KR20170089290A - Apparatus for a clamping of a hoist jig - Google Patents

Apparatus for a clamping of a hoist jig Download PDF

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Publication number
KR20170089290A
KR20170089290A KR1020160009534A KR20160009534A KR20170089290A KR 20170089290 A KR20170089290 A KR 20170089290A KR 1020160009534 A KR1020160009534 A KR 1020160009534A KR 20160009534 A KR20160009534 A KR 20160009534A KR 20170089290 A KR20170089290 A KR 20170089290A
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KR
South Korea
Prior art keywords
insertion hole
lug
track shape
hoisting
track
Prior art date
Application number
KR1020160009534A
Other languages
Korean (ko)
Inventor
김윤태
박남석
김원연
김원동
이상민
최현욱
Original Assignee
두산중공업 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
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Application filed by 두산중공업 주식회사 filed Critical 두산중공업 주식회사
Priority to KR1020160009534A priority Critical patent/KR20170089290A/en
Publication of KR20170089290A publication Critical patent/KR20170089290A/en

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    • 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
    • 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
    • B66C1/62—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 comprising article-engaging members of a shape complementary to that of the articles to be handled
    • 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
    • B66C1/62—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 comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—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 comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The present invention relates to a fastening structure for a hoisting jig, comprising a first lug which is provided along a circumference of a hoisting jig and is provided with a first insert hole formed in a track shape, and a second lug provided corresponding to the first lug on the hoisting object A second lug provided with a plurality of track-shaped second insertion holes, and a fixed hub which is fitted in the first insertion hole and the second insertion hole and connects the first lug and the second lug, According to the present invention, an effect of facilitating fastening between the jig and the object to be hoisted and improving the bonding force can be expected.

Description

[0001] DESCRIPTION [0002] APPARATUS FOR A CLAMPING OF A HOIST JIG [0003]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastening structure of a hoisting jig, and more particularly, to a hoisting structure of a hoisting jig that facilitates fastening between a jig and a hoisting object and at the same time improves the joining force.

Hoists, cranes, etc., perform the function of moving large equipment to a desired position, which is hard to reach by manpower.

Figures 1A and 1B show a hoisting device for lifting and transferring an induction coil device 3. First, a steel support bar is connected to the hoist or crane 1 and a square jig (2) is connected to each corner of the steel support bar. A plurality of lugs are arranged at four corners of each jig 2 and the induction coil device 3 is connected to the jig 2 by bolt connection between a plurality of brackets formed with four corners of the induction coil device 3. [ Is fixed and separated from the industrial equipment by the operation of the hoist or crane (1) and moved to a desired place by the operator.

1C shows a state where a bolt 6 and a nut 7 are fastened between a bracket 5 formed on a conventional induction coil device 3 and a lug 4 formed on a jig 2. FIG. At this time, a washer 8 may be used to improve the coupling force between the bolt 6 and the nut 7.

 However, in such a conventional fastening structure, the worker always tightens or loosens the bolts 6 and the nuts 7 to connect or disconnect the induction coil device 3 and the jig 2. Thus, A plurality of brackets 4 are arranged along the periphery of the jig 2 and a plurality of brackets 5 are arranged along the periphery of the induction coil device 3 on the upper portion of the induction coil device 3, The workload of the worker was severe.

The threads of the bolts 6 and the nut 7 are worn out due to the carelessness or the long use of the bolts 6 and the fastening of the nuts 7 and the load of the induction nose device 3, there is a problem.

Korean Patent Publication No. 10-2012-0016845

SUMMARY OF THE INVENTION It is an object of the present invention to provide a structure capable of facilitating fastening between a jig and a hoisting object while simultaneously enhancing a joining force.

According to an aspect of the present invention, there is provided a fastening structure for a hoisting jig, comprising: a first lug which is provided along a circumference of a hoisting jig and is provided with a track- A second lug provided at a position corresponding to the first lug and provided with a track-shaped second insertion hole, and a second lug fitted to the first insertion hole and the second insertion hole, And a fixed hub connecting the second lug.

Further, in the embodiment of the present invention, the track shape of the first insertion hole and the track shape of the second insertion hole may have the same size.

Further, in the embodiment of the present invention, the track shape of the first insertion hole and the track shape of the second insertion hole may be twisted at an angle.

Further, in the embodiment of the present invention, the angle between the track shape of the first insertion hole and the track shape of the second insertion hole may be 90 degrees.

Further, in the embodiment of the present invention, the fixed hub is formed in a circular section having a diameter smaller than or equal to the minor axis diameter of the track shapes of the first insertion hole and the second insertion hole, and the first insertion hole and the second insertion hole A head portion formed at the upper end of the body portion and having a circular cross section larger than the minor axis diameter of the track shape of the first insertion hole and the second insertion hole, And a tail portion having a track-shaped cross section that is smaller than or equal to the track shape of the insertion hole and the second insertion hole.

Further, in the embodiment of the present invention, the long axis of the tail portion may be configured to be at least longer than the short axis of the second insertion hole, and be smaller than or equal to the long axis of the second insertion hole.

In addition, in the embodiment of the present invention, the lower end of the tail portion may be tapered from the outer side to the center side so that the tail portion is smoothly inserted into the first insertion hole and the second insertion hole.

In addition, in the embodiment of the present invention, the lower end of the tail portion may be curved and tapered from the outside toward the center.

In addition, in the embodiment of the present invention, it may further include loosening preventing means interlocked and arranged between the fixed hub and the first lug to prevent the fixed hub from rotating.

In addition, in the embodiment of the present invention, the unlocking means may include a protrusion provided in the form of a pair of bars spaced at a predetermined distance from the upper end of the first lug, and a through hole formed on the head of the fixed hub And a fixed lever that is inserted and rotated to rotate at a predetermined angle.

In addition, in the embodiment of the present invention, the rotary shaft of the fixed lever and the long axis of the track shape of the tail portion may be configured to be parallel to each other.

According to the present invention, instead of fastening a bolt-nut to a worker like a conventional bolt-nut fastening method, a fixing hub having circular and elliptical ends is inserted into a groove of a lug formed in a jig and a hoisting object, The object to be hoisted can be easily fixed in a simple manner, and the workload of the worker can be reduced and the work efficiency can be improved.

In addition, the fixing hub is fitted on the protrusion formed on the lug on the jig, so that the fixing hub can be prevented from rotating due to vibration during the hoisting operation, so that the work stability can be achieved.

Further, the elliptical end of the fixed hub tapers and smoothly fits when inserted into the lug formed on the jig and the hoisting object, so that the fastening of the hoisting object is smoothly performed.

1A and 1B are diagrams showing a working state in which an induction coil is hoisted.
1C is a view showing a fastening structure of a conventional hoisting jig.
2 illustrates an embodiment of a fixed hub of the present invention.
3 is a view showing an embodiment of a lug formed on a jig and a hoisting object according to the present invention.
4 is a view showing a fastening structure of a hoisting jig according to the present invention.
Figs. 5A to 5D are working state diagrams showing the fastening process of the invention shown in Fig. 4; Fig.
Figures 6a-6c illustrate real prototypes of the invention shown in Figure 4;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a fastening structure for a hoisting jig according to the present invention will be described in detail with reference to the accompanying drawings.

Fig. 2 is a view showing an embodiment of a fixed hub according to the present invention, Fig. 3 is a view showing an embodiment of a lug formed on a jig and a hoisting object according to the present invention, and Fig. 4 is a view showing a fastening structure of a hoisting jig of the present invention.

2 to 4, the fastening structure of the hoisting jig according to the present invention may include a first lug 21, a second lug 31, a fixed hub 50, and a release preventing means 60 .

First, the first lugs 21 are arranged along the periphery of the hoisting jig 20, and the first lugs 21 are formed by forming the first insertion holes 22 in a track shape. In the embodiment of the present invention, the hoisting jig 20 may be formed in the form of a rectangular steel frame, and the first lug 21 may be disposed in the vicinity of each corner of the quadrangle, So that it can be realized with a steel material having high strength. FIG. 3 shows a portion of the four lugs 21 welded to the hoisting jig 20. Of course, the first lug 21 may be bolted to the hoisting jig 20.

The second lugs 31 may be arranged on the hoisting object 30 at a plurality of positions corresponding to the first lugs 21 and may have track-shaped second insertion holes 32 formed therein . In the embodiment of the present invention, the hoisting object 30 may be an induction coil device, but the present invention is not limited thereto, and objects transferred by various hoisting devices such as hoists and cranes, to which the present invention can be applied, It can be a target.

