CN204369429U - A kind of hoisting crane adjustable main side beam joint device - Google Patents

Abstract

The utility model discloses an adjustable main end beam connecting device of a crane, which comprises a main beam and an end beam. The main beam is provided with a connecting plate, which is pressed on the end beam. Connected, the mounting hole where the main beam connecting plate matches the set bolt group is in the shape of a waist hole, and the lower side of the main beam connecting plate is also provided with two positioning plates arranged in parallel with the end beam, on which there are several Adjusting bolts, the positioning plates are respectively located on both sides of the end beam, and the lower ends of the adjusting bolts are pressed against the two sides of the end beam. By adjusting the tightness of the adjusting bolts on both sides of the device, the position of the end beam can be adjusted left and right, so that the wheel of the adjustment cart coincides with the center line of the guide rail. The structure is simple and the operation is convenient. Adjust the complex process of installing rail beams and guide rails and replace parts and other issues, optimize the production process, reduce the installation cycle, improve the installation efficiency, and reduce the production cost of the enterprise.

Description

An adjustable main end beam connection device for a crane

technical field

The utility model relates to a bridge crane, in particular to a connecting device for adjusting the relative positions of a main girder and an end girder of the bridge crane.

Background technique

Bridge cranes are widely used in indoor and outdoor industrial and mining enterprises, iron and steel chemical industry, railway transportation, port terminals and logistics turnover and other departments and places. It is generally composed of a lifting trolley and a bridge frame for the trolley. The bridge frame includes rail-bearing beams erected on both sides of the span on the factory building or construction site. There are I-shaped guide rails on the rail-bearing beams. The beam reciprocates in a straight line along the I-shaped guide rail, and the main beam carrying the lifting trolley is erected on the beams at both ends. The main beam and the end beams are generally connected by welding or bolts. During the installation process of the crane, the span deviation of the cart track is too large or too small due to the manufacture and installation of the rail-bearing beam, which causes problems such as leaning on the rail, gnawing on the rail or failing to install the cart wheel during operation, which brings problems to production and installation. inconvenient. However, the main end beams on the market are welded or bolted, and the relative positions of the main beam and the end beam cannot be adjusted after the connection and installation. At present, the research on the connection of the main end beam mainly focuses on the stability of the connection between the two and the positioning device of the two during the installation process. There is no structure for adjusting the position of the main end beam after installation.

Contents of the invention

The purpose of the utility model is to provide an adjustable connecting device for the main end beam of a crane aiming at the deficiencies of the prior art.

The technical scheme of the utility model is:

An adjustable main end beam connection device for a crane, including a main beam and an end beam 2, the main beam is provided with a connecting plate 1, which is pressed on the end beam 2, and the connecting plate 1 and the end beam 2 are connected by a set of fastening bolts 3 connected, the mounting hole of the main beam connecting plate 1 and the set bolt group 3 is in the shape of a waist hole, and the lower side of the main beam connecting plate 1 is also provided with two positioning plates 6 arranged in parallel with the end beam 2 , there are several adjusting bolts 4 arranged on it, the positioning plates 6 are located on both sides of the end beam 2 respectively, and the lower ends of the adjusting bolts 4 press against the side of the end beam 2 .

Further, preferably, the positioning plate 6 is provided with 2 to 5 adjusting bolts 4 .

Furthermore, preferably, four adjusting bolts 4 are arranged on the positioning plate.

Furthermore, in order to improve the stability of the adjusting bolt 4, the positioning plate 6 is integrally formed with the connecting plate 1 of the main beam.

The utility model has the advantages of:

The utility model is an adjustable main end beam connection device for a crane. Adjusting bolts 4 connected with the main beam are arranged on both sides of the end beam 2. After the main beam and the end beam 2 have been bolted in the installation process, the span of the end beam 2 appears. When the crane is too large or too small, or there are problems such as leaning on the rail or gnawing on the rail during the operation of the crane, the position of the end beam 2 can be adjusted left and right by adjusting the tightness of the adjusting bolts 4 on both sides, so that the center line of the cart wheel 5 is in line with the The center line of the track coincides, the structure is simple, and the operation is convenient. It solves the problems of readjusting and installing complex processes such as rail beams and guide rails and replacing parts when the above problems occur in conventional cranes. It optimizes the production process, reduces the installation period, and improves installation. efficiency and reduce production costs.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the front view of embodiment main end beam connecting device;

Fig. 2 is a sectional view of plane A-A in Fig. 1;

Fig. 3 is the top view of embodiment main end beam connecting device;

Among them: 1-connecting plate 2-end beam 3-tightening bolt group 4-adjusting bolt 5-wheel 6-positioning plate

Detailed ways

The adjustable connecting device of the main end beam of the present invention will be specifically described below in conjunction with the embodiments and the accompanying drawings.

Example:

An adjustable main end beam connection device for a crane, its structure is shown in Figure 1-3, including a main beam and an end beam 2, the main beam is provided with a connecting plate 1, and the connecting plate 1 of the main beam is pressed on the end beam 2, Both the connecting plate 1 and the end beam 2 are provided with mounting holes, and the connecting plate 1 and the end beam 2 are connected through the mounting holes by the fastening bolt group 3. In order to improve the connection stability between the connecting plate 1 and the end beam 2, this In the example, there are 6 groups of bolts for the set bolt group 3, which are respectively located on both sides of the contact part between the connecting plate 1 and the end beam 2, with 3 groups on each side. The installation hole of the main beam connecting plate 1 and the set bolt group 3 is in the shape of a waist hole; the lower side of the connecting plate 1 is also provided with two positioning plates 6 arranged in parallel with the end beam 2, on which there are A plurality of adjusting bolts 4, the positioning plates 6 are respectively located on the left and right sides of the end beam 2, and the lower ends of the adjusting bolts 4 press against the side of the end beam 2 after the installation is completed. In this example, in order to improve the stability of the adjusted position of the end beam 2 , the positioning plate 6 is integrally formed with the connecting plate 1 of the main beam, and four adjusting bolts 4 are arranged on the positioning plate 6 on each side.

If it is found that the span of the end beam is too large after the installation of the main beam and the end beam 2, loosen the 6 sets of fastening bolts between the main beam connecting plate 1 and the end beam 2, and rotate inward to tighten the bolts on the positioning plate 6 located on the outside. 4 adjusting bolts 4, rotate outward to loosen the adjusting bolts 4 on the positioning plate 6 located on the inner side, and the end beam 2 moves inward until the cart wheel 5 coincides with the center line of the guide rail. During the movement of the end beam 2, tighten The fixed bolt group 3 can move along the waist-shaped mounting hole, use the torque wrench to fasten the mounting bolts of the main and end beams to meet the bolt pre-tightening force requirement, that is, to complete the adjustment of the span deviation. In this example, the span adjustment range of the crane is S± 20mm.

It can be seen from the above embodiments that the main end beam adjustable connection device of the present invention has a simple structure and is easy to adjust, which can avoid the need to readjust and install the supporting rail beams and guide rails when the conventional crane is too small after the end beam span is too large Process, or replacement of parts and other issues, optimize the production process, reduce the installation cycle, improve installation efficiency, and reduce enterprise production costs.

Of course, the above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to allow people familiar with this technology to understand the content of the present utility model and implement it accordingly, and cannot limit the protection scope of the present utility model with this. All modifications made according to the spirit of the main technical solutions of the utility model shall fall within the protection scope of the utility model.

Claims (4)

1. An adjustable main end beam connection device for a crane, comprising a main beam and an end beam (2), the main beam is provided with a connecting plate (1), which is pressed on the end beam (2), and the connecting plate (1) It is connected with the end beam (2) by the set bolt group (3), and it is characterized in that the mounting hole of the main beam connecting plate (1) matched with the set bolt set (3) is in the shape of a waist hole, and the There are also two positioning plates (6) arranged parallel to the end beam (2) on the lower side of the main beam connecting plate (1), on which there are several adjusting bolts (4), and the positioning plates (6) are respectively located at the end beams (2). On both sides of the beam (2), the lower end of the adjusting bolt (4) presses against the side of the end beam (2). 2 . The adjustable main end beam connection device of a crane according to claim 1 , characterized in that 2 to 5 adjusting bolts ( 4 ) are arranged on the positioning plate ( 6 ). 3 . 3. The adjustable main end beam connection device of a crane according to claim 1, characterized in that, the positioning plate (6) is provided with four adjusting bolts (4). 4. The adjustable main end beam connecting device of a crane according to claim 1, 2 or 3, characterized in that the positioning plate (6) is integrally formed with the main beam connecting plate (1).