JPH0543924Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a trolley for conveying slabs.

(Prior Art) A slab transport trolley equipped with a heat-retaining cover for transporting slabs transported from continuous casting equipment in a steel mill to a hot rolling mill is well known.

For example, in Japanese Utility Model Application Publication No. 59-73008, a heat insulation box for slabs installed on a slab transport vehicle is divided into an upper box and a lower box, and a movable door that can be opened and closed by attaching or removing the upper box is installed on both sides of the lower box. A slab heating box mounted on a wall is disclosed.

(Problem to be solved by the invention) In the above-mentioned conventional technology, after loading high-temperature cast slabs onto a trolley, the upper box is placed on the truck, and the opening/closing doors are raised and installed on the left and right side walls of the lower box. It is constructed so as to close the opening, and has the advantage of lowering the lifting height of the crane when attaching and detaching the upper box, and allowing a greater number of slabs to be loaded and transported.

However, if the upper box is not positioned correctly when placed on the lower box,
Not only is it not possible to raise the opening/closing door to close the openings on the left and right walls of the lower box,
If the upper box is placed misaligned on top of the lower box, there is a danger that the opening/closing door may fall during transportation, and the mechanism may also be affected when the opening/closing door is slid up and down by attaching or removing the upper box. There was a problem that it would be difficult to open and close the door smoothly without some ingenuity.

(Means for Solving the Problems) The present invention has been made to advantageously solve the problems of the prior art described above. A lower cover is provided with heat insulating material, the upper surface is open, and is fixed on the trolley, and the lower cover is provided on the outer wall of the central part on both the left and right sides and is movable up and down.The upper end of the rod has a roller and is rotatable. A link mechanism has a plate rotatable via a pin at the end of the arm, and a link mechanism is connected to the plate of the link mechanism by a pin and is slidable up and down and left and right to close the opening via the link mechanism. an opening/closing door having internal guide rollers and external guide rollers on both sides and a shock absorber at the lower end; a positioning guide fixedly installed on the outside of both front and rear walls of the lower cover on the cart; and an upper part of the lower cover. The upper cover has a heat insulating material on the inner wall surface, and a positioning bracket that engages with the guide is fixed on the outer surface of both the front and rear walls. This trolley for conveying slabs is characterized in that a bracket is fixedly installed to engage with a roller provided at the upper end of the rod of the link mechanism.

(Function) This invention provides a heating cover divided into upper and lower halves on the slab conveyance trolley, places the upper cover on top of the lower cover, raises the opening/closing door via a link mechanism, and lifts the opening/closing door on both the left and right sides of the lower cover. In a device configured to close an opening in a wall, when the upper cover is placed on the lower cover, the upper cover is guided by a positioning guide provided on the trolley and lowers, ensuring accurate positioning. be able to. Furthermore, even if the positioning is performed accurately, when the rod of the link mechanism provided on the side wall of the lower cover engages with the bracket provided on the side wall of the upper cover, the friction caused by the left and right movement of the rod is caused by the rotation of the roller provided at its upper end. Since it is absorbed by the water, there is no problem in the operation of the link mechanism.

Furthermore, the opening/closing door has internal guide rollers and external guide rollers on both the left and right sides, and moves up and down along guides fixed to the lower cover, so vertical sliding is smooth, and the lower end has a shock absorber. Since it absorbs the shock when descending, it can withstand long-term use.

(Embodiment) Figs. 1 and 2 are perspective views showing an embodiment of the present invention, in which Fig. 1 shows the upper cover being lifted up, and Fig. 2 shows the upper cover placed on the lower cover. The figure shows a state in which a heat insulating box has been formed.

In the present invention, as shown in FIGS. 1 and 2, a lower cover 2 is fixedly installed on a truck 1. This lower cover 2 has two pairs of openings 3A, 3B and 4A, 4B spaced apart from each other by a distance L on both left and right side walls. Therefore, the lower cover 2 is composed of members 2A and 2B, which have a U-shaped cross section and are arranged opposite to each other, and members 2C and 2D at the left and right center portions.

The members 2C and 2D are provided with two link mechanisms 5A, 5B and 6A, 6B, respectively, and each link mechanism has an arm 8A, 8B, . . . that rotates through the viewpoints 7A, 7B, . Rods 10A, 10B, . . . have one ends of the arms connected upward through pins 9A, 9B, . . . , and pins 11A, 11B, . 13
Opening/closing door 1 provided so as to be able to slide up and down via B,...
4A, 14B, . . .

On the outside of both the front and rear walls of the lower cover 2 on the trolley 1, that is, on the outside of the members 2A and 2B, guides 15A and 15B are provided for positioning with the upper cover 16.
is permanently installed.

Both front and rear wall outer surfaces 16A, 16B of the upper cover 16
includes positioning brackets 17A, (17B not shown) that engage with the guides 15A, 15B.
The rods 1 of the link mechanisms 5A, 5B, 6A, 6B are fixedly installed on the outside of the left and right walls 16C, 16D.
Brackets 18A, 18B, etc. are fixedly installed in order to operate the link mechanism and raise the opening/closing doors 14A, 14B, etc. by contacting the upper ends of 0A, 10B, and pressing the respective rods. Hanging hardware 21A, 21B for lifting with lifter tongs 19A, 19B or lifting machinets 20A, 20B are provided. In the figure, 22 is a slab placed on a trolley, 23A, 23B,
23C and 23D are rollers provided at the upper end of the rod, and when the rod moves from side to side by the operation of the link mechanism, these rollers rotate and move the bracket 18.
This prevents friction between the rods A, 18B, . . . and the rods 10A, 10B, .

When the upper cover 16 is lowered by a lifter from the state shown in FIG. 1 in which the slab 22 is placed on the trolley 1,
The positioning brackets 17A, 17B engage with the positioning guides 15A, 15B provided on the cart to perform positioning, and the brackets 18A,
18B,... is the rod 1 of the link mechanism 5A, 5B...
Opening/closing door 14 by contacting and pressing 0A, 10B,...
A, 14B, ... are raised to open the openings 3A, 3B, 4.
A and 4B are closed, resulting in the state shown in FIG.

FIG. 3 is a side view illustrating the operating status of the link mechanism and the opening/closing door according to the present invention, and FIG. 4 is a sectional view illustrating the guide of the opening/closing door.

As shown in FIGS. 3 and 4, when the bracket 18A comes into contact with the roller 23A provided at the upper end of the rod 10A due to the lowering of the upper cover, the rod 1
As 0A descends, arm 8A rotates and opens/closes door 1.
4A is raised to the position shown by the dotted line in the figure to close the opening 4A. The movement of the opening/closing door 14A to the left and right due to the rotation of the arm 8A is absorbed by the tilting of the plate 12A. In the figure, 24A and 25B are pins,
26A is a plate. At the lower end of the opening/closing door 14A, there is a buffer mechanism 27 for absorbing the impact when the door falls.
is provided.

A heat insulating material 28 is provided on the inner wall surface of the opening/closing door 14A. This may be equivalent to the heat insulating material 29 provided on the inner wall surface of the lower cover 2.
A heat insulating material is also provided on the inner surface of 6.

The opening/closing door 14A is engaged with the lower cover 2 by welding a guide 30 having an L-shaped cross section to the aggregate 36 fixed to the lower cover 2. A guide roller 33 and an external guide roller 34 are provided, and the door 1 can be opened and closed along the guide 30 with both guide rollers 33 and 34.
4A moves up and down. A heat flow prevention plate 35 is provided to prevent the heat of the slab from leaking to the outside as much as possible.

(Effects of the invention) As described above, according to the invention, the upper cover can be positioned accurately when placed on the lower cover, and the door can be opened and closed smoothly using the link mechanism. Since a buffer mechanism is provided at the lower end of the opening/closing door, it absorbs the impact when the door is lowered and has the effect of extending the life of the opening/closing door.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective views showing an embodiment of the present invention, Figure 3 is a side view illustrating the operating status of the link mechanism and the opening/closing door according to the present invention, and Figure 4 illustrates the guide of the opening/closing door. FIG. 1 is the trolley, 2 is the lower cover, 2A, 2B, 2
C, 2D are members, 3A, 3B, 4A, 4B are openings, 5A, 5B, 6A, 6B are link mechanisms, 14
A and 14B are opening/closing doors, 15A and 15B are guides,
16 is an upper cover, 17A, 17B are brackets, 18A, 18B are brackets, 21A, 21
B is a hanging hardware, 23A, 23B, 23C, and 23D are rollers, 27 is a buffer mechanism, and 28 and 29 are heat insulating materials.

Claims (1)

[Scope of utility model registration request] Two pairs of openings are provided at intervals on the left and right side walls, a heat insulating material is provided on the inner wall surface, a lower cover is fixed on the trolley with the upper surface open, and the lower cover is provided on the outer wall at the center of the left and right sides of the lower cover. a link mechanism that has a roller at the upper end of a rod that can be moved up and down, and a plate that is rotatable via a pin at the end of an arm that is rotatable; An opening/closing door that can be slid up and down and that closes the opening via a link mechanism, has an internal guide roller and an external guide roller on both left and right sides, and has a buffer device at the lower end, and the lower cover is mounted on the trolley. It consists of a positioning guide fixed to the outside of both the front and rear walls of the housing, and an upper cover that can be placed over the lower cover and has a heat insulating material on the inner wall surface. A trolley for conveying cast slabs, characterized in that a positioning bracket that engages with a guide is fixed, and brackets that engage with a roller provided at the upper end of the rod of the link mechanism are fixed on the outer surfaces of both left and right walls.