KR200218127Y1 - Equipment of clamping for controling width in tonns crain - Google Patents

Abstract

The present invention relates to a device for clamping a narrow and long rectangular material (broom, etc.) in a tongs crane work, and in particular, the shoe 21 and the cross arm 22 on both sides. In the barrel screen, in which the tension bar 24 and the sieve 29 are connected by the center beam 18, the hydraulic cylinder 13 is disposed above the center beam 18 in the width direction of the beam 18. Hydraulic cylinder support 13 protruding outwardly from the center beam 18, the laser 32 is built in the lower center, the flow base 6 is located in the lower portion of the cylinder 13 and moved up and down and the flow The base 6 and the upper surface of the floating base 6 have a brake 7, a motor 8, and a reducer 11 and a primary shaft 10 connecting the brake 7, the motor 8, and the reducer 11. ) Is installed, the bearing 12 and the drum (2) is installed on both sides of the lower secondary shaft (17) connected to the reducer (11), and the left side on one side The thread portion 4 is formed and the right side thread portion 5 is formed on the other side to provide a tongs cross-sectional width adjustment clamping device, characterized in that for moving the pair of cross-sectional adjustment weight (1) left and right.

In addition, the cross-arm 22 is elongated when the material 23 having a small cross-sectional width is stretched, and the height restriction of the charging material and devices accumulated on the ground is prevented from occurring by the cross-sectional width adjusting device.

Description

Tons cross section width adjustment clamping device {EQUIPMENT OF CLAMPING FOR CONTROLING WIDTH IN TONNS CRAIN}

The present invention relates to a device for clamping narrow and long rectangular materials (brooms, etc.) in a tongs crane work. The present invention relates to a device that enables easy clamping hoisting operation by easily identifying the center of gravity and installing a weight having the same width separately so as to uniformly control the cross section width.

In general, the BOOM transfer operation of the Tongs crane is basically lifting the crane in accordance with the center of gravity located at the center of the upper surface of the 4 brooms 23 as shown in FIGS. 1A and 1B. When the tension bar 24 is stretched, the cross arm 22 gradually narrows inward, and the shoe 21 positioned at the end of the cross arm 22 clamps the side of the broome 23 and is then hoisted and conveyed.

In the rolling process of steel, the brom that is transported by the pallet 28 as the material for making the final product is loaded two rows and six rows by the left and right of the pallet 28 based on four pieces, but one is loaded separately. In this case, when the clamping hoisting operation is performed, the tension bar 24 of the tongs is excessively extended to be positioned below the crane girder 27 so as to prevent the over-wounding, and thus the central limit switch 26 attached to the wire rope 30 is used. One touch transfer operation is not loaded on the sixth stage of the pallet 28, but one brom is loaded separately on the third stage, which is the maximum height.

Particularly, when a material having a small cross-section width is wound up, such as one or two broms 23, the brom 23 is pushed during the clamping operation, or a portion of the shoe 21 is clamped to the RBI with the RBI. There is a problem that the broom 23 is dislodged during transfer due to instability, and when the center of the tongs is not centered due to the small clamping cross section width, the wire rope 30 is moved by the left and right shake of the tongs. 29) there was a problem of derailment.

Moreover, the tension bar 24 inevitably stretches when hoisting and conveying a single brom, resulting in a very long overall length of the tongs, and the loading material accumulated in the yard during crane casting and turning work, and Accidents with various facilities on the ground are likely to occur.

The present invention has been devised to solve the above-mentioned conventional problems, and is continuously transported to a height as high as a general material by maintaining a constant cross-sectional width of the broom 23, which is a material having a small cross section, in a crane transport operation. It can come, and can keep constant the spot where the shoe 21 picks up the material during the clamping operation to prevent the fall accident of the material in advance. In addition, the driver can easily check the center of the cross-sectional width of the material, and the wire rope 30 may be opened due to the shake of the tongs left and right due to the difficulty of centering the cross-sectional width of the broom 23, which is a small cross-sectional width material. The purpose of this is to prevent the wire from being derailed from the eve 29.

