CN110002270B - Adjustable speed type rope releasing disc of prestressed tendons or ropes for wind tower and rope penetrating construction method of adjustable speed type rope releasing disc - Google Patents
Adjustable speed type rope releasing disc of prestressed tendons or ropes for wind tower and rope penetrating construction method of adjustable speed type rope releasing disc Download PDFInfo
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- CN110002270B CN110002270B CN201910330520.1A CN201910330520A CN110002270B CN 110002270 B CN110002270 B CN 110002270B CN 201910330520 A CN201910330520 A CN 201910330520A CN 110002270 B CN110002270 B CN 110002270B
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- 210000002435 tendon Anatomy 0.000 title claims abstract description 30
- 238000010276 construction Methods 0.000 title claims description 48
- 230000000149 penetrating effect Effects 0.000 title claims description 8
- 238000005192 partition Methods 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims description 89
- 230000001105 regulatory effect Effects 0.000 claims description 45
- 238000009434 installation Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- 230000001276 controlling effect Effects 0.000 claims description 13
- 230000002457 bidirectional effect Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 abstract description 14
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000282376 Panthera tigris Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
- B65H49/18—Methods or apparatus in which packages rotate
- B65H49/20—Package-supporting devices
- B65H49/32—Stands or frameworks
- B65H49/324—Constructional details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/02—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package
- B65H59/04—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package by devices acting on package or support
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/16—Prestressed structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/35—Ropes, lines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The adjustable speed type rope releasing disc for the prestressed tendons or ropes for the wind towers comprises a rope releasing disc base and a rotary tray device assembly, wherein the rotary tray device assembly is coaxially and rotatably arranged on the rope releasing disc base through an assembly type multi-layer supporting frame; the multi-layer support frame comprises support screws, a partition plate, connecting nuts, locking nuts and support plates, wherein the support screws at the bottommost layer are uniformly and annularly distributed on the support plates at the bottom of the multi-layer support frame to form a first-layer annular support frame, the support screws are connected through the connecting nuts and are fixedly locked through the locking nuts to form n-layer annular support frames; a partition board for supporting the rotary tray component is arranged between every two layers of annular supporting frames; the rotary tray assembly consists of a tray frame and a tray rotating mechanism, and the cable trays are stacked on the rotary tray assembly in a tray mode; the adjustable speed type rope releasing disc for the prestressed tendons or ropes for the wind tower can realize synchronous releasing of a plurality of tendons or ropes; and is suitable for safe work in a working condition area with larger wind sand.
Description
Technical Field
The invention relates to a fitting for prestressed reinforcement or cable construction for a wind tower, in particular to a speed-adjustable cable releasing disc for the prestressed reinforcement or cable for the wind tower and a method for the prestressed reinforcement or the prestressed cable threading construction for the wind tower.
Background
In recent years, with the vigorous development of the wind power industry, related wind power matching technology is promoted, wind tower construction for wind power generation becomes a key technology for improving the power generation rate, and the pre-stressing technology is paid attention to and applied to the current ultra-high concrete wind tower; the construction cost of the wind power tower becomes the focus of attention of investment companies, and how to effectively and rapidly construct the tower, so that high-efficiency construction quality is formed, and the construction cost becomes an important point for controlling the cost.
The concrete tower barrel structure is provided with a large amount of prestressed tendons or cables, so that the installation of prestressing force is realized rapidly, and besides the experience of a skilled construction team, the concrete tower barrel structure also needs to rely on high-efficiency and intelligent construction equipment; the general height of the concrete wind tower is more than 80-140 meters, and how the prestressed tendons or ropes penetrate into the tower top from the ground quickly saves the construction period and becomes the key of construction; the cable paying-off process is a very complicated process, occupies the main time of construction, has a simple structure, can only realize paying-off of single-disc ribs or cables, has low construction efficiency as shown in a CN201420794974.7 structure diagram shown in figures 8-1 to 8-2, has uncontrollable paying-off line speed in the paying-off process, and easily causes prestress ribs or cables to be scattered even hurt surrounding constructors when the paying-off line speed is too high.
Disclosure of Invention
The invention aims at: an adjustable speed type rope releasing disc of a prestressed tendon or rope for a wind tower, which is matched with the construction of the prestressed tendon or rope of an ultra-high concrete tower, and a method for the construction of the prestressed tendon or rope for the wind tower by rope threading are provided; the adjustable speed type rope releasing disc for the prestressed tendons or ropes for the wind tower not only can realize synchronous releasing of a plurality of tendons or ropes; meanwhile, the device also has a certain function of controlling the paying-off speed, and is suitable for safe work in a working condition area with larger sand blown by wind.
The technical scheme for solving the problems is as follows: the utility model provides a cable tray is put with adjustable speed of prestressing tendons or cable to wind tower, includes cable tray base and rotatory tray device subassembly, and this rotatory tray device subassembly coaxial rotation installs on cable tray base, its characterized in that: the rotary tray device assembly is coaxially and rotatably arranged on the rope placing tray base through the assembled multi-layer supporting frame;
the multi-layer support frame comprises n layers, wherein the n layers comprise support screws, a separation plate, a connecting nut, a locking nut and support plates, the support screws at the bottommost layer are uniformly and annularly distributed on the support plates at the bottom of the multi-layer support frame to form a first layer of annular support frame, when two cables or n cables need to be simultaneously paid off, the support screws are connected through the connecting nut and are fixedly locked through the locking nut to form n layers of annular support frames; a partition board for supporting the rotary tray component is arranged between every two layers of annular supporting frames;
the rotary tray assembly consists of a tray frame and a tray rotating mechanism, and the cable trays are stacked on the rotary tray assembly in a tray mode and can be easily rotated by the tray rotating mechanism when the cable is pulled; the value range of n is as follows: n is more than or equal to 1 and less than or equal to 10.
The further technical proposal of the prestress rib or rope adjustable speed type rope releasing disc for the wind tower is as follows: the tray rotating mechanism of the rotating tray assembly is a tray rotating mechanism I with a flexible dust cover;
the tray rotating mechanism I with the flexible dust cover comprises the flexible dust cover, a rotating shaft I, a bearing seat I, a bearing plate I and a dust cover plate I;
under the installed state, rotation axis I imbeds in the mesopore of tray frame, and bearing frame I assembles on the tray frame, and bearing I and I assembly cooperation of bearing frame, flexible dust cover is at I outer lane of bearing frame.
The further technical scheme of the adjustable speed type rope releasing disc of the prestressed tendons or ropes for the wind tower is as follows: the tray rotating mechanism of the rotating tray assembly is withoutDust coverThe tray rotating mechanism II without the dust cover comprises a rotating shaft II, a bearing seat II, a bearing plate II and a dust cover plate II;
the rotating shaft II is embedded in a middle hole of the tray frame, the bearing seat II is assembled on the tray frame, and the bearing II is assembled and matched with the bearing seat II.
The further technical scheme of the adjustable speed type rope releasing disc of the prestressed tendons or ropes for the wind tower is as follows: the tray rotating mechanism of the rotating tray assembly comprises a tray rotating mechanism I with a flexible dust cover and arranged on the bottom layer and a tray rotating mechanism II without a dust cover and arranged on the upper layer;
the tray rotating mechanism I with the flexible dust cover comprises the flexible dust cover, a rotating shaft I, a bearing seat I, a bearing plate I and a dust cover plate I;
the tray rotating mechanism II without the dust cover comprises a rotating shaft II, a bearing seat II, a bearing plate II and a dust cover plate II;
the rotating shaft is embedded in a middle hole of the tray frame, the bearing seat is assembled on the tray frame, the bearing is assembled and matched with the bearing seat, and the flexible dust cover is sleeved on the outer ring of the bearing seat.
The further technical proposal of the prestress rib or rope adjustable speed type rope releasing disc for the wind tower is as follows: the cable tray base is a lifting cable tray base component, and comprises a bottom cable tray support piece and lifting upright posts positioned at four corners of the bottom cable tray support piece, and a screw rod adjusting system or an oil pressure jacking structure for adjusting the height of each lifting upright post is arranged on each lifting upright post.
The further technical proposal of the prestress rib or rope adjustable speed type rope releasing disc for the wind tower is as follows: the prestress rib or rope adjustable speed type rope releasing disc for the wind tower further comprises two speed regulating devices used for controlling the rotating speed of the rotating tray assembly to be too high when the rope is released, the speed regulating devices are of vice structures, and the jaw opening and closing of the tiger jaw are controlled through speed regulating rods or miniature bidirectional telescopic cylinders on the speed regulating devices, so that friction force is applied to the chassis, and the rotating speed of the rotating tray assembly is controlled.
Another related technical scheme is as follows: the invention relates to a method for wind tower prestress rib or cable threading construction, which is an installation construction method for wind tower prestress rib or cable threading construction by adopting the adjustable speed type cable releasing disc for the prestress rib or cable for the wind tower, comprising the following steps:
A. installing a rope placing plate base:
leveling the rope laying tray base by adjusting screw rod adjusting systems or oil pressure jacking structures on lifting upright posts at four corners of the bottom rope laying tray supporting piece, so that the whole rope laying tray base is kept in a horizontal state or lifted to a proper rope laying height;
B. installing an assembled multi-layer support frame:
b1, uniformly and annularly distributing the support screw rods at the bottommost layer on a support disc to form a first layer of annular support frame 11;
b2, installing the annular supporting frames of the 2 nd layer to the n th layer;
when two ropes or more than three ropes are required to be paid out simultaneously, the 2 nd-n layer annular supporting frames are required to be installed, and the value range of n is as follows: n is more than or equal to 1 and less than or equal to 10;
the installation method is as follows: the supporting screw rods are connected through the connecting nuts, and fixed and locked through the locking nuts; a partition plate for supporting the rotary tray assembly is arranged between every two layers of annular supporting frames;
C. mounting a rotary tray assembly:
the rotary tray assembly consists of a tray frame and a tray rotating mechanism, wherein the tray rotating mechanism comprises a tray rotating mechanism I with a flexible dust cover and a tray rotating mechanism II without a dust cover, when the rotary tray assembly is installed, the rotary tray assembly is installed on a partition plate of each layer of annular supporting frame, or the tray rotating mechanism I with the flexible dust cover is adopted, or the tray rotating mechanism II without the dust cover is adopted, or the tray rotating mechanism I with the flexible dust cover is installed at the bottom, and the tray rotating mechanism II without the dust cover is installed at the upper layer;
D. installing prestressed tendons or cable trays: the prestress ribs or the cable trays are stacked into trays and placed on a tray frame of the rotary tray assembly, and when the cable is pulled, the tray is easily rotated by a tray rotating mechanism;
E. installing a speed regulating device:
the speed regulating device is of a vice structure and is arranged on two diagonal lines on a tray frame of the rotary tray assembly, and the opening and closing of a vice (402) opening are controlled by regulating a speed regulating rod or a miniature bidirectional telescopic oil cylinder on the speed regulating device, so that friction force is applied to a chassis, and the effect of controlling the rotation speed of the rotary tray is achieved;
F. paying off and rope threading construction: and when the whole rope releasing disc component is assembled, normal rope releasing and threading construction is started, and the rotating speed of the rotating tray is regulated by controlling the speed regulating device in the rope releasing process.
The further technical scheme of the wind tower prestress rib or cable penetrating construction method is as follows:
in C, installation rotatory tray subassembly step, tray rotary mechanism I with flexible dust cover includes flexible dust cover, rotation axis I, bearing frame I, bearing plate I and dustproof apron I, and its installation step is:
c1, embedding a rotating shaft I into a middle hole of a tray frame;
c2, assembling the bearing seat I on the tray frame, and assembling and matching the bearing I and the bearing seat I;
c3, sleeving the flexible dust cover to the outer ring of the bearing seat I;
c4, assembling and positioning the bearing plate I and the bearing seat I, connecting and sealing the flexible dust cover I with the upper bearing plate I and the rotating disc bracket, and finally installing the dust cover plate I on the top surface of the rotating tray;
the further technical scheme of the wind tower prestress rib or cable penetrating construction method is as follows: in the step of installing the rotary tray assembly, the tray rotating mechanism II without the dust cover comprises a rotating shaft II, a bearing seat II, a bearing plate II and a dust cover plate II;
the installation steps are as follows:
c1, embedding a rotating shaft II into a middle hole of the tray frame;
c2, assembling the bearing seat II on the tray frame, and assembling and matching the bearing II with the bearing seat II;
and C3, assembling and positioning the bearing plate II and the bearing seat II, and finally installing the dustproof cover plate II on the top surface of the rotary tray.
Due to the adoption of the structure, the speed-adjustable rope releasing disc of the prestressed tendons or ropes for the wind towers and the method for rope penetrating construction have the following beneficial effects:
1. the adjustable speed type rope releasing disc of the prestressed tendons or ropes for the wind towers has the assembled multi-layer support frame 1, has the function of simultaneously releasing the multi-layer prestressed tendons or ropes by constructing the multi-layer support frame on site according to engineering requirements, and can greatly improve construction efficiency and shorten construction period.
2. The invention relates to a rotary tray component 2 of a speed-adjustable rope-releasing disc for a wind tower, which consists of a tray frame 21 and a tray rotating mechanism, wherein the tray rotating mechanism I22 with a flexible dust cover 221 is arranged at the bottom layer, and the tray rotating mechanism II 23 without the dust cover is arranged at the upper layer as shown in the figure 1-1; the tray rotating mechanism can also be a tray rotating mechanism II 23 without a dust cover, or a tray rotating mechanism I22 with a flexible dust cover; selecting according to the construction site; can keep apart sand dust entering rotary mechanism during the construction of sand blown by wind area effectively, avoid leading to the card axle, ensured the safe work in the great operating mode district of sand blown by wind.
3. The rope-releasing disc base of the adjustable speed rope-releasing disc with prestressed tendons or ropes for wind towers is a lifting rope-releasing disc base, the height of the base can be adjusted through lifting upright posts 302 positioned at four corners of a bottom rope-releasing disc support 301, and the rope-releasing position is more flexible due to different working condition requirements.
4. The invention relates to a speed regulating device 4 for a speed regulating rope releasing disc of a prestressed tendon or rope for a wind tower, which is characterized in that the speed regulating device 4 is of a vice structure and is arranged on two diagonal lines of a tray frame 21 of a rotary tray assembly, and the opening and closing of a jaw are controlled by regulating a speed regulating rod 401 or a miniature bidirectional telescopic oil cylinder 402 on the speed regulating device 4, so that friction force is applied to a chassis, the speed of the rope releasing disc can be effectively controlled, the convenience and the safety of rope releasing are controlled, and construction accidents are avoided.
In summary, the adjustable speed cable paying-off disc of the prestressed tendons or cables for the wind tower not only can realize synchronous paying-off of a plurality of (tendons) cables, but also can greatly improve the construction efficiency and shorten the construction period; meanwhile, the device also has a certain function of controlling paying-off speed, is suitable for safe work in a working condition area with larger sand blown by wind, and can select a tray rotating mechanism II 23 without a dust cover according to the requirements of a construction site so as to reduce the manufacturing cost, thereby having better social and economic benefits.
The technical features of the adjustable speed cable release disc of the prestressed tendons or cables for wind towers of the present invention are further described below with reference to the accompanying drawings and examples.
Drawings
FIGS. 1-1 to 1-2 are schematic views showing the overall installation state of a speed-adjustable rope releasing disc of a prestressing tendon or rope for a wind tower according to the present invention:
1-1 are front views, and FIG. 1-2 is a top view of FIG. 1-1;
FIGS. 2-1 to 2-2 are schematic views of the structure of an assembled multi-layer tray support;
fig. 2-1 is a front view, and fig. 2-2 is a top view of fig. 2-1;
fig. 3-1 to 3-3 are schematic structural views of a rotary tray assembly:
FIG. 3-1 is a schematic view of the structure of the rotary tray assembly at the bottom layer (i.e., enlarged view of section A of FIG. 1-1);
FIG. 3-2 is a schematic view of a rotating tray assembly positioned at an upper level;
FIG. 3-3 is an enlarged view of section B of FIG. 3-2;
fig. 4-1 to 4-2 are schematic views of a lifting rope tray base structure:
FIG. 4-1 is a front view, and FIG. 4-2 is a top view of FIG. 4-1;
FIG. 5 is a schematic diagram of the structure of the cable adjusting device A;
FIG. 6 is a schematic diagram of a B-type cable adjusting device;
FIG. 7 is a schematic diagram of a tuning cable lever structure;
fig. 8-1 to 8-2 are schematic views showing a conventional rope reel structure.
In fig. 1-7:
1-an assembled multi-layer supporting frame,
11-a first layer annular supporting frame and 12-a second layer annular supporting frame; 13-a third layer of annular support frame;
101-supporting screws, 102-isolating plates, 103-connecting nuts, 104-locking nuts and 105-supporting discs;
2-rotating tray assembly, 21-tray rack, 22-tray rotating mechanism I, 23-tray rotating mechanism II, 24-rotating tray rack;
221-flexible dust covers, 222-rotating shafts I, 223-bearing seats I, 224-bearings I, 225-bearing plates I, 226-dust cover plates I;
232-a rotating shaft II, 233-a bearing seat II, 234-a bearing II, 235-a bearing plate II, 236-a dustproof cover plate II;
3-pay-off reel base assembly:
301-bottom tray supports, 302-liftable uprights;
4-speed regulating device, 41-A type speed regulating device and 42-B type speed regulating device;
401-vice, 402-upright post (assembled fixing pile), 403-speed regulating rod, 4031-right-handed screw, 4032-left-handed screw, 404-rotating shaft, 405-miniature bidirectional telescopic cylinder and 5-cable tray.
Detailed Description
Example 1
Speed-adjustable rope releasing disc for prestressed tendons or ropes of wind towers:
as shown in fig. 1-2, the adjustable speed cable laying tray for the prestressed tendons or cables for the wind tower comprises a cable laying tray base assembly 3 and a rotary tray device assembly 2, wherein the rotary tray device assembly 2 is coaxially and rotatably arranged on the cable laying tray base assembly 3, and the rotary tray device assembly 2 is coaxially and rotatably arranged on the cable laying tray base through an assembled multi-layer support frame 1;
as shown in fig. 2-1 to fig. 2-2, the assembled multi-layer supporting disc frame 1 has 3 layers, including supporting screw rods 101, a partition board 102, connecting nuts 103, locking nuts 104 and supporting discs 105, the supporting screw rods 101 at the bottommost layer are uniformly and annularly distributed on the supporting discs 105 positioned at the bottom of the assembled multi-layer supporting frame 1 to form a first layer of annular supporting frame 11, when 3 cables are required to be simultaneously paid off, the supporting screw rods 101 can be connected through the connecting nuts 103, and the locking nuts 104 are used for fixing and locking; a partition plate 102 for supporting the rotary tray assembly 2 is arranged between every two layers of annular supporting frames, and the whole wire is fixedly arranged on the tray frame 21 of the rotary tray assembly 2.
As shown in fig. 3-1 to 3-3, the rotary tray assembly 2 is composed of a tray frame 21 and a tray rotary mechanism; the tray rotating mechanism can be a tray rotating mechanism I22 with a flexible dust cover; the tray rotating mechanism II 23 without the dust cover can be adopted, as shown in fig. 1-1, the tray rotating mechanism I22 with the flexible dust cover 221 is arranged at the bottom layer, and the tray rotating mechanism II 23 without the dust cover is arranged at the upper layer; the cable trays are stacked on the rotary tray assembly 2, and the tray is easily rotated by a tray rotating mechanism when the cable is pulled.
As shown in fig. 3-1, the tray rotating mechanism with flexible dust cover i 22 comprises a flexible dust cover 221, a rotating shaft 222, a bearing seat i 223, a bearing i 224, a bearing plate i 225 and a dust cover plate i 226;
under the installed state, rotation axis I imbeds in the mesopore of tray frame 21, and bearing frame I assembles on the tray frame, and bearing I and I assembly cooperation of bearing frame, flexible dust cover 221 cover are at I outer lane of bearing frame.
As shown in fig. 3-2 and 3-3, the tray rotating mechanism ii 23 without the dust cover includes a rotating shaft ii 232, a bearing housing ii 233, a bearing ii 234, a bearing plate ii 235 and a dust cover plate ii 236;
the rotation axis II 232 is embedded in the middle hole of the tray frame 21, the bearing seat II is assembled on the tray frame 21, and the bearing II is assembled and matched with the bearing seat II.
As shown in fig. 4-1 to 4-2, the cable tray base is a liftable cable tray base assembly, and the liftable cable tray base assembly comprises a bottom cable tray support 301 and liftable upright posts 302 positioned at four corners of the bottom cable tray support 301, wherein each liftable upright post 302 is provided with a screw rod adjusting system or an oil pressure lifting structure for adjusting the height of the liftable upright post 302;
the prestress rib or rope adjustable speed type rope releasing disc for the wind tower further comprises two speed regulating devices 4 used for controlling the rotating speed of the rotating tray assembly 2 to be too high when the rope is released, the speed regulating devices 4 are of vice structures, the opening and closing of the vice 401 ports are controlled through speed regulating rods 401 on the speed regulating devices 4A or miniature bidirectional telescopic oil cylinders 402 on the speed regulating devices 4B, and therefore friction force is applied to the chassis, and the rotating speed of the rotating tray assembly 2 is controlled.
Wherein, fig. 5 shows the structure of the speed adjusting device 4A, fig. 6 shows the structure of the speed adjusting device 4B, and fig. 7 shows the schematic diagram of the speed adjusting rod 401 of the speed adjusting device 4A;
in mounting, the speed regulating device 4 is mounted on two diagonal lines on the tray frame 21 of the rotary tray assembly 2 (see fig. 1-2).
As a transformation of the embodiment of the invention, the number of layers of the assembled multi-layer supporting disc frame 1 can be increased or reduced, the number of layers n is determined according to the number of prestressed tendons or discs of cables which are required to be simultaneously laid on site according to engineering requirements, and the value range of n is as follows: n is an integer of 2 to 10.
As a transformation of the embodiment of the invention, according to the requirements of a construction site, in a region with large sand blast, the rotary tray assembly 2 can also be composed of a tray rotary mechanism I22 with a flexible dust cover and a tray frame 21, so that sand and dust are effectively isolated from entering the rotary mechanism, a clamping shaft is avoided, and safe work in a working condition region with large sand blast is ensured.
As a conversion of the embodiment of the invention, for the region without sand blast, the rotary tray assembly 2 can be composed of the tray rotary mechanism II 23 without a dust cover and the tray frame 21 according to the condition of the construction site, so as to reduce the manufacturing cost.
Example two
A wind tower prestress rib or cable penetrating construction method comprises the following steps:
the installation construction method for the wind tower prestress rib or rope threading construction of the adjustable speed rope releasing disc for the wind tower prestress rib or rope comprises the following steps:
A. installing a rope placing plate base 3:
leveling the rope laying tray base 3 by adjusting screw rod adjusting systems 3021 or oil pressure jacking structures 3022 which are arranged on the lifting columns 302 at four corners of the bottom rope tray supporting piece 301 and used for adjusting the height of the lifting columns 302, so that the whole rope laying tray base is kept in a horizontal state and lifted to a proper rope laying height;
B. mounting the assemblable multi-layered support frame 1 (see fig. 2-1 to 2-2):
b1, uniformly and annularly distributing the support screw rods 101 at the bottommost layer on the support disc 105 to form a first layer of annular support frame 11;
b2, installing the 2 nd-n layer annular supporting frames 12-1 n (the value range of n is that n is 2-10);
when two ropes or more than three ropes are required to be paid out simultaneously, the 2 nd-n layer annular supporting frames 12-1 n are required to be installed; in FIGS. 1-1 and 2-1, n is equal to 3;
the installation method is as follows: the supporting screw rods 101 are connected through the connecting nuts 103 and are fixedly locked through the locking nuts 104; a partition plate 102 for supporting the rotary tray assembly 2 is arranged between every two layers of annular supporting frames;
C. mounting a rotary tray assembly 2:
the rotary tray assembly 2 is composed of a tray frame 21 and a tray rotating mechanism, in this embodiment, the tray rotating mechanism comprises a tray rotating mechanism I22 with a flexible dust cover 221, which is installed on the bottom layer, and a tray rotating mechanism II 23 without a dust cover, which is installed on the upper layer;
the tray rotary mechanism I22 with the flexible dust cover comprises a flexible dust cover 221, a rotary shaft I222, a bearing seat I223, a bearing I224, a bearing plate I225 and a dust cover plate I226 (see fig. 1-1 and 3-1), and the installation steps are as follows:
c1, embedding a rotating shaft I222 into a middle hole of the tray frame 21;
c2, assembling the bearing seat I223 on the tray frame, and assembling and matching the bearing I224 with the bearing seat I223;
c3, sleeving the flexible dust cover 221 into the outer ring of the bearing seat I223;
c4, assembling and positioning the bearing plate I225 and the bearing seat I223, connecting and sealing the dust cover I221 with the bearing plate I225 positioned at the upper part of the dust cover I and the rotary disk bracket 24 positioned at the lower part of the dust cover I, and finally installing the dust cover I226 on the top surface of the rotary tray (see fig. 3-1);
the tray rotating mechanism II 23 without the dust cover comprises a rotating shaft II 232, a bearing seat II 233, a bearing II 234, a bearing plate II 235 and a dust cover plate II 236 (see figures 1-1, 3-2 and 3-3);
the installation steps are as follows:
c1, embedding a rotating shaft II 232 into a middle hole of the tray frame 21;
c2, assembling the bearing seat II 233 on the tray frame, and assembling and matching the bearing II 234 and the bearing seat II 233;
c3, assembling and positioning a bearing plate II 235 and a bearing seat II 233, and finally, assembling and positioning a dustproof cover plate II 236; mounted to the top surface of the rotating tray;
D. installing prestressed tendons or cable trays: the prestress ribs or the cable trays are stacked in a tray form and placed on a tray frame 21 of the rotary tray assembly 2, and when the cable is pulled, the tray is easily rotated by a tray rotating mechanism;
E. and (4) installing a speed regulating device 4:
the speed regulating device 4 is of a vice structure and is arranged on two diagonal lines on the tray frame 21 of the rotary tray assembly 2, and the opening and closing of the mouth of the vice 402 are controlled by regulating the speed regulating rod 403 or the miniature bidirectional telescopic oil cylinder 405 on the speed regulating device 4, so that friction force is applied to the chassis, and the effect of controlling the rotation speed of the rotary tray assembly 2 is achieved;
F. paying off and rope threading construction: and after the whole rope releasing disc component is assembled, normal rope releasing and threading construction is started, and the rotating speed of the rotating rope disc is regulated by controlling the speed regulating device 4 in the rope releasing process.
As a transformation of the second embodiment of the invention, according to the requirements of a construction site, in a region with large sand blast, the rotary tray assembly 2 can also be composed of a tray rotary mechanism I22 with a flexible dust cover and a tray frame 21, so as to effectively isolate sand and dust from entering the rotary mechanism, avoid a clamping shaft and ensure safe work in a working condition region with large sand blast;
as a conversion of the embodiment of the invention, for the region without sand blast, the rotary tray assembly 2 can be composed of the tray rotary mechanism II 23 without a dust cover and the tray frame 21 according to the condition of the construction site, so as to reduce the manufacturing cost.
Claims (4)
1. The adjustable speed type rope releasing disc comprises a rope releasing disc base and a rotary tray device assembly, wherein the rotary tray device assembly is coaxially and rotatably arranged on the rope releasing disc base, and the rotary tray device assembly is coaxially and rotatably arranged on the rope releasing disc base through an assembled multi-layer supporting frame (1);
the multi-layer support frame (1) capable of being assembled is provided with n layers, and comprises support screws (101), a separation plate (102), connecting nuts (103), locking nuts (104) and support plates (105), wherein the support screws (101) at the bottommost layer are uniformly and annularly distributed on the support plates (105) at the bottom of the multi-layer support frame (1) capable of being assembled to form a first layer of annular support frame (11), and when n cables are required to be simultaneously paid off, the support screws (101) can be connected through the connecting nuts (103) and are fixedly locked through the locking nuts (104); forming n layers of annular supporting frames, wherein a partition plate (102) for supporting the rotary tray assembly (2) is arranged between every two layers of annular supporting frames;
the rotary tray assembly (2) consists of a tray frame (21) and a tray rotating mechanism, and the cable tray (5) is placed on the rotary tray assembly (2) in a tray overlapping way, and the cable tray can be easily rotated by the tray rotating mechanism when being pulled; the value range of n is as follows: n is more than 1 and less than or equal to 10;
the method is characterized in that: the tray rotating mechanism of the rotating tray assembly (2) is a tray rotating mechanism I (22) with flexible dust covers or comprises a tray rotating mechanism I (22) with flexible dust covers, which is arranged at the bottom layer, and a tray rotating mechanism II (23) without dust covers, which is arranged at the upper layer;
the tray rotating mechanism I (22) with the flexible dust cover comprises a flexible dust cover (221), a rotating shaft I (222), a bearing seat I (223), a bearing I (224), a bearing plate I (225) and a dust cover plate I (226);
in the installation state, the rotating shaft I is embedded in a middle hole of the tray frame (21), the bearing seat I is assembled on the tray frame, the bearing I is assembled and matched with the bearing seat I, and the flexible dust cover (221) is sleeved on the outer ring of the bearing seat I;
the tray rotating mechanism II (23) without the dust cover comprises a rotating shaft II (232), a bearing seat II (233), a bearing II (234), a bearing plate II (235) and a dust cover plate II (236);
the rotating shaft is embedded in a middle hole of the tray frame, the bearing seat is assembled on the tray frame, the bearing is assembled and matched with the bearing seat, and the flexible dust cover is sleeved on the outer ring of the bearing seat;
the lifting rope placing disc base comprises a bottom rope disc support (301) and lifting upright posts (302) positioned at four corners of the bottom rope disc support (301), and each lifting upright post (302) is provided with a screw rod adjusting system or an oil pressure lifting structure for adjusting the height of the lifting upright post (302);
the adjustable-speed cable releasing disc for the wind tower further comprises two speed regulating devices (4) used for controlling the rotating speed of the rotating tray assembly (2) to be too high when the cable is released, the speed regulating devices (4) are of vice structures, and the jaw opening and closing of the jaw are controlled through speed regulating rods (403) or miniature bidirectional telescopic cylinders (405) on the speed regulating devices (4), so that friction force is applied to the chassis, and the effect of controlling the rotating speed of the rotating tray assembly (2) is achieved.
2. A method for wind tower prestress rib or cable threading construction is characterized in that: the installation and construction method for wind tower prestress rib or rope threading construction by adopting the speed-adjustable rope releasing disc for the prestress rib or rope of the wind tower according to claim 1 comprises the following steps:
A. installing a rope placing plate base (3):
leveling the rope laying tray base (3) by adjusting a screw adjusting system (3021) or an oil pressure jacking structure (3022) which is arranged on the lifting upright posts (302) at four corners of the bottom rope tray support (301) and is used for adjusting the height of the lifting upright posts (302), so that the whole rope laying tray base is kept in a horizontal state or lifted to a proper rope laying height;
B. mounting an assembled multi-layer support frame (1):
b1, uniformly and annularly distributing the support screw rods at the bottommost layer on a support disc to form a first layer of annular support frame 11;
b2, installing the annular supporting frames of the 2 nd layer to the n th layer;
when two ropes or more than three ropes are required to be paid out simultaneously, the 2 nd-n layer annular supporting frames are required to be installed, and the value range of n is as follows: n is more than 1 and less than or equal to 10;
the installation method is as follows: the supporting screw rods are connected through the connecting nuts, and fixed and locked through the locking nuts; a partition board for supporting the rotary tray component (2) is arranged between every two layers of annular supporting frames;
C. mounting a rotary tray assembly (2):
the rotary tray assembly (2) consists of a tray frame (21) and a tray rotating mechanism, wherein the tray rotating mechanism comprises a tray rotating mechanism I (22) with a flexible dust cover and a tray rotating mechanism II (23) without a dust cover, when the rotary tray assembly (2) is installed, the rotary tray assembly (2) is installed on a separation plate of each layer of annular supporting frame, either the tray rotating mechanism I (22) with the flexible dust cover is adopted, the tray rotating mechanism II (23) without the dust cover is adopted, or the tray rotating mechanism I (22) with the flexible dust cover (221) is adopted, which is installed on the bottom layer, and the tray rotating mechanism II (23) without the dust cover is installed on the upper layer;
D. installing prestressed tendons or cable trays: the prestress ribs or the cable trays are stacked into trays and placed on a tray frame (21) of the rotary tray assembly (2), and when the cable is pulled, the tray is easily rotated by a tray rotating mechanism;
E. installing a speed regulating device (4):
the speed regulating device (4) is of a vice structure, is arranged on two diagonal lines of the tray frame (21) of the rotary tray assembly (2), and controls the opening and closing of the mouth of the vice (402) by regulating a speed regulating rod (403) or a miniature bidirectional telescopic cylinder (405) on the speed regulating device (4), so that friction force is applied to the chassis, and the function of controlling the rotation speed of the rotary tray (2) is achieved;
F. paying off and rope threading construction: and when the whole rope releasing disc component is assembled, normal rope releasing and threading construction is started, and the rotating speed of the rotating tray is regulated by controlling the speed regulating device (4) in the rope releasing process.
3. The method for wind tower prestress rib or cable penetrating construction according to claim 2, which is characterized in that:
in C, installation rotatory tray subassembly (2) step, tray rotary mechanism I (22) with flexible dust cover includes flexible dust cover (221), rotation axis I (222), bearing frame I (223), bearing I (224), bearing plate I (225) and dust cover board I (226), and its installation step is:
c1, embedding a rotating shaft I (222) into a middle hole of a tray frame (21);
c2, assembling the bearing seat I (223) on the tray frame, and assembling and matching the bearing I (224) with the bearing seat I (223);
c3, sleeving the flexible dust cover (221) on the outer ring of the bearing seat I (223);
c4, the bearing plate I (225) and the bearing seat I (223) are assembled and positioned, then the flexible dust cover I (221) is connected and sealed with the upper bearing plate I (225) and the lower rotating disc bracket (24), and finally the dust cover plate I (226) is installed on the top surface of the rotating tray.
4. The method for wind tower prestress rib or cable penetrating construction according to claim 2, which is characterized in that:
in the step C of installing the rotary tray assembly (2), the tray rotary mechanism II (23) without the dust cover comprises a rotary shaft II (232), a bearing seat II (233), a bearing II (234), a bearing plate II (235) and a dust cover plate II (236);
the installation steps are as follows:
c1, embedding a rotating shaft II (232) into a middle hole of the tray frame (21);
c2, assembling a bearing seat II (233) on the tray frame, and assembling and matching a bearing II (234) with the bearing seat II (233);
and C3, assembling and positioning the bearing plate II (235) and the bearing seat II (233), and finally, installing the dustproof cover plate II (236) on the top surface of the rotary tray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910330520.1A CN110002270B (en) | 2019-04-23 | 2019-04-23 | Adjustable speed type rope releasing disc of prestressed tendons or ropes for wind tower and rope penetrating construction method of adjustable speed type rope releasing disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910330520.1A CN110002270B (en) | 2019-04-23 | 2019-04-23 | Adjustable speed type rope releasing disc of prestressed tendons or ropes for wind tower and rope penetrating construction method of adjustable speed type rope releasing disc |
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| Publication Number | Publication Date |
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| CN110002270A CN110002270A (en) | 2019-07-12 |
| CN110002270B true CN110002270B (en) | 2024-01-09 |
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| CN201910330520.1A Active CN110002270B (en) | 2019-04-23 | 2019-04-23 | Adjustable speed type rope releasing disc of prestressed tendons or ropes for wind tower and rope penetrating construction method of adjustable speed type rope releasing disc |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110615314A (en) * | 2019-10-29 | 2019-12-27 | 中建七局第一建筑有限公司 | Tool for wire reel |
| CN112850328A (en) * | 2021-03-19 | 2021-05-28 | 路佃泉 | Flexible supporting axial unwinding device for hank yarns |
| CN115402874A (en) * | 2022-07-19 | 2022-11-29 | 宿迁市建宏塑业有限公司 | Heap wire reel and winding arrangement |
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