SU1294741A1 - Movable lining of pulley - Google Patents

Abstract

The invention can be used as a lining of mine pile pulleys. The aim of the invention is to improve the reliability of the movable lining. The movable lining contains lining liners 1 made of antifriction material, elastic rubber elements 2. Above the lining liners 1, on which rope 3 is placed, outside the zone of action of the latter, devices for holding liners in the pulley rim are attached to the o0od 4 flanges 4 magnetic systems. Each magnetic system includes a ferromagnetic body 5 with a profile recess in which permanent magnets 7 are installed with side gaps 6. The side gaps 6 are supplemented with a non-magnetic material. After wear lining liners 1 movable lining with. The sides of the contact with the rim 4 are shifted by magnetic systems by the amount of wear until they come into contact with the upper edges of the lining liners 1. After that, the movable lining is put into operation again. 2 Il. (L Yu with 4 cpi / e.E

Description

3 and lining liners 1, which causes the movement of the rope 3 together with the lining liners 1 relative to the bearing surface of the rim 4 of the pulley. At the same time, due to the fact that transfer of friction sliding is achieved from the zone of contact with lining liners 1, where high contact pressures act, to the zone of contact of lining liners 1 with the bearing surface of the rim 4 of the pulley, where

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The invention relates to lifting devices, namely, to lined pulleys of lifting installations, and can be used on mine pulley pulleys.

The purpose of the invention is to increase the reliability of the movable lining.

FIG. 1 shows part of a rim of a pulley with a partial cut; in fig. 2 - section A-A. in fig. one.

Lining liners 1 of antifriction-10 are subject to low specific pressures, excluding a CI.ONIC material (for example, polyamide, forced wear of lining

PA6-nylon) laid in a V-shaped rim liners 1 at the point of contact with the rope 3.

pulley. Elastic elements 2 (for example, in the form

After wear of the lining liners 1 from the side of contact with the rim 4 by an amount unacceptable from the point of view of further operation due to their possible loss due to the large gap between the upper edges of the lining liners 1 and the lower ends of the housings 5, the latter are mixed in the direction to the axis of rotation of the pulley.

. For periodic stirring of magnetic systems with overcoming magnetic energy, devices acting on well-known mechanics ARMCOs, etc. can be used with a profile recess, 25 principles (screw, rack and pinion, in which a permanent magnet is installed with side gaps 6). 7. The side gaps 6 are filled with non-magnetic material (for example, ACT-1 or SHE-2 plastic, epoxy, etc.).

During the operation of the pulley, at the moments of the elastic stretching of the rope 3, the individual liner liners 1 at the portion of the rim 4 of the pulley corresponding to the angle of the pulley circumference of the pulley 3, are moved together with the rope 3 in accordance with its elongation. The movement of the liner liners 1 together with the rope 3 is due to the fact that the rope 3, having a corrugated outer surface of rubber elements) is tightly inserted in the holes of one of the two matching liners 1 so that the protruding parts of the elastic elements 2 are placed in the gaps between the liners 1 . A rope 3 is placed on the liner liners 1. Above the outer edge of the liner liners 1, outside the zone of the rope 3, magnetic systems are attached to the rim flanges 4 by magnetic energy, each of which includes a ferromagnetic body 5 (for example, from steel 10, steel 20, iron

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hydraulic, etc.).

Claims (1)

Invention Formula 35 A movable lining of a pulley, comprising lining liners located along a ring of a pulley rim with gaps between each other and a device for pressing them to the rim, characterized in that in order to increase the reliability of the movable lining, the device for pressing the lining liners to the rim is made in the form of magnetic systems with permanent magnets mounted on the pulley flanges above the outer edges of the lining elements outside the zone of the rope, with the possibility of a primary shift of magnetic systems with permanent magnets on the surface rims in the direction of the rotation axis of the pulley. is pressed by the outer wires into the plastic liner liners 1. As a result, at the point of contact of the rope 3 with the liner liners 1 there is a bond between the rope 3 and lining liners 1, which causes the movement of the rope 3 together with the lining liners 1 relative to the bearing surface of the rim 4 of the pulley. At the same time, due to the fact that transfer of friction sliding is achieved from the zone of contact with lining liners 1, where high contact pressures act, to the zone of contact of lining liners 1 with the bearing surface of the rim 4 of the pulley, where chesky principles (screw, rack hydraulic, etc.). Invention Formula principles (screw, rack, mechanical A movable lining of a pulley, comprising lining liners located along a ring of a pulley rim with gaps between each other and a device for pressing them to the rim, characterized in that in order to increase the reliability of the movable lining, the device for pressing the lining liners to the rim is made in the form of magnetic systems with permanent magnets mounted on the pulley flanges above the outer edges of the lining elements outside the zone of the rope, with the possibility of a primary shift of magnetic systems with permanent magnets on the surface rims in the direction of the rotation axis of the pulley. fig1 Compiled by A. Bondarenko Editor A. SaboTech. I. VeresKorrektor L. Patay Order 443/22 Circulation 721 Subscription VNIIPI USSR State Committee for Inventions and Discoveries And 3035, Moscow, F - 35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, ul. Project, 4