CN208508761U - A kind of linear motor - Google Patents
A kind of linear motor Download PDFInfo
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- CN208508761U CN208508761U CN201820929108.2U CN201820929108U CN208508761U CN 208508761 U CN208508761 U CN 208508761U CN 201820929108 U CN201820929108 U CN 201820929108U CN 208508761 U CN208508761 U CN 208508761U
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- grating scale
- reading head
- slide unit
- fixed
- linear motor
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Abstract
The utility model discloses a kind of linear motors, including the electric mover and motor stator to move along a straight line that cooperate, motor stator is fixed on the base, electric mover is fixed on slide unit, reading head is provided on pedestal, grating scale is provided on slide unit, reading head is configurable for reading the scale on grating scale, to position to slide unit.In the present invention, the installation site of reading head and grating scale is exchanged, keeps reading head fixed, the cable of reading head can be avoided that the case where reading head causes cable contact bad and fracture because repeating bending without relative motion.
Description
Technical field
The utility model relates to technical field of motors, in particular to a kind of linear motor.
Background technique
In industrial automation, short stroke linear motor is very widely used.However, for existing short stroke
Linear motor, grating scale are mounted on pedestal and fixed, and reading head is mounted in motor slide unit, can be with motor
Slide unit moves together, and this mode will lead to two problems: (1) reading head cable can generate high frequency motion with reading head, read
Several cables are bent repeatedly, and reading head cable is caused phenomena such as poor contact, fracture easily occur, are eventually led to motor operation and are stablized
Property decline, or even shorten motor service life；(2) reading head has cable, needs to carry out drag chain wiring, can occupy a large amount of sky
Between.Therefore, it is highly desirable to develop new structure of the linear motion actuator.
Utility model content
The purpose of this utility model is to provide a kind of new solutions of linear motor.
One aspect according to the present utility model provides a kind of linear motor, including cooperates and move along a straight line
Electric mover and motor stator, the motor stator is fixed on the base, and the electric mover is fixed on slide unit, described
It is provided with reading head on pedestal, grating scale is provided on the slide unit, the reading head is configurable for reading the light
Scale on grid ruler, to be positioned to the slide unit.
Optionally, grating scale is equipped with by grating scale fixed frame on the outer wall of the slide unit；The grating scale fixed frame
Lower part extended to together with grating scale on the lateral wall of the pedestal.
Optionally, it is provided with motor stator in the pedestal, passes through reading head frame peace on the lateral wall of the pedestal
Equipped with reading head, the reading head faces the grating scale.
Optionally, downwardly convex interconnecting piece is provided in the middle part of the bottom surface of the slide unit, the interconnecting piece connects motor
Son, the part on the bottom surface of the slide unit positioned at interconnecting piece two sides respectively connect a sliding block, and each slider frame is set to a cunning
On rail, two sliding rails are both secured on the pedestal.
Optionally, the pedestal includes: bottom and the side wall that is set on the side of bottom two opposite sides；Wherein, described in two
One step fixed frame is respectively set on the inner wall of side wall, and each step fixed frame includes First set up and down
Rank and second step；Two sliding rails are individually fixed on two second steps, and the side of the first step for pair
The sliding rail positioning, the electric mover are located in the space between two second steps；The motor stator is set to described
On bottom, and it is located at the lower section of the electric mover, the electric mover and the motor stator interact by described
Two slider-actuated slide units move in a straight line.
Optionally, the grating scale fixed frame includes: that interconnecting piece is fixed with the grating scale for being fixed in the interconnecting piece lower part
Portion；The outer wall of the slide unit is connect with the interconnecting piece, and the grating scale is fixed on the grating scale fixed part.
Optionally, the outer wall of the slide unit is connected by screw to the interconnecting piece.
Optionally, the interconnecting piece is in the U-shaped structure to stand upside down.
Optionally, the reading head frame is connect by screw with pedestal.
Optionally, the reading head frame is of an L-shaped structure.
Linear motor provided by the utility model, using reading head fix and grating scale movement by the way of.Due to reading head
Fixed, the cable of reading head effectively can avoid cable from causing cable contact bad because bending repeatedly without high frequency motion
The case where with fracture.Also, reading head cable is not necessarily to away drag chain wiring, very saving space.
Linear motor provided by the utility model has the advantages that the stability and long service life of operation, is applicable in very much
Under linear motor the movement travel very short and small environment of installation space.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described.It should be appreciated that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as.For those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 shows the structural schematic diagram of linear motor provided by the embodiment of the utility model.
Fig. 2 shows the decomposition texture schematic diagrams of linear motor provided by the embodiment of the utility model.
Description of symbols.
1. slide unit, 2. pedestals, 3. grating scales, 4. reading heads, 5. grating scale fixed frames, 6. reading head frames, 7. sliding blocks,
8. electric mover, 9. motor stators, 10. sliding rails；
2-1. first step, 2-2. second step；
5-1. interconnecting piece, 5-2. grating scale fixed part.
Specific embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should also be noted that unless another
It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
One embodiment according to the present utility model, a kind of linear motor provided, wherein changing reading head 4 and light
The installation site of grid ruler 3.The linear motor includes the electric mover 8 and motor stator 9 to move along a straight line that cooperate, wherein
Motor stator 9 is fixed on pedestal 2, and electric mover 8 is fixed on slide unit 1, and reading head 4 is provided on pedestal 2, on sliding 1
It is provided with grating scale 3, reading head 4 is configurable for reading the scale on the grating scale 3, to determine the slide unit 1
Position.
In a specific example, the specific structure of the linear motor is, shown referring to Figures 1 and 2, including pedestal 2
With the slide unit 1 being set on pedestal 2；Downwardly convex interconnecting piece is provided in the middle part of the bottom surface of the slide unit 1, interconnecting piece connection
Electric mover 8 is located at the part at left and right sides of interconnecting piece on the bottom surface of slide unit 1 and respectively connects a sliding block 7, each 7 frame of sliding block
On the sliding rail 10 of a strip (sliding block 7 can move in a straight line on sliding rail 10), two sliding rails 10 are both secured to pedestal 2
On；Grating scale 3 is equipped with by grating scale fixed frame 5 on the outer wall of above-mentioned slide unit 1；The lower part of the grating scale fixed frame 5 together with
Grating scale 3 is extended to together on the lateral wall of pedestal 2；It is provided with motor stator 9 in pedestal 2, passes through on the lateral wall of pedestal 2
Reading head frame 6 is equipped with reading head 4, which faces above-mentioned grating scale 3.
Grating scale 3 is connect by grating scale fixed frame 5 with slide unit 1, by reading head 4 by the linear motor of the utility model
It is fixed on pedestal 2 by reading head frame 6.In this way, reading head 4 is fixed, reading head 4 in linear motor operation
Cable can fixed no relative motion, the installation space of cable can be saved, cable can also be avoided to be bent repeatedly
Lead to broken string, poor contact.The linear motor is stable and long service life.
Wherein, the structure of pedestal 2 is, referring to FIG. 1 and FIG. 2 shown in, comprising: bottom and be set on the side of bottom two opposite sides
Side wall；Wherein, a step fixed frame (being symmetrical set) is respectively set on the inner wall of two side walls, and each step is fixed
Frame includes first step 2-1 and second step 2-2 set up and down；Two sliding rails 10 are individually fixed in two second step 2-
On 2, and the side of first step 2-1, for positioning to sliding rail 10, electric mover 8 is located between two second step 2-2
Space in；Motor stator 9 is set on bottom, and is located at the lower section of electric mover 8.
Motor stator 9 is the stationary part of motor, and main effect is to generate magnetic field, and electric mover 8 mainly exists
By magnetic force line cutting and then generation (output) electric current in magnetic field.Wherein, electric mover 8 and motor stator 9, which cooperate, carries out directly
Line movement, drives above-mentioned two pieces of sliding blocks 7 to generate linear motion on respective sliding rail 10, so that slide unit 1 be driven to move in a straight line.
Wherein, the structure of grating scale fixed frame 5 can according to need flexible setting.
In a specific example, grating scale fixed frame 5, referring to FIG. 1 and FIG. 2 shown in, comprising: interconnecting piece 5-1 and solid
Meet the grating scale fixed part 5-2 in the lower part interconnecting piece 5-1.Wherein, the lower part of interconnecting piece 5-1 and grating scale fixed part 5-2 connect
It is integrated；Interconnecting piece 5-1 is connect with the outer wall of slide unit 1, and fixed grating ruler 3 is used on grating scale fixed part 5-2.When the cunning of motor
When platform 1 moves in a straight line, slide unit 1 can drive grating scale fixed frame 5 to move in a straight line, and at the same time, be fixed on grating scale and fix
Grating scale 3 on frame 5 moves in a straight line together with slide unit 1.
Optionally, referring to shown in Fig. 2, interconnecting piece 5-1 is designed to the U-shaped structure to stand upside down, there are two tie point and light
Grid ruler fixed part 5-2 connection is able to maintain grating scale fixed part 5-2 and is in horizontality, and connects stronger.
Optionally, multiple screw holes (illustrating only two in figure) is opened up on interconnecting piece 5-1, screw can be used interconnecting piece
5-1 links together with slide unit 1, disassembly, installation convenient for grating scale fixed frame 5.It is, of course, also possible to using other connection sides
Formula, as long as grating scale fixed frame 5 is enable to connect with slide unit 1.
Optionally, grating scale 3 can be removably set on grating scale fixed part 5-2, to be convenient for changing light
Grid ruler 3 or adjustment grating scale 3.It is of course also possible to which other modes are fixed on grating scale fixed part 5-2, as long as can make grating scale 3
It is securely connect with grating scale fixed part 5-2, it will not there is a phenomenon where grating scales 3 to fall, falls off during using motor.
Wherein, grating scale fixed part 5-2 and grating scale 3 will extend to together on the lateral wall of pedestal 2, in order to make pedestal
Reading head 4 is fixed on 2 against grating scale 3.
Wherein, reading head frame 6 is used to reading head 4 being fixed on pedestal 2.
In a specific example, reading head frame 6 uses L-type fixed frame.Specifically: reading head frame is in
L-type structure, L-type structure are used to support fixed reading head 4, the connection that another side can be consolidated with pedestal 2, so as to make to read on one side
Several 4 fixations.And L-type fixed rack structure is simple, processing easy to produce.
Optionally, multiple screw holes are provided on L-type fixed frame, head frame 6 will be read and pass through the outer of screw and pedestal 2
Reading head 4 is connected by screw in reading on head frame 6 by wall connection, and this connection type is easy to disassemble, assembles, convenient
Replace reading head 4.
Certainly, the structure for reading head frame 6 can according to need flexible setting, such as: cube, square, right angle
The shapes such as triangle body, as long as one side can support fixed reading head 4, another side can be bonded with the outer wall of pedestal 2.
Another embodiment according to the present utility model, a kind of installation method of the linear motor reading head provided, ginseng
According to shown in Fig. 1 and Fig. 2, comprising the following steps:
Grating scale fixed frame 5 is installed on the outer wall of the slide unit 1 of linear motor, light is installed on the grating scale fixed frame 5
Grid ruler 3, and the lower part of the grating scale fixed frame 5 extends on the lateral wall of pedestal 2 of linear motor together with grating scale 3；
Reading head 4 is installed by reading head frame 6 on the lateral wall of above-mentioned pedestal 2, and the reading head 4 is made to face above-mentioned light
Grid ruler 3.
Wherein, grating scale 3 can be moved in a straight line with slide unit 1, and reading head 4 is fixed on pedestal 2 and remains stationary, but
Reading head 4 is allowed to face grating scale 3, in order to measure.
Wherein, grating scale fixed frame 5 is for connection to grating scale 3 and slide unit 1.The structure of grating scale fixed frame 5 can root
According to needing flexible setting.
In a specific example, grating scale fixed frame 5 may include in the two parts being vertically connected with, specifically, ginseng
According to shown in Fig. 1 and Fig. 2, comprising: the interconnecting piece 5-1 and grating scale fixed part 5-2 for being fixed in the lower part interconnecting piece 5-1；Wherein, even
The lower part of socket part 5-1 is linked together with grating scale fixed part 5-2；Interconnecting piece 5-1 is connect with the outer wall of slide unit 1, and grating scale is fixed
Fixed grating ruler 3 is used on portion 5-2.When the slide unit 1 of motor moves in a straight line, slide unit 1 can drive grating scale fixed frame 5 to do directly
Line movement, the grating scale 3 being fixed on grating scale fixed frame 5 at this time move together with slide unit 1.
