SU1641768A1 - Parallelogram lift - Google Patents

Abstract

This invention relates to lifting devices used to lift and move loads. The purpose of the invention is the expansion of technological capabilities by providing stepwise plane-parallel movement. Parallelogram lift contains a platform on the chassis, on which the working body is hinged, including power parallelograms made of hinged sections by means of removable axes. Each power parallelogram is provided with a drive connecting its opposite angles. The load-carrying tip is made in the form of a triangular prism, the free faces of which are provided with fastening elements. The drive can be made in the form of a telescopic hydraulic cylinder, connecting two opposite angles of the parallelogram. The drive may also be made in the form of a parallelogram of a two-sided pulley that binds two angles, the other opposite angles of which are connected by tension cables. The working body of the lift is equipped with support wheels. 3 hp f-ly, 10 ill. /

Description

This invention relates to lifting devices used to lift and move loads.

The purpose of the invention is the expansion of technological capabilities by providing stepwise plane-parallel movement.

Figure 1 shows a parallelogram hoist with a power parallelogram drive in the form of telescopic hydraulic cylinders when lifting the working member without resting on the base, side view; figure 2 - the same, when the lifting of the working body with step support on the base; on fig.Z - the same, front view; 4 shows a parallelogram hoist with a cable-block drive of power parallelograms; Fig. 5 is a longitudinal section of the working member; 6 is a transverse section of the working member; Fig. 7 shows a removable axis for connecting the longitudinal and transverse sections; Fig. 11 shows a connection unit of the longitudinal and transverse sections; Fig. 9 is a diagram of the use of a parallelogram hoist when mounting a bridge crane in a building; in fig. K) - the same, when installing the upper part of the chimney.

Parallelogram lift contains a turning platform mounted on the chassis 2, and equipped with a load-carrying tip 3 working body. The latter is made of a number of pivotally connected to each other.

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power parallelograms, which are assembled from harn-connected 4 removable axes 4 longitudinal sections 5 and transverse sections 6, which are made interchangeable. The load-carrying tip 3 is a triangular prism, the oblique face 7 of which is pivotally attached to the extreme force parallelogram of the working body, and the horizontal face 8 and the vertical face 9 are equipped with load securing elements 10. Installation of wheels 11 is provided on removable axles x 4 parallelogram lifts, for which landing surfaces 12 are made on axles 4.

The drive of each power parallelogram includes a hydraulic cylinder 13 mounted on the free ends of removable axles 4 and connecting two opposite angles of the parallelogram. The drive of each power parallelogram can be made in the form of a chain hoist

14 connecting the opposite angles of the parallelogram through the rollers 4 provided at the ends of the removable axes

15. Other parallel blades of the parallelogram are connected by strapping cables 16, which, like the cables of the polyspasts, are led through guide rollers to winch drums mounted on a turntable 1. The device can be equipped with a working platform 17 (figure 4).

Parallelogram lift works as follows.

If it is necessary to perform installation work inside the building (Fig. 9, the working body is inserted inside it through an opening in the wall due to an elevator hitch. The cargo prepared for installation (for example, an overhead crane) is attached to the workman’s head 3 of the working body, raised and brought under the mountable crane from below and after fixing it on the load-carrying head 3 are lifted and placed in the design position. At the same time, the load can be provided on the base at the location of the bearing ball ki building

If necessary, the installation of the upper part of the chimney (figure 10) last lift using a lift in a vertical position. Then the vertical face 9 of the load-carrying head 3 is rigidly fixed with

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fastening elements 10 to the lower part of the pipe to be mounted, raise it to the required height and set in the design position.

The lifting is carried out with step-by-step support of the device working organ to the base.

Claims (4)

1.Narallelogramm elevator, containing a platform on the undercarriage, on which a working body is hinged, including power parallelograms made of hingedly connected sections by means of removable axes, translational drive and hingedly connected to the last parallelogram, that, in order to expand technological capabilities by providing stepped plane-parallel movement, each power parallelogram is equipped with a drive connecting it tivolezhaschie angles and load-carrying head part is formed as a triangular prism, which faces free for attachment elements are provided. 2. A lifter pop. 1, characterized in that the drive of each power parallelogram is made in the form of a telescopic hydraulic cylinder mounted on removable axles and connecting two opposite angles of the parallelogram. 3. The elevator according to claim 1, characterized in that the drive of each power parallelogram is made in the form of a polyspast stocked through rollers mounted on removable axles and connecting two opposite angles of a parallelogram, while the other two opposite angles are connected by a tension cable, while the tackles and tension cables are connected to the drums of the winches installed on the platform. 4. A lift according to claims 1-3, characterized in that at the ends  removable axles mounted support wheels.  I, / Is No ... Vnr.1 VI l t  x -xX./, - lzNU L ... .2 f.il..s .. 00 VD G- f vd 0 I fr v l 4 $ Г 4V4-ЧЧ Г СТ Л V СЧЧЧЧЧ wj W Rig, 10 Compiled by G.Vronska. Editor M.Petrova Tehred A.Kravchuk Proofreader A.Obruchar Order 1120 Circulation 422 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 P P 2 & & / one CTL V CHCHCHCHCH Subscription