Feeding trolley for tundish production

Abstract

The utility model discloses a feeding trolley for tundish production, and belongs to the technical field of steel smelting. Two second blind holes are formed in the bottom of the vehicle body, the fixing assembly comprises a second hydraulic push rod, the fixed end of the second hydraulic push rod is installed in the second blind holes, a shell is fixedly connected to the movable end of the second hydraulic push rod, two protruding blocks are arranged on the two sides of the inner wall of the shell, and lower racks are installed on the protruding blocks; an upper rack is installed on the rail, third blind holes are formed in the two sides of the inner wall of the shell, third hydraulic push rods are installed in the third blind holes, and check blocks are fixedly connected to the moving ends of the third hydraulic push rods. According to the utility model, the feeding trolley is fixed on the track by arranging the positioning assembly, so that molten steel is accurately poured into a pouring position in the pouring process, and the problem of molten steel waste caused by movement of the feeding trolley during pouring is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of steel smelting, in particular to a feeding trolley for tundish production. BACKGROUND

[0002] The tundish is a refractory container used in short process steelmaking, which first receives molten steel poured from a ladle and then distributes the molten steel to various crystallizers through a tundish nozzle. The tundish has the following metallurgical functions: improving molten steel flow conditions, removing non-metallic inclusions in the steel, preventing short-circuit flow, reducing dead zones, improving flow line direction, increasing molten steel residence time, controlling molten steel temperature, and if necessary, adding heating measures to maintain stable molten steel superheat, selecting appropriate tundish lining refractory materials and molten pool covering agents to reduce heat loss and facilitate the absorption and separation of inclusions. In tundish production, a feeding trolley is often used to transport molten steel for pouring. During pouring, the feeding trolley is located above the pouring position, allowing the molten steel to be accurately poured into the mold. If the feeding trolley moves, it will cause the molten steel to overflow the pouring position, resulting in waste of molten steel and posing a significant safety risk to the operator. SUMMARY

[0003] The utility model aims to provide a feeding trolley for tundish production, which is fixed on the track by setting a positioning assembly, allowing the molten steel to be accurately poured into the pouring position during pouring, thereby solving the problem of molten steel waste caused by movement of the feeding trolley during pouring.

[0004] The utility model is achieved through the following technical solutions:

[0005] The utility model discloses a feeding trolley for tundish production, which comprises a trolley body and a fixing assembly. Two second blind holes are formed in the bottom of the trolley body. The fixing assembly comprises a second hydraulic push rod, the fixed end of the second hydraulic push rod is installed in the second blind hole, an outer shell is fixedly connected to the moving end of the second hydraulic push rod, two protrusions are arranged on the inner wall of the outer shell, a lower gear rack is installed on the protrusions, an upper gear rack is installed on the track, a third blind hole is formed in the two sides of the inner wall of the outer shell, a third hydraulic push rod is installed in the third blind hole, and a stop block is fixedly connected to the moving end of the third hydraulic push rod.

[0006] Further, a groove is formed in the top of the trolley body, two first blind holes are formed in the inner wall of the groove, a first hydraulic push rod is installed in each first blind hole, and a clamping plate is fixedly connected to the moving end of the first hydraulic push rod.

[0007] Further, four slide rods are fixedly connected to the trolley body, and the slide rods are installed in pairs at the bottom of the trolley body.

[0008] Further, two through holes are formed in the outer shell, and the slide rods extend into the outer shell through the through holes.

[0009] Further, the bottom of the vehicle body is provided with four wheels.

[0010] Further, the clamping plate is provided with a heat insulation plate, and the heat insulation plate can be made of asbestos.

[0011] The utility model has the following beneficial effects:

[0012] The utility model is provided with a fixing assembly, when the feeding trolley moves above the pouring position, the second hydraulic push rod is started, the fixing assembly is moved upwards, the lower rack installed in the shell is engaged with the upper rack installed on the track of the pouring position, the feeding trolley is fixed above the pouring position, the feeding trolley is prevented from shaking or moving to make the molten steel overflow the pouring position, and the molten steel is prevented from being wasted and the operator is prevented from being harmed.

[0013] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Fig. 1 is a structural schematic view of the feeding trolley;

[0015] Figure 2 Fig. 2 is a sectional structural schematic view of the feeding trolley;

[0016] Figure 3 Fig. 3 is a structural schematic view of the vehicle body;

[0017] Figure 4 Fig. 4 is a structural schematic view of the fixing assembly;

[0018] Figure 5 Fig. 5 is a local enlarged schematic view of A-A.

[0019] In the figure: 1, vehicle body; 2, clamping plate; 3, wheel; 4, fixing assembly; 101, recess; 102, first blind hole; 103, first hydraulic push rod; 104, second blind hole; 105, sliding rod; 401, second hydraulic push rod; 402, shell; 403, protruding block; 404, lower rack; 405, upper rack; 406, third blind hole; 407, third hydraulic push rod; 408, stop block; 409, through hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1-5 The utility model provides a technical solution: a feeding trolley for tundish production, comprising a car body 1, two second blind holes 104 are opened at the bottom of the car body 1, a fixing assembly 4 comprises a second hydraulic push rod 401, the fixed end of the second hydraulic push rod 401 is installed in the second blind hole 104, the second hydraulic push rod 401 is fixedly connected to the movable end with a shell 402, two protrusions 403 are provided on both sides of the inner wall of the shell 402, a lower rack 404 is installed on the protrusion 403, an upper rack 405 is installed on the track, third blind holes 406 are opened on both sides of the inner wall of the shell 402, a third hydraulic push rod 407 is installed in the third blind hole 406, and a stopper 408 is fixedly connected to the movable end of the third hydraulic push rod 407.

[0023] In this embodiment, the feeding trolley runs on a track set up inside the steel plant, and the outer shell 402 is mounted on the track. When it reaches above the casting position, the second hydraulic push rod 401 is started to move the fixed component 4 upward, so that the lower rack 404 installed inside the outer shell 402 engages with the upper rack 405 installed on the track at the casting position. At the same time, the third hydraulic push rod 407 is extended to make the block 408 contact the track, which helps to fix the feeding trolley so that the feeding trolley is fixed above the casting position.

[0024] A groove 101 is provided on the top of the vehicle body 1, and two first blind holes 102 are provided on the inner wall of the groove 101. A first hydraulic push rod 103 is installed in each of the first blind holes 102. A splint 2 is fixedly connected to the movable end of the first hydraulic push rod 103, and an insulation board is installed on the splint 2. The insulation board material can be asbestos or the like.

[0025] In this embodiment, the first hydraulic push rod 103 pushes the clamping plate 2 so that the two clamping plates 2 come into contact with the furnace body filled with molten steel, fixing the furnace body on the feeding trolley. An insulation plate is provided on the inner side of the clamping plate 2 to prevent the feeding trolley from being damaged by high temperature.

[0026] Four slide bars 105 are fixedly connected to the bottom of the vehicle body 1. The slide bars 105 are installed in groups of two at the bottom of the vehicle body 1. Two through holes 409 are provided on the outer shell 402. The slide bars 105 extend into the outer shell 402 through the through holes 409. Four wheels 3 are installed at the bottom of the vehicle body 1.

[0027] In this embodiment, four sliding bars 105 are provided at the bottom of the vehicle body 1. When the feeding trolley is fixed above the pouring position and the vehicle body 1 shakes or tends to move, the four sliding bars 105 bear the force generated by the vehicle body 1 and the cargo on the vehicle body 1 to prevent the second hydraulic push rod 401 from being damaged.

[0028] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A feeding trolley for tundish production, comprising a trolley body (1) and a track, characterized in that: The bottom of the vehicle body (1) is provided with two second blind holes (104): The invention also includes a fixing assembly (4), wherein the fixing assembly (4) includes a second hydraulic push rod (401), a fixed end of the second hydraulic push rod (401) is installed in a second blind hole (104), a housing (402) is fixedly connected to the movable end of the second hydraulic push rod (401), two protrusions (403) are provided on both sides of the inner wall of the housing (402), a lower rack (404) is installed on the protrusions (403), an upper rack (405) is installed on the track, a third blind hole (406) is opened on both sides of the inner wall of the housing (402), a third hydraulic push rod (407) is installed in the third blind hole (406), and a stopper (408) is fixedly connected to the movable end of the third hydraulic push rod (407).

2. The feeding trolley for tundish production according to claim 1, characterized in that: A groove (101) is provided on the top of the vehicle body (1), and two first blind holes (102) are provided on the inner wall of the groove (101). First hydraulic push rods (103) are installed in each of the first blind holes (102), and a clamping plate (2) is fixedly connected to the movable end of the first hydraulic push rod (103).

3. The feeding trolley for tundish production according to claim 1, characterized in that: Four slide bars (105) are fixedly connected to the bottom of the vehicle body (1), and the slide bars (105) are installed in groups of two at the bottom of the vehicle body (1).

4. The feeding trolley for tundish production according to claim 3, characterized in that: Two through holes (409) are provided on the housing (402), and the slide rod (105) passes through the through holes (409) and extends into the housing (402).

5. The feeding trolley for tundish production according to claim 1, characterized in that: Four wheels (3) are installed on the bottom of the vehicle body (1).

6. The feeding trolley for tundish production according to claim 2, characterized in that: A heat insulation board is installed on the clamping plate (2).

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