CN211564788U

CN211564788U - Automatic cutting device of steelmaking continuous casting system

Info

Publication number: CN211564788U
Application number: CN201922154291.0U
Authority: CN
Inventors: 刘依渠; 池学彬
Original assignee: Yunnan Qu Jing Cheng Gang Iron And Steel Group Co ltd
Current assignee: Yunnan Qu Jing Cheng Gang Iron And Steel Group Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-09-25
Anticipated expiration: 2029-12-05

Abstract

The utility model discloses an automatic cutting device of steelmaking continuous casting system, the power distribution box comprises a box body, fixture, cutting mechanism and return mechanism, fixture includes the horizontal pole, clamping bar and first cylinder, the upper end of two clamping bars is articulated with the both ends of horizontal pole respectively, first through-hole has been seted up to the bottom of box, horizontal installation has two cross axles in the first through-hole, the upper end processing of every clamping bar has the round hole that matches with the cross axle, cutting mechanism includes the horizontal bar, second cylinder and third cylinder, be provided with the cutting arm on the piston rod of third cylinder, the second through-hole has been seted up to the bottom of box, the lower extreme of cutting arm is connected with the cutting torch, it includes the pivot to return the mechanism, driven gear, including a motor, driving gear and gyro wheel, the teeth of a cogwheel has been processed on the wheel face of gyro wheel, the both sides parallel arrangement of box has two tracks, be provided with. The utility model discloses cutting efficiency is high, and job stabilization nature is good, and long service life has apparent economic value and social value.

Description

Automatic cutting device of steelmaking continuous casting system

Technical Field

The utility model relates to a steel smelting technical field, concretely relates to automatic cutting device of steelmaking continuous casting system.

Background

In the existing steel smelting process, molten steel is refined and then is transported to a continuous casting steel system (namely a steelmaking continuous casting system) from a ladle, and the operation process of the steelmaking continuous casting system is as follows: molten steel is conveyed to a rotary table, the rotary table rotates to a pouring position, the molten steel is poured into a tundish, the molten steel is distributed into each crystallizer by a water gap in the tundish, the molten steel is formed in the crystallizer and is rapidly solidified and crystallized into a casting, then the casting is pulled out of the crystallizer under the combined action of a withdrawal and straightening machine and a crystallization vibration device, and a billet is cut into a certain length by a cutting device after cooling and electromagnetic stirring. The existing cutting device generally comprises a cutting mechanism, a synchronizing mechanism, a returning mechanism, a section detector, a sizing mechanism, an oxygen and acetylene pipeline system and the like, wherein when a steel billet is cut, the synchronizing mechanism clamps the steel billet, the steel billet drives the cutting device to synchronously operate and cut the steel billet, after the cutting is finished, a clamp is loosened, the returning mechanism returns the device to the original position to prepare for next cutting, and the reliability and the performance of the cutting device are important factors for improving the production efficiency of steelmaking continuous casting cutting.

Cutting device is also called cutting trolley, main cutting member all installs the top at the steel billet, because the steel billet temperature by the cutting is all very high, wherein contain a large amount of heats, these heats upwards radiate the transmission and absorb for each part of cutting device, make cutting device's life short, the job stabilization nature is poor, ignition reliability and poor stability, not only seriously influence the cutting quality, cutting device's maintenance work load has still been increased, the cost of cutting cost and continuous casting production has been improved, in addition, cutting device still can have when the operation skids, the untimely scheduling running problem of carriage return, influence the speed of continuous casting cutting, quality and efficiency. Therefore, it is objective to develop an automatic cutting device for a steelmaking continuous casting system, which has high cutting efficiency, good working stability and long service life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cutting efficiency is high, and job stabilization nature is good, long service life's steelmaking continuous casting system's automatic cutting device.

