CN104847099B - Emergency protection device for tower maintenance and construction platform - Google Patents
Emergency protection device for tower maintenance and construction platform Download PDFInfo
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- CN104847099B CN104847099B CN201510246120.4A CN201510246120A CN104847099B CN 104847099 B CN104847099 B CN 104847099B CN 201510246120 A CN201510246120 A CN 201510246120A CN 104847099 B CN104847099 B CN 104847099B
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- tower
- claw
- operation platform
- fixed cover
- slip cap
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Abstract
The invention discloses an emergency protection device for a tower maintenance and construction platform. The emergency protection device comprises a fixed sleeve arranged on a construction table circumferentially surrounding a tower. A sliding sleeve capable of moving along the axis of the fixed sleeve is arranged in the fixed sleeve. The sliding sleeve and the fixed sleeve are connected through a drive rod. One end of the sliding sleeve extends outside the fixed sleeve and provided with a clamping claw and a distance probe. A gap is arranged between the clamping claw and the wall surface of the tower under normal circumstances. The clamping claw swings to grip the tower to avoid accidents when the construction table is in emergency situations of falling and the like or needs to be suspended for operations, and the clamping claw is reset when the failure is removed or the construction table needs to be moved. The emergency protection device for the tower maintenance and construction platform is simple in structure and capable of greatly improving the safety factor of wind power tower maintenance construction.
Description
Technical field
The invention belongs to wind-power tower and safeguard equipment safety field, be specifically related to a kind of safeguard for tower and
The emergency protective device of operation platform.
Background technology
The long-term wind of wind-power tower, Exposure to Sunlight, drench with rain, even in the natural environment of the invasion and attack of salt fog, sand and dust,
The application being easily caused iron and steel tower drum outer wall is stained, peeling paint, corrosion.Therefore often need after a while
Safeguarded.
Traditional wind-power tower maintenance mode is mainly attached by safeguarding that workmen is suspended in tower by rope
Closely carrying out, this mode working performance is relatively low, labor intensity big, workmen is the most uncomfortable, to construction
The body constitution of personnel and psychological diathesis have a high requirement, therefore, in recent years since, it is proposed that multiple
The operation platform of automatic lifting is for the maintenance construction of wind-power tower or to tower top transport article, to carrying
High workload efficiency and safety, the labor intensity of reduction staff.
Owing to wind-power tower is up to tens of rice, rice the most up to a hundred, the maintenance construction to it belongs to work high above the ground,
And in work progress, except the weight of operation platform self, also include workmen, equipment, consumption
Materials etc. weigh hundreds of kilograms and obtain load, therefore, not only require the climbing ability safeguarding operation platform extremely
Strictly, the most high to its safety requirements in operation process, the emergencies such as unexpected tenesmus once occur
And take appropriate measures the most in time, it is easy to there is life, the major accident of property safety.
Therefore, developing one prevents wind-power tower maintenance and operation platform from occurring accidental falling thing at work
Therefore protection device have great importance.
Summary of the invention
Safeguarding and the emergency protective device of operation platform it is desirable to provide a kind of for tower, this is urgent
Protection device can not only be used for being locked by operation platform in the case of operation platform occurs unexpected tenesmus in lifting process
The protection device being scheduled in tower, it is possible to provide tower for platform during platform hovering as in work progress
Grasp, drastically increase wind-power tower safeguard construction safety coefficient.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of safeguard and the emergency protective device of operation platform for tower, described operation platform around tower,
It is structurally characterized in that, equipped with least one set grasping mechanism on described operation platform, often group grasping mechanism includes
The fixed cover being connected with operation platform, is partially disposed in fixed cover and can be relatively fixed set length direction reciprocal
The slip cap of movement；Described slip cap stretches out fixed cover, and the external part of slip cap towards one end of tower
Equipped with claw, there is gap in described claw when operation platform normally works and between tower, when construction is flat
Platform tenesmus time this claw counter-clockwise swing and contact braking with tower, this claw and can drive claw to swing
Drive mechanism be connected.
Thus, when operation platform generation emergency drops, claw is at the driving lower swing of driving means
And contact with described tower, thus realize brake hard, when normally working, it is possible to as in work progress
The grasp to tower is provided for platform during platform hovering.
