Lifting and rotating mechanism for electroslag remelting furnace

Abstract

The lifting and rotating mechanism for the electroslag remelting furnace comprises a rotary supporting seat, a supporting oil cylinder is fixedly installed below the left portion of the rotary supporting seat, the upper portion of a piston rod of the supporting oil cylinder is in threaded connection with a supporting connecting sleeve, and the upper end of the supporting connecting sleeve is connected with a rotary lifting disc through a screw. The upper end of the rotary lifting disc is connected with a locking disc, and the lower end of the locking disc clings to a thrust roller bearing. The lifting function is used for lifting the furnace end to facilitate separation of the upper furnace leg and the lower furnace leg, the rotation function is used for rotating the furnace end from a working station to a to-be-working station after smelting of the furnace end is completed, and in the state that equipment is not stopped, it is guaranteed that one station works, and meanwhile a crystallizer can be replaced at the other station to take out a product. The hydraulic oil cylinder is used as a driving device, the hydraulic oil cylinder can output large supporting force, meanwhile, it is guaranteed that output force is continuous and stable, even if slight leakage occurs, the output force cannot be affected, and the requirement for the environment is not high when the hydraulic oil cylinder is used.

Description

Technical Field

[0001] The utility model relates to the technical field of electroslag remelting furnaces, in particular to a lifting and rotating mechanism used for electroslag remelting furnaces. Background Art

[0002] The electroslag remelting furnace is a device that uses the heat energy generated by the current passing through the high-resistance molten slag to remelt the metal. The electroslag remelting is generally carried out under atmospheric pressure. According to the needs, a vacuum unit can also be configured for vacuum refining. Nowadays, when the electroslag remelting furnace is used in two stations, it is difficult to ensure that one station is working while the other station is replacing the crystallizer to take out the product, which affects the working efficiency of the electroslag remelting furnace. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a lifting and rotating mechanism for an electroslag remelting furnace to solve the problems raised in the above background technology.

[0004] A lifting and rotating mechanism for an electroslag remelting furnace comprises a slewing support seat, a supporting oil cylinder is fixedly installed at the lower left part of the slewing support seat, a supporting connecting sleeve is threadedly connected to the upper part of the piston rod of the supporting oil cylinder, a slewing lifting plate is connected to the upper end of the supporting connecting sleeve by screws, a locking plate is connected to the upper end of the slewing lifting plate, a thrust roller bearing is tightly attached to the lower end of the locking plate, and the thrust roller bearing is embedded and installed on the outer side of the upper end of the slewing lifting plate. The upper and lower sides of the left part of the slewing support seat are respectively provided with upper fixed A positioning plate and a lower positioning plate, a swivel support shaft is installed between the upper positioning plate and the lower positioning plate, the lower portion of the lower positioning plate is rotatably connected with a swivel sleeve, the lower portion of the swivel support shaft passes through the swivel sleeve and is fixed to the upper end of the locking disk, a baffle plate and a connecting plate are respectively installed on both side walls of the swivel sleeve, a swivel cylinder assembly is installed on one side of the rear portion of the lower positioning plate, the swivel cylinder assembly is connected to the connecting plate, a limiting plate is fixed to the lower end of the lower positioning plate and on both sides of the baffle, and a limiting screw is installed in the limiting plate.

[0005] Preferably, a cylinder support plate is provided at the lower left portion of the slewing support seat, and the supporting cylinder is fixedly mounted on the upper end of the cylinder support plate.

[0006] Preferably, a screw channel is opened in the middle of the upper end of the rotary lifting plate, and the screws thereof movably penetrate the interior of the screw channel and are fixed to the upper end of the supporting connecting sleeve.

[0007] Preferably, the middle of the upper end of the rotary lifting disk penetrates to the inner side of the locking disk, and the middle of the upper end of the rotary lifting disk is externally threadedly connected with a locking nut tightly attached to the locking disk.

[0008] Preferably, a limit block is installed at the lower part of the rotary sleeve, and the limit block is stuck in the grooves on both sides of the rotary support shaft.

[0009] Preferably, the rotary cylinder assembly comprises a rotary oil cylinder and a rotary oil cylinder seat, the rotary oil cylinder seat is welded to the lower positioning plate, the rotary oil cylinder is hinged in the rotary oil cylinder seat, and the end of the piston rod of the rotary oil cylinder is connected to the connecting plate.

[0010] Beneficial effects: The lifting and rotating mechanism for the electroslag remelting furnace has a lifting function for lifting the furnace head to facilitate the detachment of the upper and lower furnace legs, and a rotating function for transferring the furnace head from the working station to the waiting station after the smelting is completed. When the equipment is not shut down, one station can be working while another station can replace the crystallizer and take out the product. A hydraulic cylinder is used as a driving device, which can output a large supporting force while ensuring the continuous stability of the output force. Even a slight leakage will not affect the output force, and the use of the hydraulic cylinder does not have high environmental requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall main view of the utility model;

[0012] Figure 2 It is a schematic side view of the utility model as a whole;

[0013] Figure 3 It is a schematic diagram of the overall top view of the utility model;

[0014] Figure 4 For this utility model Figure 2 Schematic diagram of removing the furnace head and furnace legs;

[0015] Figure 5 For this utility model Figure 4 AA cross-sectional diagram of ;

[0016] Figure 6 It is a cross-sectional schematic diagram of the support connecting sleeve of the utility model.

[0017] In the figure: 1-slewing support seat, 2-cylinder support plate, 3-support cylinder, 4-slewing sleeve, 5-support connecting sleeve, 6-slewing support shaft, 7-lower positioning plate, 8-upper positioning plate, 9-limiting block, 10-slewing cylinder, 11-slewing cylinder seat, 12-limiting plate, 13-limiting screw, 14-baffle, 15-furnace head, 16-upper furnace leg, 17-lower furnace leg, 18-connecting plate, 19-slewing lifting plate, 20-locking plate, 21-thrust roller bearing, 22-locking nut. DETAILED DESCRIPTION

[0018] See also Figure 1-Figure 6A lifting and rotating mechanism for an electroslag remelting furnace comprises a slewing support seat 1, a supporting oil cylinder 3 is fixedly installed at the lower left part of the slewing support seat 1, a cylinder supporting plate 2 is arranged at the lower left part of the slewing support seat 1, the supporting oil cylinder 3 is fixedly installed at the upper end of the cylinder supporting plate 2, a supporting connecting sleeve 5 is threadedly connected to the upper part of the piston rod of the supporting oil cylinder 3, a slewing lifting plate 19 is connected to the upper end of the supporting connecting sleeve 5 by screws, a screw channel is opened in the middle of the upper end of the slewing lifting plate 19, and the screw movably penetrates the inside of the screw channel and is fixed to the upper end of the supporting connecting sleeve 5, a locking plate 20 is connected to the upper end of the slewing lifting plate 19, a thrust roller bearing 21 is tightly attached to the lower end of the locking plate 20, the thrust roller bearing 21 is embedded and installed on the outer side of the upper end of the slewing lifting plate 19, and the middle of the upper end of the slewing lifting plate 19 penetrates to the inner side of the locking plate 20 The middle external thread on the upper end of the rotary lifting plate 19 is connected with a locking nut 22 that is tightly attached to the locking plate 20. The lower bottom surface and the back surface of the rotary support seat 1 are fixed to the mounting base. The supporting cylinder 3 is installed on the cylinder supporting plate 2 of the rotary support seat 1. The supporting connecting sleeve 5 is locked on the piston rod thread of the supporting cylinder 3. The upper end of the supporting connecting sleeve 5 is connected to the rotary lifting plate 19 by screws (the screws do not lock the rotary lifting plate 19 on the supporting connecting sleeve 5. The rotary lifting plate 19 can slide up and down within a certain range. The purpose is that when the upper furnace leg 16 on the furnace head 15 falls on the upper part of the lower furnace leg 17 of the smelting station, the piston rod of the supporting cylinder 3 will not generate a downward pulling force on the furnace head 15 when it contracts). The upper end of the rotary lifting plate 19 is connected to the locking plate 20, and the lower end surface of the locking plate 20 fits the upper end surface of the thrust roller bearing 21 and can rotate freely.

