Inner wall surface grinding device for slag ladle

Abstract

The invention discloses an inner wall surface grinding device for a slag ladle, and relates to the related technical field of steel smelting. The device comprises a cross beam, a hydraulic cylinder, a base, a transfer strip, U-shaped plates, a base block and a sliding strip, the hydraulic cylinder is fixed to the center of the upper end of the cross beam, a first motor is fixed to the lower plane of the upper portion of the base, a rotating shaft is rotationally connected to the bottom of the base, the U-shaped plates are fixed to the two sides of the transfer strip, and sliding rods are inserted into two parallel supporting arms, away from the transfer strip, of the U-shaped plates; a base block is jointly fixed to the ends, extending out of the U-shaped plate, of the two sliding rods, a second motor is arranged above the base block, and an output shaft of the second motor downwards penetrates through the base block and is fixedly provided with a grinding wheel. Through the arrangement of the cross beam, the hydraulic cylinder, the base, the U-shaped plate, the motor II, the motor I, the grinding wheel, the grinding disc and the base block, the problems that a special grinding device suitable for the inner wall of the slag tank is lacked, the manual grinding treatment effect is poor, and grinding treatment cannot be conducted by adapting to the inner diameter of the slag tank continuously changing are solved.

Description

Technical Field

[0001] The invention belongs to the technical field related to steel smelting, and in particular relates to an inner wall surface grinding device for a slag pot. Background Art

[0002] Slag pot is an important equipment in steel production. It is a bowl-shaped container with lifting trunnions on both sides for holding high-temperature molten slag produced during steel smelting. Some slag pots have a through hole at the bottom when receiving molten steel, which can be used for different functions such as scraping slag, pouring excess, and receiving molten steel. Most slag pots are cast in one piece. The workpieces formed by casting are all blanks. In order to meet the needs of subsequent use, the inner wall surface needs to be polished to keep the surface flat and smooth. However, there are still the following disadvantages in the actual polishing process: First, due to the special structure of the slag pot, most of them are conical structures, so their inner wall must be a curved surface, which means that most grinding structures (grinding machines, grinding belts, etc.) cannot fully contact the entire surface, and there is no special equipment suitable for efficient grinding of slag pots; Secondly, conventional slag pots can only be polished a little bit manually, which is extremely inefficient, and the thickness of the polished position is not uniform, resulting in large errors; Finally, the opening sizes of the slag pots do not vary much, but the inner diameter of its conical structure is constantly changing, and the grinding device needs to adapt to the changes in its inner diameter for use. Summary of the invention

[0003] The purpose of the present invention is to provide a device for grinding the inner wall surface of a slag pot. By arranging a crossbeam, a hydraulic cylinder, a base, a U-shaped plate, a second motor, a first motor, a grinding wheel, a grinding disc, and a base block, the problems of lack of a special grinding device suitable for the inner wall of the slag pot, poor manual grinding effect, and inability to adapt to the grinding treatment of the constantly changing inner diameter of the slag pot are solved.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a device for grinding the inner wall surface of a slag pot, comprising a crossbeam, a hydraulic cylinder, a base, a transfer bar, a U-shaped plate, a base block and a slide bar, wherein the crossbeam is placed above the slag pot, a hydraulic cylinder is fixed at the center of the upper end of the crossbeam, a hydraulic rod at the telescopic end of the hydraulic cylinder penetrates downwardly through the crossbeam and is fixed to the base, a motor is fixed on the lower plane of the upper part of the base, a rotating shaft is rotatably connected to the bottom of the base, and the bottom end of the rotating shaft is fixed to the center of the upper end of the transfer bar; A U-shaped plate is fixed on both sides of the transfer bar, and sliding rods are inserted into the two parallel arms of the U-shaped plate away from the transfer bar. The ends of the two sliding rods extending out of the U-shaped plate are fixed with a base block, and a sliding bar is fixed on the side of the base block between the two sliding bars. A grinding shaft is rotatably connected in the sliding bar, and the bottom end of the grinding shaft extends out of the sliding bar and is fixed with a grinding disc; A second motor is arranged above the base block, and an output shaft of the second motor passes through the base block downward and is fixed with a grinding wheel.

[0005] Furthermore, the output shaft of the motor 1 passes through the base downward and is fixed with a main gear 1, a slave gear 1 is fixed to the middle periphery of the rotating shaft, and the main gear 1 and the slave gear 1 are meshed and connected.

[0006] Furthermore, the opening of the U-shaped plate is located on the side away from the transfer bar, and limiting sliding grooves are provided on the opposite surfaces of the two parallel arms of the U-shaped plate. The end of the sliding bar away from the base block extends into the opening of the U-shaped plate, and both sides of the sliding bar are slidably inserted into the limiting sliding grooves.