In order to achieve the above object, the present invention, in the barrel of the shoe 21, the cross arm 22, the tension bar 24 and the sieve 29 is connected by the center beam 18 in the above, A hydraulic cylinder support 13 for protruding the hydraulic cylinder 13 protruding outward from the center beam 18 in the width direction of the beam 18 above the center beam 18, and a laser 32 in the lower center thereof. And a brake base 7, a motor 8, and a speed reducer 11 located on the upper surface of the flow base 6 and the flow base 6 and the flow base 6, which are located below the cylinder 13 and move upward and downward. The primary shaft 10 is connected to the brake 7, the motor 8, and the reducer 11. Both the bearing 12 and the drum are provided at both sides of the lower secondary shaft 17 connected to the reducer 11. (2) is installed and the left side threaded portion (4) is formed on one side and the right threaded portion (5) is formed on the other side to move the pair of cross-sectional adjustment weight (1) left and right It relates to the cross-sectional width adjustment tongseu clamping apparatus as ranging.

Figure 1a is a side view of a conventional

Figure 1b is a conventional tongs front view,

2 is a front view of the tongs of the present invention,

Figure 3 is a perspective view of the barrel of the present invention.

Explanation of symbols on the main parts of the drawings

1: cross-section adjustment weight 2: drum

3: wire rope 4: left-hand thread

5: right hand thread 6: flow base

7 brake 8 motor

9: coupling 10: 1 axle

11: reducer 12: bearing

13: hydraulic cylinder 14: upper limit sensor

15: lower limit sensor 16: hydraulic cylinder support

17: 2 axles 18: center beam

19: rotary cam switch 20: bearing support

21: shoe 22: cross arm

23: Broome 24: tension bar

25: Key 26: Central Limit

27: girder 28: pallet

29: sieve 30: wire rope

31: laser cover 32: laser

39: roller guide 40: motor base

Hereinafter, with reference to Figures 2 to 3 will be described an embodiment of the present invention in more detail.

In order to fix the laser cover 31 in which the laser 32 is inserted, the center of the brow 23 having a small width is easily inserted into the center of the center beam 18, and the laser inside the groove. The laser cover 31 surrounding the 32 is inserted and fixed in the groove by the screw at the end of the laser cover 31.

A support 16 for protruding and fixing the hydraulic cylinder 13 having the upper limit sensor 14 and the lower limit sensor 15, which are cylinder operating sections, to the center beam 18 of the tongs in the width direction of the beam 18 is attached. The left and right of the upper cylinder is fixed and the cylinder rod is fastened to the flow base 6 by the key 25.

A motor 8 having a brake 7 attached to the flow base 6 is provided on the motor base 40, and the coupling 9-1 and the reducer 11 are installed in order on the primary shaft 10. The second axle 17 is connected in parallel to the left and right of the gears at the bottom of the reducer 11.

The right side of the secondary shaft 17 connects the bearing 12 supporting the shaft and the coupling 9, and thereafter, the right side threaded portion 5 guides the drum 2 to the outer diameter of the secondary shaft 17. At the end of the screw 5, the bearing 12 supporting the secondary shaft 17 and the rotary cam switch 19 are attached side by side.

The left side of the reducer 11 of the secondary shaft 17 is the same as the right side of the reducer 11 except that the threaded portion is the left threaded portion 4 and the rotary chem switch 19 is not attached.

The cross-sectional width adjustment weight 1 has a rectangular parallelepiped shape and has a ring portion on its upper surface, which has a thread in its inner diameter and a drum (2) located on the left and right threads (4) (5) of the outer diameter of the secondary shaft (17). ) And the wire rope 3 wound around the drum 2 groove.

In addition, a series of devices for moving the cross-sectional adjustment weight 1 up, down, left, and right is provided symmetrically on both sides of the center beam 18 of the tongs.

Referring to the operation of the present invention configured as described above are as follows.

