Steel material turning device

Abstract

To provide a steel turning device that can safely turn a work made of steel such as H steel from 0 degrees to 180 degrees.SOLUTION: A steel turning device has a clamp 8 that engages one end of a flange part 7 of a workpiece 6 and a movable clamp 9 that engages the other end at the lower part of a lifting tool body 5. The movable clamp engages and disengages from the flange part by rotating a crank lever 19. A side latch part 11 located on the clamp side and a side latch part 11 located on the movable clamp side are provided on both sides of a central latch part 10 provided at the center of the upper part of the lifting tool body. The latch part is communicated by a slide groove 12, and a lifting shaft 13 of a suspension link 1 connected to a crane is inserted into the slide groove. When the suspension link is moved by the crane, the lifting shaft 13 can be engaged with the selected side latch part, and the lifting tool body 5 can be lifted up in an inclined state.SELECTED DRAWING: Figure 1

Claims

1. It has a lifting device body that can be lifted by the lifting shaft of a lifting link that is moved by a crane, The lifting device body is, A clamp formed on one side of the lower part to engage with one end of the flange portion of the H-beam, A movable clamp is provided on the other side of the lower part to engage with the other end of the flange portion of the H-beam, It is equipped with a crank lever that rotates the movable clamp to engage and disengage the movable clamp from the flange portion, A central hooking section is provided at the top center of the main body of the above-mentioned suspension device. On both sides of the central fastening section, there are lateral fastening sections located on the clamp side and lateral fastening sections located on the movable clamp side. The lateral fastening portions are connected by sliding grooves. The lifting shaft of the suspension link is slidably inserted into the slide groove, A steel material turning device that allows the lifting shaft to be engaged with the selected lateral fastening portion by moving the lifting link with a crane, thereby lifting the lifting device body into an inclined state, The crank lever comprises a handle extending in a straight line and a lever that bends at a bent portion forming an end on one side of the handle that extends toward the suspension device body, intersecting the direction in which the handle extends and extending toward the other side of the handle, wherein the bent portion is pivotally attached to the suspension device body at a position below the central hooking portion. The movable clamp has a clamping portion at one end that engages with the flange portion, and the other end is fixed to a rotating shaft that is pivotally attached to the lifting device body, and rotates in conjunction with the rotation of the rotating shaft relative to the lifting device body to engage with and disengage from the flange portion. The rotating shaft is located on the side of the lifting device body where the movable clamp is provided, and is positioned below the position where the bent portion of the crank lever is pivotally attached to the lifting device body in a rotatable manner. One end of a clamp arm, which rotates in conjunction with the rotation of the rotating shaft relative to the lifting device body, is fixed to the aforementioned rotating shaft. The other end of the clamp arm and the tip of the lever are connected via a transmission link, and this connection is The rotational movement of the handle of the crank lever relative to the lifting device body in a direction intersecting the direction in which the lifting link extends, centered on the position of the bent portion, causes the rotation axis to rotate relative to the lifting device body, and the clamp portion engages with and disengages from the flange portion, and furthermore, When the clamp portion is engaged with the flange portion, the transmission link and the lever of the crank lever are aligned in a straight line with respect to the position where the bent portion of the crank lever is pivotally attached to the lifting device body. This connection prevents the rotation shaft from rotating in the direction that would cause the clamp portion to detach from the flange portion, even if a rotational force is applied to the rotation shaft in the direction that would cause the clamp portion to detach from the flange portion. A steel material turning device characterized by the following features.

2. The steel material turning device according to claim 1, wherein the central fastening portion is located above the lateral fastening portions, and the slide groove is inclined in a mountain shape with the central fastening portion as the apex.

3. A steel material turning device according to claim 1, wherein a connecting shaft is provided in the center of the lifting device body, and a lifting link having a lifting shaft extends to the center of the lifting device body, and the extended portion is provided with a long groove that loosely fits onto the connecting shaft.

4. A hanger that can be lifted by a lifting link connected to a crane, The hanging device body is located below the hanger and is made of a single piece having a predetermined distance between one side and the other side facing it. The aforementioned suspension device body is, A clamp is provided at the lower part of one side, which engages with one end of the flange portion of the H-beam, A movable clamp is provided on the lower part of the other side, which engages with the other end of the flange portion, The device is equipped with a crank lever that rotates the movable clamp relative to the lower part of the lifting device body so that the movable clamp engages with and disengages from the flange portion. In the lifting device body, the upper part of the one side on which the clamp is provided and the upper part of the other side on which the movable clamp is provided are each provided with a lateral fastening portion. The hanger is provided with a rotational drive means, A hanging transmission belt is stretched over the rotational drive mechanism, One end and the other end of the hanging transmission band, which is stretched across the rotational drive means, are connected to the lateral fastening portion, respectively. A steel material turning device that allows the tip of the hanging transmission belt to be extended or retracted by the driving of the rotational driving means, thereby lifting the lifting device body into an inclined state, The crank lever comprises a handle extending in a straight line and a lever that bends at a bent portion forming an end on one side of the handle that extends toward the suspension device body, intersecting the direction in which the handle extends and extending toward the other side of the handle, wherein the bent portion is pivotally attached to the suspension device body at a position below the central hooking portion. The movable clamp has a clamping portion at one end that engages with the flange portion, and the other end is fixed to a rotating shaft that is pivotally attached to the lifting device body, and rotates in conjunction with the rotation of the rotating shaft relative to the lifting device body to engage with and disengage from the flange portion. The rotating shaft is located on the side of the lifting device body where the movable clamp is provided, and is positioned below the position where the bent portion of the crank lever is pivotally attached to the lifting device body in a rotatable manner. One end of a clamp arm, which rotates in conjunction with the rotation of the rotating shaft relative to the lifting device body, is fixed to the aforementioned rotating shaft. The other end of the clamp arm and the tip of the lever are connected via a transmission link, and this connection is The rotational movement of the handle of the crank lever relative to the lifting device body in a direction intersecting the direction in which the lifting link extends, centered on the position of the bent portion, causes the rotation axis to rotate relative to the lifting device body, and the clamp portion engages with and disengages from the flange portion, and furthermore, When the clamp portion is engaged with the flange portion, the transmission link and the lever of the crank lever are aligned in a straight line with respect to the position where the bent portion of the crank lever is pivotally attached to the lifting device body. This connection prevents the rotation shaft from rotating in the direction that would cause the clamp portion to detach from the flange portion, even if a rotational force is applied to the rotation shaft in the direction that would cause the clamp portion to detach from the flange portion. A steel material turning device characterized by the following features.

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