SU1495260A1 - Load-engaging device - Google Patents

Abstract

The invention relates to lifting devices and can be used for assembly operations. The aim of the invention is to increase the reliability of the device. The device is provided with an annular piston 8 located in the additional cylinder 9 with a cover 10, which encloses the cylinder 1 with a piston 2 and a rod 3. The ring piston 8 is vertically mounted and spring-loaded relative to the cover of the hydraulic cylinder 9. Flow of liquid from the piston 17 of the hydraulic cylinder 1 The piston cavity 18 of the annular piston 8 and the reverse is carried out through the hydraulic line 5 and is controlled by the throttle 6 by means of the control mechanism 7. The return of the device to the initial position This is forced by the action of springs 16 on the annular piston 8. 1 sludge.

Description

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The invention relates to lifting devices n can be used for assembly work.

The purpose of the invention is to increase reliability.

The drawing shows the lifting device, a General view.

The load gripping device comprises a hydraulic cylinder 1 with a piston 2 and a rod 3, a load gripping body 4 connected to the rod 3, a hydraulic line 5 with the throttle 6 installed in it and the mechanism 7 controlling the latter. The device is provided with an annular piston 8 enclosing the hydraulic cylinder 1,

Increase the load on the installation site. After the load is installed, the throttle 6 is blocked by the control mechanism 7, the lifting body 4 is released, and then the throttle 6 is opened again. Under the action of the springs 16, the annular piston 8 returns to its original position, pumping the working fluid through the non-return valve (not shown) into the cavity 17 under the piston 2 and lift it together with the brush 3 and the load gripping body 4. After returning to the initial position, the device is prepared for the seizure of the next cargo.

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To prevent distortions, the ring-mounted ones with the possibility of vertical 15 o the piston 8 during operation serve as displacement. These elements are placed by the guide finger 11. There may be several such fingers, which are evenly spaced around the circumference. In addition, these fingers prevent the deformation of the springs 16.

The device is filled with working fluid in an additional hydraulic cylinder 9 with a lid 10. The annular piston 8 is mounted with the possibility of vertical movement relative to the inner surface of the hydraulic cylinder 9. The device is also equipped with one guide pin 14, one end 12 of KOTOpoi o is fixed on the annular rim 8, and the other 13 is passed through the flap 10 of the hydraulic cylinder 9 and is fixed on it

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the bone is made after lifting the piston 2 and the annular piston 8 to the extreme upper position, while the annular piston 8 is raised to the upper position by means of a nut 14. Through holes 19

a nut 14, which, with its end face, can 25 0 fill the working fluid until it borrows from the plug 15 placed in the lid 10. To ensure that the annular piston 8 returns to its original position, it is spring-loaded relative to the cover 10 by springs 16. One of the springs 16 encloses the guide the finger 11. The hydraulic line 5 connects the above-piston cavity 17 of the hydraulic cylinder 1 and the subshift cavity 18 of the annular piston 8.

Load handling device operates as follows.

In the initial position, the piston 2 is in the extreme upper position, the annular hole 8 is in the extreme lower position, and the mechanism 7 controls the steam output of air bubbles, closes the holes 19 and 20 and returns the nut 14 to the initial position. The device is ready for operation.

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Claims (1)

Invention Formula A load gripping device containing a hydraulic cylinder with a piston and a rod, a load gripping body connected to the latter, a hydraulic line with a throttle installed in it and a control mechanism of the latter, characterized in that it is equipped with a hydraulic line 5 covering the main hydraulically covered 5, connecting dd cylinder with additional hydrocytes 17 and 18. After the cargo has moved, the lindre, the piston of which is made ring-mounted on the load gripping body 4, is at least In one direction, by the mechanism 7, with a control finger, one end of which is fixed, opening the throttle 6, connects the working on the annular piston, and the other end of the hydraulic cylinder 1 cavity 17 through the cover of the additional hydraulic cavity 18 of the annular piston 8. Under the action of the cylinder 45 and attached to it, while the piston 2 is lowered by the weight of the weight of the load, the target piston is spring-loaded relative to down with the required speed, forced the ra-caps of the additional hydraulic cylinder, and The barrel fluid of the hydraulic line 5, one of the springs, is placed from the envelope through the throttle 6 to flow into the cavity 18 with the direction of the finger, podporshnee under the annular piston 8, lift it and the cavities of the main and additional hydraulic while the springs 16. Change the cylinders communicated between the opening of the throttle 6, regulate the speed through a hydraulic line. Increase the load on the installation site. After the load is installed, the throttle 6 is blocked by the control mechanism 7, the lifting body 4 is released and then the throttle 6 is opened again. Under the action of the springs 16 the annular piston 8 returns to its original position, pumping the working fluid through the non-return valve {not shown) opened in the cavity 17 under the piston 2 and lift it together with the brush 3 and the load gripping body 4. After returning to the initial position, the device is prepared for the seizure of the next cargo. Filling the device working fluid20 the bone is made after lifting the piston 2 and the annular piston 8 to the extreme upper position, while the annular piston 8 is raised to the upper position by means of a nut 14. Through holes 19 air bubbles, close the holes 19 and 20 and return the nut 14 to its original position. The device is ready for operation. thirty Invention Formula