RU1773841C - Gantry crane - Google Patents

Abstract

Usage: crane industry. SUMMARY OF THE INVENTION: the crane is equipped with additional horizontal and vertical hinges installed in the main locations, in pairs, opposite, with a horizontal hinge parallel to the longitudinal axis of the span beam at one end of the horizontal joint axis, and a beam mounted on the other end parallel to the transverse axis of this beam the last parallel to the longitudinal axis of the span beam, and stops, spring-loaded relative to the ends of the beam, placed with the possibility of transverse sliding along the span ball e. 5 ill.

Description

The invention relates to hoisting and transporting devices and can be used in the crane industry.

The purpose of the invention is to provide stability, increase durability and simplify the design.

The goal is achieved in that the movable supports are connected to the ends of the span beam using vertical and horizontal hinges, respectively, and the connection of the movable supports to the span beam is provided with additional ones, one of them is vertical and the other horizontal, hinges. Additional hinges are installed in the main locations in pairs, opposite, with the horizontal hinge at one end of the axis parallel to the longitudinal axis of the span beam, and at the other end parallel to the transverse axis of this beam. The latter is mounted parallel to the longitudinal axis of the beam and supports, spring-loaded relative to the ends of the beam, placed with the possibility of lateral sliding along the span beam.

The crane diagram is shown in figure 1, the connection of the span beam with one movable support - in figure 2, 3 and the connection of the span beam with another movable support - in figure 4, 5.

The gantry crane contains a span beam 1 with a cargo trolley, two identical movable supports 2 and 3, two driven 4 and two driving 5 wheels. The movable support 3 is connected to the span beam by two series-connected hinges 6 with a horizontal, perpendicular axis of the span beam, a rotation axis and a hinge similar to the hinge 7, with a vertical axis of rotation. Mouth 2 has an additional connection with the span beam 1 using the rocker arm 9 and two spring-loaded spring 11 sliding stops 10.

When the crane moves, the drive wheels 5 move the movable bearings 2 and 3 with inter

with

Xj

VI

s

00

4

flight beam along the rails The horizontal displacement of the rails is compensated by hinges 7 and 8 by rotation around their axis of rotation, which eliminates additional horizontal loads and stresses in the metal structures of the span beam 1 and the mobile supports 2, 3 of the crane, as well as in the rails of the crane track. These hinges compensate for the horizontal kink of the rails.

The non-flatness of the four contact points of the rail track and the running wheels is compensated by a horizontal hinge 6 with an axis of rotation along the axis of the span beam. Vertical load from the span beam

1 is transmitted to three points (two support wheels

2 and the axis of the hinge 6), which further ensures reliable transfer of the load from the axis of the hinge 6 to the wheels 4 and 5 of the movable support 3. Even at different heights of the contact points, the proposed scheme eliminates additional vertical loads and stresses in the metal structures of the supports.

To ensure the stability of the crane across the crane path, a spring-loaded beam 9 is used (Fig. 4). which, due to the uniformity of the springs 11 and the sliding ability of the stops 10 at any position of the span beam, in horizontal and vertical axes, holds the movable supports vertically.

The described gantry crane is stable, simpler than known, consists of more durable elements and less metal due to the elimination of additional horizontal and vertical loads and stresses, even with planar height fractures and local displacements of the crane track.

Claims (1)

SUMMARY OF THE INVENTION A gantry crane comprising a span beam, movable supports, each of which is connected to the end of the beam using vertical and horizontal sockets, respectively, characterized in that, in order to increase stability and reliability, it is provided with additional horizontal and vertical hinges installed in the main locations in pairs, opposite, with an arrangement on one end o: and a horizontal hinge parallel to the longitudinal axis of the span, and HJJ the other end parallel to the cross the axial axis of this beam, a rocker mounted on the last parallel to the longitudinal axis of the span and the stops, spring-loaded relative to the ends of the rocker, placed with the possibility of lateral sliding on the span. ЈO X hhhhhhhh x h hh fig 1 1 & ° h FIG. 5