SU387879A1 - SHIP'S DEVICE FOR DOWNLOAD AND LIFTING BIG-ULTIMATE BOATERS ON A WAVE - Google Patents

Description

one

The ship's devices for launching and lifting heavy-duty boats Ivoliii, containing a bridge edge with coisols and a transverse beam with remote blocks, cargo winches with a cable blocking system of cross-rocking swing cable and a cable blocking system of longitudinal swinging of hanging rope hangers,

In the known devices, the damping of the longitudinal rocking of the boat occurs with a limited resistance to deviations from the vertical tension of the suspended boat and with a slow increase in the counteracting forces.

The purpose of the invention is to increase the resistance of the suspension of the suspended boat from the vertical position and to ensure a rapid increase in the opposing efforts.

This goal is achieved in that the cable-and-block system of the hichei and herrod swings is carried out with pull-wire cables, with tight running gears to the movable blocks, and with the root ends stored in the outgoing blocks and attached to the drums installed at the ends of the winch cross beam, as well as themes. These winches have the following drive, performed in the form of blocking of hydraulic engines with high and low pressure hydraulic systems, having electromagnetic gold

switches electrically connected to the contacts of electromagnitic relays of a constant current and separated by counter-mounted valves connected to the terminals of the driver in the electrical circuit of the junction of the tachogenerators connected kinematically connected to the drums of the winches.

FIG. 1 shows the proposed device, a general view; in fig. 2 is a diagram of a cable blocking system for longitudinal swinging and blocking of winches with high and low pressure hydraulic systems; in fig. 3 is an electrical circuit of a follow-up drive of winch hydraulic motors.

The device consists of a bridge speck 1 with consoles 2 and a transverse beam 3 with remote blocks 4. On the crane / mounted cargo winches 5 with cables: 6 lifts and with a cable-blocking system 7 swinging rods, passing through shifting blocks 8, to the hulls of which cable ties 9 cables of the cable block system for clearing the no-pole rocking, drawn into the portable blocks 4 and attached to the root ends of the drums 10. The drives of these winches are driven by hydraulic motors //. The winches W are connected kinematically with tachogenerators of direct current 12, electrically connected to the setting response.

To protect the Korea tachogenerators 12 from short-circuiting, the ballast resistances M are inserted in the circuit of each of them. The winch control system 10 includes electromagnetic relays 15, the coils of which are connected to the terminals of the master resistor 18 through the counter-mounted valves 16 and 17 and are bridged with zener diodes 18 with additional resistance 19. Relays 15 have normally open contacts 20 in the circuit of electromagnets 21 high-pressure spools 22 and normally closed contacts 23 in the circuit of electromagnets 24 low-pressure spools 25 .

The device works as follows.

In the absence of worry, the ascent (or descent) of the boat, made with the help of winches 5 and cargo cables 6, occurs without rocking. When this winch 10, work in a single mode, choose pull cables 9 with the same speed. Tachogenerators 12 in this case operate in a counter-current mode and the voltage at the terminals of the driving resistor 13 is zero, the relay 15 is de-energized, their normally closed contacts 23 are closed in the electromagnet circuit 24 of the low pressure spools 25, and the tension in the release cables 9 does not prevent ascent (or descent).

During rough sea, a boat lifted (or lowered) by cargo winches 5 swings on the cargo cables 6 and causes an alternate tension change in the pull cables 9, thereby changing the speed of the cables selection. At one of the winches 10, the speed is increased by the magnitude of the speed at which the boat deviates from the vertical position of the ascent, and by another for this value the speed is reduced.

The speeds of the tachogenerators also vary accordingly. As a result, a voltage appears at the terminals of the driving resistor 13, and since the current can flow through either the valve 16 or the valve 17 (in

depending on the direction of the generated voltage), one of the relays 15 is triggered, the current appears in one of the electromagnet 21 coils and, closes its contact 20, turns on one of the spools 22, informs one ns hydraulic motors 11 with a high pressure hydraulic system and instantly increases the force opposing rocking.

Present Invention

1. A ship device for launching and lifting heavy-duty boats on rough seas, including bridge rails with brackets and crossbeams with portable blocks, cargo winches with a cable-blocking system for cross swinging and a cable-blocking system for blanking longitudinal swinging, characterized in that, in order to enhance counter-resistance the deviation of the suspended boat from the vertical position, the cable-block system for damping the longitudinal swinging is carried out with pull cable runs attached by the running ends to odvizhnym blocks and root ends zapasovannymi in remote blocks and affixed to the reels mounted on the ends of the transverse beams winch having a hydraulic actuator with automatic tracking of

change of tension in the cables.

2. A ship device according to claim 1, characterized in that, in order to ensure the rapid growth of opposing forces, the follower drive is made in the form of blocking the winch hydraulic motors with high and low pressure hydraulic systems having electromagnetic spool switches electrically connected to the contacts of electromagnetic relays direct current and separated counter

installed valves connected to the terminals of the driving resistor in the electric circuit of the oppositely connected tachoheperators connected kinematically to the drums of the winches.

-387879

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