CN105071590A - Oil-free maintenance-free linear drive unit for sun tracker - Google Patents
Oil-free maintenance-free linear drive unit for sun tracker Download PDFInfo
- Publication number
- CN105071590A CN105071590A CN201510529497.0A CN201510529497A CN105071590A CN 105071590 A CN105071590 A CN 105071590A CN 201510529497 A CN201510529497 A CN 201510529497A CN 105071590 A CN105071590 A CN 105071590A
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- China
- Prior art keywords
- shaft sleeve
- sliding shaft
- screw mandrel
- outer tube
- lead screw
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention disclose an oil-free maintenance-free linear drive unit for a sun tracker. The oil-free maintenance-free linear drive unit comprises an outer tube and a lead screw arranged inside the outer tube. A driving nut in a screw-thread fit with the lead screw is arranged on the lead screw. A mounting ring is arranged at the position corresponding to the connecting end of the lead screw and a driving mechanism inside the outer tube. A left step type sliding shaft sleeve and a right step type sliding shaft sleeve are respectively arranged at the two ends of the mounting ring, wherein the shaft sleeves are made of engineering plastics; the inner walls of the left step type sliding shaft sleeve and the right step type sliding shaft sleeve are in contact with the lead screw; and the lead screw can rotate relative to the left step type sliding shaft sleeve and the right step type sliding shaft sleeve. A composite layer is formed on the hole wall of the driving nut in an injection molding mode by using engineering plastics; and threads cooperating with the lead screw correspondingly are arranged on the composite layer. According to the invention, on the basis of an analysis of a sun tracker operation mode and combination of the modern engineering plastic and composite technology, the linear driver used by the solar energy is processed based on the oil-free maintenance-free design, so that the trouble of lubrication failure is completely eliminated.
Description
Technical field
The invention belongs to solar energy tracking technical field, particularly a kind of for sun tracker without oily non-maintaining linear drive apparatus.
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.
Summary of the invention
The object of the invention is to: for above-mentioned Problems existing, provide a kind of can thoroughly solve break down because of lubrication failure for sun tracker without oily non-maintaining linear drive apparatus.
Technical scheme of the present invention be achieved in that a kind of for sun tracker without oily non-maintaining linear drive apparatus, 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.
Of the present invention for sun tracker without oily non-maintaining linear drive apparatus, 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 present invention, 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 invention.
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 present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figures 3 and 4, a kind of for sun tracker without oily non-maintaining linear drive apparatus, 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 invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. one kind for sun tracker without oily non-maintaining linear drive apparatus, 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. according to claim 1 for sun tracker without oily non-maintaining linear drive apparatus, 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 |
|---|---|---|---|
| CN201510529497.0A CN105071590B (en) | 2015-08-26 | 2015-08-26 | A kind of non-maintaining linear drive apparatus of oil-free for sun tracker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510529497.0A CN105071590B (en) | 2015-08-26 | 2015-08-26 | A kind of non-maintaining linear drive apparatus of oil-free for sun tracker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105071590A true CN105071590A (en) | 2015-11-18 |
| CN105071590B CN105071590B (en) | 2018-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510529497.0A Active CN105071590B (en) | 2015-08-26 | 2015-08-26 | A kind of non-maintaining linear drive apparatus of oil-free for sun tracker |
Country Status (1)
| Country | Link |
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| CN (1) | CN105071590B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314090A (en) * | 2017-07-04 | 2017-11-03 | 浙江捷昌线性驱动科技股份有限公司 | It is a kind of can bidirectional self-locking electric pushrod |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201196590Y (en) * | 2008-03-31 | 2009-02-18 | 佛山市顺德区海川智能机器制造有限公司 | Joint link lever for combination weighing bucket |
| CN101895239A (en) * | 2010-08-16 | 2010-11-24 | 成都钟顺科技发展有限公司 | Reflective low-concentration photovoltaic generator |
| CN102269253A (en) * | 2010-06-02 | 2011-12-07 | 大银微系统股份有限公司 | Assembled structure of actuator |
| CN202598001U (en) * | 2012-03-29 | 2012-12-12 | 爱康（廊坊）建材有限公司 | Environment-friendly plastic nut |
| CN102968127A (en) * | 2012-11-13 | 2013-03-13 | 四川钟顺太阳能开发有限公司 | Linear driving device and controlling and using method of linear driving device for solar tracker |
| CN204886531U (en) * | 2015-08-26 | 2015-12-16 | 四川钟顺太阳能开发有限公司 | Straight line driver |
-
2015
- 2015-08-26 CN CN201510529497.0A patent/CN105071590B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201196590Y (en) * | 2008-03-31 | 2009-02-18 | 佛山市顺德区海川智能机器制造有限公司 | Joint link lever for combination weighing bucket |
| CN102269253A (en) * | 2010-06-02 | 2011-12-07 | 大银微系统股份有限公司 | Assembled structure of actuator |
| CN101895239A (en) * | 2010-08-16 | 2010-11-24 | 成都钟顺科技发展有限公司 | Reflective low-concentration photovoltaic generator |
| CN202598001U (en) * | 2012-03-29 | 2012-12-12 | 爱康（廊坊）建材有限公司 | Environment-friendly plastic nut |
| CN102968127A (en) * | 2012-11-13 | 2013-03-13 | 四川钟顺太阳能开发有限公司 | Linear driving device and controlling and using method of linear driving device for solar tracker |
| CN204886531U (en) * | 2015-08-26 | 2015-12-16 | 四川钟顺太阳能开发有限公司 | Straight line driver |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314090A (en) * | 2017-07-04 | 2017-11-03 | 浙江捷昌线性驱动科技股份有限公司 | It is a kind of can bidirectional self-locking electric pushrod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105071590B (en) | 2018-03-27 |
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Effective date of registration: 20230526 Address after: No. 1913, 19th Floor, Unit 1, Building 9, No. 1700, North Section of Tianfu Avenue, High tech Zone, Chengdu, Sichuan, 610000 Patentee after: CHENG DU ZHONG SHUN SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 610207 within the third phase of Industrial Development Zone of Southwest Airport Economic Development Zone, Shuangliu County, Chengdu City, Sichuan Province Patentee before: SI CHUAN ZHONG SHUN SOLAR ENERGY DEVELOPMENT Co.,Ltd. |