WO2021218022A1

WO2021218022A1 - Linear motor

Info

Publication number: WO2021218022A1
Application number: PCT/CN2020/118272
Authority: WO
Inventors: 刘元江; 贺子和; 周忠厚; 赵雲峰
Original assignee: 歌尔股份有限公司
Priority date: 2020-04-28
Filing date: 2020-09-28
Publication date: 2021-11-04
Also published as: CN111431372A

Abstract

A linear motor (100), comprising a mounting housing (1), a stator assembly (2) and a mover assembly (3). At least one end of the mounting housing (1) is provided with an opening (1a); the mover assembly (3) is mounted at the end, where the opening (1a) is located, of the mounting housing (1) with a lengthwise direction of the opening (1a) being a longitudinal direction and a widthwise direction being a transverse direction; the mover assembly (3) comprises a mounting end (3a) located in the mounting housing (1); two lateral side portions of the mounting end (3a) are slidably mounted on the mounting housing (1) by means of separate lateral sliding structures; each lateral sliding structure comprises a sliding portion (4) and a fitting portion (5) which are oppositely arranged in the transverse direction and fit with each other; one of the sliding portion (4) and the fitting portion (5) is arranged on a lateral side of the mounting end (3a); the other one is arranged on the mounting housing (1); and the fitting portion (5) and/or the sliding portion (4) are arranged in the longitudinal direction thereof. According to the technical solution, the linear motor (100) can solve the technical problem that the service life of the electric motor is shortened due to the fact that the linear motor in the prior art is unstable in terms of operation when being mounted in a wall-mounted manner.

Description

Linear Motor

Technical field

The invention relates to the technical field of motors, in particular to a linear motor.

Background technique

In the field of industrial automation, linear motors are widely used. The existing linear motors are large in size and mass, and most of them are more suitable for horizontal installation, which will reduce the service life of the motor when mounted on the wall.

Summary of the invention

The main purpose of the present invention is to provide a linear motor that can operate stably during wall-mounted installation, so as to solve the problem of unstable operation of the linear motor in the prior art during wall-mounted installation and reduce the service life of the motor.

In order to achieve the above objective, the present invention proposes a linear motor, which includes:

The housing is installed, at least one end is provided with an opening, the length direction of the opening is taken as the longitudinal direction, and the width direction is taken as the transverse direction;

The stator assembly is installed in the mounting housing; and,

The mover assembly is installed at the end of the opening of the installation housing, the mover assembly includes an installation end located in the installation housing, and both sides of the installation end in the transverse direction are connected to each other through a lateral sliding structure. The mounting housing is slidably installed, the lateral sliding mounting structure includes a sliding part and a mating part that are arranged oppositely and cooperate with each other in the lateral direction, and one of the sliding part and the mating part is provided on the mounting end On the side part, the other part is arranged on the mounting housing, and the mating part and/or the sliding arrangement are arranged along the longitudinal direction, so that the mover assembly is slidably mounted on the mounting housing along the longitudinal direction.

Optionally, the mounting housing includes a bottom wall disposed opposite to the opening, and a mounting block disposed on the inner side of the bottom wall and extending in the longitudinal direction;

The mounting end includes two mounting side portions disposed oppositely in the transverse direction and extending in the longitudinal direction, and a connecting portion connecting the two mounting side portions, and the two mounting side portions define a mounting block adapted to In the installation groove, the inner side surfaces of the two installation side parts and the two outer side surfaces of the installation block are respectively slidably connected by the lateral sliding structure.

Optionally, the matching portion is a sliding groove provided on the inner surface of the mounting side portion, and the sliding groove extends in the longitudinal direction;

The sliding portion is a sliding rail provided on an outer side surface of the mounting block, and the sliding rail extends longitudinally.

Optionally, a mounting protrusion is installed on the inner surface of the mounting side portion, and the sliding groove is provided on the mounting protrusion.

Optionally, the mounting protrusion is detachably mounted on the inner surface of the mounting side part through a screw connection.

Optionally, the slide rail is installed on the outer side of the mounting block.

Optionally, the sliding rail is detachably mounted on the outer side surface of the mounting block through a screw connection.

Optionally, the sliding groove has two opposite sliding walls, the inner side of the sliding wall is convexly provided with a plurality of sliding protrusions extending in the longitudinal direction, and the plurality of sliding protrusions includes an arc-shaped sliding protrusion;

The side surfaces of the sliding rail corresponding to the two sliding walls are sliding side surfaces, and a plurality of sliding grooves are provided on the sliding side surface corresponding to the plurality of sliding protrusions. Curved groove adapted to the shape of the sliding convex.

Optionally, the mounting housing includes two laterally opposed first side covers and second side covers, wherein:

The first side cover includes a first side plate, and a first top fold and a first bottom fold extending from both ends of the first side plate toward the second side cover;

The second side cover includes a second side plate, and a second top fold and a second bottom fold extending from both ends of the second side plate toward the first side cover;

The first bottom folded plate and the second bottom folded plate are spliced to form the bottom wall of the mounting housing, and the first top flange and the second top flange are spaced apart to define the opening.

Optionally, the stator assembly includes a plurality of yoke parts provided on the top of the mounting block.

In the technical solution of the present invention, the lateral sides of the mounting end of the mover assembly are respectively slidably mounted with the mounting housing through a lateral sliding structure, and the lateral sliding mounting structure includes laterally facing each other. A sliding part and a mating part are provided and matched with each other, one of the sliding part and the mating part is provided on the side of the mounting end, the other is provided on the mounting housing, and the mating part and/or The sliding arrangement is arranged along the longitudinal direction, so that the mover assembly is slidably mounted to the mounting housing along the longitudinal direction. In this way, the sliding portion and the mating portion are close to or away from the opening when they are mated. There is a mutual restriction effect in the direction, so that the lateral sliding mounting structure has a mutual restriction effect on the mover assembly in the direction close to or away from the opening, thereby increasing the operation of the mover assembly Stability to improve the service life of linear motors.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on the structure shown in these drawings.

FIG. 1 is a schematic perspective view of a part of the structure of an embodiment of a linear motor provided by the present invention;

Fig. 2 is a perspective schematic view of the linear motor of Fig. 1 after a part of the mounting housing is removed;

FIG. 3 is an enlarged schematic diagram of part A of FIG. 2.

The embodiments provided by the present invention are illustrated with reference numerals:

标号Label	名称 name	标号Label		名称name
100100	直线电机Linear Motor	21twenty one	磁轭部Yoke
11	安装壳体Install the shell	33	动子组件Mover assembly
1a1a	开口 Opening	3a3a	安装端 Mounting side
1b1b	底壁 Bottom wall	3131	安装侧部Install the side
1010	安装块 Installation block	3232	连接部 Connection part
1111	第一侧盖 First side cover	44	滑动部Sliding part
111111	第一侧板 First side board	4a4a	滑槽 Chute
112112	第一顶折边The first top fold	4141	滑壁 Sliding wall
113113	第一底折边The first bottom fold	4242	滑凸Slip convex
1212	第二侧盖 Second side cover	42a42a	弧形滑凸Curved Slip Convex
121121	第二侧板 Second side panel	55	配合部 Coordination Department
122122	第二顶折边Second top fold	5a5a		滑轨Slide
123123	第二底折边 Second bottom hem	5151	滑动沟槽 Sliding groove
22	定子组件 Stator assembly	51a51a	弧形沟槽Arc groove

The realization of the objectives, functional characteristics and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain that it is in a specific posture (as shown in the drawings). If the specific posture changes, the relative positional relationship, movement, etc. of the components below will also change the directional indication accordingly.

In addition, if there are descriptions related to "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and cannot be understood as instructions or implications Its relative importance or implicitly indicates the number of technical features indicated. Therefore, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" in the full text includes three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, scheme B, or schemes that meet both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on what can be achieved by a person of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that such a combination of technical solutions does not exist. , Is not within the protection scope of the present invention.

The present invention provides a linear motor, and FIGS. 1 to 3 are an embodiment of the linear motor provided by the present invention.

1 to 3, the linear motor 100 includes a mounting housing 1, a stator assembly 2 and a mover assembly 3, wherein at least one end of the mounting housing 1 is provided with an opening 1a, and the length of the opening 1a The direction is the longitudinal direction and the width direction is the transverse direction. The stator assembly 2 is installed in the mounting housing 1, and the mover assembly 3 is installed at the end of the mounting housing 1 where the opening 1a is located. 3 includes a mounting end 3a located in the mounting housing 1. The lateral sides of the mounting end 3a are slidably mounted with the mounting housing 1 through a lateral sliding structure. The lateral sliding mounting structure It includes a sliding part 4 and a mating part 5 which are arranged oppositely and cooperate with each other in the lateral direction. One of the sliding part 4 and the mating part 5 is arranged on the side of the mounting end 3a, and the other is arranged on the The housing 1 is installed, and the mating portion 5 and/or the sliding arrangement are arranged along the longitudinal direction, so that the mover assembly 3 is slidably installed on the mounting housing 1 in the longitudinal direction.

In the prior art, a sliding mounting structure is provided between the bottom of the moving subassembly 3 and the bottom of the mounting base. Specifically, a protrusion is provided at the bottom of the moving subassembly 3, and a sliding groove is provided at the bottom of the mounting base. Obviously, the sliding groove and the convex block have no restriction on the opening direction of the mounting seat. Therefore, when the linear motor is wall-mounted, the sliding mounting structure is close to or far from the opening. The moving subassembly 3 is not limited in the direction, which will affect the stability of the movement of the moving subassembly 3.

