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CN113023587A - Movable tower crane for electric tower assembly - Google Patents

Movable tower crane for electric tower assembly Download PDF

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Publication number
CN113023587A
CN113023587A CN202110364767.2A CN202110364767A CN113023587A CN 113023587 A CN113023587 A CN 113023587A CN 202110364767 A CN202110364767 A CN 202110364767A CN 113023587 A CN113023587 A CN 113023587A
Authority
CN
China
Prior art keywords
rod body
tower crane
tower
mobile
oil cylinder
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.)
Withdrawn
Application number
CN202110364767.2A
Other languages
Chinese (zh)
Inventor
辛鹏
相振松
翟海飞
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.)
Tysim Piling Equipment Co ltd
Original Assignee
Tysim Piling Equipment Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tysim Piling Equipment Co ltd filed Critical Tysim Piling Equipment Co ltd
Priority to CN202110364767.2A priority Critical patent/CN113023587A/en
Publication of CN113023587A publication Critical patent/CN113023587A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/06Cranes 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/62Constructional features or details
    • B66C23/64Jibs
    • B66C23/70Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/62Constructional features or details
    • B66C23/72Counterweights or supports for balancing lifting couples
    • B66C23/78Supports, e.g. outriggers, for mobile cranes
    • B66C23/80Supports, e.g. outriggers, for mobile cranes hydraulically actuated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/62Constructional features or details
    • B66C23/82Luffing gear

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The invention provides a mobile tower crane for electric tower assembly, which comprises a mobile chassis and a telescopic arm mechanism, wherein the lower part of the mobile chassis is a crawler-type travelling mechanism, the telescopic arm mechanism comprises a plurality of layers of loop bars, the outermost layer of the loop bars is connected with the upper part of the mobile chassis through a parallelogram mechanism and a supporting oil cylinder, and the top end of the innermost layer of the loop bars is connected with a rocker arm; and a hoisting winch is arranged on the outermost layer rod body, a hoisting steel wire rope is wound on the hoisting winch, and the end part of the hoisting steel wire rope bypasses the first pulley at the top of the rocker arm and is connected with a lifting hook. The mobile tower crane for electric tower assembly provided by the invention is in modular design, simple to assemble and manufacture, has mountain walking capability, is convenient to operate in areas with complex terrain, occupies small space after the telescopic arm is contracted, is convenient to transport, and ensures the stability of the telescopic arm in the construction process due to the arrangement of the supporting leg oil cylinder at the bottom of the telescopic arm.

Description

Movable tower crane for electric tower assembly
Technical Field
The invention relates to a tower crane, in particular to a movable tower crane for assembling an electric tower.
Background
The transmission line engineering points are multiple and wide, the manual investment in construction is large, the research and development and investment of construction machinery are insufficient, and high-efficiency and specialized construction machinery is lacked. In recent years, a large number of excellent engineering machinery manufacturing enterprises emerge domestically, and the improvement of the construction mechanization level is promoted. For the construction industry of assembling and erecting the iron tower in the power transmission line engineering, the development and the mechanized construction of construction machinery applying high-efficiency and professional technology are urgently needed. The labor intensity of operators is high, the efficiency is low, the construction period is long, the operation risk is high, and the requirements of environmental protection cannot be fully considered in part of construction modes. With the continuous and rapid development of the economic society, the cost of the human resources for power grid construction is greatly increased, and particularly, first-line constructors are lacked, and wages are continuously increased. Meanwhile, the strong smart power grid puts forward higher requirements on the engineering construction quality and the construction period, the design concept and the method are innovated, the mechanical construction requirements of the whole process of the line are met, the manual investment and the operation risk are reduced, the engineering construction quality and efficiency are further improved, and the economic, environmental and social benefits are improved.
Along with the continuous improvement of the voltage grade of the power transmission line, the tower shape of the power transmission line iron tower is remarkably increased, the weight of a single tower material is large, the requirement on installation precision is high, the quality is tightly controlled, the difficulty of tower assembling construction is increased, and higher requirements are also provided for the tower assembling construction level. Therefore, a reasonable mechanical tower combining mode must be selected by combining actual engineering conditions, and a new schedule is provided for the research, development and utilization of mechanical equipment with stronger universality, better reliability and higher mechanization level.
The mobile crane (including an automobile crane, an all-terrain crane, a crawler crane, an off-road tire crane and the like) is key equipment for construction of heavy projects such as metallurgy, wind power, high-speed rail, nuclear power, petrochemical industry and the like, and plays an irreplaceable role in infrastructure construction. The mobile crane has good maneuverability, is convenient to transfer a field, has larger hoisting weight, is a safe and efficient construction method by using the mobile crane tower in the high tower assembly, but is limited by terrain and road conditions, and has less chance of using the mobile crane in the power transmission line engineering iron tower assembly. The mobile crane comprises a crawler crane, a tire crane, an all-terrain crane and a lorry-mounted crane, and various types of the mobile crane have own characteristics and advantages, and are the most commonly used automobile cranes at present. The automobile crane arranges the lifting, amplitude variation, rotation and operation devices on a tyre type chassis, can flexibly run on a road surface, has better maneuverability, but has high requirements on roads and fields, and has the advantages of larger frame, higher gravity center, higher overall height, more various transmission line engineering points, dispersed operation points, poorer road transportation conditions, and the automobile crane is only applied in small ranges such as urban areas, plains and the like. The crawler crane can run under load and has good maneuvering, cross-country and obstacle crossing performances. However, the SCC800HD of the main arm 55m has a heavy weight (for example, three are used, the weight is 88t, the weight is 27.6t, and the transport width is 3.49m), so that the assembly of the main arm needs to be matched with a crane on site, and the main arm can be applied to areas with rare smoke, such as western plateaus, northern plains and the like.
The diversity of the domestic tower assembling construction machine and method adapts to the requirements of different voltage grades and different tower types under different terrain conditions, and the tower assembling method and technology are continuously innovated and perfected in development, thereby playing an important role in ensuring the safety of tower assembling construction and improving the work efficiency. However, the construction of the tower assembly of the ground double-flat-arm holding rods and the technology of the rocker arm holding rods are only suitable for pile positions with good terrain and convenient traffic, the ground double-flat-arm holding rods and the rocker arm holding rod assembly are adopted in high and large mountainous areas and steep terrain, few application cases are applied in China, and the conditions for popularization and application are lacked. Therefore, the development of key technical research and application of the novel tower assembling equipment for the mountainous terrain is quite necessary, and the research result can effectively solve the problem of difficult tower assembling in parts of terrain complex areas.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a movable tower crane for assembling an electric tower, and solves the problem that no proper tower assembling equipment is available in the electric tower assembling work in the current terrain complex area.
In order to solve the technical problems, the invention provides the following technical scheme:
a movable tower crane for electric tower assembly comprises a movable chassis and a telescopic arm mechanism, wherein the lower part of the movable chassis is a crawler-type travelling mechanism, the telescopic arm mechanism comprises a plurality of layers of loop bars, the outermost layer of the plurality of layers of loop bars is connected with the upper part of the movable chassis through a parallelogram mechanism and a supporting oil cylinder, and the top end of the innermost layer of the plurality of layers of loop bars is connected with a rocker arm; and a hoisting winch is arranged on the outermost layer rod body, a hoisting steel wire rope is wound on the hoisting winch, and the end part of the hoisting steel wire rope bypasses the first pulley at the top of the rocker arm and is connected with a lifting hook.
Furthermore, a telescopic connecting structure is arranged between the two crawler frames of the crawler type travelling mechanism, so that the distance between the crawler belts can be adjusted.
Furthermore, a support oil cylinder is arranged at the bottom of the outermost rod body.
Furthermore, the supporting leg oil cylinder comprises an oil cylinder main body and a telescopic supporting leg, and the edge of the upper end of the oil cylinder main body is hinged with the edge of the lower end of the outermost layer rod body.
Furthermore, the top end of the innermost rod body of the multilayer loop bar is connected with a top rod, the rocker arm is hinged with the top end of the innermost rod body, the outermost rod body is provided with a variable amplitude winch, a variable amplitude steel wire rope is wound on the variable amplitude winch, and the end part of the variable amplitude steel wire rope bypasses a second pulley at the top of the top rod and is connected with the rocker arm.
Further, the ejector rod is detachably connected with the top end of the innermost rod body.
Furthermore, the rocker arms are two and are symmetrically arranged on two sides of the innermost layer rod body.
Further, the top end of the innermost rod body can rotate axially around the central shaft of the innermost rod body.
The movable tower crane for electric tower assembly is in modular design, simple to assemble and manufacture, capable of walking in mountainous regions, convenient to operate in regions with complex terrain, small in occupied space after the telescopic arm is contracted, convenient to transport, and the bottom of the telescopic arm is provided with the supporting leg oil cylinder, so that the stability of the telescopic arm in the construction process is guaranteed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention in an operating state;
fig. 2 is a schematic structural view of the present invention in a transport state.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1 and 2, a mobile tower crane for electric tower erection comprises a mobile chassis 1 and a telescopic arm mechanism 2, wherein the lower part of the mobile chassis 1 is a crawler-type traveling mechanism 3, the telescopic arm mechanism 2 comprises a plurality of layers of loop bars, the outermost layer of the plurality of layers of loop bars is connected with the upper part of the mobile chassis 1 through a parallelogram mechanism 4 and a support oil cylinder 5, and the top ends of the innermost layer of the plurality of layers of loop bars are connected with a rocker arm 6; and a hoisting winch 7 is arranged on the outermost layer rod body, a hoisting steel wire rope is wound on the hoisting winch 7, and the end part of the hoisting steel wire rope bypasses the first pulley at the top of the rocker arm 6 and is connected with a lifting hook.
The working principle is as follows:
the structure and the principle of the movable chassis are similar to those of a rotary drilling rig (common in the market), the telescopic arm mechanism is similar to an automobile telescopic arm crane (refer to the patent publication with the patent number of CN 200910010952), the application combines the advantages of the rotary drilling rig and the automobile telescopic arm crane, the device is transported to a construction site by a transport vehicle, the movement of the telescopic arm under the condition of complex terrain can be completed by utilizing the crawler-type travelling mechanism, the telescopic boom is switched between two states of standing work and lying transportation through the matching of the parallelogram mechanism and the supporting oil cylinder, the telescopic boom is extended to a required height in the standing work state, the hoisting winch is controlled to receive and release the hoisting steel wire rope to realize the hoisting work of tower material, and the telescopic boom is shortened to the shortest length in the lying transportation state, so that the telescopic boom can be automatically moved to other places for construction or transported away from a construction site through a transport vehicle.
The two crawler frames of the crawler type travelling mechanism 3 are of a telescopic connection structure, so that the distance between the crawler belts can be adjusted. And in a transportation or self-walking state, the distance is reduced, the width is reduced, and in a working state, the distance is increased, so that the construction stability is improved.
The bottom of the outermost rod body is provided with a supporting leg oil cylinder 8, and by means of telescopic supporting legs, the bottom of the telescopic arm can be completely supported on the ground, so that construction stability is improved.
The landing leg hydro-cylinder 8 includes hydro-cylinder main part and flexible landing leg, and the upper end edge of hydro-cylinder main part is articulated with the lower extreme edge of the outermost body of rod, guarantees that flexible arm is adjusted to operating condition's in-process by the transport state, and the landing leg is towards ground all the time, prevents that landing leg length from setting up the overlength and causing the landing leg not vertical contact ground promptly, appears flexible arm and does not stand the condition that the or removal chassis is dragged.
The top of the innermost layer body of rod of multilayer loop bar is connected with ejector pin 9, rocking arm 6 is articulated with the top of the innermost layer body of rod, be provided with on the outermost layer body of rod and become width of cloth hoist 10, the winding has the width of cloth wire rope that becomes on the width of cloth hoist 10, the second pulley at ejector pin 9 top is walked around and is connected with rocking arm 6 to the tip that becomes width of cloth wire rope, the receiving and releasing of control width of cloth wire rope, can control the angle of opening of rocking arm 6, can be in the distance between during operation adjustment object that hangs and the flexible arm, prevent the two collision from appearing, the rocking arm can also overturn and paste the side of the arm that stretches.
Ejector pin 9 is connected for dismantling with the top of the inlayer body of rod, can pull down the ejector pin during the transportation, reduces whole length, the transportation of being convenient for.
The two rocker arms 6 are symmetrically arranged on two sides of the innermost rod body, so that two sides of the working process can be hoisted simultaneously, and the construction speed is accelerated.
The top of the innermost layer body of rod can carry out axial rotation around the center pin of the innermost layer body of rod, and the during operation of being convenient for adjusts hoist and mount direction according to actual need, improves the efficiency of construction.
The movable tower crane for electric tower assembly is in modular design, simple to assemble and manufacture, capable of walking in mountainous regions, convenient to operate in regions with complex terrain, small in occupied space after the telescopic arm is contracted, convenient to transport, and the bottom of the telescopic arm is provided with the supporting leg oil cylinder, so that the stability of the telescopic arm in the construction process is guaranteed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a portable tower crane for electricity tower assemblage which characterized in that: the telescopic arm mechanism comprises a plurality of layers of loop bars, wherein the outermost layer of the loop bars is connected with the upper part of the moving chassis through a parallelogram mechanism and a supporting oil cylinder, and the top ends of the innermost layer of the plurality of layers of loop bars are connected with rocker arms;
and a hoisting winch is arranged on the outermost layer rod body, a hoisting steel wire rope is wound on the hoisting winch, and the end part of the hoisting steel wire rope bypasses the first pulley at the top of the rocker arm and is connected with a lifting hook.
2. The mobile tower crane for electric tower erection according to claim 1, wherein: the two crawler frames of the crawler type travelling mechanism are of a telescopic connection structure, so that the distance between the crawler belts can be adjusted.
3. The mobile tower crane for electric tower erection according to claim 1, wherein: and a support oil cylinder is arranged at the bottom of the outermost rod body.
4. A mobile tower crane for electric tower erection according to claim 3, characterized in that: the supporting leg oil cylinder comprises an oil cylinder main body and a telescopic supporting leg, and the edge of the upper end of the oil cylinder main body is hinged with the edge of the lower end of the outermost rod body.
5. The mobile tower crane for electric tower erection according to claim 1, wherein: the top end of the innermost layer rod body of the multilayer loop bar is connected with a top bar, the rocker arm is hinged with the top end of the innermost layer rod body, the outermost layer rod body is provided with an amplitude-variable winch, an amplitude-variable steel wire rope is wound on the amplitude-variable winch, and the end part of the amplitude-variable steel wire rope bypasses a second pulley at the top of the top bar and is connected with the rocker arm.
6. The mobile tower crane for electric tower erection according to claim 1, wherein: the ejector rod is detachably connected with the top end of the innermost rod body.
7. A mobile tower crane for electric tower erection according to claim 1 or 5, characterized in that: the rocking arm has two, the symmetry set up in the both sides of the inlayer body of rod.
8. The mobile tower crane for electric tower erection according to claim 1, wherein: the top end of the innermost layer rod body can rotate axially around the central shaft of the innermost layer rod body.
CN202110364767.2A 2021-04-06 2021-04-06 Movable tower crane for electric tower assembly Withdrawn CN113023587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110364767.2A CN113023587A (en) 2021-04-06 2021-04-06 Movable tower crane for electric tower assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110364767.2A CN113023587A (en) 2021-04-06 2021-04-06 Movable tower crane for electric tower assembly

Publications (1)

Publication Number Publication Date
CN113023587A true CN113023587A (en) 2021-06-25

Family

ID=76453774

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110364767.2A Withdrawn CN113023587A (en) 2021-04-06 2021-04-06 Movable tower crane for electric tower assembly

Country Status (1)

Country Link
CN (1) CN113023587A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115324416A (en) * 2022-03-14 2022-11-11 中铁一局集团电务工程有限公司 Integral hoisting construction process for iron tower
CN118239394A (en) * 2024-05-24 2024-06-25 华东送变电工程有限公司 Hoisting device for beam of ultra-high voltage electric tower

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115324416A (en) * 2022-03-14 2022-11-11 中铁一局集团电务工程有限公司 Integral hoisting construction process for iron tower
CN118239394A (en) * 2024-05-24 2024-06-25 华东送变电工程有限公司 Hoisting device for beam of ultra-high voltage electric tower

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WW01 Invention patent application withdrawn after publication

Application publication date: 20210625

WW01 Invention patent application withdrawn after publication