The utility model is realized by comprising a box body and a clamping mechanism arranged in the box body, cutting mechanism and return mechanism, fixture includes the horizontal pole and the clamping bar that the symmetry set up in pairs, the mid-mounting of horizontal pole has first cylinder, first cylinder separates into two sections with the horizontal pole, the cylinder body and the piston rod of first cylinder are connected with two sections horizontal poles respectively, the clamping bar from the top down is including the flexion and the vertical portion that link as an organic whole, the flexion upper end of two clamping bars is articulated with the both ends of horizontal pole respectively, the junction of flexion and vertical portion is located the inside of box, first through-hole has been seted up to the bottom of box, stretch out the below of box behind the first through-hole is passed to the lower extreme of the vertical portion of two clamping bars, horizontal installation has two cross axles in the first through-hole, the vertical portion upper end processing of every clamping bar has the round hole, two cross axles are the movable fit in two round holes.

The cutting mechanism comprises a cross bar and a second cylinder, the cylinder body of the second cylinder is arranged at the top in the box body, the end part of a piston rod of the second cylinder is connected with the upper surface of the cross bar, a third cylinder is horizontally arranged on one side of the lower surface of the cross bar, a cutting arm is arranged on a piston rod of the third cylinder, a second through hole is formed in the bottom of the box body, the lower end of the cutting arm penetrates through the second through hole and then extends out of the lower part of the box body, and the lower end of the cutting arm is connected with a cutting gun.

The return mechanism comprises two rotating shafts which are arranged in parallel at intervals, the two rotating shafts penetrate through the two ends of the upper part of the box body and are movably installed at the two ends of the upper part of the box body, a driven gear is installed on one rotating shaft in the box body, a motor is arranged in the box body, a driving gear is installed on an output shaft of the motor and is meshed with the driven gear, two rollers are installed at the two ends of the two rotating shafts outside the box body respectively, gear teeth are machined on the surfaces of the rollers, two tracks are arranged on the two sides outside the box body in parallel, and racks matched with the.

Furthermore, the inner sides of the lower ends of the vertical parts of the two clamping rods are respectively provided with a clamping plate which is convenient to disassemble.

Furthermore, a dovetail sliding groove is formed in the lower surface of the transverse bar, and a sliding rail matched with the dovetail sliding groove is formed in the upper end of the cutting arm.

Furthermore, chain wheels are arranged on the two rotating shafts in the box body, and a chain is arranged between the two chain wheels.

Furthermore, a sealing cover is arranged on the side wall of the cutting arm below the box body, and the upper end of the cutting gun is fixed in the sealing cover through a fastening mechanism.

Furthermore, the fastening mechanism comprises a movable plate and a fastening bolt, the movable plate is arranged inside the sealing cover, a screw hole is processed in the sealing cover, and the threaded end of the fastening bolt is screwed into the screw hole and then connected with the movable plate.

The utility model discloses at the in-process of steelmaking continuous casting, the steel billet of box below is cliied to extension drive clamping bar through first cylinder piston rod, and the steel billet drives whole box and together moves forward, and the box is removing in-process cutting mechanism and is cutting the steel billet, and the back is accomplished in the cutting, and the steel billet is loosened in the shrink of first cylinder piston rod, and the motor is opened and is driven the gyro wheel rotation to drive the box and move backward and get back to the normal position and carry out the cutting of next time steel billet. The utility model discloses in, all install the inside at the box with each part of automatic cutting device, and blow cold wind in the box through the air conditioning import, guarantee the temperature in the box in the suitable operating temperature within range of each part, can avoid each part to damage because of the high temperature of endotherm aftertemperature, effectively prolong the life and the job stabilization performance of whole device, secondly, use through teeth of a cogwheel and rack cooperation between gyro wheel and the track, can guarantee the smooth and easy of cutting device when the carriage return, avoid skidding and the untimely problem of carriage return, guarantee the speed of continuous casting cutting, efficiency and quality. The utility model discloses cutting efficiency is high, and job stabilization nature is good, and long service life has apparent economic value and social value.

Drawings

Fig. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;

FIG. 3 is a schematic cross-sectional view of B-B in FIG. 1;

fig. 4 is a schematic structural view of a fastening mechanism of the present invention;

fig. 5 is a schematic structural diagram of the roller 18 and the rail 20 according to the present invention;

in the figure: 1-box body, 2-cold air inlet, 3-cross bar, 4-clamping bar, 5-first cylinder, 6-first through hole, 7-cross shaft, 8-cross bar, 9-second cylinder, 10-third cylinder, 11-cutting arm, 12-second through hole, 13-cutting gun, 14-rotating shaft, 15-driven gear, 16-motor, 17-driving gear, 18-roller, 19-gear tooth, 20-track, 21-rack, 22-clamping plate, 23-dovetail sliding groove, 24-chain wheel, 25-chain, 26-sealing cover, 27-movable plate, 28-fastening bolt, 29-water cooling layer, 30-cold water inlet and 31-hot water outlet.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited in any way, and any changes or improvements based on the present invention are all within the protection scope of the present invention.

