CN118183521B - Hoisting tool for pole-mounted transformer - Google Patents

Hoisting tool for pole-mounted transformer Download PDF

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Publication number
CN118183521B
CN118183521B CN202410598093.6A CN202410598093A CN118183521B CN 118183521 B CN118183521 B CN 118183521B CN 202410598093 A CN202410598093 A CN 202410598093A CN 118183521 B CN118183521 B CN 118183521B
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CN
China
Prior art keywords
frame
turnover
pole
sleeve
hinged
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202410598093.6A
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Chinese (zh)
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CN118183521A (en
Inventor
寇行顺
秦福宁
许凯
董万光
魏延路
田保坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaocheng Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
Liaocheng Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Publication date
Application filed by Liaocheng Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical Liaocheng Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority to CN202410598093.6A priority Critical patent/CN118183521B/en
Publication of CN118183521A publication Critical patent/CN118183521A/en
Application granted granted Critical
Publication of CN118183521B publication Critical patent/CN118183521B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/04—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/06—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/707—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic guiding devices for telescopic jibs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/82—Luffing gear
    • B66C23/821—Bracing equipment for booms
    • B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
    • B66C23/828—Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

本发明公开了一种柱上变压器吊装工具，属于柱上变压器安装领域，包括两个底座、与底座铰接的翻转架以及与翻转架上端铰接的连接架，所述底座一端设有下抱箍，下抱箍固定在电杆下部；所述翻转架包括两根翻转臂，两侧的翻转臂通过多个第一连杆连接，所述第一连杆一侧铰接有起重油缸；所述连接架包括两个对称布置的吊臂，所述第一连杆一侧铰接有翻转油缸；两个吊臂的上端均设有连接套，所述连接套内活动连接有支杆，支杆下部设有吊架。本发明利用一个起重油缸实现了变压器的快速、稳定吊装，降低了对作业人员体力和协调能力的要求，提高了工作效率和安全性。同时，该工具还具有良好的适应性和灵活性，能够适应不同地形和作业环境的需求。

The present invention discloses a pole-mounted transformer hoisting tool, which belongs to the field of pole-mounted transformer installation, and comprises two bases, a flip frame hinged to the base, and a connecting frame hinged to the upper end of the flip frame, wherein one end of the base is provided with a lower clamp, and the lower clamp is fixed to the lower part of the pole; the flip frame comprises two flip arms, and the flip arms on both sides are connected by a plurality of first connecting rods, and a lifting cylinder is hinged on one side of the first connecting rod; the connecting frame comprises two symmetrically arranged booms, and a flip cylinder is hinged on one side of the first connecting rod; the upper ends of the two booms are provided with connecting sleeves, and a support rod is movably connected in the connecting sleeve, and a hanger is provided at the lower part of the support rod. The present invention utilizes a lifting cylinder to realize the rapid and stable hoisting of the transformer, reduces the requirements on the physical strength and coordination ability of the operator, and improves the work efficiency and safety. At the same time, the tool also has good adaptability and flexibility, and can adapt to the needs of different terrains and working environments.

Description

Hoisting tool for pole-mounted transformer
Technical Field
The invention belongs to the field of installation of pole-mounted transformers, and particularly relates to a pole-mounted transformer hoisting tool.
Background
Transformers are an indispensable key component in the construction and maintenance of electrical power systems. The power supply is responsible for converting voltage to adapt to different requirements in the power transmission and distribution process, and is also used for realizing impedance matching and safety isolation of a circuit. To ensure efficient operation and stability of the power system, it is generally necessary to hoist the transformer on the pole between two poles and maintain the level thereof, avoiding unnecessary vibrations and stresses during operation.
In areas where the terrain conditions allow, large-scale mechanical equipment such as a crane is generally adopted for hoisting operation of the transformer. These devices have a strong lifting capacity and high operational convenience, and can accomplish accurate installation of the transformer in a short time. However, in mountainous areas, hills or other areas with unsmooth roads and larger gradients, large cranes are difficult to reach the working site, which greatly limits the application range of the crane in transformer hoisting.
To solve this problem, the conventional alternative method is to hoist on a cross arm at the upper part of the transformer stand using a chain hoist. This approach requires multiple ground workers to cooperatively pull the transformer across the side of the gantry to the installation location. Because the weight of the transformer is large, the method has high physical requirements on personnel, and the stability of the transformer is poor in the hoisting process, so that the transformer is easy to shake or deviate, and the safety risk of operation is increased.
