TWM512642U - Coupler for power transmission - Google Patents

Description

Power transmission coupling

This creation relates to a coupling, and more particularly to a power transmission coupling for joining two different shafts.

Press, the coupling is mainly used as a device for transmitting power. When the shaft and the shaft are to be coupled to transmit power, the pulley or the gear is generally used as the coupling. However, if the two shafts are required to be in a straight line and rotated at a constant speed, the coupling must be used. To connect. 1 shows that the coupler 10 is mounted between the drive shaft 12 of the motor 11 and the driven shaft 14 of the transmission 13 for maintaining the power transmission structure between the drive shaft 12 and the driven shaft 14. As shown in FIG. 2 and FIG. 3, the conventional coupling 10 is a one-piece structure including a sleeve 15 defining an axial hole, and the sleeve 15 is made of a plastic material to solve the problem of the motor 11 being activated. The momentary huge torque and impact, causing noise and destructive power. In essence, the coupling 10 made of a plastic material can prevent noise generation while mitigating the damage caused by the impact force directly on the drive shaft 12 and the driven shaft 14; however, the coupling 10 made of plastic material can The torsion and impact force is limited, so that the coupling transmission between the driving shaft 12 and the driven shaft 14 is deteriorating, the noise is louder, and even the coupling 10 is damaged to lose the function of coupling and transmitting power.

Therefore, in order to overcome the above-mentioned lack of ideals of the conventional couplings, the present author The object is to provide a power transmission coupling that can increase strength.

In order to achieve the above-mentioned effects and purposes, the present invention is a power transmission coupling for connecting two different rotating machine shafts, comprising a pawl member made of a metal material having an inner annular portion, the spine The peripheral edge of the claw member includes a plurality of separate ratchet teeth integrally formed with the inner annular portion and formed around the inner annular portion; and a shaft ring in which the pawl member is embedded in the collar by plastic injection molding. Inside to increase the strength of the coupling. With the above combination, the pawl element of the present invention can increase the rotational rigidity, and the collar can absorb vibration to increase the strength of the coupler.

[Practical Technology]

10‧‧‧Connector

11‧‧‧Motor

12‧‧‧Active shaft

13‧‧‧Transmission

14‧‧‧ driven shaft

15‧‧‧ bushing

[This creation]

20‧‧‧Connector

21‧‧‧ pawl elements

22‧‧‧ Inner ring

23‧‧‧ hole

24‧‧‧ ratchet

25‧‧‧ claws

30‧‧‧Axis

31‧‧‧Cross-shaped slots

32‧‧‧Circular slot

1 is a schematic cross-sectional view of a conventional coupling mounted between a drive shaft of a motor and a driven shaft of the transmission; FIG. 2 is a perspective view of a conventional coupling.

Figure 3 is a transverse cross-sectional view of a conventional coupling.

Figure 4 is a perspective view of the authoring coupler.

Figure 5 is a cross-sectional view taken along line 5-5 of Figure 4.

Figure 6 is a cross-sectional view of the authoring coupler.

Figure 7 is a perspective view of the inventive pawl element.

Referring to FIG. 4 to FIG. 6, the present power transmission coupling 20 is used for coupling the shafts of two different rotating machines, which includes a pawl member 21 made of a metal material, and a collar 30 embedded in a plastic. The injection molding method causes the pawl member 21 to be embedded in the collar 30 to increase the The strength of the coupler 20. The collar 30 is a plastic component having a cross-shaped slot 31 formed in a front end surface thereof and an annular slot 32 formed in the rear end surface.

As shown in Figure 7, the pawl member 21 has an inner annular portion 22 defining a bore 23. The peripheral edge of the pawl member 21 includes a plurality of ratchet teeth 24 integrally formed with the inner annular portion 22. The ratchet 24 is press-bent into a U-shaped structure, and four ratchet teeth 24 are formed at equal intervals around the inner annular portion 22, and the ratchet teeth 24 at the upper and lower ends and the ratchet teeth 24 at the left and right sides are The opposite direction is set, that is, the upper and lower ratchet teeth 24 are bent backward, and the left and right ratchet teeth 24 are bent forward. Each of the ratchet teeth 24 has a pair of spaced apart claw portions 25 that are triangular in shape.

When the pawl element 21 is embedded in the collar 30, the left and right ratchet teeth 24 are buried in the horizontal relative position of the cross-shaped slot 31; and the upper and lower ratchet teeth 24 are embedded in the The relative position of the annular slots 32.

In summary, the pawl member 21 of the inventive coupling 20 is formed by direct stamping and bending of a metal material, and then embedded in the collar 30 of the plastic material, and the coupling 20 can increase the rotational rigidity by the pawl member 21. The collar 30 is capable of absorbing vibration to increase the strength of the coupling to overcome the inherent problems of the prior art.

This creation has been described by the above related embodiments, but the above embodiments are merely examples for implementing the creation. It must be noted that the disclosed embodiments do not limit the scope of the present invention. To the contrary, modifications and equivalent arrangements of the spirit and scope of the invention are included in the scope of the present invention.

20‧‧‧Connector

21‧‧‧ pawl elements

24‧‧‧ ratchet

25‧‧‧ claws

30‧‧‧Axis

31‧‧‧Cross-shaped slots

32‧‧‧Circular slot

Claims (3)

A power transmission coupling for coupling two different rotating machine shafts, comprising: a pawl member made of a metal material having an inner annular portion defining a hole, the peripheral edge of the pawl member including a plurality of separate ratchet teeth are integrally formed with the inner annular portion and formed around the inner annular portion; and a shaft ring is embedded in the shaft in a plastic immersion forming manner to increase the coupling The strength of the device. The power transmission coupling according to claim 1, wherein the ratchet is bent into a U-shaped structure, and the ratchet teeth on the upper end and the lower end of the inner annular portion are disposed in opposite directions to the left and right ratchet teeth. A power transmission coupling according to claim 1, wherein the ratchet has a pair of divided claw portions which are triangular in shape.