KR20170101440A - Load test apparatus - Google Patents

Load test apparatus Download PDF

Info

Publication number
KR20170101440A
KR20170101440A KR1020160023950A KR20160023950A KR20170101440A KR 20170101440 A KR20170101440 A KR 20170101440A KR 1020160023950 A KR1020160023950 A KR 1020160023950A KR 20160023950 A KR20160023950 A KR 20160023950A KR 20170101440 A KR20170101440 A KR 20170101440A
Authority
KR
South Korea
Prior art keywords
load
magnetic force
lifting
hull block
electromagnet
Prior art date
Application number
KR1020160023950A
Other languages
Korean (ko)
Other versions
KR101792173B1 (en
Inventor
유동현
Original Assignee
삼성중공업 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 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR1020160023950A priority Critical patent/KR101792173B1/en
Publication of KR20170101440A publication Critical patent/KR20170101440A/en
Application granted granted Critical
Publication of KR101792173B1 publication Critical patent/KR101792173B1/en

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • B63B9/00—
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The present invention relates to a load test apparatus, which is connected to a lifting sensor provided on a ceiling surface of a hull block or a load sensor connected to a lifting eye, and a magnetic force generating surface, in which a magnetic force is generated by an electromagnet provided in the hull block, And the load portion adjusts a magnetic force acting between the magnetic force generating surface and the bottom surface of the hull block through the electromagnet to move the lifting beam or the lifting eye A load test apparatus capable of controlling the degree of load is disclosed.

Description

LOAD TEST APPARATUS [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load test apparatus, which is capable of easily adjusting the load of a lifting beam or a lifting eye provided in a hull block, To a load test apparatus capable of preventing damages of a hull block caused by welding and damage of painting.

Lifting equipment such as a lifting beam or a lifting eye is generally provided in the hull block to lift various equipment and equipment.

Such lifting equipment shall be connected to equipment or equipment to be lifted through cables or chains, and shall not be damaged by the load of the equipment or equipment being lifted.

This is because, if the lifting equipment is damaged without lifting the load of the lifted equipment or equipment, it may cause damage to the equipment and equipment as well as serious safety accidents caused by the equipment and equipment to be dropped.

Lifting equipment, such as lifting beams or lifting eyes, is therefore made of materials and structures that can withstand the loads of the equipment and equipment being lifted, and is typically subjected to an allowable load test to test it before assembling the hull block .

1, a load sensor 40 connected to a lifting eye 20 or a lifting eye 30 provided on a hull block 10 via a cable C is connected to a crane The load test was performed on the lifting equipment provided in the hull block 10 through the numerical value measured through the load sensor 40. The load test was performed using the load sensor 1,

However, in the case of the conventional load test method using such a crane 1, since the large crane 1 is used, the preparation required for the test is troublesome and the operation rate of the crane 1 is lowered There is a problem in that a problem occurs.

In addition, when the load test is performed using the crane 1, it is difficult to apply an accurate load to the lifting equipment, and there is a problem that the safety in operation is lowered.

In addition, there is a risk that the lifting equipment is damaged due to a malfunction of the crane 1 in the test process, and the test can be performed only when the crane 1 can be used and the crane 1 can be operated. There was a problem that the test was not possible in the state where the hull block was assembled.

Since the load test method using the crane 1 is performed at the preceding stage before the hull block 10 is assembled due to the characteristic of using the crane 1, the hull block 10 is assembled, It is practically difficult to carry out the load test.

Meanwhile, in order to solve the above problems, there has been developed a method of performing a load test on lifting equipment even in a state where a hull block is assembled. However, there are other problems as follows.

2, the load sensor 40 connected to the lifting beam 20 or the lifting eye 30 provided on the ceiling 11 of the hull block 10 and the pad eye 3 provided on the bottom surface 12 are connected to the lifting eye 30, There is a method of adjusting the load acting on the lifting beam 20 or the lifting eye 30 by operating the lever block 2 after installing the lever block 2 on the cable or chain C connecting the lifting eye 20 .

In this case, since the pad eye 3 must be welded to the bottom surface 12 of the hull block 10, a separate process for the load test is required, and an additional step for removing the pad eye 3 after the load test And there was a problem that damage to the hull block could occur due to damage to the welded portion and peeling of the paint portion.

3, the weight 4 is attached to the cable or chain C connected to the lifting sensor 40 connected to the lifting beam 20 or lifting beam 20 provided on the ceiling 11 of the hull block 10, A method of applying a load to the lifting beam 20 or the lifting eye 30 is known.

In this case, there is a problem of a safety accident, a space securing problem, a damage of a member due to the handling of the heavy object 4, and a safety problem due to the falling of the heavy object 4 which may occur during the process of conveying the heavy object 4 for applying a load. There have been various problems such as breakage and deformation.

Therefore, there is a demand for a new load test apparatus and a load test method using the new load test apparatus which can solve the problems of the conventional load test methods as described above.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus and method for testing an allowable load of a lifting eye or a lifting eye provided on a hull block without any additional welding operation or installation work, And it is an object of the present invention to provide a load test apparatus capable of preventing damage to a hull block caused by welding and damage to a coating.

According to an aspect of the present invention, there is provided a load test apparatus comprising: a load sensing unit connected to a lifting sensor or a load sensor connected to a lifting eye or a lifting eye provided on a ceiling of a hull block, And a load portion which is installed in a floating state to face the bottom surface of the hull block, and the load portion adjusts a magnetic force acting between the magnetic force generating surface and the bottom surface of the hull block through the electromagnet , The degree of the load acting on the lifting beam or the lifting eye can be controlled.

A power supply unit for supplying a current to the electromagnet; And a controller for transmitting a control signal to the power unit to adjust intensity of a magnetic force generated on the magnetic force generating surface.

Here, the controller may be connected to the power unit in a wire or wireless manner, and may control the current supplied to the electromagnet through the power unit to control the intensity of the magnetic force generated on the magnetic force generating surface.

In addition, the load unit may further include a plurality of moving wheels provided on at least one side of both sides with respect to the magnetic force generating surface.

Further, the load portion is coupled to the upper surface located on the opposite side of the magnetic force generating surface so as to be rotatable about the shaft, is folded into the load portion through the rotation of the shaft, or protrudes to the outside of the load portion through the rotation of the shaft, And a connection lug provided to be connected to the sensor through a cable.

The connection lugs are provided on the upper surface of the load portion and the plurality of connection lugs are disposed on the upper surface corner portion of the load portion so as to have the same interval with respect to the center of gravity of the load portion .

The load test apparatus according to the present invention having the above-described configuration has the following effects.

Since the degree of the working load can be easily controlled through the load portion using the electromagnet in testing the allowable load of the lifting eye or the lifting eye provided in the hull block, not only a separate welding operation and installation work are involved, It is possible to prevent damages of the hull block and damage to the painting due to the hull block.

On the other hand, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a view showing a load test process of a conventional lifting equipment using a crane.
FIGS. 2 to 3 are views showing a load test process of a lifting facility using a lever block and a heavy object after assembling a hull block.
4 is a view illustrating a load test process of the lifting equipment using the load test apparatus according to the present invention.
5 is a view illustrating a load unit according to an embodiment of the present invention.
6 to 8 are views showing a mobile wheel that can be included in a load part according to an embodiment of the present invention.
9 to 10 are views showing connection lugs that may be included in the load portion according to an embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention in which the object of the present invention can be specifically realized will be described with reference to the accompanying drawings. In describing the present embodiment, the same names and the same symbols are used for the same components, and further description thereof will be omitted.

Further, in describing the present embodiment, the configuration shown in the drawings is only an example for facilitating understanding of the detailed description, and the configuration thereof may be varied without limitation, thereby indicating that the scope of the right is not limited.

4 to 5, the load test apparatus according to the present embodiment includes a load sensor 20 connected to the lifting eye 30 or the lifting beam 20 provided on the ceiling surface 11 of the hull block 10 40 and a load part 100 installed in connection with the load part.

Here, the lifting beam 20 and the lifting eye 30 are lifting equipment provided in the hull block 10, which is one of the lifting equipments for lifting various equipment and equipments installed in the hull and is most commonly used .

Meanwhile, the load sensor 40 is a device for measuring the load to be lifted by the lifting equipment such as the lifting beam 20 and the lifting eye 30, and is connected to the lifting eye 30 through a connecting member such as a cable C or a chain And various sensors capable of measuring a strain due to a tensile load and a load, including a load cell for tensile force, connected to a lifting facility, and may be various without limitation.

The load sensor 40 is configured to detect a load on the basis of the attraction force acting between the load section 100 and the bottom surface 12 of the hull block 10 by the magnetic force generated from the magnetic force generating surface 120 of the load section 100 The load applied to the lifting equipment can be measured.

The load sensor 40 is connected to the lug L provided in the loading unit 100 again through a connecting member such as a cable C or a chain so that the connecting operation with the loading unit 100 for load testing Separation can also be done easily after testing.

The magnetic load generating surface 120 provided to generate a magnetic force by the electromagnet 110 provided in the loading section 100 is spaced apart from the bottom surface 12 of the hull block 10, Lt; / RTI >

The load portion 100 is configured to adjust the strength of the magnetic force of the electromagnet 110 provided therein to control the attraction force acting between the magnetic force generating surface 120 and the bottom surface 12 of the hull block 10. [ The degree of the load applied to the lifting beam 20 or the lifting eye 30 can be controlled.

At this time, since the hull block 10 is generally made of a ferromagnetic substance made of steel having high magnetic susceptibility or an alloy including iron, the loading section 100 according to the present embodiment is a hull block 10).

In the case of the electromagnet 110 according to the present embodiment, a solenoid-type electromagnet having a simple structure and manufacturing can be constructed. In addition, a superconducting magnet capable of exhibiting a stronger magnetic field by compensating for the drawback of self- And the type and configuration thereof may be varied without limitation.

The loading unit 100 transmits a control signal to the power source unit 200 and the power source unit 200 that supply current to the electromagnet 110 and controls the magnitude of the magnetic force generated on the magnetic force generating surface 120 The control unit 300 may further include a control unit 300 for controlling the display unit 300.

The power source 200 generates a magnetic field by the electromagnet 110 of the loading part 100 according to the present embodiment and the generated magnetic field is discharged through the magnetic force generating surface 120 and is transmitted to the bottom surface 12 of the hull block 10, A current can be supplied to the electromagnet 110 to generate an attractive force therebetween.

At this time, the power source unit 200 can supply electric current to the electromagnet 110 by using the electric power supplied from the power generation facility already provided in the hull, and it is possible to use a separate primary battery or secondary battery Or the like.

In addition, the electromagnet 110 according to the present embodiment can easily change the strength of the magnetic field by controlling the intensity of the current supplied to the electromagnet 110 by transmitting a control signal to the power source 200 through the controller 300 have.

Accordingly, in this embodiment, the load unit 100 can easily control the load applied to the lifting equipment such as the lifting beam 20 or the lifting eye 30 by using the control unit 300, Since the load can be applied, it is possible to prevent the damage of the lifting equipment which may occur during the load test process and the safety accident caused thereby.

Meanwhile, the controller 300 according to the present embodiment may be provided as a portable device that can be easily grasped and operated by a user, such as a control pad connected to the power source 200 in a wired or wireless manner to transmit a control signal have.

It may also include a systemized facility that is connected in a wireless manner via a wireless network to collectively control the current supplied to the electromagnets 120 of a plurality of load test apparatuses.

In this case, load testing can be performed for a plurality of lifting equipments at the same time, so that not only the inspection speed and the yield can be increased, but also the central control and control can be performed in the whole test process.

6 to 7, the loading unit 100 according to the present embodiment includes a moving wheel 130 for easily moving and installing the loading unit 100 in a load test process, .