As shown in fig. 1-5, the utility model discloses a box 1 and the fixture of installing in box 1, cutting mechanism and return the mechanism, fixture is used for grasping the steel billet for whole box 1 can be along with the steel billet together removes, and cutting mechanism is used for cutting the steel billet, returns the mechanism and then is used for returning box 1 to the normal position after accomplishing the cutting, and the top of box 1 is provided with air conditioning import 2.

Fixture includes horizontal pole 3 and the clamping bar 4 that the symmetry set up in pairs, the mid-mounting of horizontal pole 3 has first cylinder 5, first cylinder 5 separates into two sections with horizontal pole 3, the cylinder body and the piston rod of first cylinder 5 are connected with two sections horizontal poles 3 respectively, clamping bar 4 from the top down is including the flexion and the vertical portion that are even as an organic whole, the flexion upper end of two clamping bars 4 is articulated with the both ends of horizontal pole 3 respectively, first through-hole 6 has been seted up to the bottom of box 1, stretch out the below of box 1 after the lower extreme of the vertical portion of two clamping bars 4 passes first through-hole 6, horizontal installation has two cross axles 7 in the first through-hole 6, the processing of the vertical portion upper end of every clamping bar 4 has the round hole, two cross axles 7 activity wear to adorn in two round holes respectively.

Cutting mechanism includes horizontal bar 8 and second cylinder 9, the top in box 1 is installed to the cylinder body of second cylinder 9, the upper surface connection of piston rod tip and horizontal bar 8 of second cylinder 9, one side horizontal mounting of 8 lower surfaces of horizontal bar has third cylinder 10, be provided with cutting arm 11 on the piston rod of third cylinder 10, second through-hole 12 has been seted up to the bottom of box 1, stretch out the below of box 1 after the lower extreme of cutting arm 11 passes second through-hole 12, and the lower extreme of cutting arm 11 is connected with cutting gun 13.

The return mechanism comprises two rotating shafts 14 which are arranged in parallel at intervals, the two rotating shafts 14 penetrate through two ends of the upper part of the box body 1 and are movably arranged, a driven gear 15 is arranged on one rotating shaft 14 which is positioned in the box body 1, a motor 16 is arranged in the box body 1, a driving gear 17 is arranged on an output shaft of the motor 16, the driving gear 17 is meshed with the driven gear 15, two rollers 18 are respectively arranged at two ends of the two rotating shafts 14 which are positioned outside the box body 1, gear teeth 19 are processed on the wheel surfaces of the rollers 18, two tracks 20 are arranged on two sides outside the box body 1 in parallel, and racks 21 matched with the gear teeth are arranged on the.

The utility model discloses at steelmaking continuous casting's in-process, the steel billet passes from the below of this device, and when steel billet length reached the requirement, extension drive clamping bar 4 through 5 piston rods of first cylinder cliied the steel billet, and the steel billet drives whole box 1 and together moves forward, and box 1 cuts the steel billet at removal in-process cutting mechanism, and the cutting process is: the third cylinder 10 is started, the third cylinder 10 drives the cutting arm 11 to horizontally move, in the moving process, the cutting gun 13 arranged at the lower end of the cutting arm 11 cuts the steel billet, after the cutting is completed, the third cylinder 10 drives the cutting arm 11 to reset to prepare for next cutting operation, meanwhile, the piston rod of the first cylinder 5 contracts to loosen the steel billet, the motor 16 is started to drive the idler wheel 18 to rotate, and the box body 1 is driven to move backwards to return to the original position to cut the steel billet for the next time. Before cutting, the distance between the cutting gun 13 and the steel billet can be adjusted according to the size and the shape of the steel billet, and the adjusting method comprises the following steps: and starting the second cylinder 9, driving the cross bar 8 to move up and down by the second cylinder 9, driving the cutting arm 11 and the cutting gun 13 to move up and down simultaneously, and stopping the second cylinder 9 when the requirements are met. The utility model installs each part of the automatic cutting device inside the box body 1, and blows cold air into the box body 1 through the cold air inlet 2, the hot air after absorbing heat is discharged from the first through hole 6 and the second through hole 12 at the bottom of the box body 1, in the process of discharging the hot air, the hot air outside the box body 1 is reversely impacted, the hot air can be prevented from entering the box body 1, can effectively ensure that the temperature in the box body 1 is within the proper working temperature range of each component, can avoid the damage of each component due to overhigh temperature after heat absorption, effectively prolongs the service life and the working stability of the whole device, secondly, the roller 18 and the track 20 are matched by the gear teeth 19 and the rack 21, can ensure the smoothness of the cutting device when the vehicle returns, avoid the problems of skidding and untimely vehicle return, and ensure the speed, efficiency and quality of continuous casting cutting.

The inner sides of the lower ends of the vertical parts of the two clamping rods 4 are respectively provided with a clamping plate 22 which is convenient to disassemble. The clamping plate 22 is a component directly contacted with the steel billet, and compared with other components, the working environment is more harsh, the clamping plate is connected to the clamping rod 4 in a convenient dismounting mode, and the clamping plate 22 can be conveniently and quickly replaced when damaged.

The lower surface processing of horizontal bar 8 has dovetail spout 23, and the upper end processing of cutting arm 11 has the slide rail with dovetail spout 12 matched with, through the cooperation of dovetail spout 23 and slide rail, can fix cutting arm 11 on horizontal bar 8 on the one hand, and on the other hand also can provide the effect of direction for cutting arm 11's removal, improves cutting arm 11 stability at the during operation.

Chain wheels 24 are arranged on the two rotating shafts 14 in the box body 1, and a chain 25 is arranged between the two chain wheels 24. The two rotating shafts 14 are connected through the chain 25, so that the two rotating shafts 14 can be ensured to have the same rotating speed, the rotating synchronism of the two rotating shafts 14 is ensured, and compared with belt connection, the sliding phenomenon cannot occur, and the belt connecting device has higher stability and longer service life.

The side wall of the cutting arm 11 positioned below the box body 1 is provided with a sealing cover 26, and the upper end of the cutting gun 13 is fixed in the sealing cover 26 through a fastening mechanism. Through the setting of sealed cowling 26, fix the upper end of cutting torch 13 in sealed cowling 26, simultaneously, also put into sealed cowling 26 with pipelines such as oxygen, acetylene that cutting torch 13 communicates, can prevent to splash the damage to each pipeline in the cutting process.

The fastening mechanism comprises a movable plate 27 and a fastening bolt 28, the movable plate 27 is arranged inside the sealing cover 26, a screw hole is processed on the sealing cover 26, and the threaded end of the fastening bolt 28 is screwed into the screw hole and then connected with the movable plate 27. During installation and disassembly, only the fastening bolt 28 needs to be tightened or loosened, and the installation is convenient and quick.

When the cutting device operates, a large amount of heat that the steel billet distributed out can enter into the inside of box 1 through box 1, in order to block the heat and enter into box 1, the tank wall of box 1 includes skin and inlayer from outside to inside in proper order, the enclosure space that forms between skin and the inlayer is water-cooling layer 29, the bottom of water-cooling layer 29 is provided with cold water inlet 30, the top is provided with hot water outlet 31, in operation, from cold water inlet 30 to water-cooling layer 29 in fill into cold water, discharge from hot water outlet 31 after the cold water absorbs heat, can take away a large amount of heat through water-cooling layer 29, supplementary cold wind cools down each part in to box 1, effectively guarantee the normal continuous operation of each part, secondly, hot water after the heat absorption can lead to the place that needs hot water, can improve steelmaking continuous casting system's waste heat utilization ratio.

