JPH0559194U - Brick carrier for brick loader - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a brick transfer device for a brick laying machine, which has a high work efficiency and is capable of quickly and steplessly loading bricks from a furnace bottom to an arbitrary height position. [Structure] A plurality of telescope type cylinders 4 are erected on a lower fixed housing 3 and
An upper movable housing 2 provided with a unloading means such as a brick unloading conveyor 9 is arranged so that it can be pushed up. A brick conveying means 5 composed of a loop-shaped chain 10 having a conveying bucket is mounted between the upper and lower housings 2 and 3, and the loop-shaped chain 10 is interlocked with the telescopic cylinder 4 for expanding and contracting. A chain feeding means 6 is provided for varying the length of the loop-shaped chain between the upper and lower housings 2 and 3 by performing chain feeding.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a brick conveying device for a brick stacker that carries bricks from the bottom of a metal refining furnace such as a converter.

[0002]

[Prior Art]

 First, a conventional brick laying machine of this type will be described with reference to the one described in Japanese Patent Publication No. 48-6003 shown in FIG. 8 and the one described in Japanese Patent Publication No. 53-39241 shown in FIG.

In FIG. 8, reference numeral 61 is a converter, and 62 is a traveling frame located directly below a furnace bottom opening 63 of the converter. The guide frames 64, 65 and 66 supported by the traveling frame 62 respectively support the traveling frames. The telescopic lifting rods 67, 68, 69 are guided, and the working platform 70 is lifted to a desired height in the converter 61 by the telescopic lifting rods 67, 68, 69. A basket 71 for storing bricks can be moved between the work platform 70 and the traveling path 74 by being suspended from a pull rope 73 of a jib crane 72 fixed to the work platform 70. According to this brick laying device, the work platform 70 on which a plurality of brick laying workers are riding is lifted to a predetermined height in the converter 61 by the telescopic type lifting rods 67, 68, 69, and then the traveling path is set. The bricks for lining in the converter which have been transported 74 are carried into the basket 71, and the basket 71 is lifted up to the work platform 70 by the jib crane 72. They are lined by stacking them on the spot (hereinafter referred to as "prior art I").

In FIG. 9, reference numeral 81 denotes a metallic shell (corresponding to a converter furnace shell), and a hoist 83 is attached to a beam 82 above the shell. A cylindrical tower 84 and a box 85 can be moved up and down by the hoist 83. A turntable 86 is disposed at the upper end of the tower 84, and the turntable 86 supports a foldable platform 87 on which a brick-laying worker is placed. According to this brick stacking device, the bricks transported by the forklift truck 88 are transferred to the box 85, and then the tower 84 and the box 85 are raised to a predetermined position in the shell 81 by using the hoist 83, Further, only the box 85 is pulled up to the position of the rotary table 86 by the hoist 83, and the brick laying worker on the platform 87 piles up the bricks in the box 85 at a predetermined position in the shell 81 for lining ( Hereinafter referred to as "Prior Art II").

[0005]

[Problems to be solved by the device]

 By the way, between the converter and the floor surface, it is necessary to provide a predetermined space for moving the ladle car etc. and for installing the brick stacking device, etc. Are often located 7 to 8 meters or more above the floor. Furthermore, the furnace height of the converter itself is 10 m or more in most cases. Therefore, as in the case of the conventional technique I, it is necessary to hang the basket 71 on which the brick block is placed by the jib crane 72 up to the work platform 70 each time, so that the handling is troublesome and the work is not swift. It is necessary for an operator to carry bricks weighing about 30 kg from the brick block that has been transported onto the platform 70 to the wall of the furnace one by one. It is forced to reduce work efficiency.

In the case of the conventional technique II, there are the following problems in addition to the problem of the conventional technique I that the efficiency of the brick laying work (particularly the brick conveying work) is low. That is, a space for installing a hoist or other lifting device is required at the top of the furnace, which necessitates a large building, which increases equipment costs. In addition, an exhaust gas facility such as a hood for discharging the gas generated as a result of the metallurgical reaction in the converter is indispensable on the upper part of the converter. The equipment structure becomes complicated and the maintainability deteriorates.

An object of the present invention is to provide a brick transfer device for a brick laying machine, which is capable of rapidly and steplessly transferring bricks one by one from a furnace bottom to an arbitrary height position and having high work efficiency. Here it is.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the brick transfer device for a brick laying machine of the present invention comprises a plurality of telescope type cylinders standing upright on a lower fixing member, and an upper movable member capable of being pushed up to the telescope type cylinders. A brick conveying means composed of a loop-shaped chain equipped with a carrier conveyer between the fixed member and the upper movable member is mounted, and the brick conveying means is followed by the expansion and contraction operation of the telescope type cylinder. It is characterized in that a chain feed means for changing the length of the loop-shaped chain along the cylinder is attached.

[0009]

[Action]

 The telescope type cylinder is extended to insert the upper movable member into the furnace from the bottom of the furnace, set it at a predetermined position, and then place the brick on the brick carrier attached to the looped chain to move the upper movable member to the upper position. The bricks are transferred to the furnace wall surface by a brick removal means such as a conveyor-less handling robot.

When raising the upper movable member, it is necessary to increase the length of the chain formed in the loop in the vertical direction along the cylinder, following the extension of the telescope type cylinder. However, the chain feed mechanism attached to the loop-shaped chain automatically feeds the chain, and the length of the loop-shaped chain between the lower fixed member and the upper movable member along the cylinder is automatically adjusted. Become longer and follow.

[0011] Thus, the bricks can be quickly and steplessly conveyed to a predetermined position in the height direction of the furnace by steplessly moving the upper movable member to an arbitrary height, and the bricks can be conveyed by a brick conveyor or a handling robot. Brick can be mechanically transferred or stacked one by one to the furnace wall surface.

[0012]

[Example 1]

 FIG. 1 is a side view of an entire brick laying machine equipped with a brick conveying device according to the first embodiment of the present invention, and FIG. 2 shows a state in which brick laying work is being performed in a furnace using this brick laying machine. It is a side view shown. As shown in FIG. 1, the brick laying machine M includes an upper movable housing (also referred to as an upper movable member) 2, a lower fixed housing (also referred to as a lower fixed member) 3, and an upper movable housing 2 which are placed on a traveling carriage 1. A telescope type cylinder 4 for vertically moving up and down, a brick conveying means 5 by a loop-shaped chain, a chain feeding means 6 capable of laterally moving on the traveling carriage 1 attached to this, a brick receiving means 7, It is mainly composed of a unloading arm such as a brick unloading arm 8 and a brick unloading conveyor 9 arranged in the upper movable housing 2.

The brick intake means 7 is provided in the lower fixed housing 3, and is constructed so as to be able to move up and down via a link mechanism by a fluid pressure cylinder 7a. A pretreatment device for cutting out brick blocks one by one (not shown) is connected to the brick collecting stage 7.

A plurality of telescopic cylinders 4 are erected on the base of the lower fixed housing 3, and the rod ends of the telescopic cylinders 4 are connected to the upper movable housing 2 so that they can be pushed up. It is freely configured.

The brick conveying means 5 is mounted between the upper and lower housings 2 and 3, and is constituted by a loop-shaped chain 10 (hereinafter, also referred to as “loop-shaped chain”), and moreover, the loop-shaped chain 10 A chain feed means 6 is attached to this.

That is, the chain 10 that meshes with the chain drive motor 11 arranged in the lower fixed housing 3 has upper and lower fixed sprockets 12 and 13 (one mounted on the lower fixed housing and the other mounted on the upper movable housing), as well as the loops. In order to form a chain, a chain 10 is looped between a guide sprocket 14 arranged in four stages in the lower fixed housing 2 and a moving sprocket 15 arranged in three stages on a moving body 6A constituting the chain feeding means 6. It has been bridged.

In the chain feeding means 6, the rotary motor 16 rotationally drives the ball screw 17 in conjunction with the expansion and contraction operation of the telescope type cylinder 4, and the mover 6 a screwed to the ball screw 17 is laterally moved by a screw action. By moving, the entire moving body 6A including the guide sprocket 15 is laterally moved. Therefore, the chain feeding means 6 automatically feeds the loop-shaped chain 10 in association with the expansion and contraction of the telescope type cylinder 4, and the loop-shaped chain in the vertical portion between the upper and lower housings 2 and 3. The length of is automatically adapted to follow.

In addition, the buckets (brick carrier) 18 for transferring bricks are suspended at regular intervals on the loop-shaped chain 10 (see FIG. 2), and the bricks are taken in one by one from the brick intake means 7. The bricks are received and transported to the upper movable housing 2 by moving the chain.

The upper movable housing 2 includes a fixed table 2A and a swivel housing 2B that is swivelable on the fixed table 2A. The swivel housing 2B is configured to swivel on the fixed table 2A via a swivel bearing 2C. Further, on the fixed table 2A, there are provided a fixed sprocket 12 and a receiving table 21 arranged in the vicinity of the fixed sprocket 12 by a brick holding clamp 19 and a fluid pressure cylinder 20 so that the receiving table 21 can be erected. Furthermore, a brick carry-out arm 8 is pivotally mounted on the ceiling of the swivel housing 2B. Then, a foldable brick unloading conveyor 9 is mounted on the swivel housing 2B. The brick unloading conveyor 9 swivels along with the swivel housing 2B, and therefore mechanically carries out bricks in the circumferential direction of the furnace without the help of an operator.

FIG. 2 shows a state in which the telescope type cylinder 4 is extended and the upper movable housing 2 is positioned in the furnace in order to perform brick laying using the brick laying machine M.

In the brick stacking, the upper movable housing 2 is inserted into the furnace from the bottom opening of the converter 22, and the stacking is sequentially performed from the lower part of the furnace to the upper part. Therefore, the telescope type cylinder 4 is gradually added. To grow. At this time, as the upper movable housing 2 rises, the length of the vertical portion of the loop-shaped chain 10 (the chain between the upper and lower housings 2 and 3) also needs to be expanded accordingly. This is performed by moving the moving body 6A in the lateral direction by the chain feeding means 6. That is, the rotation motor 16 rotationally drives the ball screw 17 in conjunction with the extension of the telescope type cylinder 4, and the moving element 6a screwed to the ball screw 17 laterally moves by a screw action to guide the guide sprocket 15 in a row. When the installed moving body 6A moves laterally, the chain length of this portion is shortened, and the chain length of the vertical portion is lengthened accordingly, so that it is possible to follow the extension of the telescope type cylinder 4 in the end. .. When the upper movable housing 2 is most raised, that is, when the telescopic cylinder 4 is fully extended, the moving body 6A can reach the position of the virtual line on the right side.

To explain the procedure of brick transfer, the telescope type cylinder 4 is extended by a predetermined amount to set the upper movable housing 2 at a predetermined position in the furnace, and then cut out one by one from the pretreatment device. The brick R supplied by the above is received by the brick intake means 7 in the horizontal position, and the fluid pressure cylinder 7a is extended to erect the brick intake means 7. At this time, the chain drive motor 11 is already in the operating state, and the bucket for brick transfer (brick transfer table) 18 is also moving on the loop-shaped chain 10.

The upright brick R is received by the bucket 18, and the brick 18 is conveyed upward by raising the bucket 18 as the chain 10 rises. When the bucket 18 reaches the fixed table 2A of the upper movable housing 2, the brick R is clamped by the brick gripping clamp 19, and in conjunction with this, the cylinder 20 operates to move the table 21 from the standing state to the lying state. become. The brick on the table 21 is gripped by the suction pad at the tip of the brick unloading arm 8 and placed on the predetermined brick unloading conveyor 9.

The bricks are automatically fed to the furnace wall by riding on the carry-out conveyor 9 and are piled here. The brick unloading conveyor 9 is swung by a predetermined amount by swiveling the swivel housing 2B, and bricks are piled in the circumferential direction in the furnace. Next, the telescope type cylinder 4 is gradually extended and the next layer of bricks is stacked. By repeating such work, bricks are piled in the entire furnace.

[Second Embodiment] FIG. 3 shows a brick conveying device and its peripheral devices according to a second embodiment of the present invention. FIG. 4 is a perspective view of the brick conveying means, and FIGS. 5 and 6 are plan views of a movable deck and a swing deck, respectively. As shown in these drawings, the pretreatment device 23 is installed on the traveling carriage 31. Although not shown, a brick pallet is placed on the pretreatment device 23, and is sequentially sent upward by the lifter, where the bricks are individually supplied by the pusher 24 to the brick conveying means 35 via the conveyor 25. It is like this. The traveling carriage 31 forms a lower fixed deck (also referred to as a lower fixed member), and a plurality of telescope type cylinders 34 are erected on this fixed deck, and the tip of the rod is located at the tip of the rod. A circular upper movable deck (also referred to as an upper movable member) 32 is vertically movably connected. On the movable deck 32, there is provided a swing deck 33 configured to be rotatable, and a turntable 40 having a pusher 40b is provided between the movable deck 32 and the swing deck 33 so as to be vertically reciprocable by a cylinder 40a. ing. A pair of runout conveyors 39 are provided on the swivel deck 33 so as to face each other, and a mounting seat 42 for a handling robot 41 is provided on the swivel deck 33 beside each runout conveyor 39. As shown in FIG. 7, the handling robot 41 has a multi-joint arm 43, and a suction pad 43a is attached to the wrist part thereof. Therefore, the bricks conveyed to the runout conveyor 39 can be grasped by the suction pad 43a and brought to a predetermined furnace wall position for brick stacking. Note that the handling robot 41 can be installed on the mounting seat 42 in advance if the height to the bottom of the furnace is sufficient, but since there is usually no space for it, as shown in FIG. It is done by a crane installed above. In FIG. 7, 44 is a girder, 45 is a hoist movable on the girder 44, 46 is a vacuum pump for suction pads, and 47 is a control panel for a handling robot.

The brick conveying means 35 of this embodiment is composed of a slat conveyor (FIG. 4). The slat conveyor 35 extends in the longitudinal direction of the traveling carriage 31 corresponding to the lower fixed member, and extends along the telescope type cylinder 34 to the movable deck 32 which is an upper movable member in an L shape. That is, a chain 35a of two lines and two series is looped from the lower sprocket 35c at the rear position of the traveling carriage 31 to the upper sprocket 35d at the upper movable deck 32 position, and is attached to the loop chain 35a. A moving slat (brick carrier) 35b is provided. The upper sprocket 35d is supported by a cross girder 32a installed on an annular movable deck 32. On the other hand, a chain feed means 36 is arranged on the lower sprocket 35c. The chain feed means 36 is provided with a lead screw 37 which is rotated by a drive motor 38 along the chain, and a moving body 36A provided on the shaft of the lower sprocket 35c is screwed to the lead screw 37. ing. The drive motor 38 is operated in conjunction with the extension operation of the telescope type cylinder 34 and the lead screw 37 is rotated so that the moving body 36A can be moved.

Therefore, the brick R transferred on the slat 35b, which is a brick carrier, can be automatically delivered in the horizontal direction at the chain folding point at the top, and transferred on the turntable 40 with a pusher. It is like this. The pusher 40b is formed in an L-shape and can be moved horizontally by a chain drive 40c. By the movement, the brick R on the turntable 40 is pushed out to the runout conveyor 39 to be transferred. It is like this.

The bricks cut out from the pretreatment device 23 may be supplied to the horizontal transportation position of the slat conveyor 35, which is a brick transportation means. This is because the slat conveyor 35 is originally a conveyor that can shift from horizontal transportation to vertical transportation while maintaining the same state. Here, the operation of the apparatus in the second embodiment will be described. After the traveling carriage 31 is brought to a predetermined position as shown in FIG. 3, the telescope type cylinder 34 is extended to insert the upper movable member 32 from the bottom opening of the furnace to raise it to a predetermined position and set it. At this time, as shown in FIG. 4, the upper sprockets 35d of the slat conveyor 35 attached to the upper movable member 32 also rise. In conjunction with this, the moving body 36A is moved by the operation of the drive motor 38, the lower sprocket 35c is moved in the direction of the arrow in FIG. 4, and the length of the vertical portion of the looped chain 35a along the cylinder 34 (FIG. 3) is increased. become longer. That is, the upper sprocket 35d and the lower sprocket 35c ascend or move from the A position to the B position in FIG. 4, respectively. At the same time, the loop-shaped chain 35a is operating, and the slats 35b are circularly moved counterclockwise in the posture shown in FIG. On the other hand, the bricks cut out one by one from the pretreatment device 23 are transferred onto the slats 35b of the slat conveyor 35 via the conveyor 25. When the slats 35b come to predetermined positions one after another, in synchronization with this, automatic control is performed so that bricks are successively fed from the conveyor 25 onto the slats 35b. The brick mounted on the slat 35b can be moved to the position of the upper sprocket 35d (chain folding position) with the movement of the looped chain 35a, and the brick R is automatically transferred onto the turntable 40 when the slat 35b is folded back. .. The turntable 40 that has received the brick R is pushed up by the cylinder 40a to the level of the upper runout conveyor 39, and is rotated there until it coincides with the line of the runout conveyor 39. Then, the pusher 40b is pushed to the imaginary line position as shown in FIG. 6, whereby the brick R is transferred onto the runout conveyor 39. The bricks R on the runout conveyor 39 are gripped by the handling robot 41 seated on the swivel deck 33, brought to a predetermined position on the furnace wall, and stacked there.

[0029]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects. By forming a chain for brick transportation in a loop shape and operating the chain feeding mechanism in conjunction with the telescopic movement of the telescope type cylinder, it follows the rise of the upper movable member and the length of the loop chain as the brick transportation means. The bricks can be conveyed quickly and the bricks can be conveyed and stacked at a stepless position in the furnace.

In the configuration of the first embodiment, the bricks are loaded from the bottom of the furnace without the need for an accessory for stacking bricks on the furnace. Therefore, an essential accessory such as an exhaust gas hood is installed on the furnace. It can be arranged efficiently and the overall equipment configuration can be made compact.

The machine can be operated by the brick unloading means provided in the upper movable housing as in the first embodiment or by the handling robot installed on the swiveling deck as in the second embodiment without the help of the operator. Brick can be transferred or stacked to the furnace wall.

[Brief description of drawings]

FIG. 1 is a side view of the entire apparatus when a brick stacker equipped with a brick conveying means according to a first embodiment of the present invention is provided on a traveling carriage.

FIG. 2 is a side view showing a state where a brick laying operation is performed in a furnace by using a brick laying machine provided with the brick conveying means.

FIG. 3 is a side view of a brick conveying device and its peripheral devices according to a second embodiment of the present invention.

FIG. 4 is a perspective view of the brick conveying means.

FIG. 5 is a plan view of the upper movable deck.

FIG. 6 is a plan view of the lower fixed deck of FIG.

FIG. 7 is a diagram showing how a handling robot is installed by a crane.

FIG. 8 is a side view of a conventional brick stacking device.

FIG. 9 is a side view of another conventional brick stacking device.

[Explanation of symbols]

M ... Brick loader 1, 31 ... Traveling carriage (lower fixed member) 2, 32 ... Upper movable member (upper movable housing or upper movable deck) 2A ... Fixed table 2B ... Swiveling housing 3 ... Lower fixed housing 4, 34 ... Tele Scope type cylinder 5, 35 ... Brick carrier 6, 36 ... Chain feeder 10, 35a ... Chain (loop-shaped chain)

Claims (1)

[Scope of utility model registration request] 1. A plurality of telescope type cylinders are erected on a lower fixed member, an upper movable member is provided on the telescopic type cylinder so as to be able to be pushed up, and a brick carrier is provided between the lower fixed member and the upper movable member. Chain feeding means for mounting the brick conveying means constituted by the provided loop-shaped chain, and varying the length of the loop-shaped chain along the cylinder by following the expansion and contraction operation of the telescopic cylinder on the brick conveying means. Brick carrier for brick laying machine, characterized by being attached.