It is below the technical scheme of further improvement of the present invention:
Described drive mechanism includes extension spring and electromagnetic draw bar；One end of described extension spring is connected with claw, and this draws
The other end of spring is connected with the external part of slip cap；One end of described electromagnetic draw bar is connected with claw, this electricity
The other end of magnetic pull bar is connected with the external part of slip cap；Described claw is hinged phase with the external part of slip cap
Connect and this claw can rotate around pin joint.
The position that described claw contacts with tower may is provided with changeover portion and friction section, described changeover portion outer surface
And the distance between the center of rotation of claw less than between friction section outer surface and the center of rotation of claw away from
From.Namely changeover portion to contact the position of tower at first the shortest with the distance of shaft centre line, finally contact tower
Position the longest with the distance of shaft centre line.
Described changeover portion is the lift section of the cam with described shaft centerline as center of rotation.
Described operation platform is fixedly linked with fixed cover；Described claw is by the external part of rotating shaft with slip cap
Being hinged and connected, this claw can rotate around the axis；Be provided with on the upside of described shaft centerline connection slip cap with
The described extension spring of claw, is provided with described electromagnetic draw bar on the downside of described shaft centerline.
The axis of described slip cap and tower axis are in same plane, and the axis of this slip cap
Between line and tower axis, angle is constant；The angle of the centrage of described fixed cover and the bus of tower
Tangent value is more than the inverse of the friction coefficient mu between described claw and tower wall.
Described drive mechanism includes extension spring and electromagnetic draw bar；One end of described extension spring is connected with operation platform,
The other end of this extension spring is connected with fixed cover；One end of described electromagnetic draw bar is connected with operation platform, and this draws
The other end of spring is connected with fixed cover；Described claw is fixedly linked with the external part of slip cap.Thus, institute
The claw stated is fixed with described slip cap by fastening assembly, and the two does not has relative displacement.
Described fixed cover be articulated and connected by connecting shaft and operation platform and can be relative in described connecting shaft
Axis rotates；Being provided with the described extension spring connecting fixed cover with operation platform on the upside of described fixed cover, this is solid
The described electromagnetic draw bar connecting fixed cover with operation platform it is provided with on the downside of fixed set；Described claw is by fastening
Assembly is fixedly linked with described slip cap.Thus, described fixed cover passes through connecting shaft and operation platform
Connect, and fixed cover can rotate relative to connecting shaft axis.
Described fixed cover centrage and tower axis are positioned in approximately the same plane, only when claw and tower
During wall contact, the centrage of described fixed cover and the tangent value of the angle of the bus of tower are more than described
Claw and tower wall between the inverse of friction coefficient mu.
Being connected by drive rod between described slip cap and fixed cover, one end of described drive rod is hinged on
On fixed cover, the other end of this drive rod is connected with slip cap by impeller-hub.
Described fixed cover sidewall has bar shaped gathering sill, described slip cap under described drive rod effect,
Impeller-hub can do linear slide along gathering sill in the gathering sill of fixed cover.Thus, described fixed cover two
Side is provided with gathering sill, and described slip cap, can be along straight in fixed cover under described drive rod effect
Line slides, and the dual-side of slip cap is stretched out at the two ends connecting the impeller-hub of drive rod and slip cap, and with
Gathering sill coordinates.
Equipped with the range finder in gap, institute between detection claw and tower on the external part of described slip cap
State on operation platform equipped with tenesmus detector.
Described grasping mechanism has many groups.During use, multiple danger button, institute can be set on operation platform
The fixed cover stated, slip cap, claw etc. to the grasp device of tower can along tower be arranged around multiple.
Below in conjunction with embodiment, the invention will be further described.
The present invention is provided with control system, danger button, tenesmus spy on the operation platform around tower
Survey device and fixed cover, in described fixed cover, be provided with slip cap, the inwall of described fixed cover and cunning
The outer wall of dynamic set matches, and slip cap can slide by axially opposed fixed cover.Described fixed cover and slip
Being connected by drive rod between set, described drive rod one end is connected with fixed cover by fixing axle, and locates
In the inside of fixed cover, the other end is connected with slip cap by impeller-hub, and is in the inside of slip cap.