 In the embodiment of the present invention, the hoisting object 30, which may be embodied as an induction coil device, may be configured as a rectangular steel frame housing, and the second lug 31 may include a first lug 21 at the positions corresponding to the first and second positions. 3, it can be seen that the second lug 31 is fixed to the bracket 34 of the hoisting object 30 by bolts 35 being fastened thereto. Of course, the second lug 31 may be welded and disposed on the hoisting object 30. The second lug 31 may also be made of a steel material having high strength so as to withstand a large load.

Next, the fixing hub 50 is fitted in the first insertion hole 22 and the second insertion hole 32 and may be provided to connect the first lug 21 and the second lug 31. Referring to FIG. 2, the fixing hub 50 may include a body 51, a head 52, and a frame 55.

The body portion 51 may be formed in a circular section having a diameter? 1 which is smaller than or equal to the minor axis diameter? 3 of the track shape of the first insertion hole 22 and the second insertion hole 32 , The first insertion hole (22), and the second insertion hole (32). This is to allow the body part 51 to be smoothly inserted into the first insertion hole 22 and the second insertion hole 32 and be rotatable at a certain angle within the body.

The length S1 of the body part 51 is a distance between the upper end of the first lug 21 and the lower end of the second lug 31 when the hoisting jig 20 and the hoisting object 30 come into contact with each other, (S2). This is to keep the contact between the hoisting jig 20 and the hoisting object 30 during the hoisting operation so that the hoisting jig 20 keeps firm contact with the hoisting jig 20.

The head portion 52 is formed at the upper end of the body portion 51 and has a diameter PHI 2 larger than the short axis diameter PHI 3 of the track shape of the first insertion hole 22 and the second insertion hole 32 ). ≪ / RTI > This is because when the body portion 51 is inserted into the first insertion hole 22 and the second insertion hole 32, the fixing hub 50 does not fall downward and the upper end of the first lug 21 In order to ensure stable seating.

The frame portion 55 is formed at the lower end of the body portion 51 and has a track shape having a size smaller than or equal to the track shape of the first insertion hole 22 and the second insertion hole 32, . ≪ / RTI > Here, the track shape of the first insertion hole 22 and the track shape of the second insertion hole 32 may have the same size. The track shape of the first insertion hole 22 and the track shape of the second insertion hole 32 may be twisted at an angle.

The long axis of the stem 55 may be at least longer than the short axis of the second insertion hole 32 and may have a length less than or equal to the long axis of the second insertion hole 32.

Here, a short axis or a long axis means a perpendicular bisector of a line segment connecting two foci from an ellipse, and a line segment cut by an ellipse is called a long axis. In short, the short part of the ellipse has a short axis and the long part has a long axis.

The long axis of the teep part 55 is not longer than the short axis of the second insertion hole 32 so that the long axis of the teep part 55 is inserted into the second insertion hole 32 and rotated 90 degrees, It should be big. In order to insert the second insertion hole 32 into the frame 55, the long axis of the frame 55 should be smaller than or equal to the long axis of the second insertion hole 32. Of course, it is preferable that the long axis of the tee part 55 has the same size as the long axis of the second insertion hole 32 in order to prevent the tee part 55 from being separated due to shaking, vibration, shock, etc. between the hoisting operations .

After passing through the first insertion hole (22), the stem (55) The upper part of the tee part 55 is brought into close contact with the lower end of the second lug 31 by rotating in one direction at a predetermined angle and being inserted into the second insertion hole 32, do. In order to prevent the fixing hub 50 from being separated during the hoisting operation, when the frame 55 has the same track shape as that of the first insertion hole 22 and the second insertion hole 32, It can be fixed firmly.

In the embodiment of the present invention, the predetermined angle may be 90 degrees. In this case, the twisted angle between the first insertion hole 22 and the second insertion hole 32 is 90 degrees. That is, the worker inserts the tail portion 55 of the fixed hub 50 into the first insertion hole 22, and then rotates 90 degrees in one direction to cause the tail portion 55 to move in the second insertion hole 32 The upper end of the frame 55 is brought into close contact with the lower end of the second lug 31 by rotating the first lug 21 and the second lug 31 in the opposite direction, 2 lugs 31 are firmly fixed to each other.

At this time, the lower end of the tail portion 55 may be tapered from the outer side toward the center side so that the tail portion 55 is smoothly inserted into the first insertion hole 22 and the second insertion hole 32. Referring to FIG. 2, the lower end of the stem 55 has a curved shape and a tapered portion 56 tapering from the outer side toward the center side can be identified. When the lower end of the frame 55 has a curved shape, the lower end of the frame 55 slides on the first insertion hole 22 and the second insertion hole 32 and can be smoothly inserted. Of course, the effect of lowering the wear rate can be anticipated as the curve is made.

Next, the release preventing means 60 may be interlocked and disposed between the fixing hub 50 and the first lug 21 to prevent the fixing hub 50 from rotating. The release preventing means 60 may include the protrusion 61 and the fixing lever 63. [

The protrusions 61 may be formed as a pair of bars spaced apart from the upper end of the first lug 21 by a predetermined distance. 3, in the embodiment of the present invention, it can be confirmed that the protrusions 61 are disposed at the upper end of the first lug 21 in the form of a pair of bars. However, the present invention is not limited thereto, and the number of bars forming the protrusion 61 may be changed according to the working environment. At this time, the pair of bars constituting the protruding portion 61 are arranged side by side, but may be arranged parallel to the long axis of the first insertion hole 22. [

Next, the fixing lever 63 is inserted into the through hole 53 formed on the head portion 52 of the fixing hub 50, and can be arranged to rotate at a predetermined angle. 2, a through hole 53 is formed on the head portion 52. The fixing lever 63 is formed in a square shape and a part of the fixing lever 63 is inserted into the through hole 53 Can be confirmed.

The through hole 53 and the fixing lever 63 are circular in cross section so that the fixing lever 63 can rotate within a certain range with the through hole 53 as a rotation axis. At this time, the major axis of the track shape of the tail portion 55 may be parallel to the rotation axis with respect to the through hole 53 of the fixing lever 63.

4, after the fixing lever 63 is finally inserted into the first insertion hole 22 and the second insertion hole 32, the operator inserts the fixing lever 63 into the through hole 53 The fixing hub 50 is rotated 90 degrees due to vibration or shock during the operation so that the fixing hub 50 is rotated by the rotation of the first and second lugs 50, It is possible to prevent a safety accident in which the hoisting object 30 is dropped from the hoistway 21 or 31.

Hereinafter, an operation process according to an embodiment of the present invention will be described.

5A to 5D are operation state diagrams illustrating a fastening process of the invention shown in FIG.

First, as shown in FIG. 5A, the operator places the tail portion 55 of the fixed hub 50 at the same position as the track shape of the first insertion hole 22 formed in the first lug 21, . At this time, since the lower end of the tail portion 55 is curved and tapered, it can be smoothly slipped and inserted into the first insertion hole 22 even if the position is slightly shifted.

5B, the worker rotates the fixed hub 50 at a predetermined angle in one direction. Here, the predetermined angle may be determined according to an angle at which the track shape of the second insertion hole 32 formed on the second lug 31 is twisted with the track shape of the first insertion hole 22. [ In the embodiment of the present invention, the predetermined angle may be 90 degrees.

That is, the operator inserts the body portion 51 in the first insertion hole 22 so that the length of the body portion 51 is about d1, and then rotates by 90 degrees in one direction, so that the track shape of the tee portion 55 becomes the second insertion hole (32).

Here, the length d1 may be less than or equal to the distance d2 between the first lug 21 and the second lug 31. The length d1 may be the height of the frame 55. This is to ensure that the frame 55 can be rotated by 90 degrees in the interval between the first lug 21 and the second lug 31.

5C, the operator further lowers the fixing hub 50 by the length d1, inserts the tee 55 into the second insertion hole 32, and then rotates the fixing hub 50 in the opposite direction by 90 degrees So that the track shape of the frame portion 55 and the track shape of the second insertion hole 32 are twisted by 90 degrees.

The head portion 52 of the fixed hub 50 is seated on the upper end of the first lug 21 and the tail portion 55 of the fixed hub 50 is seated on the lower end of the second lug 31, And the first lug 21 and the second lug 31 are firmly fixed to each other.

5D, the worker inserts the fixing lever 63 down into the protrusion 61, thereby preventing the fixing hub 50 from being unwound due to vibration, shock, or the like during the work process .

6A to 6C, there is shown a prototype in which the fastening structure of the hoisting jig of the present invention is actually manufactured.

The above description only shows a specific embodiment of the fastening structure of the hoisting jig.

Therefore, it should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. do.

10: fastening structure of hoisting jig
20: hoisting jig 21: first lug
22: first insertion hole 30: hoisting object
31: second lug 32: second insertion hole
50: fixed hub 51:
52: head portion 53: through hole
55: Tee part 56: Taper part
60: Loosening preventing means 61:
63: Fixing lever

Claims (11)

A first lug disposed in a plurality of positions along the circumference of the hoisting jig and provided with a track-shaped first insertion hole formed therein;
A second lug arranged on the hoisting object in a plurality of positions corresponding to the first lug and provided with a track-shaped second insertion hole; And
A fixed hub fitted in the first insertion hole and the second insertion hole and connecting the first lug and the second lug;
And a fastening structure for fastening the hoisting jig.
The method according to claim 1,
Wherein the track shape of the first insertion hole and the track shape of the second insertion hole have the same size.
3. The method of claim 2,
Wherein the track shape of the first insertion hole and the track shape of the second insertion hole are twisted at an angle.
The method of claim 3,
Wherein an angle between the track shape of the first insertion hole and the track shape of the second insertion hole is 90 degrees.
5. The method of claim 4,
The fixed hub includes:
A body portion having a circular cross section having a diameter smaller than or equal to a minor axis diameter of the track shape of the first insertion hole and the second insertion hole, the body portion being inserted into the first insertion hole and the second insertion hole;
A head portion formed at an upper end of the body portion and having a circular cross section larger than a minor axis diameter of a track shape of the first insertion hole and the second insertion hole; And
A frame portion formed at a lower end of the body portion and having a track-shaped cross section having a size smaller than or equal to a track shape of the first insertion hole and the second insertion hole;
And a fastening structure for fastening the hoisting jig.
6. The method of claim 5,
Wherein the long axis of the tail portion is at least longer than the short axis of the second insertion hole and smaller than or equal to the long axis of the second insertion hole.
The method according to claim 6,
Wherein a lower end of the tail portion is tapered from an outer side toward a center side so that the tail portion is smoothly inserted into the first insertion hole and the second insertion hole.
8. The method of claim 7,
Wherein a lower end of the tail portion is curved and tapered from an outer side toward a middle side.
9. The method according to any one of claims 1 to 8,
Further comprising loosening preventing means disposed between the fixing hub and the first lug so as to be interlocked with the fixing lug so as to prevent the fixing hub from rotating.
10. The method of claim 9,
The release preventing means
A protrusion provided in the form of a pair of bars spaced apart at a predetermined interval from an upper end of the first lug; And
A fixing lever inserted into the through hole formed on the head portion of the fixing hub and arranged to be rotated at a predetermined angle;
And a fastening structure for fastening the hoisting jig.
11. The method of claim 10,
Wherein the rotary shaft of the fixed lever and the long axis of the track shape of the tail portion are parallel to each other.



KR1020160009534A 2016-01-26 2016-01-26 Apparatus for a clamping of a hoist jig KR20170089290A (en)

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KR1020160009534A KR20170089290A (en) 2016-01-26 2016-01-26 Apparatus for a clamping of a hoist jig

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Application Number Priority Date Filing Date Title
KR1020160009534A KR20170089290A (en) 2016-01-26 2016-01-26 Apparatus for a clamping of a hoist jig

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KR20170089290A true KR20170089290A (en) 2017-08-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109502472A (en) * 2019-01-16 2019-03-22 广西玉柴机器股份有限公司 A kind of suspender lifting cylinder block

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109502472A (en) * 2019-01-16 2019-03-22 广西玉柴机器股份有限公司 A kind of suspender lifting cylinder block
CN109502472B (en) * 2019-01-16 2023-10-27 广西玉柴机器股份有限公司 Lifting appliance for lifting cylinder block

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