CN215887114U - Accident gun lifting device for steelmaking oxygen lance - Google Patents
Accident gun lifting device for steelmaking oxygen lance Download PDFInfo
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- CN215887114U CN215887114U CN202122270793.7U CN202122270793U CN215887114U CN 215887114 U CN215887114 U CN 215887114U CN 202122270793 U CN202122270793 U CN 202122270793U CN 215887114 U CN215887114 U CN 215887114U
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Abstract
The utility model relates to a steelmaking oxygen lance accident lance lifting device, which comprises a control circuit, an accident motor, a braking mechanism, a main motor, a speed reducer, a fixed pulley, a winding drum, a steel wire rope, an oxygen lance trolley and an oxygen lance, wherein the speed reducer is provided with double input ends, the two input ends are respectively connected with output shafts of the main motor and the accident motor, the output end of the speed reducer is connected with the winding drum, the winding drum is fixedly connected with one end of the steel wire rope, the steel wire rope bypasses the fixed pulley, the other end of the steel wire rope is fixedly connected with the oxygen lance trolley, the oxygen lance trolley is fixedly connected with the oxygen lance, the output shafts of the main motor and the accident motor are respectively provided with the braking mechanism, the control circuit comprises a UPS uninterrupted power supply and a frequency converter which are sequentially connected, the frequency converter respectively supplies power for the two accident electric cylinders and the accident motor and controls the operation of the accident electric cylinder and the accident motor, the equipment can be driven within 1 second to quickly lift the oxygen lance to the lance changing position.
Description
Technical Field
The utility model relates to the field of molten steel smelting equipment, in particular to an accident gun lifting device for a steelmaking oxygen gun.
Background
The oxygen lance device of the steel-making converter of a steel plant comprises an oxygen lance and an oxygen lance lifting device, is one of important devices of a pure oxygen top-blown converter, and is used for feeding industrial pure oxygen into blown semisteel or molten iron through a high-quality water-cooled oxygen lance to complete the task of smelting steel. The oxygen lance lifting device is an oxygen lance trolley, and the oxygen lance trolley moves to drive the oxygen lance to move, and the oxygen lance lifting device stops oxygen blowing and pulls out the oxygen lance when the oxygen lance trolley completes the operation tasks of smelting, replacing the oxygen lance and the like or fails.
The existing steel mill accident lance lifting system generally adopts a pneumatic motor to lift a lance, and utilizes an air source as power to realize the movement of an oxygen lance trolley, but the system can realize the lance lifting only under the condition of the air source, because the field environment of a converter is poor, the failure rate is increased, and a pneumatic valve cannot be opened frequently, the lifting time of the oxygen lance is influenced, so that the accident cannot be solved in time, and the production and the safety are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a steelmaking oxygen lance accident lance lifting device, which can drive equipment to quickly lift an oxygen lance to a lance changing position within 1 second when a production sudden accident or equipment failure occurs.
In order to achieve the above purpose, the following technical scheme is provided:
a steelmaking oxygen lance accident lance lifting device comprises a control circuit, an accident motor, a braking mechanism, a main motor, a speed reducer, a fixed pulley, a winding drum, a steel wire rope, an oxygen lance trolley and an oxygen lance, wherein the speed reducer is provided with double input ends, the two input ends are respectively connected with output shafts of the main motor and the accident motor, the output end of the speed reducer is connected with the winding drum, the winding drum is fixedly connected with one end of the steel wire rope, the steel wire rope bypasses the fixed pulley, the other end of the steel wire rope is fixedly connected with the oxygen lance trolley, the oxygen lance trolley is fixedly connected with the oxygen lance, the output shafts of the main motor and the accident motor are respectively provided with a braking mechanism, taking the braking mechanism at the side of the accident motor as an example, the braking mechanism comprises a band-type brake, a support rod, a braking connecting rod, a main electric cylinder, an accident electric cylinder and a base, the band-type brake tightly clasps the output shaft of the accident motor and is fixed on the top surface of the base, the brake connecting rod is articulated with band-type brake upper portion, branch is located one side of band-type brake, and its one end and base fixed connection, and its other end is articulated with the brake connecting rod, main electric jar, accident electric jar all are located one side of branch, and both structures are the same, and the bottom all articulates with the base, the equal fixedly connected with push rod of its tailpiece of the piston rod end, be equipped with rectangular hole on the push rod, the brake connecting rod run through two rectangular holes in proper order and with the bottom butt in rectangular hole, control scheme is including consecutive UPS uninterrupted power source, converter, the converter is two accident electric jars, accident motor power supply respectively and controls its operation.
Preferably, the main motor and the main cylinder are powered by a common power supply to operate, and when the main motor fails, the emergency electric cylinder and the emergency motor are controlled by the UPS to independently operate.
The utility model has the beneficial effects that:
the utility model uses a set of UPS as a public accident power supply, controls the loop to automatically identify the oxygen lance system at the online working position during the accident, adds an independent driving motor and an independent braking mechanism on site, is not influenced by the environment, the public PLC system, the frequency converters of each loop and the fault during the sudden accident, and the computer program shutdown, and can realize the rapid gun lifting.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the braking mechanism of the present invention;
the reference symbols shown in the figures are: 1-accident motor, 2-main motor, 3-speed reducer, 4-fixed pulley, 5-reel, 6-steel wire rope, 7-oxygen lance trolley, 8-oxygen lance, 9-band-type brake, 10-support rod, 11-brake connecting rod, 12-main electric cylinder, 13-accident electric cylinder, 14-base, 15-push rod, 16-elongated hole, 17-UPS uninterrupted power supply, 18-frequency converter and 19-converter.
Detailed Description
The following describes the present design in detail with reference to the accompanying drawings.
As shown in figures 1-2, a steelmaking oxygen lance accident lance lifting device comprises a control circuit, an accident motor 1, a braking mechanism, a main motor 2, a speed reducer 3, a fixed pulley 4, a winding drum 5, a steel wire rope 6, an oxygen lance trolley 7 and an oxygen lance 8, wherein the speed reducer 3 is provided with double input ends, the two input ends are respectively connected with output shafts of the main motor 2 and the accident motor 1, the output end of the speed reducer 3 is connected with the winding drum 5, the winding drum 5 is fixedly connected with one end of the steel wire rope 6, the steel wire rope 6 bypasses the fixed pulley 4, the other end of the steel wire rope is fixedly connected with the oxygen lance trolley 7, the oxygen lance trolley 7 is fixedly connected with the oxygen lance 8, the output shafts of the main motor 2 and the accident motor 1 are respectively provided with a braking mechanism, taking the braking mechanism on the side of the accident motor 1 as an example, the braking mechanism is composed of a band-type brake 9, a support rod 10, a braking connecting rod 11, a main cylinder 12, an accident electric cylinder 13 and a base 14, the band-type brake 9 tightly holds the output shaft of the accident motor 1, the brake connecting rod 11 is hinged with the upper part of the band-type brake 9, the support rod 10 is positioned at one side of the band-type brake 9, one end of the support rod is fixedly connected with the base 14, the other end of the support rod is hinged with the brake connecting rod 11, the main cylinder 12 and the accident electric cylinder 13 are positioned at one side of the support rod 10, the two structures are the same, the bottom parts of the support rod and the base 14 are hinged, the rod end of a piston rod is fixedly connected with a push rod 15, the push rod 15 is provided with a long hole 16, the brake connecting rod 11 sequentially penetrates through the two long holes 16 and is abutted against the bottom part of the long hole 16, a control circuit comprises a UPS uninterrupted power supply 17 and a frequency converter 18 which are sequentially connected, the frequency converter 18 respectively supplies power for the two accident electric cylinders 13 and the accident motor 1 and controls the operation of the accident electric cylinders, wherein the main motor 2 and the main electric cylinder 12 are supplied with power by a common power supply, when the main motor 2 fails, the accident electric cylinders 13 and the accident motor 1 are controlled by the UPS uninterrupted power supply 17 to independently operate, because the push rods 15 respectively connected with the main electric cylinder 12 and the accident electric cylinder 13 are provided with the strip holes 16, when the output ends of the two electric cylinders operate, the brake connecting rod 11 moves in the strip holes 16, the main electric cylinder 12 and the accident electric cylinder 13 do not interfere with each other and operate independently, when the brake connecting rod 11 is lifted, the supporting rod 10 is taken as a fulcrum, the end part of the brake connecting rod 11 applies acting force to the brake pad of the band-type brake 9, the brake pad is separated, the band-type brake 9 releases the output shaft of the motor, the motor can drive the speed reducer 3 to operate, the winding drum 5 rotates, the steel wire rope 6 is pulled to pull the oxygen lance trolley 7, and the oxygen lance 8 is lifted.