[0007] Furthermore, a spring is sleeved outside the sliding rod, and two ends of the spring are respectively fixed to the opposite surfaces of the base block and the U-shaped plate.

[0008] Furthermore, L-shaped brackets are fixed on both sides of the motor 2, the bottom ends of the brackets are fixed to the upper end of the base block, a main gear 2 is fixed on the output shaft of the motor 2 located above the base block, a sliding bar extends upward from the upper end of the grinding shaft and is fixed with a slave gear 2, and the main gear 2 is meshed and connected with the slave gear 2.

[0009] Furthermore, ear plates symmetrically distributed up and down are fixed to both ends of the base block, and a roller is rotatably connected between the two ear plates, and the outer peripheries of the roller and the grinding wheel are in contact with the inner wall of the slag pot.

[0010] Furthermore, side plates are fixed to both ends of the bottom surface of the beam, and two vertical poles are symmetrically fixed to the bottom surface of the beam. The bottom of the vertical poles contacts the upper end of the slag pot, and the vertical poles are closer to the center of the beam than the side plates. An inclined reinforcing plate is commonly fixed to the bottom surface of the beam and the side of the side plate close to the vertical poles.

[0011] Furthermore, a screw rod is threadedly connected in the side plate below the reinforcing plate, and a clamp is rotatably connected to one end of the screw rod close to the center of the beam, and the clamp is clamped at the outer edge of the upper end of the slag pot.

[0012] The present invention has the following beneficial effects: The invention solves the problem of lack of a special grinding device suitable for the inner wall of the slag pot by arranging a crossbeam, a hydraulic cylinder, a base, a U-shaped plate, a second motor, a first motor, a grinding wheel, a grinding disc and a base block; the second motor is used to drive the grinding wheel to rotate, and the grinding wheel is in close contact with the inner wall of the slag pot under the action of a spring, so that the inner wall of the slag pot is ground, and then the first motor works to drive the transfer bar and the U-shaped plate to make a circular motion. At this time, the grinding wheel rotates and also makes a circular motion, so that the inner wall of the slag pot is fully ground in a circle; when the transfer bar and the U-shaped plate run for more than one circle, the hydraulic cylinder works to push the base down, so that the grinding wheel grinds the inner wall of the slag pot at the lower layer, and this cycle is repeated. The whole device is suitable for the grinding treatment of the slag pot, and always keeps in close contact with the inner wall of the slag pot for grinding treatment; until it runs to the bottom of the slag pot, the grinding disc contacts the inner bottom surface of the slag pot, so that a large area of ​​grinding treatment is achieved, and the remaining few gaps can be manually trimmed later.

[0013] The present invention solves the problems of poor manual grinding effect and inconsistent uniformity by arranging a crossbeam, a hydraulic cylinder, a base, a U-shaped plate, a second motor and a first motor; the overall mechanized arrangement is adopted, and each electrical appliance is controlled by a controller, etc., and only manual installation is required. The grinding area is large, and the grinding efficiency is higher and more uniform than manual grinding.

[0014] The present invention solves the problem that the grinding process cannot adapt to the continuous change of the inner diameter of the slag pot by arranging a U-shaped plate, a sliding rod, a spring and a hydraulic cylinder; the spring is used to press the base block so that the grinding wheel always contacts the inner wall of the slag pot, and during the descending process of the base, the U-shaped plate, etc., the spring is continuously compressed, and the sliding rod continuously enters the interior of the U-shaped plate, so that it adapts to the different changes in the inner diameter for grinding processing, and the compression of the spring can still ensure that the grinding wheel always presses against the inner wall of the slag pot, and performs circular motion with the assistance of the roller to maintain stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0016] Figure 1 A three-dimensional diagram of the present invention on a slag pot; Figure 2 This is a cross-sectional view of the present invention when grinding to the bottom of the slag pot; Figure 3 It is a three-dimensional structural diagram of the present invention; Figure 4 A bottom-up stereogram of the present invention; Figure 5 It is a bottom view of the connection between the crossbeam, the base and the hydraulic cylinder of the present invention; Figure 6 It is a connection diagram of the U-shaped plate and the base block of the present invention; Figure 7 It is a structural diagram of the U-shaped plate of the present invention.

[0017] Reference numerals: 1. Beam; 101. Side plate; 102. Reinforcement plate; 103. Vertical pole; 104. Screw; 105. Clamp; 2. Hydraulic cylinder; 3. Base; 301. Motor 1; 3011. Main gear 1; 302. Rotating shaft; 3021. Slave gear 1; 4. Transfer bar; 5. U-shaped plate; 501. Limiting slide groove; 502. Slide bar; 503. Spring; 6. Base block; 601. Motor 2; 602. Bracket; 603. Grinding wheel; 604. Main gear 2; 605. Ear plate; 606. Roller; 7. Slide bar; 701. Grinding shaft; 702. Slave gear 2; 703. Grinding disc. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Specific embodiment 1

[0019] See also Figure 1-7 As shown, the present invention is a device for grinding the inner wall surface of a slag pot, comprising a crossbeam 1, a hydraulic cylinder 2, a base 3, a transfer bar 4, a U-shaped plate 5, a base block 6 and a slide bar 7. The crossbeam 1 is placed above the slag pot, and a hydraulic cylinder 2 is fixed at the center of the upper end of the crossbeam 1. The hydraulic rod at the telescopic end of the hydraulic cylinder 2 penetrates the crossbeam 1 downward and is fixed to the base 3. A motor 301 is fixed on the lower plane of the upper part of the base 3. The bottom of the base 3 is rotatably connected to a rotating shaft 302, and the bottom end of the rotating shaft 302 is fixed to the center of the upper end of the transfer bar 4. When grinding the inner wall of the slag pot, the crossbeam 1 is placed above the slag pot and fixed with relevant components. The hydraulic cylinder 2 can drive the base 3 and the structure below it to rise and fall. The base 3 is provided with a motor 301. The motor 301 can also drive the rotation of the rotating shaft 302, thereby driving the circular motion of the transfer bar 4 and the U-shaped plate 5. A U-shaped plate 5 is fixed on both sides of the transfer bar 4, and a slide bar 502 is inserted into the two parallel arms of the U-shaped plate 5 away from the transfer bar 4. The two slide bars 502 are fixed to a base block 6 at one end extending out of the U-shaped plate 5. A slide bar 7 is fixed on the side of the base block 6 between the two slide bars 502. A grinding shaft 701 is rotatably connected in the slide bar 7, and the bottom end of the grinding shaft 701 extends out of the slide bar 7 and is fixed with a grinding disc 703; The U-shaped plates 5 on both sides of the transfer bar 4 are symmetrically distributed, and are all slidably installed with a slide bar 502. The end of the slide bar 502 is installed with a base block 6 as an installation carrier. The slide bar 7 is located between the two slide bars 502 and is used to install a grinding shaft 701. The rotation of the grinding shaft 701 can drive the rotation of the grinding disc 703 to grind the inner bottom surface of the slag pot; A second motor 601 is disposed above the base block 6, and an output shaft of the second motor 601 passes through the base block 6 downward and is fixed with a grinding wheel 603; The base block 6 is used as a carrier to install the second motor 601 and its related components. When the second motor 601 rotates, it drives the grinding wheel 603 to rotate. The outer periphery of the grinding wheel 603 contacts the inner wall of the slag pot, and the high-speed rotating grinding wheel 603 grinds the inner wall of the slag pot. L-shaped brackets 602 are fixed on both sides of the second motor 601, and the bottom end of the bracket 602 is fixed to the upper end of the base block 6. The output shaft of the second motor 601 located above the base block 6 is fixed with a second main gear 604. The upper end of the grinding shaft 701 extends upward from the slide bar 7 and is fixed with a second slave gear 702, and the second main gear 604 is meshed and connected with the second slave gear 702. The second motor 601 is installed on the base block 6 through the bracket 602. When the second motor 601 is working, it drives the second main gear 604 to rotate. Since the second main gear 604 is meshed with the second slave gear 702, it will be transmitted to the grinding shaft 701 to rotate, thereby rotating the grinding disc 703. When the grinding disc 703 contacts the inner bottom surface of the slag pot, the inner bottom surface of the slag pot will be polished; The specific working principle of this embodiment is as follows: first, the crossbeam 1 is installed above the slag pot, then, the U-shaped plates 5 on both sides of the transfer bar 4 are symmetrically distributed, and the slide rods 502 are all slidably installed. The end of the slide rod 502 is installed on the base block 6 as an installation carrier, and the motor 2 601 is installed on the base block 6 through the bracket 602. When the motor 2 601 is working, it drives the grinding wheel 603 to rotate, and also drives the main gear 2 604 to rotate, which will be transmitted to the grinding shaft 701 to rotate, thereby rotating the grinding disc 703. Under the action of the spring 503 outside the slide rod 502, the outer periphery of the grinding wheel 603 The high-speed rotating grinding wheel 603 contacts the inner wall of the slag pot and grinds the inner wall of the slag pot. A motor 301 is arranged on the base 3. The operation of the motor 301 can also drive the rotation of the rotating shaft 302, thereby driving the circular motion of the transfer bar 4 and the U-shaped plate 5. When the transfer bar 4 and the U-shaped plate 5 rotate for more than one circle, the hydraulic cylinder 2 works to push the base 3 down, so that the grinding wheel 603 grinds the inner wall of the slag pot at the lower layer, and this cycle can be repeated until the grinding disc 703 contacts the inner bottom surface of the slag pot and grinds the inner bottom surface until the grinding is completed. Specific embodiment 2

[0020] See also Figure 3-7 As shown, on the basis of the specific embodiment 1, the output shaft of the motor 1 301 passes through the base 3 downward and is fixed with a main gear 1 3011, and a slave gear 1 3021 is fixed to the outer periphery of the middle part of the rotating shaft 302, and the main gear 1 3011 and the slave gear 1 3021 are meshed and connected; The motor 301 works to drive the main gear 3011 to rotate, thereby meshing the transmission slave gear 3021 to rotate, and then drives the transfer bar 4 to rotate, thereby driving the grinding wheel 603 installed on the U-shaped plate 5 and the base block 6 to move in a circular motion, so that the grinding wheel 603 can rotate on itself and move in a circular motion at the same time, so as to fully grind the inner wall of the slag pot into a circle.

[0021] The opening of the U-shaped plate 5 is located on the side away from the transfer bar 4, and the opposite surfaces of the two parallel arms of the U-shaped plate 5 are provided with limiting slide grooves 501. The end of the slide bar 7 away from the base block 6 extends into the opening of the U-shaped plate 5, and the two sides of the slide bar 7 are slidably inserted into the limiting slide grooves 501.

[0022] A spring 503 is also sleeved outside the slide bar 502, and the two ends of the spring 503 are respectively fixed to the opposite surfaces of the base block 6 and the U-shaped plate 5; During the descending process of the base 3, the U-shaped plate 5, etc., the spring 503 is continuously compressed, and the slide bar 502 continuously enters the interior of the U-shaped plate 5, so that it can adapt to the changes in the inner diameter for grinding. The compression of the spring 503 will still ensure that the grinding wheel 603 is always in close contact with the inner wall of the slag pot, and the slide bar 7 will also continuously enter the opening of the U-shaped plate 5, and maintain stability through the sliding cooperation of the limiting slide groove 501.

[0023] Both ends of the base block 6 are fixed with ear plates 605 which are symmetrically distributed up and down, and a roller 606 is rotatably connected between the two ear plates 605, and the outer peripheries of the roller 606 and the grinding wheel 603 both contact the inner wall of the slag pot; the ear plate 605 is installed with the roller 606, and when the grinding wheel 603 performs a circular motion, the roller 606 will contact the inner wall of the slag pot and perform a circular motion synchronously to maintain the stability of the motion.

[0024] The specific working principle of this embodiment is: the motor 301 works, driving the main gear 3011 to rotate, thereby meshing the transmission slave gear 3021 to rotate, and then driving the transfer bar 4 to rotate, thereby driving the U-shaped plate 5 and the grinding wheel 603 installed on the base block 6 to move in a circular motion. During the circular motion, the roller 606 will contact the inner wall of the slag pot and perform circular motion synchronously to maintain the stability of the motion; during the descent process of the base 3, the U-shaped plate 5, etc., the spring 503 is continuously compressed, and the slide bar 502 continuously enters the interior of the U-shaped plate 5 to adapt to the different inner diameter changes for grinding processing, and the slide bar 7 will also continuously enter the opening of the U-shaped plate 5. Specific embodiment three

[0025] See also Figure 1-5As shown, on the basis of specific embodiments one and two, side plates 101 are fixed to both ends of the bottom surface of the beam 1, and two vertical poles 103 are symmetrically fixed to the bottom surface of the beam 1. The bottom of the vertical pole 103 contacts the upper end of the slag pot, and the vertical pole 103 is closer to the center of the beam 1 than the side plate 101, and an inclined reinforcing plate 102 is fixed to the bottom surface of the beam 1 and the side of the side plate 101 close to the vertical pole 103.

[0026] A screw rod 104 is threadedly connected in the side plate 101 below the reinforcing plate 102 , and a clamping claw 105 is rotatably connected to one end of the screw rod 104 close to the center of the cross beam 1 , and the clamping claw 105 is clamped at the outer edge of the upper end of the slag pot.

[0027] The specific working principle of this embodiment is: when installing the crossbeam 1, place it above the slag pot, the vertical rod 103 contacts the upper end of the slag pot, and then rotate the two screws 104 synchronously to make the clamping claws 105 close to the edge of the slag pot until it is clamped. At this time, the two grinding wheels 603 should both contact the inner wall of the slag pot.

[0028] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A device for grinding the inner wall surface of a slag pot, comprising a crossbeam (1), a hydraulic cylinder (2), a base (3), a transfer bar (4), a U-shaped plate (5), a base block (6) and a slide bar (7), characterized in that: The cross beam (1) is placed above the slag pot, a hydraulic cylinder (2) is fixed at the center of the upper end of the cross beam (1), a hydraulic rod at the telescopic end of the hydraulic cylinder (2) passes through the cross beam (1) downward and is fixed to a base (3), a motor 1 (301) is fixed on the lower plane of the upper part of the base (3), a rotating shaft (302) is rotatably connected to the bottom of the base (3), and the bottom end of the rotating shaft (302) is fixed to the center of the upper end of the transfer bar (4); A U-shaped plate (5) is fixed on both sides of the transfer bar (4), and a slide bar (502) is inserted into the two parallel arms of the U-shaped plate (5) away from the transfer bar (4), and a base block (6) is fixed to one end of the two slide bars (502) extending out of the U-shaped plate (5), and a slide bar (7) is fixed on the side of the base block (6) between the two slide bars (502), and a grinding shaft (701) is rotatably connected in the slide bar (7), and the bottom end of the grinding shaft (701) extends out of the slide bar (7) and is fixed with a grinding disc (703); A second motor (601) is arranged above the base block (6), and an output shaft of the second motor (601) passes through the base block (6) downward and is fixed with a grinding wheel (603).

2. The inner wall surface grinding device for a slag pot according to claim 1, characterized in that: The output shaft of the motor 1 (301) passes through the base (3) downward and is fixed with a main gear 1 (3011), and a slave gear 1 (3021) is fixed on the outer periphery of the middle part of the rotating shaft (302), and the main gear 1 (3011) and the slave gear 1 (3021) are meshed and connected.

3. The inner wall surface grinding device for a slag pot according to claim 1, characterized in that: The opening of the U-shaped plate (5) is located on a side away from the transfer bar (4), and limiting sliding grooves (501) are provided on opposite surfaces of the two parallel arms of the U-shaped plate (5), and one end of the sliding bar (7) away from the base block (6) extends into the opening of the U-shaped plate (5), and both sides of the sliding bar (7) are slidably inserted into the limiting sliding grooves (501).

4. The inner wall surface grinding device for a slag pot according to claim 1, characterized in that: A spring (503) is also sleeved on the outside of the sliding rod (502), and two ends of the spring (503) are respectively fixed to the opposite surfaces of the base block (6) and the U-shaped plate (5).

5. The inner wall surface grinding device for a slag pot according to claim 1, characterized in that: An L-shaped bracket (602) is fixed on both sides of the second motor (601), the bottom end of the bracket (602) is fixed to the upper end of the base block (6), and a main gear (604) is fixed on the output shaft of the second motor (601) located above the base block (6). The upper end of the grinding shaft (701) extends upward through a slide bar (7) and is fixed with a slave gear (702), and the main gear (604) is meshedly connected with the slave gear (702).

6. The inner wall surface grinding device for a slag pot according to claim 1, characterized in that: Both ends of the base block (6) are fixed with ear plates (605) symmetrically distributed up and down, and a roller (606) is rotatably connected between the two ear plates (605), and the outer peripheries of the roller (606) and the grinding wheel (603) are in contact with the inner wall of the slag pot.

7. The inner wall surface grinding device for a slag pot according to claim 1, characterized in that: Side plates (101) are fixed to both ends of the bottom surface of the cross beam (1), and two vertical poles (103) are symmetrically fixed to the bottom surface of the cross beam (1), the bottoms of the vertical poles (103) contact the upper end of the slag pot, and the vertical poles (103) are closer to the center of the cross beam (1) than the side plates (101), and an inclined reinforcing plate (102) is fixed to the bottom surface of the cross beam (1) and a surface of the side plate (101) close to the vertical poles (103).

8. The inner wall surface grinding device for a slag pot according to claim 7, characterized in that: A screw rod (104) is threadedly connected to the side plate (101) below the reinforcing plate (102); one end of the screw rod (104) close to the center of the cross beam (1) is rotatably connected to a clamping claw (105), and the clamping claw (105) is clamped at the outer edge of the upper end of the slag pot.

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