Described fixed cover is provided with gathering sill, and described impeller-hub two ends are stretched out slip cap and are in leading of fixed cover
In groove.Fixed cover is stretched out in described slip cap one end, and is provided with claw, distance measurement at extension
Device.When described operation platform normally works, have between described claw and tower wall certain between
Gap.Response time that emergency set is started by this gap, ride comfort when starting have significant impact, because of
The size of this gap needs to be held essentially constant.
It is often up-small and down-big cone due to general wind-power tower, along with the rising of operation platform,
Distance between inside edge and the tower drum outer wall of operation platform can be more and more remote, in order to ensure claw and tower
Gap length between drum outer wall face is constant, is provided with range finder in slip cap end, finds out cunning at any time
Distance between dynamic set and tower drum outer wall, and then deduce the distance between claw and tower drum outer wall.Thus,
Operation platform along tower rise during, control system can according to the data of the acquisition of range finder,
Drive rod is extended, promotes slip cap to draw close to tower centerline direction；Otherwise, when operation platform edge
Tower decline time, drive rod can promote slip cap away from tower centerline direction, to ensure claw and tower
Gap excursion between wall is in allowed limits.
Preferably, it is rigidly connected by mounting seat between described fixed cover and operation platform, i.e. fixed cover
With the relative invariant position between operation platform.Described slip cap is connected with claw by rotating shaft,
The upside of described rotating shaft axis is provided with the extension spring being simultaneously connected with slip cap with claw, and another downside is provided with electromagnetism
Pull bar, described electromagnetic draw bar one end is connected with slip cap by hinge pin, and the other end passes through bearing pin and claw
It is connected.
Further, described claw is provided with changeover portion and friction section, described changeover portion be one with
The lift section of the cam of line centered by shaft axis.Described fixed cover axis is in tower axis
Same plane, in this plane, the angle between fixed cover axis and tower drum outer wall bus is α, then full
Foot: the tangent value of α is more than the inverse of the coefficientoffrictionμ between claw and tower drum outer wall, i.e. tan α ＞
1/ μ, namely α ＞ arctan (1/ μ).
Specifically, when operation platform is in an emergency, described tenesmus detector, or constructor
Member sends signal to control system immediately by described danger button, and control system sends appointment, electromagnetism
Draw-bar pull disappears, and under extension spring effect, claw turns an angle around the shaft, due to the changeover portion of claw
The lift section of the cam of line centered by rotating shaft, so, on changeover portion certain point or region immediately with tower
Drum outer wall contacts, and under stiction and extension spring act on jointly, claw can rotate further, but card
The pressure on tower surface is increased by pawl further, and frictional force also can increase further, until the friction of claw
Section contacts with tower, and frictional force is bigger, owing to claw is more than claw to the tangent value of the pressure angle α of tower
With the inverse of the coefficientoffrictionμ of tower drum outer wall, thus claw can be locked in tower, it is ensured that operation platform
Will not drop further, it is to avoid accident occurs；
More specifically, owing to claw have employed a changeover portion, be equivalent to operation platform from dropping
Add a buffering course during static, decrease the vibrations caused due to anxious deceleration and make construction
Injury to personnel or fall the probability operation platform, it is possible to prevent from damaging the lacquer painting of tower.
Preferably, it is connected by connecting shaft between described fixed cover and operation platform, and at fixed cover
Side is provided with the extension spring of connection construction platform and fixed cover, and opposite side is provided with connection fixed cover and operation platform
Electromagnetic draw bar.Described slip cap end is provided with claw, and described claw passes through fastening assembly and slip
Set is fixing to be connected, and and tower drum outer wall between leave gap.When claw is pressed in tower, institute
The tangent value of the angle β of the fixed cover axis stated and tower bus is more than the coefficient of friction of claw with tower
The inverse of μ, i.e. tan β ＞ 1/ μ, namely β ＞ arctan (1/ μ).
Specifically, when operation platform is in an emergency, described tenesmus detector, or constructor
Member sends signal to control system immediately by described danger button, and control system sends appointment, electromagnetism
Draw-bar pull disappears, and under extension spring effect, fixed cover drives slip cap, claw to turn an angle around connecting shaft
Degree so that claw contacts and compress tower surface, owing to claw is little to the tangent value of the pressure angle beta of tower
In the coefficient of friction of claw Yu tower drum outer wall, then claw will be locked in tower, thus operation platform meeting
It is still in tower, it is to avoid accident occurs.
Preferably, when operation platform needs to hover over a certain height operation, workmen also can manually open
Dynamic emergency set, is locked in operation platform in tower, to increase safety coefficient.
Once failture evacuation, or workmen needs the position of mobile operation platform, and workmen is to control
System processed sends appointment, and control system makes electromagnetic draw bar produce pulling force, pulls claw to invert one around the shaft
Determine angle, or pull fixed cover to drive claw to invert certain angle around connecting shaft, be allowed to reset, i.e. block
Pawl disengages with tower drum outer wall, keeps former setting gap.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Drawings below is used for providing a further understanding of the present invention, itself and following detailed description of the invention one
Rise and be used for explaining the present invention, but protection scope of the present invention be not limited to following example shown in the drawings and
Embodiment.In accompanying drawing:
The front view of Fig. 1 one embodiment of this invention and scheme of installation thereof；
Section A-A sectional view in Fig. 2 Fig. 1；
Section B-B sectional view in Fig. 3 Fig. 2；
Partial enlarged view at I in Fig. 4 Fig. 1；
The front view of Fig. 5 another embodiment of the present invention and scheme of installation thereof；
Partial enlarged view at II in Fig. 6 Fig. 5.
In the drawings:
1-scram button；2-control system；3-drops detector；4-wire；5-gathering sill；6-mounting seat；
7-operation platform；8-tower；9-fixed cover；10-slip cap；11-impeller-hub；12-drive rod；13-is solid
Dead axle；14-range finder；15-extension spring；16-rotating shaft；17-gap；18-changeover portion；19-friction section；
20-claw；21-bearing pin；22-electromagnetic draw bar；23-hinge pin；24-hinge；25-fastening assembly.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with the accompanying drawings
The present invention is described in further detail with specific embodiment.It should be appreciated that it is described herein
Detailed description of the invention is merely to illustrate and explains the present invention, and protection scope of the present invention is not limited to following
Detailed description of the invention.
It should be noted that, first, in the description of technical scheme, in order to be explicitly described
Some nouns of locality that the technical characteristic of the present invention is used, such as " on ", D score, " interior ", " outward " etc.
All according to normal side relative to wind-power tower during wind-power tower maintenance platform operation described in the present invention
For Wei, such as, the orientation of relatively close tower top for " on ", near tower centrage side be
" interior ", etc.；Second, the wind-power tower maintenance platform emergency protective device of the present invention is primarily adapted for use in
The equipment that wind-driven generator tower is safeguarded, but it is not meant to that this economic protection device is not applied for other
Aerial lift device it can also be used to such as: in the maintenance equipment such as smokestack, water tower, building.
Embodiment 1:
A kind of for tower maintenance and the emergency protective device of operation platform, on the basis of Fig. 1, in conjunction with
Shown in Fig. 2, Fig. 3, the operation platform 7 around the tower 8 is provided with control system 2, promptly by
Button 1, tenesmus detector 3 and fixed cover 9, described fixed cover 9 is at any time both relative to executing
Work platform 7 is fixed, and is provided with wire 4 and is connected between described control system with other execution unit.
Slip cap 10 it is provided with in described fixed cover 9, and outside the inwall of fixed cover 9 is with slip cap 10
Wall matches, and the two is coaxial, and slip cap 10 can slide axially.Described fixed cover 9 and slip cap
Being connected by drive rod 12 between 10, described drive rod 12 one end is by fixing axle 13 and fixed cover 9
Being connected, and be in the inside of fixed cover 9, the other end is connected with slip cap 10 by impeller-hub 11, and
It is in the inside of slip cap 10.
