Frame structure of large tundish car

Abstract

The utility model discloses a frame, in particular to a frame structure of a large tundish car, which solves the problems of large occupied space, heavy weight and high cost of the existing frame. The low legs and the high legs are located at the front end and the rear end and connected, the cross beam is connected between the low legs and the high legs at the front end and the rear end, and the overall axial length of a frame is 65%-75% of the axial length of the tundish. The supporting device is extremely simple in structure, easy to transform, small in occupied space, low in cost, light in weight and capable of effectively supporting the large tundish.

Description

Technical Field

[0001] The utility model relates to a vehicle frame, in particular to a large-scale tundish vehicle frame structure. Background Art

[0002] During the continuous casting process, the tundish truck must be able to stably and reliably carry the tundish from the baking position to the pouring position. After reaching the pouring position, the tundish truck must also be able to fine-tune the tundish's vertical and horizontal position. Therefore, the tundish truck is equipped with a frame, a lifting mechanism, and a transverse mechanism. Nowadays, in order to improve continuous casting efficiency and reduce the number of tundish replacements, the tundishes are getting bigger and bigger. The length of a large tundish can reach about 15 to 20 meters, which leads to the tundish truck frame becoming longer and longer. Figure 3 The existing frame length is usually comparable to the length of the intermediate tank. An auxiliary support beam and a matching auxiliary wheel set are also provided in the middle of the frame to ensure sufficient support and strength. This not only increases production costs, but also the space in the continuous casting workshop is limited. It is often difficult to meet the installation and operation space of the large frame, or it will squeeze the installation space of other equipment. Summary of the Invention

[0003] The purpose of the present invention is to solve the above technical problems and provide a large tundish tank car frame structure which is extremely simple in structure, easy to modify, occupies a small space, has low cost and light weight, and can effectively support large tundishes.

[0004] The frame structure of the utility model comprises a low leg and a high leg connected at the front and rear ends, and a crossbeam connecting the low leg and the high leg at the front and rear ends. The overall axial length of the frame is 65-75% of the axial length of the tundish.

[0005] Furthermore, two intermediate tank support points are symmetrically provided with the midpoints of the two track gauges corresponding to the high leg and the low leg as the center line.

[0006] Furthermore, the spacing between the two tundish support points is 40% to 50% of the track gauge. To address the problems with existing tundish car frames, the inventors considered shortening the frame length while maintaining the track gauge. Based on the principles of engineering mechanics, the maximum bending moment can be reduced accordingly by moving the support points at both ends inward a certain distance. Therefore, based on the axial length of the tundish, the overall axial length of the frame is shortened to 65-75% of the axial length of the tundish. Furthermore, while shortening the frame length, the support points of the tundish on the low leg are further expanded outward. This expansion allows the load to be placed as close to the support as possible, thereby reducing the bending moment. Specifically, two tundish support points are symmetrically arranged with the two track gauge midpoints corresponding to the high and low legs as the centerline. The spacing between the two tundish support points is 40% to 50% of the track gauge. These improvements not only shorten the frame length and save space, but also eliminate the existing auxiliary support beams and the accompanying auxiliary wheel sets, reducing the weight of the frame.

[0007] The utility model has an extremely simple structure, is easy to transform, occupies a small space, has a low cost and is light in weight, and can effectively support a large intermediate tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a top view of the utility model.

[0009] Figure 2 It is a side view of the utility model.

[0010] Figure 3 This is a top view of the existing tundish car frame.

[0011] Among them, 1-low leg; 2-high leg; 3-cross beam; 4-auxiliary wheel group; 5-auxiliary support beam; 6-support point; 7-middle tank; 8-wheel; A-center line of high and low leg tracks. DETAILED DESCRIPTION

[0012] The present invention will be further explained below with reference to the accompanying drawings:

[0013] See also Figure 1 and Figure 2 The frame of the present invention is equipped with a low leg 1 and a high leg 2 at both ends. The low leg 1 and the high leg 2 are connected to form the front and rear ends of the frame. The low legs 1 and the high legs 2 at the front and rear ends are connected by a crossbeam 3. No auxiliary support beams or auxiliary wheel sets are provided. The axial length of the intermediate tank is L1, and the overall axial length L2 of the above-mentioned frame is 65-75% of the axial length of the intermediate tank L1. The low leg 2 is symmetrically provided with two intermediate tank support points 6, with the midpoint of the line connecting the axles of the left and right wheels 8 as the axial centerline A. The distance L4 between the two intermediate tank support points 6 accounts for 40% to 50% of the track spacing L3.

[0014] See also Figure 1 and Figure 2 Taking a 13,750mm long tundish as an example, the frame design dimensions of this utility model are 9,550x5,600 (track gauge). The distance L4 between the two tundish support points has been expanded from 1,000mm to 2,400mm. The tundish axial length L1 is 13,750mm, and the overall axial length L2 of the frame is designed to be 10,150mm. After installing the tundish, the existing workshop space is sufficient, with room for other equipment. The frame's strength and rigidity meet operational requirements, and the vehicle's weight has been reduced by approximately 20%. Customer feedback has been excellent.

Claims

1. A large tundish tank car frame structure, comprising a low leg and a high leg connected at the front and rear ends, and a crossbeam connecting the low leg and the high leg at the front and rear ends, characterized in that: The overall axial length of the frame is 65-75% of the axial length of the tundish. Two tundish support points are symmetrically arranged with the midpoints of the two track gauges corresponding to the high leg and the low leg as the center line. The distance between the two tundish support points is 40%~50% of the track gauge.

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