TW201417460A - Shaft coupler movement structure with reduced size - Google Patents

Abstract

This invention relates to a shaft coupler movement structure with reduced size. The movement structure is disposed on a base, and the movement structure and the base are both passed therein through a rotatable load shaft which is provided with a permanent magnetic rotor at one end. The permanent magnetic rotor is connected to the load shaft and drives the rotation of the load shaft. The movement structure has one end connected to and drives the permanent magnetic rotor to move on the load shaft. The movement structure has a linkage pole sleeved on the load shaft, and the linkage pole has a terminal outwardly enlarged as a cylinder shape. A fixing disc is disposed at the spindle of the permanent magnetic rotor relative to the terminal of the linkage pole, such that the terminal of the linkage pole is covered on the exterior of the fixing disc and connected to the end face of the permanent magnetic rotor. A front bearing part is disposed between the movement structure and the linkage pole, and a rear bearing part is disposed at the connection position of the movement structure to the base.

Description

Reduced volume coupling movement structure

The present invention relates to the field of permanent magnet couplings, and more particularly to a reduction in the size of a moving structure to improve the coupling structure of the weight and space arrangement.

The conventional permanent magnet coupling is mainly composed of a magnetically permeable rotor (copper or aluminum) and a permanent magnet rotor (strong magnet). The magnetically permeable rotor is mainly fixed on the motor shaft, and the permanent magnet rotor is fixed on the load shaft, and there is a gap (commonly referred to as an air gap) between the magnetic permeable rotor and the permanent magnet rotor. In this way, the connection between the motor and the load is converted from a soft (mechanical) connection to a soft (magnetic) connection. By adjusting the air gap distance between the permanent magnet rotor and the magnetically permeable rotor, the output torque variation on the load shaft can be achieved. In order to achieve a change in load speed.

By using the permanent magnet coupling, the operating characteristics of the system can be significantly improved. The permanent magnet coupling drives the motor to start at no load before starting the load, which not only reduces the starting current of the motor and reduces the thermal shock load on the motor and the power. The influence of the system, thereby saving energy and extending the working life of the motor, and extremely effectively reducing the destructive tension of the transmission system on the conveyor belt during startup, eliminating the shock generated when the conveyor is started, and greatly reducing the transmission system itself. The start-up shock, extended belt, idler and other critical lifespans have improved the safe and reliable operation of the equipment, effectively reducing equipment maintenance and failure time costs.

In order to effectively perform the aforementioned functions, conventional permanent magnet couplings are usually provided with movement The structure is used to move the permanent magnet rotor on the load shaft to adjust the air gap between the permanent magnet rotor and the magnetically permeable rotor. However, in order to seek stability and high load capacity, the mobile structure of the conventional permanent magnet coupling has a large size, which increases the size and manufacturing cost of the product, and the application place also needs to cooperate to provide a wide expansion operation space.

In view of the shortcomings derived from the above-mentioned conventional devices, the inventor of the present invention has improved and innovated. After years of careful research, the permanent magnet coupling with the heat dissipating blades has been developed.

The main object of the present invention is to provide a reduced volume coupling structure, which reduces the overall weight of the permanent magnet coupling and reduces the space configuration by reducing the volume of the moving structure.

Another object of the present invention is to provide a reduced volume coupling movement structure that further increases the stability of the permanent magnet coupling and maintains efficiency during operation.

The invention relates to a reduced volume coupling moving structure which is arranged on a body for carrying other devices, including a load shaft, the load shaft is inserted through the moving structure and the seat body, and The permanent magnet rotor is coupled to drive the load shaft to rotate. The movable structure is connected at one end to the end face of the permanent magnet rotor, so that the moving structure drives the permanent magnet rotor to adjust the moving distance on the load shaft.

The moving structure is provided with a linkage rod on the load shaft, and the linkage rod An end is connected to the permanent magnet rotor, and a front bearing portion is disposed between the moving structure and the linkage rod, the bearing portion includes two ball bearings, so that the moving structure can push the linkage rod to control the permanent magnet rotor The load shaft moves, but the linkage rod is rotatable without being restricted by the moving structure due to the arrangement of the bearing portion. A rear bearing portion is disposed at a joint of the moving structure and the seat body, and the rear bearing portion is used as a bearing on the seat body, and the rear bearing portion and the seat body are provided with maintenance due to the position of the moving structure. The passage is convenient for maintenance work such as lubricating the moving structure from the outside of the seat. The permanent magnet rotor shaft portion is provided with a fixed disc, and the end of the connecting rod is expanded into a cylindrical shape, so that the end of the connecting rod is disposed outside the fixed disc and connected to the end surface of the permanent magnet rotor, by the fixed disc Retracting at the end of the linkage rod reduces the volume of the moving structure and maintains stability when the load shaft rotates.

Please refer to FIG. 1 to FIG. 4 , which is a reduced volume coupling movement structure provided by the present invention. The coupling comprises a magnetic connection between a magnetically permeable rotor 1 and a permanent magnet rotor 2 . The magnetic permeable rotor 1 is mainly fixed on a motor shaft (not shown), and the permanent magnet rotor 2 is fixed on the load shaft 5, and the permanent magnet rotor can be magnetically coupled via the magnetic permeable rotor 1 when the motor shaft is rotated by force. 2 to rotate.

There is an air gap between the magnetic oscillating rotor 1 and the permanent magnet rotor 2, and the permanent magnet rotor 2 is driven by the connection of the moving structure 3, and the air gap distance between the permanent magnet rotor 2 and the magnetic permeable rotor 1 can be adjusted. The output torque on the load shaft 5 is changed To achieve a change in load speed.

The moving structure 3 is mounted on a seat body 6, and the permanent magnet rotor 2 is coupled with a load shaft 5 that passes through the moving structure 3 and the seat body 6 to transmit power to the other implements via the load shaft 5. .

The moving structure 3 is sleeved with a linkage rod 7 on the load shaft 5, and the end of the linkage rod 71 is connected to the permanent magnet rotor 2. The front bearing portion 81 is disposed between the moving structure 3 and the linkage rod 7. The front bearing portion 81 includes two ball bearings, so that the moving structure 3 can push the linkage rod 7 to control the permanent magnet rotor 2 to adjust the air gap distance, but the linkage rod 7 is not provided by the front bearing portion 81. Rotating by the moving structure 3; the moving structure 3 is connected with the seat body 6 at a rear bearing portion 82, and the rear bearing portion 82 is also a ball bearing for use as the moving structure 3 on the seat body 6. The load of the front and rear bearing portions 81, 82 can effectively reduce the volume of the moving structure 3 and maintain stability. In addition, the rear bearing portion 82 is disposed between the moving structure 3 and the seat body 6, and a space between the seat body 6 and the seat body 6 is provided with a maintenance passage 83 for facilitating the moving structure 3 from the outside of the seat body 6. Maintenance work such as lubrication.

Furthermore, the permanent magnet rotor 2 is provided with a fixed disc 4 at the axial center portion, and the end of the interlocking rod 71 is expanded into a cylindrical shape, so that the end of the connecting rod 71 is disposed outside the fixed disc 4 and connected to the permanent magnet rotor. 2 end faces. In this manner, the fixed disk 4 is covered with the tubular end 71 of the interlocking rod, and the volume of the moving structure 3 can be greatly reduced, and the stability during use can be maintained.

The detailed description of the preferred embodiments of the present invention is intended to be limited to the scope of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

1‧‧‧magnetic rotor

2‧‧‧ permanent magnet rotor

3‧‧‧Mobile structure

4‧‧‧ Fixed disk

5‧‧‧Load shaft

6‧‧‧

7‧‧‧ linkage rod

71‧‧‧ linkage rod end

81‧‧‧Front Bearings

82‧‧‧ Rear Bearings

83‧‧‧Maintenance channel

The following is a detailed description of a preferred embodiment of the present invention and its accompanying drawings, and the technical contents of the present invention and its functions will be further understood; the drawings relating to the embodiment are: FIG. 1 is a permanent magnet of the present invention. 2 is a plan view of the permanent magnet coupling; FIG. 3 is a perspective cross-sectional view of the permanent magnet coupling of the present invention; and FIG. 4 is a plan sectional view of the permanent magnet coupling.

2‧‧‧ permanent magnet rotor

3‧‧‧Mobile structure

4‧‧‧ Fixed disk

5‧‧‧Load shaft

6‧‧‧

7‧‧‧ linkage rod

71‧‧‧ linkage rod end

81‧‧‧Front Bearings

82‧‧‧ Rear Bearings

83‧‧‧Maintenance channel

Claims (4)

A reduced volume coupling movement structure is disposed on a seat body. The moving structure and the seat body are disposed with a load shaft and can be rotated. The load shaft is provided with a permanent magnet rotor at one end, and the permanent magnet rotor is connected. Driving the load shaft to rotate, and the moving structure is connected at one end and drives the permanent magnet rotor to move on the load shaft, wherein the moving structure is sleeved with a linkage rod on the load shaft, and the end of the linkage rod is expanded outside a cylindrical shape, a fixing plate is disposed on the end portion of the permanent magnet rotor relative to the end of the connecting rod, and the end of the connecting rod is disposed outside the fixing plate to be connected to the end surface of the permanent magnet rotor; and the moving structure and the connecting rod A front bearing portion is disposed between the moving structure and the seat body is provided with a rear bearing portion. The reduced size coupling moving structure according to claim 1, wherein the front and rear bearing portions are ball bearings. The reduced volume coupling moving structure of claim 1, wherein the front bearing portion includes at least two bearings. The reduced size coupling moving structure according to claim 1, wherein a maintenance passage is provided between the rear bearing portion and the seat body to facilitate maintenance from the outside of the seat body.