KR200334048Y1 - Bucket hanger allowing automatic attachment and detachment - Google Patents

Abstract

A bucket hanger for fastening scrap metal buckets to a molten iron crane is disclosed. The bucket hanger has an open portion formed at an upper portion of the frame in the form of an empty box; A pair of hook gripping parts hingeably mounted to an inner wall of the frame and extending out of the frame through the opening; And a connecting piece for hingeably connecting the plate to which the crane hook is seated and between the plate and the upper end of the hook gripping portion, wherein the hook pin pulls the hook gripping portion toward the hook when the plate moves downward. Hinge means hingedly coupled between branches; Locking means disposed at the bottom of the plate to be engaged when the plate moves downward to prevent upward movement of the touch plate; An elastic member mounted to the frame adjacent to the gripping portion and protruding upward by an elastic force, and an arm coupled to the frame and the gripping portion, respectively, to be hinged to open the hinge by the protrusion of the elastic member. It is provided with an opening means including. The bucket hanger can be quickly and easily fastened to the hook of the molten iron crane, thereby minimizing downtime and improving productivity.

Description

Automatic removable bucket hanger {BUCKET HANGER ALLOWING AUTOMATIC ATTACHMENT AND DETACHMENT}

The present invention relates to a bucket hanger for fastening scrap metal buckets to a molten iron crane, and more particularly, it can be quickly and easily fastened to the hook of a molten iron crane, and thus can be automatically attached and detached to improve productivity by minimizing downtime. It is about a bucket hanger.

In general, an electric furnace is a facility for manufacturing molten steel by using scrap iron and molten iron as raw materials to dissolve scrap iron by arc heat of an electrode.

In order to supply scrap metal and molten iron to the electric furnace, a scrap metal loading crane and a molten iron crane are installed and operated at an upper portion of 30M above. The scrap metal loading crane loads scrap metal into the scrap bucket and uses the hanger of the scrap metal loading crane to hang the scrap bucket. Lifting and charging in the electric furnace, the molten iron crane to lift the molten iron ladle using the hanger of the molten iron crane when the molten iron in the ladle to charge the molten iron in the electric furnace.

However, if there is a case in which the scrap metal of the bucket cannot be charged into the electric furnace due to a sudden failure of the scrap metal loading crane, the scrap bucket must be lifted and loaded into the electric furnace with the molten iron crane, but the width of the scrap bucket is wider than the width of the ladle. Hanger cranes can not lift the scrap buckets. Therefore, the hanger of the molten iron crane should be replaced with a spare scrap bucket hanger seated on the hanger seat.

Looking at the conventional hanger replacement method, as shown in Figure 1, the hanger hook of one of the two hanger rings (16) by lowering the hook 12 of the no-load state suspended on the crane 10 in accordance with the signal of the signal 16) to hook on one hook (12). The hook 12 is then slightly raised to prevent it from being released and the crane 10 is moved toward the other hanger ring 16 to raise the hook 12 of the chartered crane so that the second hanger ring 16 is also arrowed. The hook 12 is fastened in the direction (A).

However, in order to replace the hanger 14, since the signal is signaled to the narrow hanger seat 18 of the 10M height, the signal must be raised to catch the swing of the hook 12 by hand to enter the hanger ring 16, the finger There is a risk of stenosis and a lower fall from collision. In particular, the hanger ring 16 on the opposite side should be fastened in such a state that one hanger ring of the two hanger rings 16 is fastened so as not to be detached from the hook 12, so that the hanger is not easily fastened. 14) It takes a long time to replace the operation and the operation is stopped.

Therefore, the present invention has been devised to solve the above-mentioned problems of the prior art, and the object of the present invention is to be able to be fast and easily fastened to the hook of the molten iron crane in the event of a breakdown of the scrap metal loading crane, thereby minimizing downtime. It is to provide an automatic removable bucket hanger to improve the. Another object of the present invention is to prevent a safety accident such as a worker pinching or falling by replacing the hanger easily without the operator's signal and auxiliary work.

Figure 2 is a perspective view of the automatic removable bucket hanger according to the present invention.

3 is a perspective view of the arm of FIG. 2;

4 is an exploded perspective view of the elastic machine of FIG.

5 is a perspective view of the locking mechanism of FIG.

6 is an exploded view of FIG. 5;

7 is a perspective view of a bucket hanger of the present invention while the hook is held.

8 to 10 is a view for explaining the gripping and locking operation of the bucket hanger of the present invention.

<Explanation of symbols of main parts in drawings>

106: gripper 112: cancer

126: elastic mechanism 140, 160: locking mechanism

148: rocker plate 152: rocker bar

According to a feature of the present invention for achieving the above object of the present invention there is provided a detachable bucket hanger. The bucket hanger has an open portion formed at an upper portion of the frame in the form of an empty box; A pair of hook gripping parts hingeably mounted to an inner wall of the frame and extending out of the frame through the opening; And a connecting piece for hingeably connecting the plate to which the crane hook is seated and between the plate and the upper end of the hook gripping portion, wherein the hook pin pulls the hook gripping portion toward the hook when the plate moves downward. Hinge means hingedly coupled between branches; Locking means disposed at the bottom of the plate to be engaged when the plate moves downward to prevent upward movement of the touch plate; An elastic member mounted to the frame adjacent to the gripping portion and protruding upward by an elastic force, and an arm coupled to the frame and the gripping portion, respectively, to be hinged to open the hinge by the protrusion of the elastic member. It is provided with an opening means including.

Various features and advantages of the present invention will be described in detail as follows in connection with the accompanying drawings.

Figure 2 is a perspective view of the automatic removable bucket hanger according to the present invention, Figure 3 is a perspective view of the arm of Figure 2, Figure 4 is an exploded perspective view of the elastic device of Figure 2, Figure 5 is a perspective view of the locking mechanism of Figure 2 6 is an exploded view of FIG. 5, FIG. 7 is a perspective view of a bucket hanger of the present invention in a state of holding a hook, and FIGS. 8 to 10 are views illustrating gripping and locking operations of the bucket hanger of the present invention.

2, the automatic detachable bucket hanger 100 according to the present invention is to suspend the scrap metal bucket (not shown) to the hook 12 of the crane, generally hook 12 to the frame 102 of the box shape ) Are equipped with various components for fastening.

The frame 102 is seated on the hanger seat 18 and has an opening 104 formed thereon. A pair of grippers 106 hingedly mounted inside the sidewall of the frame 102 by pins 108 extends upwardly through this opening 104, with hooks 12 at the top of the grippers 106. And fastening bars 110 for fastening with each other are attached.

A touch plate 142 is provided between the pair of grippers 106, and these grippers 106 and the touch plate 142 are hingedly connected to each other by a connecting piece 138. That is, each connecting piece 138 is pinned so that both ends are hinged to the gripper 106 and the touch plate 142.

An L-shaped arm 112 is mounted on the side of each gripper 106. As shown in detail in FIG. 3, a loop 116 at the top of the first link 114 of this arm 112 is hingedly coupled to the gripper 106 by a pin 122, and the arm ( The bend 120 between the first link 114 and the second link 118 of 112 is hingeably coupled to the bracket 124 by pins 122. Since the bracket 124 is fixed to the upper surface of the frame 102, the arm 112 is hingedly coupled to the upper surface of the frame 102.

A pair of elastic mechanisms 126 are also mounted on the front portion of the frame 102 between the pair of arms 112. As shown in detail in FIG. 4, each of the elastic mechanisms 126 is fixed to the housing by a disc shaped cover 130 that is bolted to the upper surface of the frame 102, and through the holes of the cover 130. The pillar 128b of the pusher 128 extends downward into the spring housing 136 and is engaged with the pressing plate 128c. At this time, the pusher 128 is not the upper head (128a) does not pass through the hole of the cover 130, the lower pillar (128b) has a size that can slide through the hole of the cover 130. The spring 132 and the touch bar 134 are mounted in the inner space 136a of the spring housing 136 below the pressing plate 128c. Since the upper head 134a of the touch bar 134 is larger in diameter than the hole 136b at the bottom of the housing 136 and the pillar 134b is smaller in diameter than the hole 136b, when no external force is applied, the spring The pillar 134b of the touch bar 134 protrudes out of the housing 136 through the hole 136b by the elastic force of the 132.

Hereinafter, referring to FIGS. 5 and 6, a locking mechanism of a bucket hanger according to the present invention will be described. The locking mechanism includes an upper first locking mechanism 140 and a lower second locking mechanism 160.

First, the first locking mechanism 140 will be described. As described above, the first locking mechanism 140 may allow the touch plate 142 to be hinged to the pair of grippers 106 by the connecting piece 138 as described above. Are combined. A pair of hook guides 144 are formed on the upper surface of the touch plate 142 along the long edge, and a rectangular through hole 146 is formed on the right side of the drawing. The rocker plate 148 is fixed to the bottom left of the bottom surface of the touch plate 142 to extend downward, and a rocker hole 150 is formed at the bottom thereof. The rocker bar 152 passing through the through hole 146 is coupled to the right portion of the touch plate 142 by the rocker spring housing 156. The rocker bar 152 is a small diameter portion 152a inserted into the through hole 146, a lower diameter diameter portion 152c at the lower side, a disc 152b and a diameter portion between the small diameter portion 152a and the diameter diameter portion 152c. 152c consists of a lower inclined surface 152d. Meanwhile, the rocker spring housing 156 is fixed to the bottom of the touch plate 142 around the through hole 146 with a bolt, and the through hole 156a is formed to accommodate the spring 154 and the rocker bar 152. The lower hole 156b has a size that allows the enlarged diameter portion 152c to pass but does not allow the spring 154 to pass therethrough. In addition, since the disc 152b is smaller than the inner diameter 156a of the housing 156 but has a diameter larger than that of the spring 154, the rocker bar 152 is movable up and down between the touch plate 142 and the housing 156. maintain.

The second locking mechanism 160 positioned below the first locking mechanism 140 includes a box-shaped locking block 162 fixed to the bottom of the housing 102 and a plurality of locking elements mounted thereto. The locking block 162 shown in FIG. 6 in cross-sectional view cut along the line AA of FIG. ) And key holes 166 formed from one side to intersect these rocker plates and bar holes 164, 168. The key hole 166 extends beyond the rocker plate hole 164 to form the key receiving portion 170, and the portion crossing the rocker plate hole 164 is reduced in diameter to form the jaw 172. .

In this key hole 166, a lock key 174 and a forward key 176 are arranged, and these keys 174 and 176 are connected by an inner spring 178. As shown in FIG. In addition, an outer spring 180 is disposed around the locking key 174 between the protrusion 174b of the locking key 174 and the jaw 172 of the key hole 166. The lock key 174 is inclined downward to the left side of the figure to form the inclined surface 174a, and the forward key 176 is inclined downward to the right side of the figure to form the inclined surface 176a.

On the other hand, the cover 182 is bolted to close the key hole 166 on the right side of the locking block 162, and a stopper 184 is mounted on the inside of the cover 182 to the right of the forward key 176. Regulate the movement of

The operation of the automatic detachable bucket hanger according to the present invention as described above will be described as follows with reference to FIGS. 2, 3 and 8 to 10.

Electric furnace raw material supply process to lift the bucket containing the scrap metal into the electric furnace with the scrap metal charging crane and to dissolve some of the scrap metal using the arc heat of the electrode, and then to lift the ladle containing the molten iron with the molten iron crane and load it into the electric furnace. During the operation, if an abnormality occurs in the scrap metal loading crane, which is a facility for transporting the scrap metal bucket, the molten iron crane separates the molten iron ladle carrying hanger, which is fastened to the sovereign hook 12, on the hanger seating plate and then separates it. Scrap bucket carrying bucket hanger 100 according to the invention is moved to the seated hanger seat 18.

The touch bar 134 is located inside the hanger frame 102 and protrudes below the hanger frame 102 from the spring housing 136 by the force of the spring 132, but the bucket hanger 100 is hanger seat 18 ), The pusher 128 is raised together while being squeezed by the hanger seat 18. The raised pusher 128 protrudes above the hanger frame 102 to raise the second link 118 of the arm 112 to hinge the arm 112. A pair of grippers 106 is opened to the left and right as shown in FIG. 2 by the hinge of the arm 112 to tension the connecting piece 138 to lift the touch plate 142.

In this state, when the crane hook 12 is lowered to fasten the scrap metal bucket hanger 100 as shown in FIG. 7, the touch plate 142 is lowered by the weight of the crane hook 12 and the connecting piece 138. ), The left and right grippers 106 are engaged inward, so that the fastening bars 110 of the grippers 106 are positioned adjacent to the posts of the hooks 12 as shown in dashed lines in FIG. 9A.

Meanwhile, as shown in FIGS. 8A and 8B, as for the locking mechanisms 140 and 160, the small diameter portion 152a of the rocker bar 152 protruding from the upper end of the touch plate 142 is pressed by the crane hook 12 to lock the rocker. Bar 152 is lowered. If hook 12 is then lowered further along arrow B, rocker plate 148 enters rocker plate hole 164 and rocker bar 152 is rocker bar hole, as shown in FIGS. 9A and 9B. (168) Enter In this case, the inclined surface 152d of the rocker bar 152 advances downward while contacting the inclined surface 176a of the forward key 176 and thus the forward key 176 is pushed along the arrow C while the locking key ( 174 is moved toward the key receiving portion 172. At this time, the locking key 174 passes through the rocker hole 150 of the rocker plate 148 and the end thereof is received in the key receiving portion 172 to fasten the rocker plate 148 to the locking block 162.

When the gripper 106 is retracted as described above, the second link 118 pushes the pusher 128 downward while the arm 112, which is fastened by the pin 122 on the side of the gripper 106, is hinged. Compresses the spring 132 in 136.

In this state, when the crane hook 12 is raised to lift the hanger 100 as shown in FIG. 10A, the pusher 128 is raised by the elastic force of the spring 132 and the arm 112 is hinged to lift the gripper 106. When the touch plate 142 is raised, the lower end of the rocker hole 150 of the rocker plate 148 is caught by the locking key 174 as shown in FIG. 10B.

When the crane hook 12 is slightly raised in this state, the crane hook 12 is engaged with the gripper 106, that is, the fastening bar 110, and the touch plate 142 is no longer raised but the expansion force of the spring 154 is increased. Only the rocker bar 152 is lifted up and separated from the forward key 176. At this time, the forward key 176 is pushed toward the cover 182 by the expansion force of the inner spring 178, but the locking key 174 is two springs located in the hanger frame 102 under the expansion force of the outer spring 180. The expansion force of 132 maintains the fastening state with the rocker hole 150 of the rocker plate 148.

Then, as shown in FIG. 10A, when the crane hook 12 lifts the entire hanger 100 in the direction of the arrow D, the gripper 106 is further pulled toward the crane hook 12 and the rocker plate 148. Will fall slightly. In this case, the locking key 174 is weakened with the rocker hole 150 of the rocker plate 148 and is released from the rocker hole 150 by the elastic force of the outer spring 180 to release the fastening. Will be moved to. In addition, the touch bar 134 pressed by the hanger seat 18 protrudes from the bottom of the hanger frame 102, thereby releasing the compression of the spring 132.

After the scrap metal is charged into the electric furnace with the bucket hanger 100 replaced in the above manner, and when the scrap metal loading crane is recovered, the bucket hanger 100 is seated on the hanger seat 12 to molten the bucket hanger 100 again. Replace with ladle hauler.

First, when the hanger 100 is seated on the hanger seat 12, the touch bar 134 protruding from the bottom of the hanger frame 102 is raised to press the spring 132, and the pusher 128 is hanger frame ( 102, the arm 112 is pushed upward while the gripper 106 is pushed from side to side. Here, the gripper 106 is easily opened from side to side by the weight of the gripper 106 even if it is slightly tilted in the vertical state, for example, only about 1 degree further.

Automatic detachable bucket hanger according to the present invention as described above can be quickly and easily fastened to the hook of the molten iron crane at the time of failure of the scrap-loading crane can minimize the downtime can improve productivity. In addition, the hanger can be easily replaced without the operator's signal and auxiliary work, it is possible for the operator to prevent safety accidents such as pinching or falling.

In the above described with reference to a preferred embodiment of the present invention, those of ordinary skill in the art that the present invention in the scope of the invention without departing from the spirit and scope of the present invention described in the utility model registration claims It will be understood that modifications and changes can be made.

Claims (2)

A frame having an open portion formed at an upper portion thereof and having an empty inside; A pair of hook gripping parts hingeably mounted to an inner wall of the frame and extending out of the frame through the opening; And a connecting piece for hingeably connecting the plate to which the crane hook is seated and between the plate and the upper end of the hook gripping portion, wherein the hook pin pulls the hook gripping portion toward the hook when the plate moves downward. Hinge means hingedly coupled between branches; Locking means disposed at the bottom of the plate to be engaged when the plate moves downward to prevent upward movement of the touch plate; An elastic member mounted to the frame adjacent to the gripping portion and protruding upward by an elastic force, and an arm coupled to the frame and the gripping portion, respectively, to be hinged to open the hinge by the protrusion of the elastic member. Opening means including Bucket hanger characterized in that it comprises. The bucket hanger according to claim 1, wherein the locking means is engaged by downward movement of the plate and released by upward movement of the plate.