阅读说明：本技术 一种紧凑型扭矩限制永磁耦合器 (Compact torque-limiting permanent magnet coupler ) 是由 武运 于 2019-09-25 设计创作，主要内容包括：本发明公开了一种紧凑型扭矩限制永磁耦合器,包括：一个永磁盘和两个导体钢盘,两个所述导体钢盘对称设置在永磁盘两侧,且所述永磁盘与两个导体钢盘之间均形成有气隙；所述气隙内均设有密封圈和限位块,所述限位块分别与对应的导体钢盘固定连接。本发明因比普通型永磁耦合器的永磁盘和永磁体的数量减少一半,其功能相同、结构简单、成本比之前少1/3,更利于推广和应用。(The invention discloses a compact torque-limiting permanent magnet coupler, which comprises: the permanent magnet disc comprises a permanent magnet disc and two conductor steel discs, wherein the two conductor steel discs are symmetrically arranged on two sides of the permanent magnet disc, and air gaps are formed between the permanent magnet disc and the two conductor steel discs; and a sealing ring and a limiting block are arranged in the air gap, and the limiting blocks are respectively fixedly connected with the corresponding conductor steel discs. The invention reduces half of the number of the permanent magnet discs and the permanent magnets compared with the common permanent magnet coupler, has the same function, simple structure and lower cost than the prior 1/3, and is more beneficial to popularization and application.)

1. A compact torque-limiting permanent magnet coupler, characterized by: the method comprises the following steps: the permanent magnet disc comprises a permanent magnet disc (1) and two conductor steel discs (2), wherein the two conductor steel discs (2) are symmetrically arranged on two sides of the permanent magnet disc (1), and air gaps (3) are formed between the permanent magnet disc (1) and the two conductor steel discs (2);

all be equipped with sealing washer (4) and stopper (5) in air gap (3), stopper (5) respectively with corresponding conductor steel dish (2) fixed connection.

2. The compact torque-limiting permanent magnet coupler of claim 1, wherein: the minimum size of air gap (3) is 3.2mm, the width of stopper (5) also is 3.2mm with air gap (3) correspondence.

3. The compact torque-limiting permanent magnet coupler of claim 1, wherein: compact torque restriction permanent magnet coupler is still including the moment of torsion protective frame (6) that the cooperation was used, moment of torsion protective frame (6) one end sets up between two conductor steel discs (2), moment of torsion protective frame (6) other end is equipped with flange (7) and installs shaft coupling (8) that the cooperation was used through flange (7).

4. The compact torque-limiting permanent magnet coupler of claim 3, wherein: a plurality of connecting plates (61) are arranged on the torque protection frame (6) at equal intervals through bolts, and the outer walls of the connecting plates (61) are of arc-shaped structures.

5. The compact torque-limiting permanent magnet coupler of claim 3, wherein: and a motor shaft (9) is also arranged at one end corresponding to the coupler (8).

Technical Field

The invention relates to a compact torque-limiting permanent magnet coupler, and belongs to the technical field of permanent magnet couplers and permanent magnet transmission.

Background

The permanent magnet coupler is characterized in that a conductor material on a conductor disc cuts magnetic lines on a permanent magnet disc to generate nest current to form a counter-induction magnetic field to transfer torque, when power exceeds rated torque, suction force of a permanent magnet can be changed into thrust force to separate the conductor disc from the permanent magnet disc, a torque transfer terminal is realized, and the effect of protecting a motor and load equipment is achieved. The permanent magnet coupler in the prior art has the structure that two permanent magnet discs correspond to two conductor discs, namely one permanent magnet disc acts on one conductor steel disc, and because the two sides of the permanent magnet disc are both magnetic, the characteristic can be utilized, so that one permanent magnet disc acts on two conductor steel discs, half of the permanent magnet and one permanent magnet disc can be saved in the coupler with the same power, the price of the permanent magnet disc and the price of the permanent magnet occupy about 1/3 in the overall cost, the cost of the permanent magnet coupler can be greatly reduced, and the permanent magnet coupler has good advantages in popularization, application and competition.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a compact torque-limiting permanent magnet coupler, which has the advantages of same function, simple structure and lower cost than the conventional 1/3 because the number of permanent magnet discs and permanent magnets is reduced by half compared with the number of the permanent magnet discs and the permanent magnets of a common permanent magnet coupler, and is more beneficial to popularization and application.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

a compact torque-limiting permanent magnet coupler, comprising: the permanent magnet disc comprises a permanent magnet disc and two conductor steel discs, wherein the two conductor steel discs are symmetrically arranged on two sides of the permanent magnet disc, and air gaps are formed between the permanent magnet disc and the two conductor steel discs;

and a sealing ring and a limiting block are arranged in the air gap, and the limiting blocks are respectively fixedly connected with the corresponding conductor steel discs.

As an improvement of the technical scheme, the minimum size of the air gap is 3.2mm, and the width of the limiting block corresponds to the air gap and is also 3.2 mm.

As an improvement of the technical scheme, the compact torque limiting permanent magnet coupler further comprises a torque protection frame used in a matched mode, one end of the torque protection frame is arranged between the two conductor steel discs, and the other end of the torque protection frame is provided with a flange and is provided with a coupler used in a matched mode through the flange.

As an improvement of the technical scheme, a plurality of connecting plates are arranged on the torque protection frame at equal intervals through bolts, and the outer walls of the connecting plates are of arc-shaped structures.

As an improvement of the technical scheme, a motor shaft is further arranged at one end corresponding to the coupler.

Compared with the prior art, the invention has the following implementation effects:

compared with the common permanent magnet coupler, the compact torque limiting permanent magnet coupler has the advantages that the number of the permanent magnet discs and the number of the permanent magnets are reduced by half, so that the load does not rotate under the condition that the motor rotates, the motor is not damaged under the condition of load failure, and compared with the common permanent magnet coupler, the compact torque limiting permanent magnet coupler has the same function, simple structure and lower cost of 1/3, and is more beneficial to popularization and application.

Drawings

FIG. 1 is a schematic diagram of a conventional compact torque-limiting permanent magnet coupler;

fig. 2 is a schematic structural diagram of the compact torque-limiting permanent magnet coupler according to the present invention.

Detailed Description

The present invention will be described with reference to specific examples.