SU1418257A1 - Load-engaging device - Google Patents

Abstract

The invention relates to a lifting and transport equipment, in particular to a lifting device. you. The purpose of the invention is to increase the reliability of work. The load gripping device contains a U-shaped traverse, at the ends of which the power cylinders 4 are rigidly fixed and the frames 3 are installed at the ends of the rods. Additional power cylinders I and 2 are rigidly fixed at the ends of the frame 3. 1 and 2 with pinless cavity force. cylinder 4, and the pressure sensor 8, and the pistons of all power cylinders 1,2,4 are equipped with springs 5. 4 Il.

Description

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The invention relates to a lifting machinery, namely to lifting devices.

The purpose of the image {) eteni - improving the reliability of the device.

FIG. 1 shows the hydraulic circuit of the ina load handling device of FIG. 2 - the position of the bodies of the load-gripping device before the seizure (of the load; in FIG. 3 - the same, with the side; clamping of the load; in FIG. 4 - the same, during the operation of all the gripping organs.

The load gripping device may contain two or more gripping bodies. FIG. shows a diagram of one | capture organ. .

The gripping organ consists of a lower additional ram 1 of the vertical clamp, an upper additional cylinder of 2 g of the vertical clamp, a frame 3 connecting the additional ram 1 and 2, and the ram 4 of the lateral horizontal clamp. Power cylinders 1,2 and 4 are equipped with return springs 5.

The working fluid is filled with both cavities of the additional power cylinder Ndra 1, the upper rod cavity of the additional power cylinder 2 and the right shaft of the hydraulic cylinder 4. Lower rod part of the cylinder of the additional power cylinder 1-, the top rod of the additional cylinder of the cylinder 2 and the right rod rod of the power cylinder 4 communicate with the upper rodless cavity of the power cylinder 1 by means of the hydraulic distributor 6, and the accumulator is also connected to the upper rodless cavity of the hydraulic cylinder 1 The torus 7 and the pressure sensor 8, are controlled by the distribution distributor 6. With the help of the throttles 9, the cavity of the additional power cylinder with the hydraulic distributor is connected.

The power cylinders 4 are rigidly fixed on the U-shaped traverse 10, which is provided with a suspension 11 for attachment to the manipulator. At the end of the stock of Kov additional power cylinders 1 and 2 are installed with a slope to the rod clamps 12 and 13.

When an additional power cylinder 1 appears on the rod, the upward force, its piston, overcoming the resistance of the return spring, moves upwards.

displaced fluid from the upper rodless cavity. This fluid through the windows of the hydraulic distributor 6 moves to the lower rod cavity of the additional power cylinder 1, the upper rod cavity of the additional power cylinder 2. and the right rodless cavity of the power cylinder 4.

Q Due to the presence of throttles 9, the amount of fluid entering the power cylinder 4 is greater than the amount of fluid entering the additional power cylinder 2, therefore the stem of the power cylinder 4 is shifted to the left until it encounters obstacles in its path. After that, the flow of fluid from the upper borehole cavity of the additional power cy-

The lindra 1 is guided only into the lower brush cavity of the additional power cylinder 1 and the upper rod cavity of the additional power cylinder 2, while the stem of the additional additional power cylinder 1 rises, and the shaft of the additional power cylinder 2 lowers 1

When the rod of the additional power cylinder 2 encounters an obstacle in its path, it stops and the pressure in the hydraulic system begins to grow. When the pressure reaches a predetermined value, the pressure sensor 8 switches off the hydraulic distributor 6, which covers all the lines connecting the cavities of the power cylinders. ,

Thus, the rods of the power cylinders are fixed - the rod of the additional power cylinder 1 cannot be displaced downwards and upwards, the rod of the additional power cylinder 2 cannot be displaced upwards, the rod of the power cylinder 4 does not

5 can be shifted to the right. The unscrewing of the rods is carried out by a control signal, which includes a valve 6. Possible leaks in the hydraulic system are compensated by the accumulator 7.

The load gripping device with the aid of the suspension 11 is attached to the manipulator. Manipul torus induces a load gripping device on load 14 and lowers the load gripping device. When the load gripping device touches its lower grippers 13 of the base (FIG. 2), a further displacement of the suspension device 11 of the manipulator downward will cause these MOPES and consequently.

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Claims (1)

Claim A load gripping device comprising a traverse with power cylinders rigidly fixed at its ends, a frame connected to the rods of the power cylinders, rigidly mounted symmetrically with respect to the vertical axis of symmetry perpendicular to the first pair of additional power cylinders, at the ends of the rods of which gripping elements are rigidly fixed, characterized in that, in order to increase the reliability of the work, the crosshead is made U-shaped, the power cylinders are horizontally and fixed at the ends of its vertical shelves, and The device is equipped with an additional pair of power cylinders, mounted on the frame coaxially with the corresponding cylinders of the first pair and above them and carrying additional gripping elements at the ends of the rods, a directional valve connecting the rod cavities of all additional power cylinders with a rodless cavity of the traverse power cylinders, a pressure sensor mounted on the line rodless cavity of the lower additional power cylinders and electrically connected to the valve, while the pistons of all power cylinders springs, and the gripping elements are mounted on rods of additional actuators to tilt towards the vertical symmetry axis of the traverse. FIG. 2 14 J 825 7 Figure 3