CN211895734U - Flexible trolley frame of crane - Google Patents

Abstract

The utility model discloses a flexible trolley frame of a crane, which comprises two end beams and a telescopic crossbeam, wherein the two end beams are arranged in parallel, the telescopic crossbeam is arranged between the two end beams, both ends of the telescopic crossbeam are fixedly connected with rotating discs, both sides of the lower parts of the two end beams are provided with wheel grooves, and the opposite sides of the two end beams are correspondingly provided with placing structures for accommodating the rotating discs; the placing structure comprises an end plate, the end plate is fixedly connected with the end beam, the surface of the end plate is provided with a U-shaped groove for accommodating the rotating disc, the notch of the U-shaped groove is vertically upward, the surface of the end plate is provided with a sealing plate for limiting the rotating disc in the U-shaped groove, and the surface of the sealing plate is provided with a through groove for the telescopic cross beam to pass through. The utility model discloses convenient dismantlement and transportation convert traditional rigid connection into flexonics, reduce work load, the dolly moves more steadily, safety, adopts telescopic crossbeam simultaneously, can adjust the span.

Description

Flexible trolley frame of crane

Technical Field

The utility model relates to a hoist technical field specifically is a flexible trolley frame of hoist.

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. The main working unit of the crane is a trolley which consists of a hoisting mechanism, a trolley running mechanism and a trolley frame, wherein the trolley frame is a frame for supporting and installing the hoisting mechanism and the trolley running mechanism and is a metal structure for bearing and transmitting hoisting load. The conventional trolley frame is a welding structure and mainly comprises two end beams and a cross beam welded between the two end beams, and parts are difficult to accurately position in the welding process, cannot be disassembled after welding and are inconvenient to transport;

the cross beam is fixed by adopting a bolt connection mode, for example, the utility model with the authorization publication number of CN 203021186U discloses a trolley frame, which comprises an end beam, a cross beam, a trolley frame platform and a main pulley cross beam; the cross beam, the trolley frame platform and the main pulley cross beam are all arranged between the two end beams, and the main pulley cross beam is connected with the end beams through bolts;

no matter adopt welding mode or bolted connection mode, all be rigid connection, if the condition that two track height are uneven appears, and the jack-up goods leads to the change of crane trolley focus to lead to the wheel when going on the track, initiative and driven wheel will not be used in on the guide surface simultaneously completely, there is a wheel very little wheel pressure to appear like this, zero wheel pressure even, and all the other three wheels will share too much wheel pressure, promptly "three legs" phenomenon, thereby will cause the crane can not normal operating, dolly and crane span structure cause the damage, make the use reliability and the life reduction of crane.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a flexible trolley frame of hoist, convenient dismantlement and transportation convert traditional rigid connection into flexonics, reduce work load, the dolly operation is more steady, safe, adopts telescopic beam simultaneously, can adjust the span, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a flexible trolley frame of a crane comprises two end beams and a telescopic cross beam which are arranged in parallel, wherein the telescopic cross beam is arranged between the two end beams, two ends of the telescopic cross beam are fixedly connected with rotating discs, two sides of the lower parts of the two end beams are respectively provided with a wheel groove, and opposite side surfaces of the two end beams are respectively and correspondingly provided with a placing structure for accommodating the rotating discs;

the placing structure comprises an end plate, the end plate is fixedly connected with the end beam, a U-shaped groove for accommodating the rotating disc is formed in the surface of the end plate, a notch of the U-shaped groove is vertically upward, a sealing plate for limiting the rotating disc in the U-shaped groove is arranged on the surface of the end plate, and a through groove for the telescopic cross beam to penetrate through is formed in the surface of the sealing plate.

Preferably, two ends of each end beam are connected with rail sweeping plates for sweeping foreign matters on the trolley rail through bolts.

Preferably, the surface of the rail sweeping plate, which is far away from the end beam, is provided with a laser range finder.

Preferably, the telescopic crossbeam is composed of two sections of rectangular steel pipes, and the two sections of rectangular steel pipes are movably sleeved.

Preferably, the end plate is fixed to the web of the end beam by bolts and nuts.

Preferably, the diameter of the lower semicircular groove of the U-shaped groove is larger than that of the rotating disc.

Preferably, the sealing plate is welded to the plate surface of the end plate.

Compared with the prior art, the beneficial effects of the utility model are that: this flexible trolley frame of hoist, through setting up the rolling disc and placing the structure, flexible crossbeam can be in placing the swing of structure interior small range through the rolling disc at its both ends, two end beams of flexonics, thereby four wheels can both contact with the track when making the dolly move on the track, avoid appearing "three legs" phenomenon, can make the dolly move more steadily, safety, adopt flexible crossbeam simultaneously, can adjust the span, convert traditional rigid connection into flexonics, reduce work load, and convenient dismantlement and transportation.

Drawings

Fig. 1 is a top view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a left side view of the present invention;

FIG. 4 is a cross-sectional view of the rotating disc and the placing structure of the present invention;

fig. 5 is a top view of the rotating disc and the placing structure of the present invention.

In the figure: 1 end beam, 101 sweep rail board, 102 laser range finder, 2 end plates, 201U-shaped groove, 3 telescopic cross beam, 4 rolling disc, 5 wheel groove, 6 shrouding.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a flexible trolley frame of a crane comprises two end beams 1 and a telescopic cross beam 3 which are arranged in parallel, wherein the telescopic cross beam 3 is arranged between the two end beams 1, the telescopic cross beam 3 consists of two sections of rectangular steel pipes, the two sections of rectangular steel pipes are movably sleeved, the telescopic cross beam 3 is adopted, the span between the two end beams 1 can be adjusted, two ends of the telescopic cross beam 3 are fixedly connected with rotating discs 4, two sides of the lower parts of the two end beams 1 are respectively provided with a wheel groove 5 for mounting a wheel group, and opposite side surfaces of the two end beams 1 are respectively and correspondingly provided with a placing structure for accommodating the rotating discs 4;

the placing structure comprises an end plate 2, the end plate 2 is fixedly connected with an end beam 1, the end plate 2 is fixed on a web plate of the end beam 1 through bolts and nuts, a U-shaped groove 201 for accommodating a rotating disc 4 is formed in the surface of the end plate 2, a notch of the U-shaped groove 201 is vertically upward, the diameter of a lower semicircular groove of the U-shaped groove 201 is larger than that of the rotating disc 4, a sealing plate 6 for limiting the rotating disc 4 in the U-shaped groove 201 is arranged on the surface of the end plate 2, the sealing plate 6 is welded on the surface of the end plate 2, and a through groove for allowing the telescopic cross beam 3 to pass through is formed in;

the rotating discs 4 are arranged at the two ends of the telescopic cross beam 3, the rotating discs 4 can swing in the U-shaped groove 201 and are flexibly connected with the two end beams 2, so that four wheels can be in contact with a rail when the trolley runs on the rail, the phenomenon of three legs is avoided, the trolley can run more stably and safely, the traditional rigid connection is converted into the flexible connection, the rotating discs 4 at the two ends of the telescopic cross beam 3 are only required to be placed in the U-shaped groove 201 during installation, and the workload is reduced;

the both ends of end beam 1 all have through bolted connection and are used for cleaning the sweep rail board 101 of dolly track on the foreign matter, clean the foreign matter on the track, avoid the wheelset to roll the accident that appears, sweep the face that rail board 101 kept away from end beam 1 and be equipped with laser range finder 102 for the distance to both ends extreme position when detecting the dolly operation avoids appearing the problem of colliding.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides a flexible trolley frame of hoist which characterized in that: the telescopic beam comprises two end beams (1) and a telescopic beam (3) which are arranged in parallel, wherein the telescopic beam (3) is arranged between the two end beams (1), two ends of the telescopic beam (3) are fixedly connected with rotating discs (4), two wheel grooves (5) are arranged on two sides of the lower part of the two end beams (1), and opposite side surfaces of the two end beams (1) are correspondingly provided with placing structures for accommodating the rotating discs (4);

the placing structure comprises an end plate (2), the end plate (2) is fixedly connected with an end beam (1), the surface of the end plate (2) is provided with a U-shaped groove (201) for accommodating a rotating disc (4), the groove opening of the U-shaped groove (201) is vertically upward, the surface of the end plate (2) is provided with a sealing plate (6) for limiting the rotating disc (4) in the U-shaped groove (201), and the surface of the sealing plate (6) is provided with a through groove for the telescopic cross beam (3) to pass through.

2. A crane flexible trolley frame as claimed in claim 1, wherein: and two ends of each end beam (1) are connected with rail sweeping plates (101) used for sweeping foreign matters on the trolley track through bolts.

3. A crane flexible trolley frame as claimed in claim 2, wherein: and the surface of the rail sweeping plate (101) far away from the end beam (1) is provided with a laser range finder (102).

4. A crane flexible trolley frame as claimed in claim 1, wherein: the telescopic crossbeam (3) is composed of two sections of rectangular steel pipes, and the two sections of rectangular steel pipes are movably sleeved.

5. A crane flexible trolley frame as claimed in claim 1, wherein: the end plate (2) is fixed on a web plate of the end beam (1) through bolts and nuts.

6. A crane flexible trolley frame as claimed in claim 1, wherein: the diameter of a lower semicircular groove of the U-shaped groove (201) is larger than that of the rotating disc (4).

7. A crane flexible trolley frame as claimed in claim 1, wherein: the closing plate (6) is welded on the plate surface of the end plate (2).

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