SU1477880A1 - Service landing - Google Patents

Abstract

The invention relates to devices for organizing a workplace at a height. The purpose of the invention is to improve performance in confined spaces. The service platform consists of support elements 1 and a folding platform 3 with a fence 4. The platform movement drive with a fence is made with flexible branches of an endless closed chain 5 connected by a carriage 6, jointed by a hinge 7 with a platform and equidistant crossbars 8 forming below the carriage 6 ladder ladder. Platform 3 is pivotally connected to the U-shaped element 11, to which is attached a cable of the cable-block system 12 with a drive 2. 6 Il.

Description

one

I

The invention relates to devices for organizing a workplace at a height when servicing various mechanisms in natural conditions.

The purpose of the invention is to improve the operational performance in confined spaces.

Fig. 1 shows a service platform, a general perspective view of Fig. 2 is view A in Fig. 1. Fig. 3 is view B in Fig. 2; figure 4 - section bb In figure 2; FIG. 5 is a view of FIG. 2; figure 6 is a view of D in figure 2.

The service platform consists of the bearing elements 1, the drive 2 movement, the folding platform 3 with the fences 4 in the form of two parallelograms. The drive is made with two flexible branches of an infinite closed circuit 5. The folding platform is equipped with a carriage 6, which is jointed with it by a hinge 7. The carriage is rigidly attached to the branches of the chain, which are also connected by cross members 8, forming below the carriage 6. The stops 9 and 10 are located with the necessary height pitch on the bearing elements 1. To the platform 3 is pivotally attached to the U-shaped element 11, connected by a cable block system 12 with a drive 2.

The carriage 6 of the platform 3 is provided with a fixed gear crown 13, which is newly aligned with the hinge 7 and is kinematically connected with the gear wheel 14 of the device 15 of the installation of the fence 4.

The flexible branches of chain 5 are connected below by a common hall 16} kinematically connected turn-on clutch 17 with a self-retracting gear 18 of the vodka mechanism of platform 3 to stops 9 and 10, and for depletion of platform 3, flexible branches are fitted with counterweights 19. Bearing elements 1 from three sides have a protective net 20.

Service platform works

in the following way.

The initial position — the platform 3 is installed in a vertical position, the barriers 4 are folded, the flexible branches of the chain 5 through the shaft 16 are locked by a coupling 17 with a self-braking gear 18.

To install the platform 3, the shaft 16 is unlocked by the turn-on clutch 17, turns on at 5 waters 2 and the platform 3 moves in a vertical position to the required service height, orienting by stops 9 and 10, locks the shaft 16 by clutch 17 and the chain 5 from moving,

0 and drive 2 makes the platform 3 tilt through the cable-block system 12 and the U-shaped element 11, while the platform 3 has an offset of the center of mass relative to the axis of the hinge 7 of the carriage 6 and leans under its own weight into the working position, abutted against the stops 9 and 10.

If, due to the inaccuracy of the preliminary exhibition, platform 3 does not engage the stops 10, then the gearbox 18 of the finishing mechanism together with the actuator 2 is set in a fixed operating position and the actuator 2 stops.

5 Simultaneously with the lowering of the platform 3, the gear wheel 14, kinematically connected with the stationary ring gear 13, rolling over the latter, acts on the device 15 of the fence 4 installation and at a fixed working position of the platform 3, the fence 4 takes a fixed vertical working position.

five

0

The service personnel is led by a ladder formed by the crossbars 8, and rises to platform 3 through an opening in the site to carry out the necessary work. To eliminate the deflection of the flexible leg of the chain 5 when raising the staff, each cross member 8 is provided with support rollers installed in the supporting elements 1.

In order to ensure the safety of the staff, the carriers 1 on three sides with respect to the ladder are equipped with a safety net 20. The presence of counterweights 19 allows the platform 3 to be weighed out and, consequently, to reduce the load capacity of the drive 2.

After carrying out the necessary work from platform 3, the service personnel is removed from it and after exiting the doorway, the driver 2 is turned on for the platform view from the service area, namely, through the cable block system 12 to the U-shaped element 11, platform 3 rises vertically, and fences 4 are folded.

The service platform is equipped with the necessary locking devices, which exclude the possibility of switching on the drive 2 during the operation of the service personnel on the folding platform 3.

Claims (1)

Invention Formula The service platform, which includes a support element with stops, a folding platform with folding barriers, a platform movement drive and a fence, is characterized in that, in order to improve performance in a limited space, it is equipped with a carriage pivotally connected to the platform, and the drive of its movement and the fence is made in the form of a closed chain of two branches fixed on the supporting element, and a cable-block system with a U-shaped element hinged to the platform, and and interconnected by a carriage and crossbars located below the carriage connected by means of a gear transmission with a fence, while the branches of the chain are made in the lower part with their unifying shaft connected through an engaging clutch with a self-braking gear of the platform finishing mechanism . View 4  , + 2 FIG A VidD