CN205064199U - Linear drive - Google Patents
Linear drive Download PDFInfo
- Publication number
- CN205064199U CN205064199U CN201520706376.4U CN201520706376U CN205064199U CN 205064199 U CN205064199 U CN 205064199U CN 201520706376 U CN201520706376 U CN 201520706376U CN 205064199 U CN205064199 U CN 205064199U
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- CN
- China
- Prior art keywords
- drive screw
- base
- memory polymer
- shape
- 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
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Abstract
Linear drive belongs to the driving device, dispose drive screw centering casing and base respectively in casing assembly downside outside and inside, through bolt group with the drive screw casing of feeling relieved, an organic whole is dressed up with the casing assembly admittedly to the base, drive screw axially movable's cartridge is at the casing assembly, on base and the drive screw centering casing, threaded connection joins in marriage dress sprocket nut on the lateral part on drive screw, the chain cover is joined in marriage on the sprocket nut, the both ends head of chain is respectively through a first fastener and a left side, the one end of the shape memory polymer driver on right side is connected, a left side, the other end of the shape memory polymer driver on right side is connected with the base through the second fastener respectively, this ware adopts the shape memory polymer driver to replace traditional mechanical system drive, when simplify the actuating system structure, reducing the control process complexity, has adapted to the application in the acid -base environment again, has the characteristics that novel structure is simple, control is convenient, corrosion -resistant, the quality is light.
Description
Technical field
The invention belongs to driving device, relates generally to the linear actuator that a kind of shape-memory polymer driver is formed.
Background technique
Driver is widely used a kind of mechanical device in engineering practice.At present, most of driver all adopts traditional driving mode, and composition component majority is metal material.But.In engineering practice, operating mode is very complicated, especially the driver that uses under strong acid, highly basic etc. have highly corrosive condition as being in of some special environments, require high to the corrosion of opposing surrounding medium, the existing driver based on metal material can not meet its usage requirement.Visible, develop a kind of linear actuator especially with highly corrosion resistant and there is very important engineering significance.
Summary of the invention
The object of the invention is to there is complex structure and quality weight for the existing driver based on metal material, especially the deficiency worked under being unsuitable for the environment such as strong acid, highly basic, design provides a kind of linear actuator of new structure, reaches simplified structure, weight reduction, the object that can use in acid or alkali environment.
The object of the invention is achieved in that a kind of linear actuator, configuration driven screw rod centering housing on housing assembly lower outside center portion, at described housing assembly internal configurations base, drive screw to be felt relieved housing by bolt group, base and housing assembly are packed in one, what drive screw can move axially is inserted into housing assembly successively, base and drive screw are felt relieved on housing, can stretch on housing assembly top in the upper end portion of described drive screw, described drive screw lower side and drive screw feel relieved housing radially, circumference location fit, on described drive screw upper lateral part, be positioned at chassis interior to be threaded equipped sprocket wheel nut, the thread helix lift angle angle value of described drive screw and sprocket wheel nut is in the angular range of mutual self-locking, chain cover fits on sprocket wheel nut, the two ends of described chain is respectively by the first fastening piece and a left side, one end of the shape-memory polymer driver on right side connects, a described left side, the other end of the shape-memory polymer driver on right side is connected with base respectively by the second fastening piece, the shape-memory polymer driver in described left side is in the reset condition of folding shrinking, the shape-memory polymer driver on right side is in the predeformation state of launching to stretch, described sprocket wheel nut, drive screw, bolt group, housing assembly, base, chain, first and second fastening piece and drive screw centering housing all adopts the polymer material of decay resistance to manufacture.
The invention utilizes polymer to have extremely strong rotproofness, be applied to actuator part design, replace metal material, can be used for the highly corrosive environments such as strong acid, highly basic, and utilize the shape memory characteristic of shape-memory polymer, replace traditional Mechanical Driven mode with shape memory effect, simplify driving system structure, reduce the complexity of control procedure, have the advantages that structure is simply novel, control is convenient, corrosion-resistant, quality is light, expanded the Applicable scope of driver.
Accompanying drawing explanation
Fig. 1 is linear actuator general structure schematic diagram;
Fig. 2 be in Fig. 1 A-A to sectional view.
In figure, piece number illustrates:
1, sprocket wheel nut, 2, drive screw, 3, bolt group, 4, housing assembly, 5, base, 6, chain, 7, the first fastening piece, 8, shape-memory polymer driver, 9, the second fastening piece, 10, drive screw centering housing.
