Linear motor brake device

Abstract

The utility model discloses a linear motor brake device which comprises a linear motor body, the linear motor body is provided with a linear motor brake device, and the left and right inner walls of the linear motor body and the left and right ends of the linear motor brake device are respectively provided with an anti-collision structure. According to the linear motor brake device, when the linear motor needs to slide, the electromagnet is powered on, the electromagnet attracts the magnetic metal sliding plate due to magnetism, the first spring is squeezed, the sliding plate and the brake pad are made to be far away from the sliding rail, and braking of the sliding block is canceled; the electromagnet is powered off, the sliding plate is not attracted, due to reset of the first spring, the sliding plate and the brake pad rapidly get close to the sliding rail, the sliding block is braked, the braking effect is good, an anti-collision structure is installed, when the linear motor moves to the two ends, flexible rubber blocks are impacted, a buffer plate extrudes a second spring, and then the sliding block can be buffered and protected.

Description

Technical Field

[0001] The utility model relates to the technical field of linear motors, in particular to a linear motor brake device. Background Art

[0002] Linear motor brakes, also known as braking, are a technical means of stopping the motor from moving by applying torque. The principle of linear motor brakes is mainly to generate magnetic force through DC electromagnets to brake. After adjusting the brake tension, no part of the machine can move, thereby ensuring the safe operation of the mechanical device. The brakes of linear motors mainly rely on electromagnetic braking and mechanical braking.

[0003] The prior art has a patent publication number of CN216312865U, and the technical solution disclosed in the patent document is as follows: a linear motor brake device. The device includes a body, the body at least includes a slider structure that matches the linear motor guide rail, a piston chamber is provided in the body, the air inlet end of the piston chamber is connected to the compressed air pipeline, and the other end is provided with a piston push rod, and the piston push rod can be pressed against the linear motor guide rail under the action of compressed air to achieve the brake of the mover slide.

[0004] The above patent uses compressed air to press the piston push rod against the guide rail, thereby braking the linear motor. However, when the compressed air is cut off, it is difficult for the piston push rod to separate from the guide rail quickly, thereby affecting the continued movement of the linear motor. Utility Model Content

[0005] The purpose of the utility model is to provide a linear motor brake device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a linear motor brake device, comprising a linear motor body, on which the linear motor brake device is installed, and anti-collision structures are installed on the left and right inner walls of the linear motor body and at the left and right ends of the linear motor brake device.

[0007] The linear motor brake device comprises guide rails, which are arranged at the front and rear ends of the linear motor body. Slide blocks are slidably mounted on the guide rails, and support seats are bolted to the slide blocks.

[0008] The anti-collision structure comprises a mounting tube, which is arranged on the left and right inner walls of the linear motor body, and the inner walls of the mounting tube are provided with limiting grooves, and a buffer component is installed in the mounting tube.

[0009] As a further preferred embodiment of the present technical solution, a ball bearing slide groove is provided on the upper part of the front and rear sides of the guide rail, and a slide rail is provided in the middle part of the front and rear sides of the guide rail.

[0010] As a further preferred embodiment of the technical solution, two ball bearing grooves are provided at the inner corners of the slider, mounting grooves are provided on the inner walls of the slider, mounting plates are bolted to the left and right sides of the slider, and brake structures are installed in the mounting grooves.

[0011] As a further preferred embodiment of the present technical solution, balls are rolled inside the second ball slide groove, and the balls are slidably connected to the first ball slide groove.

[0012] As a further preferred embodiment of the present technical solution, the brake structure includes an electromagnet, which is arranged in a mounting groove and electrically connected to an external power supply. A spring is provided on the electromagnet, a slide is provided on the other side of the spring, and the slide is made of magnetic metal, and a brake pad is provided on the outer surface of the slide.

[0013] In the above technical solution, the electromagnet is powered off so that the slide plate is not attracted, and due to the reset of spring 1, the slide plate and the brake pad quickly approach the slide rail to brake the slider, and the braking effect is better.

[0014] As a further preferred embodiment of the present technical solution, the buffer assembly includes two springs, and the two springs are arranged inside the mounting tube. A buffer plate is embedded in the other side of the two springs, and a rubber block is arranged on the outer side of the buffer plate.

[0015] In the above technical solution, when the linear motor moves to both ends, it hits the flexible rubber block, causing the buffer plate to squeeze the second spring, thereby providing buffer protection for the slider.