Optionally, referring to shown in Fig. 2, interconnecting piece 5-1 is in the U-shaped structure to stand upside down, and there are two points and grating scale fixed part
5-2 connection is able to maintain grating scale fixed part 5-2 and is in horizontality, and connects stronger.Further optionally, connection
Portion 5-1 and grating scale fixed part 5-2 directly injection molding when production is integrated.
Optionally, multiple screw holes (two are illustrated only in figure) is opened up on interconnecting piece 5-1, using screw by interconnecting piece 5-1
It is connect with slide unit 1, easy to disassemble, installation.It is, of course, also possible to using other connection types, as long as enabling grating scale fixed frame 5
It is connect with slide unit 1.
Optionally, grating scale 3 can be removably set on grating scale fixed part 5-2, to be convenient for changing light
Grid ruler or adjustment grating scale.It is of course also possible to other modes are fixed on grating scale fixed part 5-2, if can make grating scale 3 with
Grating scale fixed part 5-2 is securely connected, and grating scale 3 will not be occurred during using motor and be fallen phenomenon.
Wherein, reading head frame 6 is used to reading head 4 being fixed on pedestal 2, and remains stationary.
In a specific example, reading head frame 6 uses L-type fixed frame.Specifically: reading head frame 6
It is of an L-shaped structure；L-type structure is used to support fixed reading head 4 on one side, and the connection that another side can be consolidated with pedestal 2 can make to read
First 4 fixation.
Optionally, multiple screw holes are provided on L-type fixed frame, head frame 6 will be read and pass through the outer of screw and pedestal 2
Reading head 4 is connected by screw in reading on head frame 6 by wall connection, and this connection type is easy to disassemble, assembles, convenient
Replace reading head 4.
The structure of reading head frame 6 can according to need flexible setting, such as: cube, square, right angle trigonometry body
Etc. shapes, as long as one side can support fixation reading head 4, another side can be bonded with the outer wall of pedestal 2.
The installation method of linear motor reading head provided by the embodiment of the utility model, by the reading head 4 and light in motor
The installation site of grid ruler 3 is exchanged, and grating scale 3 is installed on slide unit 1, moves in a straight line grating scale 3 with slide unit 1,
Reading head 4 is installed on pedestal 2 and is remained stationary.It forms a kind of reading head to fix and the mode of grating scale movement, reading
First 4 cable is not necessarily to away drag chain wiring, is highly suitable under the linear motor movement travel very short and small environment of installation space.And
And the cable of reading head 4 is in as reading head 4 and fixes, no high frequency motion, the cable of reading head 4 is without wind such as fracture, agings
Danger, can increase the service life of the cable of reading head 4, be further able to improve the stability and service life of motor operation.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including element.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Although being described in detail by some specific embodiments of the example to the utility model, this field
It is to be understood by the skilled artisans that example above merely to be illustrated, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can be repaired without departing from the scope of the invention to above embodiments
Change.The scope of the utility model is defined by the following claims.
Claims (10)
1. a kind of linear motor, which is characterized in that including the electric mover (8) and motor stator to move along a straight line that cooperate
(9), the motor stator (9) is fixed on pedestal (2), and the electric mover (8) is fixed on slide unit (1), in the pedestal
(2) it is provided with reading head (4) on, is provided on the slide unit (1) grating scale (3), the reading head (4) is configurable for
The scale on the grating scale (3) is read, to position to the slide unit (1).
2. linear motor according to claim 1, which is characterized in that solid by grating scale on the outer wall of the slide unit (1)
Determine frame (5) and grating scale (3) are installed；The lower part of the grating scale fixed frame (5) extends to the bottom together with grating scale (3)
On the lateral wall of seat (2).
3. linear motor according to claim 1, which is characterized in that motor stator (9) are provided in the pedestal (2),
It is equipped with reading head (4) on the lateral wall of the pedestal (2) by reading head frame (6), the reading head (4) faces institute
State grating scale (3).
4. linear motor according to claim 1, it is characterised in that: be provided in the middle part of the bottom surface of the slide unit (1) downwards
The interconnecting piece of protrusion, the interconnecting piece connect electric mover (8), positioned at interconnecting piece two sides on the bottom surface of the slide unit (1)
Respectively one sliding block (7) of connection, each sliding block (7) are set up on a sliding rail (10) for part, and two sliding rails (10) are both secured to institute
It states on pedestal (2).
5. linear motor according to claim 4, which is characterized in that the pedestal (2) includes: bottom and is set to bottom
Side wall on the side of two opposite sides；Wherein, a step fixed frame is respectively set on the inner wall of two side walls, each described
Stepwise fixed frame includes first step set up and down (2-1) and second step (2-2)；
Two sliding rails (10) are individually fixed on two second steps (2-2), and the side of the first step (2-1) is used
It is positioned in the sliding rail (10), the electric mover (8) is located in the space between two second steps (2-2)；
The motor stator (9) is set on the bottom, and is located at the lower section of the electric mover (8), the electric mover
(8) it interacts with the motor stator (9) to be moved in a straight line by described two sliding blocks (7) driving slide unit (1).
6. linear motor according to claim 4, which is characterized in that the grating scale fixed frame (5) includes: interconnecting piece
(5-1) and the grating scale fixed part (5-2) for being fixed in the lower part the interconnecting piece (5-1)；
The outer wall of the slide unit (1) is connect with the interconnecting piece (5-1), and the grating scale (3) is fixed in the grating scale and fixes
In portion (5-2).
7. linear motor according to claim 6, which is characterized in that the outer wall and the interconnecting piece (5- of the slide unit (1)
1) it is connected by screw to.
8. linear motor according to claim 6, which is characterized in that the interconnecting piece (5-1) is in the U-shaped structure to stand upside down.
9. linear motor according to claim 4, which is characterized in that the reading head frame (6) passes through screw and bottom
Seat (2) connection.
10. linear motor according to claim 4, which is characterized in that the reading head frame (6) is of an L-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820929108.2U CN208508761U (en) | 2018-06-14 | 2018-06-14 | A kind of linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820929108.2U CN208508761U (en) | 2018-06-14 | 2018-06-14 | A kind of linear motor |
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| Publication Number | Publication Date |
|---|---|
| CN208508761U true CN208508761U (en) | 2019-02-15 |
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ID=65286646
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| CN201820929108.2U Active CN208508761U (en) | 2018-06-14 | 2018-06-14 | A kind of linear motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518777A (en) * | 2019-09-25 | 2019-11-29 | 中车株洲电机有限公司 | The bilateral dynamic primary formula linear motor of one kind and its air gap stability control mechanism |
| CN110829783A (en) * | 2019-11-15 | 2020-02-21 | 安徽同兴科技发展有限责任公司 | Constant-speed permanent magnet synchronous linear motor and response equation derivation method thereof |
| WO2022047938A1 (en) * | 2020-09-01 | 2022-03-10 | 瑞声声学科技(深圳)有限公司 | Linear motor |
| WO2022047893A1 (en) * | 2020-09-03 | 2022-03-10 | 瑞声声学科技(深圳)有限公司 | Linear electric motor |
-
2018
- 2018-06-14 CN CN201820929108.2U patent/CN208508761U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518777A (en) * | 2019-09-25 | 2019-11-29 | 中车株洲电机有限公司 | The bilateral dynamic primary formula linear motor of one kind and its air gap stability control mechanism |
| CN110518777B (en) * | 2019-09-25 | 2021-10-29 | 中车株洲电机有限公司 | Double-side-acting primary linear motor and air gap stability control mechanism thereof |
| CN110829783A (en) * | 2019-11-15 | 2020-02-21 | 安徽同兴科技发展有限责任公司 | Constant-speed permanent magnet synchronous linear motor and response equation derivation method thereof |
| CN110829783B (en) * | 2019-11-15 | 2021-09-03 | 安徽同兴科技发展有限责任公司 | Constant-speed permanent magnet synchronous linear motor and response equation derivation method thereof |
| WO2022047938A1 (en) * | 2020-09-01 | 2022-03-10 | 瑞声声学科技(深圳)有限公司 | Linear motor |
| WO2022047893A1 (en) * | 2020-09-03 | 2022-03-10 | 瑞声声学科技(深圳)有限公司 | Linear electric motor |
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