阅读说明：本技术 一种可控永磁常闭式盘式制动器 (Controllable permanent magnet normally closed disc brake ) 是由 蒋庆楠 于 2021-09-08 设计创作，主要内容包括：一种可控永磁常闭式盘式制动器,包括活塞杆装置、永磁体装置、外部装置、蝶形弹簧。活塞杆装置在筒体内受蝶形弹簧和永磁体装置的作用在筒体内运动,包括活塞轴、闸瓦、缓冲装置、轴端导磁体,轴端导磁体受永磁力作用。永磁体装置,包括永磁体、导磁体；永磁体安装在导磁体内部,通过磁化导磁体使导磁体产生磁性,从而提供永磁力；通过调节永磁体在导磁体的角度,来调节通过导磁体磁通大小,改变导磁体的磁性,从而达到改变永磁力的目的。外部装置,包括轴套、端盖、螺母、筒体；用来保护和固定其他装置。蝶形弹簧产生弹簧力紧压活塞轴,使活塞轴上的闸瓦紧密压紧制动盘,通过调节活塞轴受的永磁力和弹簧力大小来制动。该发明结构简单、无污染、永磁力可控、具有多级制动等优点。(A controllable permanent magnet normally closed disc brake comprises a piston rod device, a permanent magnet device, an external device and a belleville spring. The piston rod device moves in the cylinder under the action of the belleville spring and the permanent magnet device, and comprises a piston shaft, a brake shoe, a buffer device and a shaft end magnetizer, wherein the shaft end magnetizer is under the action of permanent magnetic force. The permanent magnet device comprises a permanent magnet and a magnetizer; the permanent magnet is arranged in the magnetizer, and the magnetizer generates magnetism by magnetizing the magnetizer, so that permanent magnetic force is provided; the magnetic flux passing through the magnetizer is adjusted by adjusting the angle of the permanent magnet on the magnetizer, and the magnetism of the magnetizer is changed, so that the aim of changing the permanent magnetic force is fulfilled. The external device comprises a shaft sleeve, an end cover, a nut and a cylinder body; for protecting and securing other devices. The butterfly spring generates spring force to press the piston shaft, so that a brake shoe on the piston shaft tightly presses a brake disc, and the brake is realized by adjusting the magnitude of the permanent magnetic force and the spring force applied to the piston shaft. The invention has the advantages of simple structure, no pollution, controllable permanent magnetic force, multi-stage braking and the like.)

1. A controllable permanent magnet normally closed disc brake is characterized in that: the permanent magnet comprises a permanent magnet (1), an end cover nut (2), an end cover (3), a cylinder body (4), magnetic conductive iron (5), a shaft end magnetizer (6), a cylinder body nut (7), a shaft sleeve (8), a pin (9), a brake disc (10), a buffer device (11), a brake shoe (12), a piston shaft (13) and a disc spring (14), wherein the end cover nut (2) connects the end cover (3) and the cylinder body (4) together, the cylinder body nut (7) connects the cylinder body (4) and the shaft sleeve (8) together, two ends of the disc spring (14) are respectively connected with the cylinder body (4) and the piston shaft (13), the permanent magnet (1) is arranged in the magnetizer (5), the magnetizer (5) is arranged on the end cover (3), two ends of the piston shaft (13) are respectively provided with the shaft end magnetizer (6) and the brake shoe (12), the brake shoe (12) is connected with the piston shaft (13) through the pin (9), the buffer device (11) is connected to the brake shoe (12), and the buffer device (11) presses the brake disc (10).

2. A controllable permanent-magnet normally closed disc brake as claimed in claim 1, characterized in that: a magnetizer (6) is added at the end of the piston shaft (13) so as to receive the force provided by the permanent magnet (1) to the permanent magnet.

3. A controllable permanent-magnet normally closed disc brake as claimed in claim 1, characterized in that: the piston shaft (13) is connected through a belleville spring (14) so that a brake shoe (12) of the piston shaft (13) presses the brake disc (10).

4. A controllable permanent-magnet normally closed disc brake as claimed in claim 1, characterized in that: the permanent magnet (1) is arranged in the magnetizer (5) to ensure that the magnetizer (5) has magnetism.

5. A controllable permanent-magnet normally closed disc brake as claimed in claim 1, characterized in that: the magnetizer (5) is arranged in the end cover (3) to fix the magnetizer (5).

6. A controllable permanent-magnet normally closed disc brake as claimed in claim 1, characterized in that: the permanent magnetic force is adjusted by adjusting the angle of the permanent magnet (1) in the magnetizer (5).

7. A controllable permanent-magnet normally closed disc brake as claimed in claim 1, characterized in that: the piston shaft (13) works under the action of the magnetizer (5) and the belleville spring (14).

Technical Field

The invention relates to the field of mine hoist equipment, in particular to a controllable permanent magnet normally closed disc brake.

Background

In mine hoist equipment, a normally closed disc brake mostly adopts a hydraulic form, has the problems of large volume and oil pollution, and provides a pollution-free, energy-saving and controllable permanent magnet multistage braking device in order to solve the problems.

Disclosure of Invention

The invention aims to provide a controllable permanent magnet normally closed disc brake. Under the normal condition, the spring force of the belleville spring is far greater than the permanent magnetic force of the permanent magnet, and the belleville spring enables the piston shaft to press the brake disc; when the brake shoe works, the permanent magnet rotates by a certain angle, the electromagnet conducts magnetism, the shaft end magnetizer is attracted, the permanent magnetic force is increased, and when the permanent magnetic force is larger than the braking force of the spring, the brake shoe is separated from the brake disc. The provided permanent magnetic force is changed through the rotation angle of the permanent magnet, so that the permanent magnetic force continuously balances the braking force of the spring, and the multi-stage safety braking function of the brake is achieved. Has the advantages of small volume, no pollution and controllability.

The invention adopts the following technical scheme for realizing the purpose:

the utility model provides a controllable permanent magnetism normally closed disk brake, including the permanent magnet, the end cover nut, the end cover, the barrel, the magnetic conduction iron, the axle head magnetizer, the barrel nut, the axle sleeve, the pin, the brake disc, buffer, the brake shoe, the piston shaft, disc spring constitutes, the end cover nut links together end cover and barrel, the barrel nut links together barrel and axle sleeve, disc spring both ends are connected barrel and piston shaft respectively, the permanent magnet is installed in the magnetizer, the magnetizer is installed on the end cover, there are axle head magnetizer and brake shoe respectively at the both ends of piston shaft, the brake shoe passes through pin joint with the piston shaft, buffer connects on the brake shoe, buffer compresses tightly the brake disc.

Preferably, the invention provides a controllable permanent magnet normally closed disc brake, wherein a magnetizer is added at the tail end of a piston shaft, so that the magnetizer can receive permanent magnet force provided by a permanent magnet;

preferably, the piston shaft is connected through a belleville spring, so that a brake shoe of the piston shaft presses a brake disc;

preferably, the permanent magnet is installed in the magnetizer, so that the magnetizer has magnetism;

preferably, according to the controllable permanent magnet normally-closed disc brake provided by the invention, the magnetizer is arranged in the end cover, so that the magnetizer is fixed;

preferably, the controllable permanent magnet normally closed disc brake provided by the invention adjusts the permanent magnet force by adjusting the angle of the permanent magnet in the magnetizer;

preferably, the piston shaft works under the action of the magnetizer and the belleville spring.

Has the advantages that:

1. the permanent magnet generates permanent magnetic force to attract the piston, so that the brake shoe is separated from the brake disc, and the magnetic energy provided by the permanent magnet is used in the whole process, so that the brake shoe is energy-saving and environment-friendly;

2. the permanent magnetic force of the permanent magnet is changed by adjusting the rotation angle of the permanent magnet on the magnetizer, so that multi-stage braking can be realized;

3. simple structure, installation and maintenance are convenient.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention: 1-a permanent magnet; 2-end cap nut; 3-end cover; 4-a cylinder body; 5-magnetic iron; 6-shaft end magnetizer; 7-barrel nut; 8-shaft sleeve; 9-pins; 10-a brake disc; 11-a buffer device; 12-a brake shoe; 13-a piston shaft; 14-belleville spring.

FIG. 2 shows the permanent magnet state in the normal case of the present invention

FIG. 3 shows the permanent magnet state under the working condition of the present invention

The specific implementation mode is as follows:

the invention is further illustrated by the following specific examples.

The utility model provides a controllable permanent magnetism normal close formula disc brake, a braking for mine winder, including permanent magnet 1, permanent magnet 1 installs the inside at magnetizer 2, magnetizer 2 installs the inside at end cover 3, link together end cover 3 and barrel 4 through end cover nut 2, link together barrel 4 and axle sleeve 8 through barrel nut 7, disc spring 14 is equipped with on barrel 4, disc spring 14's opposite side is fixed with piston shaft 13, install axle head magnetizer 6 in the left side of piston shaft 13, piston shaft 13 is connected through pin 9 with brake shoe 12, buffer 11 is installed to the end at brake shoe 12, buffer and brake disc 10 tightly link together.

The piston shaft 13 and one end of the magnetic iron 5 close to the magnetic iron are made of magnetic materials, so that permanent magnetic attraction is facilitated.

Normally, the N pole of the permanent magnet 1 faces the piston shaft 13, the belleville spring 14 is in a compressed state, the spring force applied to the piston shaft is greater than the permanent magnetic force provided by the permanent magnet 1, the piston shaft moves to the right, and simultaneously the brake shoe 12 and the buffer device 11 are driven to press the brake disc 10, and the brake disc is in a braking state.

When the permanent magnet 1 rotates by a certain angle, a magnetic induction line passes through the magnetizer 5, the shaft end magnetizer 6 is magnetized to have certain magnetism, at the moment, the magnetizer 5 attracts the shaft end magnetizer 6, the shaft end magnetizer 6 moves leftwards under the action of magnetic force, but the spring force provided by the belleville spring 14 is greater than the magnetic force and cannot move at the moment, when the certain angle is reached, namely, the permanent magnetic force is greater than the spring force, the piston shaft moves leftwards, the buffer device 11 is separated from the brake disc 10, and at the moment, the brake device is in a non-braking state. The rotation angle of the permanent magnet can be controlled to provide different permanent magnetic forces to counteract the electromagnetic force provided by the belleville spring 14, and the multi-stage braking effect of the brake can be realized because the controllable angle achieves the function of control force.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.