In order to improve the safety and the operation efficiency, publication No. CN215626328U proposes a lifting device of a pole-mounted transformer. The device is through articulated swing arm in main staple bolt seat front side, rotates the capstan winch through the capstan winch spanner and can receive and release wire rope, and two wire ropes receive and release in step, and after the steering of fixed smooth wheel, the other end of wire rope pulls the upper portion of two swing arms and plays to rise or fall in step. Although this method can improve the mounting efficiency and stability of the transformer to some extent, there are some problems in practical use.
Specifically, the method requires operators to synchronously retract and release winch wrenches on two telegraph poles, which puts high demands on coordination capacity and operation experience of the operators. Once the winding and unwinding speeds of the two winch wrenches are unequal, the swing arms on the two sides are twisted, and therefore stability and safety of hoisting of the transformer are affected. In addition, manual winding and unwinding winch wrenches have certain requirements on physical strength of operators, and fatigue and misoperation are easy to cause after long-time operation.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a lifting tool for a pole-mounted transformer, which realizes quick and stable lifting of the pole-mounted transformer, reduces the requirements on physical strength and coordination capacity of operators, and improves the working efficiency and safety. Meanwhile, the tool has good adaptability and flexibility, and can adapt to the requirements of different terrains and working environments.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The lifting tool for the pole-mounted transformer comprises two bases, a turnover frame hinged with the bases and a connecting frame hinged with the upper end of the turnover frame, wherein one end of each base is provided with a lower anchor ear which is fixed at the lower part of an electric pole; the turnover frame comprises two turnover arms, the turnover arms on the two sides are connected through a plurality of first connecting rods, one side of each first connecting rod is hinged with a lifting oil cylinder, and the lower end of a piston rod of each lifting oil cylinder is hinged with a bottom plate; the connecting frame comprises two symmetrically arranged suspension arms, the suspension arms are hinged with the overturning arms, the suspension arms on two sides are connected through an upper cross beam and a lower cross beam, one side of the first connecting rod is hinged with an overturning oil cylinder, and a piston rod of the overturning oil cylinder is hinged with the upper cross beam; the upper ends of the two suspension arms are respectively provided with a connecting sleeve, a supporting rod is movably connected in each connecting sleeve, and a hanging bracket is arranged at the lower part of each supporting rod; the hanger comprises a main frame body, hanging chains are connected to four corners of the lower portion of the main frame body, and the lower ends of the hanging chains are connected with lug plates of the transformer through hanging hooks.
Further, the lower part of the overturning arm is hinged with an overturning supporting rod, the lower end of the overturning supporting rod is a free end, a plurality of clamping teeth which are uniformly arranged are arranged on the base, one side of each clamping tooth close to the electric pole is a vertical surface, one side of each clamping tooth far away from the electric pole is an inclined surface, when the lifting oil cylinder drives the overturning frame to overturn, the lower end of the overturning supporting rod is close to one side of the electric pole on the base, and when the lifting oil cylinder stops extending, the lower end of the overturning supporting rod is clamped on one side of the vertical surface of each clamping tooth to support two sides of the overturning frame.
Further, base one end is equipped with the pole vaulting pole, the pole vaulting pole includes the double-end stud, the equal threaded connection in both ends of double-end stud has threaded sleeve, and wherein the threaded sleeve lower extreme of lower part is articulated with the base end, and the threaded sleeve upper end on upper portion articulates there is last staple bolt, go up staple bolt and pole fixed connection.
Further, a counterweight component is arranged on one side of the roll-over stand, the counterweight component comprises a pulley yoke, a rope and a counterweight block, a clamping groove is formed in the lower portion of the pulley yoke and is clamped on the stand, and when the pulley yoke is installed on the stand, the clamping groove is installed on one side close to the roll-over stand; the pulley frame both ends all rotate and are connected with the pulley, rope one end is connected with the roll-over stand upper end, and the other end of rope bypasses the pulley frame and is connected with the balancing weight, the balancing weight upper end is equipped with the couple, and the lower extreme of balancing weight is equipped with the link, and the quantity of balancing weight is selected for use according to the weight of transformer.