The both sides of described fixed cover 9 are respectively provided with gathering sill 5, and slip is stretched out at described impeller-hub 11 two ends
Set 10 is also in gathering sill 5.Fixed cover 9 is stretched out in described slip cap 10 one end, and in extending area
It is provided with claw 20, range finder 14.When described operation platform 7 normally works, claw 20 with
Certain gap 17 is had between tower 8 outside wall surface.The sound whole emergency set started due to gap 17
Between Ying Shi, start time ride comfort there is significant impact, because of this gap size need be held essentially constant.
Owing to general wind-power tower 8 is often up-small and down-big taper, along with the rising of operation platform 7,
Distance between its inside edge and tower 8 outside wall surface can be more and more remote, in order to ensure claw 20 and tower
Gap 17 size between 8 outside wall surface is constant, range finder 14 find out at any time tower 8 outer wall away from
From, and then can determine that the distance between claw 20 and tower 8 wall.At operation platform 7 in tower 8
During Shenging, control system 2 can be according to the data of the acquisition of range finder 14 so that drive rod
12 elongations, promote slip cap 10 to draw close to tower 8 centerline direction；Otherwise, when operation platform 7 edge
When tower 8 declines, drive rod 12 can promote slip cap 10 away from tower 8 centerline direction, to ensure
Gap 17 between claw 20 and tower 8 wall changes in allowed limits.
Described slip cap 10 is connected with claw 20, at described rotating shaft 16 centrage by rotating shaft 16
Upside is provided with the extension spring 15 being simultaneously connected with slip cap 10 with claw 20, and downside is provided with electromagnetic draw bar 22, institute
Electromagnetic draw bar 22 one end stated is connected with slip cap 10 by hinge pin 23, the other end by bearing pin 21 and
Claw 20 is connected.
Described fixed cover 9 axis and tower 8 axis are in same plane, the axis of fixed cover 9
Angle between line and tower 8 outer wall bus is α, then meet: the tangent value of α is more than claw 20 and tower
The inverse of the coefficientoffrictionμ between cylinder 8 outer walls, i.e. tan α ＞ 1/ μ, namely α ＞ arctan (1/ μ).
Described claw 20 is the elastomeric material that frictional force is bigger, which is provided with changeover portion 18 and friction section
19, described changeover portion 18 is a lift section for the cam of line centered by rotating shaft 16 axis.Such as figure
Shown in 4, distance
In whole protection device, described danger button 1 can arrange multiple on operation platform 7, institute
The fixed cover 9 stated, slip cap 10, claw 20, and range finder 14 all can be in same construction
It is arranged around multiple along tower 8 on platform 7.
The operation principle of said structure is: when operation platform 7 is in an emergency, and described tenesmus is visited
Survey device 3, or workmen sends signal to control system 2 immediately by danger button 1, controls system
System 2 sends appointment, and electromagnetic draw bar 22 quickly eliminates pulling force, and under extension spring 15 acts on, claw 20 rotates
Axle 16 rotates an angle, and make certain point on changeover portion 18 or region immediately with tower 8 outer wall
Contact, and under stiction F1 and extension spring 15 act on jointly, claw 20 can be further around rotating shaft 16
Rotating, changeover portion 18 is gradually mobile to C point from A point with the contact point of tower 8, claw 20 and tower
Frictional force F1 between 8 and thrust F2 are by increasing, until friction section 19 contacts with tower, and
Claw 20 is stoped to rotate further, owing to claw 20 is less than card to the cotangent value of the pressure angle α of tower 8
Pawl 20 and the coefficientoffrictionμ of tower 8 outer wall, then claw 20 will be locked in tower 8, without
Glide further, thus avoid tenesmus accident to occur.
Owing to, in the claw 20 mechanism with tower 8, have employed a changeover portion 18 so that friction
Power F1 is gradually increased so that operation platform 7 tenesmus acceleration in emergency circumstances is gradually reduced, to one
After determining degree, friction section 19 stably enters duty, by locked for operation platform 7 in tower 8.
This process is equivalent to be progressed into static friction by rolling friction between operation platform 7 and tower 8, can be significantly
Reduce, even eliminate the sliding friction stage, thus considerably reduce the shake caused due to anxious deceleration
Moving makes workmen injured, or throws away the probability of operation platform 7, also reduces claw 20 and damages tower
The possibility of 8 outer wall lacquer paintings.
It addition, when operation platform 7 needs a certain height operation hovering over tower 8, workmen is also
Claw 20 can be manually booted, operation platform 7 is locked in tower 8, to increase safety coefficient.
Once failture evacuation, or workmen needs the position of mobile operation platform 7, workmen to
Control system 2 sends appointment, and control system 2 makes electromagnetic draw bar 22 produce pulling force, drives claw 20
Reversion certain angle, is allowed to reset, i.e. claw 20 disengages with tower 8 outer wall, keeps former setting gap
17。
Embodiment 2
A kind of for wind-power tower maintenance and operation platform emergency protecting equipment, shown in Fig. 5, Fig. 6,
The present embodiment difference from Example 1 is:
That 1. cancels between described fixed cover 9 and operation platform 7 fixing is connected, but by fixed cover 9
Even being connected with operation platform 7 by connecting shaft 25, fixed cover 9 suitably can rotate around connecting shaft 25,
The upside of fixed cover 9 is provided with the extension spring 15 of connection construction platform 7 and fixed cover 9, and it is solid that downside is provided with connection
Surely set 9 and the electromagnetic draw bar 22 of operation platform 7, described electromagnetic draw bar 22 two ends are respectively cut with scissors at one
Axle 24 is connected with fixed cover 9 and operation platform 7；
2. described slip cap 10 end is connected by fastening assembly 26 with claw 20, i.e. claw and cunning
Relative macroscopic motion is there is not between dynamic set 10；
The most only after urgent protection starts, namely when claw 20 is pressed in tower 8, just meet institute
The tangent value of the angle β of fixed cover 9 axis stated and tower 8 bus is more than the friction of claw with tower
The relation reciprocal of coefficient μ, i.e. tan β ＞ 1/ μ, namely β ＞ arctan (1/ μ), and described urgent
When protecting inoperative, between β and μ, then it is unsatisfactory for above-mentioned relation.
The operation principle of the present embodiment is: when operation platform 7 is in an emergency, and described tenesmus is visited
Survey device 3, or workmen send signal to control system 2 immediately by described danger button 1,
Control system 2 sends appointment makes the pulling force of electromagnetic draw bar 22 weaken or disappear, under extension spring 15 acts on,
Fixed cover 9 drives slip cap 10, claw 20 around 25 turns of angles of connecting shaft so that claw 20 connects
Touch and compress tower 8 surface, due to claw 20 to the cotangent value of the pressure angle beta of tower 8 less than claw with
The coefficient of friction of tower drum outer wall, therefore claw 20 can be locked in tower 8, so that operation platform 7 stops
Tenesmus, it is to avoid accident occurs.
Once failture evacuation, or workmen needs the position of mobile operation platform 7, workmen to
Control system 2 sends appointment, and control system 2 makes electromagnetic draw bar 22 produce or increase pulling force, pulls solid
Surely set 9 drive claw 20 inverts certain angle around connecting shaft 25, is allowed to reset, i.e. claw 20 and tower
8 outer walls disengage, keep former setting gap 17, enter normal operating conditions.
The one that describing the present invention in detail above in association with accompanying drawing provides for outer wall of wind power tower maintenance and is executed
The preferred implementation of the emergency protective device of work platform and operation principle, it should be noted, however, that more than
The explanation of embodiment is only intended to help to understand method and the core concept thereof of the present invention, and the present invention does not limit
Detail in above-mentioned embodiment, for those skilled in the art, not
On the premise of departing from the principle of the invention, it is also possible to the present invention is carried out some improvement and modification, these improve
Also fall in the protection domain of the claims in the present invention with modifying.
Claims (11)
1. safeguard and the emergency protective device of operation platform for tower for one kind; described operation platform (7) is around tower (8); it is characterized in that; equipped with least one set grasping mechanism on described operation platform (7); often group grasping mechanism includes the fixed cover (9) that is connected with operation platform (7), is partially disposed in fixed cover (9) interior and can be relatively fixed the slip cap (10) that set (9) length direction moves back and forth；Described slip cap (10) stretches out fixed cover (9) towards one end of tower (8), and the external part of slip cap (10) is equipped with claw (20), gap (17) is there is in described claw (20) when operation platform (7) normally work and between tower (8), this claw (20) counter-clockwise swing when operation platform (7) drops and contact braking with tower (8), the drive mechanism that this claw (20) can drive claw (20) to swing with is connected；Described drive mechanism includes extension spring (15) and electromagnetic draw bar (22)；One end of described extension spring (15) is connected with claw (20), and the other end of this extension spring (15) is connected with the external part of slip cap (10)；One end of described electromagnetic draw bar (22) is connected with claw (20), and the other end of this electromagnetic draw bar (22) is connected with the external part of slip cap (10)；The external part of described claw (20) and slip cap (10) is hinged and connected and this claw (20) can rotate around pin joint.
The most according to claim 1 for tower maintenance and the emergency protective device of operation platform; it is characterized in that; the position that described claw (20) can contact with tower (8) is provided with changeover portion (18) and friction section (19), and the distance between the center of rotation of described changeover portion (18) outer surface and claw (20) is less than the distance between friction section (19) outer surface and the center of rotation of claw (20)；Described changeover portion (18) is the lift section of the cam as center of rotation of rotating shaft (16) centrage with described claw (20) and slip cap (10) external part hinged place.
The most according to claim 2 for tower maintenance and the emergency protective device of operation platform, it is characterised in that described operation platform (7) is fixedly linked with fixed cover (9)；Described claw (20) is hinged and connected by the external part of rotating shaft (16) with slip cap (10), and this claw (20) can (16) rotate around the shaft；On the upside of described rotating shaft (16) centrage, it is provided with the described extension spring (15) connecting slip cap (10) with claw (20), on the downside of described rotating shaft (16) centrage, is provided with described electromagnetic draw bar (22).
4. according to safeguarding and the emergency protective device of operation platform for tower one of claim 1-2 Suo Shu; it is characterized in that; the axis of described slip cap (10) and tower (8) axis are in same plane, and between the axis of this slip cap (10) and tower (8) axis, angle is constant；The tangent value of the angle of the axis of described fixed cover (9) and the outer wall bus of tower (8) is more than the inverse of the friction coefficient mu between described claw (20) and tower (8) wall.
The most according to claim 1 and 2 for tower maintenance and the emergency protective device of operation platform; it is characterized in that; it is connected by drive rod (12) between described slip cap (10) and fixed cover (9); one end of described drive rod (12) is hinged on fixed cover (9), and the other end of this drive rod (12) is connected with slip cap (10) by impeller-hub (11).
The most according to claim 5 for tower maintenance and the emergency protective device of operation platform; it is characterized in that; described fixed cover (9) sidewall has bar shaped gathering sill (5); described slip cap (10) is under described drive rod (12) effect, and impeller-hub (11) can do linear slide along gathering sill (5) in the gathering sill (5) of fixed cover (9).
7. safeguard and the emergency protective device of operation platform for tower for one kind; described operation platform (7) is around tower (8); it is characterized in that; equipped with least one set grasping mechanism on described operation platform (7); often group grasping mechanism includes the fixed cover (9) that is connected with operation platform (7), is partially disposed in fixed cover (9) interior and can be relatively fixed the slip cap (10) that set (9) length direction moves back and forth；Described slip cap (10) stretches out fixed cover (9) towards one end of tower (8), and the external part of slip cap (10) is equipped with claw (20), gap (17) is there is in described claw (20) when operation platform (7) normally work and between tower (8), this claw (20) counter-clockwise swing when operation platform (7) drops and contact braking with tower (8), the drive mechanism that this claw (20) can drive claw (20) to swing with is connected；Described drive mechanism includes extension spring (15) and electromagnetic draw bar (22)；One end of described extension spring (15) is connected with operation platform (7), and the other end of this extension spring (15) is connected with fixed cover (9)；One end of described electromagnetic draw bar (22) is connected with operation platform (7), and the other end of this electromagnetic draw bar (22) is connected with fixed cover (9)；Described claw (20) is fixedly linked with the external part of slip cap (10).
The most according to claim 7 for tower maintenance and the emergency protective device of operation platform; it is characterized in that, described fixed cover (9) is articulated and connected by connecting shaft (25) and operation platform (7) and can rotate relative to the axis of described connecting shaft (25)；Described fixed cover (9) upside is provided with the described extension spring (15) connecting fixed cover (9) with operation platform (8), and this fixed cover (9) downside is provided with the described electromagnetic draw bar (22) connecting fixed cover (9) with operation platform (8)；Described claw (20) is fixedly linked with described slip cap (10) by fastening assembly (26).
9. according to safeguarding and the emergency protective device of operation platform for tower described in claim 7 or 8; it is characterized in that; described fixed cover (9) axis and tower (8) axis are positioned in approximately the same plane; only when claw (20) contacts with tower (8) wall, the tangent value of the angle of the axis of described fixed cover (9) and the bus of tower (8) is more than the inverse of the friction coefficient mu between described claw (20) and tower (8) wall.
10. according to safeguarding and the emergency protective device of operation platform for tower described in claim 7 or 8; it is characterized in that; it is connected by drive rod (12) between described slip cap (10) and fixed cover (9); one end of described drive rod (12) is hinged on fixed cover (9), and the other end of this drive rod (12) is connected with slip cap (10) by impeller-hub (11).
11. is according to claim 10 for tower maintenance and the emergency protective device of operation platform; it is characterized in that; described fixed cover (9) sidewall has bar shaped gathering sill (5); described slip cap (10) is under described drive rod (12) effect, and impeller-hub (11) can do linear slide along gathering sill (5) in the gathering sill (5) of fixed cover (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510246120.4A CN104847099B (en) | 2015-05-15 | 2015-05-15 | Emergency protection device for tower maintenance and construction platform |
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| CN201510246120.4A CN104847099B (en) | 2015-05-15 | 2015-05-15 | Emergency protection device for tower maintenance and construction platform |
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| CN104847099A CN104847099A (en) | 2015-08-19 |
| CN104847099B true CN104847099B (en) | 2017-01-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106088566A (en) * | 2016-06-03 | 2016-11-09 | 江苏科技大学 | A kind of for wind-power tower maintenance and the emergency protective device of operation platform |
| CN110029808A (en) * | 2019-04-11 | 2019-07-19 | 中建四局第六建筑工程有限公司 | A kind of gondola-hanging mechanism and its construction method on steel construction cant beam |
| CN113482311B (en) * | 2021-06-29 | 2023-01-03 | 中交二公局第七工程有限公司 | Construction auxiliary mounting frame for green engineering construction |
| CN114876175A (en) * | 2022-04-07 | 2022-08-09 | 中广核新能源安徽有限公司 | Wind power tower construction platform and method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1761913A1 (en) * | 1990-05-28 | 1992-09-15 | Самарский Филиал Всесоюзного Института По Проектированию Организации Энергетического Строительства "Оргэнергострой" | Device for servicing tail structures |
| JP3967750B2 (en) * | 2005-02-23 | 2007-08-29 | 日本ビソー株式会社 | Cable fall prevention device |
| KR100820363B1 (en) * | 2007-01-29 | 2008-04-07 | 주식회사 미래에스에프이 | Gang-form support device |
| CN201695666U (en) * | 2009-12-31 | 2011-01-05 | 广厦重庆第一建筑(集团)有限公司 | Incline and fall preventing device of attachable lifting scaffold |
| CN202047579U (en) * | 2011-03-17 | 2011-11-23 | 重庆建工脚手架有限公司 | Attached supporting anti-drop device of attached lifting scaffold |
| CN202509757U (en) * | 2012-01-11 | 2012-10-31 | 吴均 | Anti-falling device |
| CN103410306A (en) * | 2013-09-02 | 2013-11-27 | 河南天立建筑工程技术有限公司 | Anti-drop device |
| CN203684637U (en) * | 2014-01-20 | 2014-07-02 | 云南中一重工建筑机械有限公司 | Automatic scaffold locating and anti-falling device |
| CN103866963B (en) * | 2014-01-24 | 2015-12-23 | 广东建星建筑设备有限公司 | Attachment type raise scaffold anti-drop device |
| CN204081437U (en) * | 2014-08-26 | 2015-01-07 | 广东建星建筑设备有限公司 | Climbing scaffold falling proof device |
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