SU703490A1 - Pipe-laying crane - Google Patents

Description

(54) CRANE PIPE

FIELD: lifting transport machinery.

A well-known crane-paver contains a lateral boom consisting of a lower one connected to it by means of a lockable hinge of the upper section, a load-lifting mechanism and a hydraulic cylinder that changes the reach of the boom, one end of which is connected to the frame of the crane-pipelayer.

The purpose of the invention is to reduce the laboriousness of assembly and dismantling works on the transfer of the upper section of the boom from the working position to the transport position and back

To do this, in the proposed device, the other end of the hydro-cylinder is attached to the upper section of the drill, with the axis of the hydro-linearizer being displaced relative to the axis of the hinged hinge, and the lower section of the boom is provided with a locking device

FIG. Figure 1 shows the proposed pipe-operated crane, 1Pchik, a general VIP with a private jib; on i «r, 2 vad A FIG. one; FIG. 3 is a view B of FIG. 1. The pipe-laying crane includes a base tractor 1, on whose choke carriage an arrow is hinged, consisting of the upper section 2 and the lower hinge 3 connected to it by the lower 4. The hinge 3 is bolted 5. The hydraulic cylinder 6 is attached to the frame 7 at one end crane pipe, and the other - to the bracket 8 of the upper section 2. On the transverse beam 9 of the lower section 4 pivotally mounted earring

Claims (1)

"I 10. Earring 10, thrown over the protruding spike 11 of the frame 7, locks the lower section 4 in the extreme side position. On the beam 9 from the outer side by means of the hinge 12 is installed a reblocking support 13. By turning relative to the hinge 12, the support 13 can be driven by the beam 9 so that the support 13 does not interfere with the crane laying and handling operations. At the free end of the top. 3 sections 2 is installed a polyspast, condition; ShAZhZ movable holder 14, hook suspension 15 and cargo rope 16, wound on the winch drum 17. Hia tractor 1 has a crown TV for popping the upper section 2 in the transport position and the end switch 19. Transfer the upper section 2 the situation in transport is in the following order. Using the hydraulic cylinder 6 CTtJehy, put it in a vertical position and citbnopflt it in the atom position by throwing the earring 10 onto the spike 11. They throw the support 13 and set the hook suspension 15 on it, removing the slack of the rope 16. Unscrewing the bolts 5. Extending the hydraulic cylinder 6 produces turning section 2 relative to the hinge 3 to the o-switches of hydraulic cylinder 6 with the end switch 19. The upper section 2 with aTorvf rests on the bracket 18. Excessive slack of the rope 16 is selected with a winch 17. - ;;: To move the boom into the working position, follow the hydrocylin 804. 6 put the section; 2 into the vertical position, wrap the bolts 5, remove the hook suspension 15 from the support 13, load the support 13 behind the beam 9 and remove the shackle 10 from the spike 11. Invention formula Crane laying machine containing a lateral boom consisting from the lower section and the upper section connected to it by means of a lockable hinge, a lifting mechanism and a hydraulic cylinder for changing the height of the boom, one end of which is connected to the crane-pipe frame - /. By the fact that, in order to reduce labor-intensive installation and assembly work on transferring the upper section of the boom from the working side, the other end of the hydraulic unit is attached to the upper boom side, and the axis of the hydraulic cylinder is offset from the axis of the lockable hinge fitted with locking device.