CN104847099A - 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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- CN104847099A CN104847099A CN201510246120.4A CN201510246120A CN104847099A CN 104847099 A CN104847099 A CN 104847099A CN 201510246120 A CN201510246120 A CN 201510246120A CN 104847099 A CN104847099 A CN 104847099A
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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 ofly to safeguard and the emergency protective device of operation platform for tower cylinder.
Background technology
The long-term wind of wind-power tower, Exposure to Sunlight, to drench with rain, in the natural environment of the even invasion and attack of salt fog, sand and dust, easily cause the application of iron and steel tower drum outer wall stained, peeling paint, corrosion.Therefore often need after a while to be safeguarded.
Traditional wind-power tower maintenance mode is mainly undertaken safeguarding that constructor is suspended near tower cylinder by rope, this mode operating efficiency is large compared with low, labour intensity, constructor is extremely uncomfortable, to the fitness of constructor and psychological quality, there is high requirement, therefore, in recent years since, the operation platform proposing multiple automatic lifting for the maintenance construction of wind-power tower or to tower top shipping goods, to increase work efficiency and safety, reduction staff labour intensity.
Because wind-power tower is up to tens of rice, rice even up to a hundred, work high above the ground is belonged to its maintenance construction, and in work progress, except the weight of operation platform self, also comprise constructor, equipment, consumptive material etc. weigh hundreds of kilograms load, therefore, not only very strict to safeguarding that the climbing ability of operation platform requires, also high to its safety requirements in operation process, once occur the emergencies such as unexpected tenesmus and do not take appropriate measures in time, be easy to the major accident that life, property safety occur.
Therefore, develop a kind of wind-power tower maintenance and operation platform of preventing and occur that the protective device of accidental falling accident has great importance at work.
Summary of the invention
The present invention aims to provide and a kind ofly to safeguard and the emergency protective device of operation platform for tower cylinder; this emergency protective device both can be used as the protective device that being locked in by operation platform in unexpected tenesmus situation on tower cylinder appears in operation platform in lifting process; for platform provides the grasp to tower cylinder when also can be used as the hovering of platform in work progress, drastically increase the safety factor that wind-power tower safeguards construction.
To achieve these goals, the technical solution adopted in the present invention is:
A kind ofly to safeguard and the emergency protective device of operation platform for tower cylinder, described operation platform is around tower cylinder, its design feature is, at least one group of grasping mechanism described operation platform be equipped with, often organize grasping mechanism and comprise the fixed cover be connected with operation platform, it is interior and can the slip cap that moves back and forth of fixed cover length direction relatively that part is placed in fixed cover; Described slip cap stretches out fixed cover towards one end of tower cylinder, and the external part of slip cap is equipped with claw, gap is there is in described claw when operation platform normally works and between tower cylinder, this claw counter-clockwise swing when operation platform drops and with tower socket joint touch brake, this claw is connected with a driving mechanism that claw can be driven to swing.
Thus, when operation platform generation emergency drops, claw drive unit driving lower swing and touch with described tower socket joint, thus realize brake hard, when normally working, for platform provides the grasp to tower cylinder when also can be used as platform hovering in work progress.
Be below the technical scheme of further improvement of the present invention:
Described driving mechanism comprises extension spring and electromagnetic draw bar; One end of described extension spring is connected with claw, and the other end of this extension spring is connected with the external part of slip cap; One end of described electromagnetic draw bar is connected with claw, and the other end of this electromagnetic draw bar is connected with the external part of slip cap; The external part of described claw and slip cap is hinged and connected and this claw can rotate around pin joint.
The position that described claw and tower cylinder can contact is provided with changeover portion and friction section, and the distance between described changeover portion external surface and the center of rotation of claw is less than the distance between friction section external surface and the center of rotation of claw.Also namely changeover portion at first the position of contact tower cylinder and the distance of shaft centre line the shortest, the position of last contact tower cylinder and the distance of shaft centre line the longest.
Described changeover portion is with the lift section of the described shaft centerline cam that is center of rotation.
Described operation platform and fixed cover are fixedly linked; Described claw is hinged and connected by the external part of rotating shaft and slip cap, and this claw can rotate around the axis; On the upside of described shaft centerline, be provided with the described extension spring connecting slip cap and claw, on the downside of described shaft centerline, be provided with described electromagnetic draw bar.
Axis and the tower cylinder axis of described slip cap are in same plane, and between the axis of this slip cap and tower cylinder axis, angle is constant; The tangent value of the angle of the center line of described fixed cover and the bus of tower cylinder is greater than the inverse of the friction coefficient mu between described claw and tower tube wall surface.
Described driving mechanism comprises extension spring and electromagnetic draw bar; One end of described extension spring is connected with operation platform, and 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 the other end of this extension spring is connected with fixed cover; The external part of described claw and slip cap is fixedly linked.Thus, described claw is fixed by fastening assembly and described slip cap, and the two does not have relative displacement.
Described fixed cover is articulated and connected by connecting axle and operation platform and can be rotated relative to the axis of described connecting axle; Be provided with on the upside of described fixed cover and be connected and fixed cover and the described extension spring of operation platform, on the downside of this fixed cover, be provided with the described electromagnetic draw bar being connected and fixed cover and operation platform; Described claw is fixedly linked by fastening assembly and described slip cap.Thus, described fixed cover is connected with operation platform by connecting axle, and fixed cover can rotate relative to connecting axle axis.
Described fixed cover center line and tower cylinder axis are arranged in same plane, only when claw contacts with tower tube wall surface, the tangent value of the angle of the center line of described fixed cover and the bus of tower cylinder is greater than the inverse of the friction coefficient mu between described claw and tower tube wall surface.
Described slip cap is connected by drive rod with between fixed cover, and one end of described drive rod is hinged on fixed cover, and the other end of this drive rod is connected with slip cap by impeller-hub.
Described fixed cover sidewall has bar shaped gathering sill, and described slip cap is under described drive rod effect, and impeller-hub can do linear slide along gathering sill in the gathering sill of fixed cover.Thus, described fixed cover dual-side is provided with gathering sill, and described slip cap, under described drive rod effect, linearly can slide in fixed cover, 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 coordinates with gathering sill.
The external part of described slip cap is equipped with the range finder in gap between detection claw and tower cylinder, described operation platform is equipped with tenesmus probe.
Described grasping mechanism has many groups.During use, can arrange multiple danger button on operation platform, described fixed cover, slip cap, claw etc. can arrange multiple along the surrounding of tower cylinder to the grasp device of tower cylinder.
Below in conjunction with embodiment, the invention will be further described.
The present invention is around the operation platform around tower cylinder being provided with control system, danger button, tenesmus probe and fixed cover, slip cap is provided with in described fixed cover, the inwall of described fixed cover matches with the outer wall of slip cap, and slip cap can fixed cover slip relatively vertically.Described fixed cover is connected by drive rod with between slip cap, and described drive rod one end is connected with fixed cover by fixed axis, and is in the inside of fixed cover, and 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 the gathering sill of fixed cover.Fixed cover is stretched out in described slip cap one end, and is provided with claw, range finder at extension.When described operation platform normally works, between described claw and tower tube wall surface, there is certain gap.The ride comfort when response time that this gap starts emergency set, startup has significant impact, and the size because of this gap needs substantially to remain unchanged.
Because general wind-power tower is often up-small and down-big taper shape, along with the rising of operation platform, distance between the inside edge of operation platform and tower drum outer wall can be more and more far away, constant in order to ensure the gap length between claw and tower drum outer wall face, range finder is provided with in slip cap end, find out the distance between slip cap and tower drum outer wall at any time, and then know the distance between claw and tower drum outer wall by inference.Thus in the process that operation platform rises along tower cylinder, control system can, according to the data of the acquisition of range finder, make drive rod extend, promote slip cap and draw close to tower cylinder centerline direction; Otherwise when operation platform declines along tower cylinder, drive rod can promote slip cap away from tower cylinder centerline direction, to ensure that gap excursion between claw and tower tube wall surface in allowed limits.
Preferably, be rigidly connected between described fixed cover and operation platform by mount pad, the relative position namely between fixed cover and operation platform does not change.Described slip cap is connected with claw by rotating shaft, the extension spring simultaneously connecting slip cap and claw is provided with in the upside of described rotating shaft axis, another downside is provided with electromagnetic draw bar, and described electromagnetic draw bar one end is connected with slip cap by hinge pin, and the other end is connected with claw by bearing pin.
Further, described claw is provided with changeover portion and friction section, and described changeover portion is the lift section of the cam of a line centered by shaft axis.Described fixed cover axis and tower cylinder axis are in same plane, in this plane, angle between fixed cover axis and tower drum outer wall bus is α, then meet: the tangent value of α is greater than the inverse of the coefficientoffrictionμ between claw and tower drum outer wall, i.e. tan α > 1/ μ is also α > arctan (1/ μ).
Particularly, when operation platform is in an emergency, described tenesmus probe, or constructor sends signal to control system immediately by described danger button, control system sends appointment, electromagnetic draw bar pulling force disappears, under extension spring effect, claw turns an angle around the shaft, due to the lift section of the cam of changeover portion line centered by rotating shaft of claw, so, certain point on changeover portion or region contact with tower drum outer wall immediately, and under stiction and extension spring acting in conjunction, claw can rotate further, but the pressure of claw to tower cylinder surface increases further, frictional force also can increase further, until the friction section of claw and tower socket joint touch, frictional force is larger, because the tangent value of claw to the pressure angle α of tower cylinder is greater than the inverse of the coefficientoffrictionμ of claw and tower drum outer wall, thus claw can be locked on tower cylinder, ensure that operation platform can not drop further, accident is avoided to occur,
More specifically, because claw have employed a changeover portion, be equivalent to static process, add a buffering course from tenesmus to operation platform, decrease the vibrations caused due to anxious deceleration and make constructor injured or fall the probability operation platform, also can prevent the lacquer painting damaging tower cylinder.
Preferably, described fixed cover is connected by connecting axle with between operation platform, and is provided with the extension spring of connection construction platform and fixed cover in the side of fixed cover, and opposite side is provided with the electromagnetic draw bar being connected and fixed cover and operation platform.Described slip cap end is provided with claw, and described claw is fixedly connected with slip cap by fastening assembly, and and leaves gap between tower drum outer wall.When claw is pressed on tower cylinder, the tangent value of the angle β of described fixed cover axis and tower cylinder bus is greater than the inverse of the coefficientoffrictionμ of claw and tower cylinder, i.e. tan β > 1/ μ is also β > arctan (1/ μ).
Particularly, when operation platform is in an emergency, described tenesmus probe, or constructor sends signal to control system immediately by described danger button, control system sends appointment, electromagnetic draw bar pulling force disappears, under extension spring effect, fixed cover drives slip cap, claw turns an angle around connecting axle, claw is contacted and compresses tower cylinder surface, because the tangent value of claw to the pressure angle β of tower cylinder is less than the friction factor of claw and tower drum outer wall, then claw will be locked on tower cylinder, thus operation platform can be still on tower cylinder, accident is avoided to occur.
Preferably, when operation platform needs to hover over a certain height operation, constructor also can manually boot emergency set, is locked in by operation platform on tower cylinder, to increase safety factor.
Once failture evacuation, or constructor needs the position of mobile operation platform, constructor sends appointment to control system, control system makes electromagnetic draw bar produce pulling force, claw is pulled to reverse around the shaft certain angle, or pull fixed cover to drive claw to reverse certain angle around connecting axle, make it to reset, namely claw and tower drum outer wall are thrown off, are kept former setting gap.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Following accompanying drawing is used to provide a further understanding of the present invention, and itself and following detailed description of the invention one are used from explanation the present invention, but protection scope of the present invention is 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;
A-A cross-sectional view in Fig. 2 Fig. 1;
B-B cross-sectional view in Fig. 3 Fig. 2;
I place's partial enlarged view in Fig. 4 Fig. 1;
The front view of another embodiment of Fig. 5 the present invention and scheme of installation thereof;
II place's partial enlarged view in Fig. 6 Fig. 5.
In the drawings:
1-scram button; 2-control system; 3-drops probe; 4-wire; 5-gathering sill; 6-mount pad; 7-operation platform; 8-tower cylinder; 9-fixed cover; 10-slip cap; 11-impeller-hub; 12-drive rod; 13-fixed axis; 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 understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Should be understood that, detailed description of the invention described herein is only for instruction and explanation of the present invention, and protection scope of the present invention is not limited to following detailed description of the invention.
Also it should be noted that, first, in the description of technical scheme of the present invention, in order to clearly describe some nouns of locality that technical characteristic of the present invention uses, such as " on ", D score, " interior ", " outward " etc. be all according to during described wind-power tower maintenance platform operation of the present invention for the normal orientation of wind-power tower, such as, relatively near the orientation of tower top be " on ", near tower cylinder center line side be " interior ", etc.; Second; wind-power tower maintenance platform emergency protective device of the present invention is mainly applicable to the equipment that wind-driven generator tower is safeguarded; but and do not mean that this economic protection device can not be applicable to other aerial lift device, also can be used for such as: in the service equipments such as smokestack, water tower, building.
Embodiment 1:
A kind ofly to safeguard and the emergency protective device of operation platform for tower cylinder; on the basis of Fig. 1; shown in composition graphs 2, Fig. 3; around the operation platform 7 around tower cylinder 8 being provided with control system 2, danger button 1, tenesmus probe 3 and fixed cover 9; described fixed cover 9 is fixed relative to operation platform 7 at any time, is provided with wire 4 and is connected between described control system with other execution unit.
Be provided with slip cap 10 in described fixed cover 9, and the inwall of fixed cover 9 matches with the outer wall of slip cap 10, the two is coaxial, and slip cap 10 can slide axially.Described fixed cover 9 is connected by drive rod 12 with between slip cap 10, described drive rod 12 one end is connected with fixed cover 9 by fixed axis 13, and being in the inside of fixed cover 9, the other end is connected with slip cap 10 by impeller-hub 11, and is in the inside of slip cap 10.
The both sides of described fixed cover 9 are respectively provided with gathering sill 5, and described impeller-hub 11 two ends are stretched out slip cap 10 and to be in gathering sill 5.Fixed cover 9 is stretched out in described slip cap 10 one end, and on extending area, be provided with claw 20, range finder 14.When described operation platform 7 normally works, between claw 20 and tower cylinder 8 outside wall surface, there is certain gap 17.The response time started whole emergency set due to gap 17, ride comfort when starting have significant impact, and the size because of this gap needs substantially to remain unchanged.
Because 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 cylinder 8 outside wall surface can be more and more far away, constant in order to ensure gap 17 size between claw 20 and tower cylinder 8 outside wall surface, range finder 14 finds out the distance of tower cylinder 8 outer wall at any time, and then can determine the distance between claw 20 and tower cylinder 8 wall.In the process that operation platform 7 rises along tower cylinder 8, control system 2 can, according to the data of the acquisition of range finder 14, make drive rod 12 extend, and promotes slip cap 10 and draws close to tower cylinder 8 centerline direction; Otherwise when operation platform 7 declines along tower cylinder 8, drive rod 12 can promote slip cap 10 away from tower cylinder 8 centerline direction, to ensure that the gap 17 between claw 20 and tower cylinder 8 wall changes in allowed limits.
Described slip cap 10 is connected with claw 20 by rotating shaft 16, the extension spring 15 simultaneously connecting slip cap 10 and claw 20 is provided with in the upside of described rotating shaft 16 center line, downside is provided with electromagnetic draw bar 22, described electromagnetic draw bar 22 one end is connected with slip cap 10 by hinge pin 23, and the other end is connected with claw 20 by bearing pin 21.
Described fixed cover 9 axis and tower cylinder 8 axis are in same plane, angle between the axis of fixed cover 9 and tower cylinder 8 outer wall bus is α, then meet: the tangent value of α is greater than the inverse of the coefficientoffrictionμ between claw 20 and tower cylinder 8 outer wall, i.e. tan α > 1/ μ is also α > arctan (1/ μ).
Described claw 20 is the elastomeric material that frictional force is larger, which is provided with changeover portion 18 and friction section 19, and described changeover portion 18 is lift sections of the cam of a line centered by rotating shaft 16 axis.As shown in Figure 4, distance
In whole protective device, described danger button 1 can arrange multiple, described fixed covers 9, slip cap 10, claw 20 on operation platform 7, and range finder 14 all can arrange multiple on same operation platform 7 around tower cylinder 8.
The operating principle of said structure is: when operation platform 7 is in an emergency, described tenesmus probe 3, or constructor sends signal to control system 2 immediately by danger button 1, control system 2 sends appointment, electromagnetic draw bar 22 eliminates pulling force fast, under extension spring 15 acts on, claw 20 16 rotates an angle around the shaft, and make on changeover portion 18 certain point or region immediately with tower cylinder 8 wall contacts, and under stiction F1 and extension spring 15 acting in conjunction, claw 20 can 16 rotate further around the shaft, changeover portion 18 is mobile from A point to C point gradually with the contact point of tower cylinder 8, frictional force F1 between claw 20 and tower cylinder 8 and thrust F2 is by increasing, until friction section 19 is touched with tower socket joint, and stop claw 20 to rotate further, cotangent value due to the pressure angle α of claw 20 pairs of tower cylinders 8 is less than the coefficientoffrictionμ of claw 20 and tower cylinder 8 outer wall, then claw 20 will be locked on tower cylinder 8, and can not glide further, thus avoid tenesmus accident to occur.
Because claw 20 is with the mechanism of tower cylinder 8, have employed a changeover portion 18, frictional force F1 is increased gradually, operation platform 7 tenesmus acceleration is in emergency circumstances reduced gradually, to after to a certain degree, friction section 19 enters duty reposefully, by locked for operation platform 7 on tower cylinder 8.This process is equivalent to progress into static friction by rolling friction between operation platform 7 and tower cylinder 8, can greatly reduce, even eliminate the sliding friction stage, thus considerably reduce the vibrations caused due to anxious deceleration and make constructor injured, or throw away the probability of operation platform 7, also reduce the possibility that claw 20 damages tower cylinder 8 outer wall lacquer painting.
In addition, when operation platform 7 needs a certain height operation hovering over tower cylinder 8, constructor also can manually boot claw 20, is locked in by operation platform 7 on tower cylinder 8, to increase safety factor.
Once failture evacuation, or constructor needs the position of mobile operation platform 7, constructor sends appointment to control system 2, control system 2 makes electromagnetic draw bar 22 produce pulling force, claw 20 is driven to reverse certain angle, make it to reset, namely claw 20 and tower cylinder 8 outer wall are thrown off, are kept former setting gap 17.
Embodiment 2
A kind of wind-power tower that is used for is safeguarded and operation platform emergency protecting equipment, and shown in composition graphs 5, Fig. 6, the present embodiment difference from Example 1 is:
1. described fixed cover 9 and being fixedly connected with between operation platform 7 is cancelled, but fixed cover 9 is even connected with operation platform 7 by connecting axle 25, fixed cover 9 suitably can rotate around connecting axle 25, the extension spring 15 of connection construction platform 7 and fixed cover 9 is provided with in the upside of fixed cover 9, downside is provided with the electromagnetic draw bar 22 being connected and fixed cover 9 and operation platform 7, and described electromagnetic draw bar 22 two ends are respectively connected with fixed cover 9 and operation platform 7 by place's hinge 24;
2. described slip cap 10 end is connected by fastening assembly 26 with claw 20, namely there is not relative macroscopic motion between claw with slip cap 10;
3. only after urgent protection starts; also namely when claw 20 is pressed on tower cylinder 8; the tangent value just meeting the angle β of described fixed cover 9 axis and tower cylinder 8 bus is greater than the relation of the inverse of the coefficientoffrictionμ of claw and tower cylinder; i.e. tan β > 1/ μ; also be β > arctan (1/ μ); and described urgent protection inoperative time, then do not meet above-mentioned relation between β and μ.
The operating principle of the present embodiment is: when operation platform 7 is in an emergency, described tenesmus probe 3, or constructor sends signal to control system 2 immediately by described danger button 1, control system 2 sends to specify and 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 is around connecting axle 25 turns of angles, claw 20 is contacted and compresses tower cylinder 8 surface, cotangent value due to the pressure angle β of claw 20 pairs of tower cylinders 8 is less than the friction factor of claw and tower drum outer wall, therefore claw 20 can be locked on tower cylinder 8, thus make operation platform 7 stop tenesmus, accident is avoided to occur.
Once failture evacuation, or constructor needs the position of mobile operation platform 7, constructor sends appointment to control system 2, control system 2 makes electromagnetic draw bar 22 produce or increase pulling force, fixed cover 9 is pulled to drive claw 20 to reverse certain angle around connecting axle 25, make it to reset, namely claw 20 and tower cylinder 8 outer wall are thrown off, are kept former setting gap 17, enter normal operating conditions.
Below provided by the invention a kind ofly to safeguard for outer wall of wind power tower and the preferred embodiment of emergency protective device of operation platform and operating principle is described by reference to the accompanying drawings in detail, but, should be understood that, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping, the present invention is not limited to the detail in above-mentioned embodiment, for those skilled in the art, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (10)
1. safeguard and the emergency protective device of operation platform for tower cylinder for one kind, described operation platform (7) is around tower cylinder (8), it is characterized in that, (7) are equipped with at least one group of grasping mechanism to described operation platform, often organize grasping mechanism and comprise the fixed cover (9) be connected with operation platform (7), it is interior and can the slip cap (10) that moves back and forth of fixed cover (9) length direction relatively that part is placed in fixed cover (9); Described slip cap (10) stretches out fixed cover (9) towards one end of tower cylinder (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 works and between tower cylinder (8), this claw (20) counter-clockwise swing when operation platform (7) drops and contacting with tower cylinder (8) is braked, and the driving mechanism that this claw (20) and can drive claw (20) to swing is connected.
2. according to claim 1ly safeguard and the emergency protective device of operation platform for tower cylinder, it is characterized in that, described driving mechanism comprises extension spring (14) and electromagnetic draw bar (22); One end of described extension spring (14) is connected with claw (20), and the other end of this extension spring (14) 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); Described claw (20) and the external part of slip cap (10) are hinged and connected and this claw (20) can rotate around pin joint.
3. according to claim 2ly to safeguard and the emergency protective device of operation platform for tower cylinder, it is characterized in that, the position that described claw (20) and tower cylinder (8) can contact is provided with changeover portion (18) and friction section (19), and the distance between the center of rotation of described changeover portion (18) external surface and claw (20) is less than the distance between the center of rotation of friction section (19) external surface and claw (20); Described changeover portion (18) is take described rotating shaft (16) center line as the lift section of the cam of center of rotation.
4. safeguarding and the emergency protective device of operation platform for tower cylinder according to Claims 2 or 3, is characterized in that, described operation platform (7) and fixed cover (9) are fixedly linked; 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; Be provided with on the upside of described rotating shaft (16) center line and connect slip cap (10) and the described extension spring (15) of claw (20), on the downside of described rotating shaft (16) center line, be provided with described electromagnetic draw bar (22).
5. according to safeguarding and the emergency protective device of operation platform for tower cylinder one of claim 1-3 Suo Shu, it is characterized in that, axis and tower cylinder (8) axis of described slip cap (10) are in same plane, and between the axis of this slip cap (10) and tower cylinder (8) axis, angle is constant; The tangent value of the angle of the center line of described fixed cover (9) and the bus of tower cylinder (8) is greater than the inverse of the friction coefficient mu between described claw (20) and tower cylinder (8) wall.
6. according to claim 1ly safeguard and the emergency protective device of operation platform for tower cylinder, it is characterized in that, described driving mechanism comprises extension spring (14) and electromagnetic draw bar (22); One end of described extension spring (14) is connected with operation platform (7), and the other end of this extension spring (14) 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 extension spring (14) is connected with fixed cover (9); Described claw (20) is fixedly linked with the external part of slip cap (10).
7. according to claim 6ly to safeguard and the emergency protective device of operation platform for tower cylinder, it is characterized in that, described fixed cover (9) is articulated and connected by connecting axle (25) and operation platform (7) and can be rotated relative to the axis of described connecting axle (25); Described fixed cover (9) upside is provided with and is connected and fixed cover (9) and the described extension spring (15) of operation platform (8), is provided with the described electromagnetic draw bar (22) being connected and fixed cover (9) and operation platform (8) on the downside of this fixed cover (9); Described claw (20) is fixedly linked by fastening assembly (26) and described slip cap (10).
8. safeguarding and the emergency protective device of operation platform for tower cylinder according to claim 6 or 7; it is characterized in that; described fixed cover (9) center line and tower cylinder (8) axis are arranged in same plane; only when claw (20) contacts with tower cylinder (8) wall, the tangent value of the angle of the center line of described fixed cover (9) and the bus of tower cylinder (8) is greater than the inverse of the friction coefficient mu between described claw (20) and tower cylinder (8) wall.
9. according to claim 1-3; what one of 6-7 was described safeguard for tower cylinder and the emergency protective device of operation platform; it is characterized in that; described slip cap (10) is connected by drive rod (12) with between 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).
10. according to claim 9ly to safeguard and the emergency protective device of operation platform for tower cylinder; it is characterized in that; described fixed cover (9) sidewall has bar shaped gathering sill (5); described slip cap (10) is under the effect of described drive rod (12), and impeller-hub (11) can do linear slide along gathering sill (5) in the gathering sill of fixed cover (9) (5).
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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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| CN104847099B CN104847099B (en) | 2017-01-11 |
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Cited By (5)
| 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 |
| CN113482311A (en) * | 2021-06-29 | 2021-10-08 | 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 |
| CN117072386A (en) * | 2023-09-06 | 2023-11-17 | 江苏携之创科技有限公司 | Firmly-stable installation wind turbine generator cabin cover |
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Cited By (8)
| 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 |
| CN113482311A (en) * | 2021-06-29 | 2021-10-08 | 中交二公局第七工程有限公司 | Construction auxiliary mounting frame for green engineering construction |
| 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 |
| CN114876175B (en) * | 2022-04-07 | 2024-05-10 | 中广核新能源安徽有限公司 | Wind power tower construction platform and method |
| CN117072386A (en) * | 2023-09-06 | 2023-11-17 | 江苏携之创科技有限公司 | Firmly-stable installation wind turbine generator cabin cover |
| CN117072386B (en) * | 2023-09-06 | 2024-04-19 | 江苏携之创科技有限公司 | Firmly-stable installation wind turbine generator cabin cover |
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