SU412124A1 - - Google Patents

Description

one

The invention relates to a load lifting means and is intended for use in crane structures.

Cantilever cranes are known, the contents of a rigidly mounted on the base of the koloyna, carrying a console in a horizontal H.IJOCKOCTH console, CONSTANT from the luapH1FNO junction of the connected links and supplied with a load gripper with the mechanism of its vertical displaced, the cable assembly system and the drive cable.

The aim of the assembly is to increase the speed of the unloaded cargo without load and increase the service life of the carrier.

This is achieved by the fact that the vertical unmounted mechanism is equipped with a cam body, one foot of which is rigidly connected to the load drum of the cable block system, and the second computer sleeve is fitted to the output shaft of the drive with the possibility of radial nondisplacement, a spring and an arm with an electromagnet and solenoid assembly connected to the socket with a socket and with the possibility of radial non-displacement, a spring and an arm with an electromagnet. relocation without load.

To ensure the operation of the clutch cams, the cams are shaped so that, at the least load suspended, the force required to switch off the clutch is greater than the elec- tron electrically applied power.

half coupling

Pa figs. 1 shows the proposed crane; on phpg. 2 is a cut A-A in FIG. one.

The crane contains a column 7, console 2, hinged on the voice, i, including h1, th link 4 and 5, HiapHHjiiio interconnected; the mechanism 6 of the hinged movement, fixed on link 5 and containing prnvod 7 n cable-blocking system 8, the last link of which is a load gripper 9.

The load drum 10 with nominal springs // is the spring set for balancing the load gripper 9 and is rigidly connected with the cam loom coupling / 2. On the downstream output shaft /.:J of the actuator 7, the cam half coupling was seated, which was pressed to the coupling half 12 by the spring / 5, and connected with the power electromagnet 77 by the lever 16. The cams of the coupling half 12 and M were assembled so that it was suspended with this load. necessary for switching off the coupling, more than the force of the electromagnet 17 applied to the zero coupling N. In the initial state, the coupling half 14 is pressed against the coupling half 12.

When the actuator 7 is turned on, the cable is wound (unwound) onto the JO junction and nodnmag (lowers) the load gripper 9 with the load.

The need for a vertical drive (1 | about moving cargo lorry about ftvt rpy: iii includes electromyp / 7, which through pwnar / 6 shifts the louflute} 4 and, thus, ot-, includes 6apa6air tO from the drive 7, the weight and free load Pot of hands with any speed.

Subject invention

Claims (2)

1. A cantilever crane for installation of parts on machine tools, containing a column- rigidly mounted on the base; well, a console pivoting in a horizontal direction, consisting of two connected links and equipped with cargo lifting equipment with a helical-kalpogo mechanism; In order to increase the speed of the load gripper without load and increase the service life of the drive, the mechanism of vertical movement is equipped with a cam clutch, one clutch of which is rigidly connected to the load drum the cable and the system, and the second semi-coupling nosazheya to the output shaft of the hryvnia with the possibility of longitudinal movement, is spring-loaded and connected by a lever with the electromyorHHftftv that turns it off when moving the load gripper without a load. 2. A crane according to claim 1, characterized in that, in order to ensure safety of operation, the coupling cams are configured so that. with a suspended minimum load. the force required for switching off the coupling is greater than the efforts of the electromagnet. applied to the half coupling. i ten 13 Dld