CN204886531U - Straight line driver - Google Patents
Straight line driver Download PDFInfo
- Publication number
- CN204886531U CN204886531U CN201520649162.8U CN201520649162U CN204886531U CN 204886531 U CN204886531 U CN 204886531U CN 201520649162 U CN201520649162 U CN 201520649162U CN 204886531 U CN204886531 U CN 204886531U
- Authority
- CN
- China
- Prior art keywords
- screw mandrel
- outer tube
- shaft sleeve
- sliding shaft
- right step
- 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
The utility model discloses a straight line driver, including outer tube and the lead screw of setting in the outer tube be provided with screw -thread fit's transmission nut with it on the lead screw in the outer tube, the lead screw corresponds with the actuating mechanism link and is provided with the collar the collar both ends are provided with the left and right step slip axle sleeve that engineering plastics made respectively, the inner wall and the lead screw laminating of left and right step slip axle sleeve, just the lead screw can rotate for left and right step slip axle sleeve transmission nut's pore wall adopts the engineering plastics composite bed of having moulded plastics be provided with on the composite bed and correspond the complex screw thread with the lead screw. The utility model discloses a to the analysis of sun tracker operational mode, combine modern engineering plastics and composite technology's characteristics simultaneously, the straight line driver who uses solar energy has done no oily non -maintaining design, makes it thoroughly to have broken away from the puzzlement of lubrication failure.
Description
Technical field
The utility model belongs to solar energy tracking technical field, particularly a kind of linear actuator.
Background technology
Electric linear driver is the driver part often used in solar energy tracking field, as illustrated in fig. 1 and 2, for the structural representation of existing linear drive apparatus, driving mechanism drives screw mandrel 2 to rotate, screw mandrel 2 is driven by transmission nut 3 and does rectilinear motion with the rigidly connected expansion link 4 of transmission nut 3, and screw mandrel 2 is connected with outer tube 1 by a pair taper roll bearing 9 supporting.
In the structural design of existing linear drive apparatus, good lubrication is all needed between screw mandrel and transmission nut and in taper roll bearing, also must ensure that top rain-proof dust-proof sealing 10 can not be lost efficacy, no person's equipment can because the lubrication failure into dust of intaking be broken down simultaneously.Solar facilities generally need ensure to run for 20 years, general lubrication is difficult to ensure, and rain-proof dust-proof sealing mostly is rubber parts, within general 3 years, will lose efficacy, by practice, the electric linear driver of outdoor use is all break down at about 5 years because of lubrication failure mostly.
Utility model content
Goal of the invention of the present utility model is: for above-mentioned Problems existing, provides a kind of and can thoroughly solve the linear actuator broken down because of lubrication failure.
The technical solution of the utility model is achieved in that a kind of linear actuator, the screw mandrel comprising outer tube and arrange within the outer tube, described screw mandrel is provided with the transmission nut of threaded engagement with it, described outer tube be provided with the expansion link be connected with transmission nut between screw mandrel, it is characterized in that: in described outer tube, screw mandrel is corresponding with driving mechanism link is provided with installing ring, described installing ring is compressed within the outer tube by the clamp nut be threaded with outer tube wall, the left side that engineering plastics manufacture is respectively arranged with at described installing ring two ends, right step sliding shaft sleeve, a described left side, right step sliding shaft sleeve forms overall structure with installing ring tight fit respectively, a described left side, inwall and the screw mandrel of right step sliding shaft sleeve are fitted, and described screw mandrel can relative to a left side, right step sliding shaft sleeve rotates, engineering plastics are adopted to be injected with composite bed at the hole wall of described transmission nut, described composite bed is provided with the screw thread with screw mandrel corresponding matching.
Linear actuator described in the utility model, it is respectively arranged with left and right set thrust plate on described screw mandrel, outside left step sliding shaft sleeve and right step sliding shaft sleeve, described screw mandrel has been threaded gap adjustment binding ring, adjusts rear locking by running clearance adjustment binding ring respectively to left and right set thrust plate with the gap of left and right step sliding shaft sleeve.
The utility model, by analysis to sun tracker operational mode, simultaneously in conjunction with the feature of modern project plastics and complex technique, has done without oily non-maintaining design the linear actuator that solar energy uses, has made it thoroughly to have broken away from the puzzlement of lubrication failure.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing linear drive apparatus.
Fig. 2 is A portion enlarged drawing in Fig. 1.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is B portion enlarged drawing in Fig. 3.