Further, the connecting frame further comprises a fixed sleeve, the upper cross beam and the lower cross beam are fixedly connected with the fixed sleeve on two sides, the suspension arm is slidably arranged in the fixed sleeve, and the lower end of the suspension arm is fixedly connected with a second connecting rod; the lower beam is fixedly connected with a telescopic oil cylinder, and the lower end of a piston rod of the telescopic oil cylinder is connected with a second connecting rod.
Further, one end of the first connecting rod is fixedly connected with the overturning arm, the other end of the first connecting rod is a cantilever end, and first sleeves are sleeved outside the cantilever ends of the two first connecting rods; one end of the upper cross beam and one end of the lower cross beam are fixedly connected with the fixed sleeve, the other end of the upper cross beam and the other end of the lower cross beam are cantilever ends, the outer parts of the cantilever ends of the two upper cross beams are sleeved with second sleeves, and the outer parts of the cantilever ends of the two lower cross beams are sleeved with third sleeves; one end of the second connecting rod is fixedly connected with the suspension arm, the other end of the second connecting rod is a suspension arm end, and a fourth sleeve is sleeved outside the suspension arm ends of the two second connecting rods; the two ends of the first sleeve, the second sleeve, the third sleeve and the fourth sleeve are all in threaded connection with fastening knobs.
Further, the link still includes the guide rail, guide rail both ends and branch fixed connection, guide rail lower part swing joint has the coaster, the coaster includes U type frame, and U type frame inboard rotates and is connected with the gyro wheel, and the gyro wheel is mounted on the guide rail, body upper portion is equipped with the fixed plate, and U type frame is connected with the fixed plate.
Furthermore, one side of the U-shaped frame is connected with a positioning knob in a threaded manner, and the tail end of the positioning knob abuts against the guide rail.
Further, each movable grafting of body support body both sides has a expansion bracket, the hanging chain hangs in expansion bracket lower part, body support body four corners department all threaded connection has adjust knob, and adjust knob's end offsets with the expansion bracket.
Further, fixed plate upper portion is equipped with rotating assembly, rotating assembly includes the fixing base, the fixing base both sides are connected with the coaster through a plurality of connecting plates, be equipped with the slide rail on the fixing base, fixing base one side fixedly connected with rotary cylinder, rotary cylinder's piston rod end-to-end connection has the slider, the slider is installed on the slide rail slidingly, slider one side fixedly connected with rack, rack one side meshing has the gear, the middle part fixedly connected with pivot of gear, the pivot middle part rotates with the fixing base to be connected, pivot lower extreme and fixed plate fixed connection.
The beneficial effects of the invention are as follows:
1) According to the invention, the transformer is quickly and stably hoisted by using one lifting oil cylinder, the requirements on physical strength and coordination capacity of operators are reduced, and the working efficiency and safety are improved. Meanwhile, the tool has good adaptability and flexibility, and can adapt to the requirements of different terrains and working environments.
2) The lower part of the turnover arm is provided with the turnover supporting rod, the base is provided with the latch, when the turnover frame is turned over, the lower end of the turnover supporting rod is clamped on one side of the latch, the piston rod of the lifting oil cylinder is contracted firstly and then is extended, the turnover frame is turned over secondarily, the stepping turnover of the turnover frame can be realized by only using the oil cylinder with a short stroke, and the manufacturing and using cost of the lifting tool is reduced.
3) The pole stay bar is arranged on one side of the base, the pole stay bar and the base form a triangular structure, stability of the pole and the hoisting tool is guaranteed, and the phenomenon that the pole is inclined due to oblique pulling force generated by the hoisting tool to the pole by the transformer in the hoisting process is avoided.
4) A counterweight component is arranged on one side of the roll-over stand, and generates tension to the roll-over stand, so that the pressure of the lifting oil cylinder and the roll-over stay bar during operation is reduced.
5) The outside of davit has set up fixed sleeve to set up flexible hydro-cylinder on the bottom end rail, made flexible hydro-cylinder's piston rod and link lower extreme second connecting rod be connected, utilized flexible hydro-cylinder to drive the davit and flexible in fixed sleeve, enlarged lifting device's hoist and mount height, improved lifting device's flexibility.
6) The overturning frame and the connecting frame are designed into a width-adjustable structure, and the width of the lifting tool is adjusted according to the width between two electric poles, so that the application range of the lifting tool is improved.
7) The upper end of the connecting frame is provided with a guide rail, and the guide rail is provided with a pulley, so that the position of the transformer can be conveniently adjusted to meet the requirement of the installation position of the transformer.
8) The rotating assembly is arranged on the fixed plate, so that the angle of the hanging frame can be conveniently adjusted, the difficulty in installing the transformer is further reduced, the flexibility of the hanging frame is further improved, and the efficiency of installing the transformer is improved.
Drawings
Fig. 1 is a schematic diagram of a lifting tool for a pole-mounted transformer according to the present invention.
Fig. 2 is a schematic diagram of another side of the pole-mounted transformer lifting tool of the present invention.
Fig. 3 is a schematic diagram of the installation of a counterweight assembly in a pole-mounted transformer lifting tool of the invention.
Fig. 4 is a schematic diagram of a pulley frame in a pole-mounted transformer lifting tool according to the invention.
Fig. 5 is a schematic diagram showing the assembly of the base and the roll-over stand in the pole-mounted transformer lifting tool according to the present invention.
Fig. 6 is a schematic diagram of a connecting frame in a lifting tool for a pole-mounted transformer according to the present invention.
Fig. 7 is a schematic view of a hanger in a pole-mounted transformer lifting tool according to the present invention.
Fig. 8 is a schematic diagram of a rotating assembly in a pole-mounted transformer lifting tool according to the present invention.
Fig. 9 is a schematic view of an electric pole stay in a pole-mounted transformer lifting tool according to the present invention.
In the figure, 1, an electric pole; 101. a stand; 2. a transformer; 3. a base; 301. a lower hoop; 302. latch teeth; 4. a roll-over stand; 401. a flip arm; 402. a first link; 403. a first sleeve; 404. a lifting oil cylinder; 405. a bottom plate; 406. overturning the stay bar; 5. a connecting frame; 501. a suspension arm; 502. fixing the sleeve; 503. an upper cross beam; 504. a lower cross beam; 505. a second sleeve; 506. a third sleeve; 507. a telescopic oil cylinder; 508. a turnover oil cylinder; 509. a second link; 510. connecting sleeves; 511. a support rod; 512. a guide rail; 513. a fourth sleeve; 6. a hanging bracket; 601. a main frame body; 602. a telescopic frame; 603. a hanging chain; 604. a fixing plate; 605. a pulley; 6051. a U-shaped frame; 6052. a roller; 6053. a positioning knob; 606. a fixing seat; 607. a connecting plate; 608. a rotating assembly; 6081. a rotary cylinder; 6082. a slide rail; 6083. a slide block; 6084. a rack; 6085. a gear; 6086. a rotating shaft; 7. an electric pole stay bar; 701. an upper hoop; 702. a double-ended stud; 703. a threaded sleeve; 8. a counterweight assembly; 801. a rope; 802. balancing weight; 803. a pulley frame; 804. a clamping groove.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 9, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
As shown in fig. 1 and 2, the lifting tool for the pole-mounted transformer comprises two bases 3, a roll-over stand 4 hinged with the bases 3 and a connecting frame 5 hinged with the upper end of the roll-over stand 4, wherein one end of the base 3 is provided with a lower anchor ear 301, and the lower anchor ear 301 is fixed at the lower part of the electric pole 1; in the scheme, the electric pole 1 is used as a fixed matrix, the base 3 is fixedly connected with the electric pole, and the stability of the hoisting tool is ensured; as shown in fig. 5, the roll-over stand 4 includes two roll-over arms 401, the roll-over arms 401 on both sides are connected by a plurality of first connecting rods 402, one side of the first connecting rod 402 is hinged with a lifting oil cylinder 404, and the lower end of a piston rod of the lifting oil cylinder 404 is hinged with a bottom plate 405; the lifting oil cylinder 404 is used as the lifting power of the lifting tool, so that the labor intensity of operators is reduced, and in the scheme, only one lifting oil cylinder 404 is used, so that the synchronism and the stability of the lifting tool in lifting are ensured; as shown in fig. 6, the connecting frame 5 includes two symmetrically arranged suspension arms 501, the suspension arms 501 are hinged with the turning arm 401, the suspension arms 501 on two sides are connected with the lower beam 504 through the upper beam 503, as shown in fig. 5, one side of the first connecting rod 402 is hinged with a turning cylinder 508, and a piston rod of the turning cylinder 508 is hinged with the upper beam 503; the overturning oil cylinder 508 realizes the adjustment of the angle between the overturning frame 4 and the connecting frame 5, improves the flexibility and adaptability of the lifting tool, and is convenient for adjusting the overturning angle of the lifting tool according to the installation requirement of the transformer 2; as shown in fig. 6, the upper ends of the two suspension arms 501 are respectively provided with a connecting sleeve 510, a supporting rod 511 is movably connected in the connecting sleeve 510, and a hanging bracket 6 is arranged at the lower part of the supporting rod 511; as shown in fig. 7, the hanger 6 includes a main frame 601, and hanging chains 603 are connected to four corners of the lower part of the main frame 601, and the lower ends of the hanging chains 603 are connected to the ear plates of the transformer 2 through hooks; four lifting chains 603 are utilized to lift four corners of the transformer, so that stability of the transformer during lifting is guaranteed.
