CN209753958U - Novel accident cutting oil cylinder of large square billet continuous casting machine - Google Patents

Novel accident cutting oil cylinder of large square billet continuous casting machine Download PDF

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Publication number
CN209753958U
CN209753958U CN201920116202.0U CN201920116202U CN209753958U CN 209753958 U CN209753958 U CN 209753958U CN 201920116202 U CN201920116202 U CN 201920116202U CN 209753958 U CN209753958 U CN 209753958U
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China
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oil cylinder
cylinder
upper flange
novel
continuous casting
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CN201920116202.0U
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杨奕兵
刘亚洲
王友青
夏红杰
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Nanjing Iron and Steel Co Ltd
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Nanjing Iron and Steel Co Ltd
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Abstract

An accident cutting oil cylinder of a novel bloom continuous casting machine. The utility model relates to the field of metallurgy, which comprises an oil cylinder upper flange, a cylinder body and an oil cylinder lower flange which are fixedly connected with each other; an oil cylinder hanging lug is fixedly arranged at one end close to the oil cylinder upper flange; and pistons are arranged in the upper flange of the oil cylinder, the cylinder body and the lower flange of the oil cylinder in a penetrating manner. The utility model discloses the integrated design of the cylinder-in-cylinder method 1 and the oil cylinder hangers, which solves the defect that the sealing is likely to be damaged in the process of on-site secondary assembly; in addition, the stress of the connected screw is more uniform, and the strength is more reliable; the thread of the countersunk head screw rod does not need to be exposed, the installation gap of the arc-shaped groove is large, and the installation is simpler and more convenient; the novel oil cylinder is optimized and designed into three main parts by the original five main parts, so that one sealing is reduced, the oil leakage risk is reduced, the safety and reliability of the use of the oil cylinder are improved, the service life is greatly prolonged, and the maintenance cost of spare parts and the labor intensity of workers are greatly reduced.

Description

Novel accident cutting oil cylinder of large square billet continuous casting machine
Technical Field
The utility model relates to a metallurgical field, specific saying so relates to a novel big square billet conticaster accident cuts off hydro-cylinder.
Background
at present, in the continuous casting process of a continuous casting machine, when production accidents such as steel leakage, stretch breaking and the like occur, a casting blank cutting oil cylinder must be capable of quickly cutting off a liquid steel casting flow so as to ensure that core equipment such as a crystallizer, a vibrating table, a fan-shaped section and the like of the continuous casting machine are not burnt by the liquid steel casting flow, and the safe and reliable operation of the continuous casting machine equipment is ensured. At present, most of domestic casting blank cutting oil cylinders of large square billet continuous casting machines are square flanges, five main components, namely an oil cylinder hanging lug, an upper flange, a cylinder body, a piston rod and a lower flange, are connected and fastened by through-long double-end screws at four corners, and the oil cylinder hanging lug with a circular groove on the oil cylinder upper flange is a gold machined part. Because the oil cylinder needs to be subjected to a pressure test when leaving a factory, flange nuts on four full-length double-thread screws of the oil cylinder need to be loosened on the site and an oil cylinder hanger is installed after spare parts arrive, so that on-site secondary assembly is caused. After the oil cylinder lugs are installed on the upper flange of the double-end screw, screw threads of the screw protrude 2-3 threads of the nut, so that the installation clearance between the lugs and the accident cutting device is small, and the installation difficulty and the installation time are increased. Because of in the conticaster production process, change group operating personnel at every turn and all need dismouting casting blank cut-off oil cylinder once, because of the installation degree of difficulty is big time partially long, when increasing operating personnel intensity of labour, the auxiliary time is long, influences conticaster production efficiency. In order to solve the problems of safety and reliability of the casting blank cutting oil cylinder and convenience in installation and use, optimization and improvement are needed.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides an in metallurgical industry conticaster continuous casting process, realize that casting blank cutting device uses convenient, safe and reliable's core component, play the novel big square billet conticaster accident of assurance equipment operation safety to casting blank casting process and cut off the hydro-cylinder.
The technical scheme of the utility model is that: the oil cylinder comprises an oil cylinder body, wherein the oil cylinder body comprises an oil cylinder upper flange, a cylinder body and an oil cylinder lower flange which are fixedly connected with each other;
and an oil cylinder hanging lug is fixedly arranged at one end close to the oil cylinder upper flange.
And pistons are arranged in the upper flange of the oil cylinder, the cylinder body and the lower flange of the oil cylinder in a penetrating manner.
The oil cylinder upper flange, the cylinder body and the oil cylinder lower flange are connected through four through long screw rods.
The oil cylinder upper flange, the cylinder body and the oil cylinder lower flange are connected through six countersunk head inner hexagonal screws.
And the outer walls of the oil cylinder upper flange, the cylinder body, the oil cylinder lower flange and the oil cylinder hanging lug are all provided with an anticorrosive plastic coating.
The utility model has the advantages that: 1. the oil cylinder upper flange and the oil cylinder hanging lug are integrally designed, pressure testing can be integrally assembled, the problem of secondary disassembly and assembly does not exist, the defect that sealing is possibly damaged or screws are not fastened uniformly in the process of secondary assembly on site due to cutting of the oil cylinder by an original casting blank is overcome, oil cylinder sealing is reduced from three sealing to two sealing, and the major safety risk problem of oil leakage or high-pressure hydraulic oil splashing in the using process is greatly reduced. 2. The connection of the upper flange of the oil cylinder and the cylinder body is optimally designed to be connected by six countersunk hexagon socket head bolts, so that the stress of the screw is more uniform, and the strength is more reliable; the thread of the countersunk head screw rod does not need to be exposed, the installation gap of the arc-shaped groove is large, and the installation is simpler and more convenient; the problems that the redundancy of fastening strength is small and the stress of screws is uneven because five main components of an original casting blank cutting oil cylinder are connected by four full-length double-headed screws are solved. 3. The novel oil cylinder is optimized and designed into three main parts by five original main parts, the lower flange of the original oil cylinder and the cylinder body are designed into a whole after the optimization design, one sealing is reduced, the oil leakage risk is reduced, the safety and reliability performance of the oil cylinder are improved, the service life is greatly prolonged, and the maintenance cost of spare parts and the labor intensity of workers are greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
In the figure, 1 is an upper flange of an oil cylinder, 2 is a cylinder body, 3 is a lower flange of the oil cylinder, 4 is an oil cylinder hanging lug, and 5 is a piston.
Detailed Description
The utility model discloses; the oil cylinder comprises an oil cylinder body, wherein the oil cylinder body comprises an oil cylinder upper flange 1, a cylinder body 2 and an oil cylinder lower flange 3 which are fixedly connected with each other;
an oil cylinder hanging lug 4 is fixedly arranged at one end close to the oil cylinder upper flange 1; the upper flange 1 of the oil cylinder and the hanging lug 4 of the oil cylinder are designed into a whole, and the cylinder body 2 and the lower flange 3 of the oil cylinder are designed into a whole, so that two seals can be reduced, and the risk of oil leakage is reduced.
A piston 5 is arranged in the oil cylinder upper flange 1, the cylinder body 2 and the oil cylinder lower flange 3 in a penetrating manner; the piston 5 may be a fixed piston 5 or a movable plunger 5.
The oil cylinder upper flange 1, the cylinder body 2 and the oil cylinder lower flange 3 are connected through four through long screw rods.
Preferably, the oil cylinder upper flange 1, the oil cylinder body 2 and the oil cylinder lower flange 3 are connected through six countersunk hexagon socket head cap screws, so that the connection strength among the oil cylinder upper flange 1, the oil cylinder body 2 and the oil cylinder lower flange 3 can be increased, and the stress distribution of the oil cylinder is more uniform.
And the outer walls of the oil cylinder upper flange 1, the cylinder body 2, the oil cylinder lower flange 3 and the oil cylinder hanging lug 4 are all provided with an anticorrosive plastic coating.
The utility model discloses an action principle: hydraulic oil is supplied through an oil inlet and an oil return port, and the direction is changed through a hydraulic valve, so that the front and back actions of the piston of the oil cylinder are realized; the casting blank cutting gate plate is pushed to act, a refractory material water gap is cut off, liquid steel casting flow is cut off, and safe operation of key process quality equipment such as a crystallizer and a fan-shaped section below the tundish is guaranteed.
The utility model has the advantages that: 1. the oil cylinder upper flange 1 and the oil cylinder hanging lug 4 are integrally designed, so that pressure test can be integrally assembled, the problem of secondary disassembly and assembly is avoided, the defects that sealing is damaged or screws are fastened unevenly in the process of on-site secondary assembly of the oil cylinder due to cutting of an original casting blank are overcome, the oil cylinder sealing is reduced from three sealing to two sealing, and the major safety risk problem of oil leakage or high-pressure hydraulic oil splashing in the using process is greatly reduced. 2. The connection of the oil cylinder upper flange 1 and the cylinder body 2 is optimally designed to be connected by six countersunk hexagon socket head bolts, so that the stress of the screw is more uniform, and the strength is more reliable; the thread of the countersunk head screw rod does not need to be exposed, the installation gap of the arc-shaped groove is large, and the installation is simpler and more convenient; the problems that the redundancy of fastening strength is small and the stress of screws is uneven because five main components of an original casting blank cutting oil cylinder are connected by four full-length double-headed screws are solved. 3. The novel oil cylinder is optimized and designed into three main parts by five original main parts, the original oil cylinder lower flange 3 and the original oil cylinder body 2 are designed into a whole after the optimization design, one sealing is reduced, the oil leakage risk is reduced, the safety and reliability performance of the oil cylinder are improved, the service life is greatly prolonged, and the maintenance cost of spare parts and the labor intensity of workers are greatly reduced.
The utility model discloses can solve big square billet conticaster accident basically and cut off hydro-cylinder life weak point, the problem that oil leakage splash risk is big. Core equipment such as a crystallizer, a vibration table and a fan-shaped section of the continuous casting machine are prevented from being burnt by liquid steel casting flow, and safe and reliable operation of the continuous casting machine equipment is guaranteed.

Claims (5)

1. the utility model provides a novel big square billet conticaster accident cuts off hydro-cylinder, includes the hydro-cylinder body, its characterized in that: the oil cylinder body comprises an oil cylinder upper flange, a cylinder body and an oil cylinder lower flange which are fixedly connected with each other;
And an oil cylinder hanging lug is fixedly arranged at one end close to the oil cylinder upper flange.
2. The novel accidental cutting oil cylinder of the bloom continuous casting machine according to claim 1, characterized in that: and pistons are arranged in the upper flange of the oil cylinder, the cylinder body and the lower flange of the oil cylinder in a penetrating manner.
3. The novel accidental cutting oil cylinder of the bloom continuous casting machine according to claim 1, characterized in that: the oil cylinder upper flange, the cylinder body and the oil cylinder lower flange are connected through four through long screw rods.
4. The novel accidental cutting oil cylinder of the bloom continuous casting machine according to claim 1, characterized in that: the oil cylinder upper flange, the cylinder body and the oil cylinder lower flange are connected through six countersunk head inner hexagonal screws.
5. The novel accidental cutting oil cylinder of the bloom continuous casting machine according to claim 1, characterized in that: and the outer walls of the oil cylinder upper flange, the cylinder body, the oil cylinder lower flange and the oil cylinder hanging lug are all provided with an anticorrosive plastic coating.
CN201920116202.0U 2019-01-23 2019-01-23 Novel accident cutting oil cylinder of large square billet continuous casting machine Active CN209753958U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920116202.0U CN209753958U (en) 2019-01-23 2019-01-23 Novel accident cutting oil cylinder of large square billet continuous casting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920116202.0U CN209753958U (en) 2019-01-23 2019-01-23 Novel accident cutting oil cylinder of large square billet continuous casting machine

Publications (1)

Publication Number Publication Date
CN209753958U true CN209753958U (en) 2019-12-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109676100A (en) * 2019-01-23 2019-04-26 南京钢铁股份有限公司 A kind of novel large square bland continuous-casting machine emergency switching-off oil cylinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109676100A (en) * 2019-01-23 2019-04-26 南京钢铁股份有限公司 A kind of novel large square bland continuous-casting machine emergency switching-off oil cylinder

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