WO2013029309A1

WO2013029309A1 - Rotary, electromagnetic, and flexible anti-swing device

Info

Publication number: WO2013029309A1
Application number: PCT/CN2011/082403
Authority: WO
Inventors: 程杰; 王苏林; 钱力; 胡长庆; 彭放林; 刘超; 贾艳艳
Original assignee: 中冶赛迪工程技术股份有限公司
Priority date: 2011-08-29
Filing date: 2011-11-18
Publication date: 2013-03-07
Also published as: CN102305345B; CN102305345A

Abstract

Disclosed is a rotary, electromagnetic and flexible anti-swing device, comprising a cricoid electromagnet (2), a connecting rod (4) hinged with the axis centre at both sides of the electromagnet (2), an adjusting rod (9) for connecting externally with other equipment and a flexible device for the connection between the connecting rod (4)and the adjusting rod (9). The electromagnet (2) is rotatable about the axis centre. By means of installing a rotary, electromagnetic and flexible anti-swing device instead of a traditional levelling device on a rubber diaphragm sealed gas holder to increase the horizontal component force serving the function of balancing, a piston of the gas holder is not easy to swing and, even if it swings, can return to a horizontal position thereafter.

Description

Rolling electromagnetic flexible anti-swing device

Technical field

The invention relates to a piston balancing device which can be used for a rubber sealed gas cabinet, in particular to a rolling electromagnetic flexible anti-swing device for a rubber membrane sealing gas cabinet.

Background technique

The sealing form of the gas cabinet is divided into two types: dry and wet. The wet gas cabinet with water as the sealing medium has been eliminated. In the dry gas cabinet, there is a gas cabinet sealed with a thin lubricating oil as a sealing medium. The gas film is sealed by a sealing medium, and the gas cabinet is sealed with a dry lubricating oil as a sealing medium. The gas cabinet which uses dry lubricating oil as the sealing medium for sealing is also called the cloning cabinet. Although the gas cabinet has high bearing capacity and the piston runs fast, the leakage rate is large, and the dry lubricating oil is expensive and cannot be recycled. Get promoted.

The gas cabinet sealed by the thin lubricating oil as the sealing medium is widely used due to the good sealing performance. In the gas cabinet sealed by the dilute lubricating oil, the sealing method mainly adopts the metal sliding type mannequin sealing device and the rubber sealing. New cabinet sealing device. However, the current operating speed of the piston of the lean lubricating oil sealed gas cabinet is generally below 2.5m/min, and the operating speed of the piston is difficult to increase. In addition, when the water in the environment is difficult, the use of the thin lubricating oil sealed gas cabinet will be very Big restrictions.

Therefore, people have turned their attention to the rubber membrane sealed gas cabinet that has not been valued for a long time. The rubber membrane sealed gas cabinet has the following advantages: first, no water is needed during operation; secondly, the piston runs fast, making the gas cabinet The throughput is greater. Due to the above two advantages, the rubber membrane sealed gas cabinet has been widely used in converter steelmaking in iron and steel enterprises. Therefore, the rubber membrane sealed gas cabinet is also called the converter cabinet. It has been used in China for nearly 30 years, and the rubber membrane seals the gas. The volume of the cabinet was 80,000 m ³ from the standard volume introduced at that time, and has now developed to have 20,000 m ³ , 30,000 m ³ , 50,000 m ³ , 80,000 m ³ , 100,000 m ³ , 120,000 m ³ and 15 A large family of different specifications such as 10,000 m ^{3 is} used for converter steelmaking with a pressure of 3 kPa or less.

The biggest characteristic of the piston operation of the rubber membrane sealed gas cabinet is that the piston is in suspension state, so the running speed can be very fast, but the piston swing in the suspended state causes certain troubles for the application of the rubber membrane sealing gas cabinet. At present, in order to prevent the piston from swinging, each rubber membrane sealed gas cabinet is equipped with a leveling device. A standard 80,000 m ³ rubber membrane sealed gas cabinet is provided with 6 sets of leveling devices, and the weighting devices of each group of leveling devices are For about 4 tons, a standard 80,000 m ³ rubber membrane sealed gas cabinet is also equipped with 30 columns. Then, the vertical force distributed on each column is about 0.8 tons, but when the piston is tilted, the piston is tilted. The steel rope of the leveling device is only unilaterally stressed, so that the vertical force distributed on the force column is increased to about 1.6 tons. Since the weight of the gas cabinet piston is balanced with the gas pressure, the vertical force is also Balanced, the real balancing force is the horizontal component of the steel rope tension, and this horizontal component is very small, about 12kg ~ 120kg, when the piston is abnormal, because this force is too small, often The piston of the rubber membrane sealed gas cabinet is stuck.

At present, due to the needs of production, a gas cabinet with a one-stage rubber membrane sealing piston has appeared, which is subjected to a working pressure of 3 to 4 times that of a conventional rubber membrane sealed gas cabinet, and even higher, and the piston weight is also higher than that of the conventional rubber. The membrane sealed gas cabinet weighs 3 to 4 times. If the leveling device of the gas box is sealed by a conventional rubber membrane to prevent the piston from tilting, it is easy to cause the piston to tilt and swing uncontrollable.

Chinese Patent No. ZL200620148390.8 discloses a rubber membrane sealed piston gas cabinet comprising a column, a cabinet bottom plate, a piston bottom plate, a lower bracket, a piston bracket, an upper bracket, a rubber curtain, a side panel and a top plate, the side The plate is cylindrical, the column is equidistantly fixed to the outer side of the side plate, the lower bracket is fixed to the inner lower part of the side plate, and the upper bracket can slide up and down along the inner side of the side plate, the upper portion The rubber plate is sealed between the bracket and the side plate, the piston bottom plate is fixed to the bottom of the piston bracket, the piston bracket can slide up and down along the inner side of the upper bracket, and the top of the top plate is provided with a ventilation device An automatic dispersing device is disposed outside the side plate, and further includes a piston leveling device, the piston leveling device includes a weight pulley, a piston pulley, a weight, and a wire rope, and the outer plate is fixed on the outer side of the top plate. Said counterweight pulley, said piston pulley being fixed equidistantly along the inner side of the circumference, said counterweight being connected to one end of said wire rope, suspended by said counterweight pulley outside said side plate; said piston A bracket is coupled to the other end of the wire rope and suspended by the piston pulley in the side plate. The piston leveling device of the rubber membrane sealing gas cabinet can restore the horizontal state after the piston is tilted and swinged to a certain extent, but the horizontal component of the steel wire which fails to solve the balance is small, and the piston is easily stuck. The defect cannot be applied to the larger piston in the one-stage rubber membrane sealed gas cabinet; in addition, when the piston has a special state such as an emergency stop, the steel cord of the leveling device is also easily broken.

Therefore, it is necessary to improve the leveling device of the existing rubber membrane sealing gas cabinet, improve the structure, increase the horizontal component of the balancing effect, make the piston difficult to get stuck, and can be applied to a one-stage rubber membrane sealing gas. The piston of the cabinet is anti-swinging.

Summary of the invention

The technical problem to be solved by the invention is to propose a rolling electromagnetic flexible anti-swing device for a rubber membrane sealed gas cabinet, which can make the gas cabinet piston not easy to swing and even after swinging, by increasing the horizontal component of the balancing action. Quickly return to the equilibrium position.

To achieve the above technical object, the rolling electromagnetic flexible anti-swing device of the present invention comprises a wheel-shaped electromagnet, a connecting rod hingedly connected to both axial axes of the electromagnet, an adjusting rod for externally connecting other devices, and the like. A flexible device connected between the connecting rod and the adjusting rod, the electromagnet being rotatable about the axis.

Further, the flexible device comprises a spring adjusting bolt and a spring sleeved on the connecting rod, a fixing nut screwed to the adjusting rod, a screwing connection with the spring adjusting bolt, and an outer cylinder which is matched with the fixing nut and fitted on the fixing nut. The connecting rod is provided with a spring stop, the spring is installed between the spring adjusting bolt and the spring stop, and the end of the outer tube corresponding to the fixing nut is provided with an inwardly extending limit stop The minimum diameter of the limit stop is smaller than the maximum diameter of the fixed nut;

Further, the flexible device comprises: a spring adjusting bolt, the spring adjusting bolt is fixedly connected with the connecting rod; the outer cylinder, one end of the outer cylinder is screwed with the spring adjusting bolt, the other end is set on the adjusting rod, and the outer tube is The end portion of the corresponding side of the adjusting rod is provided with an inwardly extending limit stop; the spring is placed in the outer tube and is fitted on the adjusting rod, the adjusting rod is provided with a spring stop, and the spring is mounted Between the spring stop and the limit stop;

Further, the connecting rod, the adjusting rod and the flexible device are all made of a non-magnetic material;

Further, a non-magnetic outer ring made of a wear-resistant material is disposed on the outer peripheral wall of the electromagnet;

Further, the electromagnet and the pull rod are respectively disposed on the rotating shaft, and a non-magnetic inner collar made of a wear-resistant material is disposed between the electromagnet and the rotating shaft, and a gap fit between the non-magnetic inner collar and the rotating shaft is provided. ;

Further, an electromagnetic control box electrically connected to the electromagnet is further included.

Beneficial effect

1, By providing the rolling electromagnetic flexible anti-swing device of the invention between the piston bracket of the rubber membrane sealing gas cabinet and the side plate, the electromagnet of the anti-pendulum device is adsorbed by the fixed magnetic force and the side plate of the gas cabinet, and is connected A flexible device is disposed between the pull rod and the adjusting rod, so that a pulling force that can move up and down with the piston is formed, and the pulling force can be controlled by adjusting the current; when the piston moves, pulling the adjusting rod to generate a flexible force through the spring, and Under the action of the magnetic force, the electromagnet will be firmly sucked on the side panel of the gas cabinet, so that an approximate horizontal pulling force can be generated on the piston. Although the approximate horizontal pulling force is smaller than the electromagnetic force between the electromagnet and the side plate, The horizontal component generated by the conventional leveling system is much larger. When the piston is oscillated, the horizontal pulling force for balancing can more easily return the piston to the equilibrium position to prevent the piston from getting stuck. In addition, the rolling of the present invention The number of electromagnetic flexible anti-swing devices can be flexibly set because it produces suction on the side plates. According to the traditional vertical pulling force, the maximum force is less than 120kg, and the slightly thick side plate can withstand. Thus, when the force point is increased, the piston is less likely to swing;

2. An anti-swing device can be arranged between the bottom plate of the gas cabinet piston and the side plate, and cooperate with the anti-swing device on the piston bracket to control the piston from the upper and lower ends of the piston to prevent the piston from swinging and enhance the balance of the piston.

DRAWINGS

1 is a schematic structural view of a first embodiment of a rolling type electromagnetic flexible anti-swing device according to the present invention;

Figure 2 is a schematic structural view of a flexible device of the first embodiment;

3 is a schematic structural view of a second embodiment of a rolling electromagnetic flexible anti-swing device according to the present invention;

Figure 4 is a schematic structural view of a flexible device of a second embodiment;

Figure 5 is a schematic cross-sectional view of a rubber membrane sealed gas cabinet using the rolling electromagnetic flexible anti-swing device of the present invention;

Figure 6 is a partial enlarged view of A in Figure 5;

Figure 7 is a plan view of Figure 6;

Figure 8 is a schematic view of the force of the piston during the ascending piston;

Figure 9 is a schematic view of the force applied to the piston during the piston lowering process.

DESCRIPTION OF REFERENCE NUMERALS: 1-non-magnetic outer casing ring; 2-electromagnet; 3-non-magnetic inner collar; 4-connecting tie rod; 5-spring adjusting bolt; 6-outer cylinder; 7-spring; 8--fixing nut; 9-adjustment tie rod; 10-retaining ring; 11-fixed column; 13-electromagnetic control box; 14-magnetic control line; 15-pin; 16-shaft; 17-side panel; 18-column; 19-sealing rubber membrane; 22-piston bracket;

Embodiments of the invention

The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of a first embodiment of a rolling electromagnetic flexible anti-swing device according to the present invention. The rolling electromagnetic flexible anti-swing device of the present embodiment includes an electromagnet 2 having a wheel shape and an electromagnet 2 The connecting rod 4, which is hinged together on both sides, the adjusting rod 9 for externally connecting other devices, and the flexible device for connecting the connecting rod 4 and the adjusting rod 9, the electromagnet 2 is rotatable about the axis.

As shown in FIG. 2, the flexible device comprises a spring adjusting bolt 5 and a spring 7 which are fitted on the connecting rod 4, a fixing nut 8 which is screwed to the adjusting rod 9, a screw connection with the spring adjusting bolt 5, and a fixing nut 8 respectively. The outer cylinder 6 is fitted with the clearance nut and is sleeved on the fixing nut 8. The connecting rod 4 is provided with a spring stopper, the spring stopper is disposed at the end of the connecting rod 4, and the spring 7 is installed between the spring adjusting bolt 5 and the spring stopper. The end of the outer cylinder 6 corresponding to the fixing nut 8 is provided with an inwardly extending limit stop. The minimum diameter of the limiting stopper is smaller than the maximum diameter of the fixing nut 8. When the piston lifts and moves the adjusting rod 9 When the force acting on the limit stop by the fixing nut 8 drives the outer tube 6 to move together with the adjusting rod 9, the spring adjusting bolt 5 is slid in the direction of the connecting rod 4 facing the adjusting rod 9, and the compression spring generates a flexible force. .

By providing the electromagnet 2, the rolling electromagnetic flexible anti-swing device can be adsorbed together with other magnetic tracks made of magnetic material, the magnitude of the magnetic force can be controlled by the magnitude of the current, and the electromagnet can roll on the surface of the magnetic track.

Further, the outer peripheral wall of the electromagnet 2 is provided with a non-magnetic outer ring 1 made of a wear-resistant material, and the non-magnetic outer ring 1 not only has anti-wear performance, but also has the function of isolating a magnetic field, so that the electromagnet 2 and the magnetic track are They are not directly adsorbed together but maintain the magnetic force between them, preventing the electromagnet 2 from being worn and making the electromagnet 2 roll more smoothly on the magnetic track.

Further, the end portion of the connecting rod 4 and the electromagnet 2 is U-shaped, and the electromagnet 2 is placed in the U-shaped slot and is hinged with the connecting rod 4 through the rotating shaft 16, and the electromagnet 2 and the connecting rod 4 are connected. The U-shaped end portion is sleeved on the rotating shaft 16. The rotating shaft 16 of the embodiment adopts a pin. The end of the pin is provided with a pin 15 to prevent the pin from falling off. The electromagnet 2 and the rotating shaft 16 are made of wear-resistant materials. The non-magnetic inner collar 3, the non-magnetic inner collar 3 and the rotating shaft 16 are gap-fitted, and the non-magnetic inner collar 3 can prevent the wear between the electromagnet and the rotating shaft 16, and the non-magnetic inner collar The clearance between the shaft 3 and the rotating shaft 16 makes the electromagnet 2 more convenient to rotate.

Further, the connecting rod 4, the adjusting rod 9 and the flexible device are made of a non-magnetic material to prevent interference with the magnetic force of the electromagnet 2.

Further, the electromagnet 2 is electrically connected to the electromagnetic control box 13 via the magnetic control line 14, and the anti-swing device can be controlled.

3 and FIG. 4 is a schematic structural view of a second embodiment of the rolling electromagnetic flexible anti-swing device according to the present invention. The flexible device of the rolling electromagnetic flexible anti-swing device of the present embodiment includes: a spring adjusting bolt 5, The spring adjusting bolt 5 is fixedly connected with the connecting rod 4; the outer tube 6 is screwed at one end to the spring adjusting bolt 5, the other end is set on the adjusting rod 9 , and the outer tube 6 is on the side corresponding to the adjusting rod 9 The end portion is provided with an inwardly extending limit stop; a spring 7 is disposed in the outer tube 6 and is fitted on the adjustment rod 9 , the adjustment rod is provided with a spring stop, and the spring stop is disposed on the adjustment rod At the end, the spring 7 is mounted between the spring stop and the limit stop. When the piston lifts and moves the adjustment rod 9, the relative position between the outer tube 6 and the connecting rod 4 is fixed, so the spring stop The compression spring generates a flexible force under the action of the limit stop.

The other structures of the rolling type electromagnetic flexible anti-swing device of the present embodiment are the same as those of the first embodiment, and will not be described one by one.

FIG. 5 is a schematic cross-sectional view showing an embodiment of a rubber membrane sealing gas cabinet using the rolling electromagnetic flexible anti-swing device of the present invention. The rubber membrane sealing gas cabinet includes side plates 17 and is evenly distributed on the outer peripheral wall of the side plate 17. a column 18, a piston mounted inside the side plate 17 and movable up and down along the side plate 17, a sealing rubber film 19 for sealing between the piston and the side plate 17, and a gas pipe for gas inlet and outlet, the piston including the piston at the upper portion The bracket 22 and the piston bottom plate 25 fixed to the bottom of the piston bracket 22 are evenly disposed between the piston bracket and the side plate with an anti-swing device.

As shown in FIG. 6 and FIG. 7, the anti-swing device includes an electromagnet 2 in the shape of a wheel, a connecting rod 4 hingedly coupled to the axial center of both sides of the electromagnet 2, and a piston fixing column fixedly disposed at the top end of the piston holder 22. 11 hinged adjusting rod 9 and a flexible device for connecting the connecting rod 4 and the adjusting rod 9 , the electromagnet 2 is adsorbed on the side plate 17 by magnetic force, and the electromagnet 2 can roll up and down along the side plate 17 to fix the column 11 A fixing ring 10 is arranged on the upper end, and the end of the adjusting rod 9 is arranged as a hook, and the hook of the adjusting rod 9 hooks the fixing ring 10 to realize the joint between the adjusting rod 9 and the piston bracket 22.

By providing an anti-swing device between the piston bracket 22 and the side plate 17 of the rubber membrane sealing gas cabinet, the electromagnet 2 of the anti-pendulum device is attracted to the side plate 17 by magnetic force, and is connected to the tie rod 4 and the adjustment rod 9 The flexible device is disposed so as to form a pulling force on the piston bracket 22 that can move up and down with the piston. The magnitude of the pulling force can be controlled by adjusting the current; when the piston moves, the adjusting lever is pulled to generate a flexible force through the flexible device. Under the action of the magnetic force, the electromagnet 2 will be firmly sucked on the side panel 17 of the gas cabinet, so that an approximately horizontal pulling force can be generated on the piston. This approximate horizontal pulling force is smaller than between the electromagnet 2 and the side plate 17. The electromagnetic force, but much larger than the horizontal component generated by the traditional leveling system. When the piston is oscillating, the horizontal pulling force of the balancing function can more easily return the piston to the equilibrium position to prevent the piston from getting stuck; The number of anti-swing devices can be flexibly set because it produces suction to the side plates, and this suction force is converted into horizontal force according to the traditional vertical pulling force. Maximum less than 120kg, thicker side plate 17 can bear, so, stress points, and much less prone to swing the piston.

By providing a flexible device to generate a flexible force, the anti-swing device can be appropriately elongated and shortened within a certain range to prevent a rigid impact force on the anti-swing device due to the swing of the piston. If the rigid impact force is large enough, electromagnetic The iron 2 is pulled away from the side panel 17, so that the anti-swing device cannot lose its effect on the horizontal pulling force that exerts a balance on the piston.

As shown in FIG. 8 , it is a schematic diagram of the force of the piston during the ascending of the piston. The electromagnet 2 and the side plate have a magnetic force Fc. The spring is compressed to generate an elastic force Ft, and the piston generates a tensile force Fz facing the side plate 17, and is evenly distributed. All the anti-swing devices around the piston can generate a pulling force Fz to the piston to prevent the piston from swinging. In addition, when the piston swings under the action of an external force, the spring force 7 of the anti-swing device of one side increases the elastic force Ft, and the pulling force is increased. When Fz is increased, the spring force Ft generated by the other side spring 7 is small, and the pulling force Fz is small, so that the piston can be restored to the equilibrium position.

As shown in Fig. 9, the force diagram of the piston during the piston lowering process is the same as that of the piston ascending process, and will not be repeated one by one.

