CN210380620U

CN210380620U - Compact torque-limiting permanent magnet coupler

Info

Publication number: CN210380620U
Application number: CN201921605872.5U
Authority: CN
Inventors: 武运
Original assignee: Shanghai Cet Energy Technology Co ltd
Current assignee: Shanghai Cet Energy Technology Co ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-04-21
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a compact moment of torsion restriction permanent magnet coupler, include: 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 utility model discloses because of reduce half than the quantity of the permanent magnetism dish of ordinary type permanent magnet coupler and permanent magnet, its function is the same, simple structure, cost are 1/3 less than before, more do benefit to popularization and application.

Description

Compact torque-limiting permanent magnet coupler

Technical Field

The utility model relates to a compact moment of torsion restriction permanent magnet coupler belongs to permanent magnet coupler and permanent magnetism transmission technical field.

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.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a to the not enough of prior art existence, provide a compact moment of torsion restriction permanent magnet coupler, because of the quantity reduction half than the permanent magnetic disk of ordinary type permanent magnet coupler and permanent magnet, 1/3 are lacked before its function is the same, simple structure, cost are than, more do benefit to popularization and application.

In order to solve the above problems, the utility model adopts the following technical proposal:

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 utility model discloses an implement the effect as follows:

compact moment of torsion restriction permanent magnet coupler reduces half than the quantity of ordinary type permanent magnet coupler's permanent magnetism dish and permanent magnet, makes the load not rotating under the motor pivoted condition, guarantees that the motor can not receive the damage under the load trouble condition, and it compares with ordinary type permanent magnet coupler, and function is the same, simple structure, cost are 1/3 less than before, more do benefit to popularization and application.

Drawings

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

fig. 2 is the compact torque limiting permanent magnet coupler of the present invention.

Detailed Description

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

Example (b): as shown in fig. 2 (in fig. 1, two groups of permanent magnet discs a and B and two groups of conductor steel discs C and D used in cooperation with the permanent magnet discs a and B): a compact torque limiting permanent magnet coupler 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; a sealing ring 4 and a limiting block 5 are arranged in the air gap 3, and the limiting blocks 5 are respectively fixedly connected with the corresponding conductor steel discs 2; wherein, the minimum size of the air gap 3 is 3.2mm, and the width of the limiting block 5 is 3.2mm corresponding to the air gap 3; the compact torque limiting permanent magnet coupler further comprises a torque protection frame 6 used in a matched mode, one end of the torque protection frame 6 is arranged between the two conductor steel discs 2, and the other end of the torque protection frame 6 is provided with a flange 7 and a coupler 8 used in a matched mode is installed through the flange 7. The utility model discloses a shown compact moment of torsion restriction permanent magnet coupler, drive shaft coupling 8 through the motor, and shaft coupling 8 drives

conductor steel disc

2, 2 moments of torsion of conductor steel disc transmit permanent magnetic disc 1 on, 1 moment of torsion of permanent magnetic disc transmits the load on, when the moment of torsion of load surpasses the rated torque of coupler, 2 repulsion forces of conductor steel disc can be given to permanent magnetic disc 1, push conductor steel disc 2 open, it removes the moment of torsion transmission of permanent magnetic disc 1 and conductor steel disc 2, make the load not rotating under the motor pivoted condition, the motor can not receive the damage under the assurance load fault condition. The torque protection frame 6 is also used for connecting and assembling the entire coupling, and has a load-relieving effect.

Specifically, the torque protection frame 6 is provided with a plurality of connecting plates 61 at equal intervals through bolts, and the outer walls of the connecting plates 61 are of arc-shaped structures, so that the mounting and dismounting are convenient; and one end corresponding to the coupler 8 is also provided with a motor shaft 9 for matching use.

To sum up, the utility model has the characteristics of compact structure, only use half permanent magnet and permanent-magnet disc just can reach the same kind of function, reduce half than the quantity of the permanent-magnet disc of ordinary type permanent magnet coupler and permanent magnet, make the load not rotating under the motor pivoted condition, guarantee that the motor can not receive the damage under the load trouble condition, it compares with ordinary type permanent magnet coupler, the function is the same, simple structure, cost are less 1/3 before than, more do benefit to popularization and application.

The foregoing is a detailed description of the invention in connection with specific embodiments thereof, and it is not intended that the invention be limited to these specific embodiments. To the utility model belongs to the technical field of technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses the scope of protection.

Claims

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).