In the technical solution of the present invention, the lateral sides of the mounting end 3a of the mover assembly 3 are slidably mounted with the mounting housing 1 through a lateral sliding structure, and the lateral sliding mounting structure includes a lateral sliding structure. The upper part is a sliding part 4 and a mating part 5 which are arranged oppositely and cooperate with each other. One of the sliding part 4 and the mating part 5 is arranged on the side of the mounting end 3a, and the other is arranged on the mounting housing 1, and the mating portion 5 and/or the sliding arrangement are arranged along the longitudinal direction, so that the mover assembly 3 is slidably mounted to the mounting housing 1 along the longitudinal direction. In this way, the sliding portion 4 and the When the mating portion 5 is mated, it has a mutual restriction effect in the direction approaching or away from the opening 1a, so that the lateral sliding mounting structure is close to or away from the opening 1a to the moving subassembly 3 The limited position further increases the stability of the operation of the mover assembly 3, so as to increase the service life of the linear motor 100.

In the present invention, there are many cases in the embodiment of "the two sides of the mounting end 3a in the lateral direction are slidably mounted with the mounting housing 1 through a lateral sliding structure": for example, the mounting end 3a The two outer sides are slidingly connected with the mounting housing 1 by a lateral sliding structure. Specifically, the mounting housing 1 includes two lateral side walls located in the lateral direction, and the two outer sides of the mounting end 3a The side surface is slidingly connected with the inner surface of the two side walls by adopting a lateral sliding structure. In this embodiment, the mounting housing 1 includes a bottom wall 1b disposed opposite to the opening 1a, and a mounting block 10 disposed on the inner side of the bottom wall 1b and extending in the longitudinal direction. The mounting end 3a It includes two mounting side portions 31 arranged oppositely in the transverse direction and extending in the longitudinal direction, and a connecting portion 32 connecting the two mounting side portions 31. The two mounting side portions 31 define a fit for the mounting block 10 The inner surface of the two installation side parts 31 and the two outer surfaces of the installation block 10 are respectively slidably connected by the lateral sliding structure. In this way, by using an entity such as the mounting block 10 as the sliding mounting carrier of the mover assembly 3, the strength is greater, and the corresponding mounting stability is higher. Obviously, the present design is not limited to this, as long as it can be realized that "the two sides of the mounting end 3a in the lateral direction are slidably mounted with the mounting housing 1 through a lateral sliding structure" are within the protection scope of the present invention.

In this embodiment, the mating portion 5 is a sliding groove 4a provided on the inner surface of the mounting side portion 31, the sliding groove 4a extends in the longitudinal direction, and the sliding portion 4 is provided on the mounting block 10. The slide rail 5a on an outer side of the slide rail 5a extends in the longitudinal direction. Obviously, the design is not limited to this. The specific implementation of the mating portion 5 and the slide portion 4 is not limited to the above manner, and may be a slide groove 4a And protrusions, but also guide posts and chutes 4a.

Further optionally, in this embodiment, the inner side of the mounting side portion 31 is installed (including detachable and non-detachable) with a mounting protrusion 6, and the sliding groove 4a is provided on the mounting protrusion 6. superior. In this way, the mounting side portion 31 and the mounting protrusion 6 provided with the sliding groove 4a are arranged separately, so that the materials of the mounting protrusion 6 and the mounting side portion 31 can be set to different materials, wherein , The mounting protrusion 6 is made of wear-resistant material. Further, in this embodiment, the mounting protrusion 6 is detachably mounted on the inner surface of the mounting side portion 31 through a screw connection, so that the mounting block 10 can be maintained and updated.

Further optionally, in this embodiment, the sliding rail 5a is installed (including detachable installation and non-removable installation) on the outer side of the mounting block 10, so that the sliding rail 5a can be connected to the mounting block 10 The material of 10 is set to different materials, wherein the sliding rail 5a is set to a wear-resistant material. Further, in this embodiment, the slide rail 5a is detachably installed on the outer side of the mounting block 10 through a screw connection, so that the slide rail 5a can be maintained and updated.

Optionally, in this embodiment, the sliding groove 4a has two opposite sliding walls 41, and the inner side of the sliding wall 41 is convexly provided with a plurality of sliding protrusions 42 extending in the longitudinal direction. The sliding protrusion 42 includes an arc-shaped sliding protrusion 42a, the side surface of the sliding rail 5a corresponding to the two sliding walls 41 is a sliding side surface, and a plurality of sliding grooves are provided on the sliding side surface corresponding to the plurality of sliding protrusions 42 Slot 51, the plurality of sliding grooves 51 include arc-shaped grooves 51a that are adapted to the arc-shaped sliding protrusions 42a. By providing a plurality of sliding protrusions 42 and a plurality of sliding grooves 51, the sliding grooves can be improved The stability of the fit between 4a and the slide rail 5a.

