Improved self-resetting steel pushing pusher dog of continuous casting machine

Abstract

The utility model discloses an improved continuous casting machine self-resetting steel pushing pusher dog which comprises a pin shaft and a pusher dog body, a pin shaft hole is formed in the upper end of the pusher dog body, one side of the lower end of the pusher dog body is a straight surface, and the other opposite side of the pusher dog body is an inclined face, so that the lower portion of the pusher dog body is in a right trapezoid shape. The pin shafts on the two sides of the upper portion of the pusher dog are respectively provided with a positioning groove claw through a positioning sleeve, the lower portions of the positioning groove claws are provided with U-shaped grooves formed by reverse bending, and the pin shafts are clamped in the U-shaped grooves. According to the structure, the problem that the steel pushing long shaft is large in span and easy to deform is solved, the problem that the steel pushing pusher dog cannot be rapidly replaced is solved, installation is convenient, the positioning precision is high, and the field use effect is good.

Description

Technical Field

[0001] The utility model relates to an improved self-resetting steel pushing claw of a continuous casting machine. Background Art

[0002] The 150t2# continuous casting machine with eight machines and eight streams of the billet continuous casting machine of the steelmaking plant of Bagang Company is a multi-section production line. The billet continuous casting machine produces dozens of types of steel. The cast billet is cut into billets of a certain length by the cutting car, transported to the steel turning machine area by the conveyor roller, and then lifted vertically by the steel turning machine. The horizontal steel transfer car completes the translation of the billet to the spraying machine station. After the billet is sprayed, it is taken off the cooling bed. At this time, the role of the horizontal steel transfer car pushing steel equipment is to group the billets cut by the cutting car into six pieces in the front and rear areas according to the zoning requirements, so as to meet the functions of automatic spraying and cold bed crane lifting in the next process. When the machine is started, the horizontal steel transfer car equipment is the core equipment for the continuous casting machine's billet logistics partition and billet teaming. Once the horizontal steel transfer car pusher fails, the single-stream or multi-stream billet partition and translation of the continuous casting machine will fail, resulting in the inability to complete the process of translation, weighing and going off the line of the billet, which will inevitably have a greater impact on the steelmaking production organization.

[0003] The lifting hydraulic package of the existing steel transfer car and steel pushing device of the 150t continuous casting machine has a high failure rate and a long time to handle failures. However, the steel pushing claw structure is easy to change and lacks rigidity. After a period of use, the steel pushing claws fail to fall into place and the lifting fails. Since the original design structure uses two long shafts to install 6 claws at equal distances radially and uses flanges in the middle, in order to solve the problem of steel pushing lifting failure rate, the steel pushing device was redesigned according to the on-site one-way steel tapping process requirements. Summary of the invention

[0004] The utility model aims to provide an improved self-resetting pusher steel claw for a continuous casting machine, which solves the problem of the large variability of the long axis span of the pusher steel and the problem that the pusher steel claw cannot be quickly replaced. The utility model is easy to install, has high positioning accuracy and good on-site use effect.

[0005] An improved self-resetting steel pusher claw of a continuous casting machine comprises a pin shaft and a claw, wherein the upper end of the claw is provided with a pin shaft hole, one side of the lower end of the claw is a flat surface, and the other side opposite thereto is an inclined surface, so that the lower part of the claw is in the shape of a right-angled trapezoid, a pin shaft is passed through the pin shaft hole, a positioning groove claw is respectively installed on the pin shafts on both sides of the upper part of the claw through a positioning sleeve, the lower part of the positioning groove claw is provided with a U-shaped groove formed by reverse bending, and the pin shaft is clamped in the U-shaped groove.

[0006] After discussion and analysis, through on-site measurement and reference to professional materials, it was decided to design and manufacture a new self-resetting steel-pushing claw device for the continuous casting machine. According to the size of the on-site horizontal steel-transfer car body beam and the position space of the U-shaped positioning groove, a one-way split structure was designed. The steel-pushing claw device also has the function of automatically swinging forward to cross the ingots that stay on the steel-turning splitting bar when the horizontal steel-transfer car returns, and automatically resetting the claw to complete the steel-pushing operation when the steel-pushing car moves horizontally, solving the technical problems of the original steel-pushing mechanism of the continuous casting machine steel-transfer car not being able to rise and fall in place and the long axis of the steel-pushing claw being easy to deform. The newly designed self-resetting steel-pushing device is installed on the existing steel-transfer car body beam. The specific design content is as follows:

[0007] 1. Measure the dimensions of the original body beam of the transverse steel transfer vehicle and the dimensions of the U-shaped positioning groove interval according to the drawing to determine the overall dimensions of the steel pushing device.

[0008] 2. Calculate the impact force on the claw according to the motion parameters of the casting, calculate the overall stiffness of the original claw structure, and redesign the claw structure.

[0009] 3. According to the size of the U-shaped positioning groove on the steel transfer car body, the connecting pin and positioning sleeve used in conjunction with it are designed and processed using 45# steel.

[0010] 4. Design the overall structure of the push-steel claw, adopt an integrated structure of claw shaft and claw, increase the overall rigidity of the push-steel claw, and facilitate quick positioning and installation.

[0011] After the steel companies' steelmaking continuous casting machines use the new type of horizontal steel transfer car and steel pushing device, the technical problems of severe deformation and difficult replacement of the continuous casting machine's billet pushing mechanism can be solved, ensuring 100% accuracy in the billet-discharging zone teaming process operation, and normalizing the automation of equipment in the back area of ​​the continuous casting machine, reducing the workload of manual re-numbering and manual steel tapping, which not only ensures the service life of the steel pushing device, but also reduces the frequency of steel plant workers working in high-temperature areas, while greatly reducing the maintenance cost of steelmaking equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 It is a side structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0014] An improved self-resetting pusher steel claw for continuous casting machine, such as Figure 1 , 2As shown, it includes a pin shaft 3 and a pusher claw 4, the upper end of the pusher claw 4 has a pin shaft hole, one side of the lower end of the pusher claw 4 is a flat surface, and the other side opposite is an inclined surface, so that the lower part of the pusher claw is in the shape of a right-angled trapezoid, a pin shaft 3 is passed through the pin shaft hole, and a positioning groove claw 1 is installed on the pin shafts on both sides of the upper part of the pusher claw through a positioning sleeve 2, and the lower part of the positioning groove claw 1 has a U-shaped groove formed by reverse bending, and the pin shaft 3 is stuck in the U-shaped groove.

Claims

1. An improved self-resetting pusher claw for continuous casting machine, comprising a pin shaft and a pusher claw, characterized in that: The upper end of the pusher claw has a pin hole, one side of the lower end of the pusher claw is a flat surface, and the other side opposite is an inclined surface, so that the lower part of the pusher claw is in the shape of a right-angled trapezoid, a pin is passed through the pin hole, and a positioning groove claw is installed on the pins on both sides of the upper part of the pusher claw through a positioning sleeve, and the lower part of the positioning groove claw has a U-shaped groove formed by reverse bending, and the pin is stuck in the U-shaped groove.

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