KR20200004451A - Mechanical Twin Tongs For Gripping Of The Level Difference Product - Google Patents

Abstract

Disclosed are mechanical twin tongs for gripping a product with a level difference. According to an embodiment of the present invention, the mechanical twin tongs include: a lifting beam in which a drawing beam that can be connected to a drawing crane are installed one by one on both sides of an upper end by being individually separated at a fixed distance, and an adapter box is installed one by one on both sides of a lower end by a first hinge structure to rotate at a fixed angle; the adapter box having a second hinge structure at a lower end, the second hinge structure that can rotate at a fixed angle in a direction orthogonal to a rotation direction of the first hinge structure; tongs installed on both sides of a lower end of the lifting beam by the second hinge structure of the adapter box and gripping an object to be drawn by pressing both sides of the object to be drawn; and a collision prevention protrusion installed to face each other on each one side of the pair of tongs installed on both lower ends of the lifting beam, wherein the collision prevention protrusion has a structure protruding as much as a predetermined length in the direction of facing the pair of tongs. According to the present invention, the mechanical twin tongs include a structure of fundamentally preventing damage to a product due to a fall by stably gripping the product when drawing the product with a level difference in the width direction and the height direction, such as die steel.

Description

Mechanical Twin Tongs For Gripping Of The Level Difference Product}

The present invention relates to a mechanical twin thong, and more particularly, to a mechanical twin thong for gripping a step product including a sphere capable of stably gripping a step product.

Generally, tongs crane is installed on the ceiling of steelworks or steel products, and used to transport heavy slabs.

Hereinafter will be described with reference to the through-screen crane according to the prior art shown in FIG.

Conventionally, the general barrel crane 10 has an upper frame 11 provided with a traction device at an upper side thereof, and a pair of tongs installed at a lower side of the upper frame 11 to grip a slab 20. The main structure is the arm 12 and the lower frame 13 which interconnects the arms 12, and the connection of the lower frame 13 to the upper frame 11 is tongkey (not shown). Bar 12 controls the operation of the arm 12. When the upper frame 11 and the lower frame 13 are disconnected, the arms 12 installed on both sides of the lower frame 13 are self-weighted. The slab 20 can be transported by gripping the slab 20 by self.

However, in the case of the barrel crane according to the prior art, a stable towing operation can be performed when only a product having a flat surface is carried, but a stable towing operation can be performed when a product having a stepped structure is formed on the outer surface thereof. none.

Specifically, it is difficult to grip at the product center of gravity when towing a forged product having a width direction and a height direction step such as a mold steel by using the barrel screw according to the prior art, the product falls due to the small gripping force of the traction device It may damage the product.

Therefore, lifting traction was not possible for products in which the widthwise stepped or the heightwise stepped step was formed by using the barrel screw according to the prior art.

In addition, in the case of towing a long product using a conventional barrel crane according to the prior art, as shown in Figure 1, by tightening the two cylinder crane to the lifting beam there is no product in the width direction step height and height difference step Can tow the product.

At this time, in order to operate two barrel cranes at the same time, the two barrel cranes are connected by a fixed frame. One tongs key is installed at the center of the lifting beam to lock and unlock the tongs crane according to the product gripping. When gripping the product, an arm frame is installed that connects the fixed frame and the lifting beam so that the two tongs cranes can be operated simultaneously after lifting the tongs.

As described above, the barrel screen according to the prior art is not capable of lifting traction for products in which the widthwise step or the heightwise step is formed. In addition, for long products, multiple members must be constructed for lifting traction. As a result, there is a problem in that a long working time is required as a plurality of members are constructed.

Therefore, there is a need for a technique that can solve the problems according to the prior art mentioned above.

Korea Patent Registration 10-0965279 (registered June 14, 2010)

It is an object of the present invention to provide a mechanical twin tongue including a structure that stably grips a product when it pulls a forged product having a width direction and a height direction step such as a mold steel, thereby preventing product damage due to a fall. .

