CN114991199B - Combined foundation for power transmission line - Google Patents
Combined foundation for power transmission line Download PDFInfo
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- CN114991199B CN114991199B CN202210929627.XA CN202210929627A CN114991199B CN 114991199 B CN114991199 B CN 114991199B CN 202210929627 A CN202210929627 A CN 202210929627A CN 114991199 B CN114991199 B CN 114991199B
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- adjusting
- energy storage
- cable
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- wheel
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/50—Anchored foundations
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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
- E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
- E04H12/182—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic telescopic
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
Abstract
The invention relates to the technical field of cable installation, in particular to a combined type foundation for a power transmission line. The utility model provides a strain insulator tower combination body that combination formula basis includes three interval setting at least for transmission line, every strain insulator tower combination body includes strain insulator tower, fixed basis and adjusting device. The fixed foundation adopts a prefabricated plate type and spiral anchor combined foundation. The strain tower is fixedly installed on the ground through a fixed foundation. The adjusting device comprises a supporting seat, a first energy storage part, a guide rod, a driving mechanism, a connecting block and a tightening mechanism. According to the combined type foundation for the power transmission line, the first energy storage part is enabled to store energy gradually in the process that the pressure on the guide rod is increased due to icing of the cable, when the energy stored by the first energy storage part meets strong wind, the cable is made to shake by utilizing wind power, ice and snow on the cable are shaken off, the tension tower is prevented from being damaged due to overlarge stress on the cable, the first cable section is tightened after the cable shakes, and the stability of the tension tower is prevented from being influenced due to continuous shaking of the cable.
Description
Technical Field
The invention relates to the technical field of cable installation, in particular to a combined type foundation for a power transmission line.
Background
In order to carry out innovation to become the first power, green to become a common form and sharing to become a fundamental purpose high-quality development concept, the construction of the power transmission line is continuously developed towards the directions of green, energy conservation, quality improvement and efficiency improvement, and the requirements of the green construction on aspects of safety, quality, efficiency, environmental protection, ecology and the like are comprehensively considered. The power transmission line is to use the strain tower in the erection process, the strain tower is an indispensable tower type of the power transmission line, and the strain tower mainly plays a role in bearing the tension and the gravity of a lead in the power transmission line, namely, bearing horizontal load and vertical load and simultaneously playing a role in changing the line erection direction.
At present, the traditional cast-in-place reinforced concrete foundation is mainly adopted to fix the tension tower in the erection process of the tension tower, but the cast-in-place reinforced concrete foundation has complex construction procedures, high engineering safety and quality, difficult control and high energy consumption, long construction period and easy severe damage to the surrounding environment of a construction site, is not suitable for construction period-short engineering, emergency repair engineering and winter cold season construction engineering, and does not meet the direction of green sustainable development.
Disclosure of Invention
The applicant obtains through in-depth analysis that the bearing capacity of the concrete foundation can be greatly improved by fully utilizing the stress performance of the undisturbed soil by adopting the prefabricated plate type and spiral anchor combined foundation; the excavation amount of the foundation pit and the volume of the concrete foundation are reduced, and the foundation is convenient to transport and hoist; meanwhile, the prefabricated foundation can realize standardized design, industrialized processing, modularized construction and mechanized construction, greatly reduces construction procedures, improves engineering quality, reduces consumption of people, materials and machines, avoids damage of cast-in-place reinforced concrete to surrounding vegetation and crops, reduces compensation expenses of trees and crops, reduces engineering cost, and is particularly suitable for construction in cold seasons in winter and emergency repair engineering needing to be put into production quickly. However, ice coating is easily generated on the cable in winter, so that the self weight of the cable is greatly improved, and the large swing of the electric wire in winter and monsoon can also cause pressure on the electric wire foundation, thereby affecting the stability of the tension tower.
The invention provides a combined foundation for a power transmission line, which aims to solve the problem that the stability of a strain tower is easily influenced by icing on the conventional freezing cable.
The combined foundation for the power transmission line adopts the following technical scheme:
a combined foundation for a power transmission line at least comprises three tension tower assemblies arranged at intervals, wherein each tension tower assembly comprises a tension tower, a fixed foundation and an adjusting device; the fixed foundation adopts a prefabricated plate type and spiral anchor combined foundation; the tension tower is fixedly arranged on the ground through a fixed foundation; the adjusting device comprises a supporting seat, a first energy storage part, a guide rod, a driving mechanism, a connecting block and a tightening mechanism; the supporting seat is fixedly arranged on the strain tower; the first energy storage piece is telescopically arranged on the supporting seat in the vertical direction; the guide rod is fixedly arranged at the lower end of the first energy storage part, the cable is connected to each strain tower, the cable between two adjacent strain towers is a cable section, the cable section on the left side is a first cable section, and the cable section on the right side is a second cable section along the left-right direction; the right end of the first cable section is connected to the guide rod through an insulated wire; the driving mechanism is configured to convert pulling of the first cable segment into upward compression energy storage of the first energy storage piece, so that the joint of the first cable segment and the guide rod is driven by the guide rod to lift, and then the guide rod is pulled to move downwards when the energy of the first energy storage piece is released, so that the first cable segment shakes; the connecting block is slidably mounted on the driving mechanism in the up-down direction, the left end of the second cable segment is connected to the connecting block, and the tightening mechanism is configured to further pull the guide rod to descend through the connecting block when the second cable segment shakes, so that the first cable segment is tightened.
Furthermore, the driving mechanism comprises a screw shaft, a one-way energy storage ring, an adjusting block, a second energy storage piece, a limiting mechanism and a transmission mechanism; the spiral shaft is arranged in the front and back direction and can be rotationally arranged around the axis of the spiral shaft; the one-way energy storage ring is sleeved on the outer side of the spiral shaft, one end of the insulating wire is connected with the first cable section, the other end of the insulating wire is connected with the spiral shaft, and the one-way energy storage ring is configured to drive the spiral shaft to synchronously rotate when rotating around the axis of the spiral shaft along the anticlockwise direction; the adjusting block is slidably arranged on the supporting seat along the front-back direction, and the spiral shaft is inserted in the adjusting block; the second energy storage part comprises a first helical wheel and an energy storage barrel; the first screw wheel is sleeved on the outer side of the screw shaft and configured to slide forwards along the screw shaft when the screw shaft rotates around the axis of the first screw wheel; the energy storage cylinder is sleeved on the spiral shaft, the front end of the energy storage cylinder is abutted against the adjusting block, and the rear end of the energy storage cylinder is abutted against the first spiral wheel in an initial state; the limiting mechanism is used for limiting the adjusting block to move back and forth along the screw shaft in an initial state and is configured to release the limitation on the back and forth movement of the adjusting block when the energy storage cylinder is compressed to a preset position; the transmission mechanism converts the forward movement of the adjusting block into upward compression of the first energy storage member.
Furthermore, the combined foundation for the power transmission line also comprises an elastic limiting block; the left side of the spiral shaft is slidably arranged on the supporting seat, the elastic limiting block is telescopically arranged along the left-right direction, the left end of the spiral shaft is arranged on the supporting seat, and the right end of the spiral shaft is abutted against the elastic energy storage ring; the limiting mechanism comprises a third energy storage piece, a limiting stop block, two fourth energy storage pieces, two adjusting rods, a fixing plate and a driving piece; the third energy storage part is telescopically arranged along an axis extending forwards and backwards, the front end of the third energy storage part is fixedly arranged on the supporting seat, and the limit stop is arranged at the rear end of the third energy storage part and comprises two vertically arranged stop strips; the fourth energy storage part is telescopically arranged along the left and right directions, and the ends, far away from each other, of the two energy storage parts are respectively abutted against the two barrier strips in an initial state; the first helical wheel comprises a left half part and a right half part, the adjusting rods are telescopically arranged in the front-back direction, the rear ends of the two adjusting rods are respectively connected with the left half part and the right half part of the first helical wheel, and the front ends of the two adjusting rods are connected to the ends, far away from each other, of the two fourth energy storage components; two limiting jacks are arranged on the supporting seat, an inserted rod is installed at the rear end of each adjusting rod, and the inserted rod is inserted into one limiting jack in an initial state; the fixed plate is arranged on the right side of the adjusting block, the fixed plate is contacted with the right end of the adjusting block, and a clamping groove is arranged at the contact position; a strip-shaped hole is formed in the middle of the adjusting block, the rear end of the screw shaft is slidably arranged towards the left side along the strip-shaped hole, a limiting block is fixedly arranged on the side wall of the screw shaft, and the limiting block penetrates through the adjusting block and is inserted into the clamping groove in the initial state; the driving piece is configured to enable the insertion rod to be separated from the limit insertion hole when the adjusting block moves forwards after the energy storage cylinder is compressed to a preset degree and the adjusting block is configured to enable the limit stop to move forwards to enable the limit stop to be separated from the fourth energy storage piece.
Further, the transmission mechanism comprises an adjusting rack, an adjusting rack rod and an adjusting gear; the adjusting rack is horizontally arranged, and the rear end of the adjusting rack is fixedly arranged on the adjusting block; the adjusting rack rod is vertically arranged, the upper end of the adjusting rack rod is fixedly connected with the lower end of the first energy storage piece, and a first transmission rack is arranged on the adjusting rack rod; the adjusting gear is rotatably arranged on the supporting seat around the axis of the adjusting gear, the lower side of the adjusting gear is meshed with the adjusting rack, and the front side of the adjusting gear is meshed with the adjusting rack.
Further, the tightening mechanism comprises a first ratchet bar, a second ratchet bar, an adjusting plate and a moving plate; the first ratchet bar is arranged on the adjusting toothed bar, the connecting block is slidably arranged on the screw shaft along the up-down direction, a first clamping tooth used for inserting the first ratchet bar is arranged on the connecting block, and the first clamping tooth is positioned below the first ratchet bar in an initial state and is configured to drive the adjusting toothed bar to descend through the first ratchet bar when descending after being inserted into the first ratchet bar; the second ratchet bar is arranged on the adjusting gear rod, an adjusting plate is fixedly connected with the lower side of the front end of the screw shaft, the movable plate is arranged in a telescopic mode in the vertical direction, the upper end of the movable plate is hinged to the adjusting plate, the lower end of the movable plate is slidably mounted on the supporting seat in the left-right direction, second clamping teeth used for being inserted into the second ratchet bar are arranged on the movable plate, and the movable plate is configured to enable the second clamping teeth to be clamped into the second ratchet bar after the screw shaft rotates anticlockwise around the axis of the movable plate.
Further, the driving piece comprises a push rod, a push block, a second spiral wheel and two adjusting teeth; the push rod is horizontally arranged, and the rear end of the push rod is fixedly connected with the adjusting rack; the push block is fixedly arranged on the push rod and used for pushing the limit stop; the second spiral wheel is sleeved at the front end of the push rod and is in spiral fit with the push rod, so that the second spiral wheel is driven to rotate anticlockwise around the axis of the second spiral wheel when the push rod moves forwards; two regulation teeth set up respectively in the upper and lower both sides of second helical wheel, and with the meshing of second helical wheel, the one end that is close to each other of two fourth energy storage spare is connected respectively in one and is adjusted the tooth.
Furthermore, each supporting seat is provided with two supporting wheel sets, each supporting wheel is used for lifting and supporting a cable and an insulated wire, and the right end of the first cable section is connected with the insulated wire after being connected with one supporting wheel; the right-hand member of the first cable section of left end of second cable section is connected, and the insulated wire of being connected with the second cable section is connected with the connecting block after first with another supporting wheel group.
Furthermore, the fixed plates are two and are respectively provided with the left side and the right side of the adjusting block.
Furthermore, a wire guide hole is arranged at the front end of the guide rod and is positioned between one support wheel set and the one-way energy storage ring for supporting the insulated wire.
Further, the locating plate is installed to the front end of supporting seat, is provided with the notch that link up around on every locating plate, and the notch extends along left right direction, and the front end of adjusting the pole runs through the notch and sets up along notch slidable ground.
The invention has the beneficial effects that: according to the combined type foundation for the power transmission line, the first energy storage part is enabled to store energy gradually in the process that the pressure on the guide rod is increased due to icing of the cable, when the energy stored by the first energy storage part meets strong wind, the cable is made to shake by wind power, ice and snow on the cable are shaken off, and the tension tower is prevented from being damaged due to overlarge stress of the cable. By arranging the tightening mechanism, the guide rod is further pulled to descend through the connecting block when the shake of the second cable section is transmitted to the connecting block, so that the first cable section is tightened, the situation that the stability of the tension tower is influenced due to the continuous shake of the cable is prevented, and the combined type foundation for the power transmission line can be restored to the initial position in the absence of wind without manual deicing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a combined foundation for a power transmission line according to the present invention;
fig. 2 is a schematic mechanical diagram of an adjusting device of an embodiment of a modular foundation for a power transmission line according to the invention;
fig. 3 is a partial cross-sectional view of an embodiment of a modular foundation for a power transmission line of the present invention;
fig. 4 is a schematic view of a first energy storage member compressed in an embodiment of the modular foundation for power transmission lines according to the invention;
FIG. 5 is a right side view of FIG. 4;
fig. 6 is a schematic view showing a state in which a connecting block of an embodiment of the combined foundation for power transmission lines of the present invention is raised with respect to an adjusting rack;
FIG. 7 is a right side view of FIG. 6;
fig. 8 is a schematic diagram illustrating a state after a plug rod is separated from a limit jack according to an embodiment of the combined type foundation for a power transmission line of the present invention;
FIG. 9 is a right side view of FIG. 8;
fig. 10 is a schematic view of a state when a connecting block drives an adjusting rack bar to descend according to an embodiment of the combined type foundation for the power transmission line;
fig. 11 is a right side view of fig. 10.
In the figure: 100. a strain tower; 200. fixing a foundation; 300. an adjustment device; 310. a supporting seat; 311. a unidirectional energy storage ring; 312. a screw shaft; 313. an elastic limiting block; 314. inserting a rod; 315. limiting the jacks; 316. an insulating cord; 317. a cable; 320. a drive mechanism; 321. a guide bar; 322. a support wheel set; 323. adjusting the rack bar; 330. a tightening mechanism; 331. a fixed shaft; 332. a third energy storage member; 333. adjusting teeth; 334. a second helical wheel; 335. a fourth energy storage member; 336. connecting blocks; 337. a limit stop block; 341. a first energy storage member; 351. a first helical wheel; 352. an energy storage cylinder; 353. adjusting a rod; 354. an adjusting block; 355. a limiting block; 356. adjusting the rack; 357. an adjusting gear; 358. an adjusting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In an embodiment of the combined foundation for a power transmission line of the present invention, as shown in fig. 1 to 11, the combined foundation for a power transmission line includes at least three tension tower assemblies arranged at intervals, and each tension tower assembly includes a tension tower 100, a fixed foundation 200, and an adjusting device 300. The fixed foundation adopts a prefabricated plate type and spiral anchor combined foundation, and the strain tower 100 is fixedly installed on the ground through the fixed foundation 200. The adjusting device 300 comprises a supporting base 310, a first energy storage member 341, a guiding rod 321, a driving mechanism 320, a connecting block 336 and a tightening mechanism 330, specifically, a plurality of adjusting devices 300 can be arranged on each tension tower 100, and each adjusting device 300 is arranged at a place where the cable 317 passes through. The adjusting device 300 is fixedly mounted on the tension tower 100 through a support seat 310, and the first energy storage member 341 is telescopically mounted on the support seat 310 in the vertical direction; the guide rod 321 is fixedly installed at the lower end of the first energy storage member 341, the cable 317 is connected to each strain tower 100, the cable 317 located between two adjacent strain towers 100 is a cable 317 section, the cable 317 section located on the left side is a first cable 317 section, and the cable 317 section located on the right side is a second cable 317 section along the left-right direction; the right end of the first cable 317 section is connected to the guide rod 321 by an insulated wire 316. The driving mechanism 320 is configured to convert pulling of the first cable 317 section into upward compression energy storage of the first energy storage member 341, so that the connection position of the first cable 317 section and the guide rod 321 is lifted under the driving of the guide rod 321, and then the guide rod 321 is pulled to move downward when the energy of the first energy storage member 341 is released, so that the first cable 317 section is shaken, so that the first energy storage member 341 gradually stores energy in the process that the pressure of the cable 317 on the guide rod 321 is increased due to icing of the cable 317, and after the first energy storage member 341 stores the energy, the cable 317 is made to shake by wind power, so that ice and snow on the cable 317 are shaken off, and the strain tower 100 is prevented from being damaged. The connecting block 336 is slidably mounted on the driving mechanism 320 in the up-down direction, the left end of the second cable 317 section is connected to the connecting block 336, and the tightening mechanism 330 is configured to further pull the guide rod 321 to descend through the connecting block 336 when the second cable 317 section shakes, so that the first cable 317 section is tightened, and the cable 317 is prevented from continuously shaking to affect the stability of the tension tower 100.
In the present embodiment, the driving mechanism 320 includes a screw shaft 312, a one-way energy storage ring 311, an adjusting block 354, a second energy storage member, a limiting mechanism and a transmission mechanism. The screw shaft 312 is provided in the front-rear direction, and is rotatably provided about its own axis. The unidirectional energy storage ring 311 is sleeved outside the spiral shaft 312, one end of the insulated wire 316 is connected with the first cable 317, the other end of the insulated wire is connected with the spiral shaft 312, and the unidirectional energy storage ring 311 is configured to drive the spiral shaft 312 to synchronously rotate when rotating around the axis of the spiral shaft 312 along the counterclockwise direction. The adjusting block 354 is slidably installed to the supporting base 310 in a front-rear direction, and the screw shaft 312 is inserted into the adjusting block 354. The second energy storage member includes a first helical wheel 351 and an energy storage cylinder 352. The first screw wheel 351 is sleeved outside the screw shaft 312 and configured to slide forward along the screw shaft 312 when the screw shaft 312 rotates around its axis; the energy storage cylinder 352 is sleeved on the screw shaft 312, the front end of the energy storage cylinder 352 abuts against the adjusting block 354, and the rear end of the energy storage cylinder 352 abuts against the first screw wheel 351 in an initial state, so that the energy storage cylinder 352 is pushed when the first screw wheel 351 moves forwards, and the energy storage cylinder 352 stores energy. The limiting mechanism is used for limiting the adjusting block 354 to move back and forth along the screw shaft 312 in an initial state, and is configured to release the limitation on the back and forth movement of the adjusting block 354 when the energy storage cylinder 352 is compressed to a preset position, and at the moment, the energy storage cylinder 352 below the adjusting block 354 moves forwards left and right. The transmission mechanism converts the forward movement of the adjusting block 354 into upward compression of the first energy storage member 341, and the lower end of the first energy storage member 341 drives the guide rod 321 to ascend in the process of compressing the first energy storage member 341. When the first energy storage member 341 releases energy, the first energy storage member 341 pulls the guide rod 321 to move downwards, so that the first cable 317 section shakes.
In this embodiment, the combined base for the power transmission line further includes an elastic limiting block 313; the screw shaft 312 is slidably mounted on the support seat 310 to the left, the elastic limit block 313 is telescopically arranged along the left-right direction, the left end is mounted on the support seat 310, and the right end is abutted against the elastic energy storage ring; the limiting mechanism comprises a third energy storage part 332, a limiting stop 337, two fourth energy storage parts 335, two adjusting rods 353, a fixing plate and a driving part; the third energy storage part 332 is telescopically arranged along an axis extending back and forth, the front end of the third energy storage part is fixedly arranged on the supporting seat 310 through a fixing shaft 331, and the limit stop 337 is arranged at the rear end of the third energy storage part 332 and comprises two vertically arranged stop strips; the fourth energy storage part 335 is telescopically arranged along the left-right direction, and the ends of the two energy storage parts far away from each other are respectively abutted against the two barrier strips in the initial state; the first helical wheel 351 comprises a left half part and a right half part, the adjusting rods 353 are telescopically arranged in the front-back direction, the rear ends of the two adjusting rods 353 are respectively connected with the left half part and the right half part of the first helical wheel 351, and the front ends of the two adjusting rods 353 are connected to the ends, far away from each other, of the two fourth energy storage components 335; two limiting insertion holes 315 are formed in the supporting seat 310, an insertion rod 314 is installed at the rear end of each adjusting rod 353, and the insertion rods 314 are inserted into one limiting insertion hole 315 in an initial state; the fixed plate is arranged on the right side of the adjusting block 354, the fixed plate is contacted with the right end of the adjusting block 354, and a clamping groove is arranged at the contact position; a strip-shaped hole is formed in the middle of the adjusting block 354, the rear end of the screw shaft 312 is slidably arranged towards the left side along the strip-shaped hole, a limiting block 355 is fixedly mounted on the side wall of the screw shaft 312, and the limiting block 355 penetrates through the adjusting block 354 and is inserted into the clamping groove in the initial state; the drive member is configured to urge the plunger 314 out of the positive socket 315 upon compression of the accumulator cylinder 352 to a predetermined extent and when the adjustment block 354 is forwardly configured to urge the positive stop 337 forward to disengage the positive stop 337 from the fourth accumulator 335 upon forward movement of the adjustment block 354.
In the present embodiment, the transmission mechanism includes an adjustment rack 356, an adjustment toothed bar 323, and an adjustment gear 357. The adjusting rack 356 is horizontally disposed and is fixedly mounted at a rear end thereof to the adjusting block 354. The adjusting toothed bar 323 is vertically arranged, the upper end of the adjusting toothed bar is fixedly connected with the lower end of the first energy storage member 341, and a first transmission rack is arranged on the adjusting toothed bar. The adjusting gear 357 is rotatably installed to the support base 310 about its axis, and has a lower side engaged with the adjusting rack 356 and a front side engaged with the adjusting rack 323. When the adjusting block 354 moves forward, the adjusting gear 357 is driven by the adjusting gear 323 to rotate around the axis of the adjusting gear 357, and when the adjusting gear 357 rotates, the adjusting gear 323 is driven to ascend, so that the first energy storage member 341 is compressed.
In this embodiment, the tightening mechanism 330 includes a first ratchet bar, a second ratchet bar, an adjustment plate 358, and a moving plate. The first ratchet bar is arranged on the adjusting gear bar 323, the connecting block 336 is slidably mounted on the screw shaft 312 in the up-down direction, and a first latch for inserting the first ratchet bar is arranged on the connecting block, the first latch is located below the first ratchet bar in an initial state, and is configured to drive the adjusting gear bar 323 to descend through the first ratchet bar when descending after being inserted into the first ratchet bar, since the vibration of the second cable 317 section is transmitted, at this time, the second cable 317 section drives the connecting block 336 to move upward relative to the adjusting gear bar 323 through the insulating wire 316, the connecting block 336 drives the first latch thereon to be inserted into the first ratchet bar after ascending, and then drives the adjusting gear bar 323 to descend through the first ratchet bar when the connecting block 336 descends. The second ratchet bar is arranged on the adjusting gear rod 323, the adjusting plate 358 is fixedly connected with the lower side of the front end of the spiral shaft 312, the moving plate is arranged in a telescopic mode in the vertical direction, the upper end of the moving plate is hinged to the adjusting plate 358, the lower end of the moving plate is slidably mounted on the supporting seat 310 in the left-right direction, the moving plate is driven to move rightwards through the adjusting plate 358 when the spiral shaft 312 rotates anticlockwise, second clamping teeth used for inserting the second ratchet bar are arranged on the moving plate, and the second clamping teeth on the moving plate after moving rightwards are clamped into the second ratchet bar, so that the adjusting rod 353 keeps the state, and the shaking of the cable 317 is reduced.
In this embodiment, the driving member comprises a push rod, a push block, a second helical wheel 334 and two adjustment teeth 333. The push rod is horizontally disposed and fixedly connected at the rear end to the adjusting rack 356. The push block is fixedly arranged on the push rod and used for pushing the limit stop 337; the second spiral wheel 334 is sleeved at the front end of the push rod and is in spiral fit with the push rod, so that when the push rod moves forwards, the second spiral wheel 334 is driven to rotate around the axis of the second spiral wheel 334 anticlockwise; the two adjusting teeth 333 are respectively arranged at the upper side and the lower side of the second helical wheel 334 and are meshed with the second helical wheel 334, one end, close to each other, of each of the two fourth energy storage parts 335 is respectively connected to one adjusting tooth 333, when the push rod moves forward along with the adjusting block 354, the second helical wheel 334 is driven to rotate around the spiral groove, and when the second helical wheel 334 rotates, the two adjusting racks 356 are driven to be away from each other, so that the two fourth energy storage parts 335 are compressed to store energy.
After the fourth energy storage member 335 stores energy in a compressed manner, when the adjusting block 354 moves to the foremost end, the pushing block pushes the limit stop 337 to move forward, so that the fourth energy storage member 335 is released from the limit of the limit stop 337, and the two fourth energy storage members 335 drive the two adjusting rods 353 to move away from each other, so that the two first spiral wheels 351 move away from each other and are pushed backward by the restoring force of the adjusting rods 353 to return to the original position.
In this embodiment, each support seat 310 is provided with two support wheel sets 322, each support wheel is used for lifting and supporting the cable 317 and the insulated wire 316, and the right end of the first cable 317 section is connected with one support wheel set 322 and then connected with the insulated wire 316; the left end of the second cable 317 section is connected with the right end of the first cable 317 section, and the insulated wire 316 connected with the second cable 317 section is connected with the connecting block 336 after being contacted with the other supporting wheel set 322.
In this embodiment, two fixing plates are provided, and left and right sides of the adjusting block 354 are respectively provided to increase stability when the adjusting block 354 moves forward.
In this embodiment, the front end of the guide rod 321 is installed with a wire guide hole, which is located between one of the support wheel sets 322 and the unidirectional energy storage ring 311, for supporting the insulated wire 316.
In this embodiment, the locating plate is installed to the front end of supporting seat 310, is provided with the notch that link up around on every locating plate, and the notch extends along left right direction, and the front end of adjusting pole 353 runs through the notch and sets up along notch slidable.
The working principle of the combined foundation for the transmission line provided by the embodiment is as follows:
when the weight of the cable 317 is increased due to icing, the cable 317 pulls the one-way energy storage ring 311 to rotate anticlockwise through the insulating wire 316, the one-way energy storage ring 311 drives the screw shaft 312 to rotate synchronously when rotating anticlockwise, the first screw wheel 351 is pushed forwards under the limitation of the spiral groove when the screw shaft 312 rotates anticlockwise, the energy storage cylinder 352 is compressed at the moment, the inserted rod 314 at the rear end of the adjusting rod 353 is disengaged from the limiting insertion hole 315 when the energy storage cylinder 352 is full of energy, and at the moment, the energy storage cylinder 352 cannot store force any more.
If the weather is windy, the wind will pull the unidirectional energy storage ring 311 to deviate from the original position and move to the left. The unidirectional energy storage ring 311 moves to drive the screw shaft 312, the first screw wheel 351 and the connecting block 336 to move synchronously, the screw shaft 312 drives the limiting block 355 to be drawn out from the clamping groove, so that the adjusting block 354 moves forwards under the release of the energy storage cylinder 352, the adjusting gear 357 is pushed to rotate through the adjusting rack 356 when the adjusting block 354 moves forwards, the adjusting gear 357 rotates to drive the guide rod 321 to move upwards through the adjusting rack 323, and the guide rod 321 moves upwards to drive the first energy storage member 341 to compress and store energy (as shown in fig. 4).
Meanwhile, when the adjusting rack 356 moves forward, the second spiral wheel 334 rotates under the action of the adjusting rod 353, and when the second spiral wheel 334 rotates, the upper and lower adjusting teeth 333 are separated from each other, so that the fourth energy storage member 335 compresses and stores energy. When the adjusting block 354 moves to the foremost end, the pushing block on the push rod pushes the limit stop 337 to move forward, so that the fourth energy storage part 335 is released from the limit of the barrier strip, and drives the two adjusting rods 353 to move away from each other, so that the left half part and the right half part of the two first spiral wheels 351 move away from each other, and are pushed backward by the restoring force of the adjusting rods 353, and the original position is restored.
Which in turn pushes the guide rod 321 downward when the first energy accumulating member 341 is released (as shown in fig. 6). The guide rod 321 drives the adjusting gear rod 323 to move downwards, the adjusting gear rod 323 drives the adjusting gear 357 to rotate and reset, and the adjusting block 354 and the second helical wheel 334 are both reset gradually.
At this time, the shaking of the second cable 317 section is conducted, at this time, the cable 317 drives the connecting block 336 to move upward relative to the adjusting gear lever 323 through the insulated wire 316, when the cable rises to the maximum and starts to fall, the connecting block 336 drives the adjusting gear lever 323 to synchronously fall downward through the first latch and the first ratchet bar, and at this time, since the adjusting gear lever 323 is lower than the initial position, when the adjusting gear lever 323 moves downward, the second latch is latched by the second latch on the moving plate, so that the adjusting gear lever 323 is limited to rise. At this time, due to the downward pressing of the guide rod 321, the cable 317 will be tightened by the support wheel set 322 and the unidirectional energy storage ring 311, and the cable 317 will be prevented from swinging in strong wind.
When the wind stops, the elastic limit block 313 is reset firstly, the spiral shaft 312 is reset at the moment, then the adjusting rod 353 is reset, and the guide rod 321 is reset to the initial position under the pulling of the cable 317. The insertion rod 314 at the rear end of the adjustment lever 353 is snapped into the limit insertion hole 315 again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A combination formula basis for transmission line which characterized in that: the tension tower comprises at least three tension tower assemblies arranged at intervals, wherein each tension tower assembly comprises a tension tower, a fixed foundation and an adjusting device; the fixed foundation adopts a prefabricated plate type and spiral anchor combined foundation; the tension tower is fixedly arranged on the ground through a fixed foundation; the adjusting device comprises a supporting seat, a first energy storage part, a guide rod, a driving mechanism, a connecting block and a tightening mechanism; the supporting seat is fixedly arranged on the strain tower; the first energy storage part is telescopically arranged on the supporting seat in the vertical direction; the guide rod is fixedly arranged at the lower end of the first energy storage part, the cable is connected to each strain tower, the cable between two adjacent strain towers is a cable section, the cable section on the left side is a first cable section, and the cable section on the right side is a second cable section along the left-right direction; the right end of the first cable section is connected to the guide rod through an insulated wire; the driving mechanism is configured to convert pulling of the first cable segment into upward compression energy storage of the first energy storage piece, so that the joint of the first cable segment and the guide rod is driven by the guide rod to lift, and then the guide rod is pulled to move downwards when the energy of the first energy storage piece is released, so that the first cable segment shakes; the connecting block is slidably arranged on the driving mechanism along the up-down direction, the left end of the second cable section is connected to the connecting block, and the tightening mechanism is configured to further pull the guide rod to descend through the connecting block when the second cable section shakes, so that the first cable section is tightened;
the driving mechanism comprises a screw shaft, a one-way energy storage ring, an adjusting block, a second energy storage piece, a limiting mechanism and a transmission mechanism; the spiral shaft is arranged in the front and back direction and can be rotationally arranged around the axis of the spiral shaft; the one-way energy storage ring is sleeved on the outer side of the spiral shaft, one end of the insulating wire is connected with the first cable section, the other end of the insulating wire is connected with the spiral shaft, and the one-way energy storage ring is configured to drive the spiral shaft to synchronously rotate when rotating around the axis of the spiral shaft along the anticlockwise direction; the adjusting block is slidably arranged on the supporting seat along the front-back direction, and the spiral shaft is inserted in the adjusting block; the second energy storage part comprises a first helical wheel and an energy storage barrel; the first screw wheel is sleeved on the outer side of the screw shaft and configured to slide forwards along the screw shaft when the screw shaft rotates around the axis of the first screw wheel; the energy storage cylinder is sleeved on the spiral shaft, the front end of the energy storage cylinder is abutted against the adjusting block, and the rear end of the energy storage cylinder is abutted against the first spiral wheel in an initial state; the limiting mechanism is used for limiting the adjusting block to move back and forth along the screw shaft in an initial state and is configured to release the limitation on the back and forth movement of the adjusting block when the energy storage cylinder is compressed to a preset position; the transmission mechanism converts the forward movement of the adjusting block into upward compression of the first energy storage part;
the combined foundation for the power transmission line further comprises an elastic limiting block; the left side of the spiral shaft is slidably arranged on the supporting seat, the elastic limiting block is telescopically arranged along the left-right direction, the left end of the spiral shaft is arranged on the supporting seat, and the right end of the spiral shaft is abutted against the elastic energy storage ring; the limiting mechanism comprises a third energy storage piece, a limiting stop block, two fourth energy storage pieces, two adjusting rods, a fixing plate and a driving piece; the third energy storage part is telescopically arranged along an axis extending forwards and backwards, the front end of the third energy storage part is fixedly arranged on the supporting seat, and the limit stop is arranged at the rear end of the third energy storage part and comprises two vertically arranged stop strips; the fourth energy storage part is telescopically arranged along the left and right directions, and the ends, far away from each other, of the two energy storage parts are respectively abutted against the two barrier strips in an initial state; the first helical wheel comprises a left half part and a right half part, the adjusting rods are telescopically arranged in the front-back direction, the rear ends of the two adjusting rods are respectively connected with the left half part and the right half part of the first helical wheel, and the front ends of the two adjusting rods are connected to the ends, far away from each other, of the two fourth energy storage components; the supporting seat is provided with two limiting jacks, the rear end of each adjusting rod is provided with an inserted rod, and the inserted rods are inserted into one limiting jack in an initial state; the fixed plate is arranged on the right side of the adjusting block, the fixed plate is contacted with the right end of the adjusting block, and a clamping groove is arranged at the contact position; a strip-shaped hole is formed in the middle of the adjusting block, the rear end of the screw shaft is slidably arranged towards the left side along the strip-shaped hole, a limiting block is fixedly mounted on the side wall of the screw shaft, and the limiting block penetrates through the adjusting block and is inserted into the clamping groove in an initial state; the driving piece is configured to enable the insert rod to be separated from the limit insertion hole after the energy storage cylinder is compressed to a preset degree and the adjusting block is configured to enable the insert rod to be separated from the limit insertion hole when the adjusting block moves forwards, and enable the limit stop to move forwards to enable the limit stop to be separated from the fourth energy storage piece;
the transmission mechanism comprises an adjusting rack, an adjusting rack bar and an adjusting gear; the adjusting rack is horizontally arranged, and the rear end of the adjusting rack is fixedly arranged on the adjusting block; the adjusting toothed bar is vertically arranged, the upper end of the adjusting toothed bar is fixedly connected with the lower end of the first energy storage piece, and a first transmission rack is arranged on the adjusting toothed bar; the adjusting gear is rotatably arranged on the supporting seat around the axis of the adjusting gear, the lower side of the adjusting gear is meshed with the adjusting rack, and the front side of the adjusting gear is meshed with the adjusting rack;
the tightening mechanism comprises a first ratchet bar, a second ratchet bar, an adjusting plate and a moving plate; the first ratchet bar is arranged on the adjusting gear rod, the connecting block is slidably arranged on the screw shaft along the up-down direction, a first clamping tooth used for inserting the first ratchet bar is arranged on the connecting block, and the first clamping tooth is positioned below the first ratchet bar in an initial state and is configured to drive the adjusting gear rod to descend through the first ratchet bar when descending after being inserted into the first ratchet bar; the second ratchet bar is arranged on the adjusting rack rod, the adjusting plate is fixedly connected with the lower side of the front end of the screw shaft, the movable plate is arranged in a telescopic mode in the vertical direction, the upper end of the movable plate is hinged to the adjusting plate, the lower end of the movable plate is slidably mounted on the supporting seat in the left-right direction, second clamping teeth used for being inserted into the second ratchet bar are arranged on the movable plate, and the movable plate is configured to enable the second clamping teeth to be clamped into the second ratchet bar after the screw shaft rotates anticlockwise around the axis of the movable plate.
2. The modular foundation for a power transmission line of claim 1, wherein: the driving piece comprises a push rod, a push block, a second spiral wheel and two adjusting teeth; the push rod is horizontally arranged, and the rear end of the push rod is fixedly connected with the adjusting rack; the push block is fixedly arranged on the push rod and used for pushing the limit stop; the second spiral wheel is sleeved at the front end of the push rod and is in spiral fit with the push rod, so that when the push rod moves forwards, the second spiral wheel is driven to rotate around the axis of the second spiral wheel anticlockwise; two regulation teeth set up respectively in the upper and lower both sides of second helical wheel, and with the meshing of second helical wheel, the one end that is close to each other of two fourth energy storage spare is connected respectively in one and is adjusted the tooth.
3. A combined foundation for a power transmission line according to claim 1, characterized in that: each supporting seat is provided with two supporting wheel sets, each supporting wheel is used for lifting and supporting a cable and an insulated wire, and the right end of the first cable section is connected with the insulated wire after being connected with one supporting wheel; the right-hand member of the first cable section of left end of second cable section is connected, and the insulated wire of being connected with the second cable section is connected with the connecting block after first with another supporting wheel group.
4. The modular foundation for a power transmission line of claim 1, wherein: the fixed plate is two, is provided with the left and right sides of regulating block respectively.
5. The modular foundation for a power transmission line of claim 1, wherein: the front end of the guide rod is provided with a wire guide hole, and the wire guide hole is positioned between one support wheel set and the one-way energy storage ring and is used for supporting the insulated wire.
6. The modular foundation for a power transmission line of claim 1, wherein: the locating plate is installed to the front end of supporting seat, is provided with the notch that link up around on every locating plate, and the notch extends along left right direction, and the front end of adjusting the pole runs through the notch and sets up along notch slidable ground.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210929627.XA CN114991199B (en) | 2022-08-04 | 2022-08-04 | Combined foundation for power transmission line |
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| CN202210929627.XA CN114991199B (en) | 2022-08-04 | 2022-08-04 | Combined foundation for power transmission line |
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| CN114991199B true CN114991199B (en) | 2022-10-25 |
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| CN101692569B (en) * | 2009-09-27 | 2012-07-04 | 张斌 | Automatic ice and snow remover used for high voltage wires |
| CN109936103B (en) * | 2019-04-24 | 2019-10-22 | 淮阴师范学院 | A kind of power Transmission tower cable installation safety protection structure and its application method |
| CN110661225A (en) * | 2019-09-30 | 2020-01-07 | 合肥工业大学 | Cable deicing device |
| CN211018197U (en) * | 2020-01-06 | 2020-07-14 | 许赛赛 | Transmission line defroster |
| CN114583648A (en) * | 2022-03-18 | 2022-06-03 | 李民辉 | Self-running power transmission and distribution device and use method thereof |
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