SU1031878A1 - Apparatus for limiting the approach of cranes - Google Patents

Abstract

A DEVICE FOR RESTRICTING THE CONNECTION OF CRANES, containing a cylindrical guide mounted on one crane and a pin located responsively to a cylindrical guide and fixed on another crane, as well as control units for the drives of crane movement and power supply unit, characterized in that, in order to improve performance cranes, it is equipped with sensors for the presence of cargo cranes and cargo relays, the coils of which are connected in parallel with the contacts of the respective sensors for the presence of cargo, and the contacts of the cargo relays are included in the control chains of the load lifting drives of the respective cranes, the socket mounted at the end of the cylindrical guide, the tongue and the cylindrical guide being made with the contact parts, and the control units of the drive drives of the cranes are relays, the coils of which are connected to the coils of the corresponding cargo relays and relevant contact details. from 00 00

Description

The invention relates to lifting equipment, namely, devices for limiting the approach of cranes. A device for limiting the approaching of cranes is known, comprising a cylindrical guide mounted on one crane and a tongue located responsively to a cylindrical guide and fixed on the other crane, as well as control units for crane driving drives and power supply unit 1. A disadvantage of the known device is relatively performance of cranes is low. The purpose of the invention is to improve the performance of cranes. .. This goal is achieved by the fact that the device for restricting the approach of the cranes, .. "Clamp switch". „„ And. „.“. A "n" containing a cylindrical guide mounted on one crane and a tongue-tier located in response to a cylindrical guide mounted on the other crane, as well as control units for driving the movement of cranes, and a power supply unit equipped with cranes load sensors and load relays, coils which are connected in parallel with the contacts of the respective load sensors, and the contacts of the load relays are included in the control circuit of the load drives of the corresponding cranes with a bell mounted on the end of the cylindrical second guide, wherein the cylindrical guide pin and adapted to contact ,, the details of the control units and actuators moving the valves adapted to relay katuschki katuschkami are connected to the respective truck and the corresponding relay contact details thereof. FIG. 1 shows the taps when approaching, a general view; in fig. 2 shows a pin and a cylindrical guide device for limiting the approach of cranes, when the cranes come together, side view; in fig. 3 shows section A-A in FIG. 2; in fig. 4 shows a section BB in FIG. 3; in fig. 5 and 6 is a variant of the circuit diagram of the device. The device for restricting the approach of the cranes comprises a cylindrical guide 1 mounted on one crane 2 and tongue 3 located responsive to / 7 steering 1 and fixed on the other crane 4. Guide 1 and tongue 3 are made with contact details 5 and 6, and in the first embodiment, the contact parts 5 and 6 are formed by a metal structure of the guide 1 and the pin 3, which are insulated relative to the metal structure of the cranes 2 and 4, and in the second version, the contact parts 5 and 6 are fixed on the guide 1 and the pin 3, respectively and isolator from the latter with the help of dielectric pads 7. The coils of the cargo relays 8 and 9 are connected in parallel to the contacts 10 and 11 of the respective sensors 12 and 13 of the presence of the load. The contacts of the load relays 8 and 9 are included in the control circuit of the drive of the lifting of the corresponding cranes shown). The control units of the cranes' drive actuators are made with the relay 15; the coils of which are connected to the coil of the corresponding cargo relay 8 and 9 and the corresponding contact parts 5 and 6. The valves 2 and 4 move along the crane runway 16. At the end of the guide rail 1, the socket 17 is fixed. to limit the approach of the cranes works as follows. The proximity of the taps 2 and 4, the pin 3 enters the socket 17 and then into the cylindrical guide 1, and the contact parts 5 and 6 come into contact and through the relays 14 and 15 the electrical circuit of the relay 8 and 9 closes. If at least one crane moves without load, then contact 10 or 11 of the sensor 12 and 13 is closed when the load is present, while the current of the coils of the relay 14 and 15 is limited and they remain off. Relay 9 or 8 is turned on and prevents the load from being lifted by an idle crane. If convergence of cranes 2 and 4, each of which moves a load, occurs, contacts 10 and 11 of both sensors 12 and 13 of the presence of the load are closed, and relays 14 and 15 are turned on, and valves 2 and 4 stop. Thus, the device eliminates the convergence of cranes with the load, which reduces the material consumption of the crane runways, while at the same time the convergence of cranes, one of which moves with the idle suspension, is permitted, which improves the performance of the cranes.

FIG. 2

A-fi

Bb

Fig

-Hi. lt

H

Jt

Claims (2)

A DEVICE FOR RESTRICTING AN APPROACH OF CRANES, containing a cylindrical guide mounted on one crane and a pin located in response to the cylindrical guide and mounted on another crane, as well as control units for the actuators 2'G crane movement and power supply, characterized in that, in order to increase the performance of cranes, it is equipped with cranes load sensors and load relays, the coils of which are connected in parallel with the contacts of the corresponding load sensors, and the contacts of the load relays are included in the control circuits of the hoist drives the load of the respective cranes, a socket mounted on the end of the cylindrical guide, and the pin and the cylindrical guide are made with contact parts, and the control units for the drives for moving the crane They are relays whose coils are connected to the coils of the respective load relays and the corresponding contact parts.