CN220985232U - Six-split large-section wire tension paying-off pulley hanger - Google Patents
Six-split large-section wire tension paying-off pulley hanger Download PDFInfo
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- CN220985232U CN220985232U CN202322327306.5U CN202322327306U CN220985232U CN 220985232 U CN220985232 U CN 220985232U CN 202322327306 U CN202322327306 U CN 202322327306U CN 220985232 U CN220985232 U CN 220985232U
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a six-split large-section wire tension paying-off pulley hanger which mainly comprises two groups of inclined pull plates and a channel steel beam, wherein two ends of the channel steel beam are respectively connected with one group of inclined pull plates through two hole connecting plates; the middle part of the inclined pull plate protrudes; two ends and the middle of the channel steel beam are respectively provided with a pulley hanging ring. The utility model is mainly used for carrying out wire tension spreading in a 3X-one-pull-2 mode, has enough vertical load bearing capacity and stronger integral deformation resistance in the extra-high voltage large-section wire spreading construction process, can prevent the bending deformation of the hardware hanging plate caused by unbalanced torsion when the plate passes through the trolley, and effectively protects the hardware hanging plate. Meanwhile, the device is simple in structure, light in weight, convenient to assemble and disassemble, easy to store and transport and capable of effectively improving the construction efficiency of the overhead wire.
Description
Technical Field
The utility model belongs to the field of power transmission line construction, and particularly relates to a six-split large-section wire tension paying-off pulley hanger.
Background
The construction of the extra-high voltage power transmission and transformation project has important significance for realizing the national 'western electric east delivery' strategy, exerting the complementary interconnection advantage of resources, optimizing the energy structure and the utilization efficiency, strengthening the environmental protection, promoting the trans-regional long-distance large-capacity coordinated synchronous networking power transmission and promoting the upgrading and sustainable development of the power grid technology. The extra-high voltage transmission engineering is applied to 900-1250 m 2 -level large-section multi-split conductors, is suitable for the development trend of large capacity, low loss, energy conservation, environmental protection and networking transmission, is a system engineering with higher process technology and equipment capability, and is one of key technologies for the construction of the extra-high voltage transmission engineering. In recent years, six-split novel large-section steel-cored aluminum stranded wires with the types of JL1/G3A-1250/70, JL1/G2A-1250/100 and the like are adopted for a plurality of ultra-high voltage transmission line sub-conductors in China. Because the lead is too large and heavy, if 4 or 6 sub-leads are pulled once, the traction reaches 320 kN-450 kN, and the capability of domestic stretching equipment and tools at present cannot be met.
According to the existing construction capacity performance parameters of the stretching equipment, the wire tension stretching is performed in a mode of 3 multiplied by 2. Namely, 3 28 ton tractors are matched with 3 '2X 75 kN' large tensioners. This approach requires three trolleys to be suspended simultaneously, and the important consideration is the method of suspending the trolleys, how to bear the large downward load when expanding the enlarged section wire, and the unbalanced torsion when the board passes through the trolleys. In order to solve the problem of balanced suspension of multiple pulleys in a 3X-one-pull-2 paying-off mode, the traditional method adopts tools such as steel wire ropes, round steel pull rods, shackles, porous steel yoke plates and the like to suspend 1 three-wheeled pulley, and each pole is suspended for 3, and the main defects are as follows:
1) The connection length is difficult to control, the weight is large, and the variety of tools and tools is large;
2) The porcelain insulator hardware cannot be directly connected, so that the number of cooperative technicians is large, the high-altitude work load is large, and the efficiency is low;
3) The suspension length is not equal, the height have much difficulty in healing of each trolley is balanced, the observation of the wire sag is difficult, and the installation quality of accessories is affected;
4) The steel wire rope oil is easy to produce secondary pollution.
Part of enterprises adopt a whole steel plate to manufacture an integral hanger in a cutting mode, and three hanging points are designed for hanging the pulley. The method has the defects of large overall weight, difficult transportation and installation, incapability of being connected with the hardware hanging plate in advance, and great time consumption for installing the hardware hanging plate, thereby causing low construction efficiency. The biggest shortcoming is that unbalanced torsion when being difficult to bear the walking board and pass through the slide, and the steel sheet stores pylon is crooked deformation very easily, causes potential threat to construction safety.
Part enterprises adopt angle steel to design a combined hanging frame in a mode of welding or bolting, and the defects of the combined hanging frame mainly include:
1) The monitoring video of the paying-off process is repeatedly analyzed, and the weakest position of the hardware hanging plate (such as the hardware hanging connecting plate in a paying-off pulley hanging rack (patent application number 201620785624.3, publication date 2017, 3 month 29) in China) is found to be located at the 'neck' of the hardware hanging plate. It has been found that there is a distortion phenomenon in the construction. When the various combined hanging designs disclosed in the publication are all carried out, unbalanced torsion when the travelling plate passes through the trolley is not considered, effective measures are not taken to prevent the unbalanced torsion from distorting the hardware hanging plate, and hidden danger is avoided in the process of safely burying the line;
2) The bolts are too large in dosage, and structural parts are too much, so that the bolts are easy to lose in the transportation process and the construction site;
3) The overall weight is large, and the cost performance is low;
4) A plurality of high-altitude personnel are required to be matched with each other on the sub-lead, and the construction efficiency is low;
5) The installation and the dismantling process are time-consuming and labor-consuming, and the personal safety risk level is improved.
Therefore, the applicant proposes the prior patent 'a paying-off pulley hanger', wherein the first hanging plates for hanging the paying-off pulley are connected to the upper cross beam, so that a plurality of paying-off pulleys can be ensured to be positioned at the same height, and a plurality of wires can be ensured to be positioned on the same horizontal plane, thereby being convenient for staff to observe the wire sag and simultaneously being convenient for staff to lift and install; after the wire spreading work is completed, the wire on the paying-off pulley hanging frame is integrally lifted to the hardware hanging yoke plate, and then the wire is fixed on the hardware hanging yoke plate. Nevertheless, the patent still has the problems that the structure is too complex, the neck is easy to twist and deform, and the like.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the six-split large-section wire tension paying-off pulley hanging frame which is simple and portable in structure and easy to assemble, disassemble and use, and can effectively protect the hardware hanging plate from being distorted and deformed.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The six-split large-section wire tension paying-off pulley hanging frame mainly comprises two groups of inclined pull plates and a channel steel beam, and two ends of the channel steel beam are respectively connected with one group of inclined pull plates through two hole connecting plates; the middle part of the inclined pull plate protrudes; two ends and the middle of the channel steel beam are respectively provided with a pulley hanging ring.
Each group of oblique pulling plates is formed by two identical oblique pulling single plates which are arranged symmetrically front and back, connecting holes are arranged at two ends of each oblique pulling single plate, and the two identical oblique pulling single plates are connected through bolts through the connecting holes.
The channel beam is formed by two identical common channel steel in a front-back symmetrical arrangement mode, a fixing hole is formed in the middle of the common channel steel, connecting holes are formed in the two ends of the common channel steel, and the two identical common channel steel are connected through the connecting holes and the fixing holes through bolts.
The two ends and the middle of the common channel steel are respectively provided with a mounting hole, and the pulley hanging ring is arranged between the two common channel steel through the mounting holes by bolts.
The two ends of the two-hole connecting plate are provided with connecting holes which are respectively connected with one end of the cable-stayed plate and one end of the channel steel beam, and the two ends of the two-hole connecting plate are respectively positioned between two identical cable-stayed single plates and between two identical common channel steels.
The bolt is a high-strength bolt with the grade of 8.8 or more.
The connecting hole, the fixed hole and the mounting hole of the common channel steel are provided with reinforcing plates, and the connecting hole of the inclined pulling veneer is provided with reinforcing rings.
The connecting hole and the fixing hole of the common channel steel are arranged on the upper side of the common channel steel, and the mounting hole of the common channel steel is arranged on the lower side of the common channel steel.
The inclined pull plate, the second Kong Lianban, the reinforcing plate and the pulley hanging ring are all made of high-strength steel plates, and the common channel steel is made of Q235B steel.
Aiming at the problems of the prior 3X-one-pull-2 mode of wire tension spreading, the inventor designs a six-split large-section wire tension paying-off pulley hanger which mainly comprises two groups of inclined pull plates and a channel steel beam, wherein two ends of the channel steel beam are respectively connected with one group of inclined pull plates through two hole connecting plates; the middle part of the inclined pull plate protrudes; two ends and the middle of the channel steel beam are respectively provided with a pulley hanging ring. Compared with the prior art, the utility model has the advantages that:
1) The vertical load bearing device has the advantages of being large in vertical load bearing capacity, strong in overall deformation resistance, capable of preventing the armor clamp hanging plate from being distorted and deformed due to unbalanced torsion when the armor clamp is used for sliding, capable of effectively protecting the armor clamp hanging plate and playing a reliable safety protection role.
2) The problems that a plurality of paying-off pulleys are coaxial, balanced and stable in the spreading process of the large-section and multi-split wires, and large downward pressure load is born when the wires with enlarged sections are spread are solved, so that the observation of the wire sag is convenient, quick and accurate.
3) Can be connected with the hardware hanging plate in advance, reduces the construction difficulty, and remarkably saves the installation time and the high-altitude work load of the hardware hanging plate.
4) The structure is simple, the bolt consumption and the component quantity are small, the weight is light, the assembly and the disassembly are convenient, the storage and the transportation are easy, the construction efficiency of the overhead line is effectively improved, and the construction requirements under various natural environments and severe weather conditions can be well met.
5) The auxiliary construction tools and instruments are few in variety, unnecessary purchasing can be reduced, abrasion and scrapping amount of the construction tools and instruments are reduced, and the probability of wire damage is reduced.
Drawings
Fig. 1 is a schematic view of the structure and the use state of the six-split large-section wire tension paying-off pulley hanger of the utility model.
Fig. 2 is a schematic structural view of a cable-stayed veneer in a six-split large-section wire tension paying-off pulley hanger of the utility model.
Fig. 3 is a schematic structural view of a two-hole connection plate in the six-split large-section wire tension paying-off pulley hanger of the present utility model.
Fig. 4 is a schematic structural view of a conventional channel steel in a six-split large-section wire tension paying-off pulley hanger of the present utility model.
Fig. 5 is a schematic structural view of a pulley hanging ring in the six-split large-section wire tension paying-off pulley hanger of the present utility model.
Fig. 6 is a schematic structural view of the hardware hanging plate.
Fig. 7 is one of the reference drawings for the installation and use of the six-split large-section wire tension payout trolley of the present utility model.
Fig. 8 is a second reference diagram for the installation and use of the six-split large-section wire tension payout trolley of the present utility model.
Fig. 9 is a third view of the installation use of the six-split large section wire tension payout trolley of the present utility model.
In the figure: the steel rail comprises a1 inclined pull plate, a 2 two-hole connecting plate, a 3 channel steel cross beam, a 4 pulley hanging ring, a 5 reinforcing plate, a 6 fixing hole, a 7 connecting hole, an 8 mounting hole, a 9 bolt, a 10 fitting hanging plate and an 11 pulley.
Detailed Description
1. Basic structure and principle
As shown in fig. 1 to 5, the six-split large-section wire tension paying-off pulley hanger mainly comprises two groups of cable-stayed plates 1 and a channel steel beam 3, wherein two ends of the channel steel beam are respectively connected with one group of cable-stayed plates through two Kong Lianban. Wherein,
The channel beam is formed by two identical common channel steels (Q235B material) which are arranged symmetrically from front to back, the middle part of the common channel steel is provided with a fixing hole 6, the two ends of the common channel steel are provided with connecting holes 7, and the two identical common channel steels are connected through the connecting holes and the fixing holes by bolts 9. The two ends and the middle of the channel beam are respectively provided with a pulley hanging ring 4 for connecting the pulleys, the two ends and the middle of the common channel beam are respectively provided with a mounting hole 8, and the pulley hanging rings are arranged between the two common channel beams through the mounting holes by bolts. The connecting hole and the fixing hole of the common channel steel are arranged on the upper side of the common channel steel, and the mounting hole of the common channel steel is arranged on the lower side of the common channel steel. The fixing holes are used for being fixed with the hardware hanging plate through bolts, so that a firm integral structure is formed among the channel steel cross beam, the inclined pulling plate and the hardware hanging plate, and the hanging frame has strong integral deformation resistance.
Each group of oblique pulling plates is formed by two identical oblique pulling single plates which are arranged symmetrically front and back, connecting holes are arranged at two ends of each oblique pulling single plate, and the two identical oblique pulling single plates are connected through bolts through the connecting holes. The middle part of the diagonal draw plate protrudes, so that the front diagonal draw single plate and the rear diagonal draw single plate can wrap hanging point parts on two sides of the middle part of the hardware hanging plate to form protection. When the hanger meets unbalanced torsion generated by the travelling plate through the pulley, the structural design can enable the whole gold utensil link plate to be uniformly stressed, and effectively avoid distortion of the gold utensil link plate neck part.
The two ends of the two-hole connecting plate are provided with connecting holes which are respectively connected with one end of the cable-stayed plate and one end of the channel steel beam, and the two ends of the two-hole connecting plate are respectively positioned between two identical cable-stayed single plates and between two identical common channel steels.
For increasing mechanical strength and factor of safety, make the stores pylon have great load that pushes down of enough ability bearing unwrapping wire in-process, oblique arm-tie, two Kong Lianban, stiffening plate, coaster link are processed by high strength steel sheet and are made, and the bolt all uses 8.8 high-strength bolts (or higher grade, for example 12.9 grades), and connecting hole, fixed orifices, the position installation of mounting hole of ordinary channel-section steel set up stiffening plate 5, and the position installation of the connecting hole of drawing a cable is set up the stiffening ring.
2. Methods of use and operation
2.1 Stores pylon mounting (FIGS. 7 and 8)
2.1.1 Transporting all parts and fasteners to a tower position, and installing basic construction tools such as a motor winch, a pulley, a lifting rope, a control rope and the like. It is recommended to use an electric socket wrench to remove the fastener. All bolts must be screwed up after the hanger is installed, so that the partial stress of the rod piece is prevented from being unbalanced and exceeding the bearing limit of the rod piece.
2.1.2 As shown in FIG. 6, the middle hole at the head of the hardware hanging plate 10 is taken as a hanging point, and the hardware hanging plate is hung in the air to be high so as to be convenient for installation and construction.
2.1.3 Assembling two common channel steels into a channel steel beam, and firstly, not screwing bolts.
2.1.4 Mounting two hole connecting plates and inclined pulling plates on two sides of the hardware hanging plate, and screwing nuts after the balance of the two sides is confirmed.
2.1.5 Installing a pulley hanging ring and penetrating a shackle.
2.2 Mounting block (fig. 9)
2.3 Hanging frame lifting
2.3.1 After checking that all components and fasteners have been properly installed, the hanger is slowly lifted off using a motorized wringer and pulleys, during which time care is taken to use the coir rope to control the hanger sway.
2.3.2 The connection point of the hanging frame and the cross arm should be selected on the main material of the cross arm, and the left and right cross arms are arranged in a balanced way, and the connection mode is firm and reliable. 2.3.3 the hanging frame is lifted to a proper height, and then the hardware hanging plate is immediately installed with the insulator string.
2.4 Hanger removal
2.4.1 After all sub-wires have been deployed, the wires are lifted off the pulleys by a wire lifter, removed from the pulley 11, and the pulley block is removed.
2.4.2 Slowly lowering the pulley block to the ground by using a motor winch, removing the connection points of the hanging frame and the cross arm, respectively hanging other components of the hanging frame to the ground, and taking care of using a hand chain block for matching during the removal.
In a word, the six-split large-section wire tension paying-off pulley rack has the characteristics of simple and light structure and easy disassembly and use, is mainly suitable for wire tension paying-off in a 3X-one-pull-2 mode, and can effectively improve construction efficiency.
Firstly, the invention is characterized in that a common channel steel front-back symmetrical arrangement structure is adopted. The structural design can enable a firm integral structure to be formed among the channel steel cross beam, the inclined pull plate and the hardware hanging plate, so that the hanging frame has strong integral deformation resistance.
Secondly, the middle part of one side of the cable-stayed plate is designed to be provided with a local protrusion, so that the distortion of the neck part of the hardware hanging plate is effectively avoided. Can be connected with the hardware hanging plate in advance, reduces the construction difficulty, and remarkably saves the installation time and the high-altitude work load of the hardware hanging plate.
In addition, the structure is simple, the weight is light, the assembly and the disassembly are convenient, and the storage and the transportation are easy. And the construction efficiency of the overhead line is effectively improved. The construction requirements in various natural environments and severe climates can be well met, the varieties of related auxiliary construction tools are few, unnecessary purchasing can be reduced, the abrasion and scrapping amount of the construction tools are reduced, and the probability of wire damage is also reduced.
Claims (9)
1. The six-split large-section wire tension paying-off pulley hanging frame is characterized by mainly comprising two groups of inclined pull plates and a channel steel beam, wherein two ends of the channel steel beam are respectively connected with one group of inclined pull plates through two hole connecting plates; the middle part of the cable-stayed plate protrudes; and two ends and the middle of the channel steel beam are respectively provided with a pulley hanging ring.
2. The six-split large-section wire tension payout trolley hanger of claim 1, wherein: each group of oblique pulling plates is formed by two identical oblique pulling single plates which are arranged symmetrically front and back, connecting holes are arranged at two ends of each oblique pulling single plate, and the two identical oblique pulling single plates are connected through bolts through the connecting holes.
3. The six-split large-section wire tension payout trolley hanger of claim 2, wherein: the channel steel cross beam is formed by symmetrically arranging two identical common channel steels from front to back, the middle part of the common channel steel is provided with a fixing hole, and the two ends of the common channel steel are provided with connecting holes, and the two identical common channel steels are connected through the connecting holes and the fixing holes by bolts.
4. A six-split large-section wire tension payout trolley hanger as claimed in claim 3, wherein: the two ends and the middle of the common channel steel are respectively provided with a mounting hole, and the pulley hanging ring is mounted between the two common channel steel through bolts through the mounting holes.
5. The six-split large-section wire tension payout trolley hanger of claim 4, wherein: and connecting holes are formed in two ends of the two-hole connecting plate and are respectively connected with one end of the cable-stayed plate and one end of the channel steel beam, and two ends of the two-hole connecting plate are respectively positioned between two identical cable-stayed single plates and between two identical common channel steels.
6. The six-split large-section wire tension payout trolley hanger of claim 5, wherein: the bolts are high-strength bolts with the level of 8.8 or more.
7. The six-split large-section wire tension payout trolley hanger of claim 6, wherein: the connecting hole, the fixing hole and the mounting hole of the common channel steel are provided with reinforcing plates, and the connecting hole of the inclined pulling veneer is provided with reinforcing rings.
8. The six-split large-section wire tension payout trolley hanger of claim 7, wherein: the connecting hole and the fixing hole of the common channel steel are arranged on the upper side of the common channel steel, and the mounting hole of the common channel steel is arranged on the lower side of the common channel steel.
9. The six-split large-section wire tension payout trolley hanger of claim 8, wherein: the oblique pulling plate, the second Kong Lianban, the reinforcing plate and the pulley hanging ring are all made of high-strength steel plates, and the common channel steel is made of Q235B steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322327306.5U CN220985232U (en) | 2023-08-29 | 2023-08-29 | Six-split large-section wire tension paying-off pulley hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322327306.5U CN220985232U (en) | 2023-08-29 | 2023-08-29 | Six-split large-section wire tension paying-off pulley hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220985232U true CN220985232U (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322327306.5U Active CN220985232U (en) | 2023-08-29 | 2023-08-29 | Six-split large-section wire tension paying-off pulley hanger |
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| Country | Link |
|---|---|
| CN (1) | CN220985232U (en) |
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2023
- 2023-08-29 CN CN202322327306.5U patent/CN220985232U/en active Active
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