CN105545949A - Photovoltaic spherical bearing rotating device for flat uniaxial tracking support - Google Patents

Photovoltaic spherical bearing rotating device for flat uniaxial tracking support Download PDF

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Publication number
CN105545949A
CN105545949A CN201610107170.9A CN201610107170A CN105545949A CN 105545949 A CN105545949 A CN 105545949A CN 201610107170 A CN201610107170 A CN 201610107170A CN 105545949 A CN105545949 A CN 105545949A
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CN
China
Prior art keywords
uniaxial tracking
flat uniaxial
tracking bracket
bulb
bearing
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Granted
Application number
CN201610107170.9A
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Chinese (zh)
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CN105545949B (en
Inventor
王艳
肖新蕾
孙敏
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Individual
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Individual
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Priority to CN201610107170.9A priority Critical patent/CN105545949B/en
Publication of CN105545949A publication Critical patent/CN105545949A/en
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Publication of CN105545949B publication Critical patent/CN105545949B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/02Sliding-contact bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/12Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
    • F16M11/14Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00Supporting structures for PV modules
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Photovoltaic Devices (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The invention discloses a photovoltaic spherical bearing rotating device for a flat uniaxial tracking support, and belongs to the field of flat uniaxial tracking supports. The device comprises a joint bearing, a ball head shaft pin and a flange; the joint bearing comprises a handle shoulder, an inner-ring ball head and an outer-ring bearing sleeve; the outer-ring bearing sleeve is fixed in the handle shoulder; the inner-ring ball head is embedded into the outer-ring bearing sleeve; the ball head shaft pin penetrates through the interior of the inner-ring ball head; the ball head shaft pin is provided with the flange and obliquely rotates in 360 degrees within an angle alpha by taking the x axis as a center line, and the angle alpha is 60-120 degrees. According to the device, the technical problems existing when an existing flat uniaxial tracking support rotating device is operated on mountainous regions of multiple gradients can be effectively solved, the structure is simple, the self-center regulating and self-balancing functions are achieved, the angle of a main beam of the tracking support can be automatically parallel to the ground gradient, and installation is very convenient and rapid.

Description

A kind of photovoltaic ball bearing slewing gear being applicable to flat uniaxial tracking bracket
Technical field
The present invention relates to a kind of photovoltaic ball bearing slewing gear being applicable to flat uniaxial tracking bracket, belong to flat uniaxial tracking bracket field.
Background technique
Along with greatly developing of photovoltaic industry, solar bracket is also in continuous change, the flat uniaxial tracking bracket scheme kind used in the market is more, but seldom there is the product being applicable to mountain region project, the product needed being applicable to level land project is made and is changed definitely and could install on mountain region, but, some problems are all more or less existed for these schemes.
For a mountain region photovoltaic project, the size of the mountain region gradient is often comparatively complicated, it not certain single gradient, existing flat uniaxial tracking bracket needs the gradient different according to mountain region to design one by one with the installation requirements at satisfied scene, design efforts would and on-site installation work amount all very large.
The rotary centerline such as, following the tracks of support girder in segmentation scheme is the axis of girder, rotary centerline is larger from system gravity linear distance, the throw of eccentric produced by gravity during rotation is larger, namely the additional moment produced by gravity is larger, the additional moment of frictional force generation is simultaneously also comparatively large, therefore needs larger external motivating force just can meet the job requirement of system.In order to overcome such problem, the reduction girder eccentricity of rotation of appearance of the prior art from flat uniaxial tracking bracket scheme obtain use, but the rotation connection structure of existing scheme middle girder structure adopts bearing pin scheme, rotate surface of contact and be cylndrical surface, the center line of cylinder is the rotary centerline of main beam structure, once rotation connection structure fixing after, the rotary centerline following the tracks of support main beam structure also will be defined, if infield be the mountain region of the multiple gradient time, then need to design corresponding rotation connection structure one by one according to the size of terrain slope, workload is big is difficult to the imagination, in addition, the program is when acclive earth's surface is installed, whole system is all overcome by the rigid connection at a certain or a few root post top along the weight component in girder direction, all weight components are more concentrated, the lateral force of column is unfavorable, and under hard contact, rotation can cause structural fatigue or occur serious wearing and tearing chronically.
Summary of the invention
The object of this invention is to provide a kind of photovoltaic ball bearing slewing gear being applicable to flat uniaxial tracking bracket, effectively can solve the technical problem existed when existing flat uniaxial tracking bracket slewing gear uses in the mountain region of the multiple gradient, this apparatus structure is simple, there is Self-aligning and Self-balancing, the angle of following the tracks of support girder will be automatically parallel with surface slope, and it is very convenient to install.
The technical solution adopted in the present invention comprises joint shaft bearing, bulb pivot pin 6, flange; Described joint shaft bearing comprises handle shoulder 2, inner ring bulb 4, race bearing cover 3; Described race bearing cover 3 is fixed in handle shoulder 2; Described inner ring bulb 4 is embedded in race bearing cover 3; Described bulb pivot pin 6 is inner through inner ring bulb 4; Described bulb pivot pin 6 is provided with flange 5; Described bulb pivot pin 6 in angle [alpha] centered by x-axis line make 360 ° of tilt rotation, angle [alpha] is 60 ° ~ 120 °.
Described flange is provided with 3, and wherein 2 are separately positioned on the two ends of bulb pivot pin 6, and another 1 is arranged on the top that handle takes on 2.
The flange that described bulb pivot pin 6 two ends are arranged is connected with anchor ear 8 by bolt.
Described anchor ear 8 is provided with 2.
Described 2 anchor ears 8 have been bolted girder 9, make the stress balance of photovoltaic ball bearing.
The parts that described joint shaft bearing can also make spherical pivot pin rotate with differing tilt angles for other.
Described joint shaft bearing is knee bulb joint bearing or straight-bar bulb joint bearing.
Described joint shaft bearing is the joint shaft bearing of other sphere-contact forms.
Flange joint in embodiments of the present invention above described handle shoulder 2 has arm 10; Described arm 10 is connected with column 12 by supporting plate 11.
In embodiments of the present invention, described column 12 has a motor and rotary reducer, described motor drives rotary reducer, and rotary reducer is connected with motor, thus reaches the object driving girder.
The present invention also provides the application of a kind of photovoltaic ball bearing slewing gear on flat uniaxial tracking bracket; When the gradient of the infield of flat uniaxial tracking bracket is the mountain region of x degree, the line angle controlling basic end face center during foundation construction is consistent with the mountain region gradient, and control capital is wired to x degree after column is installed, after girder and column top arm are connected, the flange takeed on by handle is installed on arm one by one, and during connection, the mounting distance of control handle shoulder is consistent; So far, the angle of inclination of flat uniaxial tracking bracket girder is then adjusted to x degree automatically by joint shaft bearing, and the α angle of joint shaft bearing will be adjusted to x degree automatically; Column has a motor and rotary reducer, rotary reducer is connected with motor, and motor drives rotary reducer, thus drives girder, and girder rotates around sun altitude under the effect of motor, and the angular range of rotation is ± 60 °.
A kind of photovoltaic ball bearing slewing gear provided by the invention can also be applied on oblique single shaft.
The described mounting point by adjustment photovoltaic ball bearing reaches tracking mounting system center of gravity line and overlaps with photovoltaic ball bearing center line, and the required driving force of tracking mounting system is reduced.
The invention has the beneficial effects as follows:
(1) adopt photovoltaic ball bearing can make a standard universal type of the product formation of flat uniaxial tracking bracket product as the rotation connection structure of flat uniaxial tracking bracket girder, significantly reduce design efforts would.This universal product can be installed on the mountain region of different gradient, and rotation connection structure has Self-aligning and Self-balancing, and installing the angle of following the tracks of support girder will be automatically parallel with surface slope, and it is very convenient to install.
(2) because the way of contact of photovoltaic ball bearing within the scope of random working angle is sphere-contact, therefore photovoltaic ball bearing can bear the axle power on random working angle direction, and this axle power transmits between contact sphere by both, by linkage structure, photovoltaic ball bearing is connected with girder, thus the component of flat uniaxial tracking bracket system gravity can be transferred uniformly into each root post, whole system is stressed more reasonable.
(3) because this photovoltaic ball bearing rotation friction is little, the arm of force of friction moment is also very short, and the additional moment produced by frictional force can be ignored.And the center of rotation of following the tracks of support girder is the position of center line of photovoltaic ball bearing, can overlaps with photovoltaic ball bearing center line by regulating the mounting point of photovoltaic ball bearing to reach the center of gravity line following the tracks of mounting system, reaching " zero is eccentric " state; So driving force required during system works is just very little, the specification of the motor that tracking support needs and rotary reducer is relatively little, and cost obtains and significantly reduces.
Accompanying drawing explanation
Fig. 1 is joint shaft bearing structural drawing.
Fig. 2 is photovoltaic spherical bearing arrangement structural representation of the present invention.
Fig. 3 is hooping structure schematic diagram of the present invention.
Fig. 4 is the application drawing of the present invention on flat uniaxial tracking bracket.
Fig. 5 is the side view of the present invention on flat uniaxial tracking bracket.
(the 1, first flange, 2, handle shoulder, 3, race bearing cover, 4, inner ring bulb, the 5, second flange, 6, bulb pivot pin, 7, three-flange, 8, cuff, 9, girder, 10, arm, 11, supporting plate, 12, column)
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1
The joint shaft bearing mentioned in the present invention is spherical bearing, and basic model is made up of the inside and outside circle with spherical slip sphere contact surface, sees Fig. 1.
As shown in Figure 2, it comprises joint shaft bearing, bulb pivot pin 6,3 flanges (1,5,7) to a kind of photovoltaic ball bearing slewing gear being applicable to flat uniaxial tracking bracket provided by the invention; Described joint shaft bearing comprises handle shoulder 2, inner ring bulb 4, race bearing cover 3; Described inner ring bulb 4 is embedded in race bearing cover 3; Described race bearing cover 3 is squeezed in handle shoulder 2 by lathe; Described bulb pivot pin 6 is inner through inner ring bulb 1, and its two ends are respectively arranged with 1 flange 5; Described bulb pivot pin 4 in angle [alpha] excursion centered by x-axis line make 360 ° of tilt rotation, angle [alpha] excursion is 60 ° ~ 120 °.Another flange is provided with above described handle shoulder 2;
Embodiment 2
Above-mentioned bulb pivot pin 6 can also for doing the link that differing tilt angles rotates.
Embodiment 3
Above-mentioned joint shaft bearing of stating is knee bulb joint bearing or straight-bar bulb joint bearing.
Embodiment 4
Above-mentioned joint shaft bearing is the joint shaft bearing of other sphere-contact forms.
Be below the embody rule of the present invention on a kind of flat uniaxial tracking bracket;
A flange 5 on handle shoulder 2 of the present invention is connected with arm 10; Reach the connection of apparatus of the present invention and column 12; Described arm 10 is connected with column 12 by supporting plate 11; Bulb pivot pin 6 two ends upper flange in the present invention has been bolted 2 anchor ears 8; Described 2 anchor ears 8 are connected with girder 9 by bolt;
When the gradient of the infield of flat uniaxial tracking bracket is the mountain region of x degree, the line angle controlling basic end face center during foundation construction is consistent with the mountain region gradient, and control capital is wired to x degree after column is installed, after the tie point of girder and column top link is connected, only need on flange 5 link that is installed to column top one by one on the handle of photovoltaic ball bearing shoulder 2 and arm 10, answer during connection control handle take on 2 mounting distance consistent.So far, the angle of inclination of flat uniaxial tracking bracket girder is then adjusted to x degree automatically by photovoltaic ball bearing, and namely in Fig. 2, the α angle of photovoltaic ball bearing will be adjusted to x degree automatically, and Fig. 4 is shown in by the schematic diagram after installation.
Each row follows the tracks of column a motor and rotary reducer, and motor drives rotary reducer, and rotary reducer is connected with motor, thus reaches the object driving girder.To follow the tracks of the girder 9 of support to rotate around sun altitude under the effect of motor, the angular range of rotation can reach ± and 60 °.This connection scheme makes the main beam structure of flat uniaxial tracking bracket have the function of force balance, self-aligning and automatic adjusting angle, whole system is stressed more reasonable, and the product of a whole set of flat uniaxial tracking bracket has versatility, can meet and install on the mountain region of the multiple gradient.
The present invention adopts photovoltaic ball bearing slewing gear can make a standard universal type of the product formation of flat uniaxial tracking bracket product as the rotation connection structure of flat uniaxial tracking bracket girder, significantly reduces design efforts would.
Although the present invention with preferred embodiment openly as above; but it is also not used to limit the present invention, any person skilled in the art, without departing from the spirit and scope of the present invention; all can do various changes and modification, what therefore protection scope of the present invention should define with claims is as the criterion.

Claims (10)

1. be applicable to a photovoltaic ball bearing slewing gear for flat uniaxial tracking bracket, it is characterized in that: comprise joint shaft bearing, bulb pivot pin, flange; Described joint shaft bearing comprises handle shoulder, inner ring bulb, race bearing cover; Described race bearing cover is fixed in handle shoulder; Described inner ring bulb is embedded in race bearing cover; Described bulb pivot pin is inner through inner ring bulb; Described bulb pivot pin is provided with flange; Described bulb pivot pin in angle [alpha] centered by x-axis line make 360 ° of tilt rotation, angle [alpha] is 60 ° ~ 120 °.
2. a kind of photovoltaic ball bearing slewing gear being applicable to flat uniaxial tracking bracket according to claim 1, be characterised in that, described flange is provided with 3, and wherein 2 are separately positioned on the two ends of bulb pivot pin, another 1 top being arranged on handle and takeing on.
3. a kind of photovoltaic ball bearing slewing gear being applicable to flat uniaxial tracking bracket according to claim 1, is characterised in that, the flange that described bulb pivot pin two ends are arranged is connected with anchor ear by bolt.
4. a kind of photovoltaic ball bearing slewing gear being applicable to flat uniaxial tracking bracket according to claim 3, be characterised in that, described anchor ear is provided with 2.
5. a kind of photovoltaic ball bearing slewing gear being applicable to flat uniaxial tracking bracket according to claim 4, be characterised in that, described 2 anchor ears have been bolted girder.
6. a kind of photovoltaic ball bearing slewing gear being applicable to flat uniaxial tracking bracket according to claim 1, is characterised in that, described joint shaft bearing is the parts that other can make spherical pivot pin and rotate with differing tilt angles.
7. a kind of photovoltaic ball bearing slewing gear being applicable to flat uniaxial tracking bracket according to claim 1, is characterised in that, described joint shaft bearing is knee bulb joint bearing or straight-bar bulb joint bearing.
8. a kind of photovoltaic ball bearing slewing gear being applicable to flat uniaxial tracking bracket according to claim 1, be characterised in that, described joint shaft bearing is the joint shaft bearing of sphere-contact form.
9. application rights requires the arbitrary described application of photovoltaic ball bearing slewing gear on flat uniaxial tracking bracket of 1-8, it is characterized in that: the Flange joint on handle shoulder has arm; Described arm is connected with column by supporting plate; When the gradient of the infield of flat uniaxial tracking bracket is the mountain region of x degree, the line angle controlling basic end face center during foundation construction is consistent with the mountain region gradient, and control capital is wired to x degree after column is installed, after girder and column top arm are connected, the flange takeed on by handle is installed on arm one by one, and during connection, the mounting distance of control handle shoulder is consistent; So far, the angle of inclination of flat uniaxial tracking bracket girder is then adjusted to x degree automatically by joint shaft bearing, and the α angle of joint shaft bearing will be adjusted to x degree automatically; Column has a motor and rotary reducer, rotary reducer is connected with motor, and motor drives rotary reducer, thus drives girder, and girder rotates around sun altitude under the effect of motor, and the angular range of rotation is ± 60 °.
10. an application rights requires the arbitrary described application of photovoltaic ball bearing slewing gear on oblique uniaxial tracking bracket of 1-8.
CN201610107170.9A 2016-02-26 2016-02-26 A kind of photovoltaic ball bearing tumbler and its application process Expired - Fee Related CN105545949B (en)

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Application Number Priority Date Filing Date Title
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CN105545949B CN105545949B (en) 2017-10-31

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106533343A (en) * 2016-12-08 2017-03-22 苏州聚晟太阳能科技股份有限公司 Photovoltaic bracket applicable to mountain topography
CN107342732A (en) * 2017-08-24 2017-11-10 杨玄星 Drying device based on solar energy
CN109058697A (en) * 2018-06-22 2018-12-21 南方科技大学 A kind of seismic detector leveling retaining mechanism
WO2023141355A1 (en) * 2022-01-24 2023-07-27 Nextracker Llc Bearing housing assembly for solar trackers
CN116892575A (en) * 2023-09-11 2023-10-17 河北佳顺不锈钢轴承制造有限公司 Adjustable center type bearing seat

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1749881A1 (en) * 1989-10-30 1992-07-23 Крымская Экспериментальная Солнечная Электростанция Optical element
CN201386742Y (en) * 2009-04-03 2010-01-20 昆明绿电科技有限公司 Pi-shaped inverted universal joint bearing seat
CN202100905U (en) * 2011-06-10 2012-01-04 神华集团有限责任公司 Bracket for horizontal single-axle tracking system
US20140105673A1 (en) * 2012-10-17 2014-04-17 Luanne Moore Ball Bearing Tracker Assembly
CN203722556U (en) * 2013-12-24 2014-07-16 昆明科曼迪科技开发有限公司 Single-panel single-oblique-axle sun-tracking rotating rack
CN204425241U (en) * 2014-12-30 2015-06-24 周志佐 A kind of solar cell board mounting stand
CN104753452A (en) * 2013-12-27 2015-07-01 内蒙古科盛太阳能科技有限责任公司 Solar two-dimensional tracking support
CN205450793U (en) * 2016-02-26 2016-08-10 王艳 Photovoltaic ball bearing rotating device suitable for flat single -axis tracking support

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1749881A1 (en) * 1989-10-30 1992-07-23 Крымская Экспериментальная Солнечная Электростанция Optical element
CN201386742Y (en) * 2009-04-03 2010-01-20 昆明绿电科技有限公司 Pi-shaped inverted universal joint bearing seat
CN202100905U (en) * 2011-06-10 2012-01-04 神华集团有限责任公司 Bracket for horizontal single-axle tracking system
US20140105673A1 (en) * 2012-10-17 2014-04-17 Luanne Moore Ball Bearing Tracker Assembly
CN203722556U (en) * 2013-12-24 2014-07-16 昆明科曼迪科技开发有限公司 Single-panel single-oblique-axle sun-tracking rotating rack
CN104753452A (en) * 2013-12-27 2015-07-01 内蒙古科盛太阳能科技有限责任公司 Solar two-dimensional tracking support
CN204425241U (en) * 2014-12-30 2015-06-24 周志佐 A kind of solar cell board mounting stand
CN205450793U (en) * 2016-02-26 2016-08-10 王艳 Photovoltaic ball bearing rotating device suitable for flat single -axis tracking support

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106533343A (en) * 2016-12-08 2017-03-22 苏州聚晟太阳能科技股份有限公司 Photovoltaic bracket applicable to mountain topography
CN106533343B (en) * 2016-12-08 2019-03-29 苏州聚晟太阳能科技股份有限公司 A kind of photovoltaic bracket being adapted to mountain topography
CN107342732A (en) * 2017-08-24 2017-11-10 杨玄星 Drying device based on solar energy
CN109058697A (en) * 2018-06-22 2018-12-21 南方科技大学 A kind of seismic detector leveling retaining mechanism
CN109058697B (en) * 2018-06-22 2023-09-05 南方科技大学 Leveling and locking mechanism of seismograph
WO2023141355A1 (en) * 2022-01-24 2023-07-27 Nextracker Llc Bearing housing assembly for solar trackers
CN116892575A (en) * 2023-09-11 2023-10-17 河北佳顺不锈钢轴承制造有限公司 Adjustable center type bearing seat
CN116892575B (en) * 2023-09-11 2024-01-09 河北佳顺不锈钢轴承制造有限公司 Adjustable center type bearing seat

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Granted publication date: 20171031

Termination date: 20190226