CN209265276U - A kind of drawing-type elastic damping mechanism applied to solar tracking bracket - Google Patents
A kind of drawing-type elastic damping mechanism applied to solar tracking bracket Download PDFInfo
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- CN209265276U CN209265276U CN201822104704.XU CN201822104704U CN209265276U CN 209265276 U CN209265276 U CN 209265276U CN 201822104704 U CN201822104704 U CN 201822104704U CN 209265276 U CN209265276 U CN 209265276U
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- rope
- damping
- reel
- damper
- rotary shaft
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Abstract
The utility model discloses a kind of drawing-type elastic damping mechanism applied to solar tracking bracket, which is co-axially mounted unidirectional damping wheel, elastical retraction wheel and reel.When the rope on reel is quickly pulled outward, unidirectional damping wheel provides speed limit damping torque.When external traction force disappears or is less than elastic backrush power, reel snap back under elastic gyroscope wheel and one-way mechanism effect is turned round, and hauls.Elastic damping mechanism and moveable cord end are separately fixed on the outside of the fixed part of tracking bracket and the rotary part far from spindle central.When tracking bracket quickly outside rope for traction under wind load effect, damper can limit traction point movement speed, to reduce the shock loading of bracket.When external force disappears, flexible drive mechanism can quickly recycle rope again and keep tight state, to cope with external wind load effect next time.The mechanism has damping stroke long, the big remarkable advantage of end damping torque.
Description
Technical field
The utility model belongs to sun tracker technical field, is related to a kind of drawing-type applied to solar tracking bracket
Elastic damping mechanism.
Background technique
Tracing type photovoltaic bracket is the important component of solar energy photovoltaic generator, tracks bracket by adjust automatically
Operating angle, the photovoltaic battery panel installed on bracket can be made to meet the incident orientation to sunray as far as possible, to reach
Photovoltaic battery panel is set to maximize the purpose for receiving solar radiation energy.
The twin shaft photovoltaic tracking system cost of perfect tracking solar motion is higher, can be right in order to improve investment return ratio
It is simplified, as soon as only very fast to wherein pace of change, biggish rotary shaft of range carries out single tracking, this constitutes institute
The uniaxial photovoltaic tracking system of meaning.
To reduce system cost, photovoltaic tracking bracket generallys use relatively simple coarse transmission device and light-weighted branch
Frame structure, this results in the flexible deformation of entire bracket and drive gap all bigger.Usually all there is adjustment electricity in tracking bracket
The rotary shaft of pond plate normal direction, when wind effect is when photovoltaic tracking bracket, bracket can be in rotary shaft free clearance and steel knot
Violent pendulum shake occurs within the scope of structure elastic deformation.This violent pendulum shake can cause shocking damage to solar panel, and then cause
A series of problems, such as solar panel crack and bolt looseness.This pendulum shake can also seriously damage the gear train of transmission mechanism simultaneously,
Lead to gear wear or damage.
Currently solve the problems, such as this important method pushes and pulls rod-type hydraulic damper first is that increasing for photovoltaic tracking bracket,
This damper has a housing oil cylinder, there is the push-pull rod with piston among oil cylinder, and piston is by the damping oil in oil cylinder
It is divided into two parts.Two parts damping oil is communicated by orifice valve, and damping oil passes through small among orifice valve when push-pull rod moves
It mutually flows in hole.When push-pull rod movement velocity is lower, damping oil flow rate is relatively low, and the flowing of damping oil has substantially no effect on push-and-pull
The movement of bar.When push-pull rod is by moment impact load, damping hole limits damping oil flow rate, and then limits push-pull rod
Movement velocity, realize damping speed limiting function of push-pull rod during push-and-pull.
After installation push-and-pull rod-type hydraulic damper, when solar panel rotates pendulum shake, damper provides additional limit
Fast damping force reduces the slew rate of bracket and absorbs pendulum shake energy, to reduce wind load damage.
Main problem existing for current push-and-pull rod-type antiwind resistance Buddhist nun mechanism is that the stroke of push-and-pull rod-type damper is shorter.For
Guarantee rotation angle range in small stroke, causes the installation support arm of damper shorter.Since support arm is too short, damping
The damping torque that device can apply is smaller, and wind resistance effect is undesirable.
Utility model content
The purpose of the utility model is to provide a kind of drawing-type elastic damping mechanisms applied to solar tracking bracket, solve
Existing photovoltaic tracking bracket push-and-pull rod-type antiwind resistance Buddhist nun mechanism it is existing because actuating length it is short caused by damp that the arm of force is short, wind resistance
The problem of effect difference.
