CN203708073U - Linear motor - Google Patents
Linear motor Download PDFInfo
- Publication number
- CN203708073U CN203708073U CN201420084509.4U CN201420084509U CN203708073U CN 203708073 U CN203708073 U CN 203708073U CN 201420084509 U CN201420084509 U CN 201420084509U CN 203708073 U CN203708073 U CN 203708073U
- Authority
- CN
- China
- Prior art keywords
- memory alloy
- alloy wire
- shell
- slide block
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Transmission Devices (AREA)
Abstract
The utility model relates to a linear motor. The linear motor comprises a shell; a sliding cavity is arranged in the shell; a slider is arranged in the sliding cavity; the front end of the slider is horizontally connected with a motor output shaft extending out from the shell; the motor output shaft inside the shell is sleeved with a slider reset spring; at least one shape memory alloy wire which winds the slider is arranged in the shell; two free ends of the shape memory alloy wire are fixed on one side of the shell, the motor output shaft extending out from the one side of the shell; and the shape memory alloy wire is communicated with an external power source outside the shell. According to the linear motor of the utility model, the shape memory alloy wire can directly convert electrical energy into linear-motion mechanical energy without any transmission device of an intermediate conversion mechanism required. The linear motor has the advantages of simple structure and small size. According to the linear motor, linear driving can be realized with a minimum number of components required; and only one movement component exists, and therefore, maintenance is simple, and the wear of the components can be decreased, and the service lives of the components are longer.
Description
Technical field
The utility model relates to a kind of motor, particularly a kind of linear electric motors.
Background technology
Linear electric motors are that electric energy is directly changed into straight-line mechanical energy, the complex structure of existing linear electric motors, and parts are many, need intermediate conversion mechanism to change when work, therefore produce complexity, waste time and energy, and production cost is also high, and maintenance is also inconvenient.
Summary of the invention
Technical problem to be solved in the utility model is for the deficiencies in the prior art, and a kind of linear electric motors reasonable in design, simple in structure are provided.
Technical problem to be solved in the utility model is to realize by following technical scheme, a kind of linear electric motors, be characterized in: comprise housing, in housing, be provided with sliding chamber, in sliding chamber, be provided with slide block, the front end level connection joint of slide block has the motor output shaft that stretches out housing, is set with slide block back-moving spring on the motor output shaft in housing; In sliding chamber, be provided with at least one shape-memory alloy wire walking around slide block, two free ends of shape-memory alloy wire are fixed on the housing that motor output shaft stretches out a side, and described shape-memory alloy wire is connected with the external power source outside housing.
Technical problem to be solved in the utility model can also further realize by following technical scheme, described linear electric motors, be characterized in: described inner walls is provided with stroke limit chute, on housing, be provided with the stroke limit guide pad coordinating with stroke limit chute.
Technical problem to be solved in the utility model can also further realize by following technical scheme, and described linear electric motors, are characterized in: described shape-memory alloy wire is provided with 3, is located at side by side up and down on slide block.
Technical problem to be solved in the utility model can also further realize by following technical scheme, and described linear electric motors, are characterized in: the front portion of described slide block is provided with lightening grooves.
Technical problem to be solved in the utility model can also further realize by following technical scheme, and described linear electric motors, are characterized in: described slide block afterbody be provided with the flange coordinating with inner walls.
The utility model is by shape-memory alloy wire energising, and the shape-memory alloy wire huge recovery stress that after-contraction produces that is heated, slide block is travelled forward, thereby the output shaft of drive motor travels forward; After power-off, shape-memory alloy wire returns to original shape, under the effect of slide block back-moving spring, playbacks.So repeatedly, to shape-memory alloy wire heating, make motor output shaft repeatedly do straight reciprocating motion.
The utility model is directly changed into straight-line mechanical energy by shape-memory alloy wire by electric energy, and without any need for the transmission device of intermediate conversion mechanism, compared with prior art, it is simple in structure, and volume is little, realizes linear drives with minimum amount of parts, and be the parts that only have a motion, therefore safeguard simply, greatly reduce the wearing and tearing of parts, longer service life.
Brief description of the drawings
Fig. 1 is a kind of sectional structure schematic diagram of the present utility model.
