KR101541427B1 - Apparatus for handling heavy object - Google Patents

Abstract

Disclosed is a heavy object handling apparatus capable of lifting and / or turning over a heavy object. The apparatus includes a jig body having a heavy support hole into which a heavy object is inserted, a lifting connector provided at at least two places of the jig body for lifting a heavy object, and at least one And a turn-over connector provided at one place.

Description

{APPARATUS FOR HANDLING HEAVY OBJECT}

The present invention relates to a heavy object handling apparatus capable of lifting or turning over a heavy object.

In general, heavy objects such as heavy machinery, parts or assemblies are lifted or transported or moved to any position using heavy material handling devices such as cranes, hoists or forklifts.

There are many difficulties when the heavy object is lifted upside down using such heavy object carriers or when it is rotated by an arbitrary angle.

Conventionally, the above-mentioned heavy object conveying apparatus is provided with a chain or band to turn over or lift a heavy object. However, in such a case, when a heavy object is turned over, a large impact occurs due to a heavy swinging motion, and since the size of the heavy object is large, a wide working space is required in the turnover operation.

For example, as a heavy material, there is a structure in which a marine crankshaft is provided in a large marine engine. The crankshaft forms a single crankshaft with a plurality of crank throws and journal shafts interconnecting each other.

In other words, a single crushing process is performed between the crank throw and the journal shaft to form the crankshaft, and a single crankshaft used for the large-sized ship is completed by assembling a plurality of unit crankshafts, do.

When the crankshaft rotates, the connecting rod is assembled between the crank throws connected to each other to convert the rotary motion into the reciprocating motion.

In order to manufacture such a crankshaft, it is necessary to perform lifting of a shaft constituting the crankshaft, or turnover of a crankshaft assembled with at least two unit crankshafts.

Korea Patent No.: 10-2011-0129031 (Publication date: December 1, 2011) Korean Patent Publication No. 10-2004-0110853 (Publication date: December 31, 2004)

It is an object of the present invention to provide a heavy-matter handling apparatus capable of easily lifting a heavy object.

Another object of the present invention is to provide a heavy object handling apparatus capable of easily turning over a heavy object.

It is still another object of the present invention to provide a heavy-matter handling apparatus in which a heavy object is combined with a lifting function and a turn-over function.

According to an aspect of the present invention, there is provided a jig body including a jig body having a weight support hole with one side opened to insert a heavy object therein, and a lifting attachment including at least two lifting connectors provided at the jig body for lifting the heavy object Device is provided.

According to another aspect of the present invention, there is provided a jig body including a jig main body having a weight supporting hole having one side opened to insert a heavy object into the inside thereof, and a turnover connector provided on the jig body so as to lift one end of the heavy object A handling device is provided.

According to another aspect of the present invention, there is provided a jig body comprising: a jig body having a weight supporting hole into which a heavy object is inserted; a lifting connector provided at at least two places of the jig body for lifting the heavy object; There is provided a heavy object handling apparatus including a turn-over connector provided at at least one position of the jig main body so as to receive a turnover string.

The lifting connector may be provided at three places of the jig main body, and the lifting connector may be disposed such that the distance from the center of the jig main body to the lifting connector is the same.

The lifting connector may be disposed on both sides of the opening of the heavy material support hole and on the side opposite to the opening.

The lifting connector may include a support piece provided around the jig body, and a lifting ring coupled to the support piece through a connection pin and hooked with a lifting string.

The turn-over connector may include a string support shaft protruding from at least one portion of the jig main body to which the turnover string is attached so as to lift up one end of the weight, and a support plate connected to the end of the string support shaft.

The string supporting shafts may be disposed at two opposite positions of the jig main body.

And the string support shaft may be arranged in a direction orthogonal to a central axis passing through the opening of the weight support hole.

A rotatable bush member may be further included on the outer circumference of the string support shaft.

And a locking member may be provided on the opening side of the heavy object support hole to prevent the heavy object from coming off by closing the opening.

The locking member may include a locking bar having one end rotatably supported on both sides of the opening of the heavy object supporting hole, and a locking plate provided at the other end of the locking bar and supported in contact with each other through a fastening member.

