CN210669852U

CN210669852U - Linear motor

Info

Publication number: CN210669852U
Application number: CN201921709690.2U
Authority: CN
Inventors: 郭志焱; 李军; 兰德福
Original assignee: Zhejiang Baolong Mechanical And Electrical Co Ltd
Current assignee: Zhejiang Baolong Mechanical And Electrical Co Ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-06-02
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a linear electric motor, including base and housing, the housing cover is established on the base, be provided with the output shaft along endwise slip in the housing, the housing setting is worn out to the output shaft, still be provided with the magnetic conduction spare along the axial on the base, it has the coil to wind on the magnetic conduction spare, be provided with the guiding hole along the axial on the magnetic conduction spare terminal surface, be provided with the support frame in the housing, the output shaft is worn to establish on the support frame, the cover is equipped with permanent magnet and balancing weight on the output shaft, the permanent magnet extends to be formed with the direction arch in the guiding hole, the direction arch slides the cooperation with the guiding hole and forms the direction that the output shaft slided, it is equipped with the wind spring still to overlap on the output shaft, the outer. The structure is simple, so that the axial output of the linear motor is more stable, and the noise is lower.

Description

Linear motor

Technical Field

The utility model belongs to the technical field of the motor technique and specifically relates to a linear electric motor.

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 rotary motor can be seen as being formed by cutting a rotary motor in the radial direction and expanding the rotary motor into a plane. With the development of the technology and the increase of social demands, the output shaft of the linear motor is required to do work axially, and in order to realize axial reciprocating motion, a gear or rack structure is generally adopted in the prior art to convert the rotation output work into axial motion.

SUMMERY OF THE UTILITY MODEL

The utility model provides a linear electric motor, its simple structure for linear electric motor axial output is more stable, has less noise simultaneously.

The utility model provides a linear electric motor, including base and housing, the housing cover is established on the base, be provided with the output shaft along endwise slip in the housing, the housing setting is worn out to the output shaft, still be provided with magnetic conduction spare along the axial on the base, it has the coil to wind on the magnetic conduction spare, be provided with the guiding hole along the axial on the magnetic conduction spare terminal surface, be provided with the support frame in the housing, the output shaft is worn to establish on the support frame, the cover is equipped with permanent magnet and balancing weight on the output shaft, the permanent magnet extends to be formed with the direction arch in the guiding hole, the direction arch slides the cooperation with the guiding hole and forms the direction that the output shaft slided, it is equipped with the wind spring still to overlap on the output shaft, the outer.

The beneficial effect who so sets up is: adopt above-mentioned scheme, the coil is under the effect of alternating current, coil here is certainly to be connected with the circuit board on housing or the base, thereby realize control, belong to prior art, do not do much to describe here, the magnetizer makes its magnetic pole change along with alternating current changes, thereby produce attraction or repulsion force to the permanent magnet, drive output shaft slides in the housing, make output shaft along casing axial slip, further set up the coil spring on the output shaft, make output shaft reciprocating motion more stable, and because magnetic pole transform, the output shaft is at the in-process that slides, the condition of deflecting appears easily, can provide certain rotation space through the coil spring, help the pivoted to reset simultaneously, improve the stability of output shaft motion, and the result of use of product.

The utility model discloses further set up as the guiding hole is the toper setting, protruding shape of direction and guiding hole looks adaptation.

The beneficial effect who so sets up is: by adopting the scheme, the magnetic conductive part is more convenient to assemble, has better magnetic gathering effect and larger attractive repulsive force, has a simple structure and is beneficial to realization.

The utility model discloses further set up to be provided with the constant head tank on the base, magnetic conduction spare and coil all set up in the constant head tank, the interval sets up and is formed with the guide way between constant head tank periphery wall and the housing, the permanent magnet has the direction flange to extending in the guide way, the direction flange slides the cooperation with the guide way and forms the direction that the output shaft slided.

The beneficial effect who so sets up is: adopt above-mentioned scheme, set up like this for the installation of coil and magnetic conduction spare is more accurate, and simple structure further sets up the guide way simultaneously, can be better lead to sliding of output shaft, and overall stability is higher.

The utility model discloses further set up as the coil spring is two and sets up respectively in the both sides of support frame.

The beneficial effect who so sets up is: by adopting the scheme, the structure is more stable, the use stability of the whole structure is ensured, and the service life is prolonged.

The utility model discloses further set up as the coil spring is flat spiral spring or awl section spiral spring.

The beneficial effect who so sets up is: by adopting the scheme, the plane volute spiral spring or the cone-truncated volute spiral spring is adopted, so that the radial deflection force can be better borne, the structure is more stable, and the installation and the use are convenient.

The utility model discloses further set up to be provided with coil skeleton between coil and the magnetic conduction piece, the coil is around the package on coil skeleton.

The beneficial effect who so sets up is: by adopting the scheme, the coil framework is arranged, so that the coil wrapping combination is better, the abrasion to the magnetic conduction piece is reduced, and the service life is prolonged.

Drawings

Fig. 1 is a schematic sectional structure diagram of an embodiment of the present invention;

fig. 2 is an exploded view of an embodiment of the present invention.

Detailed Description

Fig. 1 and 2 disclose a linear motor, which comprises a base 1 and a cover 2, wherein the cover 2 is covered on the base 1, an output shaft 3 is arranged in the housing 2 in an axial sliding manner, the output shaft 3 penetrates out of the housing 2, a magnetic conduction piece 6 is also arranged on the base 1 along the axial direction, a coil 7 is wound on the magnetic conduction piece 6, a guide hole is axially arranged on the end surface of the magnetic conducting piece 6, a support frame 21 is arranged in the housing 2, the output shaft 3 is arranged on the support frame 21 in a penetrating way, the output shaft 3 is sleeved with a permanent magnet 4 and a balancing weight 31, the permanent magnet 4 extends into the guide hole to form a guide bulge 41, the guide bulge 41 is matched with the guide hole in a sliding way to form the guide for the sliding of the output shaft 3, the output shaft 3 is also sleeved with a coil spring 5, and the peripheral surface of the coil spring 5 is fixedly arranged in the housing 2. The beneficial effect who so sets up is: adopt above-mentioned scheme, coil 7 is under the effect of alternating current, coil 7 here is certainly to be connected with circuit board on housing 2 or the base 1, thereby realize control, belong to prior art, do not do much to describe herein, the magnetizer makes its magnetic pole change along with alternating current change, thereby produce attraction or repulsion force to permanent magnet 4, drive output shaft 3 slides in housing 2, make output shaft 3 along casing axial slip, further set up wind spring 5 on output shaft 3, make output shaft 3 reciprocating motion more stable, and because the magnetic pole transform effect, output shaft 3 is in the in-process that slides, the condition of deflecting appears easily, can provide certain rotation space through wind spring 5, help the pivoted to reset simultaneously, improve the stability of output shaft 3 motion, and the result of use of product.

The guide hole is formed in a tapered shape, and the shape of the guide protrusion 41 is adapted to the shape of the guide hole. The beneficial effect who so sets up is: by adopting the scheme, the magnetic conductive part 6 is more convenient to assemble, better in magnetic gathering effect, larger in attractive repulsive force, simple in structure and beneficial to implementation.

Be provided with the constant head tank on above-mentioned base 1, magnetic conduction piece 6 and coil 7 all set up in the constant head tank, the interval sets up between constant head tank periphery wall and the housing 2 and is formed with guide way 62, permanent magnet 4 has guide flange 42 to extending in the guide way 62, guide flange 42 slides the cooperation with guide way 62 and forms the direction that slides to output shaft 3. The beneficial effect who so sets up is: adopt above-mentioned scheme, set up like this for coil 7 is more accurate with the installation of magnetic conduction piece 6, and simple structure further sets up guide way 62 simultaneously, can be better to the output shaft 3 slide lead, and overall stability is higher.

The coil springs 5 are two and are respectively disposed at both sides of the support frame 21. The beneficial effect who so sets up is: by adopting the scheme, the structure is more stable, the use stability of the whole structure is ensured, and the service life is prolonged.

The coil spring 5 is a flat spiral spring. The beneficial effect who so sets up is: by adopting the scheme and the plane volute spiral spring, the radial deflection force can be better borne, the structure is more stable, and the installation and the use are convenient.

A coil framework 61 is arranged between the coil 7 and the magnetic conduction piece 6, and the coil 7 is wrapped on the coil framework 61. The beneficial effect who so sets up is: adopt above-mentioned scheme, set up coil skeleton 61 for the associativity of coil 7 around the package is better, reduces the wearing and tearing to magnetic conduction piece 6, increase of service life.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that the equivalent changes made in the claims of the present invention, such as equivalent products with similar processes and similar structures, are also included in the scope of the present invention.

Claims

1. The utility model provides a linear electric motor, includes base and housing, the housing cover is established on the base, it is provided with the output shaft to follow endwise slip in the housing, the housing setting is worn out to the output shaft, its characterized in that: still be provided with the magnetic conduction spare along the axial on the base, the last coil that has wrapped of magnetic conduction spare, be provided with the guiding hole along the axial on the magnetic conduction spare terminal surface, be provided with the support frame in the housing, the output shaft wears to establish on the support frame, the cover is equipped with permanent magnet and balancing weight on the output shaft, the permanent magnet extends to be formed with the direction arch in the guiding hole, the direction arch slides the cooperation with the guiding hole and forms the direction that slides to the output shaft, still the cover is equipped with the wind spring on the output shaft, the fixed setting in the housing of outer peripheral face of wind spring.

2. A linear motor according to claim 1, wherein: the guide hole is arranged in a conical shape, and the shape of the guide bulge is matched with that of the guide hole.

3. A linear motor according to claim 1, wherein: be provided with the constant head tank on the base, magnetic conduction spare and coil all set up in the constant head tank, the interval sets up between constant head tank periphery wall and the housing and is formed with the guide way, the permanent magnet has the direction flange to extending in the guide way, the direction flange slides the cooperation with the guide way and forms the direction that slides to the output shaft.

4. A linear motor according to claim 1 or 2, characterized in that: the two coil springs are respectively arranged on two sides of the support frame.

5. A linear motor according to claim 1, wherein: the coil spring is a plane spiral spring or a cone-truncated spiral spring.

6. A linear motor according to claim 1, wherein: and a coil framework is arranged between the coil and the magnetic conduction piece, and the coil is wrapped on the coil framework.