Embodiment
Below in conjunction with accompanying drawing, the invention embodiment is described in detail.A kind of linear actuator, configuration driven screw rod centering housing 10 on housing assembly 4 lower outside center portion, at described housing assembly 4 internal configurations base 5, drive screw to be felt relieved housing 10 by bolt group 3, base 5 and housing assembly 4 are packed in one, what drive screw 2 can move axially is inserted into housing assembly 4 successively, base 5 and drive screw are felt relieved on housing 10, can stretch on housing assembly 4 top in the upper end portion of described drive screw 2, described drive screw 2 lower side and drive screw feel relieved housing 10 radially, circumference location fit, on described drive screw 2 upper lateral part, be positioned at base 5 internal whorl and connect equipped sprocket wheel nut 1, the thread helix lift angle angle value of described drive screw 2 and sprocket wheel nut 1 is in the angular range of mutual self-locking, chain 6 cover fits on sprocket wheel nut 1, the two ends of described chain 6 is respectively by the first fastening piece 7 and a left side, one end of the shape-memory polymer driver 8 on right side connects, a described left side, the other end of the shape-memory polymer driver 8 on right side is connected with base 5 respectively by the second fastening piece 9, the shape-memory polymer driver 8 in described left side is in the reset condition of folding shrinking, the shape-memory polymer driver 8 on right side is in the predeformation state of launching to stretch, described sprocket wheel nut 1, drive screw 2, bolt group 3, housing assembly 4, base 5, chain 6, first and second fastening piece 7,9 and drive screw centering housing 10 all adopt the polymer material of decay resistance to manufacture.
Realize the working procedure of the positive direction actuation of driver: the resistance screen electrified regulation built-in to shape-memory polymer driver 8, temperature is made to reach shape-memory polymer transition temperature, the shape memory effect of shape-memory polymer drives the right side shape-memory polymer driver 8 being in expansion predeformation state recovery of shape occurs and folds, thus chain drive-belt 6 is along the certain displacement of clockwise movement, chain 6 is with movable sprocket nut 1 along rotating clockwise corresponding angle, drive screw 2 moves linearly along driving spiral shell housing 10 of directly feeling relieved, make the left side shape-memory polymer driver 8 being in folded state predeformation occur and launch simultaneously, achieve the positive direction actuation of driver.Its amount of deformation can be controlled by the activation temperature controlling shape-memory polymer driver 8, make the corresponding displacement of chain 6 clockwise movement, the clockwise angle of band movable sprocket nut 1, thus the forward output displacement of control and drive system.
Realize the working procedure of the reverse direction actuation of driver: the resistance screen electrified regulation built-in to shape-memory polymer driver 8, temperature is made to reach shape-memory polymer transition temperature, the shape memory effect of shape-memory polymer drives the left side shape-memory polymer driver 8 being in expansion predeformation state recovery of shape occurs and folds, thus chain drive-belt 6 is along the certain displacement of counterclockwise movement, chain 6 is with movable sprocket nut 1 to rotate counterclockwise corresponding angle, drive screw 2 moves linearly along drive screw centering housing 10, make the right side shape-memory polymer driver 8 being in folded state predeformation occur and launch simultaneously, achieve the reverse direction actuation of driver.Its amount of deformation can be controlled by the activation temperature controlling shape-memory polymer driver 8, make the corresponding displacement of chain 6 counterclockwise movement, the reverse angle of band movable sprocket nut 1, thus the reverse output displacement of control and drive system.
When stopping the resistance screen electrified regulation built-in to shape-memory polymer driver 8, sprocket wheel nut 1 respect thereto 5 transfixion, between sprocket wheel nut 1 and drive screw 2, ensure that drive screw 2 is static by self-locking.
Claims (1)
1. a linear actuator, it is characterized in that: configuration driven screw rod centering housing (10) on housing assembly (4) lower outside center portion, at described housing assembly (4) internal configurations base (5), drive screw to be felt relieved housing (10) by bolt group (3), base (5) and housing assembly (4) are packed in one, what drive screw (2) can move axially is inserted into housing assembly (4) successively, base (5) and drive screw are felt relieved on housing (10), can stretch on housing assembly (4) top in the upper end portion of described drive screw (2), described drive screw (2) lower side and drive screw feel relieved housing (10) radially, circumference location fit, on described drive screw (2) upper lateral part, be positioned at base (5) internal whorl and connect equipped sprocket wheel nut (1), the thread helix lift angle angle value of described drive screw (2) and sprocket wheel nut (1) is in the angular range of mutual self-locking, chain (6) cover fits on sprocket wheel nut (1), the two ends of described chain (6) is respectively by the first fastening piece (7) and a left side, one end of the shape-memory polymer driver (8) on right side connects, a described left side, the other end of the shape-memory polymer driver (8) on right side is connected with base (5) respectively by the second fastening piece (9), the shape-memory polymer driver (8) in described left side is in the reset condition of folding shrinking, the shape-memory polymer driver (8) on right side is in the predeformation state of launching to stretch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520706376.4U CN205064199U (en) | 2015-09-06 | 2015-09-06 | Linear drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520706376.4U CN205064199U (en) | 2015-09-06 | 2015-09-06 | Linear drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205064199U true CN205064199U (en) | 2016-03-02 |
Family
ID=55390765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520706376.4U Expired - Fee Related CN205064199U (en) | 2015-09-06 | 2015-09-06 | Linear drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205064199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425523A (en) * | 2016-12-14 | 2017-02-22 | 黑龙江科技大学 | Three-degree-of-freedom plane macro-moving worktable |
-
2015
- 2015-09-06 CN CN201520706376.4U patent/CN205064199U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425523A (en) * | 2016-12-14 | 2017-02-22 | 黑龙江科技大学 | Three-degree-of-freedom plane macro-moving worktable |
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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: 20160302 Termination date: 20180906 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |