Molten iron car foundation brake device capable of effectively avoiding friction of wheel axle

Abstract

The utility model discloses a molten iron car foundation brake device capable of effectively avoiding friction of a wheel axle, which comprises a right combined brake assembly, a fixed lever assembly, a movable lever assembly, a left combined brake assembly, a lower pull rod assembly, an upper pull rod assembly, a fixed lever support and a brake shoe hanger, the right combined brake assembly is arranged on the left side of the middle wheel set and the left side of the right end wheel set respectively. The left combined brake assembly is arranged on the right side of the middle wheel set and the right side of the left end wheel set. The fixed lever assembly is arranged on the right combined brake assembly and the left combined brake assembly on the left side and the right side of the middle wheel group; one end of the lower pull rod assembly is connected with the lower end of the fixed lever assembly, and the other end of the lower pull rod assembly is connected with the right combined brake assembly or the left combined brake assembly; the upper pull rod assembly is arranged at the upper end of the fixed lever assembly; the upper end of the lever of the fixed lever assembly is bent upwards by a certain angle, so that friction between the pull rod of the upper pull rod assembly and the wheel axle is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical equipment, and further belongs to the technical field of molten iron transportation equipment, and specifically relates to a molten iron car basic braking device which has simple structure, reliable operation, and easy operation and can effectively avoid friction with wheel axles. Background Art

[0002] The transportation of molten iron is one of the key process transportation of metallurgical enterprises. With the continuous improvement of metallurgical production technology, metallurgical enterprises are developing towards large-scale development. The molten iron tank car is an important tool for the transportation of molten iron from ironmaking to steelmaking in metallurgical enterprises. The purpose of the molten iron tank car is to transport the molten iron in the ironmaking workshop to the cast iron machine to cast into iron blocks, or to transport the molten iron to the steelmaking workshop to pour it into the iron-mixing furnace for storage, or to directly inject the molten iron into the steelmaking furnace for steelmaking. At present, there are two main structures of domestic molten iron tank cars: one is an open-type molten iron tank car, and the other is a torpedo tank molten iron tank car. The ZT140 open-type molten iron tank car is mainly composed of a molten iron tank, a car body, a coupler buffer device, a bogie and a braking system. The braking system can be subdivided into three parts: air brake, basic brake and hand brake. The ZT140 molten iron car uses wheels with a diameter of Φ650mm. The basic brake device is installed on the bogie. The height of the bogie is relatively low compared to railway bureau vehicles. This means that the short end of the lever of the basic brake device can only be bent upward at a certain angle to install the upper pull rod of the basic brake device between the wheel axle and the center beam of the bogie frame.

[0003] During the use of the ZT140 molten iron car, the upper tie rod, lever, lower tie rod and round pin hole of its basic braking device are worn to varying degrees. The tie rod joint is deformed, causing the two levers to collapse. The gap between the upper tie rod connecting the two levers and the wheel axle is reduced or even disappears, causing the upper tie rod to rub against the wheel axle of the middle wheel group after loading the molten iron. When the wear of the upper tie rod reaches 15 mm, it is very easy for the upper tie rod to break, causing the basic braking device to fail, and then causing a serious equipment accident.

[0004] Therefore, the key to solve this problem is to research and develop a molten iron car basic brake device which has simple structure, reliable operation, easy operation and can effectively avoid friction of wheel axles. Utility Model Content

[0005] The utility model aims to provide a molten iron car basic brake device which has simple structure, reliable operation and easy operation and can effectively avoid friction of wheel axles.

[0006] The purpose of the utility model is achieved in this way, including a right combined brake component, a fixed lever component, a floating lever component, a left combined brake component, a lower pull rod component, an upper pull rod component, a fixed lever support, and a brake shoe support. The right combined brake component has 2 sets, which are respectively arranged on the left side of the middle wheel group and the right end wheel group; the left combined brake component has 2 sets, which are respectively arranged on the right side of the middle wheel group and the left end wheel group; the floating lever component has 4 sets, which are respectively arranged on the right combined brake component and the left combined brake component; the fixed lever support is arranged on the right end of the right On the combined brake assembly; there are 8 sets of brake shoe supports, which are respectively arranged on the right combined brake assembly and the left combined brake assembly; the fixed lever assembly is arranged on the right combined brake assembly and the left combined brake assembly on the left and right sides of the middle wheel group; one end of the lower pull rod assembly is connected to the lower end of the fixed lever assembly, and the other end is connected to the right combined brake assembly or the left combined brake assembly; an upper pull rod assembly is arranged on the upper end of the fixed lever assembly; the upper end of the lever of the fixed lever assembly is bent upward at a certain angle to avoid friction between the pull rod of the upper pull rod assembly and the wheel axle.

[0007] The utility model is composed of a right combined brake component, a fixed lever component, a floating lever component, a left combined brake component, a lower pull rod component, an upper pull rod component, a fixed lever support, and a brake shoe support. The upper end of the lever is bent upward by 30 degrees, thereby increasing the distance between the upper pull rod and the wheel axle, thereby avoiding friction between the upper pull rod and the wheel axle; at this time, the upper clearance of the upper pull rod is 30mm, the clearance between the lower part of the upper pull rod and the wheel axle is 60mm, and the spring compression amount is about 40mm when the vehicle is heavy, and the lowering amount of the upper pull rod is also 40mm when the vehicle is heavy, so that the clearance between the lower part of the upper pull rod and the wheel axle can be ensured to be about 20mm when the vehicle is heavy, thereby avoiding friction between the pull rod and the wheel axle.

[0008] When the utility model is implemented, the gap between the bogie center beam and the upper rod is measured first, the gap between the upper rod and the wheel axle is measured, and then the lever is disassembled, and the bending part of the lever is heat-adjusted. When the lever is adjusted to be bent upward by 30 degrees, it can be assembled and used.

[0009] The utility model further adjusts the angle of the upper end of the lever upward to 30 degrees, thereby eliminating the phenomenon of the upper pull rod rubbing against the wheel axle, breaking the barrier of replacing the entire basic brake device due to wear of a single part, saving maintenance costs, and at the same time reducing maintenance frequency and workers' labor intensity, thereby improving production efficiency.

[0010] The utility model has the advantages of simple structure, reliable operation and convenient operation, and can effectively prevent the upper pull rod from rubbing against the wheel axle. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 for Figure 1 The left side schematic diagram;

[0013] Figure 3 for Figure 1 Schematic diagram from top view;

[0014] Figure 4 It is a schematic diagram of the lever of the utility model;

[0015] Figure 5 for Figure 4 The left side schematic diagram;

[0016] Figure 6 It is the original lever schematic diagram;

[0017] Figure 7 for Figure 6 Left view schematic diagram.

[0018] In the figure: 1-right combined brake component, 101-brake beam, 2-fixed lever component, 201-lever, 202-pin shaft I, 203-pin shaft II, 3-traveling lever component, 4-left combined brake component, 5-lower tie rod component, 6-upper tie rod component, 601-upper tie rod, 602-tie rod joint, 7-fixed lever support, 8-brake shoe support, 9-middle wheel group, 901-wheel axle, 10-left end wheel group, 11-right end wheel group, 12-bogie, 13-original lever. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited in any way. Any changes made based on the teachings of the present invention fall within the protection scope of the present invention.

[0020] like Figures 1 to 7As shown, the utility model comprises a right combined brake component 1, a fixed lever component 2, a floating lever component 3, a left combined brake component 4, a lower pull rod component 5, an upper pull rod component 6, a fixed lever support 7, and a brake shoe support 8. The right combined brake component 1 has 2 sets, which are respectively arranged on the left side of the middle wheel group 9 and the right end wheel group 11; the left combined brake component 4 has 2 sets, which are respectively arranged on the right side of the middle wheel group 9 and the left end wheel group 10; the floating lever component 3 has 4 sets, which are respectively arranged on the right combined brake component 1 and the left combined brake component 4; the fixed lever support 7 is arranged on the right end of the right combined brake component The brake shoe supports 8 are 8 sets in total, which are respectively arranged on the right combined brake assembly 1 and the left combined brake assembly 4; the fixed lever assembly 2 is arranged on the right combined brake assembly 1 and the left combined brake assembly 4 on the left and right sides of the middle wheel group 9; one end of the lower pull rod assembly 5 is connected to the lower end of the fixed lever assembly 2, and the other end is connected to the right combined brake assembly 1 or the left combined brake assembly 4; an upper pull rod assembly 6 is arranged on the upper end of the fixed lever assembly 2; the upper end of the lever of the fixed lever assembly 2 is bent upward at a certain angle to avoid friction between the upper pull rod of the upper pull rod assembly 6 and the wheel axle.

[0021] The fixed lever component 2 includes a lever 201, a pin shaft I 202, and a pin shaft II 203; the lower middle portion of the lever 201 is connected to the right combined brake component 1 or the left combined brake component 4 via the pin shaft II 203; the lower end of the lever 201 is connected to the lower pull rod component 5 via the pin shaft I 202; the upper end of the lever 201 is connected to the upper pull rod component 6 via the pin shaft I 202.

[0022] The upper end of the lever 201 is bent upward by 30°.

[0023] The upper end of the lever 201 is bent by heating.

[0024] The lever 201 is made of Q235-B steel plate.

[0025] The working principle and working process of this utility model:

[0026] The utility model comprises a right combined brake component 1, a fixed lever component 2, a floating lever component 3, a left combined brake component 4, a lower pull rod component 5, an upper pull rod component 6, a fixed lever support 7, and a brake shoe support component 8. The upper end of the lever 201 is bent upward by 30°, thereby increasing the distance between the upper pull rod 601 and the wheel axle 901, and avoiding friction between the upper pull rod 601 and the wheel axle 901; at this time, the upper clearance of the upper pull rod 601 is 30mm, and the clearance between the lower side of the upper pull rod 601 and the wheel axle 901 is 60mm, while the spring compression amount is about 40mm when the vehicle is heavy, and the lowering amount of the upper pull rod 601 is also 40mm when the vehicle is heavy, so that the clearance between the lower side of the upper pull rod 601 and the wheel axle 901 is about 20mm when the vehicle is heavy, and avoiding friction between the upper pull rod 601 and the wheel axle 901.

[0027] When the utility model is implemented, first measure the gap between the bogie center beam and the upper rod 601, measure the gap between the upper rod 601 and the wheel axle 901, then remove the lever 201, heat-adjust the bending part of the lever 201, and assemble and use it when it is adjusted to be bent upward by 30°.

Claims

1. A basic brake device for a molten iron car capable of effectively avoiding friction of wheel axles, comprising a right combined brake component (1), a fixed lever component (2), a floating lever component (3), a left combined brake component (4), a lower pull rod component (5), an upper pull rod component (6), a fixed lever support (7), and a brake shoe support (8), wherein the right combined brake component (1) comprises two sets, which are respectively arranged on the left side of a middle wheel group (9) and a right end wheel group (11); the left combined brake component (4) comprises two sets, which are respectively arranged on the right side of the middle wheel group (9) and the left end wheel group (10); the floating lever component (3) comprises four sets, which are respectively arranged on the right combined brake component (1) and the left combined brake component (4); the fixed lever support (7) is arranged on the right end of the right combined brake component (1); the brake shoe support (8) comprises eight sets, which are respectively arranged on the right combined brake component (1) and the left combined brake component (4); and the invention is characterized in that: The fixed lever assembly (2) is arranged on the right combined brake assembly (1) and the left combined brake assembly (4) on the left and right sides of the middle wheel assembly (9); one end of the lower pull rod assembly (5) is connected to the lower end of the fixed lever assembly (2), and the other end is connected to the right combined brake assembly (1) or the left combined brake assembly (4); an upper pull rod assembly (6) is arranged on the upper end of the fixed lever assembly (2); the upper end of the lever of the fixed lever assembly (2) is bent upward at a certain angle to avoid friction between the upper pull rod of the upper pull rod assembly (6) and the wheel axle.

2. The molten iron car foundation brake device capable of effectively avoiding friction on the wheel axle according to claim 1 is characterized in that: The fixed lever component (2) includes a lever (201), a pin shaft I (202), and a pin shaft II (203); the lower middle portion of the lever (201) is connected to the right combined brake component (1) or the left combined brake component (4) via the pin shaft II (203); the lower end of the lever (201) is connected to the lower pull rod component (5) via the pin shaft I (202); and the upper end of the lever (201) is connected to the upper pull rod component (6) via the pin shaft I (202).

3. The molten iron car foundation brake device capable of effectively avoiding friction on the wheel axle according to claim 2 is characterized in that: The upper end of the lever (201) is bent upward by 30°.

4. The molten iron car foundation brake device capable of effectively avoiding friction on the wheel axle according to claim 2 is characterized in that: The upper end of the lever (201) is bent by heating.

5. The molten iron car foundation brake device capable of effectively avoiding friction on the wheel axle according to claim 2 is characterized in that: The lever (201) is made of Q235-B steel plate.

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