Mechanical twin tongs according to an aspect of the present invention for achieving this purpose, the towing beams that can be engaged with the towing crane on the upper both sides are mounted one by one with a predetermined distance apart, so as to be rotatable by a predetermined angle on both sides of the lower end. A lifting beam having one adapter box mounted thereon by a first hinge structure; An adapter box mounted at a lower end thereof with a second hinge structure rotatable by a predetermined angle in a direction orthogonal to the rotation direction of the first hinge structure; And a tongs mounted on both sides of the bottom of the lifting beam by the second hinge structure of the adapter box, and pressing both sides of the towing object to grip the towing object.

In one embodiment of the present invention, the traction beam may be mounted by a third hinge structure having the same orthogonal plane as the rotation axis of the first hinge structure.

In this case, the first hinge structure and the third hinge structure mounted to the lifting beam may form a sagittal shape when viewed from the front.

In one embodiment of the present invention, the adapter box, rotatably mounted to the first hinge structure, and includes an adapter frame of a plate-like structure extending downward by a predetermined length, wherein the second hinge structure is It may be mounted on the lower end of the adapter frame.

In this case, both ends of the lower end of the adapter frame, protruding downward by a predetermined length, may be mounted to the anti-rotation projections of the structure extending toward the top surface of the tongs.

In one embodiment of the present invention, the second hinge structure of the adapter box may be equipped with a tong ski for guiding the gripping operation of the tongs.

In this case, a detachable binding structure of the second hinge structure of the adapter box and a detachable structure may be formed at an upper end of the tongski.

In addition, a sliding rail structure is formed at the lower end of the second hinge structure, and the tabular binding structure is formed in a structure corresponding to the cross-sectional shape of the sliding rail structure so that the sliding rail structure can be fixed after being slid to the sliding rail structure. Can be.

At this time, the tongsuki may be fixed by the fixing member after the binding to the sliding rail structure.

In one embodiment of the present invention, the tongs, the upper end is rotatably mounted to the second hinge structure, the lower end is a pair of gripping link is bound by the gripping jaw and the hinge structure; And a gripping jaw that is bound by the gripping link and the hinge structure, and one side of the gripping link is coupled to the fourth hinge structure in pairs.

In this case, a fourth hinge structure for binding the pair of gripping jaws to each other is equipped with a drive hinge portion having a plate-shaped structure, and an upper end portion of a tongski is mounted at the second hinge structure of the adapter box, and at the drive hinge portion. The lower end of the tongsuki may be mounted.

In addition, an auxiliary support having a flat structure corresponding to the ground may be mounted at a lower end of the driving hinge part in a detachable structure.

In one embodiment of the present invention, each side of the pair of tongs mounted on both lower ends of the lifting beam, the anti-collision projection of the structure protruding by a predetermined length in a direction opposite to the pair of tongs is mounted Can be.

In one embodiment of the present invention, the anti-collision protrusion is mounted on one end and the contact surface of the shape corresponding to one end of the other anti-collision protrusion; And an impact absorbing unit mounted inside the protrusion preventing protrusion and having an elastic member having an elastic restoring force of a predetermined size so as to absorb external force provided from the contact surface.

In addition, the anti-collision protrusion 180 is mounted inside the protrusion preventing protrusion 180, the length changing unit 183 of the structure for changing the extension length of the anti-collision protrusion 180; Can be.

In addition, the anti-collision protrusion 180 is attached to one end of the contact surface 181, the binding fixing portion 184 of the structure that is engaged with the contact surface 181 of another bump preventing protrusion 180; It may be a configuration that includes.

According to an embodiment of the present invention, by providing a lifting beam, an adapter box, and a tong of a specific structure, the product is stably gripped during the towing of a forged product having a widthwise and a heightwise step such as a mold steel, thereby causing product damage by falling. It is possible to provide a mechanical twin tong including a structure that can be blocked by a.

In addition, according to an embodiment of the present invention, by having a first hinge structure, a second hinge structure and a third hinge structure of the structure rotatable in a specific direction, it is possible to implement the independent rotation operation of the tongs mounted on both sides of the lifting beam As a result, it is possible to stably grip a forged product having a step difference, and as a result, provide a mechanical twin-thong including a structure that can stably grip the product when the forged product is towed, thereby preventing product damage due to a fall. can do.