[0016] As a further preferred embodiment of the present technical solution, a limiting block is arranged on the outer side of the buffer plate, and the outer wall of the limiting block is slidably connected to the inner wall of the limiting groove.

[0017] In the above technical solution, when the second spring is squeezed, the limit block slides in the limit groove, so that the buffer plate is not easily displaced when moving, and the compression effect of the second spring is not easily affected, thereby improving the buffering effect.

[0018] The utility model provides a linear motor brake device, which has the following beneficial effects:

[0019] (1) The utility model installs a linear motor brake device. When the linear motor needs to slide, the electromagnet is energized. Due to the magnetism, the electromagnet attracts the magnetic metal slide, and the spring is squeezed, so that the slide and the brake pad are moved away from the slide rail, and the slider is braked. When the linear motor needs to stay at a certain position, the electromagnet is powered off, so that the slide is not attracted, and the slide and the brake pad quickly approach the slide rail due to the reset of the spring, so that the slider is braked, and the braking effect is better.

[0020] (2) The utility model installs an anti-collision structure. When the linear motor moves to the two ends, it hits the flexible rubber block, causing the buffer plate to squeeze the spring 2, thereby providing buffer protection for the slider, reducing the damage caused by the slider hitting the two ends and increasing the service life of the slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of the linear motor brake device of the utility model;

[0023] Figure 3 It is an enlarged view of Figure B of the present utility model;

[0024] Figure 4 It is an enlarged view of Figure A of the present utility model;

[0025] Figure 5 It is a structural schematic diagram of the anti-collision structure of the utility model;

[0026] In the figure: 1. Linear motor body; 2. Linear motor brake device; 3. Anti-collision structure; 21. Guide rail; 22. Slider; 23. Support seat; 211. Ball slide groove 1; 212. Slide rail; 221. Ball slide groove 2; 222. Ball; 223. Mounting groove; 224. Mounting plate; 225. Braking structure; 2251. Electromagnet; 2252. Spring 1; 2253. Slide plate; 2254. Brake pad; 31. Mounting cylinder; 311. Limiting groove; 32. Buffer assembly; 321. Spring 2; 322. Buffer plate; 323. Limiting block; 324. Rubber block. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] The utility model provides a technical solution: Figure 1 As shown, in this embodiment, a linear motor brake device includes a linear motor body 1, on which a linear motor brake device 2 is installed, and anti-collision structures 3 are installed on the left and right inner walls of the linear motor body 1 and at the left and right ends of the linear motor brake device 2.

[0029] like Figure 2 , Figure 3 and Figure 4As shown, the linear motor brake device 2 includes a guide rail 21, which is arranged at the front and rear ends of the linear motor body 1, and a slider 22 is slidably installed on the guide rail 21, and a support seat 23 is bolted on the slider 22. A ball slide groove 1 211 is opened above the front and rear sides of the guide rail 21, and a slide rail 212 is opened in the middle of the front and rear sides of the guide rail 21. A ball slide groove 221 is opened at the inner corner of the slider 22, and a mounting groove 223 is opened on the inner wall of the slider 22. A mounting plate 224 is bolted on the left and right sides of the slider 22, and a brake structure 225 is installed in the mounting groove 223. Balls 222 are rollingly arranged inside the ball slide groove 221, and the balls 222 are slidably connected to the ball slide groove 1 211. The brake structure 225 includes an electromagnet 2251, which is arranged in the mounting groove 223, and the electromagnet 2251 is electrically connected to the external power supply. There is a spring 2252, and a slide plate 2253 is arranged on the other side of the spring 2252, and the slide plate 2253 is made of magnetic metal, and a brake pad 2254 is arranged on the outer surface of the slide plate 2253. By installing the linear motor brake device 2, when the linear motor needs to slide, the electromagnet 2251 is energized, and due to the magnetism, the electromagnet 2251 attracts the slide plate 2253 made of magnetic metal, and the spring 2252 is squeezed, so that the slide plate 2253 and the brake pad 2254 are away from the slide rail 212, and the slider 22 cancels the braking. When the linear motor needs to stay at a certain position, the electromagnet 2251 is powered off, so that the slide plate 2253 is not attracted, and due to the reset of the spring 2252, the slide plate 2253 and the brake pad 2254 quickly approach the slide rail 212, and the slider 22 is braked, and the braking effect is better. The brake pad 2254 is made of friction material and has a better braking effect.