The specific structure of the mounting housing 1 is not limited, and it may be an integrated housing or a separate installation. In this embodiment, the mounting housing 1 includes two first sides arranged opposite to each other in the transverse direction. The cover 11 and the second side cover 12, wherein the first side cover 11 includes a first side plate 111 and a first top extending from both ends of the first side plate 111 toward the second side cover 12. The hem 112 and the first bottom hem 113. The second side cover 12 includes a second side plate 121, and a second top fold 122 and a second bottom fold 123 extending from both ends of the second side plate 121 toward the first side cover 11; The first bottom folded plate and the second bottom folded plate are spliced to form the bottom wall of the mounting housing 1, and the first top flange 112 and the second top flange 122 are spaced apart to define a述口1a。 Said opening 1a. In this way, the main shell part of the mounting housing 1 is formed by the splicing of the first side cover 11 plate and the second side cover 12 plate, so that the manufacturing difficulty of the mounting housing 1 can be simplified.

In this embodiment, the stator assembly 2 includes a plurality of yoke parts 21 provided on the top of the mounting block 10.

The above descriptions are only the preferred embodiments of the present invention, and do not limit the scope of the present invention. Under the inventive concept of the present invention, equivalent structural transformations made by using the contents of the description and drawings of the present invention, or direct/indirect use Other related technical fields are included in the scope of patent protection of the present invention.

Claims

A linear motor is characterized in that it comprises:

The housing is installed, at least one end is provided with an opening, the length direction of the opening is taken as the longitudinal direction, and the width direction is taken as the transverse direction;

The stator assembly is installed in the mounting housing; and,

The mover assembly is installed at the end of the opening of the installation housing, the mover assembly includes an installation end located in the installation housing, and both sides of the installation end in the transverse direction are connected to each other through a lateral sliding structure. The mounting housing is slidably installed, the lateral sliding mounting structure includes a sliding part and a mating part that are arranged oppositely and cooperate with each other in the lateral direction, and one of the sliding part and the mating part is provided on the mounting end On the side part, the other part is arranged on the mounting housing, and the mating part and/or the sliding arrangement are arranged along the longitudinal direction, so that the mover assembly is slidably mounted on the mounting housing along the longitudinal direction.
The linear motor of claim 1, wherein the mounting housing comprises a bottom wall disposed opposite to the opening, and a mounting block disposed on the inner side of the bottom wall and extending in the longitudinal direction;

The mounting end includes two mounting side portions disposed oppositely in the transverse direction and extending in the longitudinal direction, and a connecting portion connecting the two mounting side portions, and the two mounting side portions define a mounting block adapted to In the installation groove, the inner side surfaces of the two installation side parts and the two outer side surfaces of the installation block are respectively slidably connected by the lateral sliding structure.
The linear motor of claim 2, wherein the matching portion is a sliding groove provided on the inner surface of the mounting side portion, and the sliding groove extends in the longitudinal direction;

The sliding portion is a sliding rail provided on an outer side surface of the mounting block, and the sliding rail extends longitudinally.
The linear motor according to claim 3, wherein a mounting protrusion is installed on the inner surface of the mounting side portion, and the sliding groove is provided on the mounting protrusion.
The linear motor according to claim 4, wherein the mounting protrusion is detachably mounted on the inner surface of the mounting side part through a screw connection.
The linear motor of claim 3, wherein the sliding rail is installed on the outer side of the mounting block.
7. The linear motor of claim 6, wherein the sliding rail is detachably mounted on the outer side surface of the mounting block through a screw connection.
The linear motor according to claim 3, wherein the sliding groove has two opposite sliding walls, and the inner side of the sliding wall is convexly provided with a plurality of sliding protrusions extending in the longitudinal direction, and the plurality The sliding convex includes an arc-shaped sliding convex;

The side surfaces of the sliding rail corresponding to the two sliding walls are sliding side surfaces, and a plurality of sliding grooves are provided on the sliding side surface corresponding to the plurality of sliding protrusions. Curved groove adapted to the shape of the sliding convex.
The linear motor according to claim 1 or 2, characterized in that, the mounting housing comprises two first side covers and a second side cover arranged opposite to each other in a transverse direction, wherein,

The first side cover includes a first side plate, and a first top fold and a first bottom fold extending from both ends of the first side plate toward the second side cover;

The second side cover includes a second side plate, and a second top fold and a second bottom fold extending from both ends of the second side plate toward the first side cover;

The first bottom folded plate and the second bottom folded plate are spliced to form the bottom wall of the mounting housing, and the first top flange and the second top flange are spaced apart to define the opening.
3. The linear motor of claim 2, wherein the stator assembly includes a plurality of yoke portions provided on the top of the mounting block.