Fig. 2 is the sectional structure schematic diagram of overlooking of the present utility model.
Fig. 3 is that the A-A of Fig. 2 is to structural representation.
Embodiment
With reference to figure 1, Fig. 2 and Fig. 3, a kind of linear electric motors, comprise housing 3, in housing 3, be provided with sliding chamber, in sliding chamber, be provided with slide block 5, the front end level connection joint of slide block 5 has the motor output shaft 1 that stretches out housing 3, on the motor output shaft 1 in housing 3, is set with slide block back-moving spring 2; In sliding chamber, be provided with at least one shape-memory alloy wire 4 of walking around slide block 5, when use, select suitable radical according to power output.Two free ends of shape-memory alloy wire 4 are fixed on the housing 3 that motor output shaft 1 stretches out a side, and described shape-memory alloy wire 4 is connected with the external power source outside housing 3.The front portion of slide block 5 is provided with lightening grooves 9.Slide block 5 afterbody be provided with the flange 8 coordinating with housing 3 inwalls, can prevent that shape-memory alloy wire 4 and housing 3 inwalls from touching mutually.
When use, switch on to shape-memory alloy wire 4, the huge recovery stress that shape-memory alloy wire 4 is produced by thermal contraction generation deformation, makes motor output shaft 1 moving linearly.The diameter of shape-memory alloy wire 4 selects 0.1 or 0.2, needs the logical voltage that is more than or equal to 6V, energising heating after-contraction, and shrinkage ratio is 5 ﹪ of length, and the single of convergent force diameter 0.1 is 100 grams, and the single of diameter 0.2 is 400 grams.
After power-off, shape-memory alloy wire 4 returns to original shape, under the effect of slide block back-moving spring 2, playbacks.Heat so repeatedly to shape-memory alloy wire 4, make motor output shaft 1 repeatedly do straight reciprocating motion.Thereby the mechanical energy of converting electric energy to.
Described housing 3 inwalls are provided with stroke limit chute 6, are provided with the stroke limit guide pad 7 coordinating with stroke limit chute 6 on housing 3.Can limit like this sliding stroke and the direction of slide block 5.
Described shape-memory alloy wire 4 is provided with 3, is located at side by side up and down on slide block 5.Select the radical of shape-memory alloy wire 4 to determine according to the size of power output.
The utility model can be applied in needs the short time, provide in short distance huge rectilinear motion can device in.
Claims (5)
1. linear electric motors, is characterized in that: comprise housing, be provided with sliding chamber in housing, in sliding chamber, be provided with slide block, the front end level connection joint of slide block has the motor output shaft that stretches out housing, is set with slide block back-moving spring on the motor output shaft in housing; In sliding chamber, be provided with at least one shape-memory alloy wire walking around slide block, two free ends of shape-memory alloy wire are fixed on the housing that motor output shaft stretches out a side, and described shape-memory alloy wire is connected with the external power source outside housing.
2. linear electric motors according to claim 1, is characterized in that: described inner walls is provided with stroke limit chute, are provided with the stroke limit guide pad coordinating with stroke limit chute on housing.
3. linear electric motors according to claim 1, is characterized in that: described shape-memory alloy wire is provided with 3, are located at side by side up and down on slide block.
4. linear electric motors according to claim 1, is characterized in that: the front portion of described slide block is provided with lightening grooves.
5. linear electric motors according to claim 1, is characterized in that: described slide block afterbody be provided with the flange coordinating with inner walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420084509.4U CN203708073U (en) | 2014-02-27 | 2014-02-27 | Linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420084509.4U CN203708073U (en) | 2014-02-27 | 2014-02-27 | Linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203708073U true CN203708073U (en) | 2014-07-09 |
Family
ID=51058451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420084509.4U Expired - Fee Related CN203708073U (en) | 2014-02-27 | 2014-02-27 | Linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203708073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812302A (en) * | 2014-02-27 | 2014-05-21 | 江苏苏云医疗器材有限公司 | Linear motor |
-
2014
- 2014-02-27 CN CN201420084509.4U patent/CN203708073U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812302A (en) * | 2014-02-27 | 2014-05-21 | 江苏苏云医疗器材有限公司 | Linear motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |