JP2581525Y2 - Small lid opening and closing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for opening and closing a leveling lid provided on an upper part of a coke oven lid.

[0002]

2. Description of the Related Art Conventionally, a self-sealing type small lid has been developed in which the knife edge of the small lid is extruded with the force of a spring and pressed against the sheet surface of the opening.

That is, when the small lid is opened and closed by rotating the small lid in the horizontal direction about its support shaft, the knife edge is pushed out by the force of the spring. Therefore, at the time of turning in the opening direction and the turning direction of the closing direction, the knife edge moves sideways while being in contact with the sheet surface. In other words, when the knife edge is pushed out, the knife edge interferes with the leveling opening when closed and breaks. When the knife edge is opened, friction between the knife surface and the sheet surface eventually causes poor contact between the knife edge and the sheet surface, causing gas leakage.

Since the conventional small lid is attached to the furnace lid by a hinge (support shaft), the surface pressure of the knife edge against the furnace lid tends to increase on the hinge side. As a result, the blade edge of the knife edge is unevenly worn, and the sheet surface on the furnace lid side is easily damaged, which causes gas leakage. In addition, a pushing amount of the knife edge by the pressure welding device is required, but the necessary pushing amount cannot be secured by the small lid attached to the furnace lid by the conventional hinge.

Therefore, when opening and closing the small lid, the knife edge is slightly retracted to eliminate frictional resistance due to interference or mutual sliding between the knife edge and the sheet surface, and to eliminate the difference in surface pressure on the sheet surface. The technology was developed (Japanese Utility Model Laid-Open No. 2-78545).

However, it is not clear how to operate the handle of the rotating cam in the left-right direction for eliminating the difference of the interference, frictional resistance or surface pressure. There has been a problem that it is difficult to reduce the labor by increasing the risk and it is difficult to quickly open and close the small lid.

[0007]

In the present invention, the knife edge does not interfere with the leveling opening when the small lid is opened and closed, and does not slide in the direction of the seat surface (left-right direction) and slides on the seat surface. It is an object of the present invention to obtain a small lid opening / closing device provided with a device for automatically operating the small lid with the surface pressure of the knife edge being even.

[0008]

In order to achieve the above object, the present invention provides a knife edge of a small lid which can be pressed and retracted toward a leveling sheet surface on an upper part of a furnace lid of a coke oven and an operating tool thereof. In a small-lid opening / closing device having a knife edge pressing / retracting mechanism on the small lid side by the forward / reverse rotation cam on the small lid side, a driving device for operating the operating tool on the small lid opening / closing side is directed toward the small lid. comprising a retractable, provided via the elastic member a knife edge on the small lid side relative to the seat surface, the Seigyakukai
The small lid pressing operation by the moving cam and the elastic member
If edge closes the sheet surface and presses down with the cam
After release, the knife edge is sealed via the elastic member.
It is constituted by a small lid opening and closing device characterized by being opened from the front surface .

[0009]

In the present invention, when the small lid opening / closing device 16 is advanced toward the small lid 9, the driving device 8 provided on the device 16 side and the driving device 8 are provided.
As a result, the pins 5 and 5 ′ operated by this contact the operating tool 4 of the knife edge 10, and the pressing and retreating mechanism 9 ′ is operated via the operating tool 4.
Work, to retreat back the small lid 9 and the knife edge 10 may separate the sealing state by the pressure contact between the sheet surface 12 and the knife edge 10. Thereafter, the small lid opening / closing device 16 is operated to open the small lid and open the leveling opening 11.

When the small lid 9 is closed, the small lid 9 is first closed by an operation reverse to the above-described operation, and then the operation tool 4 and the
The small lid 9 is pressed by the push-back
The knife edge 10 can be advanced through the material 14 toward the sheet surface 12 of the leveling opening 11 and pressed to seal the sheet surface 12 with the knife edge 10.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A leveling opening 11 is provided in a furnace cover 15 of a coke oven, and the arm 1 shown in FIGS.
8 'is protruded laterally, and one end of an opening and closing support frame 19 for supporting the small lid 9 of the leveling opening 11 at the tip of the arm member 18 is pivotally supported by a support shaft 17 so as to be freely opened and closed by 180 degrees. A small lid 9 is provided on the inner surface of 19. Elastic member support cylinders 20 are formed on the small lid 9 at substantially equal intervals along the outer periphery, and a knife edge 10 is provided which advances toward the sheet surface 12 of the leveling opening 11 by the force of the elastic member 14.

A coil spring is used for the elastic member 14, but may be pneumatic or hydraulic. Irregularities are provided on the outer surface of the small lid 9.
And a pivoting shaft 7 of the cam 6 is rotatably supported by an opening / closing support frame 19, and a tip of the pivot shaft 7 protruding outside the opening / closing support frame 19 is provided with an operating tool by a left-right forward / reverse turning handle 4 '. 4 and
The cam 4 can be rotated forward and backward in the left-right direction by the handle 4 ', thereby forming a pressing and retreating mechanism 9'.

As shown in FIGS. 11 and 12, the rotary cam 6 is provided with an inclined surface 21 between the convex portion 6 'and the concave portion 6 ", and as shown in FIG. The small lid 9 can be retracted and the small lid 9 can be advanced against the force of the member 14 (compressed) as shown in FIG.

A coke extruder is provided on the platform of the coke oven, and a front-rear sliding machine frame 1 is provided on the extruder toward the furnace side and the non-furnace side of a leveling device or a small-lid cleaning device. The frame 1 has a center line d of the support shaft 17 shown in FIG.
Is provided with a small lid opening / closing device 16 which is moved forward and backward by a cylinder 22 toward the front end. The opening / closing device 16 is provided with a grooved cam 18 (FIG. 2) for rotating the operation arm 17 'of the support shaft 17 by 180 degrees, and the tip pin 17 "of the operation arm 17' provided on the support shaft 17 is connected to the grooved cam. Operation arm 1 by reciprocating motion of 18
The small lid 9 can be opened and closed by rotating the 7 ', the support shaft 17, and the opening and closing support frame 19 by 180 degrees. 18 of small lid 9
For the 0-degree turning, the operating arm 17 'may be driven by a gear mechanism.

The rotating cam 6 is provided on the front-rear sliding machine frame 1.
The arm 2, which is reciprocally rotatable by a cylinder 25 around a horizontal pin 24 from the rear (horizontal) to the front toward the center line c of the rotary shaft 7, and the distal end of the arm 2 The support bracket 3 supports a substantially sector-shaped forward / reverse turning metal fitting 3 in the left and right direction, and two pins 5 and 5 ′ for right / left rotating in the left and right directions of the handle 4 ′ are protruded from the turning metal fitting 3. A space is interposed between the pins 5 and 5 ′, and the output shaft of the left-right forward / reverse drive device 8 is connected to the drive shaft 13. The driving device 8 includes a forward / reverse electric motor, forward / reverse hydraulic motor, forward / reverse rotor cylinder, and the like.

Accordingly, the sliding machine frame 1 is advanced to the position shown in FIG. 1 and stopped, and the arm 2 is moved from the solid line position (rearward position) in FIG. 1 to the virtual line position (front lower position) in FIG. Center line c
(The state is shown in FIG. 3). The forward / reverse rotation fitting 3 may be moved forward and backward by a cylinder.

In this way, the right-and-left forward / reverse rotating bracket 3 is provided.
The two pins 5 and 5 'provided on both sides of the operating tool 4 by the handle 4' advance as shown in FIGS. In this state, the driving device 8 is rotated in the forward direction (the direction of the arrow a).
As a result, the left pin 5 comes into contact with the handle 4 'as shown in FIG.
(B) Rotate to the position shown in the figure.

The turning cam 6 also turns in the direction of arrow a by the turning of the handle 4 'in the forward direction (FIGS. 11 and 12 (a)).
Then, the small lid 9 is advanced by the cam 6 from the advanced state shown in FIGS. 7 and 9 (the state in which the knife edge 10 is pressed against the sheet surface 12 against the force of the elastic member 14), and the retracted state shown in FIG. (The knife edge 10 can be moved slightly away from the sheet surface 12 by the force of the elastic member 14), and then the arm 2 is turned to the solid line position (rearward position) in FIG. Then, in this state, the small lid opening / closing device 16 is
Is retracted toward the center line d (FIG. 7), the small lid 9 can be turned 180 degrees about the support shaft 17 to open the leveling opening 11.

The small lid opening and closing device 16 is connected to the center line d of the support shaft 17.
The small lid 9 is moved forward along FIG.
When the arm 2 is rotated forward and downward in this state, the pins 5, 5 'advance to both sides of the handle 4' as shown in FIG.

Then, the driving device 8 is rotated counterclockwise to the left, and as shown in FIG.
The handle 4 'is turned to the left by turning in the direction of arrow b, and the turning cam 6 is turned in the direction of arrow b (FIG. 10 (e) and FIG. 12 (b)). Thus, the small lid 9 can be advanced from the position shown in FIG. 8 to the position shown in FIG. 7, and the knife edge 10 can be pressed against the sheet surface 12 against the force of the elastic member 14.

Reference numerals 26 and 26 'in FIG. 4 denote limit switches for stopping the rotation of the pins 5 and 5', 27 denotes an arm for operating the limit switch, 28 denotes an up / down adjustment frame, and 29 denotes a cam retainer. . In the above example, the method of opening and closing the small lid in the horizontal direction has been described. However, the present invention can be similarly applied to a small lid of a vertical opening type.

[0022]

Since the present invention is constructed as described above, the elastic member 14 of the knife edge 10 is used for opening and closing the small lid 9 (actually disclosed in Japanese Unexamined Utility Model Publication No. 2-78545) with a self-sealing type, that is, a knife edge pushing and retreating mechanism. Can be performed quickly and safely without human power before the opening and closing operation by the small lid opening and closing device 16 so that the knife edge 10 can be opened.
Can be prevented from being damaged or abraded.

[Brief description of the drawings]

FIG. 1 is a side view showing a small lid opening and closing device of the present invention.

FIG. 2 is a plan view taken along the line AA of FIG. 1;

FIG. 3 is an enlarged side view of FIG. 2 in a state where the arm is turned downward.

FIG. 4 is a front view along the line BB in FIG. 3;

FIG. 5 is a front view taken along line CC of FIG. 3;

FIG. 6 is a front view taken along the line DD in FIG. 3;

FIG. 7 is a plan view of a small lid advanced state.

FIG. 8 is a plan view of the small lid retracted state.

FIG. 9 is an enlarged plan view of the operating state of the knife edge.

FIGS. 10 (a), (b), (c), (d), and (e) are views of a steering wheel operation state.

FIG. 11 is a perspective view of a left-right forward / reverse rotation cam.

FIGS. 12 (a) and (b) are explanatory diagrams of the operation of the cam and the small lid.

FIG. 13 is a plan view of a centering device of the small lid opening / closing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front-back sliding machine frame 2 Arms 3 Left-right forward / reverse rotation bracket 4 Operating tool 4 'Left-right forward / reverse rotation handle 5, 5' Left-right forward / reverse rotation pin 6 Left / right forward / reverse rotation cam 7 Rotation axis Reference Signs List 8 driving device 9 small lid 9 'pressing and retreating mechanism 10 knife edge 11 leveling opening 12 seat surface 16 small lid opening and closing device

Claims (1)

(57) [Scope of request for utility model registration] 1. A knife edge of a small lid that can be pressed and retracted toward a leveling sheet surface on an upper part of a furnace lid of a coke oven, and a knife edge on the sheet surface by a forward / reverse rotating cam provided on an operation tool thereof. In a small lid opening / closing device provided with a pressing / retracting mechanism on the small lid side, a driving device for operating the operation tool is provided on the small lid opening / closing device side so as to be able to advance and retreat toward the small lid, and a knife edge with respect to the sheet surface is provided with a small lid. provided through the elastic member to the side, the
The small lid pressing operation by the forward / reverse rotating cam and the elastic member
The knife edge closes the seat surface and the cam
After releasing the pressing knife edge through the elastic member
A small lid opening and closing device, wherein the small lid is opened from a sheet surface .