KR20150008532A - Lifting apparatus of crane - Google Patents

Lifting apparatus of crane Download PDF

Info

Publication number
KR20150008532A
KR20150008532A KR20130082567A KR20130082567A KR20150008532A KR 20150008532 A KR20150008532 A KR 20150008532A KR 20130082567 A KR20130082567 A KR 20130082567A KR 20130082567 A KR20130082567 A KR 20130082567A KR 20150008532 A KR20150008532 A KR 20150008532A
Authority
KR
South Korea
Prior art keywords
trolley
crane
drum
lifting beam
lifting
Prior art date
Application number
KR20130082567A
Other languages
Korean (ko)
Inventor
박정연
Original Assignee
현대중공업 주식회사
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 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR20130082567A priority Critical patent/KR20150008532A/en
Publication of KR20150008532A publication Critical patent/KR20150008532A/en

Links

Images

Classifications

    • 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
    • B66C1/14—Slings with hooks
    • 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
    • B66C1/16—Slings with load-engaging platforms or frameworks
    • 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
    • B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
    • B66C13/14—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices to load-engaging elements or motors associated therewith
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/01—General aspects of mobile cranes, overhead travelling cranes, gantry cranes, loading bridges, cranes for building ships on slipways, cranes for foundries or cranes for public works
    • B66C2700/011—Cable cranes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Abstract

According to the present invention, a lifting apparatus of a crane is used by being connected to the hook of the crane through a wire rope, and comprises: a lifting beam having lugs installed to be fixed to both ends thereof and used to fasten the wire rope to be connected to the crane; a pair of rail grooves formed on the upper surface of the lifting beam in parallel; first and second trolleys installed to be able to move along the rail grooves on the upper surface of the lifting beam; and first and second hooks used to fasten the lugs of a to-be-worked object by being installed to be extended from the first and second trolleys, respectively. A distance between the first and second trolleys can be adjusted according to a distance between the lugs of a to-be-worked object, which are fastened to the first and second hooks. Therefore, according to the present invention, the lifting apparatus of the crane has an improved and extended structure to be commonly used for various to-be-worked objects, thereby reducing manufacturing costs and improving productivity and work efficiency in the processes of handling, transporting, and assembling the to-be-worked objects using the crane.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a lifting device for a crane,

The present invention relates to a crane, and more particularly to a lifting device for a crane.

A crane is a machine that hinges a workpiece using power and carries it up and down, back and forth, left and right, and is also called a crane. These cranes are used in various fields such as wind power generation, plant, shipbuilding, and engine, and can be used for assembling and transporting heavier workpieces than hoists or chain blocks.

Examples of the operation of the crane include a hoisting operation for lifting and lowering a workpiece, a driving operation for moving the workpiece horizontally, a traveling operation, a traversing operation, a turning operation, and a pulling operation. .

Generally, when the work to be handled is heavy and the structure is large, a lifting beam is installed between the crane and the workpiece to prevent the workpiece from being biased.

1 is a view illustrating a lifting beam of a conventional crane.

As shown in Fig. 1, the lifting beam 10 is bound to the hook 20 of the crane. A wire rope (not shown) may be disposed on the lug 11 provided on the bottom surface of the lifting beam 10, and the workpiece can be hung on the wire rope.

By using such a lifting beam, it is possible to distribute the load more evenly when the workpiece is conveyed, and to prevent it from being shifted due to external impact or vibration.

However, since a conventional lifting beam is provided for each single workpiece, a different lifting beam for each workpiece must be manufactured and used for replacement, resulting in an increase in manufacturing cost and a decrease in productivity and work efficiency .

KR 20-0458327 Y1, Published on: 2011. 01. 06, Name: Crane lift beam

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the problems of the prior art as described above and it is an object of the present invention to provide an improved / extended structure for common use for various works, And to provide a lifting device for a crane that can reduce the manufacturing cost in the assembling process and improve productivity and work efficiency.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

In order to accomplish the above object, a lifting device for a crane according to the present invention is a lifting device connected to a hook of a crane through a wire rope, wherein lugs for binding a wire rope to be connected to the crane are fixedly installed Lifting beam; A pair of rail grooves formed parallel to an upper surface of the lifting beam; First and second trolleys installed to be movable along a pair of rail grooves on the upper surface of the lifting beam; And first and second hooks extending from the first and second trolleys, respectively, so as to bind the lugs of the workpiece, wherein the first and second hooks are connected to the first and second hooks, The distance between the first trolley and the second trolley can be adjusted.

