RU2429982C1 - Cantilever rotary crane mounted on vehicle platform - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: proposed crane comprises frame mounted on platform and secured to vehicle bearer frame by center clamps, rotary base attached to said frame and provided with hinge assembly to allow changing said crane into transportation position by laying it on platform in horizontal plane so that rotary column and derrick are located along adjacent sides of platform. Outrigger is located in frame inner space and hinged to said frame to allow setting outrigger in operating or transportation position and locking it by pin.

EFFECT: expanded operating performances, longer life.

4 cl, 2 dwg

Description

The invention relates to material handling equipment, in particular to jib cranes.

Known self-supporting on the column cantilever rotary crane containing a rotary column mounted in a fixed column by means of an intermediate support with a bearing assembly, and an arrow connected to the upper part of the rotary column (see in the book by I.I. Abramovich, V.N., Berezin, A .G. Jaure. Hoisting cranes of industrial enterprises. Reference book. M: Mechanical engineering, 1989, p.242, Fig.14.3 c).

The disadvantage of this design is the presence of a foundation for fastening the flange of the fixed column by means of anchor bolts, which does not allow the use of this design on the side platform of the vehicle.

The closest to the claimed by design features and the achieved result is a wheeled vehicle with a crane manipulator (RF patent No. RU 71604, IPC B60P 1/54), containing a frame on which the cab and side platform are located, characterized in that the crane manipulator is installed in the corner of the platform at the front and side sides, on the side of the side board, on which the crane is located, an outrigger is located, made in the form of a screw mechanical jack, mounted on a retractable shaft, which is placed in a pencil case, Becoming the frame.

The disadvantage of this design is the uneven distribution of the load on the chassis of the vehicle due to the construction of the crane of the manipulator in the corner of the platform at the front and side sides, which can lead to premature failure of the parts of the chassis of the vehicle.

The objective of the invention is to expand the application of jib cranes and increase the durability of wheeled vehicles equipped with cranes.

The problem is solved due to the fact that the cantilever slewing crane mounted on the onboard platform of the vehicle, ACCORDING TO THE INVENTION contains

- a frame mounted on the on-board platform and attached to the supporting frame of the vehicle by means of ladders,

- a swivel base attached to the frame, equipped with a hinge unit, allowing the crane to be put into transport position by laying it on the vehicle’s onboard platform in a horizontal plane, so that the rotary column and boom are located along adjacent perpendicular sides of the vehicle’s onboard platform,

- an outrigger located in the cavity of the frame and through an axis pivotally connected to the frame, which allows the outrigger to be installed in the working or transport position with its fixation from rotation in the horizontal plane by installing a finger.

The invention is illustrated in the drawing.

A cantilever slewing crane mounted on the vehicle's on-board platform, depicted in the operating position in FIG. 1, comprises a frame 1 attached to the carrier frame 2 of the vehicle by means of step ladders 3, a tiltable base 4, pivotally connected to the frame 1 by means of axles 5 and pressed against frame 1 with nuts 6. A glass 7 with kerchiefs 8 is welded to the tilt base 4, into which a rotary column 9 is assembled with bearing assemblies 10, fixed from nut 11 falling out of the glass 7. To the rotary column 9 p the handles 12, the link 13 and the boom are attached. 14 On the free end of the boom 14 there is a link 15, for which a chain hoist 16 and a control cable for the rotation of the boom 17 are suspended 14. In the cavity of the frame 1 there is an axis 18, through which a rotary outrigger is pivotally attached 19 with a sleeve 20 at the free end, in which a screw jack 21 is installed, equipped with a fifth 22. The rotary outrigger 19 is fixed in the working or transport position from turning in the horizontal plane with the finger 23.

Figure 2 shows a cantilever slewing crane mounted on the vehicle side platform in the rear right (in the direction of the vehicle) part in the transport position.

The cantilever slewing crane mounted on the onboard platform of the vehicle operates as follows.

Before installing the crane in the working position, the rear and right side sides of the vehicle’s onboard platform are folded out, the finger 23 is removed and the rotary outrigger 19 is turned into the working position, after which it is fixed with the finger 23. The screw jack 21 is connected to the sleeve 20, focusing on heel 22. Next, set the swivel column 9 in a vertical position and fasten the tilt base 4 to the frame 1 with nuts 6. A chain hoist 16 is hung on the link 15 for raising and lowering the load, as well as a turn control cable 17 p 14. The presence of bearing assemblies 10 makes it possible to easily rotate the rotary column 9 in the cup 7, both without load and with the load on the boom 14. The rotation of the boom 14 can be controlled by the operator from the vehicle’s onboard platform by the arms 12 on the rotary column 9 , and from the floor - for the steering control cable 17, mounted on link 15.

After carrying out work on the loading or unloading of cargo, the cranes are placed in the transport position. Why remove the chain hoist 16 and the cable to control the rotation 17 of the boom 14 from the link 15 and lay them on the onboard platform. Next, unscrew the nuts 6 and lay the rotary column 9 on the side platform of the vehicle in the transport position, in which the rotary column 9 is in a horizontal position along the rear side, and the boom 14 is in a horizontal position along the left (in the direction of the vehicle) side. Disconnect the screw jack 21 from the sleeve 20 and lay it on the on-board platform together with the fifth 22. Take out the finger 23, turn the outrigger 19 into the transport position along the right (in the direction of the vehicle) side of the bead and fix it in the transport position by installing the finger 23 in the frame hole 1. After that, the rear and right side of the vehicle side platform are raised earlier.

In comparison with the known devices of a similar purpose, the proposed technical solution allows to expand the field of application of jib cranes. The application of the mechanism for translating the crane into the transport position by laying it on the vehicle’s on-board platform makes it possible to more rationally distribute the load from the crane’s own weight on the on-board platform, which makes it possible to increase the durability of wheeled vehicles equipped with cranes with light-weight handling devices.

Information sources

1. I.I. Abramovich, V.N. Berezin, A.G. Jure. Cranes of industrial enterprises. Directory. M .: Engineering, 1989.

2. Federal State Unitary Enterprise "Central Scientific Research Automobile and Automotive Institute" NAMI "" Wheel Vehicle with a Crane »// RF Patent No. RU 71604, IPC В60Р 1/54. / Publ. 03/20/2008. Bull. Number 8.

Claims (4)

1. A cantilever slewing crane mounted on an on-board platform of a vehicle, characterized in that it comprises a frame attached to the carrier frame of the vehicle by means of ladders, a hinged base containing a cup with a slewing column assembled therein with bearing assemblies, a nut protecting a rotary column from axial displacement in the glass, and an arrow rigidly connected to the rotary column by means of at least one axis pivotally connected to the frame, which allows laying Wounds on board the vehicle platform in the transport position, wherein the rotary column, and the boom are adjacent along the sides perpendicular to the sides of the vehicle platform or crane installed in an operative position in which reclining base nuts fastened to the frame, and the swing column takes a vertical position. 2. The crane according to claim 1, characterized in that at the free end of the boom there is a link to which a chain hoist and a cable are suspended to control the rotation of the crane boom from the floor. 3. The crane according to claim 2, characterized in that on the rotary column are made handles for controlling the rotation of the boom from the vehicle’s onboard platform. 4. The crane according to claim 3, characterized in that the cavity of the frame has an axis by means of which a rotary outrigger with a sleeve at the free end is pivotally attached to the frame, into which a screw jack equipped with a fifth is installed, and the rotary outrigger is fixed in the working or transport position from turning horizontally with your finger.

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