[0030] like Figure 1 and Figure 5 As shown, the anti-collision structure 3 includes a mounting cylinder 31, and the mounting cylinder 31 is arranged on the left and right inner walls of the linear motor body 1. The inner walls of the mounting cylinder 31 are provided with limiting grooves 311, and buffer components 32 are installed in the mounting cylinder 31. The buffer components 32 include spring 2 321, and the spring 2 321 is arranged inside the mounting cylinder 31. A buffer plate 322 is embedded on the other side of the spring 2 321, and a rubber block 324 is arranged on the outer side of the buffer plate 322. A limiting block 323 is arranged on the outer side of the buffer plate 322, and the outer wall of the limiting block 323 is slidably connected with the inner wall of the limiting groove 311. By installing the anti-collision structure 3, when the linear motor moves to both ends, it hits the flexible rubber block 324, so that the buffer plate 322 squeezes the spring 2 321, so that the slider 22 can be buffered and protected, the damage caused by the slider 22 hitting the two ends is reduced, and the service life of the slider 22 is improved.

[0031] The utility model provides a linear motor brake device, and the specific working principle is as follows: when the linear motor needs to slide, the electromagnet 2251 is energized, and due to the magnetism, the electromagnet 2251 attracts the slide plate 2253 of the magnetic metal, and the spring 2252 is squeezed, so that the slide plate 2253 and the brake pad 2254 are away from the slide rail 212, and the slider 22 cancels the brake; when the linear motor needs to stay at a certain position, the electromagnet 2251 is powered off, so that the slide plate 2253 is not attracted, and due to the reset of the spring 2252, the slide plate 2253 and the brake pad 2254 quickly approach the slide rail 212, and the slider 22 is braked; when the linear motor moves to the two ends, it hits the flexible rubber block 324, so that the buffer plate 322 squeezes the spring 2 321, and the slider 22 can be buffered and protected.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A linear motor brake device, comprising a linear motor body (1), characterized in that: A linear motor brake device (2) is installed on the linear motor body (1), and anti-collision structures (3) are installed on the left and right inner walls of the linear motor body (1) and at the left and right ends of the linear motor brake device (2); The linear motor brake device (2) comprises a guide rail (21), the guide rail (21) is arranged at the front and rear ends of the linear motor body (1), a slider (22) is slidably mounted on the guide rail (21), and a support seat (23) is bolted to the slider (22); The anti-collision structure (3) comprises a mounting tube (31), the mounting tube (31) being arranged on the left and right inner walls of the linear motor body (1), the inner walls of the mounting tube (31) being provided with a limiting groove (311), and a buffer assembly (32) being installed in the mounting tube (31).

2. A linear motor brake device according to claim 1, characterized in that: A ball sliding groove (211) is provided above the front and rear sides of the guide rail (21), and a sliding rail (212) is provided in the middle of the front and rear sides of the guide rail (21).

3. A linear motor brake device according to claim 1, characterized in that: The inner corners of the slider (22) are each provided with a second ball bearing slide groove (221), the inner wall of the slider (22) is each provided with a mounting groove (223), the left and right sides of the slider (22) are each bolted with mounting plates (224), and a brake structure (225) is each installed in the mounting groove (223).

4. A linear motor brake device according to claim 3, characterized in that: The second ball slide groove (221) is provided with rolling balls (222) inside, and the balls (222) are slidably connected to the first ball slide groove (211).

5. A linear motor brake device according to claim 3, characterized in that: The brake structure (225) includes an electromagnet (2251), which is arranged in a mounting groove (223) and electrically connected to an external power supply. A spring (2252) is arranged on the electromagnet (2251), and a slide plate (2253) is arranged on the other side of the spring (2252). The slide plate (2253) is made of magnetic metal, and a brake pad (2254) is arranged on the outer surface of the slide plate (2253).

6. A linear motor brake device according to claim 1, characterized in that: The buffer assembly (32) comprises a second spring (321), the second spring (321) is arranged inside the mounting tube (31), a buffer plate (322) is embedded on the other side of the second spring (321), and a rubber block (324) is arranged on the outside of the buffer plate (322).

7. A linear motor brake device according to claim 6, characterized in that: A limiting block (323) is arranged outside the buffer plate (322), and the outer wall of the limiting block (323) is slidably connected to the inner wall of the limiting groove (311).

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