CN215479233U

CN215479233U - Main end beam mounting and positioning structure

Info

Publication number: CN215479233U
Application number: CN202122336081.0U
Authority: CN
Inventors: 刘欢; 李�诚; 葛保才
Original assignee: Henan Mine Crane Co Ltd
Current assignee: Henan Mine Crane Co Ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-01-11
Anticipated expiration: 2031-09-26

Abstract

The utility model discloses a main end beam mounting and positioning structure which comprises two end beams arranged in parallel, wherein a main beam is vertically arranged between the two end beams, two positioning columns are arranged on each end beam at intervals, the positioning columns on the two end beams are symmetrically arranged, the four positioning columns are arranged in a rectangular shape, positioning plates are respectively arranged on two sides of two ends of the main beam, positioning holes matched with the positioning columns are formed in the positioning plates, and the positioning plates are sleeved on the positioning columns and are fixedly connected with the end beams; the utility model is used for solving the problems that when a main beam and an end beam of a bridge crane are reassembled in the prior art, errors are easy to occur due to inaccurate positioning, and the expected precision cannot be reached, so that the normal operation of the crane is influenced.

Description

Main end beam mounting and positioning structure

Technical Field

The utility model relates to the technical field of hoisting equipment, in particular to a main end beam mounting and positioning structure.

Background

The framework of the single-beam bridge crane is mainly formed by combining a main beam and two end beams, when the single-beam bridge crane is assembled and manufactured in a hoisting equipment manufacturer, two end beam components are required to be placed on a track in parallel and fixed by a tool, then two ends of the main beam are lapped at the top of the middle of the two end beams, and the main beam and the end beams are fixed by connecting a plurality of groups of bolt sets. In the process of screwing the bolt, a series of parameters such as wheel track, track gauge and the like need to be measured and adjusted continuously, and finally the assembly precision requirement is met under the condition of screwing the bolt group. The assembled main beam and the assembled end beam are required to be disassembled and transported to a corresponding factory building of a user for assembly again, but due to the fact that the construction height is high, objects are large, installation is inconvenient, errors exist in the installed main beam and the installed end beam, the expected assembly precision requirement cannot be met, and normal use of the crane is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a main end beam mounting and positioning structure, which is used for solving the problem that in the prior art, when a main beam and an end beam of a bridge crane are reassembled, the positioning is inaccurate, errors are easy to occur, the expected precision cannot be achieved, and the normal operation of the crane is influenced.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a main end beam installation location structure, includes two parallel arrangement's end beam, is provided with the girder perpendicularly between two end beams, and the interval is provided with two reference columns on every end beam, and the reference column symmetry on two end beams sets up, and four reference columns are the rectangle and arrange, and the both sides at girder both ends are provided with the locating plate respectively, set up on the locating plate with reference column assorted locating hole, the locating plate cover establish on the reference column and with end beam fixed connection.

Optionally, the positioning plate is detachably and fixedly connected to the end beam through a locking bolt.

Optionally, four locking bolts are arranged on each positioning plate, and the four locking bolts are symmetrically arranged around the positioning columns.

Optionally, the positioning column is a hollow structure.

Optionally, the height of reference column is the same with the thickness of locating plate, and fixedly connected with limiting plate can be dismantled at the top of reference column, and the bottom laminating of limiting plate is at the top of locating plate.

The main end beam mounting and positioning structure has the following advantages:

(1) the positioning columns are matched with the positioning plates, the assembling position of the main beam can be rapidly determined, and the assembling precision of the main beam and the end beam can meet the requirement by fine adjustment subsequently.

(2) The hollow structure of the positioning column facilitates the welding of the positioning column on the end beam.

(3) The limiting plate can limit the movement of the positioning plate in the vertical direction, and plays a role in fixing the main beam when the locking bolt is not installed.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the connection between the positioning plate and the positioning column.

Fig. 3 is a schematic sectional view of the connection between the limiting plate and the positioning column.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1-3, a main end beam 1 mounting and positioning structure comprises two end beams 1 arranged in parallel, a main beam 2 is vertically arranged between the two end beams 1, two positioning columns 3 are arranged on each end beam 1 at intervals, the positioning columns 3 on the two end beams 1 are symmetrically arranged, the four positioning columns 3 are arranged in a rectangular shape, positioning plates 4 are respectively arranged on two sides of two ends of the main beam 2, positioning holes matched with the positioning columns 3 are formed in the positioning plates 4, and the positioning plates 4 are sleeved on the positioning columns 3 and are fixedly connected with the end beams 1. Every locating plate 4 can dismantle fixed connection on end beam 1 through four locking bolt 5, and four locking bolt 5 are the rectangle and arrange around reference column 3, can make between every locating plate 4 and the end beam 1 more firm like this, improve the stability that girder 2 and end beam 1 are connected.

The assembling steps of a manufacturing factory are that the positions of the main beam 2 and the end beam 1 are adjusted, the main beam and the end beam are fixed through the locking bolt 5, and then the mounting position of the positioning column 3 is determined according to the position of the positioning hole in the positioning plate 4. After the main beam 2 and the end beam 1 are well adjusted and fixed, the positioning column 3 with a hollow structure is placed in the positioning hole, and then the inner wall of the positioning column 3 is welded on the end beam 1. The positioning column 3 is accurate in installation and convenient to weld, and the installation efficiency of the positioning structure is improved.

The height of reference column 3 is the same with the thickness of locating plate 4, and fixedly connected with limiting plate 6 can be dismantled through fastening bolt 7 at the top of reference column 3, and the cross-section of limiting plate 6 is greater than the cross-section of reference column 3, and limiting plate 6 presses on locating plate 4. When the girder 2 and the end beam 1 are disassembled and transported to a factory building of a user factory for re-assembly, the locking bolt 5 is not assembled preferentially, and the limiting plate 6 is required to be utilized to limit the positioning plate 4 to move in the vertical direction at the moment, so that the effect of fixing the girder 2 is achieved, and the girder 2 and the end beam 1 are convenient to lift to the installation position.

The assembling and manufacturing sequence in a hoisting equipment manufacturing factory is that firstly, two end beam 1 parts are placed on a track in parallel and fixed by a tool, then two ends of a main beam 2 are put on the tops of the centers of the two end beams 1, then the wheel track, the track distance and the diagonal length of the wheels are continuously measured, whether treads of the four wheels are in one plane is checked, if errors exist, various gaskets are adjusted, until the assembling precision requirement is met, a positioning plate 4 is fixed on the end beams 1 through a locking bolt 5, and finally, a positioning column 3 is welded according to the position of the positioning hole.

The crane girder 2 and the end beam 1 that will make the assembly are unpack apart, transport the factory building of using the producer, then overlap locating plate 4 of girder 2 on the reference column 3 of end beam 1, accomplish the preliminary location of girder 2 and end beam 1, then fix limiting plate 6 on reference column 3 through fastening bolt 7, accomplish the preliminary fastening of girder 2 and end beam 1, carry the whole hoist of structure to the track of the two side walls of factory building on again, then finely tune the position of girder 2 and end beam 1, when satisfying the assembly required precision, fix locating plate 4 on end beam 1 through locking bolt 5. The mutual position relation between the main beam 2 and the end beam 1 is consistent with that during preassembling in a manufacturing factory during field installation and assembly, and the phenomenon that the crane gnaws the rail in the using process and influences the normal operation of the crane is avoided.

The embodiments described above are only a part of the embodiments of the present invention, and not all of them. All other embodiments that can be obtained by a person skilled in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention.

Claims

1. The utility model provides a main end beam installation location structure, includes two parallel arrangement's end beam, is provided with girder, its characterized in that perpendicularly between two end beams: two positioning columns are arranged on each end beam at intervals, the positioning columns on the two end beams are symmetrically arranged, the four positioning columns are arranged in a rectangular mode, positioning plates are arranged on two sides of two ends of the main beam respectively, positioning holes matched with the positioning columns are formed in the positioning plates, and the positioning plates are sleeved on the positioning columns and are fixedly connected with the end beams.

2. The main end beam mounting and positioning structure of claim 1, wherein: the locating plate is detachably and fixedly connected to the end beam through a locking bolt.

3. The main end beam mounting and positioning structure of claim 2, wherein: four locking bolts are arranged on each positioning plate and are symmetrically arranged relative to the positioning columns.

4. The main end beam mounting and positioning structure of claim 1, wherein: the positioning column is of a hollow structure.

5. The main end beam mounting and positioning structure according to claim 4, wherein: the height of reference column is the same with the thickness of locating plate, and fixedly connected with limiting plate can be dismantled at the top of reference column, and the bottom laminating of limiting plate is at the top of locating plate.