In addition, according to another embodiment of the present invention, by having an adapter frame, a rotation preventing projection, a detachable binding structure of a specific structure, it is possible to prevent excessive bending rotation of the lifting beam by the adapter box when the mechanical twin tongue storage, Tongsuki of various specifications can be easily changed according to the working environment and the intention of the work, which can greatly improve the work efficiency and facilitate the maintenance of the mechanical tweens.

In addition, according to another embodiment of the present invention, by mounting the fourth hinge structure, the driving hinge portion and the tongsuki in a specific position, it is possible to implement an independent gripping operation of the tongs mounted on both sides of the lifting beam, It is possible to stably grip the forged product in which the step is formed, and as a result, it is possible to provide a mechanical twin tongue including a structure that can stably grip the product when the forged product is towed, thereby preventing the product from being damaged by the fall.

Further, according to still another embodiment of the present invention, a pair of tongs are connected to each other by mounting an anti-collision protrusion having a structure protruding by a predetermined length in a direction opposite to the pair of tongs on each side of the pair of tongs. Collision can be prevented beforehand, enabling stable towing operation.

In addition, according to another embodiment of the present invention, by attaching the auxiliary support of a specific structure to the lower end of the drive hinge in a removable structure, the mechanical twin tongs can be stably established and mounted when storing the mechanical twin tongs, The fall of the mechanical twin tongs can be prevented, making maintenance of the mechanical twin tongs easy.

In addition, according to another embodiment of the present invention, by providing an anti-collision projection including a contact surface, a shock absorbing portion, a length change portion, a binding fixing portion of a specific structure, a pair of tongs in driving the mechanical twin tongs The collision with each other can be prevented in advance, and the impact of the collision can be effectively absorbed. In addition, the length of the anti-collision protrusion can be appropriately changed according to the working environment, thereby preventing the pair of tongs from colliding with each other. In addition, by attaching a binding structure of a specific structure to one end of the contact surface, it is possible to stably establish and mount a mechanical twin tong when storing the mechanical twin tongs, and to prevent the fall of the mechanical twin tongs during storage. Maintenance of tongs is easy.

1 is a perspective view showing a through crane according to the prior art.
Figure 2 is a front view showing a mechanical twin pain in accordance with an embodiment of the present invention.
3 is a side view showing a mechanical twin pain in accordance with an embodiment of the present invention.
4 is a partially enlarged view showing a state where a tongsuki is mounted by the second hinge structure and the fourth hinge structure according to an embodiment of the present invention.
5 is a partially enlarged view showing a portion of the mechanical tween hose according to another embodiment of the present invention.
6 is a partially enlarged view showing a portion of the mechanical tween hose according to another embodiment of the present invention.
7 is a front view illustrating a state in which a round bar forged product is gripped by using a mechanical twin tongs according to an embodiment of the present invention.
FIG. 8 is a front view illustrating a state in which a forged product having a stepped structure is gripped using a mechanical twin tongs according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to ordinary or dictionary meanings, but should be construed as meanings and concepts consistent with the technical spirit of the present invention.

Throughout this specification, when a member is located "on" another member, this includes not only when one member is in contact with another member but also when another member exists between the two members. Throughout this specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless otherwise stated.

2 is a front view showing a mechanical twin thong according to an embodiment of the present invention, Figure 3 is a side view showing a mechanical twin thong according to an embodiment of the present invention. In addition, FIG. 4 is a partially enlarged view showing a state where the tongsuki according to the embodiment of the present invention is mounted by the second hinge structure and the fourth hinge structure.

Referring to these drawings, the mechanical twin tongue 100 according to the present embodiment includes a lifting beam 110, an adapter box 120, and a tongs 130 having a specific structure, thereby providing width and height directions such as mold steel. It is possible to provide a mechanical twin tongs including a structure that can stably grip the product when the stepped forged product is pulled to prevent damage to the product by the fall.

Hereinafter, with reference to the drawings will be described in detail for each configuration constituting the mechanical twin tongue 100 according to this embodiment.

On both sides of the upper end of the lifting beam 110, the traction beam 101, which can be engaged with the traction crane, may be mounted one by one spaced apart by a predetermined distance. In addition, the adapter box 120 may be mounted one by one by the first hinge structure 141 so as to be rotatable by a predetermined angle on both lower ends of the lifting beam 110.

