RU205382U1 - Gantry crane modular truss construction - Google Patents

Abstract

The utility model relates to the construction of gantry cranes, in particular to the modular construction of a truss gantry crane. The technical result consists in increasing the efficiency of the gantry crane due to the implementation of the bridge track and supports modular. The claimed technical solution is a modular truss gantry crane, containing a bridge mounted on supports, forming a trolley track, a lifting mechanism, a movable trolley capable of moving along the chord of the bridge truss, containing a load-gripping mechanism connected to a lifting mechanism, while the supports are connected by ties and are installed on movable carts, the crane bridge and supports contain removable modular sections, and the bridge sections are connected by a finger joint, and the support sections - by a bolted joint.

Description

FIELD OF TECHNOLOGY

The claimed device relates to structures of gantry cranes, in particular, to a modular structure of a truss gantry crane.

LEVEL OF TECHNOLOGY

Gantry cranes with a truss structure are designed to move various loads during installation work in construction shops, in warehouses. These types of cranes are widely used at container yards, timber processing plants, transshipment yards, river and sea ports.

A known design of a gantry truss crane (RF patent 2596204, 08/27/2016), in which the crane contains at least one horizontal crane girder of a lattice structure with upper and lower guides, on which a crane trolley with a lifting mechanism is installed with the ability to move. The crane is provided at one or both ends of its crane girder with a movable adapter assembly containing a connecting surface for attachment to the chassis. The adapter is moved both along the length of the beam and, if necessary, up and down, right and left, or rotated by a certain degree around the longitudinal axis of the beam. Then the adapter in its final position is welded to the crane girder, after which the connecting surfaces of the adapters are connected to the crane running gear.

The known crane design is monolithic and does not provide a quick change in the superstructure design to achieve the required crane lifting capacity, which greatly narrows the functionality of this design.

ESSENCE OF THE USEFUL MODEL

The claimed device makes it possible to solve a technical problem in terms of creating an effective universal modular structure of a gantry-type truss crane, which provides quick dismountable operations for adjusting the height and span of the crane.

The technical result consists in increasing the efficiency of the gantry crane, due to the implementation of the bridge track and supports modular.

An additional result consists in expanding the arsenal of technical means, in particular, gantry-type truss cranes, as well as in increasing the speed and ease of adjusting the span and lifting height of the crane.

The claimed technical solution is a modular gantry truss crane, containing a bridge mounted on supports, forming a trolley path, a lifting mechanism, a movable cart made with the possibility of moving along the chord of the bridge truss, containing a load-gripping mechanism connected to a lifting mechanism, while the supports are connected by ties and mounted on movable trolleys, the crane bridge and supports contain removable modular sections, and the bridge sections are connected by a finger connection, and the support sections by a bolted connection.

In one particular implementation example, each support contains one modular section.

In another particular embodiment, the crane bridge comprises at least one modular section.

In another particular example of implementation, the load-gripping mechanism is a hook.

In another particular embodiment, the hoisting mechanism is a winch.

In another particular example of implementation, the truss chord is made of a double corner welded into a box.

In another particular example of implementation, the crane contains a movement mechanism.

In another particular example of implementation, the cargo carriage contains metal or non-metal wheels.

In another particular example of implementation, the crane further comprises a service platform.

In another particular embodiment, the crane further comprises a cable drum.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 - illustrates a general view of the crane.

FIG. 2 illustrates a view of a support.

FIG. 3A illustrates a view of a crane runway.

FIG. 3B illustrates the upper chord attachment mechanism.

FIG. 3B illustrates the lower chord attachment mechanism.

IMPLEMENTATION OF THE USEFUL MODEL

FIG. 1 shows a general view of the claimed construction of a gantry crane (10). The crane (10) is of truss type and contains a trolley track formed by a bridge (110) mounted on supports (120, 130) moving along the crane runways. The supports (120, 130) consist of two legs connected by ties (122, 132) and are installed on the undercarriage (121, 131). On one of the trolleys, for example, on the trolley (131), a crane movement mechanism in the form of a geared motor is located. The bridge (110) consists of several sections, in particular, cantilever sections (111, 115), support sections (112, 114) and an intermediate section (113). One or all sections (111-115) can be modular and can be quickly removed to change the crane span and lift height.

The lifting height of the crane (10) is adjusted by means of supports (120, 130), each of which contains at least one modular section (1201, 1301), as shown in the example in FIG. 2. Fastening of the sections (1201, 1301) is carried out using the bolted connection (201). The height of the crane with one modular section (1201, 1301) allows you to adjust its height by a predetermined amount. With a different number of modular sections, the lifting height of the crane (10) may vary.

In the embodiment shown in FIG. 1 example of the construction of a crane (10) with the indicated number of bridge sections (111-115), the span length is 42 m and the lifting height is 25 m.When removing the modules of the sections (111-115) of the bridge (110) of the crane, the span size changes to 36, 32, 30, 25, 20, 16 m. When removing the modules of the crane supports, the lifting height becomes 10 m. It should be obvious to a person skilled in the art that the dimensions of the module sections and their number may vary depending on the required configuration of the crane (10). Various characteristics allow the crane to be efficiently operated on different construction sites by adjusting the span length and height. This allows you to save money on the purchase of new lifting equipment and increase the efficiency of the site for the installation of the crane.

FIG. 3A shows the support (112, 114) and intermediate sections (113) of the crane bridge (110). Sections (112-114) are fastened to each other in the upper and lower parts of the belt by means of fasteners (301, 302) shown in FIG. 3B-3C, which are connected using a finger connection. The mounts are a U-shaped fork with coaxial holes in the cheeks. An eyelet with one hole is inserted into the fork between the cheeks. An inserted finger holds the tab in the cheeks, providing a permanent connection.

This type of connection provides reliable fixation of the crane structure elements, reduces installation time and is less susceptible to weathering.

Also, this type of connection also provides a continuous plane for rolling the wheels of a cargo cart (140) containing a cabin (141) and a lifting device (142) made in the form of a load gripper (hook) or a load gripper (traverse, magnet, grab, etc.). NS.).

The load is lifted using a hoisting mechanism (143) mounted on the crane bridge (110). The rope pulley block of the lifting mechanism (143) is installed on a cargo cart (140), which moves along the bridge (110), supported by four wheels on the lower chords of the bridge (110). The movement mechanism (144) of the cargo carriage (140) sets it in motion with the help of a cable traction (winch). The travel mechanism (144) is installed in the bridge (110).

The chords of the truss structure of the crane bridge (110) are made of a double angle welded into a box, which provides additional stability when moving along the lower chord of the crane bridge (110). In this case, metal or non-metallic wheels are used on the cargo trolley (140), for example, made of polymeric material, which additionally make it possible to exclude wear of the belts and not to use rails. Also, the crane (10) may contain a service platform (134) and a cable drum (133) placed on the legs of the crane supports (130).

Claims (10)

1. A gantry crane modular truss structure, containing a bridge mounted on supports, forming a trolley track, a lifting mechanism, a movable trolley capable of moving along the belt of the bridge truss, containing a load-gripping mechanism connected to a lifting mechanism, while the supports are connected by ties and installed on the movable carts, crane bridge and legs contain removable modular sections, with the bridge sections being pinned and the supporting sections bolted. 2. The crane according to claim 1, characterized in that each support contains one modular section. 3. The crane according to claim 1, characterized in that the crane bridge comprises at least one modular section. 4. The crane according to claim 1, characterized in that the load-gripping mechanism is a load-gripping body or a load-gripping device. 5. The crane according to claim 1, characterized in that the lifting mechanism is a winch. 6. The crane according to claim 1, characterized in that the chords of the truss are made of a double corner welded into a box. 7. The crane according to claim 1, characterized in that it contains a movement mechanism. 8. The crane according to claim 1, characterized in that the load carriage contains metal or non-metal wheels. 9. The crane according to claim 1, further comprising a service platform. 10. The crane according to claim 1, further comprising a cable drum.

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