large, so that the surface pressure on an open-line tooth can be reduced, the purposes of preventing dust, storing oil, improving the abrasion condition of a tooth surface and reducing noise are achieved;

4. the utility model provides a star type shaft coupling that possesses buffering shock-absorbing function, the blotter is middle part cavity, the star type structure at eight blotter sides of periphery evenly distributed, and blotter side adopt polyurethane integrated into one piece to make, have effectually improved holistic mechanical strength and good elasticity, have further realized can dustproof oil storage and have improved flank of tooth wearing and tearing situation, have reduced the noise, are applicable to the transmission shafting of hookup two coaxial lines, and the adaptation occasion is general.

Drawings

Fig. 1 is a schematic view of an overall structure of a star-shaped coupler with a buffering and shock-absorbing function according to the present invention;

FIG. 2 is a schematic diagram of a cushion pad of a star-shaped coupler with cushioning and shock-absorbing functions according to the present invention;

FIG. 3 is a side view of the first cushion pad of the star-shaped coupler with cushioning and shock-absorbing functions according to the present invention;

FIG. 4 is a side view of the cushion pad of the star coupler with damping function of the present invention;

fig. 5 is a schematic view illustrating the connection and analysis between the cushion pad and the hub of the star-type coupling with the buffering and damping functions.

The figures are labeled as follows: the connecting shaft comprises a lower connecting shaft disc 1, a fixing hole 2, a cushion pad 3, an upper connecting shaft disc 4, a central hole 5, a clamping groove 6, a convex claw 7 and a cushion pad side 8.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1 and 5, a star-shaped coupling with buffering and damping functions comprises a lower coupling disc 1, a fixing hole 2, a cushion pad 3, an upper coupling disc 4, a central hole 5, a clamping groove 6, convex claws 7 and a cushion pad side 8, wherein the fixing hole 2 is formed in the right side of the front end surface of the upper coupling disc 4, the central hole 5 is formed in the upper end surface of the upper coupling disc 4, the clamping groove 6 is formed in the inner side of the rear part of the central hole 5, the convex claws 7 are uniformly arranged on the inner side of the lower end of the upper coupling disc 4, and the convex claws 7 are fixed on the upper coupling disc 4 through welding; the device is fixed in a clamping, sleeving and nesting manner, so that the disassembly is simple and rapid, the maintenance cost is low, the upper coupling plate 4 and the lower coupling plate 1 are respectively provided with three metal convex claws 7, the sizes, the positions and the structures are the same, the sizes of the upper coupling plate 4 and the lower coupling plate 1 are the same, and the concave surfaces of the convex claws 7 can reduce the surface pressure on the open teeth, prevent dust, store oil, improve the abrasion condition of the tooth surface and reduce the noise;

example 2:

referring to fig. 1-5, in the star coupling with the buffering and shock absorbing functions, the buffer pads 3 are arranged on the lower sides of the convex claws 7, eight buffer pad side faces 8 are uniformly arranged on the outer circumferential surface of each buffer pad 3, and the buffer pads 3 and the buffer pad side faces 8 are manufactured in an integrated manner; buffer 3 installs in last shaft coupling 4 and the protruding claw 7 on the lower shaft coupling 1, and there is the protruding claw 7 restriction of both sides, polyurethane buffer 3 is restricted by protruding type claw piece, can avoid because the inside deformation that the impact produced and the outside deformation that centrifugal force produced, compensation diaxon relative excursion has been realized, the buffering, the shock attenuation, wear resistance is good, good elasticity, buffer 3 is middle part cavity, eight buffer sides 8's star type structure of periphery evenly distributed, buffer 3 and buffer sides 8 adopt the polyurethane integrated into one piece to make, effectual holistic mechanical strength and good elasticity of having improved, further realized can prevent dust the oil deposit and improved flank of tooth wearing and tearing situation, the noise has been reduced, be applicable to the transmission shafting of hookup two coaxial lines, adaptation occasion is general.

The working principle is as follows: a star-shaped coupler with buffering and shock-absorbing functions is characterized in that equipment is placed on a rotating shaft, the equipment is sleeved on the rotating shaft through a central hole 5 and a clamping groove 6 in a lower coupling disc 1 and an upper coupling disc 4, the equipment is fixed on the rotating shaft through a fixing hole 2 on the upper coupling disc 4, the normal operation and stability of the equipment are guaranteed, the rotating shaft drives the lower coupling disc 1 and the upper coupling disc 4 at two ends to be fixed and rotate, a buffer pad 3 is arranged in convex claws 7 on the upper coupling disc 4 and the lower coupling disc 1 and limited by the convex claws 7 at two sides, the polyurethane buffer pad 3 is limited by convex claw blocks, internal deformation caused by impact and external deformation caused by centrifugal force can be avoided, the compensation of relative deviation of two shafts is realized, the buffering and shock-absorbing functions and good wear resistance and good elasticity are realized, three metal convex claws 7 are arranged on the upper coupling disc 4 and the lower coupling disc 1, and the size, the position, the structure is the same, it is the same with the size of lower shaft coupling dish 4, the big concave surface of convex claw 7, can reduce the surface pressure on the tooth of seting out, it has improved flank of tooth wearing and tearing situation to have realized can dustproof oil storage, the noise is reduced, blotter 3 is middle part cavity, the star type structure of eight blotter sides 8 of periphery evenly distributed, blotter 3 and blotter side 8 adopt polyurethane integrated into one piece to make, effectual holistic mechanical strength and good elasticity have been improved, further realized can dustproof oil storage and improved flank of tooth wearing and tearing situation, the noise is reduced, be applicable to the transmission shafting of hookup two coaxial lines, adaptation occasion is general.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a star type shaft coupling that possesses buffering shock-absorbing function which characterized in that: including lower shaft coupling dish (1), fixed orifices (2), blotter (3), go up shaft coupling dish (4), centre bore (5), draw-in groove (6), lug (7), blotter side (8), go up shaft coupling dish (4) front end surface right side and seted up fixed orifices (2), it has seted up centre bore (5) to go up shaft coupling dish (4) upper end surface, draw-in groove (6) have been seted up to centre bore (5) rear inboard, it evenly is equipped with a plurality of lugs (7) to go up shaft coupling dish (4) lower extreme inboard, lug (7) all through welded fastening on last shaft coupling dish (4), lug (7) downside is equipped with blotter (3), blotter (3) outer periphery evenly is equipped with eight blotter sides (8), blotter (3) and blotter side (8) are integrated into one piece and make.

2. The star coupling with the damping function according to claim 1, wherein: the central hole (5) penetrates through the upper coupling disc (4), the cushion pad (3) and the lower coupling disc (1).

3. The star coupling with the damping function according to claim 1, wherein: the upper coupling disc (4) and the lower coupling disc (1) are respectively provided with three metal convex claws (7) with the same size, position and structure, and the upper coupling disc (4) and the lower coupling disc (1) are same in size.

4. The star coupling with the damping function according to claim 1, wherein: the bumper pad (3) is made of polyurethane TPU or polyurethane CPU, the hardness of the product reaches 90 +/-2 degrees A, and the Akron abrasion loss is less than 0.05 cm/1.61 km.

5. The star coupling with the damping function according to claim 1, wherein: the buffer pad (3) is arranged in the convex claws (7) on the upper coupling disc (4) and the lower coupling disc (1) and limited by the convex claws (7) on two sides.

6. The star coupling with the damping function according to claim 1, wherein: the middle part of the cushion pad (3) is hollow, and eight cushion pad sides (8) are uniformly distributed on the periphery of the cushion pad.

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