The moving wheels 130 are provided on at least either side of both sides of the magnetic force generating surface 120 as described above. As shown in the figure, a part of the groove formed on the side surface of the loading portion 100 And may be provided in a form in which the remaining portions are exposed and accommodated.

8, before or after the load test for the lifting equipment, any one side surface of both sides of the loading part 100 provided with the moving wheels 130 is positioned on the side of the hull block 130, After the user rotates the loading section 100 in a state where the moving wheel 130 is in contact with the bottom surface 12 of the hull block 10 after rotating the loading section 100 toward the bottom surface 12 of the hull block 10, So that the loading part 100 can be easily carried.

In the meantime, the shape and arrangement of the mobile wheel 130 shown in the figure are only for the sake of understanding in explaining the present embodiment, and are not intended to limit the mobile wheel 130 according to the present embodiment, The movement wheels 130 according to the present invention can be variously configured in various shapes and arrangements.

As shown in FIG. 9, the loading unit 100 according to the present embodiment is configured such that a connecting member or the like, such as a cable C or a chain, connected to the load sensor 40, (140).

The connection lug 140 is constructed in such a manner as to replace the lug L shown in FIG. 5 described above. The connection lug 140 has a structure in which the magnetic force generating surface 120, which faces the bottom surface 12 of the hull block 10, The lower surface of the hull block 10 may be coupled to the upper surface of the hull block 10 facing the ceiling surface 11 so as to be axially rotatable through the shaft 142. [

The connecting lug 140 can be folded into the loading part 100 through the rotation of the shaft with respect to the upper surface of the loading part 100 during the transportation and installation work of the loading part 100, It is possible to eliminate the inconvenience of transportation and installation that can occur when the operator or the equipment or equipment in the ship is caught by the connection lug 140 projected in the installation work.

On the other hand, when the load test is performed, a connection point such as a cable (C), a chain, or the like connected to the load sensor 40 protruding out of the load section 100 through shaft rotation is provided .

In addition, as shown in FIG. 10, a plurality of connecting lugs 140 according to the present embodiment may be provided on the upper surface of the load section 100.

At this time, each of the plurality of connection lugs 140 may be disposed at the upper edge portion of the load portion so as to have the same distance from each other with respect to the center of gravity of the load portion 100.

Thus, when the load section 100 is connected to the load sensor 40 via a connecting member such as a cable C or a chain, one side is tilted and brought into contact with the bottom surface 12 of the hull block 10 Can be prevented.

As described above, since the load test apparatus according to the present embodiment is provided to easily carry the load section 100 through the moving wheel 130 and the connecting lug 140 included in the load section 100 Various problems such as a safety accident caused by heavy objects falling during transportation of a heavy object, a space securing problem, a damage of a member due to handling, damage and deformation of a hull, and the like can be prevented.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It is self-evident to those of ordinary skill.

In addition, embodiments of the present invention can be implemented independently of each other, and can be implemented in various combinations. Through the embodiments of the present invention in which the object of the present invention can be specifically realized, And a load test apparatus capable of solving the problems that the apparatuses have.

10: Hull block 100: Lower part
11: ceiling scene 110: electromagnet
12: bottom surface 120: magnetic force generating surface
20: lifting beam 130: moving wheel
30: lifting eye 140: connecting lug
40: Load sensor 200: Power source
300:

Claims (6)

A magnetic force generating surface connected to a lifting sensor provided on a ceiling of a hull block or a load sensor connected to a lifting eye and provided so as to generate a magnetic force by an electromagnet provided in the hull block is spaced apart from the bottom surface of the hull block, And a load portion to be installed,
The load section
Wherein a load acting on the lifting beam or the lifting eye is controlled by adjusting a magnetic force acting between the magnetic force generating surface and the bottom surface of the hull block through the electromagnet. The method according to claim 1,
A power supply unit for supplying a current to the electromagnet; And
And a controller for transmitting a control signal to the power unit to adjust the intensity of the magnetic force generated on the magnetic force generating surface. 3. The method of claim 2,
Wherein,
And a load tester connected to the power unit in a wire or wireless manner and controlling a current supplied to the electromagnet through the power unit to adjust an intensity of a magnetic force generated on the magnetic force generating surface. The method according to claim 1,
The load section
Further comprising a plurality of moving wheels provided on at least one side of both sides with respect to the magnetic force generating surface. The method according to claim 1,
The load section
A shaft rotatably coupled to an upper surface located on the opposite side of the magnetic force generating surface,
Further comprising a connecting lug which is folded into the load portion through an axial rotation or protrudes to the outside of the load portion through an axis rotation so as to be connected to the load sensor through a cable. 6. The method of claim 5,
The connecting lug includes:
And a plurality of load-bearing units are provided on the upper surface of the load unit,
Wherein the plurality of connection lugs include:
And are respectively disposed on upper surface corner portions of the load portion so as to have the same distance from each other with respect to the center of gravity of the load portion.
KR1020160023950A 2016-02-29 2016-02-29 Load test apparatus KR101792173B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160023950A KR101792173B1 (en) 2016-02-29 2016-02-29 Load test apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160023950A KR101792173B1 (en) 2016-02-29 2016-02-29 Load test apparatus

Publications (2)

Publication Number Publication Date
KR20170101440A true KR20170101440A (en) 2017-09-06
KR101792173B1 KR101792173B1 (en) 2017-10-31

Family

ID=59925389

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160023950A KR101792173B1 (en) 2016-02-29 2016-02-29 Load test apparatus

Country Status (1)

Country Link
KR (1) KR101792173B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109747774A (en) * 2018-12-20 2019-05-14 大连中远海运重工有限公司 Deck well loads tool structure
CN113218758A (en) * 2021-05-07 2021-08-06 河南华正工程试验检测有限责任公司 Device and method for detecting releasing force of steel bar insulation clamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109747774A (en) * 2018-12-20 2019-05-14 大连中远海运重工有限公司 Deck well loads tool structure
CN113218758A (en) * 2021-05-07 2021-08-06 河南华正工程试验检测有限责任公司 Device and method for detecting releasing force of steel bar insulation clamp
CN113218758B (en) * 2021-05-07 2024-02-23 河南华正工程试验检测有限责任公司 Device and method for detecting clamping force of insulating clamping and releasing of reinforcing steel bars

Also Published As

Publication number Publication date
KR101792173B1 (en) 2017-10-31

Similar Documents

Publication Publication Date Title
US10222351B2 (en) Wire rope inspection apparatus
KR101792173B1 (en) Load test apparatus
US10407280B2 (en) Length adjustable wire rope rigging device and lifting system employing the same
EP3034450B1 (en) Device for hoisting and controlling loads
USRE36971E (en) Method of determining and analyzing a ship's weight
JP2017227638A (en) Apparatus for load weighing at lifting hook
FI126173B (en) Monitoring the condition of an elongated ferrous object having a longitudinal axis
EP2796400B1 (en) Magnetic gripper for grabbing and releasing magnetic materials.
CN105917222A (en) Apparatus and arrangement for monitoring condition of elongated ferrous object having longitudinal axis
CN113942927A (en) Hoisting device
JP2012246129A (en) Charging system for crane hook member
CN103614966A (en) Suspension bridge steel box beam hoisting sling
CN108343100B (en) High strain heavy hammer combination
KR200485095Y1 (en) Load test devices
CN104828665A (en) Onsite electrical detection method for double load capacity of friction type lifting machine system
CN103318748B (en) Article carrying platform suspender waterborne
KR200394650Y1 (en) Load Testing Device for Hoist
CN111591888A (en) Self-balancing hanging beam for spent fuel dry-type shielding storage container
KR100668778B1 (en) Load Testing Device for Hoist
CN216863491U (en) Hanging inspection device for on-load voltage regulation switch of transformer
KR101726052B1 (en) Apparatus for cable winding and transfering carrier having the same
CN218201881U (en) Self-balancing rocker arm holding rod for tower assembling
WO2023127278A1 (en) Rope inspection device and work machine including same
EA028170B1 (en) Electromagnetic ball mill
KR20180094530A (en) Crane

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant