CN214314882U

CN214314882U - Small linear motor

Info

Publication number: CN214314882U
Application number: CN202022792098.2U
Authority: CN
Inventors: 张磊; 张伟
Original assignee: Supersonic Intelligent Technology Hangzhou Co ltd
Current assignee: Supersonic Intelligent Technology Hangzhou Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-09-28
Anticipated expiration: 2030-11-27

Abstract

The utility model provides a small-size linear motor, including rectangular form end box, the upper surface of end box is provided with two linear guide rails, linear guide rail extends along end box length direction, is provided with the stator between two linear guide rails, slidable mounting has the active cell on the linear guide rail, the top of active cell is provided with the rotor seat; the bottom box has no bottom, a bottom plate is arranged below the bottom box, a rectangular telescopic cylinder is arranged on the upper surface of the bottom plate, a buffer spring is arranged inside the telescopic cylinder, and the top and the bottom of the buffer spring are fixedly connected with the inner top of the bottom box and the upper surface of the bottom plate respectively. The utility model discloses a buffer spring's self elasticity offsets the vibrations that linear electric motor produced, avoids vibrations to spread all around along the bottom plate, helps weakening the noise that vibrations produced simultaneously, reduces the influence to the surrounding environment.

Description

Small linear motor

Technical Field

The utility model belongs to the technical field of the motor technique and specifically relates to a small-size linear motor is related to.

Background

A linear motor is a transmission device that directly converts electric energy into mechanical energy for linear motion without any intermediate conversion mechanism. The linear motor can be seen as a rotary motor which is formed by cutting open in the radial direction and expanding into a plane, and is also called a linear motor, a linear motor and a push rod motor. The most common types of linear motors are flat and U-slot, and tubular. The coil is typically composed of three phases, and brushless phase conversion is realized by a Hall element; linear motors are often described simply as rotating motors being flattened and operating on the same principle. The mover is made by compressing the coils together with epoxy material; the magnetic track is a magnet (usually a high energy rare earth magnet) fixed to steel. The mover of the motor includes a coil winding, a hall element circuit board, a thermistor (temperature sensor monitors temperature) and an electronic interface. The side evolved from the stator is called the primary and the side evolved from the rotor is called the secondary. In practice, the primary and secondary are manufactured in different lengths to ensure that the coupling between the primary and secondary remains constant over the required range of travel.

The linear motor can be a short primary long secondary and can also be a long primary short secondary. In consideration of manufacturing cost and operating cost, a linear induction motor is taken as an example: when the primary winding is connected with an AC power supply, a travelling wave magnetic field is generated in the air gap, and the secondary winding is cut by the travelling wave magnetic field to induce electromotive force and generate current, and the current and the magnetic field in the air gap interact to generate electromagnetic thrust. If the primary is fixed, the secondary moves linearly under the action of thrust; otherwise, the primary stage moves linearly. Traditional linear electric motor can produce great vibrations when the operation, and the vibrations of production are passed through the base and are dispersed all around, can cause the puzzlement to the surrounding environment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a small-size linear electric motor to solve traditional linear electric motor that provides in the above-mentioned background art can produce great vibrations when the function, the vibrations of production are passed through the base and are dispersed all around, can cause the puzzlement scheduling problem to the surrounding environment.

The technical scheme of the utility model is realized like this:

a small linear motor comprises a strip-shaped bottom box, wherein two linear guide rails are arranged on the upper surface of the bottom box, the linear guide rails extend along the length direction of the bottom box, a stator is arranged between the two linear guide rails, a rotor is arranged on the linear guide rails in a sliding mode, and a rotor seat is arranged at the top of the rotor;

the bottom box has no bottom, a bottom plate is arranged below the bottom box, a rectangular telescopic cylinder is arranged on the upper surface of the bottom plate, a buffer spring is arranged inside the telescopic cylinder, and the top and the bottom of the buffer spring are fixedly connected with the inner top of the bottom box and the upper surface of the bottom plate respectively.

Preferably, a sealing frame is arranged at an opening at the bottom of the bottom box, and the outer wall of the telescopic cylinder is in sliding fit with the inner wall of the sealing frame.

Preferably, the top of the telescopic cylinder extends outwards and horizontally to form a limiting part, and the limiting part is positioned right above the sealing frame.

Preferably, both ends of the linear guide rail are provided with anti-collision ends.

Preferably, the length of the bottom plate is greater than that of the bottom box, and fixing holes are formed in two ends of the bottom plate.

Preferably, the number of the buffer springs is a plurality, and the buffer springs are uniformly distributed in the length direction of the bottom plate.

By adopting the technical scheme, the beneficial effects of the utility model are that:

the utility model discloses a buffer spring's self elasticity offsets the vibrations that linear electric motor produced, avoids vibrations to spread all around along the bottom plate, helps weakening the noise that vibrations produced simultaneously, reduces the influence to the surrounding environment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a front view of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention.

Wherein:

1. a bottom case; 2. a linear guide rail; 3. a mover; 4. an animal seat; 5. an anti-collision end; 6. a base plate; 7. a telescopic cylinder; 8. a sealing frame; 9. a limiting part; 10. a buffer spring; 11. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, a small linear motor includes a strip-shaped bottom case 1, two linear guide rails 2 are disposed on an upper surface of the bottom case 1, the linear guide rails 2 extend along a length direction of the bottom case 1, a stator is disposed between the two linear guide rails 2, a mover 3 is slidably mounted on the linear guide rails 2, and a mover seat 4 is disposed at a top of the mover 3;

the bottom box 1 is bottomless, the bottom plate 6 is arranged below the bottom box 1, the rectangular telescopic cylinder 7 is arranged on the upper surface of the bottom plate 6, the buffer spring 10 is arranged inside the telescopic cylinder 7, and the top and the bottom of the buffer spring 10 are fixedly connected with the inner top of the bottom box 1 and the upper surface of the bottom plate 6 respectively.

Specifically, a sealing frame 8 is arranged at an opening at the bottom of the bottom box 1, the outer wall of the telescopic cylinder 7 is in sliding fit with the inner wall of the sealing frame 8, the top of the telescopic cylinder 7 extends outwards and horizontally to form a limiting part 9, and the limiting part 9 is positioned right above the sealing frame 8; so set up, utilize seal frame 8 to carry out spacing fixed to spacing portion 9, avoid the top of telescopic cylinder 7 to break away from the inside of end box 1, prevent that bottom plate 6 from breaking away from with end box 1.

Specifically, two ends of the linear guide rail 2 are provided with anti-collision ends 5; through setting up crashproof end 5, avoid active cell 3 to break away from linear guide 2's both ends, simultaneously, as preferred embodiment, crashproof end 5's inboard is provided with elastic material, helps subduing active cell 3's striking.

Specifically, the length of the bottom plate 6 is greater than that of the bottom box 1, and fixing holes 11 are formed in two ends of the bottom plate 6; so set up, make the floor area of bottom plate 6 be greater than the floor area of end box 1, make placing of product more stable, through setting up fixed orifices 11, conveniently fix the product at the target location.

Specifically, a plurality of buffer springs 10 are uniformly distributed in the length direction of the bottom plate 6; so set up, make buffer spring 10 evenly distributed in the below of linear guide 2, make the vibrations homoenergetic that active cell 3 produced in the optional place receive buffer spring 10's subduction, improve the shock attenuation effect of device greatly.

The working principle is as follows:

when using, active cell 3 moves along linear guide 2 under the effect of stator, and active cell 3 can produce vibrations when moving, and vibrations transmit buffer spring 10 department through end box 1, utilizes buffer spring 10's self elasticity, subducts the propagation of vibrations, avoids vibrations to spread all around along bottom plate 6, helps weakening the noise that vibrations produced simultaneously, reduces the influence to the surrounding environment.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A miniature linear motor characterized by: the movable type motor bottom box comprises a strip-shaped bottom box (1), wherein two linear guide rails (2) are arranged on the upper surface of the bottom box (1), the linear guide rails (2) extend along the length direction of the bottom box (1), a stator is arranged between the two linear guide rails (2), a rotor (3) is arranged on each linear guide rail (2) in a sliding mode, and a rotor seat (4) is arranged at the top of each rotor (3);

the bottom box (1) does not have a bottom, a bottom plate (6) is arranged below the bottom box (1), a rectangular telescopic cylinder (7) is arranged on the upper surface of the bottom plate (6), a buffer spring (10) is arranged inside the telescopic cylinder (7), and the top and the bottom of the buffer spring (10) are fixedly connected with the inner top of the bottom box (1) and the upper surface of the bottom plate (6) respectively.

2. A miniature linear motor according to claim 1, wherein: the bottom opening of end box (1) is provided with sealed frame (8), just the outer wall of a flexible section of thick bamboo (7) with the inner wall sliding fit of sealed frame (8).

3. A miniature linear motor according to claim 2, wherein: the top of the telescopic cylinder (7) extends outwards and horizontally to form a limiting part (9), and the limiting part (9) is located right above the sealing frame (8).

4. A miniature linear motor according to claim 1, wherein: and two ends of the linear guide rail (2) are provided with anti-collision ends (5).

5. A miniature linear motor according to claim 1, wherein: the length dimension of the bottom plate (6) is larger than that of the bottom box (1), and fixing holes (11) are formed in two ends of the bottom plate (6).

6. A miniature linear motor according to claim 1, wherein: the buffer springs (10) are uniformly distributed in the length direction of the bottom plate (6).