CN219301292U

CN219301292U - Furnace cover electrode opening and closing lifting device for electric melting furnace

Info

Publication number: CN219301292U
Application number: CN202220930087.2U
Authority: CN
Inventors: 朱广政; 郭宝阳; 王永林; 杨松; 刘卫标; 朱凯; 陈跃文; 文均
Original assignee: Yunnan Kisc Heavy Equipment Manufacturing Group Co ltd
Current assignee: Yunnan Kisc Heavy Equipment Manufacturing Group Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2023-07-04
Anticipated expiration: 2032-04-21

Abstract

The utility model discloses a furnace cover electrode opening and closing lifting device for an electric melting furnace, which comprises a base, a rotary vertical shaft, supporting arms, a furnace cover opening and closing device and an electrode lifting device, wherein the base is arranged beside the electric melting furnace, the rotary vertical shaft is arranged on the base, the supporting arms comprise an upper supporting arm and a lower supporting arm which are arranged on the rotary vertical shaft at intervals, the furnace cover opening and closing device is connected with the upper supporting arm and the lower supporting arm, the furnace cover opening and closing device is used for lifting a furnace cover to open or lower the furnace cover to close, the electrode lifting device is connected with the upper supporting arm and the lower supporting arm, the electrode lifting device is used for lifting an electrode rod or lowering the electrode rod, and the electrode rod penetrates through the top of the furnace cover and can slide up and down. The utility model has compact structure, stable performance, simple installation, smaller occupied area and high space utilization rate, is convenient for loading, unloading and hoisting cast ingots in the smelting furnace, and improves the operation safety.

Description

Furnace cover electrode opening and closing lifting device for electric melting furnace

Technical Field

The utility model belongs to the technical field of metallurgical equipment, and particularly relates to a furnace cover electrode opening and closing lifting device for an electric melting furnace for preparing metal powder.

Background

In recent years, with the rapid development of the titanium market, the requirement on the yield of high-end titanium and alloy thereof is increased year by year, the requirement on high quality is also higher and higher, the development of high-temperature active metal casting technology is also mature, the furnace cover and the electrode of the existing electric melting furnace often need to be matched manually in the use process, the strength and the unsafe performance are increased in the high-temperature environment, and the efficiency is reduced; in order to improve the working efficiency of casting, improve the safety and convenience of operators, reduce the labor intensity of workers, realize the automatic closing and opening of a furnace cover, control an electrode rod to be automatically inserted into a smelting furnace, and rotate together with the furnace cover to be removed after one furnace is smelted, so that a space above the mouth of the smelting furnace is emptied, and the crucible in the furnace is convenient to feed, clean and hoist and cast ingots, therefore, the research and development of the furnace cover electrode automatic opening and closing lifting device with stable structural performance, convenient operation, safety and reliability is particularly important.

Disclosure of Invention

The utility model aims to provide the furnace cover electrode automatic opening and closing lifting device for the electric melting furnace, which has the advantages of stable structural performance, convenience in operation, safety, reliability and higher efficiency.

The utility model aims at realizing the method, which comprises a base, a rotary vertical shaft, a supporting arm, a furnace cover opening and closing device and an electrode lifting device, wherein the base is arranged beside an electric melting furnace, the rotary vertical shaft is arranged on the base, the supporting arm comprises an upper supporting arm and a lower supporting arm which are arranged on the rotary vertical shaft at intervals, the furnace cover opening and closing device is connected with the upper supporting arm and the lower supporting arm, the furnace cover opening and closing device is used for lifting a furnace cover to open or lowering the furnace cover to close, the electrode lifting device is connected with the upper supporting arm and the lower supporting arm, the electrode lifting device is used for lifting an electrode rod or lowering the electrode rod, and the electrode rod penetrates through the top of the furnace cover and can slide up and down.

The utility model has the following technical effects:

1. the electrode rod can be separated from the furnace cover, the integral lifting of the electrode rod can be realized through the automatic lifting driving device, the furnace cover can be opened and closed through the automatic lifting of the furnace cover opening and closing device, and the integral rotary movement can be realized through the rotary shaft barrel, so that the purpose of reserving the upper space of the furnace cover is achieved, the feeding, cleaning and ingot lifting of a crucible in the furnace are facilitated, and compared with the traditional lifting mode of a winch, the control precision is higher, thereby improving the stability of electric arc during smelting, improving the smelting quality and being more convenient and faster in operation.

2. The cantilever type structure is adopted, the structure is compact, the installation is simple, the occupied area is smaller, the space utilization rate is high, the overhaul difficulty of equipment is reduced, and the safety of the equipment is improved.

The utility model has the characteristics of stable and compact structural performance, safety, reliability and easy control.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of a front view structure of the present utility model;

FIG. 3 is a schematic left-hand view of FIG. 2;

FIG. 4 is a schematic top view of FIG. 2;

in the figure: 1-a base, 2-a rotary shaft cylinder driver, 2-a reduction hydraulic motor, 3-a rotary vertical shaft, 3-a central fixed shaft; 3B-rotating shaft cylinder, 4-lower supporting arm, 4A-lower left supporting arm, 4B-lower right supporting arm, 5-upper supporting arm, 5A-upper left supporting arm, 5B-upper right supporting arm, 6-furnace cover opening and closing device, 6A-furnace cover lifting support, 6B-furnace cover sliding support, 6C-hydraulic cylinder, 7-electrode rod lifting device, 7A-electrode rod supporting frame, 7B-sprocket cover, 7C-chain, 8-guide rail upright post, 8A-electrode rod supporting frame guide rail upright post, 8B-furnace cover sliding guide rail upright post, 8C-electrode driving frame guide rail upright post, 9-electrode lifting driving device, 9A-counterweight plate, 9B-electrode driving frame, 9C-electrode driver, 10-upper supporting seat, 11-electrode rod, 11A-electrode rod installation seat, 12-furnace cover and 13-maintenance walking platform.

Detailed Description

The utility model is further described below with reference to the accompanying drawings, without limiting the utility model in any way, and any alterations or substitutions based on the teachings of the utility model are intended to fall within the scope of the utility model.

The utility model comprises a base 1, a rotary vertical shaft 3, a supporting arm, a furnace cover opening and closing device 6 and an electrode lifting device, wherein the base 1 is arranged beside an electric melting furnace, the rotary vertical shaft 3 is arranged on the base 1, the supporting arm comprises an upper supporting arm 5 and a lower supporting arm 4 which are arranged on the rotary vertical shaft at intervals, the furnace cover opening and closing device 6 is connected with the upper supporting arm and the lower supporting arm, the furnace cover opening and closing device 6 is used for lifting a furnace cover to open or lowering the furnace cover to close, the electrode lifting device is connected with the upper supporting arm and the lower supporting arm, the electrode lifting device is used for lifting an electrode rod 11 or lowering the electrode rod 11, and the electrode rod 11 penetrates through the top of a furnace cover 12 and can slide up and down.

The upper support arm and the lower support arm are arranged in a Y shape and comprise a left support arm and a right support arm, and the left support arm and the right support arm are intersected at the joint of the rotary vertical shaft 3.

The furnace cover opening and closing device 6 comprises a furnace cover sliding guide column 8B connected with the middle parts of an upper supporting arm and a lower supporting arm, a furnace cover sliding support 6B in sliding fit with the furnace cover sliding guide column, a furnace cover lifting support 6A connected with the furnace cover sliding support, and a furnace cover opening and closing driver 6C arranged on the supporting arms and connected with the furnace cover sliding support, wherein the front end of the furnace cover lifting support 6A is provided with a furnace cover 12 and positioned at a fork opening of the supporting arms, and the furnace cover 12 is connected with the furnace cover lifting support 6A through lifting lugs. The lifting lug ensures that the furnace cover is always in a vertical state under the gravity, is favorable for not deflecting and tightly closing the electric melting furnace, and can play a role in buffering to avoid the downward pressing transition of the lifting bracket of the furnace cover.

The furnace cover opening and closing driver is one of an oil cylinder, an air cylinder and an electric push rod.

The electrode rod lifting device 7 comprises two parallel electrode rod support frame guide rail upright posts 8A which are respectively arranged between the front ends of a left support arm and a right support arm, an electrode rod support frame 7A which is slidably connected with the electrode rod support frame upright posts at two ends, a chain wheel which is arranged on an upper support arm and matched with a chain in a sliding manner, an electrode lifting driving device 9 which is arranged between the fork tails of the upper support arm and the lower support arm, and a chain 7C which is connected with the electrode support frame 7A at one end and penetrates through the chain wheel and is connected with the electrode lifting driving device at the other end, wherein the electrode lifting driving device 9 drives the electrode rod support frame 7A to lift up and down through the chain, and the electrode rod support frame is connected with the upper end of the electrode rod 11. The double guide rails and the double chains are beneficial to stability and accuracy of lifting of the electrode rod.

The electrode rod support frame is provided with an electrode rod mounting seat 11A, and the electrode rod is detachably arranged on the electrode rod mounting seat 11A. The electrode rod is convenient to replace and adjust.

The electrode lifting driving device 9 comprises an electrode driving frame guide rail upright post 8C arranged between the fork tails of the upper support arm and the lower support arm, an electrode driving frame 9B connected with the electrode driving frame guide rail upright post in a sliding mode, and an electrode driver 9C connected with the electrode driving frame, two chains 7C are symmetrically arranged, and two ends of each chain 7C are respectively connected with the electrode rod support frame 7A and the electrode driving frame 9B.

The electrode driver is one of an oil cylinder, an air cylinder and an electric push rod.

The electrode driver and the furnace cover opening and closing driver are hydraulic cylinders.

The electrode driving frame 9B is provided with a weight plate 9A.

The rotary vertical shaft 3 comprises a central dead shaft 3A and a rotary shaft cylinder 3B, the lower end of the central dead shaft 3A is connected with the base 1, the rotary shaft cylinder 3B is sleeved on the central dead shaft 3A and can rotate around the central dead shaft, the base 1 is provided with a rotary shaft cylinder driver 2, the rotary shaft cylinder driver 2 is used for driving the rotary shaft cylinder to rotate around the central dead shaft, the upper support arm and the lower support arm are arranged on the rotary shaft cylinder 3B, and the rotary shaft cylinder 3B rotates to drive the upper support arm and the lower support arm to rotate around the central dead shaft 3A.

The rotary shaft cylinder driver is a hydraulic motor or an electric motor.

The rotary shaft cylinder driver 2 comprises a speed reduction hydraulic motor 2A connected with a base, a driving gear arranged on an output shaft of the speed reduction hydraulic motor, and a driven gear ring meshed with the driving gear, wherein the driven gear ring is sleeved on the rotary shaft cylinder 3B, and the speed reduction hydraulic motor is used for driving the rotary shaft cylinder to rotate.

The upper end of the center dead axle 3A is provided with an upper supporting seat 10 which is used for being fixedly connected with a wall body and/or a top plate.

The electrode rod hole on the furnace cover 12 is provided with a sealing ring, and the electrode rod 11 is in sealing sliding connection with the furnace cover 12.

The upper and lower support arms are provided with a maintenance walking board 13.

The left and right support arms of the upper and lower support arms are respectively assembled and clamped in the upper and lower driving keys of the rotating shaft cylinder, and are connected and fixed on the rotating shaft cylinder through bolts.

The opening and closing device of the oil cylinder, the air cylinder, the electric push rod, the hydraulic motor and the motor is electrically connected with the controller.

The working principle and the working process of the utility model are as follows: as shown in fig. 1 to 4, when in operation, the rotary shaft cylinder driver 2 is started, the rotary shaft cylinder 3B is driven by the power hydraulic motor to rotate so as to drive the upper and lower support arms to rotate, the electrode rod 11 and the furnace cover 12 are carried to rotate to the position right above the smelting furnace, then the furnace cover opening and closing device 6 is started, the piston rod of the hydraulic cylinder 6C is retracted, the furnace cover lifting support 6A is moved downwards so as to drive the furnace cover 12 to be attached and sealed with the electric smelting furnace, then the electrode driver 9C of the electrode lifting driving device 9 is started, the piston rod of the hydraulic cylinder of the electrode driver 9C is extended, the electrode driving frame 9B is pushed to move upwards, the electrode rod of the electrode rod support frame 7A at the other end of the chain 7C and the electrode rod 11 naturally descend under the action of dead weight, and the electrode stretches into the electric smelting furnace to perform arc reaction with the smelting crucible and alloy bulk materials in the furnace. After smelting, the piston rod of the hydraulic cylinder of the electrode driver 9C is retracted to drive the electrode driving frame 9B to move downwards, at the moment, the electrode rod supporting frame 7A is pulled to move upwards through the transmission of the chain 7C, meanwhile, the electrode rod and parts thereof attached to the electrode rod supporting frame 7A move upwards together, the electrode leaves the smelting crucible, then the furnace cover opening and closing device 6 is started, the piston rod of the hydraulic cylinder 6C stretches out to enable the furnace cover lifting bracket 6A to move upwards, so that the furnace cover 12 is driven to be separated from the electric smelting furnace to be opened, the rotary shaft cylinder driver 2 is started again, the upper and lower supporting rotary arms fixed on the rotary shaft cylinder 3B and all parts attached to the supporting arms are driven to rotate around the shaft, and after the rotary movement, the upper space of the electric smelting furnace is completely exposed, so that the loading, unloading and ingot lifting of the smelting furnace are facilitated.

Claims

1. The utility model provides a furnace lid electrode opening and closing elevating gear for electric melting furnace, includes base (1), rotatory vertical axis (3), support arm, furnace lid opening and closing device (6), electrode elevating gear, its characterized in that set up in the electric melting furnace next door: the rotary vertical shaft (3) is arranged on the base (1), the supporting arms comprise an upper supporting arm (5) and a lower supporting arm (4) which are arranged on the rotary vertical shaft at intervals, the furnace cover opening and closing device (6) is connected with the upper supporting arm and the lower supporting arm, the furnace cover opening and closing device (6) is used for lifting the furnace cover to open or descending the furnace cover to close, the electrode lifting device is connected with the upper supporting arm and the lower supporting arm, the electrode lifting device is used for lifting the electrode rod (11) or descending the electrode rod, and the electrode rod (11) penetrates through the top of the furnace cover (12) to slide up and down.