As shown in fig. 5, the lower part of the turnover arm 401 is hinged with a turnover supporting rod 406, the lower end of the turnover supporting rod 406 is a free end, the base 3 is provided with a plurality of uniformly arranged clamping teeth 302, one side of each clamping tooth 302 close to the electric pole is a vertical surface, one side of each clamping tooth 302 far away from the electric pole is an inclined surface, when the lifting oil cylinder 404 drives the turnover frame 4 to turn over, the lower end of the turnover supporting rod 406 is close to one side of the electric pole on the base 3, when the lifting oil cylinder 404 stops extending, the lower end of the turnover supporting rod 406 is clamped at one side of the vertical surface of each clamping tooth 302 to support two sides of the turnover frame 4, at this time, the piston rod of the lifting oil cylinder 404 is controlled to shrink, the lifting oil cylinder 404 rotates around the tail end of the cylinder seat until the clamping teeth are vertical to the ground, at this time, the piston rod of the lifting oil cylinder 404 is controlled to extend again, the turnover frame 4 is turned over for the second time, and the stepping turnover of the turnover frame 4 can be realized by only one short-stroke oil cylinder, and the manufacturing and using cost of the lifting tool is reduced.
As shown in fig. 1, one end of the base 3 is provided with a pole stay bar 7, as shown in fig. 9, the pole stay bar 7 comprises a double-end stud 702, both ends of the double-end stud 702 are connected with threaded sleeves 703 in a threaded manner, wherein the lower end of the threaded sleeve 703 at the lower part is hinged with the tail end of the base 3, the upper end of the threaded sleeve 703 at the upper part is hinged with an upper anchor ear 701, and the upper anchor ear 701 is fixedly connected with the pole 1; the pole stay bar 7 supports the pole 1, so that the phenomenon that the pole is inclined due to oblique pulling force generated by a hoisting tool to the pole in the hoisting process of a transformer is avoided.
As shown in fig. 2 and 3, a counterweight assembly 8 is arranged at one side of the roll-over stand 4, as shown in fig. 4, the counterweight assembly 8 comprises a pulley frame 803, a rope 801 and a counterweight 802, a clamping groove 804 is arranged at the lower part of the pulley frame 803, the clamping groove 804 is clamped on the stand 101, and in order to avoid falling of the pulley frame 803, the clamping groove 804 is arranged at one side close to the roll-over stand 4 when the pulley frame 803 is arranged on the stand 101; pulleys are rotatably connected to two ends of the pulley frame 803, one end of the rope 801 is connected with the upper end of the roll-over stand 4, the other end of the rope 801 bypasses the pulley frame 803 and is connected with the balancing weight 802, a hook is arranged at the upper end of the balancing weight 802, a hanging ring is arranged at the lower end of the balancing weight 802, and the number of the balancing weights 802 is selected according to the weight of the transformer; the weight 802 generates a pulling force on the roll-over stand 4, reducing the pressure during operation of the lift cylinder 404.
As shown in fig. 6, the connecting frame 5 further includes a fixing sleeve 502, the upper beam 503 and the lower beam 504 are fixedly connected with the fixing sleeve 502 on two sides, the suspension arm 501 is slidably mounted in the fixing sleeve 502, and the lower end of the suspension arm 501 is fixedly connected with a second connecting rod 509; the lower beam 504 is fixedly connected with a telescopic oil cylinder 507, and the lower end of a piston rod of the telescopic oil cylinder 507 is connected with a second connecting rod 509; the telescopic oil cylinder 507 is utilized to drive the suspension arm 501 to stretch and retract in the fixed sleeve 502, so that the lifting height of the lifting tool is enlarged, and the flexibility of the lifting tool is improved.
As shown in fig. 5 and 6, one end of the first connecting rod 402 is fixedly connected with the turning arm 401, the other end is a cantilever end, and the outer parts of the cantilever ends of the two first connecting rods 402 are sleeved with a first sleeve 403; one ends of the upper beam 503 and the lower beam 504 are fixedly connected with the fixed sleeve 502, the other ends are cantilever ends, the outer parts of the cantilever ends of the two upper beams 503 are sleeved with a second sleeve 505, and the outer parts of the cantilever ends of the two lower beams 504 are sleeved with a third sleeve 506; one end of the second connecting rod 509 is fixedly connected with the suspension arm 501, the other end is a cantilever end, and a fourth sleeve 513 is sleeved outside the cantilever ends of the two second connecting rods 509; both ends of the first sleeve 403, the second sleeve 505, the third sleeve 506 and the fourth sleeve 513 are connected with fastening knobs in a threaded manner; the telescopic roll-over stand 4 and the connecting frame 5 are convenient for adjusting the width of the lifting tool according to the width between the two electric poles, and the application range of the lifting tool is improved.
As shown in fig. 6, the connecting frame 5 further includes a guide rail 512, two ends of the guide rail 512 are fixedly connected with the supporting rods 511, a pulley 605 is movably connected to the lower portion of the guide rail 512, the pulley 605 includes a U-shaped frame 6051, a roller 6052 is rotatably connected to the inner side of the U-shaped frame 6051, the roller 6052 is mounted on the guide rail 512, a fixing plate 604 is disposed on the upper portion of the main frame body 601, the U-shaped frame 6051 is connected with the fixing plate 604, and the position of the hanger 6 is conveniently adjusted according to the installation position of the transformer.
As shown in fig. 7, a positioning knob 6053 is screwed on one side of the U-shaped frame 6051, and the end of the positioning knob 6053 abuts against the guide rail 512, so that the hanger 6 is fixed after the position of the hanger 6 is adjusted, and the stability of the hanger 6 is ensured.
As shown in fig. 7, two sides of the main frame body 601 are movably inserted with a telescopic frame 602, the hanging chains 603 are suspended at the lower part of the telescopic frame 602, four corners of the main frame body 601 are respectively connected with adjusting knobs in a threaded manner, the tail ends of the adjusting knobs are abutted against the telescopic frame 602, and the telescopic frame 602 realizes the adjustment of the width of the hanging frame 6 so as to adapt to the hanging of transformers with different specifications.
As shown in fig. 7 and 8, a rotating assembly 608 is arranged at the upper part of the fixed plate 604, the rotating assembly 608 comprises a fixed seat 606, two sides of the fixed seat 606 are connected with a pulley 605 through a plurality of connecting plates 607, a sliding rail 6082 is arranged on the fixed seat 606, a rotating oil cylinder 6081 is fixedly connected to one side of the fixed seat 606, a sliding block 6083 is connected to the tail end of a piston rod of the rotating oil cylinder 6081, the sliding block 6083 is slidably arranged on the sliding rail 6082, a rack 6084 is fixedly connected to one side of the sliding block 6083, a gear 6085 is meshed to one side of the rack 6084, a rotating shaft 6086 is fixedly connected to the middle part of the gear 6085, the middle part of the rotating shaft 6086 is rotationally connected with the fixed seat 606, and the lower end of the rotating shaft 6086 is fixedly connected with the fixed plate 604; the rotating assembly 608 facilitates adjusting the angle of the hanger 6, reduces the difficulty of transformer installation, further improves the flexibility of the hanger 6, and improves the efficiency of transformer installation.
When the pole-mounted transformer is hoisted, firstly, the transformer 2 is moved to one side of the electric pole 1, a hoisting tool is connected with the electric pole 1, and in the process of installing the hoisting tool, the widths of the turnover frame 4 and the connecting frame 5 can be adjusted according to the widths of the electric poles at two sides; after the installation of the hoisting tool is completed, the base 3 is connected with the electric pole 1 by the electric pole stay bar 7 so as to ensure the stability of the electric pole and the hoisting tool in the transformer hoisting process; after the installation of the hoisting tool is completed, the lifting oil cylinder 404 is utilized to overturn the overturning frame 4 to a certain angle, so that the tail end of the rope 801 falls on the ground, the balancing weights 802 are connected on the ground one by one in a lying state according to the number of the required balancing weights 802, then the tail end of the rope 801 is connected with a hook of the first balancing weight 802, and then the piston rod of the lifting oil cylinder 404 is controlled to shrink, so that the assembly of the balancing weight assembly 8 is completed.
The initial angles of the roll-over stand 4 and the connecting frame 5 are adjusted according to the height of the transformer 2, the hanging bracket 6 is positioned right above the transformer 2, the extending length of the expansion bracket 602 is adjusted according to the width of the transformer 2, the lower end of the hanging chain 603 is connected with the ear plate of the transformer 2 through a hanging hook, and then the lifting oil cylinder 404 is controlled to extend to lift the transformer 2; in the lifting process of the transformer 2, the lower end of the overturning supporting rod 406 gradually approaches to one side of the electric pole 1, when the lifting oil cylinder 404 stops extending, the lower end of the overturning supporting rod 406 is clamped at one side of the clamping tooth 302 of the base 3, stability of the overturning frame 4 is maintained under the combined action of the counterweight components 8, at the moment, the lifting oil cylinder 404 firstly contracts and extends again, step overturning is carried out on the overturning frame 4, step overturning of the overturning frame 4 can be realized by only using one oil cylinder with a short stroke, and manufacturing and using costs of lifting tools are reduced.
After the turnover frame 4 is turned to a certain angle, the position of the transformer 2 can be finely adjusted by utilizing the turnover oil cylinder 508 and the telescopic oil cylinder 507, meanwhile, the angle of the transformer 2 is adjusted by utilizing the rotating assembly 608, the transformer 2 is adjusted to the installation position, the difficulty of transformer installation is reduced, the flexibility of the hanging frame 6 is further improved, and the efficiency of transformer installation is improved.
The foregoing is merely illustrative and explanatory of the invention, as it is well within the scope of the invention, as it is intended to cover various modifications, additions and substitutions to the specific embodiments disclosed and those skilled in the art, without departing from the scope of the invention as defined in the accompanying claims.

Claims (5)

1. The lifting tool for the pole-mounted transformer comprises two bases, a turnover frame hinged with the bases and a connecting frame hinged with the upper end of the turnover frame, wherein one end of each base is provided with a lower anchor ear which is fixed at the lower part of an electric pole; the turnover frame comprises two turnover arms, the turnover arms on the two sides are connected through a plurality of first connecting rods, and the turnover frame is characterized in that a lifting oil cylinder is hinged to one side, far away from an electric pole, of the first connecting rods, and a bottom plate is hinged to the lower end of a piston rod of the lifting oil cylinder; the connecting frame comprises two suspension arms which are symmetrically arranged, the suspension arms are hinged with the overturning arms, the suspension arms on the two sides are connected through an upper cross beam and a lower cross beam, one side, close to the electric pole, of the first connecting rod is hinged with an overturning oil cylinder, and a piston rod of the overturning oil cylinder is hinged with the upper cross beam; the upper ends of the two suspension arms are respectively provided with a connecting sleeve, a supporting rod is movably connected in each connecting sleeve, and a hanging bracket is arranged at the lower part of each supporting rod; the hanging bracket comprises a main bracket body, hanging chains are connected to four corners of the lower part of the main bracket body, and the lower ends of the hanging chains are connected with lug plates of the transformer through hanging hooks; the lower part of the turnover arm is hinged with a turnover supporting rod, the lower end of the turnover supporting rod is a free end, a plurality of clamping teeth which are uniformly arranged are arranged on the base, one side of each clamping tooth, which is close to the electric pole, is a vertical plane, one side of each clamping tooth, which is far away from the electric pole, is an inclined plane, and when the lifting oil cylinder drives the turnover frame to turn over, the lower end of the turnover supporting rod is close to one side of the electric pole on the base, and when the lifting oil cylinder stops stretching, the lower end of the turnover supporting rod is clamped on one side of the vertical plane of each clamping tooth to support two sides of the turnover frame; the electric pole support rod comprises a double-end stud, wherein both ends of the double-end stud are in threaded connection with threaded sleeves, the lower end of the threaded sleeve at the lower part is hinged with the tail end of the base, and the upper end of the threaded sleeve at the upper part is hinged with an upper anchor ear which is fixedly connected with an electric pole; the turnover frame is characterized in that one side of the turnover frame is provided with a counterweight component, the counterweight component comprises a pulley yoke, a rope and a counterweight block, the lower part of the pulley yoke is provided with a clamping groove, the clamping groove is clamped on the frame, and when the pulley yoke is installed on the frame, the clamping groove is installed on one side close to the turnover frame; the two ends of the pulley frame are respectively and rotatably connected with pulleys, one end of the rope is connected with the upper end of the turnover frame, the other end of the rope bypasses the pulley frame and is connected with the balancing weight, the upper end of the balancing weight is provided with a hook, the lower end of the balancing weight is provided with a hanging ring, and the number of the balancing weights is selected according to the weight of the transformer; the connecting frame further comprises a guide rail, two ends of the guide rail are fixedly connected with the supporting rods, the lower portion of the guide rail is movably connected with a pulley, the pulley comprises a U-shaped frame, the inner side of the U-shaped frame is rotatably connected with rollers, the rollers are mounted on the guide rail, a fixing plate is arranged on the upper portion of the main frame body, and the U-shaped frame is connected with the fixing plate; the fixed plate upper portion is equipped with rotating assembly, rotating assembly includes the fixing base, the fixing base both sides are connected with the coaster through a plurality of connecting plates, be equipped with the slide rail on the fixing base, fixing base one side fixedly connected with rotary cylinder, rotary cylinder's piston rod end-to-end connection has the slider, the slider is installed on the slide rail slidingly, slider one side fixedly connected with rack, rack one side meshing has the gear, the middle part fixedly connected with pivot of gear, the pivot middle part rotates with the fixing base to be connected, pivot lower extreme and fixed plate fixed connection.
2. The hoisting tool for the pole-mounted transformer according to claim 1, wherein the connecting frame further comprises a fixed sleeve, the upper cross beam and the lower cross beam are fixedly connected with the fixed sleeve on two sides, the suspension arm is slidingly arranged in the fixed sleeve, and the lower end of the suspension arm is fixedly connected with a second connecting rod; the lower beam is fixedly connected with a telescopic oil cylinder, and the lower end of a piston rod of the telescopic oil cylinder is connected with a second connecting rod.
3. The pole-mounted transformer lifting tool according to claim 2, wherein one end of the first connecting rod is fixedly connected with the overturning arm, the other end of the first connecting rod is a cantilever end, and the outer parts of the cantilever ends of the two first connecting rods are sleeved with first sleeves; one end of the upper cross beam and one end of the lower cross beam are fixedly connected with the fixed sleeve, the other end of the upper cross beam and the other end of the lower cross beam are cantilever ends, the outer parts of the cantilever ends of the two upper cross beams are sleeved with second sleeves, and the outer parts of the cantilever ends of the two lower cross beams are sleeved with third sleeves; one end of the second connecting rod is fixedly connected with the suspension arm, the other end of the second connecting rod is a suspension arm end, and a fourth sleeve is sleeved outside the suspension arm ends of the two second connecting rods; the two ends of the first sleeve, the second sleeve, the third sleeve and the fourth sleeve are all in threaded connection with fastening knobs.
4. The pole-mounted transformer lifting tool according to claim 1, wherein one side of the U-shaped frame is connected with a positioning knob in a threaded mode, and the tail end of the positioning knob abuts against the guide rail.
5. The hoisting tool for the pole-mounted transformer according to claim 1, wherein two sides of the main frame body are movably inserted with a telescopic frame respectively, the hanging chains are hung on the lower portion of the telescopic frame, four corners of the main frame body are connected with adjusting knobs in a threaded manner, and the tail ends of the adjusting knobs are abutted against the telescopic frame.
CN202410598093.6A 2024-05-15 2024-05-15 Hoisting tool for pole-mounted transformer Active CN118183521B (en)

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CN120183848B (en) * 2025-04-21 2025-09-19 安徽省水利水电勘测设计研究总院股份有限公司 Self-traction hoisting type oil immersed transformer

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