The heavy object may include a thrust shaft to be subjected to shrinkage to form a crankshaft or a crankshaft employed in ships and the like.

According to the heavy object handling apparatus according to the embodiment of the present invention, the flange portion of the heavy object is kept in contact with the periphery of the heavy object support hole of the jig body, lifted by the three-point support, for example, Can be transported.

According to an embodiment of the present invention, the flange portion of the heavy object is held in contact with the periphery of the heavy object support hole of the body of the jig, and the heavy object is smoothly rotated without being interfered with the turnover string supported in the upward direction, Can be easily and stably performed.

According to an embodiment of the present invention, a locking member is provided on an opening side of a support hole for a heavy object to be fitted in the outer periphery of a heavy object, so that the heavy object is prevented from being detached from the jig body during lifting or turning- can do.

According to an embodiment of the present invention, a single jig body is provided with a lifting connector capable of lifting a heavy object and a turn-over connector capable of turning over a heavy object, thereby reducing the number of jigs, can do. In addition, as the number of jig is reduced, the storage space of the jig can be reduced, thereby reducing the work space.

1 is a perspective view showing a configuration of a heavy object handling apparatus (lifting apparatus) according to an embodiment of the present invention.
2 is a perspective view showing a configuration of a heavy object handling apparatus (turnover apparatus) according to an embodiment of the present invention.
3 is an enlarged view of the III display portion of Fig.
FIG. 4 is a perspective view illustrating the configuration of a multi-mass handling apparatus according to an embodiment of the present invention.
5 is a perspective view illustrating a lifting operation of the multi-weight handling apparatus according to an embodiment of the present invention.
6A to 6C are diagrams illustrating a turn-over operation of the multi-mass handling apparatus according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know.

In the following, the term 'heavy object' includes all objects including flanges as all heavy and bulky objects that are lifted or turned over for transport or the like.

Hereinafter, a crankshaft and a thrust shaft constituting a crankshaft are exemplified.

1 is a perspective view showing a configuration of a heavy object handling apparatus (lifting apparatus) according to an embodiment of the present invention.

Referring to FIG. 1, the heavy lifting device 1A includes a jig body 10 having a weight support hole 11 into which a heavy object 3 is inserted. One side of the heavy object support hole 11 may be formed with an opening 11a to facilitate the insertion of the heavy object.

The jig body 10 has a substantially plate shape and is provided with lifting connectors 30 at at least two locations around the jig body 10.

The lifting connector 30 may include a lifting ring 35 fixed to the supporting piece 31 and the supporting piece 31 provided on the periphery of the jig body 10 via a connecting pin 33.

The support piece 31 may be formed in a substantially 'C' shape so as to be fitted around the jig body 10. [

The lifting connector 30 may be provided at three locations of the periphery of the jig body 10. [ At this time, the distance between each of the lifting connectors 30 and the center of the jig body 10 can be the same.

Here, one lifting connector 30a is provided on the other side of the opening 11a on the central axis C passing through the opening 11a, and the other two lifting connectors 30b and 30c are provided on both sides of the opening 11a And may be arranged in a triangular configuration.

With such a configuration, the heavy object 3 can be held in a horizontal state and can be stably lifted.

The lifting collar 35 may be provided with a lifting string 41 to which a crane (not shown) is connected, such as a metal chain.

The heavy object 3 may be a thrust shaft constituting a crankshaft employed in a large ship as an object having a flange portion protruding around the body.

The body of the thrust shaft 3 is inserted into the inside of the weight support hole 11 and the flange portion 3a of the thrust shaft 3 is held in contact with the periphery of the weight support hole 11. [

The weight lifting device 1A is provided on both sides of the opening 11a of the jig main body 10 and is provided with a locking member 50 for preventing the weight of the thrust shaft 3, which is inserted into the weight supporting hole 11, ≪ / RTI >

The locking member 50 is provided at the other end of the locking bar 51 and the locking bar 51 that are rotatably supported at one end on both sides of the opening 11a of the heavy object support hole 11, And a locking plate 55 that is contact-supported.

One end of the locking bar 51 inserted in the slot 13 is provided on both sides of the opening 11a side of the jig main body 10 with a slot 13 into which one end of the locking bar 51 is inserted, As shown in Fig.

The locking bar 51 rotates in the direction opposite to each other and the locking plate 55 is in a state in which the locking plate 55 is close to the locking hole 55a formed in the locking plate 55, As shown in Fig.

Alternatively, a separate magnet member (not shown) may be additionally provided on the locking plate 55 so as to be locked by a magnetic force.

FIG. 2 is a view showing a configuration of a heavy object turnover device according to an embodiment of the present invention, and FIG. 3 is an enlarged view of a III display portion of FIG.

2, the structure of the jig main body 10 and the locking member 50 are substantially the same as those shown in FIG. 1, and therefore, the same reference numerals are used for the same components, and a duplicate description thereof will be omitted.

2 and 3, the heavy-weight turnover device 1B includes a jig main body 10 having a weight support hole 11 in which a heavy object such as a crankshaft 8 is inserted and supported, And a turn-over connector 70 provided at at least one position of the main body 10.

The turnover connector 70 is connected to the end of the string support shaft 71 which is projected from the jig main body 10 and to which a turnover string 43 for lifting up one end of the crankshaft 8 is caught, And a support plate 73 for preventing the turnover string 43 from coming off.

A rotatable bush member 75 is additionally provided outside the string supporting shaft 71 so that the crankshaft 8 can be easily turned around the turnover string 21 when the crankshaft 8 is turned over, Over.

The turn-over connectors 70 thus configured can be arranged to face each other at two locations around the jig body 10. [ That is, the turn-over connector 70 can be disposed in a direction orthogonal to the center axis C of the jig main body 10 passing through the opening 11a of the heavy object support hole 11. With this configuration, the crankshaft 8 can be turned over more stably.

A heavy turnover device 1B according to an embodiment of the present invention may advantageously turn over a crankshaft 8 that is employed in an elongated object such as a ship.

The crankshaft 8 is formed by crushing the crankshaft 6b with the crankshaft 6a to form a unit crankshaft 6. A plurality of unit crankshafts 6 are connected to form one crankshaft 8, Respectively.

A thrust shaft (3) is coupled to one end of the crankshaft (8).

When the crankshaft 8 constructed as described above is turned over, the vicinity of the journal shaft 6a is inserted into the support hole 11 and the one surface of the crank throw 6b is engaged with the periphery of the support hole 11 As shown in Fig.

Thus, the turnover string 43 can be turned over by lifting one end of the crankshaft 8 by hanging a crane or a forklift (not shown) or the like.

FIG. 4 is a perspective view illustrating the structure of a multi-mass handling apparatus according to another embodiment of the present invention.

Referring to FIG. 4, the multi-heavy object handling apparatus 1C is configured to perform a function of lifting a heavy object and a function of turning over a heavy object.

The multi-mass handling apparatus 1C is configured to perform the weight lifting function and the weight turnover function by grafting the weight lifting apparatus 1A of FIG. 1 and the weight turnover apparatus 1B of FIG.

The jig body 10, the lifting connector 30, the locking member 50, and the turn-over connector 70 shown in Fig. 4 are substantially the same as those shown in Figs.

Hereinafter, the same reference numerals are assigned to the same components as those shown in FIG. 1 to FIG. 3, and redundant description is omitted.

FIG. 5 is a perspective view showing a state in which the thrust shaft 3 is lifted through the multi-mass handling apparatus 1C according to the embodiment of the present invention.

5, the body of the thrust shaft 3 is inserted through the opening 11a of the jig body 10 and the flange portion 3a of the thrust shaft 3 is inserted into the jig So as to be contactably supported on one surface of the main body 10.

Next, the locking bars 51 of the locking member 50 are rotated to face each other so as to contact the locking plate 55.

When the locking plate 55 is in contact with the locking plate 55, the locking plate 55 is inserted into a locking hole 55a formed in the locking plate 55 using a locking bolt or a locking pin to separate the two locking plates 55 from each other .

The lifting string 41 for lifting the thrust shaft 3 is connected to the lifting ring 35 provided at the edge of the jig body 10. [

The thrust shaft 3 supported by the jig main body 10 is lifted up by the center of the lifting string 41 by using a crane, a forklift or the like.

Each of the lifting strings 41 is supported at three places of the jig main body 10 and is supported on the vertical central axis V of the jig main body 10 at a predetermined distance from the jig main body 10. That is, the lifting string 41 is supported in a substantially pyramidal shape.

As a result, the thrust shaft 3 can be maintained in a more stable horizontal state, and the thrust shaft 3 can be transported in a balanced state.

The locking member 50 closes the opening 11a so that the thrust shaft 3 is disengaged from the jig main body 10 during transfer of the jig main body 10 in which the thrust shaft 3 is supported as described above .

6A to 6C are views showing a process of turning over a heavy object through a multi-object handling apparatus according to another embodiment of the present invention.

Referring to Fig. 6A, the crankshaft 8, which is a heavy dust, is inserted into the jig main body 10 of the multi-mass handling apparatus 1C.

More specifically, after inserting the journal shaft 6a of the unit crankshaft 6 disposed at one end side of the crankshaft 8 through the opening 11a of the jig main body 10, the crank throw 6b, So that one surface of the jig body 10 is brought into contact with the periphery of the support hole 11 of the heavy object.

Next, the locking member 50 is locked and the opening 11a of the jig main body 10 is closed.

The turnover string 43 is connected to the string support shaft 71 of the turnover connector 70 in a state where one end of the crankshaft 8 is coupled to the jig body 10. [

The turnover string 43 connected to the string supporting shaft 71 is hooked on a hook of a crane or the like (not shown), and the crankshaft 8 is vertically erected.

6B, the other end of the crankshaft 8 coupled to the jig main body 10, that is, the side of the thrust shaft 3 is laid down on the ground surface of the turnover field and is laid down gradually along the arrow A direction.

The crankshaft 8 is rotated through the bush member 75 rotatably engaged with the outer periphery of the string supporting shaft 71 so as not to interfere with the turnover string 43 supported in the upward direction during the downward operation, Over operation can be performed.

The turnover string 43 is separated from the string support shaft 71 by the support plate 73 connected to the end of the string support shaft 71 during the turnover operation by rotating the crankshaft 8 like this, It does not.

Referring to FIG. 6C, the crankshaft 8 supported by the turnover string 43 continues to be laid down substantially side by side with the ground surface. At this time, the crankshaft 8 is supported through the support block B installed on the ground to complete the turn-over operation.

As described above, according to the multi-heavy object handling apparatus 1C according to an embodiment of the present invention, the two objects of lifting and turning over a heavy object are simultaneously performed, thereby reducing the investment cost of the jig. In addition, since it is not necessary to secure a separate jig storage space, the work space can be reduced.

Although the present invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the present invention is not limited thereto but is limited by the following claims. Accordingly, those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the spirit of the following claims.

1A, 1B, 1C: heavy object handling device 10: jig body
11: Heavy material support hole 11a:
3: thrust shaft 8: crankshaft
30: lifting connector 31:
33: connecting pin 35: lifting ring
41: lifting string 43: turnover string
50: locking member 51: locking bar
55: locking plate 70: turnover connector
71: string support shaft 73: support plate
75: Bush member

Claims (26)

A jig main body having a weight supporting hole with one side opened to allow the heavy material to be inserted therein;
A lifting connector provided at at least two points of the jig body for lifting the heavy object; And
And a locking member closing an opening of the heavy object support hole to prevent the heavy object from coming off,
Wherein the locking member comprises:
A locking bar having one end rotatably supported on both sides of the opening of the heavy object support hole;
A locking plate provided at the other end of the locking bar; And
And a fastening member passing through the locking plate to fix the locking plate,
Wherein the contact surface of the locking plate contacting the locking bar is inclined at a predetermined angle with the central axis passing through the opening at the time of non-locking, is orthogonal to the upper surface of the locking bar,
Wherein the contact surface of the locking plate is parallel to the central axis at the time of locking and orthogonal to the upper surface of the locking bar. The heavy object handling apparatus according to claim 1, wherein the heavy object includes a flange portion supported in contact with the periphery of the heavy object support hole of the jig body. The heavy object handling apparatus according to claim 2, wherein the lifting connector is provided at three places of the jig body. 4. The heavy object handling apparatus according to claim 3, wherein the lifting connector has a distance from the center of the jig body to the lifting connector. 5. The heavy object handling apparatus according to claim 4, wherein the lifting connector is disposed on both sides of the opening of the heavy object support hole and on the side opposite to the opening. The method of claim 1, The lifting connector
A supporting piece provided around the jig body; And
A lifting ring coupled to the supporting piece via a connecting pin and hooked to the lifting string,
Wherein the weight of the heavy-weight material is substantially equal to or greater 3. The heavy material handling apparatus according to claim 2, wherein the heavy object comprises a thrust shaft constituting a crankshaft. delete delete A jig main body having a weight supporting hole whose one side is opened so that a heavy object is inserted into the inside thereof;
A turn-over connector provided on the jig body to lift one end of the heavy object; And
And a locking member closing an opening of the heavy object support hole to prevent the heavy object from coming off,
Wherein the locking member comprises:
A locking bar having one end rotatably supported on both sides of the opening of the heavy object support hole;
A locking plate provided at the other end of the locking bar; And
And a fastening member passing through the locking plate to fix the locking plate,
The contact surface of the locking plate contacting the locking bar is inclined at a predetermined angle with the central axis passing through the opening at the time of non-locking, and is perpendicular to the upper surface of the locking bar,
Wherein the contact surface of the locking plate is parallel to the central axis at the time of locking and orthogonal to the upper surface of the locking bar. 11. The apparatus of claim 10, wherein the turn-
A string supporting shaft protruding from at least one position of the jig main body to which a turnover string is applied so as to lift up one end of the weight; And
A support plate connected to an end of the string support shaft
Containers containing heavy materials. 12. The heavy object handling apparatus according to claim 11, wherein the string supporting shafts are disposed at two opposed positions of the jig body. 12. The heavy object handling apparatus according to claim 11, wherein the string supporting shaft is arranged in a direction orthogonal to a central axis passing through the opening of the weight supporting hole. The heavy object handling apparatus according to claim 11, further comprising a rotatable bush member on an outer periphery of the string supporting shaft. delete delete 11. The apparatus of claim 10, wherein the heavy object comprises a thrust shaft to be subjected to shrinkage to form a crankshaft. A jig body having a heavy support hole into which a heavy object is inserted;
A lifting connector provided at at least two points of the jig body for lifting the heavy object;
A turnover connector provided at at least one portion of the jig body so as to receive a turnover string for lifting one end of the heavy object; And
And a locking member closing an opening of the heavy object support hole to prevent the heavy object from coming off,
Wherein the locking member comprises:
A locking bar having one end rotatably supported on both sides of the opening of the heavy object support hole;
A locking plate provided at the other end of the locking bar; And
And a fastening member passing through the locking plate to fix the locking plate,
Wherein the contact surface of the locking plate contacting the locking bar is inclined at a predetermined angle with the central axis passing through the opening at the time of non-locking, is orthogonal to the upper surface of the locking bar,
Wherein the contact surface of the locking plate is parallel to the central axis at the time of locking and orthogonal to the upper surface of the locking bar. 19. The heavy object handling apparatus according to claim 18, wherein the lifting connector is provided at three places around the jig body. 19. The heavy object handling apparatus according to claim 18, wherein the turn-over connectors are arranged to face each other at two places around the jig body. 21. The apparatus according to claim 20, wherein said lifting connector is disposed on both sides of said opening of said heavy object support hole and on the other side of said opening,
Wherein the turnover connector is disposed orthogonal to a center axis of the heavy article passing through the opening. 19. The apparatus of claim 18, wherein the lifting connector
A supporting piece provided around the jig body; And
A lifting ring coupled to the lifting string via a connecting pin,
Wherein the weight of the heavy-weight material is substantially equal to or greater 19. The apparatus of claim 18, wherein the turn-over connector comprises: a string support shaft protruded from the jig main body so as to receive a turnover string for lifting one end of the heavy article; And
A support plate provided at an end of the string support shaft,
Wherein the weight of the heavy-weight material is substantially equal to or greater delete delete 19. The heavy-matter handling apparatus according to claim 18, wherein the heavy object includes a crankshaft of the ship or a thrust shaft constituting the crankshaft.

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