PL212759B1 - Device for translocating cylindrical elements, especially concrete rings - Google Patents

Description

The subject of the invention is a device for transporting cylindrical elements, especially concrete rings, used during construction works, especially in the construction of sewage lines, road culverts, wells.

The weight of the coils - up to 3000 kg, as well as their dimensions are a problem when transporting and placing them at their destination. Usually this is done with the participation of several people using manual handles.

There are known devices that enable the mechanical handling of concrete coils using articulated elements clamping on the inner surface of the coils.

In the SchachtFIX solution according to the Schmolz, Schachtfix & Baugerate GmbH catalog (http://www.schacht-fix.de/schachtfix.htm) the clamping lugs are connected to the arms, which are articulated in the upper part to the frame. During lifting, a tubular member, which ends at the bottom, with inclined slide beds, on which the arms in the lower part rest, moves inside the frame. When lifting the device, the arms are swung to slide over the swiveling beds and the paws are clamped on the vertical side surfaces of the vertebrae.

Polish patent specification No. 187983 discloses a gripper for transporting and rotating elements with a cylindrical opening, in particular tapes coiled in coils, which is equipped with a fixed arm connected in the upper part with the body of the lifting weight balancing mechanism, and in the lower part with a movable arm. A clamping mechanism containing clamping jaws is attached to the movable arm by means of supporting columns. The body of the balancing mechanism, equipped with sliding guides, is attached to the fixed arm. The movable arm is pivotally connected with the fixed arm and can tilt in relation to the vertical plane by an angle from 0 to 90 °.

The essence of the invention is a device for transferring cylindrical elements, especially concrete rings, which has a central unit terminated at the top with a sling, with which the manipulator cooperates. In the lower part of the central assembly, the main arms are articulated, evenly spaced 120 ° on the circumference of the central assembly. The arms have supporting profiles extending to the desired length, with support jaws articulated at the ends, the position of the arms in relation to the horizontal plane of the device during operation is in the range of 10 ° to 13 °, which is obtained by appropriate selection of the length of the arms to the diameter lifting circle. The arms are connected by rods with a slider that can move axially along the central assembly. By lifting the slider by the manipulator, the clamp is released and the device is removed from the coil.

The device may have an additional set of shorter support arms mounted below and movably integrated with the main arms above, which extends the possibility of using the device with smaller diameter coils.

The device according to the invention makes it possible to transport concrete rings of various sizes.

The device according to the invention is shown in an exemplary embodiment in the drawing showing its diagram.

The device for transferring cylindrical elements, in particular concrete rings, consists of a central tubular unit (1) with a tee (1a) attached at the bottom with holes for fixing the arms. The central unit ends at the top with a sling (2), with which the manipulator (3) cooperates. In the lower part of the central assembly (1), upper main arms (4) are articulated to the tee holes (1a), and lower arms (5) below. The arms of the device consist of supporting profiles (6) slid to the desired length, fixed with pins (7). Supporting jaws (8) are articulated at the end of the bearing profiles. The upper (4) and lower (5) arms are connected by means of tie rods (9), thanks to which their parallelism is kept in every position. The upper arms are additionally connected with the pull rods (10) with the slider (11), enabling the clamp to be released and the device to be removed from the vertebrae. The concrete coil is transferred by moving the manipulator (3) in the sling slot (2) and lifting the device with a hoist. Lifting the device causes the arms (4) or (5) to extend, depending on the diameter of the transported coil, and blocking them inside the transferred coil. The vertebrae is lifted through the frictional coupling between the lifted vertebra and the clamping jaws (8). During operation, the arms are positioned at an angle of α = 10 ° + 13 ° from the horizontal, which ensures an appropriate pressure force on the coil walls and does not allow the permissible stresses of the coil material to be exceeded.

PL 212 759 B1

The coil is released in the same way, but the manipulator (3) should be attached to the slider catch (11) and moved with it in the sling slot (2), lifting the device. Moving the slider upwards raises the arms connected to it by the rods (10) and releases the clamp on the coil. At the end of the upper main arms there are catches (12) securing against too deep insertion of the upper arms jaws into the coil. The upper arms (4) play the same role for the jaws of the lower arms (5).

Claims (2)

1. A device for carrying cylindrical elements, especially concrete rings, equipped with movable arms, characterized in that it has a central unit (1) terminated at the bottom with a tee (1a) and at the top with a sling (2), with which the manipulator (3) cooperates in the lower part of the central unit (1), the arms (4 and 5) are articulated with supporting profiles (6) extended to the desired length, with support jaws (8) mounted at the ends, while the arms can be tilted at an angle of 10 ° to 13 ° from the horizontal, and the arms are connected with the rods (10) with the slider (11). 2. The device according to claim A device as claimed in claim 1, characterized in that it is additionally equipped with a set of shorter carrying arms (5) mounted below and integrated in movement with the main arms above.