SU1601084A1 - Pneumatic hoist - Google Patents

Abstract

The invention relates to devices for lifting or moving loads, for fixing loads in a certain position and can be used in the manufacture of periodically retracted masts for various purposes. The purpose of the invention is to simplify the design. The elevator consists of telescopic sections located one inside the other. A stand 15 is installed near the outer section, in the guides of which a rod 16 is located vertically. At the upper end of the bar there is an abutment that has the ability to rise and fall along the bar and rotate around the bar. The stop is adjusted when the lifting height of the load is set to contact with the upper collar of the corresponding section. 2 Il.

Description

The invention relates to a device for lifting or moving goods for fixing loads in a certain position and may not be used in the manufacture of periodically-relieved towers for various purposes.

The purpose of the invention is the improvement of consrueges. .ten

Fig. 1 shows a lift with a device for automatically setting a lift level, a general view; in fig. 2 - node I on Lig. .one,

The elevator contains a ring-base 5 kie 1, on which is fixed goat-Lorma. On the platform with the aid of ring 3, the outer section 4 of the telescoptic shell 20 is fixed (for example, with the aid of bolts).

Inside the outer section 4 of the position 5, industrial sections 5 and 6 are internal. All these sections have a section as shown in FIG. 1, 1O. The inside section 6 on top 25 is closed by a disk 7, a hole is made in platform 2, which by air duct 8, attached to the platform, - FIG. Figure 1 shows two methods for compacting sections 4-6. Jq

In the first method, o-rings 9 (Figo 2) of triangular cross-section made of rubber or another elastic material are attached to the ends of sections 5 and 6 (these rings are made of tape). To prevent the rings 9 from crushing, on the platform 2 there are annular grooves of triangular section (Fig. 1). Between the end of the outer section 4 and the platform 2, 0 is located with the flat sealing ring 10. In another method, one end of the rubber stocking 11 is fixed circumferentially inside section 5.5 and 6, the other end is covered between section 4 g

and platform 2, the air pipe 8 is connected to a compressor (not shown) through

. valve 12, plang 13 and a pressure vessel (not shown) located between valve 12 and the compressor. The crane 12 has a handle 14 of the manual control. 1W

The device for automatic installation of the lifting level contains the hit rack 5, in the guide of which is located

i rods a 16 ;,.

Note the end of the shaft 16 kinematic (for example, a gear system

or levers) sv aan with overlap IIq element of the crane 12.

On the upper part of the rod 16, a stop 17j is freely located with its hole, which is attached to the rod with a screw 18. The height of the rod 16 is equal to a little more than the height of two sec- tion of the telescopic lift.

The lift works as follows.

By the handle 14 of the crane 12, the overlap element of the crane is installed on the closing of the crane. The stop 17 establishes a predetermined lifting height of the condition

H h- (n + 1) + h,,

de Н - height of lifting; h is the height of one section; p - the number of sections of the lift,

those of the stop 17; h, is the distance from the upper end of the section to the stop, which is set either by the divisions made on the rod 16 or by means of a ruler (the distance hj, is set).

In this case, the support 17 is turned on the trouser 16 to such a position that he would tear the number of sections of the elevator to lift them and upers to the end of the next section.

The air from the compressor through the pressure vessel (the valve located between the compressor and the vessel is open), the hose 13, the valve 12 (it is open, as the stop 17 is free ;; and the rod 16 with its weight through the kinematic connection turns the opening The U1 element on the position Open) and Bozdz conduit 8 is fed to section 6.

Due to the air pressure, the inner section rises. Thus, the elevator lifts the load to the required height until the elevator section presses its upper collar on the support 17, which does not sweat. the lift stops lifting).

When it is necessary, when it is necessary to maintain a load at this height for a long time (for example, for installation work), the valve located between the compressor and the high-pressure vessel is blocked, and

Claims (1)

the compressor stops. In the case of air passing through the sealing. the ring 9 and the pressure drop inside the sekh-hoist will drop a little (this value is determined by the transmission coefficient of the kinematic connection of the lower end of the rod 16 with the opening element of the tap 12). the rod 16 will open the valve 12 somewhat and the air pressure from the vessel will again lift the load to the required height. The rubber stocking 11 will eliminate completely the pressure loss inside the sections of the lift. Formula izob. p eteni Pneumatic lift containing telescopic cylinder, cavity 1084 communicated with a source of fluid under pressure, a fluid supply valve installed between the source and the cylinder cavity, a device for automatically setting the lift level of the sliding section of the cylinder, including a rod mounted thereon 10 movement and fixation stop, characterized in that, in order to simplify the design, the rod is mounted, moveable in vertical guides fixed to the fixed section, and kinematically connected with the crane, and the stop is arranged to interact with sliding section of the cylinder. 3 2ю Editor G. Baker Compiled by A. Mazilkin Tehred L. Serdyukova Order 3244 Circulation 598  VShPI State Committee for Inventions and Discoveries at the State Committee for Science and Technology of the USSR 4/5, Moscow, Zh-35, Raushsk nab. 113035 FIG. 2 Proofreader M.Kucher va Subscription