Examples
The utility model firstly needs a UPS (uninterrupted power supply) 17 as an accident loop power supply, is provided with 18 frequency converters to drive an accident motor 1 according to the number of field oxygen guns 8, can realize one-to-one or one-to-many (one frequency converter supports single control of a plurality of motors, and realizes automatic switching of oxygen guns in a working position in an electric loop), and the accident motor 1 and a main motor 2 are connected and installed at input shafts at two ends of a speed reducer 3 on site, and the accident motor 1 can select power smaller than the main motor 2.
Carrying out electric accident gun lifting operation: no matter which set of oxygen lance 8 works on the production line, the emergency loop can automatically switch the frequency converter 18 to the loop for hot standby; when an accident occurs, the main motor 2 operates, the main cylinder 12 drives the brake connecting rod 11 to act, the band-type brake 9 is released, the main motor 2 drives the speed reducer 3 to operate, the speed reducer 3 drives the winding drum 5 to rotate, the winding drum 5 winds the steel wire rope 6, the steel wire rope 6 contracts to drive the oxygen lance trolley 7 to move, so that the oxygen lance 8 is lifted out of the converter 19, when the main loop equipment is abnormal and cannot lift the lance due to accident power failure, the main motor 2 cannot work, the UPS (uninterrupted power supply) 17 and the frequency converter 18 are controlled in an independent loop mode and are not interfered by main equipment elements, the accident frequency converter 18 drives the field accident motor 1, the accident cylinder 13 acts, the oxygen lance 8 starts to lift, and stops operating when the lance position is changed, and the gun lifting action is guaranteed to be carried out smoothly.
Claims (2)
1. An accident gun lifting device for a steelmaking oxygen gun is characterized by comprising a control circuit, an accident motor, a braking mechanism, a main motor, a speed reducer, a fixed pulley, a winding drum, a steel wire rope, an oxygen gun trolley and an oxygen gun, wherein the speed reducer is provided with double input ends, the two input ends are respectively connected with the main motor and an output shaft of the accident motor, the output end of the speed reducer is connected with the winding drum, the winding drum is fixedly connected with one end of the steel wire rope, the steel wire rope bypasses the fixed pulley, the other end of the steel wire rope is fixedly connected with the oxygen gun trolley, the oxygen gun trolley is fixedly connected with the oxygen gun, the output shafts of the main motor and the accident motor are respectively provided with a braking mechanism, taking the braking mechanism at the side of the accident motor as an example, the braking mechanism comprises a band-type brake, a supporting rod, a braking connecting rod, a main electric cylinder, an accident electric cylinder and a base, the band-type brake tightly grips the output shaft of the accident motor and is fixed on the top surface of the base, the brake connecting rod is articulated with band-type brake upper portion, branch is located one side of band-type brake, and its one end and base fixed connection, and its other end is articulated with the brake connecting rod, main electric jar, accident electric jar all are located one side of branch, and both structures are the same, and the bottom all articulates with the base, the equal fixedly connected with push rod of its tailpiece of the piston rod end, be equipped with rectangular hole on the push rod, the brake connecting rod run through two rectangular holes in proper order and with the bottom butt in rectangular hole, control scheme is including consecutive UPS uninterrupted power source, converter, the converter is two accident electric jars, accident motor power supply respectively and controls its operation.
2. The steelmaking oxygen lance accident lance lifting device as claimed in claim 1, wherein the main motor and the main cylinder are powered by a common power supply, and when the main motor fails, the accident cylinder and the accident motor are controlled by the UPS to operate independently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122270793.7U CN215887114U (en) | 2021-09-18 | 2021-09-18 | Accident gun lifting device for steelmaking oxygen lance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122270793.7U CN215887114U (en) | 2021-09-18 | 2021-09-18 | Accident gun lifting device for steelmaking oxygen lance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215887114U true CN215887114U (en) | 2022-02-22 |
Family
ID=80471421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122270793.7U Active CN215887114U (en) | 2021-09-18 | 2021-09-18 | Accident gun lifting device for steelmaking oxygen lance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215887114U (en) |
-
2021
- 2021-09-18 CN CN202122270793.7U patent/CN215887114U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 132301 Shengli Street, Mingcheng Town, Panshi City, Jilin City, Jilin Province Patentee after: Panshi Jianlong Steel Co.,Ltd. Address before: 132301 Shengli Street, Mingcheng Town, Panshi City, Jilin City, Jilin Province Patentee before: Jilin Henglian Precision Foundry Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |