JPS6232988Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a matsudogan suitable for use in a taphole of a blast furnace.

[Technical background of the invention and its problems]

The Matsudogan used in the taphole of blast furnaces is
Generally, as shown in FIG. 1, the gun has a barrel part A, and a muzzle loading window B is opened at the upper center of the barrel part A, and a muzzle C is inserted through this loading window B.

However, in the conventional muzzle gun with the above configuration, the opening of the muzzle insertion window B is 200 x 150.
(m/m), it is not easy to fill the mud C and remove the remaining mud, which poses a big restriction, especially when it comes to mechanizing these operations.

[Purpose of invention]

The present invention has focused on the above-mentioned problems of the prior art, and has been devised for the purpose of providing a muzzle gun that can facilitate the filling of muzzle and the removal of remaining muzzle, and that can be mechanized. be.

[Summary of the idea]

In order to achieve the above purpose, in this invention,
The gun barrel is divided into a front gun barrel and a rear gun barrel, and a pair of left and right support members extending parallel to the front gun barrel are provided on both sides of the rear gun barrel. A vertically rotating cylinder that rotatably supports a shaft protruding from both sides of the barrel, and tilts and rotates the front gun forward about the shaft between the lower part of the rear gun barrel and the upper part of the front gun barrel. A positioning cylinder is attached to the upper part of the rear gun barrel, and a positioning cylinder at the tip of the piston rod is formed to be able to be inserted into and removed from the guide part of the gun barrel, and a cylinder is attached to the lower part of the rear gun barrel when the front gun barrel is closed. The lower end is provided with a positioning claw that abuts and positions the
The gun is characterized in that after the positioning cylinder is driven to remove the positioning knob, the vertical rotation cylinder is driven to rotate the front gun barrel in a forward tilting direction and open the interior. It is.

[Example of idea]

Embodiments of the present invention will be described below with reference to FIGS. 2 to 4.

FIG. 2 shows a plan view of a main part of an embodiment of a muzzle gun according to the present invention, FIG. 3 shows a side view of the same, and FIG. 4 shows a cross section of the same.

In the present invention, the gun barrel is divided into two parts, a front barrel 1 and a rear barrel 2.

At the left and right sides of the rear gun barrel 2, the bases of support members 3, 3 fit into the recess 4 and the protrusion 5, and are fixed with bolts 6, 6, and the tips of these support members 3, 3 are attached to the front gun barrel 1. The front gun barrel 1 extends parallel to the direction, and the front gun barrel 1 is attached to the bearing portions 7, 7 at the tips of these support members 3, 3.
Shafts 8, 8 protruding from both sides of the end plates 10, 8 are rotatably supported via bushes 9, and the end plates 10,
10 prevents it from coming off. Thereby, the front gun barrel 1 is supported so as to be rotatable in a vertical plane relative to the rear gun barrel 2.

A vertical rotation cylinder 1 driven by hydraulic pressure is mounted on a bracket 11 at the lower part of one side of the rear gun barrel 2.
The base of the cylinder 12 is rotatably supported in a vertical plane by a horizontal pin 13, and the tip of the piston rod 14 of this cylinder 12 is attached to a bracket 15 at the upper part of one side of the front barrel 1 by a horizontal pin 16. By driving this cylinder 12, the front gun barrel 1 is rotated around shafts 8, 8 into a vertical position.

At the top of the rear gun barrel 2 is a positioning cylinder 17.
A positioning lever 19 is attached to the tip of the piston rod 18 of this cylinder 17.
When the gun 8 is extended, it is press-fitted into a guide part 20 having a hole structure provided in the upper part of the front gun barrel 1, so that the front gun barrel 1 and the rear gun barrel 2 are placed on the same axis.

A positioning pawl 21 is positioned at the bottom of the rear gun barrel 2 by fitting its recess 22 with a protrusion 23 on the rear gun barrel 2 side, and is fixed with a bolt 24. A protrusion 26 at the lower end of the front gun barrel 1 engages and abuts on 25 to determine its position.

Next, the operation of the above embodiment will be explained.

When filling the muzzle or removing the muzzle remaining inside, the positioning cylinder 17 is driven from the state shown in the third figure to move the piston rod 18 backward, and the positioning rod 19 is moved from the guide part 20 of the front gun barrel 1. pull it out. Next, when the vertical rotation cylinder 12 is driven to extend the piston rod 14, the front gun barrel 1 is tilted forward and rotated about the shafts 8, 8, as shown by the chain line in FIG. It is placed in a vertical position and the interior is opened, making it possible to easily fill the mat and remove the remaining mat.

When the above work is completed, by driving the vertical rotation cylinder 12 in the direction in which the piston rod 14 is shortened, the front gun barrel 1 is rotated in the direction in which it rises around the shafts 8, 8, as shown by the solid line in Figure 3. Return to state.
This return position is located at the protrusion 26 at the lower end of the front gun barrel 1.
is determined by fitting and abutting the engaging portion 25 of the positioning claw 21 of the rear gun barrel 2, and then the positioning cylinder 17 is driven in the direction in which the piston rod 18 extends, and the positioning claw 19 is moved into the front gun barrel 1. The front gun barrel 1 is firmly fixed to the rear gun barrel 2 on the same axis by being press-fitted into the guide portion 20 of the gun.

Note that the structure of the support members 3, 3, the structure of the pivot portion between the support members 3, 3 and the front gun barrel 1, etc., are not limited to the illustrated embodiment, and the design may be changed as appropriate.

[Effect of idea]

As described above, the present invention divides the gun barrel of the Matsudo gun into two parts, the front barrel and the rear barrel, supports the front barrel so that it can rotate in a forward tilting direction relative to the rear barrel, and moves the front barrel forward. Since the interior is opened upward when the gun is turned upside down, it is extremely easy to fill the muzzle and remove remaining muzzle, and since the front gun barrel is separate from the rear gun barrel, The return matsudo does not enter the rear gun barrel,
It has various effects, such as making it easier to replace and inspect the plunger that pushes out the muzzle in the front gun barrel.

[Brief explanation of the drawing]

Figure 1 is a side view of a conventional Matsudogan, Figure 2
The drawings are a plan view of essential parts showing an embodiment of the muzzle gun according to the present invention, FIG. 3 is a side view of the same, and FIG. 4 is a sectional view taken along the line of FIG. 2. 1... Front gun barrel, 2... Rear gun barrel, 3, 3...
Support member, 7... Bearing portion, 8, 8... Shaft, 12...
... Vertical rotation cylinder, 17 ... Positioning cylinder, 19 ... Positioning knob, 20 ... Guide portion, 21 ... Positioning claw.

Claims (1)

[Scope of utility model registration request] The gun barrel is divided into a front gun barrel and a rear gun barrel, and a pair of left and right support members extending parallel to the front gun barrel are provided on both sides of the rear gun barrel. A vertical rotation cylinder is provided between a lower part of the rear gun barrel and an upper part of the front gun barrel, which rotatably supports a shaft protruding from both sides, and tilts and rotates the front gun barrel forward about the shaft. A positioning cylinder is attached to the upper part of the rear gun barrel, and a positioning cylinder at the tip of the piston rod is formed in the guide part of the gun barrel so that it can be inserted into and removed from the guide part of the gun barrel. It is equipped with a positioning claw that the lower end touches to determine the position.
The matsudo gun is characterized in that, after the positioning cylinder is driven to remove the positioning knob, the vertical rotation cylinder is driven to rotate the front barrel in a forward tilting direction to open the interior.