CN217656544U

CN217656544U - Linear motor

Info

Publication number: CN217656544U
Application number: CN202221678540.1U
Authority: CN
Inventors: 邓澍; 邓益彪
Original assignee: Shenzhen Enke Electric Technology Co ltd
Current assignee: Shenzhen Enke Electric Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-10-25
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a linear motor, belong to little special motor technical field, including bottom casing and pilot hole, the pilot hole has been laid to the axial on the bottom casing, the guide hole has been laid to top cover casing one side, the assembly groove has been laid to the last axial of top cover casing, the retaining washer has been laid between bottom casing and top cover casing, the retaining washer both sides are laid to the iron core, and assemble in the bottom casing, between top cover casing and retaining washer, arrange the bobbin between the iron core yoke, coil on the bobbin, the bolt passes the top cap, the bottom, retaining washer, it is whole with the fixed motor that becomes of each subassembly with the nut cooperation behind the through-hole on the iron core, the guide arm is fixed to be assembled between bottom casing and top cover casing, the active cell support assembles the linear slip on the guide arm, from the top cap behind the active cell support embedding magnetic substance, the transfer line is stretched out to the bottom centre bore, this linear motor structure is inseparable, convenient assembling, each part makes things convenient for use, the control of assembly precision, can effective reduce cost, effectively promote motor efficiency after promoting motor stability, and the motor is convenient for developing multiple function product, and wide use, great and social value have.

Description

Linear motor

Technical Field

The utility model belongs to the technical field of little special motor, specifically relate to a linear motor.

Background

Linear motors, also known as linear motors, linear motors and push rod motors, have steadily grown in practical industrial applications, the most common types of linear motors being flat and U-slot types as well as tubular types. At present, linear motors on the market are large in size, mainly used in industrial control, high in price, inconvenient to install and use under narrow working conditions and incapable of being popularized and used for civil use.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a purpose provides a linear motor to solve the problem among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a linear motor comprises a bottom cover assembly, wherein the bottom cover assembly comprises a bottom cover shell and assembling holes, and the assembling holes are circumferentially distributed in the bottom cover shell;

the top cover assembly comprises a top cover shell, a guide hole and an assembly groove, wherein the guide hole is formed in one end of the top cover shell, and the assembly groove is axially formed in the top cover shell;

the stator assembly comprises a fixed washer, a bobbin between an iron core and an iron core tooth yoke and a coil, wherein the fixed washer is arranged between the bottom cover shell and the top cover shell, and the iron core is arranged on two sides of the fixed washer and assembled among the bottom cover shell, the top cover shell and the fixed washer;

the bolt assembly is arranged between the bottom cover assembly and the top cover assembly and is used for assembling and connecting the bottom cover shell, the top cover shell, the fixing washer and the iron core;

the rotor assembly comprises a rotor support, a transmission rod and a guide rod, the guide rod is fixedly assembled between the bottom cover shell and the top cover shell, the rotor support is assembled on the guide rod to slide linearly, and the transmission rod extends out of the center holes of the top cover and the bottom cover after the rotor support is embedded into a magnetic body.

As a further aspect of the present invention, the assembly holes and the assembly grooves are matched with the bolt assembly.

As a further aspect of the present invention, the bottom cap assembly further includes a first electrode plate, the top cap housing further includes a second electrode plate, the first electrode plate and the second electrode plate are electrically connected to the coil wire near one side thereof respectively.

As a further scheme of the utility model, the equipartition is equipped with the mounting hole on retaining washer and the iron core, the mounting hole matches the setting with pilot hole and assembly groove for positioning assembly bottom casing, top cap casing, retaining washer and iron core.

As a further aspect of the present invention, the magnetic body is embedded in the surface of the mover holder, and the magnetic body is disposed to correspond to the iron core teeth.

To sum up, compared with the prior art, the embodiment of the utility model has following beneficial effect:

the linear motor has the advantages of compact structure, convenient assembly, convenient control of machining and assembly precision of each part, effective reduction of cost, effective improvement of motor efficiency after the motor stability is improved, wide application and higher economic and social values.

Drawings

Fig. 1 is a schematic perspective view of a linear motor provided in an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a stator assembly in a linear motor according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a back side of the linear motor according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a mover assembly in a linear motor according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a bolt assembly in a linear motor according to an embodiment of the present invention.

Fig. 6 is a schematic front structural diagram of a mover assembly in a linear motor according to an embodiment of the present invention.

Fig. 7 is a schematic perspective view of a mover assembly in a linear motor according to an embodiment of the present invention.

Reference numerals are as follows: 1-bottom cover component, 101-bottom cover shell, 102-assembly hole, 103-first electrode plate, 2-top cover component, 201-top cover shell, 202-guide hole, 203-assembly groove, 204-second electrode plate, 3-stator component, 301-fixing washer, 302-iron core, 303-mounting hole, 4-bolt component, 401-bolt, 402-nut, 5-rotor component, 501-rotor bracket, 502-transmission rod, 503-guide rod, 504-magnetic body and 6-winding frame.

Detailed Description

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 7, the linear motor in an embodiment of the present invention includes a bottom cover assembly 1, where the bottom cover assembly 1 includes a bottom cover shell 101 and assembly holes 102, and the assembly holes 102 are circumferentially distributed on the bottom cover shell 101; the top cover assembly 2 comprises a top cover shell 201, a guide hole 202 and an assembling groove 203, wherein the guide hole 202 is distributed at one end of the top cover shell 201, and the assembling groove 203 is also distributed on the top cover shell 201 in the circumferential direction; the assembly hole 102 and the assembly groove 203 are matched with the bolt assembly 4; the stator assembly 3 comprises a fixing washer 301 and an iron core 302, the fixing washer 301 is arranged between the bottom cover shell 101 and the top cover shell 201, and the iron core 302 is arranged on two sides of the fixing washer 301 and assembled among the bottom cover shell 101, the top cover shell 201 and the fixing washer 301; the bolt assembly 4 is arranged between the bottom cover assembly 1 and the top cover assembly 2 and is used for assembling and connecting the bottom cover shell 101, the top cover shell 201, the fixing washer 301 and the iron core 302, and the assembling hole 102 and the assembling groove 203 are matched with the bolt assembly 4; the mover assembly 5 comprises a mover support 501, a transmission rod 502 and a guide rod 503, the guide rod 503 is fixedly assembled between the bottom cover shell 101 and the top cover shell 201, the mover support 501 is slidably assembled on the guide rod 503, the transmission rod 502 is further assembled at one end of the mover support 501, and the tail end of the transmission rod 502 is slidably assembled in the guide hole 202; and a bobbin 6, said bobbin 6 being circumferentially arranged inside the core 302; the rotor holder 501 has a magnetic body 504 circumferentially mounted on a surface thereof, and the magnetic body 504 is provided in a number corresponding to the number of the bobbins 6.

In practical application, the linear motor comprises a stator assembly 3, a rotor assembly 5, a winding frame 6, a bottom cover assembly 1 and a top cover assembly 2, wherein the rotor support 501 is axially symmetrically provided with holes, linear bearings can be tightly fitted in the holes as required to reduce friction, guide rods 503 penetrate through the holes of the rotor support 501 and are fixed on the motor covers at two ends, the rotor support 501 smoothly and linearly slides back and forth along the guide rods 503, the linear motor further comprises two motor covers at two ends of the motor and fixing washers 301 arranged between two layers of iron cores, the guide rods 503 are fixed at the inner side of the motor covers in a settling hole position, bolts 401 penetrate through the holes at the edges of the bottom cover shell 101 and the top cover shell 201, the fixing washers 301 are symmetrically provided with holes, the bolts penetrate through the fixing washers 301 and the mounting holes 303 on the iron cores 302 after being inserted from one end of the motor covers and extend out from the other end of the motor covers, and the nuts are firmly fixed on the outer sides of the motor covers, and then the motor is assembled into a complete motor.

When the first electrode plate 103 and the second electrode plate 204 at the two ends of the bottom cover shell 101 and the top cover shell 201 are in a power-on state, the mover support 501 slides on the guide rod 503 in a reciprocating manner under the action of magnetic pole force, and drives the transmission rod 502 at one end of the mover support 501 to reciprocate in the guide hole 202, so that the continuous motion of the linear motor is realized.

In a condition in this embodiment, stator core uses the continuous punching press of silicon steel sheet to become square or circular, outside yoke portion trompil does benefit to the bolt and passes fixed motor, inboard tooth portion corresponds the magnetic body side, when unable letting the winding tool pass normal winding because of the limited tooth portion interval that corresponds in micro motor space, can fall into winding core and the punching press of magnetic conduction iron core with stator core, winding core moulds plastics winding frame back wire, or detain winding core after the line has been wound on the winding frame, pass the bolt symmetry behind the winding core wire and fix on the bolt, form complete magnetic circuit between winding core card income winding core with magnetic conduction iron core again, avoid the iron core magnetic leakage to reduce motor efficiency.

As shown in fig. 1 and 2, in a preferred embodiment of the present invention, the bottom cover assembly 1 further includes a first electrode plate 103, the top cover casing 201 further includes a second electrode plate 204, and the first electrode plate 103 and the second electrode plate 204 are electrically connected to the coil wires on the bobbin 6 near one side thereof, respectively.

In practical application, the first electrode plate 103 is embedded inside the bottom cover shell 101, two ends of the first electrode plate 103 are exposed from the inside of the bottom cover shell 101 to connect with the coil by welding the coil terminal, the top cover shell 201 is embedded inside the second electrode plate 204 at the other end, the inside of the top cover shell 201 is exposed to the outside, the coil terminal is welded by the inside terminal, and the outside terminal is welded with the external power supply.

As shown in fig. 2, in a preferred embodiment of the present invention, mounting holes 303 are uniformly distributed on the fixing washer 301 and the iron core 302, and the mounting holes 303 are matched with the mounting holes 102 and the mounting slots 203 for positioning and assembling the bottom cover shell 101, the top cover shell 201, the fixing washer 301 and the iron core 302.

In practical applications, the fixing washer 304 is used for defining the position of the mounting hole between the fixing washer 301 and the iron core 302 and the bolt 401, and is matched with the assembly hole 102 and the assembly groove 203, so that the fixing washer 301 and the iron core 302 are stably assembled between the bottom cover shell 101 and the top cover shell 201.

In the description of the present invention, it is to be understood that the terms "upper", "one side", "inside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplicity of description, but do not indicate or imply that the linear motor or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and it is to be noted that unless otherwise specifically stated or limited, the terms "set", "mounted", "connected", and "connected" are to be interpreted broadly, for example, as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the term "connected" refers to a connection between two elements or an interaction between two elements, and unless otherwise specifically defined, the term is used in the present invention to refer to the specific meaning of the term in the present invention.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A linear motor, characterized in that the linear motor comprises:

the bottom cover assembly comprises a bottom cover shell and assembly holes, and the assembly holes are axially distributed in the bottom cover shell;

the top cover assembly comprises a top cover shell, a guide hole and an assembly groove, wherein the guide hole is distributed at one end of the top cover shell, and the assembly groove is also distributed on the top cover shell in the circumferential direction;

the stator assembly comprises a fixed washer, a bobbin between an iron core and an iron core tooth yoke and a coil, wherein the fixed washer is arranged between the bottom cover shell and the top cover shell, and the bobbin and the coil between the iron core and the iron core tooth yoke are arranged on two sides of the fixed washer and assembled among the bottom cover shell, the top cover shell and the fixed washer;

the bolt assembly is arranged between the bottom cover assembly and the top cover assembly and is used for assembling and connecting the bottom cover shell, the top cover shell, the fixing washer, the iron core and the bobbin and the coil between the iron core tooth yokes;

the rotor assembly comprises a rotor support, a magnetic body, a transmission rod and a guide rod, the guide rod is fixedly assembled between the bottom cover shell and the top cover shell, the rotor support is assembled on the guide rod to slide linearly, and the transmission rod extends out of the center holes of the top cover and the bottom cover after the rotor support is embedded into the magnetic body.

2. A linear motor according to claim 1, wherein the fitting holes and the fitting grooves are provided to match with the bolt assembly.

3. A linear motor according to claim 1, wherein the bottom cover assembly further comprises a first electrode plate, the top cover housing further comprises a second electrode plate, and the first electrode plate and the second electrode plate are electrically connected to the coil leads adjacent to one side thereof, respectively.

4. The linear motor of claim 1, wherein the fixing washer and the iron core are uniformly provided with mounting holes, and the mounting holes are matched with the assembly holes and the assembly grooves and used for positioning and assembling the bottom cover shell, the top cover shell, the fixing washer and the iron core.

5. The linear motor of claim 1, wherein a magnetic body is embedded in a surface of the mover holder, and the magnetic body is correspondingly matched with the core teeth.