Mark in figure: 1 is outer tube, 2 is screw mandrel, and 3 is transmission nut, and 4 is expansion link, 5 is installing ring, 6a is left step sliding shaft sleeve, and 6b is right step sliding shaft sleeve, and 7a is left set thrust plate, 7b is right set thrust plate, 8 is gap adjustment binding ring, and 9 is taper roll bearing, and 10 is rain-proof dust-proof sealing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figures 3 and 4, a kind of linear actuator, comprise outer tube 1 and be arranged on the screw mandrel 2 in outer tube 1, described screw mandrel 2 is provided with the transmission nut 3 of threaded engagement with it, described outer tube 1 be provided with the expansion link 4 be connected with transmission nut 3 between screw mandrel 2, in described outer tube 1, screw mandrel 2 is corresponding with driving mechanism link is provided with installing ring 5, described installing ring 5 is pressed in outer tube 1 by the clamp nut 7 be connected with outer tube 1 inner thread, the left step sliding shaft sleeve 6a of engineering plastics manufacture and right step sliding shaft sleeve 6b is respectively arranged with at described installing ring 5 two ends, a described left side, right step sliding shaft sleeve forms overall structure with installing ring 5 tight fit respectively, a described left side, inwall and the screw mandrel 2 of right step sliding shaft sleeve are fitted, and described screw mandrel 2 can relative to a left side, right step sliding shaft sleeve rotates, engineering plastics are adopted to be injected with composite bed at the hole wall of described transmission nut 3, described composite bed is provided with the screw thread with screw mandrel 2 corresponding matching, driving mechanism drives screw mandrel to rotate, screw mandrel is by being provided with the transmission nut of engineering plastics composite bed, its rotary motion is converted to the rectilinear motion of the expansion link be connected with transmission nut.Engineering plastics are easy to shaping, cheap, have good low rate start performance and to water and dirt sensitivity very low, and it is non-maintaining at total life cycle, different need for environments can be reached by different packing materials, existing engineering plastic bearing compressive property can be accomplished between 50 ~ 200Mpa, meets design requirement completely.
Wherein, on described screw mandrel 2, left set thrust plate 7a and right set thrust plate 7b is respectively arranged with outside left step sliding shaft sleeve 6a and right step sliding shaft sleeve 6b, left, right step sliding shaft sleeve is fixed radial and axial and retain rotary motion, sleeve lining bears radial load, axle sleeve step and set thrust plate bear axial force, described screw mandrel 2 has been threaded gap adjustment binding ring 8, by running clearance adjustment binding ring to a left side, right set thrust plate respectively with a left side, the gap of right step sliding shaft sleeve carries out adjusting rear locking, guarantee the rational running clearance of screw mandrel.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (2)
1. a linear actuator, comprise outer tube (1) and be arranged on the screw mandrel (2) in outer tube (1), described screw mandrel (2) is provided with the transmission nut (3) of threaded engagement with it, the expansion link (4) be connected with transmission nut (3) is provided with between described outer tube (1) with screw mandrel (2), it is characterized in that: in described outer tube (1), screw mandrel (2) is corresponding with driving mechanism link is provided with installing ring (5), described installing ring (5) is pressed in outer tube (1) by the clamp nut (7) be connected with outer tube (1) inner thread, the left side that engineering plastics manufacture is respectively arranged with at described installing ring (5) two ends, right step sliding shaft sleeve (6a, 6b), a described left side, right step sliding shaft sleeve (6a, 6b) form overall structure with installing ring (5) tight fit respectively, a described left side, right step sliding shaft sleeve (6a, inwall 6b) and screw mandrel (2) are fitted, and described screw mandrel (2) can relative to a left side, right step sliding shaft sleeve (6a, 6b) rotate, engineering plastics are adopted to be injected with composite bed at the hole wall of described transmission nut (3), described composite bed is provided with the screw thread with screw mandrel (2) corresponding matching.
2. linear actuator according to claim 1, it is characterized in that: outside, left step sliding shaft sleeve (6a) upper at described screw mandrel (2) and right step sliding shaft sleeve (6b), be respectively arranged with left and right set thrust plate (7a, 7b), described screw mandrel (2) has been threaded gap adjustment binding ring (8), adjusts binding ring (8) adjust rear locking with the gap of left and right step sliding shaft sleeve (6a, 6b) respectively to left and right set thrust plate (7a, 7b) by running clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520649162.8U CN204886531U (en) | 2015-08-26 | 2015-08-26 | Straight line driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520649162.8U CN204886531U (en) | 2015-08-26 | 2015-08-26 | Straight line driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204886531U true CN204886531U (en) | 2015-12-16 |
Family
ID=54830852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520649162.8U Expired - Fee Related CN204886531U (en) | 2015-08-26 | 2015-08-26 | Straight line driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204886531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071590A (en) * | 2015-08-26 | 2015-11-18 | 四川钟顺太阳能开发有限公司 | Oil-free maintenance-free linear drive unit for sun tracker |
-
2015
- 2015-08-26 CN CN201520649162.8U patent/CN204886531U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071590A (en) * | 2015-08-26 | 2015-11-18 | 四川钟顺太阳能开发有限公司 | Oil-free maintenance-free linear drive unit for sun tracker |
| CN105071590B (en) * | 2015-08-26 | 2018-03-27 | 四川钟顺太阳能开发有限公司 | A kind of non-maintaining linear drive apparatus of oil-free for sun tracker |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20210826 |