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Coupling

A technology of coupling and rotating shaft, applied in the direction of coupling, elastic coupling, mechanical equipment, etc., can solve problems such as enlargement, achieve the effect of reducing load, realizing miniaturization, and realizing assembly workability

Active Publication Date: 2017-12-05
JUKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, for the insertion portion 231 of the connecting member 230, the load per unit area becomes larger than that of the prior art. Therefore, there is a problem that, in order to suppress wear and aging, it is necessary to use the same method as the prior art. Formed from expensive materials such as polyurethane elastomers that are superior in durability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Deformed example （1

[0137] Figure 7 It is an exploded perspective view of the first modified example of the coupling. In this coupling 10A, the structure other than the connecting member 30A may be the same as that of the coupling 10 .

[0138] The connection member 30A of the shaft coupling 10A has: the same six insertion parts 31 as the connection member 30; The other end portion is alternately connected; and the same partition wall portion 33 as the connection member 30 . Furthermore, this connecting member 30A is also integrally formed of rubber which is an elastic body, for example, nitrile rubber (NBR).

[0139] In addition, each connecting portion 32A is formed in a shape that follows the end surface of the extending end portion of the extending portion 23 of the boss 20 at one end or the other end of the connected two insertion portions 31 . In addition, it is preferable to shorten the protruding length of each extension portion 23 corresponding to the thickness of the connection port...

Deformed example （2

[0143] Figure 8 It is a perspective view of the second modified example of the coupling. In this coupling 10B, the structure other than the connecting member 30B may be the same as that of the coupling 10 .

[0144] The connection member 30B of the coupling 10B separates the six insertion portions 31B inserted between the protrusions 22 of the two bosses 20 , 20 , and does not have the connection portion 32 and the partition wall portion 33 .

[0145] In addition, in the manufacturing process of the coupling 10B, each insertion portion 31B is fastened to one or both of the two opposing side surfaces of the adjacently provided bosses 22 , 22 by bonding, sintering, or the like. on both.

[0146] Each insertion portion 31B cannot be separated from the boss 20 while being fastened to one side surface of each boss portion 22 . Moreover, when fastening to two side surfaces of each boss part 22, two bushings 20, 20 and the connection member 30B are integrated and cannot be separa...

Deformed example （3

[0151] Figure 9 It is a perspective view of a third modified example of the coupling. In this coupling 10C, the structure other than the boss 20C can be set to be the same as that of the coupling 10 .

[0152] In the above-mentioned shaft coupling 10, the length of the extension portion 23 of each sleeve 20 in the direction of the rotation center line C is set to be approximately equal to the length of the main body portion 21, thus, the total length of the boss portion 22 = shaft coupling The full length of device 10. By making the aforementioned lengths uniform, the contact area between the boss portion 22 and the insertion portion 31 can be maximized relative to the size of the coupling 10 .

[0153] On the other hand, the extension part 23C of each boss 20C of the joint 10C is set to be shorter in the direction of the rotation center line C than the main body part 21 . Therefore, the total length of the boss 22 Figure 11 , Figure 12 ), the load per unit area in each ...

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Abstract

The present invention provides a coupling capable of reducing stress on connecting members of the coupling during torque transmission. The coupling has: two fixed bodies (20, 20) respectively fixed to two rotating shafts (84a, 85); and a connecting member (30) inserted into the fixed bodies. Each fixed body has: a main body (21) into which a rotating shaft is inserted; and protruding protrusions (22) of a convex line formed at equal intervals on the outer periphery of the main body. Each protrusion has an extension (23) formed over the entire length of the main body and protruding from one end of the main body. In each fixing body, mutual protrusions are alternately arranged in the circumferential direction, and mutual main body parts are connected in a state inserted into each other's extension part. The connecting member has a plurality of insertion portions arranged in gaps between the protrusions. The length in the rotation center line direction of each insertion part is equal to or greater than the full length of the raised part.

Description

technical field [0001] The present invention relates to a coupling for connecting two rotating shafts. Background technique [0002] When two rotating shafts are concentrically arranged to transmit torque therebetween, the rotating shafts are connected by a coupling. [0003] Figure 11 It is an exploded oblique view of the coupling 100 widely used at present. As shown in this figure, the conventional shaft coupling 100 has: shaft sleeves 110, 120, which are respectively fixed on the rotating shaft on the power side and the rotating shaft on the load side; Between 120 and 120, it is permissible for the shaft centers on the power side and the load side to deviate from each other. [0004] The sleeves 110, 120 have substantially the same structure, and have: a cylindrical main body 111, 121 into which a rotating shaft on the power side or a load side is inserted; One end surface of , 121 extends along the centerline direction of the main body portion (one of the raised port...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D3/50F16D3/72
Inventor 射越悠
Owner JUKI CORP
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