2. The furnace lid electrode opening and closing lifting device for an electric melting furnace according to claim 1, wherein: the upper support arm and the lower support arm are arranged in a Y shape and comprise a left support arm and a right support arm, and the left support arm and the right support arm are mutually combined with a rotary vertical shaft (3).

3. The furnace lid electrode opening and closing lifting device for electric melting furnace according to claim 2, wherein: the furnace cover opening and closing device (6) comprises a furnace cover sliding guide column (8B) connected with the middle parts of an upper supporting arm and a lower supporting arm, a furnace cover sliding support (6B) in sliding fit with the furnace cover sliding guide column, a furnace cover lifting support (6A) connected with the furnace cover sliding support, and a furnace cover opening and closing driver (6C) connected with the furnace cover sliding support and arranged on the supporting arm, wherein the front end of the furnace cover lifting support (6A) is provided with a furnace cover (12) and positioned at a fork opening of the supporting arm, and the furnace cover (12) is connected with the furnace cover lifting support (6A) through a lifting lug.

4. The furnace lid electrode opening and closing lifting device for electric melting furnace according to claim 2, wherein: the electrode rod lifting device (7) comprises two parallel electrode rod support frame guide rail stand columns (8A) which are respectively arranged between the front ends of a left support arm and a right support arm, electrode rod support frames (7A) with two ends in sliding connection with the electrode rod support rail stand columns, chain wheels which are arranged on an upper support arm and matched with a chain in sliding mode, an electrode lifting driving device (9) which is arranged between the fork tails of the upper support arm and the lower support arm, and a chain (7C) with one end connected with the electrode support frames (7A) and the other end connected with the electrode lifting driving device, wherein the electrode lifting driving device (9) drives the electrode rod support frames (7A) to lift up and down through the chain, and the electrode rod support frames are connected with the upper ends of electrode rods (11).

5. The furnace lid electrode opening and closing lifting device for an electric melting furnace according to claim 4, wherein: the electrode rod support frame is provided with an electrode rod mounting seat (11A), and the electrode rod is detachably arranged on the electrode rod mounting seat (11A).

6. The furnace lid electrode opening and closing lifting device for an electric melting furnace according to claim 4, wherein: the electrode lifting driving device (9) comprises an electrode driving frame guide rail upright post (8C) arranged between the upper support arm fork tail and the lower support arm fork tail, an electrode driving frame (9B) connected with the electrode driving frame guide rail upright post in a sliding mode, and an electrode driver (9C) connected with the electrode driving frame, wherein two chains (7C) are symmetrically arranged, and two ends of each chain (7C) are respectively connected with the electrode rod supporting frame (7A) and the electrode driving frame (9B).

7. The furnace lid electrode opening and closing lifting device for an electric melting furnace according to claim 6, wherein: and a counterweight plate (9A) is arranged on the electrode driving frame (9B).

8. The furnace lid electrode opening and closing lifting device for an electric melting furnace according to claim 1, wherein: the rotary vertical shaft (3) comprises a central dead shaft (3A) and a rotary shaft cylinder (3B), the lower end of the central dead shaft (3A) is connected with the base (1), the rotary shaft cylinder (3B) is sleeved on the central dead shaft (3A) and can rotate around the central dead shaft, a rotary shaft cylinder driver (2) is arranged on the base (1), the rotary shaft cylinder driver (2) is used for driving the rotary shaft cylinder to rotate around the central dead shaft, the upper support arm and the lower support arm are arranged on the rotary shaft cylinder (3B), and the rotary shaft cylinder (3B) rotates to drive the upper support arm and the lower support arm to rotate around the central dead shaft (3A).

9. The furnace lid electrode opening and closing lifting device for an electric melting furnace according to claim 8, wherein: the rotary shaft cylinder driver (2) comprises a speed reduction hydraulic motor (2A) connected with the base, a driving gear arranged on an output shaft of the speed reduction hydraulic motor, and a driven gear ring meshed with the driving gear, wherein the driven gear ring is sleeved on the rotary shaft cylinder (3B), and the speed reduction hydraulic motor is used for driving the rotary shaft cylinder to rotate.

10. The furnace lid electrode opening and closing lifting device for an electric melting furnace according to claim 8, wherein: the upper end of the center dead axle (3A) is provided with an upper supporting seat (10), and the supporting seat is used for being fixedly connected with a wall body and/or a top plate.