[0019] An upper positioning plate 8 and a lower positioning plate 7 are respectively installed on the upper and lower sides of the left part of the slewing support seat 1, a slewing support shaft 6 is installed between the upper positioning plate 8 and the lower positioning plate 7, a slewing sleeve 4 is rotatably connected to the lower part of the lower positioning plate 7, the lower part of the slewing support shaft 6 passes through the slewing sleeve 4 and is fixed to the upper end of the locking disk 20, a limit block 9 is installed at the lower part of the slewing sleeve 4, and the limit block 9 is stuck in the grooves on both sides of the slewing support shaft 6, a baffle 14 and a connecting plate 18 are respectively installed on both side walls of the slewing sleeve 4, and a slewing sleeve 4 is installed on one side of the lower rear part of the lower positioning plate 7. The rotary cylinder assembly is connected to the connecting plate 18, and the lower end of the lower positioning plate 7 and the limit plates 12 are fixed on both sides of the baffle 14. The limit screws 13 are installed in the limit plates 12. The rotary cylinder assembly includes a rotary cylinder 10 and a rotary cylinder seat 11. The rotary cylinder seat 11 is welded to the lower positioning plate 7. The rotary cylinder 10 is hinged in the rotary cylinder seat 11. The end of the piston rod of the rotary cylinder 10 is connected to the connecting plate 18. The upper end surface of the locking plate 20 is fitted with the lower end of the rotary support shaft 6 and is locked by screws. The rotary support shaft 6 is installed between the upper positioning plate 8 and the lower positioning plate 7 on the slewing support seat 1 (wherein the upper positioning plate 8 is a detachable structure for installing the slewing support shaft 6), the slewing support shaft 6 can freely rotate and slide up and down between the upper positioning plate 8 and the lower positioning plate 7, and a freely rotatable slewing sleeve 4 is installed below the lower positioning plate 7, the slewing support shaft 6 passes through the slewing sleeve 4, and a limit block 9 is installed at the lower end of the slewing sleeve 4, and the limit block 9 is just stuck in the grooves on both sides of the slewing support shaft 6, so that the slewing support shaft 6 and the slewing sleeve 4 can be guaranteed to rotate in the same direction. At the same time, the slewing support shaft 6 can slide freely up and down. There are positioning baffles 14 and connecting plates 18 connected to the front end of the piston rod of the slewing cylinder 10 on the side wall of the slewing sleeve 4. The piston rod of the slewing cylinder 10 is rotatably connected to the connecting plate 18. Two limit plates 12 are welded under the lower positioning plate 7. The two limit plates 12 are respectively located on both sides of the baffle 14. Limit screws 13 are installed on them for adjusting the limit distance (the limit ensures that the slewing sleeve 4 and the slewing support shaft 6 can rotate up to 45° in both directions). The slewing cylinder 10 is rotatably set on the slewing cylinder seat 11.

[0020] Working principle: when the equipment is stopped, the furnace head 15 is in a falling state, the upper furnace leg 16 falls on the lower furnace leg 17, the supporting cylinder 3 is completely fallen, and the rotary cylinder 10 is in a fully retracted state. The furnace head 15 carries the upper furnace leg 16 in the limit position (working station). Before the equipment is started, the crystallizer and raw materials can be loaded on another idle station. When the equipment is started, the supporting cylinder 3 slowly fills with oil and the piston rises to lift the furnace head 15. The upper furnace leg 16 is separated from the lower furnace leg 17, and the rotary cylinder 10 works. The rotary cylinder 10 slowly fills with oil and the piston rod extends to drive the rotary sleeve 4 to rotate, driving the furnace head 15 to rotate to the limit position (i.e. the working station). At this time, the rotary cylinder 10 maintains pressure, the supporting cylinder 3 slowly discharges oil, the piston rod slowly descends, the furnace head 15 descends and the upper furnace leg 16 is completed. All of them fall on the lower furnace leg 17, and the piston of the supporting cylinder 3 is completely retracted. After the other systems of the equipment are in place, smelting begins. At this time, the crystallizer and raw material loading of another idle station can be completed at the same time. When the equipment is smelting, repeat the above actions, turn the furnace head 15 to the station to be produced, and smelting is carried out at this station. At this time, the products on the completed stations can be taken out, and various tasks such as changing and adding materials can be carried out while waiting for the next smelting of the equipment. In this way, while the equipment is not shut down, one station can be working while another station can replace the crystallizer and take out the product. In addition, a hydraulic cylinder is used as a driving device. The hydraulic cylinder can output a large supporting force and ensure the continuous stability of the output force. Even if there is a slight leakage, it will not affect the output force. Moreover, the use of the hydraulic cylinder does not require a high environment.

Claims

1. A lifting and rotating mechanism for an electroslag remelting furnace, comprising a rotary support seat (1), characterized in that: A support cylinder (3) is fixedly installed at the lower left part of the slewing support seat (1); the upper part of the piston rod of the support cylinder (3) is threadedly connected to a support connecting sleeve (5); the upper end of the support connecting sleeve (5) is connected to a slewing lifting plate (19) by screws; the upper end of the slewing lifting plate (19) is connected to a locking plate (20); the lower end of the locking plate (20) is tightly attached to a thrust roller bearing (21); the thrust roller bearing (21) is embedded and installed on the outer side of the upper end of the slewing lifting plate (19); an upper positioning plate (8) and a lower positioning plate (7) are respectively installed on the upper and lower sides of the left part of the slewing support seat (1); the upper positioning plate (8) and the lower positioning plate (7) are connected to the upper end of the slewing lifting plate (19); A slewing support shaft (6) is installed between the lower positioning plates (7), and the lower part of the lower positioning plate (7) is rotatably connected to a slewing sleeve (4). The lower part of the slewing support shaft (6) passes through the slewing sleeve (4) and is fixed to the upper end of the locking plate (20). The two side walls of the slewing sleeve (4) are respectively installed with a baffle plate (14) and a connecting plate (18). A slewing cylinder assembly is installed on one side of the rear of the lower part of the lower positioning plate (7), and the slewing cylinder assembly is connected to the connecting plate (18). A limiting plate (12) is fixed at the lower end of the lower positioning plate (7) and located on both sides of the baffle plate (14), and a limiting screw (13) is installed in the limiting plate (12).

2. The lifting and rotating mechanism for an electroslag remelting furnace according to claim 1, characterized in that: A cylinder support plate (2) is provided at the lower left portion of the slewing support seat (1), and the supporting cylinder (3) is fixedly mounted on the upper end of the cylinder support plate (2).

3. The lifting and rotating mechanism for an electroslag remelting furnace according to claim 1, characterized in that: A screw channel is provided in the middle of the upper end of the rotary lifting plate (19), and the screws are movably inserted into the screw channel and fixed to the upper end of the supporting connecting sleeve (5).

4. The lifting and rotating mechanism for an electroslag remelting furnace according to claim 1, characterized in that: The middle of the upper end of the rotary lifting disk (19) penetrates to the inner side of the locking disk (20), and the middle of the upper end of the rotary lifting disk (19) is externally threadedly connected with a locking nut (22) that is tightly attached to the locking disk (20).

5. The lifting and rotating mechanism for an electroslag remelting furnace according to claim 1, characterized in that: A limit block (9) is installed at the lower part of the rotary sleeve (4), and the limit block (9) is clamped in the grooves on both sides of the rotary support shaft (6).

6. The lifting and rotating mechanism for an electroslag remelting furnace according to claim 1, characterized in that: The rotary cylinder assembly comprises a rotary cylinder (10) and a rotary cylinder seat (11); the rotary cylinder seat (11) is welded to a lower positioning plate (7); the rotary cylinder (10) is hinged in the rotary cylinder seat (11); and the end of the piston rod of the rotary cylinder (10) is connected to a connecting plate (18).

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