Claims

1. The utility model provides a steelmaking continuous casting system's automatic cutting device which characterized in that: the cutting machine comprises a box body (1), and a clamping mechanism, a cutting mechanism and a returning mechanism which are arranged in the box body (1), wherein a cold air inlet (2) is formed in the top of the box body (1);

the clamping mechanism comprises a cross rod (3) and clamping rods (4) which are symmetrically arranged in pairs, the middle part of the cross rod (3) is provided with a first air cylinder (5), the cross rod (3) is divided into two sections by the first air cylinder (5), the cylinder body and the piston rod of the first air cylinder (5) are respectively connected with the two sections of cross rods (3), the clamping rods (4) comprise a bending part and a vertical part which are connected into a whole from top to bottom, the upper ends of the bending parts of the two clamping rods (4) are respectively hinged with the two ends of the cross rod (3), the bottom of the box body (1) is provided with a first through hole (6), the lower ends of the vertical parts of the two clamping rods (4) extend out of the lower part of the box body (1) after passing through the first through hole (6), two transverse shafts (7) are horizontally arranged in the first through hole (6), a round hole is processed at the upper end of the vertical part of each clamping rod (4), and the two transverse shafts (7) are movably arranged in the two round holes in a penetrating manner respectively;

the cutting mechanism comprises a transverse bar (8) and a second cylinder (9), the cylinder body of the second cylinder (9) is installed at the top of the box body (1), the end part of the piston rod of the second cylinder (9) is connected with the upper surface of the transverse bar (8), a third cylinder (10) is horizontally installed on one side of the lower surface of the transverse bar (8), a cutting arm (11) is arranged on the piston rod of the third cylinder (10), a second through hole (12) is formed in the bottom of the box body (1), the lower end of the cutting arm (11) penetrates through the second through hole (12) and then extends out of the lower portion of the box body (1), and the lower end of the cutting arm (11) is connected with a cutting gun (13);

the return mechanism comprises two rotating shafts (14) which are arranged in parallel at intervals, the two rotating shafts (14) penetrate through two ends of the upper portion of the box body (1), a driven gear (15) is installed on one rotating shaft (14) in the box body (1), a motor (16) is arranged in the box body (1), a driving gear (17) is installed on an output shaft of the motor (16), the driving gear (17) is meshed with the driven gear (15), two rollers (18) are installed at two ends of each rotating shaft (14) outside the box body (1), gear teeth (19) are processed on the wheel surface of each roller (18), two rails (20) are arranged on two sides outside the box body (1) in parallel, and racks (21) matched with the gear teeth are arranged on the rails (20).

2. The automatic cutting device for the steelmaking and continuous casting system as claimed in claim 1, wherein the inner sides of the lower ends of the vertical parts of the two clamping bars (4) are respectively provided with a clamping plate (22) which is convenient to disassemble.

3. The automatic cutting device of the steelmaking continuous casting system as claimed in claim 1, wherein a dovetail-shaped sliding groove (23) is formed in the lower surface of the cross bar (8), and a sliding rail matched with the dovetail-shaped sliding groove (23) is formed in the upper end of the cutting arm (11).

4. The automatic cutting device of the steelmaking continuous casting system according to claim 1, characterized in that chain wheels (24) are arranged on both rotating shafts (14) in the box body (1), and a chain (25) is arranged between the two chain wheels (24).

5. The automatic cutting device of the steelmaking continuous casting system as claimed in claim 1, wherein a sealing cover (26) is provided on the side wall of the cutting arm (11) located below the box body (1), and the upper end of the cutting torch (13) is fixed inside the sealing cover (26) through a fastening mechanism.

6. The automatic cutting device of the steelmaking continuous casting system as claimed in claim 5, wherein the fastening mechanism comprises a movable plate (27) and a fastening bolt (28), the movable plate (27) is arranged inside the sealing cover (26), a screw hole is processed on the sealing cover (26), and the threaded end of the fastening bolt (28) is screwed into the screw hole and then connected with the movable plate (27).

7. The automatic cutting device of the steelmaking continuous casting system according to claim 1, characterized in that the wall of the box body (1) comprises an outer layer and an inner layer in sequence from outside to inside, a closed space formed between the outer layer and the inner layer is a water cooling layer (29), a cold water inlet (30) is arranged at the bottom of the water cooling layer (29), and a hot water outlet (31) is arranged at the top.