In this case, the traction beam 101 according to the present embodiment may be mounted by the third hinge structure 143 having the same orthogonal plane as the rotation axis of the first hinge structure 141.

In this case, as can be seen in FIG. 3, the first hinge structure 141 and the third hinge structure 143 mounted to the lifting beam 110 may form a sagittal shape when viewed from the front. .

The present invention including such a configuration includes a first hinge structure 141, a second hinge structure 142, and a third hinge structure 143, which are rotatable in a specific direction, so that both sides of the lifting beam 110 are provided. Independent rotation operation of the mounted tongs 130 can be implemented, thereby stably gripping a forged product in which a step is formed. As a result, the product can be stably gripped during towing of the forged product to prevent product damage by falling. A mechanical twin tong can be provided that includes a structure that can be blocked at its source.

A second hinge structure 142 rotatable by a predetermined angle may be mounted at a lower end of the adapter box 120 in a direction orthogonal to the rotation direction of the first hinge structure 141.

Specifically, the adapter box 120 according to the present embodiment may have a configuration including the adapter frame 121 having a specific structure, as shown in FIG. 4. The adapter frame 121 may be rotatably mounted to the first hinge structure 141 and extend downward by a predetermined length. At this time, the second hinge structure 142 is preferably mounted to the lower end of the adapter frame 121.

In some cases, as shown in Figure 2, the lower end of the adapter frame 121, the anti-rotation protrusion 122 of the structure which projects downwards by a predetermined length, and extends toward the top surface of the tongs 130 Can be mounted.

In some cases, as shown in FIG. 4, a detachable binding structure 151 having a detachable structure and a second hinge structure 142 of the adapter box 120 is formed at an upper end of the tongs key 150. Can be. In this case, a sliding rail structure 123 is formed at the lower end of the second hinge structure 142, and the tabular binding structure 151 is slid to the sliding rail structure 123 to be fixed after being slid. The rail structure 123 is preferably formed in a structure corresponding to the cross-sectional shape. In this case, the tongsuki 150 may be fixed to the sliding rail structure 123 by a fixing member.

In addition, according to another embodiment of the present invention, by providing the adapter frame 121, the anti-rotation protrusion 122, and the detachable binding structure 151 of a specific structure, by the adapter box when the mechanical twin barrel storage of the lifting beam Excessive bending can be prevented, and various specifications of Tongski can be easily changed according to the working environment and work intention, thereby significantly improving the work efficiency and easy maintenance of mechanical tweens.

Meanwhile, the tongs 130 for pressing both sides of the towing object to grip the towing object may be mounted by the second hinge structure 142 of the adapter box 120 on both sides of the bottom of the lifting beam 110.

In this case, a tongs key 150 for guiding the gripping operation of the tongs 130 may be mounted on the second hinge structure 142 of the adapter box 120.

The tongs 130 according to the present embodiment may have a configuration including a gripping link 131 and a gripping jaw 132 having a specific structure, as shown in FIGS. 2 and 3.

Specifically, the upper end of the pair of gripping links 131 may be rotatably mounted to the second hinge structure 142, and the lower end may be coupled to the gripping jaws 132 by the hinge structure.

In addition, the pair of gripping jaws 132 may be bound by the gripping link 131 and the hinge structure, and one side may be coupled in a pair by the fourth hinge structure 144.

In this case, as shown in FIG. 3, the driving hinge 160 of the plate-like structure may be mounted on the fourth hinge structure 144 that binds the pair of gripping jaws 132 to each other. In addition, an upper end of the tongsuki 150 may be mounted to the second hinge structure 142 of the adapter box 120, and a lower end of the tongsuki 150 may be mounted to the driving hinge 160.

According to the present invention including such a configuration, by mounting the fourth hinge structure 144, the driving hinge 160 and the tongsuki 150 in a specific position, the tongs 130 mounted on both sides of the lifting beam 110 It is possible to implement independent gripping operation of the product, which makes it possible to reliably grip the forged product with a step difference. As a result, the product can be reliably gripped when the forged product is pulled to prevent damage to the product by falling. A mechanical twin tongue can be provided that includes a structure.

Meanwhile, as illustrated in FIG. 3, the auxiliary support 170 having a flat structure corresponding to the ground may be mounted at a lower end of the driving hinge 160.

In this case, according to the present invention, by mounting the auxiliary support 170 of a specific structure to the lower end of the drive hinge 160 in a removable structure, the mechanical twin tongs can be stably established and mounted when storing the mechanical twin tongs. This prevents the fall of the mechanical twin thongs during storage, making it easy to maintain the mechanical twin thongs.

4 is a partially enlarged view showing a state where a tongsuki according to an embodiment of the present invention is mounted by the second hinge structure and the fourth hinge structure, and FIGS. 5 and 6 show another embodiment of the present invention. A partially enlarged view is shown showing a portion of a mechanical tween hook according to an example.

Referring to these drawings, on each side of the pair of tongs 130 mounted on both lower ends of the lifting beam 110 according to the present embodiment, the pair of tongs 130 is provided in a direction facing each other by a predetermined length. The anti-collision protrusion 180 of the protruding structure may be mounted.

In this case, according to the present invention, by mounting the anti-collision protrusion 180 of the structure protruding by a predetermined length in a direction opposite to the pair of tongs 130 on each side of the pair of tongs 130, The pair of tongs 130 can be prevented from colliding with each other, it is possible to implement a stable towing operation.

In some cases, as shown in FIG. 5, the anti-collision protrusion 180 may have a structure including a contact surface 181 and a shock absorbing unit 182 having a specific structure.

In detail, the contact surface 181 may be mounted on one end of the anti-collision protrusion 180 and may correspond to one end of the another anti-collision protrusion 180. In addition, the shock absorbing unit 182 may be a structure in which an elastic member having an elastic restoring force of a predetermined size is mounted so as to be mounted inside the collision preventing protrusion 180 and to absorb external force provided from the contact surface 181. have.

In addition, as shown in FIG. 6, the mechanical twist trough according to the present exemplary embodiment may further include a length changing part 183 and a binding fixing part 184 having a specific structure.

In detail, the length change unit 183 may be mounted inside the protrusion preventing protrusion 180 and change the extension length of the collision preventing protrusion 180. In addition, the binding fixing part 184 may be mounted to one end of the contact surface 181 and may be configured to bind with the contact surface 181 of another bump preventing protrusion 180.

According to this embodiment, by providing a collision preventing protrusion 180 including a contact surface 181, a shock absorbing portion 182, a length change portion 183, the binding fixing portion 184 of a specific structure, mechanical twin tongue In driving, a pair of tongs can be prevented from colliding with each other and can effectively absorb the impact of the collision. In addition, the length of the anti-collision protrusion 180 can be appropriately changed according to the working environment, thereby preventing the pair of barrels from colliding with each other. In addition, by attaching the binding fixing part 184 of a specific structure to one end of the contact surface, it is possible to stably establish and mount the mechanical twin pain when storing the mechanical twin tongue, thereby preventing the fall of the mechanical twin pain during storage. Therefore, maintenance of mechanical twin tongs is easy.

In the foregoing detailed description of the invention, only specific embodiments thereof have been described. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the description, but rather includes all modifications, equivalents and substitutions within the spirit and scope of the invention as defined by the appended claims. Should be.

That is, the present invention is not limited to the above specific embodiments and descriptions, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. It is possible for such modifications to fall within the protection scope of the present invention.

10: towing crane
20: tow object
100: Mechanical Twin Tonks
101: tow beam
110: lifting beam
120: adapter box
121: adapter frame
122: anti-rotation protrusion
123: sliding rail structure
130: Tonks
131: gripping links
132: gripping jaws
141: first hinge structure
142: second hinge structure
143: third hinge structure
144: fourth hinge structure
150: Tongs Key
151: detachable binding structure
160: driving hinge portion
170: auxiliary support
180: anti-collision bump
181: contact surface
182: shock absorption unit
183: length change part
184: binding fixture

Claims (15)

The traction beams 101 which can be coupled to the traction cranes on both sides of the top are mounted one by one, spaced apart by a predetermined distance, and the adapter box 120 is formed by the first hinge structure 141 to be rotatable by a predetermined angle on both sides of the bottom. Lifting beams 110 mounted one by one;
An adapter box (120) mounted at a lower end thereof with a second hinge structure (142) rotatable by a predetermined angle in a direction orthogonal to the rotation direction of the first hinge structure (141);
A tongs 130 mounted to both sides of the lower end of the lifting beam 110 by the second hinge structure 142 of the adapter box 120 and pressing both sides of the towing object to grip the towing object; And
Collision of the structure that is mounted on each side of the pair of barrels 130 mounted on both lower ends of the lifting beam 110 to face each other, protruding by a predetermined length in a direction facing the pair of barrels 130 Prevention protrusion 180;
Mechanical twin tongs comprising a.
The method of claim 1,
The traction beam 101 is a mechanical twin barrel, characterized in that mounted by a third hinge structure (143) having the same orthogonal plane as the axis of rotation of the first hinge structure (141).
The method of claim 2,
The first hinge structure 141 and the third hinge structure 143 mounted on the lifting beam 110 constitute a quadrilateral shape when viewed from the front.
The method of claim 1,
The adapter box 120,
An adapter frame 121 rotatably mounted to the first hinge structure 141 and extending downward by a predetermined length;
Including,
The second hinge structure 142 is mounted on the lower end of the adapter frame 121, mechanical twin tongues.
The method of claim 4, wherein
Mechanical twin tongues, the lower end of the adapter frame 121, the anti-rotation projections 122 of the structure which protrudes downward by a predetermined length and extends toward the upper end surface of the tongs 130 is mounted.
The method of claim 1,
The second hinge structure 142 of the adapter box 120 is a mechanical twin tongs (Tongs Key, 150) for guiding the gripping operation of the tongs 130 is mounted.
The method of claim 6,
Mechanical tongs of the tongs (Tongs Key, 150), characterized in that the detachable binding structure 151 of the structure that is detachable and the second hinge structure 142 of the adapter box 120 is formed.
The method of claim 7, wherein
A sliding rail structure 123 is formed at the lower end of the second hinge structure 142,
The detachable binding structure 151 is a mechanical twin barrel, characterized in that formed in a structure corresponding to the cross-sectional shape of the sliding rail structure 123 so as to be fixed after sliding and binding to the sliding rail structure (123).
The method of claim 8,
The tongsuki 150 is a mechanical twin tongs, characterized in that after being bound to the sliding rail structure (123) is fixed by a fixing member.
The method of claim 1,
The tongs 130,
An upper end rotatably mounted to the second hinge structure 142, and a lower end of the pair of gripping links 131 bound by the gripping jaws 132 and the hinge structure; And
A gripping jaw 132 coupled to the gripping link 131 by a hinge structure, and one side of which is coupled to the fourth hinge structure 144 in a pair;
Mechanical twin tongs comprising a.
The method of claim 10,
The fourth hinge structure 144 which binds the pair of gripping jaws 132 to each other is equipped with a drive hinge 160 having a plate-like structure.
The upper end of the tongsuki 150 is mounted to the second hinge structure 142 of the adapter box 120,
The mechanical hinge hinge is characterized in that the lower end of the tongsuki 150 is mounted to the drive hinge 160.
The method of claim 11,
A mechanical twin tongue is provided at the lower end of the driving hinge unit 160 to be detachably attached to the auxiliary support 170 having a flat structure corresponding to the ground.
The method of claim 1,
The anti-collision protrusion 180,
A contact surface 181 mounted at one end and corresponding to one end of another anti-collision protrusion 180; And
An impact absorbing unit 182 mounted inside the protrusion preventing protrusion 180 and having an elastic member having an elastic restoring force of a predetermined size so as to absorb external force provided from the contact surface 181;
Mechanical twin tongs comprising a.
The method of claim 1,
The anti-collision protrusion 180,
A contact surface 181 mounted at one end and corresponding to one end of another anti-collision protrusion 180; And
A length change unit 183 mounted in the protrusion preventing protrusion 180 and configured to change an extension length of the collision preventing protrusion 180;
Mechanical twin tongs comprising a.
The method of claim 1,
The anti-collision protrusion 180,
A contact surface 181 mounted at one end and corresponding to one end of another anti-collision protrusion 180; And
A binding fixing part 184 mounted to one end of the contact surface 181 and configured to bind with the contact surface 181 of the other anti-projection protrusion 180;
Mechanical twin tongs comprising a.

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