The utility model is the technical scheme adopted is that a kind of drawing-type elastic damping machine applied to solar tracking bracket
Structure is sequentially coaxially equipped with damper, reel and scrollwork including the rotary shaft being mounted on damping mechanism frame in rotary shaft
Spring mechanism is wound with rope on reel.
The utility model is also characterized by:
Single direction ratchet is installed between damper and rotary shaft, when outside rope for traction, rope is released in reel rotation,
Damper provides speed limit damping to rotary shaft by single direction ratchet, while accumulation of energy is tightened by scroll spring mechanism；When the outside of rope
Traction force disappear or less than scroll spring mechanism spring tightening force when, reel scroll spring mechanism effect under turn round income
Rope.During rope receives on reel, single direction ratchet disconnects the connection between rotary shaft and damper, and damper is not
Rotation does not also provide damping.
The upper end of damping mechanism frame is arranged in parallel with left guide roller and right guide roller, and rope is from left guide roller and right guiding
It is pulled out between roller, when the direction of draw of rope changes, left guide roller and right guide roller can be respectively in the left and right of rope two
Side provides guiding role.
The utility model has the beneficial effects that a kind of drawing-type elasticity applied to solar tracking bracket of the utility model hinders
Buddhist nun mechanism, unidirectional drawing damping and automatic elastic backrush feature with rope.When applied to photovoltaic tracking bracket wind resistance, by rope
The biggish stroke of rope can expand the movement torque arm length of speed limiting mechanism, to significantly improve speed limit wind resistance effect.While by
It remains that rope is in tensioning state in elastic unreeling mechanism, influence of the mechanical play to wind resistance effect can be eliminated.
Detailed description of the invention
Fig. 1 is a kind of main view of the drawing-type elastic damping mechanism applied to solar tracking bracket of the utility model；
Fig. 2 is a kind of shaft side figure of the drawing-type elastic damping mechanism applied to solar tracking bracket of the utility model；
Fig. 3 is a kind of drawing-type elastic damping mechanism applied to solar tracking bracket of the utility model on photovoltaic bracket
The structural schematic diagram of bilateral installation；
Fig. 4 is a kind of drawing-type elastic damping mechanism applied to solar tracking bracket of the utility model under photovoltaic bracket
The structural schematic diagram of portion's swing arm installation.
In figure, 1. damping mechanism frames, 2. rotary shafts, 3. dampers, 4. reels, 5 scroll spring mechanisms, 6. unidirectional spine
Wheel, 7. ropes, 8. right guide rollers, 9. left guide rollers, 10. left elastic damping mechanisms, 11. right elastic damping mechanisms, 12. left ropes
Rope, 13. right ropes, 14. left traction points, 15. right traction points, 16. rack shafts, 17. solar panel support beams, 18. fixed branch
Support structure, 19. live spindles, 20. lower elastic damping mechanisms, 21. support posts, 22. lower ropes, 23. rotary swinging arms, under 24.
Traction point, 25. photovoltaic battery panels.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of drawing-type elastic damping mechanism applied to solar tracking bracket of the utility model, as shown in Figure 1, 2, including
The damping mechanism frame 1 of U-shaped is provided with rotary shaft 2 in damping mechanism frame 1, and the both ends of rotary shaft 2 are respectively from damping mechanism frame
Two side blocks of frame 1 are stretched out, one end of rotary shaft 2 keep off on the left of damping mechanism frame 1 stretch out after be coaxially connected with it is revolving
Viscous damper 3, the other end of rotary shaft 2 are coaxially connected with scroll spring mechanism after keeping off stretching on the right side of damping mechanism frame 1
5, reel 4 is coaxially socketed in rotary shaft 2, and rope 7 is wound on reel 4, when rotary shaft 2 rotates clockwise, rope 7
Recycling is wrapped on reel 4.When the end of rope 7 pulls extraction, reel 4 drives rotary shaft 2 to rotate counterclockwise.Damping
The upper end of institutional framework 1 is equipped with right guide roller 8 and left guide roller 9 in parallel, and rope 7 is drawn between right guide roller 8 and left guide roller 9
Out；When the direction of draw of rope 7 changes, right guide roller 8 and left guide roller 9 can be mentioned in the left and right sides of rope 7 respectively
For the rotation guiding role of traction force.
The basic diameter of reel 4 is 30mm in the present embodiment, and the diameter of rotary shaft 2 is 10mm；Rope 7 use diameter for
The wirerope of 3mm.
Damper 3 uses rotary damper structure, and damper 3 includes two parts of inner ring and outer ring, opposite in Internal and external cycle
Damping torque is 0.5N.m when revolving speed is less than 1Rpm, damping torque rapid increase after revolving speed is greater than 1Rpm, after being greater than 1.8Rpm
Damping torque increases to 10N.m.
The outer ring of damper 3 and damping mechanism frame 1 are affixed, are equipped with unidirectional spine between 3 inner ring of damper and rotary shaft 2
Wheel 6, when rope 7 is extracted out outward, and reel 4 drives the rotary shaft 2 affixed with it to rotate counterclockwise, the locking rotation of single direction ratchet 6
The positional relationship of shaft 2 and 3 inner ring of damper, reel 4 are rotated with 3 inner ring of fluctuation dampers, and damper 3 provides resistance to shaft 2
Buddhist nun's torque.When rotary shaft 2 rotates clockwise, single direction ratchet 6 disconnects the connection of rotary shaft 2 and 3 inner ring of damper, and rotary shaft 2 is revolved
Turn, 3 inner ring of damper is failure to actuate.
Damper 3 is speed limit type rotary damper, and when Internal and external cycle relative rotation speed is lower than preset value, damper does not provide resistance
Buddhist nun's power or damping force are smaller, and when revolving speed is higher than preset value, damping torque is promoted to rated value.
Scroll spring mechanism 5 uses existing scroll spring structure, including shell, scroll spring and internal shaft, scrollwork
Including spring socket in portion's shaft, scroll spring can provide the elastic flywheel moment of average 0.3N.m after tightening.Rotary shaft 2
It is coaxially connected with shaft inside scroll spring.When rotary shaft 2 rotates counterclockwise, scroll spring is tightened by continued compression.When outer
When portion's stretching action stops, scroll spring can apply the elastic flywheel moment of 0.3N.m by turning rotational axial shaft 2 inside it,
Rotary shaft 2 is rotated clockwise to be tensioned cord outside 7.When the rope on reel 4 is all pulled out, scroll spring mechanism
5 also reach its most compressed state.
The installation site for exchanging damper 3 and scroll spring mechanism 5 does not influence the feature of this embodiment.
Exchanging function when rotary shaft 2 rotates counterclockwise is to nor affect on this embodiment feature clockwise.
A kind of drawing-type elastic damping mechanism applied to solar tracking bracket of the utility model is in tracking bracket wind resistance
Following two application form can be used:
The bilateral drawing mode of 1 pair of damper of embodiment
As shown in figure 3, being equipped with left elastic damping mechanism 10 and right bullet on the fixed support structure 18 of photovoltaic tracking bracket
(left elastic damping mechanism 10 and right elastic damping mechanism 11 are the elastic damping machine in the utility model to property damping mechanism 11
Structure), 18 upper mounting bracket shaft 16 of fixed support structure, solar panel support beam 17 can be rotated around rack shaft 16, with
Track solar motion.17 total length 4m of solar panel support beam in the present embodiment.Left traction point 14 and right traction point 15 are apart from branch
Frame shaft 16 is 1.5m.The radius of the position shown in Fig. 3 of reel 4 is about 35mm, and 7 drawing velocity of rope is less than 3.66mm/s
When, damping torque 0.5N.m, the damping tension on rope 7 is 14.3N.It is greater than when wind load acts on lower 7 drawing velocity of rope
When 6.6mm/s, damper 3 reaches specified damping torque 10N.m, and the available damping tension of rope 7 is about 286N at this time.
Left elastic damping mechanism 10 is connected on the left traction point 14 of support beam 17 by its left rope 12, right elasticity resistance
Buddhist nun mechanism 11 is connected on the right traction point 15 of support beam 17 by its right rope 13.Fig. 3 show solar panel support beam
17 drive low speed clockwise or the inverse time in this state in horizontal or middle position wind resistance state, rack shaft 16 by speed reducer
Needle rotates Shi Zuo elastic damping mechanism 10 and the available drawing damping force of right elastic damping mechanism 11 is 14.3N.Left rope
12 and right rope 13 be tensioned under the action of scroll spring mechanism 5 with the pulling force of about 8.6N, since left and right tensile force size is identical
It is contrary, the rotation torque of rack shaft approximate can be offset.
When wind load acts on solar panel support beam 17, cause solar panel support beam 17 in mechanical clearance and flexible deformation
When Quick winding rack shaft 16 rotates clockwise in amount range, left traction point 14 drives left rope 12 to be greater than the speed of 6.6mm/s
Degree quickly extraction, left elastic damping mechanism 10 are that left rope 12 provides the damping tension of 286N, slow down solar panel support beam 17
Rotation speed.Under state shown in Fig. 3, left rope 12 and the angle of solar panel support beam 17 are 60 degree, and damping tension generates
Damping torque be about 372N.m.The right rope 13 that right traction point 15 connects at this time relaxes, inside right elastic damping mechanism 11
Scroll spring mechanism 5 keeps its tensioning with the right rope 13 of the pulling force recycling relaxation of 8.6N, in order in solar panel support beam
It is provided in time during 17 rebounds and draws damping.
Wind load acts on solar panel support beam 17, causes solar panel support beam 17 in mechanical clearance and elastic deformation amount
Course of work when quickly rotating counterclockwise in range rotates similar with clockwise.
Acting regularity summarization is that, when 16 low speed rotation of rotary shaft, left and right Liang Ge elastic damping mechanism only provides very little
Damping force, when wind load, which acts on lower support beam, quickly swings simultaneously the quickly left rope 12 of pull and right rope 13, two bullets in left and right
Property damping mechanism will provide biggish damping traction force respectively.
The single damper swing arm of embodiment 2 pulls mode
As shown in figure 4,21 top of support post of photovoltaic tracking bracket is equipped with live spindle 19, pacify in live spindle 19
The photovoltaic battery panel 25 of dress can be rotated around live spindle 19, to track solar motion.Support post 21 in this embodiment
Height is 1.4m.Rotary swinging arm 23 is also equipped in live spindle 19, when photovoltaic battery panel 25 is horizontal, rotary swinging arm 23 is vertical
Downwards, the lower end of rotary swinging arm 23 is provided with lower traction point 24.Lower traction point 24 and 19 center of live spindle in this embodiment
The distance between point is 1000mm.(the lower elasticity resistance of lower elastic damping mechanism 20 being mounted in the fixation member of photovoltaic bracket lower part
Buddhist nun mechanism 20 is the elastic damping mechanism in the utility model) it is connected under 23 lower end of rotary swinging arm and is led by its lower rope 22
It draws on point 24.When photovoltaic battery panel 25 is horizontal, rotary swinging arm 23 vertically downward when, lower 24 position of traction point is in minimum point, together
At present the rope outlet of traction point 24 and lower elastic damping mechanism 20 is closely located to minimum value, the lower lower elasticity resistance of the income of rope 22
The length of Buddhist nun mechanism 20 is maximum.When live spindle 19 is rotated away from horizontal position, rotary swinging arm 23 accordingly rotates, lower traction point
24 positions are improved, and lower rope 22 is pulled stretching.
In this embodiment, when photovoltaic battery panel 25 is in horizontal wind resistance position, movement rope takes in reel 4 completely,
4 radius of reel is about 40mm at this time.Under horizontal wind resistance position, when 7 drawing velocity of rope is less than 4.2mm/s, damper damping
Torque is 0.5N.m, and the damping tension on rope 7 is 12.5N.When 7 drawing velocity of rope is greater than 7.56mm/s, damper 3
Reach damping torque 10N.m, the available damping tension of rope 7 is about 250N at this time, since torque arm length is equal to lower traction point
24 arrive the distance 1000mm of 19 centre of gyration of live spindle, and the damping torque of damping system to tracking bracket offer is 250N.m.
When live spindle 19 rotates under speed reducer driving from horizontal wind resistance position low speed to drift angle augment direction with normal
When tracking the sun, lower 22 drawing velocity of rope is less than 4.2mm/s, and the rotary damper in lower elastic damping mechanism 20 only provides
The damping torque of 0.5N.m and the elastic tightening torque of 0.3N.m.When live spindle 19 reduces direction to 25 drift angle of photovoltaic battery panel
When revolution, lower elastic damping mechanism 20 only provides the elastic tightening torque of 0.3N.m.
When live spindle 19 is under wind load effect, from horizontal position quickly to inclined in mechanical play and regime of elastic deformation
When angle augment direction rotates, lower traction point 24 is with rope 22 under the speed pull greater than 7.56mm/s, lower elastic damping mechanism 20
(lower elastic damping mechanism 20 is a kind of drawing-type elastic damping machine applied to solar tracking bracket provided by the utility model
Structure) in rotary damper can provide the damping torque of 10N.m and the elastic tightening torque of 0.3N.m, the traction force of conversion is
The speed limit torque of 257.5N, from damping system to tracking bracket offer are 257.5N.m.When the revolution of wind load disappearance rack elasticity, lower rope
When the relaxation of rope 22, the scroll spring mechanism inside lower elastic damping mechanism 20, with the loose lower rope 22 of the pulling force recycling of 7.5N
Its tensioning is kept, in order to provide damping tension in time when solar panel next time is far from horizontal position.
Movement regularity summarization is, when live spindle 19 is rotated from horizontal wind resistance position low speed to drift angle augment direction with normal
When tracking the sun, lower rope 22 is slowly pulled out, and lower elastic damping mechanism 20 does not provide damping force；When live spindle 19 is made in wind load
Under, when quickly being rotated from horizontal position to drift angle augment direction, lower 22 drawing velocity of rope transfinites, lower elastic damping mechanism 20
Damping tension is provided to limit main shaft deflection speed.When live spindle 19 is rotated from drift angle non-zero status to horizontal zero drift angle state
When, lower rope 22 is recycled by lower elastic damping mechanism 20, and unidirectional damping wheel does not provide damping during this.
In above-mentioned two embodiment, elastic damping mechanism is mounted on bracket fixture portions point, and moveable cord end is solid
It is scheduled on rotary part outside of the tracking bracket far from spindle central.Exchange the installation of elastic damping mechanism and removable cord end
Position, which does not influence drawing process in above-described embodiment, damping, and elasticity turns round undamped important feature, therefore also belongs to this reality
Apply the range that example is covered.
Wind load acts on the power and energy of tracking bracket in examples detailed above, is finally damped device and absorbs and in a manner of thermal energy
It dissipates.
Claims (3)
1. a kind of drawing-type elastic damping mechanism applied to solar tracking bracket, which is characterized in that including being mounted on damping machine
Rotary shaft (2) on structure frame (1) is sequentially coaxially equipped with damper (3), reel (4) and scroll spring in rotary shaft (2)
Mechanism (5) is wound with rope (7) on reel (4).
2. a kind of drawing-type elastic damping mechanism applied to solar tracking bracket according to claim 1, feature exist
In, single direction ratchet (6) are installed between the damper (3) and rotary shaft (2), when outside rope for traction (7), reel
(4) rope (7) are released in rotation, and damper (3) provides speed limit damping, while scrollwork bullet to rotary shaft (2) by single direction ratchet (6)
Accumulation of energy is tightened by spring mechanism (5)；When the external traction force disappearance of rope (7) or less than the spring tightening force of scroll spring mechanism (5)
When, reel (4) revolution income rope (7), rope (7) in the case where scroll spring mechanism (5) act on receive the process of reel (4)
In, single direction ratchet (6) disconnects the connection between rotary shaft (2) and damper (3), and damper (3), which does not rotate, does not also provide damping.
3. a kind of drawing-type elastic damping mechanism applied to solar tracking bracket according to claim 1, feature exist
In the upper end of the damping mechanism frame (1) is arranged in parallel with right guide roller (8) and left guide roller (9), and rope (7) is led from the right side
It is passed through between roller (8) and left guide roller (9), when rope (7) direction of draw changes, right guide roller (8) and left guiding
Roller (9) can provide the guiding role of rotation in the left and right sides of rope (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822104704.XU CN209265276U (en) | 2018-12-14 | 2018-12-14 | A kind of drawing-type elastic damping mechanism applied to solar tracking bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822104704.XU CN209265276U (en) | 2018-12-14 | 2018-12-14 | A kind of drawing-type elastic damping mechanism applied to solar tracking bracket |
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| Publication Number | Publication Date |
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| CN209265276U true CN209265276U (en) | 2019-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822104704.XU Active CN209265276U (en) | 2018-12-14 | 2018-12-14 | A kind of drawing-type elastic damping mechanism applied to solar tracking bracket |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912507A (en) * | 2019-11-22 | 2020-03-24 | 西安理工大学 | Swing arm compensation type driving rope compensation tensioning mechanism and design method thereof |
| WO2023071830A1 (en) * | 2021-10-28 | 2023-05-04 | 上海施步新能源科技有限公司 | Solar bracket provided with damping mechanism |
-
2018
- 2018-12-14 CN CN201822104704.XU patent/CN209265276U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912507A (en) * | 2019-11-22 | 2020-03-24 | 西安理工大学 | Swing arm compensation type driving rope compensation tensioning mechanism and design method thereof |
| CN110912507B (en) * | 2019-11-22 | 2022-08-16 | 西安理工大学 | Swing arm compensation type driving rope compensation tensioning mechanism and design method thereof |
| WO2023071830A1 (en) * | 2021-10-28 | 2023-05-04 | 上海施步新能源科技有限公司 | Solar bracket provided with damping mechanism |
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