The clamping operation of the material 23 having a small cross-sectional width is performed by the driver placing the tongs on the material to be clamped, and then turning on the laser start switch in the cab, so that the light of the laser 32 embedded in the tongs center beam 18 is clamped. 23) will illuminate the top surface. When the operator sees this light and sets the tongs in the center of the material, and starts the motor 8, the rotational force of the motor is adjusted through the reducer 11 and transmitted to the secondary shaft 17, and this rotation is left of the reducer 11. The cross-section width adjustment weight (1) which surrounds the left screw (4) of and hangs on the wire rope (3) of the left drum (2) is driven forward to the left, and the right screw (5) on the right side of the reducer (11) When the cross-sectional width adjustment weight 1 hanging on the drum 2 is moved to the right and reaches the center of the barrel shoe 21, the brake 7 is operated by the operation of the rotary cam switch 19, and the motor 8 is Is stopped. Subsequently, the flow base 6 is lowered as the cylinder 15 of the hydraulic system moves forward, and at the same time, the cross-sectional width adjustment weight 1 is lowered by the position distance of the cylinder lower limit sensor 15, so that the left side of the material 23 to be clamped, Placed side by side.

When the driver who confirms the above operation raises the tongs, the cross arm 22 is lifted up and clamped at the same time while simultaneously clamping the cross-sectional width adjusting weights 1 located on the left and right sides of the raw material 23.

After transporting the material to the point desired by the driver, the tongs are lowered and seated on the ground, and then lifted to separate the material 23 and the cross-sectional width adjustment weight 1. When the driver operates in the reverse order, the sectional adjustment weight 1 is moved up to the position of the upper limit sensor 14 by the reverse of the hydraulic cylinder 15, and the motor 8 continues to reduce the speed of the secondary shaft 17 by the reverse torque. 11) When the drum (2) located on the outside of both ends of the left and right threads (4) and (5) of the left and right is moved to the center by the operating position of the rotary cam switch (19), the motor (8) is operated by the operation of the brake (7). Is stopped. The cross-sectional width adjustment weights 1-1 and 1-2 moved toward the speed reducer 11 are then seated in the correct positions moved to the cylinder upper limit sensor 14 by the reverse of the hydraulic cylinder 13.

Therefore, according to the present invention, the center of the cross-sectional width of the material to be clamped by the laser 32 light embedded in the center of the center beam 25 of the tongs clamping the material and transported to the desired position by the operator at a distance The driver can check, and the material with a small cross-sectional width due to the cross-sectional width adjusting device can be loaded at the same height as the normal material with the cross-sectional width, so that more materials can be transferred than before.

In addition, the clamping part of the material 23 having a small cross-sectional width hits the upper end of the material so that the material falls and adjusts the width of the cross section to clamp the damage of the material 23 and various facilities under the material, as in general materials. RBI in the middle prevents material from falling.

In addition, the cross-arm 22 is elongated when the material 23 having a small cross-sectional width is stretched, and the height restriction of the charging material and devices accumulated on the ground is prevented from occurring by the cross-sectional width adjusting device.

Claims (3)

In the tongs crane in which the shoes 21, the cross arms 22, the tension bars 24, and the sheaves 29 on both sides are connected by the center beam 18, A hydraulic cylinder support 13 for protruding the hydraulic cylinder 13 protruding outward from the center beam 18 in the width direction of the beam 18 on the center beam 18, and a laser 32 in the lower center. Become, A brake 7, a motor 8, a reducer 11, and a flow base 6 positioned above and below the cylinder 13 and on the flow base 6 and an upper surface of the flow base 6 are provided. The primary shaft 10 is connected to the brake (7), the motor (8) and the reducer (11), The bearing 12 and the drum 2 are installed on both sides of the lower secondary shaft 17 connected to the speed reducer 11, and the left side thread portion 4 is formed at one side, and the right side thread portion 5 is formed at the other side. Toxic cross-section width adjustment clamping device characterized in that the cross-section adjustment weight (1) to move left and right. The method of claim 1, The outer circumferential edge of each hydraulic cylinder 13 is the upper end sensor 14 and the lower limit sensor 15, characterized in that the tongs cross section width adjustment clamping device. The method of claim 1, A tongs cross section width adjustment clamping device, characterized in that the rotary chem switch 19 is provided at one end of the second axle.