KR101061506B1 - Grab bucket and scale collection system using the same - Google Patents

Abstract

The present invention relates to a grab bucket and a scale collection system using the same, which is provided to be operated by the tension and the weight of the rope so that a separate power means is unnecessary.

According to the present invention, in the grab bucket which is provided to be poured after hanging the wire rope (11,41) by grasping or lifting the object to be positioned, the pair of grippers provided to hold the object ( 31); A core shaft 32 extending in the vertical direction so that one end of each gripper 31 is rotatably coupled, and a locking jaw 33 formed on a lower side of the longitudinal direction; A bearing member 34 and an elevating member 35 coupled to the core shaft 32 in an up and down manner so as to be capable of elevating; A plurality of rods 36 having both ends rotatably coupled to one side of the bearing member 34 and each gripper 31; A stop pin 37 provided to protrude downward on one side of the bearing member 34; It is coupled to one side of the elevating member 35 is provided to be rotated by the stop pin (37), one end includes a projection piece 38 is formed with a projection 39 is fastened or released to the engaging jaw (33) A grab bucket and a scale collection system using the same are provided.

Bucket, Gripper, Core Shaft, Wire Rope, Scale, Collection System

Description

Grab bucket and Scale collecting system using this}

The present invention relates to a grab bucket and a scale collection system using the same, and more particularly, to a grab bucket and a scale collection system using the same, which are provided to be operated by the tension and the weight of the rope so that a separate power means is unnecessary. It is about.

Generally, grab buckets are for hanging on cranes or hoists to grab or lift small particles of material such as iron scale, coal, or sand and pour them into a predetermined place. Conventional buckets are wire ropes of cranes or hoists. In the suspended state is to be opened and closed on the opening and closing rope or cylinder operated by a separate power means.

Therefore, according to the conventional bucket, as the power means for the opening and closing operation is provided separately, not only the structure is complicated, but also provided to be easily connected to a power source such as electricity or engine, there is a limit in use, and also the power means When directly mounted on the bucket, the weight of the bucket itself is heavy, which may cause anxiety in installation or operation depending on the weight.

In addition, as an example in which the operation is performed using such a conventional bucket, a conventional system for collecting iron powder (hereinafter referred to as "scale") generated during steelmaking or rolling process of an ironworks will be described below.

Usually, a water channel is provided inside a rolling mill of a steel mill to discharge cooling water used for heat treatment and descaling of steel in a rolling process, and the channel extends to the outside of the rolling mill and is connected to a water collecting tank. A yard for collecting scales accumulated in the sump is provided at a position proximate to the sump, and a hoist structure is provided at the top of the sump and the yard to move the bucket.

With this configuration, the bucket is repeatedly moved on the hoist structure while suspended from the hoist to stack the scale in the sump at the bottom of the yard, and then the scale accumulated in the yard is to be loaded and processed in a separate vehicle. have.

However, according to the conventional scale collection system, as the yard for stacking the scale is provided outside the rolling mill, a yard space is required accordingly, and after the scale is accumulated at the bottom of the yard by the bucket, The cumulative scale must be loaded again in a separate vehicle, which is a laborious task.

The present invention is to solve the problems as described above, the present invention is provided to operate by the tension and the weight of the rope is made of a non-powerless operation structure that does not require a separate power means, the structure is very simple as well as its own weight It provides a grab bucket that can greatly reduce the size of the grab bucket, and also a grab bucket that can significantly reduce the space occupied by the use of this grab bucket, which greatly reduces the space occupied by eliminating the need for a separate yard. It relates to a scale collection system used.

According to a feature of the present invention, in the grab bucket is provided to pour out after hanging the wire rope (11,41) to grab or lift the object to be processed,

A pair of grippers 31 provided to hold a workpiece;

A core shaft 32 extending in the vertical direction so that one end of each gripper 31 is rotatably coupled, and a locking jaw 33 formed on a lower side of the longitudinal direction;

A bearing member 34 and an elevating member 35 coupled to the core shaft 32 in an up and down manner so as to be capable of elevating;

A plurality of rods 36 having both ends rotatably coupled to one side of the bearing member 34 and each gripper 31;

A stop pin 37 provided to protrude downward on one side of the bearing member 34;

It is coupled to one side of the elevating member 35 is provided to be rotated by the stop pin (37), one end includes a projection piece 38 is formed with a projection 39 is fastened or released to the engaging jaw (33) Is done by;

The elevating member 35 is coupled to the wire ropes 11 and 41 so as to be lifted by the tension of the wire ropes 11 and 41 or in the state in which the tension of the wire ropes 11 and 41 is lowered or released. It is provided so as to descend by, and as the elevating member 35 of the elevating member 35 raises the core shaft 32 by the projection 39 to close the gripper 31 or by the stop pin 37 A grab bucket is provided, which is provided to open the gripper 31 in a state in which the protrusion 39 is separated from the locking jaw 33.

According to another feature of the invention, each gripper 31 and bearing member 34 are interconnected by an auxiliary support means 43 composed of a stretchable cylinder, by the auxiliary support means 43 the gripper ( A grab bucket is provided, which is adapted to support the closed state of 31.

According to another feature of the invention, the scale (S) in the form of iron stacked in the sump (1) by using the bucket 30 hanging on the wire rope 11 of the hoist (10) reciprocating on the structure (2). In a scale collection system,

The bucket 30 includes a pair of grippers 31 provided to hold the object to be processed;

A core shaft 32 extending in the vertical direction so that one end of each gripper 31 is rotatably coupled and a locking jaw 33 formed on one side of the lower side in the longitudinal direction;

A bearing member 34 and an elevating member 35 coupled to the core shaft 32 in an up and down manner so as to be capable of elevating;

A plurality of rods 36 having both ends rotatably coupled to one side of the bearing member 34 and each gripper 31;

A stop pin 37 provided to protrude downward on one side of the bearing member 34;

It is coupled to one side of the elevating member 35 is provided to be rotated by the stop pin (37), one end includes a projection piece 38 is formed with a projection 39 is fastened or released to the engaging jaw (33) Is done by;

The elevating member 35 is coupled to the wire ropes 11 and 41 so as to be lifted by the tension of the wire ropes 11 and 41 or in the state in which the tension of the wire ropes 11 and 41 is lowered or released. It is provided so as to descend by, and as the elevating member 35 of the elevating member 35 raises the core shaft 32 by the projection 39 to close the gripper 31 or by the stop pin 37 The protrusion 39 is provided to open the gripper 31 in a state in which the protrusion 39 is separated from the locking jaw 33;

One side of the water collecting tank 1 is provided with a hopper 21 formed with an inlet and an outlet at the top and bottom, respectively, so that the scale S collected by the bucket 30 can be loaded and discharged. A grid partition 22 is provided in contact with the bucket 30 so that the tension of the wire rope 11 is reduced;

The lower portion of the hopper 21 is provided with a scale collection system, characterized in that the loading transfer cart 23 is provided to be movable by a rail or a moving wheel.

According to another feature of the invention, the hoist 10 is controlled by the controller so that the bucket 30 is automatically operable according to the operating conditions including the collection position and the number of times in the collection tank (1) Provided is a scale collection system, which is provided.

As described above, according to the present invention, a pair of grippers 31 capable of grasping the object to be processed are rotatably coupled to one core shaft 32, and the tension of the wire ropes 11 and 41 is reduced. By lifting the core shaft 32 by its own weight to close or open the gripper 31, a separate power means is made of unnecessary powerless operation structure, which is very simple in configuration and easy to manufacture as well as the bucket 30 ) It can significantly reduce the weight of its own has the advantage of providing convenience in installation and operation.

In addition, since the structure is provided in a simple non-powered operation structure, there is an advantage that can be easily used in various applications by minimizing the installation constraints as well as providing convenience in maintenance due to less trouble of the device.

In addition, the auxiliary support means 43 is further provided to maintain the closed state of the gripper 31, so that the amount of the workpiece to be gripped by the gripper 31 is too large, the gripper 31 is completely closed Even when it is not, there is an advantage that the workpiece is supported so that it does not spill during transportation, and thus a more robust and safe work can be achieved.

In addition, the scale collection system 20 using the bucket 30 of the present invention, in addition to the bucket 30, a hopper 21 having a partition 22 in the inlet and a movable portion provided below the hopper 21. Since it is made of a loading transfer cart 23, it can be easily installed even in a narrow space, and thus it is not necessary to provide a separate yard for stacking the scale S as in the prior art, thereby greatly reducing the space occupied by the device and compact scale. There is an advantage to build the collection system 20.

In addition, since the loading transfer cart 23 is provided, the scale S accumulated on the bottom of the yard as in the prior art can be moved on its own or directly processed without having to be loaded again on a transportation means, thereby providing convenience in operation. There is an advantage to this.

In addition, the bucket 30 is provided by the hoist 10 controlled by the controller to automatically operate in accordance with the operating conditions, including the collection position and the number of times, such that, even if the operator is not specially arranged unmanned automation work is possible There is no need to have a dedicated worker, thereby reducing the labor costs or the efficient arrangement of a limited number of workers can be made.

Objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 4 illustrate buckets according to various embodiments of the present invention, and FIGS. 5 to 7 illustrate scale collection systems using buckets.

1 to 3, the grab bucket 30 according to an embodiment is provided with a pair of grippers 31 to hold the feature of the small particles, such as sand or scale, the gripper ( 31) is provided in the form of a container having a shell shape. In addition, the grippers 31 are coupled to each other by a vertically extending core shaft 32 so as to be located at a central portion thereof. A horizontally extending hinge shaft 40 is coupled to an end of the core shaft 32. One end of each gripper 31 is rotatably coupled to both ends of the shaft 40, and a locking jaw 33 is formed at a position proximate to the lower portion of the core shaft 32 in the longitudinal direction.

By this configuration, the gripper 31 is opened and closed around the core shaft 32 to grab the object to be poured out from another position, and the following describes a more specific configuration for this operation.

On the core shaft 32 is provided a bearing member 34 and the lifting member 35 coupled up and down, so that the bearing member 34 and the lifting member 35 are fitted to the outer peripheral surface of the core shaft 32. Tubes 34a and 35a are formed at the center thereof, and engaging pieces 34b and 35b extending in the horizontal direction are formed on both sides of the outer circumferential surface of the tubes 34a and 35a, respectively.

In this configuration, the bearing member 34 is connected by a rod 36 coupled to one side of each gripper 31, wherein both ends of the rod 36 are one side of each gripper 31. And rotatably coupled to the engaging piece 34b of the bearing member 34, the rods 36 are located on opposite sides of the core shaft 32 and at the same time in the width direction of each gripper 31. It is provided in pairs at both ends, and one side of the tube body 34a of the bearing member 34 is provided with a stop pin 37 so as to protrude downward from an end of a separate coupling piece 34c extending in the horizontal direction. .

In addition, the lifting member 35 is formed with a protrusion 39 for fastening to the locking projection 33 formed on the core shaft 32 inward, and at the same time, the protrusion 39 is formed by the stop pin 37. The protrusion piece 38 is formed so as to be released is released, the protrusion piece 38 is hinged at approximately the middle portion is the projection 39 formed at the other end as the stop pin 37 is contacted at the end Is rotated to be separated from the locking step (33).

In addition, a wire rope 42 having a predetermined length is coupled to the coupling piece 35b formed on the elevating member 35, and a tip of the wire rope 42 is connected to the end of the hoist 10 as shown in FIG. 5. A separate bracket 42 is provided to engage the hook 12 provided at the end of the wire rope 11. In this case, the wire ropes 11 and 41 coupled to the elevating member 35 are not limited to the above-described coupling method but may be formed by various coupling methods. For example, the wire rope 11 of the hoist 10 The wire rope 42 coupled to the elevating member 35 may be directly coupled to the hook 12 in a state in which the bracket 42 is not directly connected or provided.

Referring to the operating state of the present invention by the configuration as described above, when the bucket 30 of the present invention is lowered in a state suspended on the wire ropes (11, 41), the gripper 31 touches the workpiece, As the wire ropes 11 and 41 are loosened, their tension is weakened, whereby the elevating member 35 is lowered on the core shaft 32 by its own weight. At this time, the gripper 31 is in an open state as shown in FIG. 2, and the elevating member 35 reaches the position of the locking jaw 33 formed on the core shaft 32.

In this state, when the wire rope 11 of the hoist 10 is wound and lifts the bucket 30, the protrusion 39 is caught by the locking jaw 33 and the core shaft 32 is pulled up. When the core shaft 32 is raised, the gripper 31 rotatably coupled to the core shaft 32 is closed while holding the workpiece.

At this time, the hoist 10 is a wire rope 11 in a state in which the end of each gripper 31 is in contact with each other and completely closed, the load of the wire rope 11 is stopped by detecting the load by the load cell. , 41 to move to a predetermined position while maintaining the tension, the lifting member 35 is positioned so that the protruding piece 38 is in contact with the stop pin 37 (shown in Figure 3). ).

Thereafter, the bucket 30 pours out the object at a predetermined place according to the movement of the hoist 10. For this purpose, the bucket 30 is lowered by the hoist 10 so that the gripper 31 is predetermined. The elevating member 35 is brought into contact with the core shaft 32 while the tension of the wire ropes 11 and 41 is released (or lowered). It will descend from the top. At this time, the stop pin 37 in contact with the end of the protruding piece 38 rotates the protruding piece 38 by its own weight to separate the protrusion 39 from the locking step 33. Stop pin 37 is provided in the form of a round bar that can be moved up and down in the pipe (34d) formed on the coupling piece (34c), the engaging frame (37a, 37b) is formed at intervals up and down in the longitudinal direction, As the tension of the wire ropes 11 and 41 is released in a state held by the protruding piece 38 as the lifting member 35 rises, the protruding piece 38 is rotated by its own weight, thereby causing the protrusion. 39 is separated from the locking step 33. When the tension is applied to the wire ropes 11 and 41 again in this state (the state in which the protrusions 38 are separated from the latching jaw 33), the protruding pieces 38 are connected to the stop pins 37 and the The bearing member 34 is pushed up to open the gripper 31.

Here, it is natural that the bearing member 34 is coupled to the tube body 34a while maintaining a predetermined clearance so that the core shaft 32 is slidable, and the core shaft 32 is the bearing member 34. And the support member 34 is lowered while being supported by the rod 36, and the bearing member 34 is operated by the rod 36 when the object to be processed in the gripper 31 is poured into the core shaft 32. Since a predetermined interval rises on the core shaft 32 and the bearing member 34 is not supported in a fixed state to the other one, but the mutually elevated state while being mutually supported.

According to the present invention by the above configuration, in addition to the above-described configuration, the auxiliary support means 43 which will be described later is further provided to grip the object to be processed by the gripper 31 so that the gripper 31 is completely closed. It may be provided so that the support force can be compensated when a slight gap is generated. As shown in FIG. 4, the auxiliary supporting means 43 is provided in the form of a cylinder interconnecting the grippers 31 and the bearing member 34. The auxiliary supporting means 43 is provided separately. Rather than being operated by the power means, it is preferable to be provided with a gas spring cylinder or the like which can be operated by itself. It is to be provided in a relatively small size due to its characteristics are commonly used in automobiles and doors.

On the other hand, the bucket 30 of the present invention as described above can be easily used to collect the scale (S) generated during the rolling process mainly in the rolling mill of the steel mill, the scale using the bucket 30 of the present invention The collection system 20 will be described with reference to the drawings as follows.

As shown in Figure 5 to 7, the structure (2) is provided with a hoist (10) is installed on top of the sump (1), the scale (S) in the form of iron, the hoist 10 is provided with a wire rope The bucket 30 which is suspended by 11 is provided, and a hopper 21 for loading the scale S collected by the bucket 30 is provided at one side adjacent to the water collecting tank 1. . The hopper 21 is integrally welded to the structure 2, and an inlet and an outlet are respectively formed at the top and the bottom thereof, and a grid-shaped partition 22 is formed at the inlet to contact the bucket 30. In order to reduce the tension of the wire rope 11 of the hoist 10 is provided so that the bucket 30 is in contact to pour out the scale (S).

In addition, the lower portion of the hopper 21 is provided with a loading transfer cart 23 which can be moved by a rail or a moving wheel, and the loading transfer trolley 23 has a capacity that is higher than that of the hopper 21. It is formed relatively small so that a predetermined amount is loaded by a damper provided at the outlet of the hopper 21 so that it can be directly transported to a processing place on a rail or taken out to a processing place by a forklift or the like.

Since the hopper 21 and the loading transport cart 23 positioned directly below it do not occupy much space, the hopper 21 can be easily installed in a rolling mill and does not need to have a separate yard as in the prior art.

In addition, the scale collection system 20 is the hoist 10 (the bucket 30 is a non-powered operation structure does not require a separate control means) the operation of the manual or automatic so that the collection of the scale (S) is made Preferably, on the structure 2, a controller (not shown) for controlling the hoist 10 is provided at a position proximate to the hopper 21, which is controlled by the bucket 30. By controlling the position of the hoist 10 and the operation of the wire rope 11 so that the scale (S) can be collected automatically, the collection position and the number of collection of the bucket 30 are automatically made according to the operating conditions. It is possible to build an unmanned automation system that does not need to be arranged by a separate operator for operating the collection system 20 of the present invention.

6 and 7 illustrate a rail 3 on which the stairs 24 and the hoist 10 provided on the structure 2 are moved.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a side view showing a bucket according to an embodiment of the present invention

2 is a front sectional view showing an operating state according to the embodiment of FIG.

3 is a front sectional view showing another operating state according to the embodiment of FIG.

Figure 4 is a side view showing a bucket according to another embodiment of the present invention

5 is a front view showing a collection system according to an embodiment of the present invention;

Figure 6 is a side view showing a part of the collection system according to an embodiment of the present invention

7 is a plan view showing a collection system according to an embodiment of the present invention;

Claims (4)

In the grab bucket which is provided to be suspended after the wire rope (11,41) to grab or lift the object to be moved, A pair of grippers 31 provided to hold a workpiece; A core shaft 32 extending in the vertical direction so that one end of each gripper 31 is rotatably coupled, and a locking jaw 33 formed on a lower side of the longitudinal direction; A bearing member 34 and an elevating member 35 coupled to the core shaft 32 in an up and down manner so as to be capable of elevating; A plurality of rods 36 having both ends rotatably coupled to one side of the bearing member 34 and each gripper 31; A stop pin 37 provided to protrude downward on one side of the bearing member 34; It is coupled to one side of the elevating member 35 is provided to be rotated by the stop pin (37), one end includes a projection piece 38 is formed with a projection 39 is fastened or released to the engaging jaw (33) Is done by; The elevating member 35 is coupled to the wire ropes 11 and 41 so as to be lifted by the tension of the wire ropes 11 and 41 or in the state in which the tension of the wire ropes 11 and 41 is lowered or released. It is provided so as to descend by, and as the elevating member 35 of the elevating member 35 raises the core shaft 32 by the projection 39 to close the gripper 31 or by the stop pin 37 Grab bucket, characterized in that the projection (39) is provided to open the gripper (31) in a state separated from the engaging jaw (33). 2. The gripper (31) according to claim 1, wherein the grippers (31) and bearing members (34) are interconnected by auxiliary supporting means (43) consisting of a retractable cylinder, and the gripper (31) by said auxiliary supporting means (43). Grab bucket, characterized in that for supporting the closed state of. In the scale collection system configured to collect iron scales (S) stacked in the sump (1) by using the bucket 30 hanging on the wire rope 11 of the hoist (10) reciprocating on the structure (2), The bucket 30 includes a pair of grippers 31 provided to hold the object to be processed; A core shaft 32 extending in the vertical direction so that one end of each gripper 31 is rotatably coupled, and a locking jaw 33 formed on a lower side of the longitudinal direction; A bearing member 34 and an elevating member 35 coupled to the core shaft 32 in an up and down manner so as to be capable of elevating; A plurality of rods 36 having both ends rotatably coupled to one side of the bearing member 34 and each gripper 31; A stop pin 37 provided to protrude downward on one side of the bearing member 34; It is coupled to one side of the elevating member 35 is provided to be rotated by the stop pin (37), one end includes a projection piece 38 is formed with a projection 39 is fastened or released to the engaging jaw (33) Is done by; The elevating member 35 is coupled to the wire ropes 11 and 41 so as to be lifted by the tension of the wire ropes 11 and 41 or in the state in which the tension of the wire ropes 11 and 41 is lowered or released. It is provided so as to descend by, and as the elevating member 35 of the elevating member 35 raises the core shaft 32 by the projection 39 to close the gripper 31 or by the stop pin 37 The protrusion 39 is provided to open the gripper 31 in a state in which the protrusion 39 is separated from the locking jaw 33; One side of the water collecting tank 1 is provided with a hopper 21 formed with an inlet and an outlet at the top and bottom, respectively, so that the scale S collected by the bucket 30 can be loaded and discharged. A grid partition 22 is provided in contact with the bucket 30 so that the tension of the wire rope 11 is reduced; A scale collection system, characterized in that the lower portion of the hopper 21 is provided with a loading transfer cart 23 provided to be movable by a rail or a moving wheel. According to claim 3, wherein the bucket 30 is provided so that the hoist 10 is controlled by a controller to automatically operate in accordance with the operating conditions including the collection position and the number of times in the collection tank (1) Characteristic scale collection system.

Images