Each of the first trolley and the second trolley includes a drum having a rotary shaft and a pair of rollers installed on both sides thereof; Guide members installed on both sides of the drum; A pair of rollers provided on the drum are connected to a pair of upper surfaces of the lifting beams, the pair of rollers being provided on both sides of the guide members such that the pair of rollers are arranged in a direction parallel to the rotation axis of the drum, The trolley with the drum is moved in the left and right directions.

The drum of each of the first trolley and the second trolley may be wound with a wire rope, and one or more motors may be interlocked to rotate the rotary shaft of the drum to wind or unwind the wound wire rope.

The passive stopper may be formed on the upper surface of the lifting beam so that each of the first trolley and the second trolley can be fixed and supported at an arbitrary position corresponding to the interval between the lugs of the workpiece.

Each of the first trolley and the second trolley may be provided with a position measuring sensor for controlling the positions of the first trolley and the second trolley to equally spaced from the center position of the lifting beam.

According to the lifting device of the crane according to the present invention, by applying the improved / extended structure for common use to various works, it is possible to reduce the manufacturing cost in the handling / transportation / assembly process of the work using the crane, The efficiency can be improved.

1 is a view illustrating a lifting beam of a conventional crane.
2 is a perspective view schematically showing a lifting device of a crane according to an embodiment of the present invention;
3 is a side view showing the lifting device of the crane shown in Fig.
Fig. 4 is a cross-sectional view of the trolley along line I-I 'shown in Fig. 3;
5 is a view illustrating a method of adjusting the distance between the trolleys shown in FIG.

Hereinafter, a lifting device for a crane according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view schematically showing a lifting device of a crane according to an embodiment of the present invention, FIG. 3 is a side view showing a lifting device of the crane shown in FIG. 2, FIG. 4 is a cross- Sectional view of the trolley.

2 to 4, the lifting device for a crane according to an embodiment of the present invention includes a lifting beam 100, a pair of rail grooves 110 formed on the upper surface of the lifting beam 100, A pair of trolleys 120, 220 running along a pair of rail grooves 110 and hooks 130, 230 extending therefrom.

Lugs 101 for fixing a wire rope (L) connected to a hook of a crane are fixed to both ends of the lifting beam 100 in the longitudinal direction. The lifting beam 100 is fixed by a pin or the like so as to be caught by the hook of the crane through the wire rope bound to the lugs 101 on the upper surface and not to be arbitrarily released.

A pair of rail grooves 110 are formed in parallel on the upper surface of the lifting beam 100 along the longitudinal direction and are movable along a pair of rail grooves 110 on the upper surface of the lifting beam 100 A first trolley 120 and a second trolley 220 are installed. And a first hook 130 and a second hook 230 extending from the first trolley 120 and the first trolley 220 are connected to the lower side thereof.

The first trolley 120 and the second trolley 220 described above are designed to be movable to a position connected to each lug of the workpiece.

The workpiece can be caught on the lifting beam 100 via wire ropes connecting its hooks 130 and 230 of its lifting device formed on one side with the lifting beam 100, So that the work can be transferred vertically, backward and laterally, and laterally to the hook of the crane.

The distance between the first trolley 120 and the first trolley 220 can be adjusted according to the distance between the lugs provided on one side of the workpiece bound to the first hook 130 and the second hook 230 .

The distance between the first trolley 120 and the first trolley 220 and the distance between the first trolley 120 and the first trolley 220 are appropriately set in accordance with the distance between the lugs of the work to be handled. 1 hooks 130 and the lugs of the workpiece bound to the second hook 230 correspond to each other.

Specifically, each of the first trolley 120 and the first trolley 220 according to one embodiment includes a drum 121 configured to be rotatable so as to run along the rail groove 110, Guide members 122 provided on the lower side, and a spread beam 123 on the lower side.

The drum 121 has a central rotation axis 121_1 arranged in the width direction of the lifting beam 100 and a pair of rollers 121_2 provided on both sides thereof. Guide members 122 are formed on both sides of the drum 121. A coupling hole is formed in the lower portion of each guide member 122 so that a wire rope or a chain can be hooked. A lug 123_1 having a coupling hole is formed at both ends of the upper surface of the spread beam 123. The coupling holes in the lower part of the guide member 122 and the coupling holes in the upper part of the spread beam 123 are coupled to each other via the wire rope or chain so that both ends of the spread beam 123 are connected to the lower side of the guide members 122 And is disposed in a direction parallel to the rotation axis 121_1 of the drum 121. [

2, each of the first trolley 120 and the first trolley 220 can be fixed to an upper surface of the lifting beam 100 at an arbitrary position corresponding to the interval between the lugs of the workpiece, The passive stopper 135 can be formed.

According to this configuration, it is possible to implement a lifting device usable for handling various workpieces (for example, electric and mechanical equipment of less than 10 tons) by improving / supplementing the structure of the lifting beam that has been conventionally used for individual products.

The first trolley 120 and the first trolley 220 are mounted on the lifting beam 100 so as to face each other and the gap between the two trolleys 120 and 220 fastened to the lug of the work is within a certain range So that the lifting device can be commonly used for various works having various lug spacings to carry out the carrying / assembling work for them.

5 is a view illustrating a method of adjusting the distance between the trolleys shown in FIG.

Since the pair of rollers 121_2 provided on the drum 121 are rolled while being in contact with the pair of the rail grooves 110 on the upper surface of the lifting beam 100 in the structure of the lifting device described above, The trolley 120 or 220 having the trolley 121 can be moved laterally along the longitudinal direction.

5, a wire rope L is wound on a drum 121 provided in each of the first trolley 120 and the first trolley 220, and a drum 121 are rotated so that one or more small motors 150 that wind or unwind the wound wire rope L are interlocked.

A driving shaft 140 is disposed at one side of the lifting beam 100. A motor 150 is coupled to the driving shaft 140. The driving shaft 140 and the drum 121 are rotated in interlock with each other, The position of the trolley 120 or 220 can be changed by winding or loosening the wire rope L.

That is, when the motor 150 is driven, the driving shaft 140 and the drum 121 rotate in conjunction with each other, so that the trolley 120 or 220 having the drum 121 travels to the left or the right, and the lifting beam 100 The position of the trolley 120 or 220 relative to the center position C L of the trolley 120 is different.

In FIG. 5, x represents the distance between the center position (C L ) and the trolley (120 or 220). This value can be adjusted within a certain range by the position of the trolley 120 or 220.

In addition, since the center position C L of the lifting beam 100 must lie centrally between the lugs attached to the workpiece, the first trolley 120 and the first trolley 220, respectively, A position measuring sensor 160 for controlling the position of the trolley 120 and the first trolley 220 to be equally spaced from the center position C L of the lifting beam 100 may be additionally utilized .

The construction of the lifting device of the crane according to the present invention is not limited to the above-described embodiment, but can be variously modified and carried out within the scope of the technical idea of the present invention.

100: lifting beam, 101: lug,
110: rail groove, 120, 220: trolley,
121: drum, 121_1: rotating shaft,
121_2: roller, 122: guide member,
123: spread beam, 130, 230: hook,
135: passive stopper, 140: drive shaft,
150: motor, 160: position measuring sensor,
L: Wire rope

Claims (5)

A lifting apparatus for use in connection with a hook of a crane through a wire rope,
A lifting beam fixedly installed at both ends thereof to fix the wire rope to be connected to the crane;
A pair of rail grooves formed parallel to an upper surface of the lifting beam;
First and second trolleys installed to be movable along a pair of rail grooves on the upper surface of the lifting beam; And
And first and second hooks respectively extending from the first and second trolleys so as to bind the lugs of the work,
Wherein the distance between the first trolley and the second trolley is adjustable according to the distance between the lugs of the workpiece bound to the first and second hooks.
2. The apparatus of claim 1, wherein each of the first trolley and the second trolley comprises:
A drum having a rotary shaft and a pair of rollers installed on both sides thereof; Guide members installed on both sides of the drum; And a spreading beam connected to a lower side of the guide members at both ends through a wire rope or a chain and installed in a direction parallel to the rotation axis of the drum,
Wherein a pair of rollers provided on the drum are moved in a state of being in contact with a pair of rail grooves on the upper surface of the lifting beam, so that the trolley having the drum is moved to the left and right.
3. The method of claim 2,
Wherein the drum of each of the first trolley and the second trolley is wound with a wire rope and at least one motor interlocked with the drum rotates the rotary shaft of the drum to wind or unwind the wound wire rope. Lifting device of crane.
The method according to claim 1,
Wherein a passive stopper is formed on the upper surface of the lifting beam so that each of the first trolley and the second trolley can be fixed and supported at an arbitrary position corresponding to the interval between the lugs of the workpiece.
The method according to claim 1,
Wherein each of the first trolley and the second trolley is provided with a position measuring sensor for controlling the positions of the first trolley and the second trolley to be equally spaced from the center position of the lifting beam. Lifting device.
KR20130082567A 2013-07-15 2013-07-15 Lifting apparatus of crane KR20150008532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20130082567A KR20150008532A (en) 2013-07-15 2013-07-15 Lifting apparatus of crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20130082567A KR20150008532A (en) 2013-07-15 2013-07-15 Lifting apparatus of crane

Publications (1)

Publication Number Publication Date
KR20150008532A true KR20150008532A (en) 2015-01-23

Family

ID=52572062

Family Applications (1)

Application Number Title Priority Date Filing Date
KR20130082567A KR20150008532A (en) 2013-07-15 2013-07-15 Lifting apparatus of crane

Country Status (1)

Country Link
KR (1) KR20150008532A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101585858B1 (en) 2015-08-18 2016-01-15 (주)동아 에이치아이 crane
CN108609485A (en) * 2018-05-17 2018-10-02 纽科伦（新乡）起重机有限公司 A kind of crane lifting assembling large-sized object suspender
CN108910719A (en) * 2018-09-19 2018-11-30 德州海天机电科技有限公司 A kind of lightweight wall plate plate crane
CN112079241A (en) * 2020-09-14 2020-12-15 大连船用柴油机有限公司 Method for hoisting auxiliary blower of high-power low-speed diesel engine
KR102366998B1 (en) 2021-02-02 2022-02-24 주식회사 파워엠엔씨 Lifting Apparatus for Crain
CN114314407A (en) * 2021-12-31 2022-04-12 新乡学院 Centering hoist device that multi freedom was adjusted
CN115401437A (en) * 2022-09-23 2022-11-29 江铃汽车股份有限公司 Light truck container or breast board dismouting tool equipment

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101585858B1 (en) 2015-08-18 2016-01-15 (주)동아 에이치아이 crane
CN108609485A (en) * 2018-05-17 2018-10-02 纽科伦（新乡）起重机有限公司 A kind of crane lifting assembling large-sized object suspender
CN108910719A (en) * 2018-09-19 2018-11-30 德州海天机电科技有限公司 A kind of lightweight wall plate plate crane
CN108910719B (en) * 2018-09-19 2024-01-05 德州海天机电科技有限公司 Light wallboard hanging machine
CN112079241A (en) * 2020-09-14 2020-12-15 大连船用柴油机有限公司 Method for hoisting auxiliary blower of high-power low-speed diesel engine
KR102366998B1 (en) 2021-02-02 2022-02-24 주식회사 파워엠엔씨 Lifting Apparatus for Crain
CN114314407A (en) * 2021-12-31 2022-04-12 新乡学院 Centering hoist device that multi freedom was adjusted
CN115401437A (en) * 2022-09-23 2022-11-29 江铃汽车股份有限公司 Light truck container or breast board dismouting tool equipment
CN115401437B (en) * 2022-09-23 2024-02-09 江铃汽车股份有限公司 Light truck packing box or breast board dismouting tool equipment

Similar Documents

Publication Publication Date Title
KR20150008532A (en) Lifting apparatus of crane
US9016486B2 (en) Traveling crane having traveler and hoisting winch
EP2962977B1 (en) Gantry crane for handling containers
JP5518057B2 (en) Winding machine combination
KR100831070B1 (en) Turning device for hoist
KR101657353B1 (en) Crane
CN107662885A (en) One kind walking lifting boat car
KR100847906B1 (en) Crane
KR200424489Y1 (en) Single-rail Type crain structure
CN108083085B (en) Lifting appliance upper frame, lifting mechanism and crane
JP6825774B2 (en) How to replace the unloader and its grab bucket
KR100723643B1 (en) Turning device for hoist
CN206901604U (en) Double-hung rotation vehicle of crane
CN102153017B (en) Bridge crane trolley for mine
CN202400744U (en) Double-beam double-suspension-bridge type crane
CN214359810U (en) Walking trolley for hoisting device
CN211283500U (en) Clean gantry crane
CN102774767B (en) Lifting appliance upper rack, lifting mechanism and crane
JP6223888B2 (en) Bridge crane
JP6996695B2 (en) Trolley and cargo handling method by trolley
CN102838038B (en) Traveling crab and crane
CN102229408A (en) Bridge crane for mine
CN202022668U (en) Mine bridge crane
CN104876121A (en) High-stability electric trolley
KR101064000B1 (en) Trolley for Crane

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination