SU815224A1 - Suspended cradle - Google Patents

Description

I

The invention relates to an auxiliary technique for carrying out construction work, as well as to hanging sheets for performing, for example, thermal insulation work on vertical apparatuses of technological installations of oil refineries and other production facilities.

A well-known cradle for construction works, including a frame with a working platform, flexible suspensions attached to support blocks located on the floors of buildings, winches and electric drives and brakes, electric leads and cable and control panel 1}.

Also known is a man for the manufacture of construction and repair work with a pneumatic actuator, consisting of a collapsible steel frame, winches and catchers for catching the cradle with a safety rope. With this winch

mounted on the frame and supplied with a pneumatic actuator, and the rotation from the drive is transmitted to the winch drum via a worm gearbox, on the shaft of which a safeJJ-handle brake is installed, preventing the arbitrary fall of the cradle 2.

Famous animals cannot be used {w in a gas zone and. not good enough to ensure the safety of work on:

The purpose of the invention is to expand the scope and improve safety.

Claims (2)

This goal is achieved by the fact that the hanging cradle, including the frame with the platform, the electric winch and the brake assembly in the form of pads, the control panel, is equipped with an additional brake, made in the form of an electrohydraulic ram, connected by a system of levers with the code of the coax on the winch shaft. 3 In FIG. 1 shows the cradle, general view; in fig. 2 is a diagram of an electric drive with a winch and a hydraulic ram in FIG. 3 - brake assembly. Suspended cradle includes frame 1, fence 2, winch 3, electric motor 4 explosion-proof, brake assembly 5 including electrohydropusher 6, connected 7 th through hole 8 with rod 9 having return spring 10 attached to frame II of winch . The rod 9 is connected to the brake system, Ferado G4 and 15 are riveted on the metal plates 12 and 13, covering the shaft 16 of the explosion-proof engine 4 when braking. The plates 12 and 13 are connected by a brake drum consisting of a movable part 17 on which the rod is fixed 9, and the fixed part 18, the studs 19 and 20, the thrust springs 21 and 22, the washers 23 and the nuts 24. The winch 3 is provided with a casing 25, a disc lifting brake 26, a gear 25, a friction drum 28, a locking unit 29 and a handle 1M drive 30. The winch hoist system is equipped with a cargo rope ohm 31, safety cable 32, catcher 33, cable load 34 for tensioning the rope and control panel 35, consisting of explosion-proof elements: buttons, limit switches and power cable. The LE-pendant works as follows. For example, a special device with an arrow equipped with a turning mechanism and a rope 31 is installed on the top of a vertical apparatus during insulation or repair work, for example. The opposite end of the rope is stored in the friction drum 28 and lowered to the ground through the rollers. A weight 34 weighing 25 is suspended to the lower end of the rope. The safety rope 32 is fastened to the same boom, the catch 33 is passed and pulled by the load 34. After the ropes are stored, the power supply cable with an armored sheath is connected to the control panel 35. After supplying energy to the button control unit 35, the winch is raised to the desired height of the apparatus and subsequently lowered to the ground. In the rest position of the cradle, the electric motor 4 is in the off state, and the brake plates 12 and 13 through the ferado 14 and 15 firmly grasp the shaft 16, ensuring the stable position of the cradle. When the cradle moves with the electric motor turned on 4 tons 7, the electropusher 6 presses the rod 9 of the movable part 17 of the brake drum which is eccentrically connected to the stationary part 18 and separates the brake drum, which causes the plates 12 and 13 to move apart, ensuring the free rotation of the shaft 16. After stopping the cradle in the required position, the engine 4 is turned off, while the return spring 10 returns the hydropusher 6 to its original position 7, and the stop springs 21 and 22 snap the parts 17 and 18 of the brake drum, In this case, the rigid clamping of the shaft 16 is prevented. In the event of an emergency shutdown of the power supply, the cradle can be lowered to the ground with a manual drive 30. After the termination, for example, of thermal insulation works. the cradle is lowered to the ground, the power is turned off, the cargo 31 and safety 32 ropes are disconnected and the cradle can be transported to a new place of use if necessary. The hanging cradle allows for improved safety at work and broadens the scope of application, including the hazardous areas of existing installations. Claims Suspended cradle comprising a frame with a platform, an electric winch and a brake pad in the form of pads tied leverage with brake pads on the winch shaft. Sources of information taken into account in the examination K Pful B.E. Means of small-scale mechanization in construction. 815224 M .: stroiizdat, p. 31 - 32 fig. 22 2. Smirnov N.A. Building production technologists. -L .: 1976, 32 (Rig.1 - / 25 fiTTEJ 2S FIG. 2 FIG. 3