JPS6214114Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a conveying device for long bodies, and in particular, the present invention is for conveying long bodies such as lances and sub-lances between a converter steel making yard and a lance maintenance yard. This invention relates to a transport device for long objects such as lances and sub-lances.

Inside the steelmaking factory, there is a yard where converters are installed and a yard where lances are maintained. Considering the functional differences in the equipment and fixtures housed in each, the height of the building in the former yard is The height is higher than the building in the latter yard, so when transporting lances between the converter yard and the lance maintenance yard for lance maintenance or lance installation, it is necessary to rehang the lance. It's summery.

Figures 1a to 1e are front views illustrating a conveyance procedure using a conventional lance conveyance device. to e will be explained in order.

In Figure 1a, the lance 1 is shown in the converter 5 of the converter yard 4.
It was extracted from the tank and held sideways, and was taken to Lance Conservation Yard 6.
It is shown suspended near the first
Figure b shows the lance 1 being hoisted down by the hoist 2, the lower end of the lance 1 is suspended by the hoist 3, and the lance 1 is tilted, and Figure 1c shows the lance 1. 1 is shown suspended by hoists 2 and 3 and co-suspended horizontally, and Figure 1 d shows a state in which lance 1 has been changed from the co-suspended state to only hoist 3. The lance 1 is shown in FIG. 1e in a predetermined position in the lance maintenance yard 6.

However, the lance transport procedure described above with reference to FIGS. 1a to 1e has the following drawbacks.

(1) Although the lance is suspended by a long wire rope from a hoist and tends to swing sideways, there is no means to restrain this swinging, so a hoist is used to move the lance. There is a drawback that the lance swings laterally during the procedure shown in FIGS. 1B and 1C and is dangerous during operation.

(2) This kind of transportation work itself is not uniform;
Since this work is a cooperative work performed using the hoists 2 and 3, a high level of skill is required to carry out this work, and there is a drawback in that it is necessary to rely only on skilled workers.

The object of the present invention is to provide a lance conveying device that eliminates and improves the above-mentioned drawbacks, and achieves the above object by providing a conveying device as described in the claims of the utility model registration. be able to. That is, the device of the present invention is a transport device for a long body such as a lance or sub-lance, and includes:
a pair of guide rails; an elevating and lowering conveying means having an elongated body grasping mechanism, the means being able to move up and down along the guide rails, and perpendicular to the plane formed by the pair of guide rails; The elevating means is movable in a vertical plane; A support guide fixed to the lower part of the guide rail is configured to rotate the elevating conveyance means; and The elevating conveyor moves on a horizontal line within a rotating plane. A horizontal conveyance means consisting of a freely movable driving cart and a driven cart, wherein one of the driving cart and the driven cart is provided with a lower end pedestal to prevent the lower end of the elongated body from slipping. The present invention relates to an apparatus for transporting elongated bodies such as lances and sub-lances, characterized by comprising means and;

Next, the present invention will be explained in detail.

In order to prevent the lance from swinging during the lifting operation, which occurs in conventional lance transport devices, the inventors of the present invention
When moving the lance from a vertically suspended state using one hoist to a horizontal state using a second hoist, the above-mentioned lateral movement occurs when moving the tip and lower end of the lance, respectively. After coming up with a device to prevent runout, we completed various tests and completed the present invention.

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 2 is a front view of the device of the present invention. The device of the present invention includes an elevating conveyance means 10 and an elevating guide means 20.
and horizontal conveyance means 30. Next, these main means will be explained.

FIG. 3 shows a plan view of the elevating and lowering conveyance means 10, and FIG. 4 shows a front view of this means. A guide roller 12 provided on the base 11 is guided by a guide rail 21 (described later), a support roller 13 is guided by contacting the outside of the brim of the guide rail 21, and the guide roller 12
The top surface of the base 11 is kept horizontal by the support rollers 13 and 13, and the base 11 can be rotated counterclockwise around the guide rollers 12 so that the top surface becomes vertical. A long body grasping mechanism is provided on the upper surface of the base 11, and a cylinder mechanism 15 is supported by a cylinder bracket 14 fixed to the base 11, and the mechanism is operated via a link 15b connected to the cylinder 15a. A pair of lance grasping claws 17 are supported so as to be openable and closable around a center pin 16, and the lance grasping claws 17 can grasp a lance having a diameter _d1 and a sub-lance having a diameter _d2 . A protrusion 11A serving as a cam is provided on the bottom surface of the base 11, and when the elevating and lowering conveyance means 10 is waiting at the top of the guide rail 21, the top surface of the base 11 is in a horizontal position and the guide rail A stopper 18 and a pin 19 are provided on the base 11 in order to lock it to the base 11.

5 is a front view of the elevating guide means 20, FIG. 6 is a plan view of FIG. 5, and FIG. 7 is a cross-sectional plan view of FIG. Within the section where the conveying means 10 goes up and down,
A pair of guide rails are arranged vertically and fixed to the building and the foundation, and guide the elevating and lowering conveyance means in a vertical plane perpendicular to the plane formed by the pair of guide rails, so as to be able to freely rotate and freely move up and down. . A support guide is provided at the lower part of the guide rail 21, and the support guide is composed of a guide roller bracket 22 fixed to the guide rail 21 and a guide roller 23 at the tip thereof. At the upper end of the guide rail 21, an operating deck 24 for operating and inspecting the elevating and lowering conveying means 10 is provided.

FIG. 8 shows a front view of the horizontal conveyance means 30, and FIG. 9 shows a perspective view of the lower end receiving stand 32. Horizontal conveyance means 3
0 consists of a driving truck 31 and a driven truck 37, and the driving truck 31 is provided with a lower end holder 32 for the lance, and the lower end holder 32 is provided with an opening 33 to facilitate taking out the lower end of the lance. The lower end cradle 32 is attached to a provided bracket 34 fixed to the drive carriage 31.
The pin 35 allows for pivoting in a vertical plane. The drive truck 31 is driven by a self-propelled machine 36. On the other hand, the driven cart 37 is provided with a lance receiver 38, which serves as a pillow to support the lance when the lance is laid down horizontally. A wire rope winding machine 39 is installed on either the driving truck 32 or the driven truck 37.
is mounted, and the driving truck 31 and the driven truck 3 are connected by wire rope tension with appropriate torque.
7 and stand by in a state where they are attracted to each other. The length of the wire rope 40 is the length of the driving truck 31 and the driven truck 3.
7 can be set at a distance suitable for horizontally receiving the lance 1. Therefore, both carts 32 and 37 are placed adjacent to each other while on standby so as not to take up space.
When transporting the lance, the lances are separated at a distance suitable for receiving the lance.

The procedure of lance conveyance by the lance conveyance apparatus of the present invention shown in the front view of FIG. 2 described above will be explained in sequence with reference to the drawings.

In FIG. 10, the lance 1 is hoisted down by the hoist 2 from the state shown in FIG.
The state in which the lower end portion is held by the lower end cradle 32 of the drive carriage 31 is shown. At this time, the lance grasping claw 17 provided on the elevating and lowering conveyance means 10 is closed and the upper end of the lance 1 is grasped, and the base 11
The top surface of is horizontal.

In FIG. 11, after the pin 19 (see FIGS. 3 and 4) of the base 11 has been removed, the drive carriage 31 maintains the lance while holding the lower end of the lance 1 with the lower end holder 32. It moves along the rails on the floor of the yard 6, and on the other hand, the elevating and lowering conveyance means 10
The upper end of the lance 1 is gripped by the lance gripping claw 17 of the lance gripping mechanism, and the lance 1 is hoisted down by the hoist 2 while corresponding to the movement of the drive cart 31 along the guide rail 21, so that the lance 1 is tilted. The current state is shown. When the above operation is carried out, as shown in FIG.
A is pushed by the guide roller 23 at the bottom of the guide rail 21, and the top surface of the base 11 gradually becomes vertical, so that the inclination of the lance grasping claw 17 corresponds to the inclination of the lance 1, and the lance 1 becomes horizontal. When the upper end of the lance comes to rest on the lance receiver 38 of the driven cart 37 as shown in FIG. 11, the upper surface of the base 11 becomes vertical as shown in FIG.
The surface of the lance grasping pawl 17 becomes vertical, and the lance 1 is soon released.

As described above, until the lance changes from the tilted state to the horizontal state and is released from the lance grasping pawl 17, even if the driving cart 31 moves, the driven cart 37 will not be able to stop both carts by the self-braking mechanism provided in this cart. The lance 1 is stopped by overcoming the wire rope tension between 31 and 37, but as soon as the upper end of the lance 1 is placed on the driven truck 37, the braking by the braking mechanism is released and the lance 1 is stopped by the traction force of the driving truck 31. Driven trolley 3
7 also begins to move, and both carts 31 and 37 can carry the lance 1 and proceed into the lance maintenance yard 6.

As shown in FIG. 12, the lance 1 that has been moved to the lance maintenance yard 6 can be unloaded from the horizontal transport means 30 by the hoist 3. According to the present invention, the hoist 3 is used only for loading and unloading lances as described above, unlike conventional devices.

The elevating and lowering conveyance means 10 is hoisted up by a hoist 2 and is locked in a fixed position above a guide rail 21.

Refurbished Lance 1 in Lance Maintenance Yard 6
To transport the waste to the converter yard, the procedure described above is reversed.

The procedure for transporting a lance for a converter has been described above, but the device of the present invention can also handle a sub-lance using the same procedure as described above.
It can also be advantageously used for elongated bodies similar to sub-lances, for example, when changing a continuous ingot of a predetermined length from a vertical position to a horizontal position in a small-scale continuous casting facility for bar and wire rods.

As mentioned above, according to the conveying device of the present invention, when changing the posture of a long object such as a lance to a vertical or horizontal state, the lateral movement of the upper and lower ends of the long object due to the long wire rope of the hoist etc. Shake,
Alternatively, when the elongated body is tilted with the upper end suspended and the lower end placed on the floor, it is possible to prevent the lower end from sliding on the floor, etc. This eliminates the need for special experts.

[Brief explanation of the drawing]

Figures 1 a to e are front views explaining the conveyance procedure using a conventional lance conveyance device, Figure 2 is a front view of the device of the present invention, Figure 3 is a plan view of the elevating and lowering conveyance means, and Figure 4 is a front view of this means. , FIG. 5 is a front view of the elevating guide means, FIG. 6 is a plan view taken in the direction of the arrows in FIG. 5, FIG. FIG. 9 is a perspective view of the lance lower end holder, and FIGS. 10 to 12 are front views illustrating the transport procedure by the lance transport device of the present invention. 1... Lance, 2... Hoist on the converter yard side, 3... Hoist on the lance maintenance yard side, 4...
...Converter yard, 5...Converter, 6...Lance maintenance yard, 10...Elevating and lowering conveyance means, 11...Base, 1
1A...Protrusion, 12...Guide roller, 13...
Support roller, 14... Cylinder bracket, 15
...Cylinder mechanism, 15a...Cylinder, 15b
... Link, 16 ... Center pin, 17 ... Lance grasping claw, 18 ... Stopper, 19 ... Pin,
20... Lifting guide means, 21... Guide rail, 22... Guide roller bracket, 23...
Guide roller, 24... Operation deck, 30... Horizontal conveyance means, 31... Drive cart, 32... Lower end cradle, 33... Opening, 34... Bracket, 3
5... Pin, 36... Self-propelled machine, 37... Followed cart, 38... Lance receiver, 39... Wire rope winding machine, 40... Wire rope.

Claims (1)

[Claims for Utility Model Registration] A transport device for a long object such as a lance or sublance, which includes: 1 installed vertically in a section where the long object is raised and lowered;
a pair of guide rails; an elevating and lowering conveying means having a long body grasping mechanism, the means being able to ascend and descend along the guide rails, and perpendicular to the plane formed by the pair of guide rails; the elevating means is movable in a vertical plane; a support guide fixed to the lower part of the guide rail for rotating the elevating conveying means; and The horizontal conveyance means is composed of a movable driving cart and a driven cart, and a lower end holder is disposed on either one of the driving cart and the driven cart to prevent the lower end of the elongated body from slipping. A conveyance device for a long object such as a lance or sub-lance, characterized by comprising: a horizontal conveyance means;