In addition, an anti-swing device may be evenly disposed between the piston bottom plate 25 and the side plate 17. The piston bottom plate is provided with a fixing ring, and the anti-swing device is hinged to the fixing ring by the hook of the adjusting rod. By providing an anti-swing device between the piston bottom plate 25 and the side plate 17, and using the anti-swing device disposed between the piston bracket 22 and the side plate 17, the piston is separately controlled from the upper and lower ends of the piston to prevent the piston from swinging and enhancing. The balance of the piston keeps the piston in an equilibrium position. Even if the piston oscillates, the piston can more easily return to the equilibrium position by the action of the anti-swing device at the upper and lower ends of the piston.

Preferably, the electromagnet 2 is disposed in one-to-one correspondence with the column 18, and the path of the electromagnet 2 moving up and down along the side plate 17 coincides with the mounting position between the column 18 and the side plate 17, and the structure can be used to enhance the anti-swing device. The side plate 17 does not deform under the impact of the impact of the anti-swing device, due to the force exerted between the side plates 17.

Preferably, the nozzle of the gas pipe is located at the center of the gas cabinet to achieve uniform gas in and out, and the balance performance of the piston is better.

The rolling electromagnetic flexible anti-swing device of the invention can be used not only in the rubber membrane sealing gas cabinet, but also has other uses, such as being used as a ground anchor, etc., and will not be repeated one by one.

The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to be limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art Modifications or equivalents are intended to be included within the scope of the appended claims.

Claims

The utility model relates to a rolling electromagnetic flexible anti-swing device, which comprises: an electromagnet (2) with a wheel shape, a connecting rod (4) hinged with both axial axes of the electromagnet (2), and is used for external connection. The adjustment lever (9) of the device and a flexible device for connecting the connection between the tie rod (4) and the adjustment rod (9), the electromagnet (7) being rotatable about the axis.
A rolling type electromagnetic flexible anti-swing device according to claim 1, characterized in that said flexible means comprises spring adjusting bolts (5) and springs (7) fitted to the connecting rods (4), and adjusting rods (9) a threaded fixing nut (8), a screwing connection with the spring adjusting bolt (5), and an outer cylinder (6) which is clearance-fitted with the fixing nut (8) and fitted on the fixing nut, the connecting rod (4) a spring stop is provided, the spring (7) is mounted between the spring adjusting bolt (5) and the spring stop, and the end of the outer cylinder (6) corresponding to the fixing nut (8) is provided inward. An extended limit stop, the minimum diameter of the limit stop being smaller than the maximum diameter of the fixed nut (8).
The rolling electromagnetic flexible anti-swing device according to claim 1, wherein the flexible device comprises: a spring adjusting bolt (5), the spring adjusting bolt (5) is fixedly connected with the connecting rod (4); a cylinder (6), one end of which is screwed to the spring adjusting bolt (5), the other end is set on the adjusting rod (9), and the outer tube (6) is corresponding to the side of the adjusting rod (9) The end portion is provided with an inwardly extending limit stop; a spring (7), the spring (7) being placed in the outer cylinder (6) and fitted on the adjustment rod (9), the adjustment rod (9) A spring stop is provided, and the spring is mounted between the spring stop and the limit stop.
The rolling electromagnetic flexible anti-swing device according to any one of claims 1 to 3, characterized in that the connecting rod (4), the adjusting rod (9) and the flexible device are made of a non-magnetic material.
The rolling type electromagnetic flexible anti-swing device according to any one of claims 1 to 3, characterized in that: the outer peripheral wall of the electromagnet (2) is provided with a non-magnetic outer ring made of a wear-resistant material (1) ).
The rolling electromagnetic flexible anti-swing device according to any one of claims 1 to 3, characterized in that the electromagnet (2) and the connecting rod (4) are respectively fitted on a rotating shaft (16), the electromagnet (2) A non-magnetic inner collar (3) made of a wear-resistant material is disposed between the rotating shaft (16), and the non-magnetic inner sleeve (3) is matched with the rotating shaft (16).
The rolling type electromagnetic flexible anti-swing device according to any one of claims 1 to 3, further comprising an electromagnetic control box (13) electrically connected to the electromagnet (2).