JPH11325741A - Grate bar locking mechanism on side wall of sintering machine pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the internal volumes of the pallets of a sintering machine, by reducing the height of floor covers laid on grate bars to a half by passing inserting locking pins into groove sections formed at the end sections of end grate bars from through holes formed through the side wall of a pallet truck for sintering machine. SOLUTION: Groove sections composed of upper and lower pawl sections 5 and 6 which are inserted into insulation pieces 3 mounted on beams 2 are formed at both ends of end grate bars 1 installed between a plurality of beams 2. Then, after locking pins 7 are inserted into through holes 9 formed through the side wall 8 of a pallet main body A, the end grate bars 1 are locked by inserting the front end sides of the pins 7 into the groove sections. In addition, the base-side end sides of the pins 7 are detachably fixed to the side wall 8 of the main body A by means of bolts 14 and retaining brackets 15. Therefore, the height of floor covers laid on the end grate bars 1 can be reduced to a half as compared with the conventional example and, accordingly, the internal volume of the pallet is increased by the reduced height.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for a grate bar attached to and detached from a pallet bottom of a sintering machine.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 8, in a pallet truck a of a sintering machine, side walls d are mounted on both left and right ends of a truck c on which wheels b are disposed on both left and right sides, and a grate bar is provided on the bottom thereof.
e, e,... are provided.

The above-mentioned grate bars e, e,... Are formed between T-shaped digits g covered with an insulation piece f and have a shape as shown in FIG. e, the fitting grooves h on both sides are fitted with the above-mentioned insulation pieces f.
It is to be installed while being fitted to.

Therefore, as shown in FIG.
e, e,... obliquely insert the fitting groove f into the insulation piece f while passing it obliquely between the above-mentioned insulation pieces f. FIG. 11 shows that -e 'has no space to be inclined.
As shown in FIG. 3, the end is formed using an end bar e 'in which a fitting groove f is formed only on one end, and a side wall d at an upper end thereof is provided.
This is a mechanism for holding the end bar e 'by the grate metal fitting i penetrated through the hole.

[0005]

However, in the sintering machine pallet truck a having the above structure, as shown in FIG. 12, the floor ore j is laid on the grate bar e to prevent clogging, and the iron ore k is moved. The iron ore k is inserted between the side walls d to sinter the iron ore k. At present, it is set to about twice the height of the holding metal i.

Therefore, the amount of iron ore charged is limited by the height of the floor j, and furthermore, the yield is reduced due to air leakage from the grate bar presser fitting insertion hole 1 penetrating through the side wall a, and the burning is reduced. There are problems such as non-uniformity.

Further, since the grate bar retainer insertion hole 1 is always exposed to a high temperature, deterioration such as cracking is liable to occur, and there is a problem that the side wall a itself must be replaced.

In order to solve the above-mentioned problems, the present invention provides a grate bar lock device having a mechanism for locking an end bar with a lock pin penetrating a lower portion of the end bar from a side wall of a pallet body. The purpose is to do so.

[0009]

The above object of the present invention can be achieved by an apparatus having the following configuration. That is, the gist of the invention is that the lock pin is inserted through the through hole formed in the side wall of the pallet truck of the sintering machine with the end bar in the lower part,
A side wall of a pallet of a sintering machine, wherein a tip end side of the lock pin is fitted into a lock pin fitting groove formed at one end or both ends of the end bar to lock the end bar. It is a grate bar lock mechanism.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings showing the embodiments. Embodiment 1 As shown in FIGS. 1 and 2, an end bar 1 provided between the digits 2 and 2 is for fitting the other end to an insulation piece 3 mounted on the digit 2. Groove 4
Is formed.

The fitting groove 4 is formed of an upper pawl 5 and a lower pawl 6, and the upper pawl 5 extends to the vicinity of the center of the digit 2, and the lower pawl 6 is formed of the fitting pawl 4.
Are moored to the insulation piece 3 when fitted to the insulation piece 3 mounted on the digit 2, so that the length does not come off.

Further, the upper pawl 5 of the lock pin fitting groove 4 'at one end of the end bar 1 extends to near the center of the digit 2, and the lower pawl 6 extends between the digits 2 and 2. At the time of installation, the length is such that it does not come into contact with the digit 2, and the width of the lock pin fitting groove 4 'is a width into which the lock pin 7 fits.

Therefore, as shown in FIG.
When the lock pin 7 is fitted into the through hole 9 provided in the side wall 8 of the end plate, the distal end side of the lock pin 7 becomes an end bar.
The end bar 1 is locked in a state where the inside of the lock pin fitting groove 4 'at one end is inserted.

Therefore, as shown in FIG. 3, the ends of the digit 2 and the insulation piece 3 are cut out so that the distal end of the lock pin 7 can be fitted without any trouble, and the lock pin is fitted at one end of the end bar 1. The lower pawl 6 of the groove 4 ′ can be extended without contacting the end of the end bar 1, and the lock pin 7 can be inserted without the tip of the lock 2 contacting the end of the digit 2. Things.

Next, as shown in FIG. 4, the lock pin 7 has a split pin insertion hole 10 formed at the base end thereof. Then, the cotter pin 11 is inserted into the cotter pin insertion hole 10, and the cotter pin 11 is pressed against the side wall 12 by a holding bracket 15 attached by a bolt 14 via a spring washer 13, whereby the lock pin 7 is fixed. The mechanism locks the end bar 1 by fitting, and removes the holding bracket 15 to unlock the end bar 1 by pulling out the lock pin 7.

Embodiment 2 As shown in FIG. 5, an end bar 1 provided between the digits 2 and 2 has lock pin fitting grooves 4 'at both ends thereof.
4 'is formed.

The lock pin fitting groove 4 'is formed of an upper pawl 5 and a lower pawl 6, and the upper pawl 5 extends to the vicinity of the center of the digit 2, and the lower pawl 6 is provided with the end lug. -When transferring Toba-1 between digits 2 and 2,
The length is such that it does not abut the digit 2, and the width of the lock pin fitting groove 4 'is a width into which the lock pin 7 fits.

Therefore, as shown in FIG. 6, the ends of the digit 2 and the insulation piece 3 are notched so that the distal end side of the lock pin 7 can be fitted without any trouble, and the lock pins at both ends of the end bar 1 are fitted. The lower pawl 6 of the groove 4 ′ can be extended without contacting the end of the end bar 1, and the lock pin 7 can be inserted without the tip of the lock 2 contacting the end of the digit 2. Things.

Therefore, as shown in FIG.
The lock pin 7 is fitted into the through hole 9 provided in the side wall 8 of
The end pin bar 1 is locked by the lock pin 7 by pressing the split pin 11 inserted into the split pin insertion hole 10 of the lock pin 7 with the pressing bracket 15.

[0020]

As described above, according to the present invention, by locking the end bar at the lower portion thereof, the height of the floor laying on the bar is about half that of the prior art. The height may be sufficient, and the volume in the pallet is increased by the capacity, so that efficient sintering can be performed. Further, since the lock pin is located at the lower part of the grate bar, the lock pin is not directly exposed to a high temperature at the time of sintering, so that deterioration due to heat can be prevented.

[Brief description of the drawings]

FIG. 1 is an end bar according to a first embodiment of the present invention;
FIG.

FIG. 2 is an end bar according to the first embodiment of the present invention;
It is explanatory drawing which shows the lock state of.

FIG. 3 is an explanatory diagram showing an end of a digit and an insulation piece according to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram illustrating an attached state of a lock pin according to the first embodiment of the present invention.

FIG. 5 is an end bar according to a second embodiment of the present invention.
FIG.

FIG. 6 is an explanatory diagram showing the digits and the ends of the insulation pieces in the second embodiment of the present invention.

FIG. 7 is an explanatory view showing an attached state of a lock pin in Embodiment 2 of the present invention.

FIG. 8 is an explanatory view of a pallet truck of a sintering machine.

FIG. 9 is an explanatory view showing a state in which a grate bar is provided on a sintering machine pallet.

FIG. 10 is an explanatory view showing a method of transferring a grate bar on a pallet of a sintering machine.

FIG. 11 is an explanatory view showing a conventional end bar locking mechanism.

FIG. 12 is an explanatory view showing a use state in a conventional sintering machine pallet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 End bar 2 Digits 3 Insulation piece 4 Fitting groove 4 'Lock pin fitting groove 5 Upper pawl 6 Lower pawl 7 Lock pin 8 Side wall

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akio Tada 1 Kanazawacho, Kakogawa City, Hyogo Prefecture Inside the Kobe Steel Works Kakogawa Works (72) Inventor Yukio Kakitsubo 1 Kanazawacho, Kakogawa City, Hyogo Prefecture Kami Co., Ltd. (72) Inventor Akihiro Nishiguchi 1 Kanazawacho, Kakogawa City, Hyogo Prefecture Kobe Steel Corporation Kakogawa Works

Claims (1)

[Claims] A lock pin is fitted into a lower end of an end bar through a through hole formed through a side wall of a pallet truck of a sintering machine, and a tip end of the lock pin is connected to one end of the end bar or to one end of the end bar. A grate bar lock mechanism on the side wall of a sintering machine pallet, wherein the end grate bar is locked by being fitted into lock pin fitting grooves formed at both ends.