KR200217969Y1 - Power transmission unit for easy coupling - Google Patents

Abstract

The present invention relates to a power transmission device for transmitting power of one side to the other side by connecting one shaft (10) and another shaft (40) that requires insertion, the shaft (10) that requires insertion is inserted into the inner circumference is specified. When rotating in the direction of the roller 22 is a roller bearing 20 for holding the one side shaft 10 while advancing toward the center on the inclined surface 24, and a plurality of cutting grooves 32 in the circumferential direction is formed The roller bearing 20 is fixed to the inner circumference, and the other inner circumference of the other shaft 40 is fixed to provide a power transmission device for easy shaft coupling, characterized in that consisting of a flexible coupling 30, It is to allow the coupling of the shaft and the power train without the fastening means, and also to easily combine the shaft with a slightly wrong center.

Description

Power transmission unit for easy coupling

The present invention relates to a power transmission device, and more specifically, when one axis is fixed to a bendable power transmission device with a different shaft inserted therein, the power transmission device is inserted into a fixed shaft so that a plurality of shafts are rotated at the same time. The present invention relates to a power transmission device that can be easily coupled to a shaft to allow a shaft and a power transmission device to be coupled without a fastening means, and to easily combine a shaft with a slightly wrong center.

In general, the driving shaft and the driven shaft are connected by the power transmission device so that the driven shaft is rotated by the rotation of the drive shaft, in which one shaft is inserted into the power transmission device, for example, the torque of the motor ( In the power transmission structure for testing torque, the driven shaft is fixedly installed in the power transmission device, and the motor to test the torque must be firmly fixed by a predetermined fastening means by inserting the shaft to the other side of the power transmission device. Torque testing was possible.

However, when one shaft needs to be frequently inserted into the power train as in the torque test of the motor as described above, it is necessary to loosen the shaft tightening state every time it is replaced, and to fix the shaft after inserting another shaft again. If there is a troublesome problem, if the driving shaft or driven shaft has a fixed position, it is impossible to connect the shaft if the center of the shaft is not correct, and if it is forcibly connected, operation failure occurs, and the position of one shaft is moved for smooth rotation. There was a hassle to center the axis.

An object of the present invention for solving the problems as described above is fixed to one side inner circumference of the flexible coupling formed with a plurality of cutting grooves in the circumferential direction of the roller bearing for holding the shaft by rotating the roller advances in the center direction at the time of rotation And a shaft fixed to the inner circumference of the other side of the flexible coupling so that the shaft requiring insertion and removal can be inserted and fixed without a separate fastening means into the inner circumference of the roller bearing, and the shaft transmission is easily performed. To provide.

1 is an exploded perspective view showing a power transmission device easy to shaft coupling according to the present invention

2 is a perspective view showing an embodiment of a power transmission device according to the present invention

3a to 3b is a cross-sectional view showing an embodiment of a roller bearing in the power transmission device according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: shaft 20: roller bearing

22: roller 24: inclined surface

30: flexible coupling 32: incision groove

40: axis

An embodiment of the present invention for achieving the above object will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing a power transmission device easy to axial coupling according to the present invention, Figure 2 is a perspective view showing an embodiment of the power transmission device according to the present invention, Figure 3a to 3b is a power source according to the present invention Sectional drawing which shows the Example of a roller bearing in a delivery apparatus.

In the power transmission device for easy shaft coupling according to the present invention, when the shaft 10 inserted into the inner circumference rotates in a specific direction, the roller 22 moves forward on the inclined surface 24 toward the center thereof, A roller bearing 20 for holding 10 and a plurality of incision grooves 32 are formed in the circumferential direction so that the roller bearing 20 is fixed to one inner circumference and the other shaft 40 is fixed to the other inner circumference. It is composed of a flexible coupling (30).

Meanwhile, in the embodiment of the present invention, the shaft 10 inserted into the roller bearing 20 represents the driving shaft 10 of the motor 50 as an example, and the shaft 40 fixedly installed on the flexible coupling 30. Denotes the driven shaft 40 by way of example.

In addition, the structure for fixing the roller bearing 20 and the driven shaft 40 in the above-described configuration can be easily implemented by those skilled in the art, for example, axial grooves 34 at both ends of the flexible coupling 30. ), By inserting the roller bearing 20 and the driven shaft 40 into the flexible coupling 30, and then fastening the bolts 36, 37 across the grooves 34, 35 The roller bearing 20 and the driven shaft 40 are fixed to the flexible coupling 30.

In addition, when looking at the configuration of the roller bearing 20 in more detail, one side slope is formed on the inner circumference of the race 25 has a gentle asymmetric inclined surface 24, the roller 22 is positioned one by one on the inclined surface 24 And the rollers 22 are tensioned above the inclined surface 24 by the springs 27 so that the drive shaft 10 can rotate counterclockwise as shown in FIG. 3A. In this case, since the rollers 22 are moved under the inclined surface 24 while being rotated clockwise by friction with the drive shaft 10, the coupling force is lost between the drive shaft 10 and the roller 22, thereby driving the drive shaft 10. At the time of rotation, only the roller 22 is idling to prevent the power of the drive shaft 10 from being transmitted to the driven shaft 40, and as shown in FIG. 3B, when the drive shaft 10 rotates clockwise, the roller ( 22 are counterclockwise by friction with the drive shaft 10. Since the position is moved above the inclined surface 24 while rotating in the direction, the rollers 22 fasten the drive shaft 10 so that the roller bearings 20 rotate together when the drive shaft 10 rotates, thereby driving the power of the drive shaft 10. This is transmitted to the driven shaft (40).

Therefore, according to the present invention, when the shaft 10 which needs to be inserted into the roller bearing 20 is inserted and rotated clockwise, the roller 22 moves on the inclined surface 24 and moves in the center direction, thereby driving the drive shaft 10 and the roller. Since the bearings 20 rotate together, the power of the drive shaft 10 is transmitted to the driven shaft 40.

In addition, even if the center of the drive shaft 10 and the driven shaft 40 is slightly inconsistent, the flexible coupling 30 is bent by the cutting groove 32, so that the plurality of shafts may be moved even if the positions of the shafts 10 and 40 are not moved. (10) 40 will be able to combine.

According to the present invention configured as described above, in the process of transmitting power by connecting a plurality of shafts, only the insertion and removal of the shaft is required as a power transmission device, so there is no need for a separate fastening means for combining the shaft and the power transmission device. Since the number of parts is reduced and the work for power transmission is simplified, the productivity is improved, and the flexible coupling constituting the power transmission device can easily combine a plurality of axes having a slightly different center of gravity without shifting positions. Workability is greatly improved.

Claims (1)

In the power transmission device for connecting the one shaft (10) and the other shaft (40) that requires insertion and transfer the power of one side to the other side, When the shaft 10 is inserted into the inner circumference is rotated in a specific direction, the roller 22 is a roller bearing 20 for holding the one side shaft 10 while advancing toward the center on the inclined surface 24, A plurality of cutting grooves 32 are formed in the circumferential direction, so that the roller bearing 20 is fixedly installed on one inner circumference and the other shaft 40 is fixedly installed on the other inner circumference. Power transmission device for easy shaft coupling.