CN2520429Y

CN2520429Y - Coupling

Info

Publication number: CN2520429Y
Application number: CN 02204309
Authority: CN
Inventors: 黄明福
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-25
Filing date: 2002-01-25
Publication date: 2002-11-13
Anticipated expiration: 2012-01-25

Abstract

A joint slack has an effect of preventing an auxiliary slab rubber from deforming and breaking and a practical effect that the firmness is better, the compactness of the continuous action is better, and the torsibility is stronger. The utility model is characterized in that between pin and box subs of the joint slack, the circumference of the side of various rubber projections of the auxiliary slab rubber is designed into an arc convexity and is formed with an arc projection with an arc convex surface, and a lateral side in which a rotating projection of the pin and box subs is correspondingly contacted with an interlocking projection is equipped with a concave arc groove with a concave arc surface. Through the contacting of the arc convex surface of the arc projections and the concave arc surface of the concave arc groove, an effect of limiting the rubber projection can be formed to prevent the rubber projections from being compressed to the outer circumference to deform or even break by the rotating pressure, the strength of the endurance can be enhanced, and the larger rotating pressure can also be afforded. Besides because of limiting and preventing the outer projection, the utility model has a better effect of compactness, the conducting effect of the rotating force is better, which cause the joint slack to have a better practicability and a promotional effect.

Description

Coupling

Technical field

The utility model relates to a kind of coupling.

Background technique

Motor shaft), the connector of driven spindle coupling is that (for example:, it comprises male and female connecting

head

10,20 and is arranged on therebetween the flexible auxiliary blob of viscose 30 of summary tool (shown in Figure 1A) a kind of connection power shaft substantially, pegging graft more closely.

Existing structure, shown in Fig. 1 (B), be that public connecting head 10 is provided with according to setting spacing, a plurality of rotation projections 11 of wide cut, plug together groove 12, female connector 20 is also corresponding according to being set with, that sets the spacing wide cut plugs together groove 21, linked bump 22, public,

female connector

10,20 the rotation projection 11 and the bi-side of linked bump 22, all be set as

plane

13,23, again, auxiliary blob of viscose 30 is set as has the glue projection 31 that corresponding female connector 20 plugs together groove 21, the bi-side of glue projection 31 also are set as plane 33, and be formed with and plug together groove 32, the glue projection 31 of auxiliary blob of viscose 30 can be embedded in plugging together in the groove 21 of female connector 20, the rotation projection 11 of public connecting head 10 then can plug together in auxiliary blob of viscose 30 glue projections 31 formed plugging together in the groove 32, and formation connects one and allows power shaft 1 drive driven spindle 2 (as Fig. 2 A); Said structure has following shortcoming in fact:

1. power shaft 1 rotates and produces rotary torsion, rotate projection 11 via public connecting head 10, and form the glue projection 31 that powerful rotation pressure W acts on auxiliary blob of viscose 30, on business, the surface of contact of female connector and glue projection, be

plane

13,23,33, it is a kind of planarea, do not give qualification, stop, thereby can protrude the phenomenon of being out of shape C and produce just like the extrusion effect shown in Fig. 2 B and the partial enlarged drawing to periphery, What is more, and this is out of shape C and causes the damage of breaking of protruding the position.

2. because of squeezing action, metaboly, 11 of the another side of glue projection 11 and rotation projections have the phenomenon of either large or small gap H, and influence the tightness that connects, and then influence the effect of interlock.

2. because of above-mentioned shortcoming, thus its can bear torque value less, be not durable.

Summary of the invention

In order to achieve the above object, the purpose of this utility model is to provide a kind of coupling, and it has better serviceability, can increase endurance strength, and can bear bigger transmission torsion and the good transmission effect of tightness is better.

In order to achieve the above object, the utility model provides a kind of coupling, comprise: male and female connecting head, auxiliary blob of viscose, male and female connecting head and auxiliary blob of viscose are respectively equipped with according to setting rotation projection that correspondence mutually plugs together, plug together groove and plug together groove, linked bump and glue projection, plug together groove, make male and female connecting head and auxiliary blob of viscose link one and can plug together mutually to be close to, should assist each glue projection of blob of viscose, bi-side all are set as the arc convex surface of arc projection shape; This public affairs connecting head respectively rotate projection, bi-side all are set as the concave arc groove shape concave arc surface of corresponding glue projection arc convex surface; Each linked bump of this female connector, bi-side also all are set as the concave arc groove shape concave arc surface of corresponding glue projection arc convex surface; Perhaps, each glue projection of this auxiliary blob of viscose, bi-side all are set as the concave arc surface of concave arc groove shape; This public affairs connecting head respectively rotate projection, bi-side all are set as the arc projection shape arc convex surface of corresponding glue projection concave arc surface; Each linked bump of this female connector, bi-side also all are set as the arc projection shape arc convex surface of corresponding glue projection concave arc surface.

The utility model has the advantages that:

One, will assist the glue projection bi-side of blob of viscose, be set as the arc convex surface of arc projection shape, and the male and female connecting head rotates the bi-side of projection, linked bump, be set as the concave arc surface of corresponding concave arc groove shape, the wedging of, concave arc protruding by arc, the effect that can form qualification, stops prevents that the glue projection from protruding distortion toward periphery, can guarantee bonding tightness, and then have the transmission effect that keeps splendid.

Two, by preventing the evagination distortion, the glue projection is squeezed entirely rotating projection, rotating between projection, do not have the problem of deformation fracture, and have effect more durable, that the increase endurance strength can bear bigger torsion.

Description of drawings

Below in conjunction with drawings and Examples the utility model is elaborated:

Fig. 1 is the existing three-dimensional exploded view of (A) coupling outward appearance (B);

Fig. 2 is that (B) extrusion distortion and local enlarged diagram are analysed and observe in existing coupling (A) combination;

Fig. 3 is the utility model three-dimensional exploded view;

Fig. 4 is that the utility model combination is analysed and observe and partial enlarged drawing.

Embodiment

Read to consult Fig. 3,4, the utility model comprises: male and female connecting head 40,50, auxiliary blob of viscose 60, male and female connecting head 40,50 and auxiliary blob of viscose 60 are respectively equipped with according to setting rotation projection 41 that correspondence mutually plugs together, plug together groove 42 and plug together groove 51, linked bump 52 and glue projection 61, plug together groove 62, and can plug together mutually to be close to male and female connecting head 40,50 and auxiliary blob of viscose 60 are linked into an integrated entity; Should assist each glue projection 61 of blob of viscose 60, bi-side all are set as the arc convex surface 63 of arc projection shape;

This public affairs connecting head 40 respectively rotate projection 41, bi-side all are set as the concave arc groove shape concave arc surface 43 of corresponding glue projection 61 arc convex surfaces 63;

Each linked bump 52 of this female connector 50, bi-side also all are set as the concave arc groove shape concave arc surface 53 of corresponding glue projection 61 arc convex surfaces 63;

By above-mentioned structure, effect of the present utility model, advantage, specification specified is as follows again:

Please consult Fig. 4 again, the combination of male and female connecting head 40,50, auxiliary blob of viscose 60, two glue projections, the 61 irregular embeddings of auxiliary blob of viscose 60 are supported and are closed plugging together in the groove 51 in female connector 50, and close with arc convex surface 63 mutual the supporting of the concave arc surface 53 that rotates projection 41, glue projection 61 respectively, again one of public connecting head 40 is rotated plugging together in the groove 62 of the auxiliary blob of viscose 60 of projection 41 irregular insertions, and close with the concave arc surface 53 of linked bump 52, arc convex surface 63 mutual the supporting of glue projection 61; Above-mentioned textural association, producing has following effect, advantage:

1. shown in the partial enlarged drawing of Fig. 4, the utility model rotates projection 41, glue projection 61, the combination contact of linked bump 52, be concave arc surface 43, arc convex surface 63, the combination of concave arc surface 53, when bearing rotation pressure W, because of rotating projection 41, the concave arc surface 43 of linked

bump

52,63, and form central position is that arc is recessed, periphery has the structure of arc declivity, thereby the two angles in the periphery have the effect that stops, and generation barrier force W1, glue projection 61 is stressed desire when protruding, can be stopped toward periphery, and to the protruding crowded phenomenon of central arc recess, that is, can prevent that glue projection 61 from protruding the problem of distortion outward.

2. glue projection 61 does not protrude distortion outward, does not have the anxiety of being broken, and therefore, serviceability is good.

3. glue projection 61 serviceabilities are good, can increase endurance strength, and bear bigger torque value.

4. glue projection 61 does not protrude distortion outward, and is subjected to concentrate toward interior central position extruding, and can more increase tightness therebetween, does not have the problem that produces the gap, and then better interlock effect is arranged.

5. combining of

concave arc surface

43,53 and arc convex surface 63 is non-planar surface, bigger junction plane arranged, be difficult for slippage, thereby have the firm effect of better combination.

In addition, the bi-side that the utility model also can be set as the glue projection are concave arc surface, and rotate the bi-side of projection, linked bump, then are set as corresponding arc convex surface, also belong in the intention category of equivalent structure of the present utility model.

In sum, structure of the present utility model in the coupling field of articles, is unprecedented creation really, and the effect of being reached has splendid practicability really with creative, meets the utility model patent requirement, special proposition patent application.

Claims

1. coupling, comprise: male and female connecting head, auxiliary blob of viscose, wherein, male and female connecting head and auxiliary blob of viscose are respectively equipped with according to setting rotation projection that correspondence mutually plugs together, plug together groove and plug together groove, linked bump and glue projection, plug together groove, make male and female connecting head and auxiliary blob of viscose link one and can plug together mutually to be close to, it is characterized in that:

Should assist each glue projection of blob of viscose, bi-side all are set as the arc convex surface of arc projection shape; This public affairs connecting head respectively rotate projection, bi-side all are set as the concave arc groove shape concave arc surface of corresponding glue projection arc convex surface; Each linked bump of this female connector, bi-side also all are set as the concave arc groove shape concave arc surface of corresponding glue projection arc convex surface;

Perhaps, each glue projection of this auxiliary blob of viscose, bi-side all are set as the concave arc surface of concave arc groove shape; This public affairs connecting head respectively rotate projection, bi-side all are set as the arc projection shape arc convex surface of corresponding glue projection concave arc surface; Each linked bump of this female connector, bi-side also all are set as the arc projection shape arc convex surface of corresponding glue projection concave arc surface.