Novel high-speed air cylinder of copper converter air hole punching machine

Abstract

The utility model relates to the technical field of air cylinders, in particular to a novel high-speed air cylinder of a copper converter air hole punching machine. Comprising a cylinder barrel, a piston rod, a piston rod nut, a sealing assembly, a sealing piston, a cylinder head and a cylinder cover, the cylinder head and the cylinder cover are installed on the two sides of the cylinder barrel respectively, a buffer chamber is arranged in the cylinder barrel, the piston rod is arranged in the buffer chamber, the sealing piston is installed on one side of the piston rod, and the sealing piston is installed in the buffer chamber. The sealing piston is in interference fit with the inner wall of the cylinder barrel, a threaded groove is formed in the other side of the piston rod, a plug rod nut is installed in the threaded groove, and a sealing assembly is arranged between the cylinder barrel and the sealing piston. The sealing assembly is made of fluororubber, so that the temperature resistance of the buffer is improved; the buffer sleeve and the buffer sealing ring are additionally arranged, and impact force generated when the air cylinder moves is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinders, and more particularly to a new high-speed cylinder for a copper converter air eye poking machine. Background Art

[0002] To increase furnace temperature and combustion efficiency, smelting furnaces typically feature air inlets in the furnace walls. These inlets are connected to blast pipes connected to fans, providing combustion-supporting gases. Since combustion in smelting furnaces produces a large amount of slag, this often clogs the air inlets, preventing the blast pipes from being inserted. Currently, unclogging air inlets is mostly done manually, which is not only inefficient but also labor-intensive, requiring high temperatures and adversely affecting operator health. Furthermore, the dredging device, driven by high-speed cylinders and motors, is prone to collisions and damage during operation.

[0003] The current publication number is CN216205342U. On October 9, 2021, a new type of converter air eye machine was disclosed. Its air control device is equipped with a high-speed cylinder. By providing a two-stage cylinder for longitudinal power device, as a power device, it is more stable and can move in both horizontal and vertical directions. The movable frame can be easily moved along the circular track outside the smelting furnace to clear the air supply holes in all directions of the smelting furnace. However, this existing high-speed cylinder does not have high temperature resistance and is easily damaged in high temperature environments. The sealing performance is not strong, and dust can easily follow the cylinder piston rod into the cylinder to damage the cylinder, reduce the service life of the cylinder, and increase maintenance costs. At the same time, the working efficiency of the cylinder is also low.

[0004] Therefore, it is an urgent problem for technical personnel in this field to provide a new type of high-speed cylinder for a copper converter air eye machine that has excellent sealing performance and high temperature resistance and can effectively prevent external dust from entering. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a new high-speed cylinder for a copper converter tuyere-poking machine with high working efficiency and excellent high-temperature resistance.

[0006] To achieve the above objectives, the present invention provides the following technical solutions, which mainly include:

[0007] A new type of high-speed cylinder for a copper converter air eye machine includes a cylinder barrel, a piston rod, a plug rod nut, a sealing assembly, a sealing piston, a cylinder head and a cylinder cover. The cylinder head and the cylinder cover are respectively installed on both sides of the cylinder barrel. A buffer chamber is provided inside the cylinder barrel, and a piston rod is provided inside the buffer chamber. A sealing piston is installed on one side of the piston rod, and the sealing piston is installed in the buffer chamber. The sealing piston has an interference fit with the inner wall of the cylinder barrel. A threaded groove is provided on the other side of the piston rod, and a plug rod nut is installed on the threaded groove. A sealing assembly is provided between the cylinder barrel and the sealing piston. A buffer sealing ring is provided on the side of the cylinder barrel close to the cylinder head, and a buffer sealing ring is provided on the side of the cylinder barrel close to the cylinder cover.

[0008] Preferably, the sealing assembly includes a seal, a guide ring, a buffer sleeve and a buffer piston, the piston rod is provided with a buffer sleeve, the buffer sleeve is provided with a buffer piston, the sealing piston is installed on the buffer piston, and the sealing piston is provided with a seal and a guide ring.

[0009] Preferably, a dustproof sealing ring is provided between the cylinder head and the piston rod.

[0010] Preferably, air supply and exhaust holes are provided on both sides of the cylinder.

[0011] Preferably, a pressure relief valve is provided at the connection between the air supply and exhaust through holes on both sides and the buffer chamber.

[0012] Preferably, the cylinder head and the cylinder cover are mounted on the cylinder barrel by first bolts.

[0013] Preferably, the cylinder can be mounted on the converter air eye machine via a second bolt.

[0014] Preferably, the seal, buffer sleeve, buffer seal ring, buffer piston and dustproof seal ring are made of fluororubber.

[0015] Preferably, the cylinder barrel is made of hard acid-resistant aluminum; the piston rod is made of galvanized hard alloy steel; and the surfaces of the cylinder head and cylinder cover are galvanized.

[0016] It can be seen from the above technical solutions that compared with the existing technology, the sealing component of the utility model adopts fluororubber material to improve the temperature resistance of the buffer to adapt to the high temperature of the smelting furnace, and can cope with high-speed and high-load occasions. At the same time, it can extend the service life of the cylinder body itself, improve product utilization efficiency, add a buffer sleeve and a buffer sealing ring, reduce the impact force during cylinder movement, and thus enhance the service life. A dustproof sealing ring is provided between the cylinder head and the piston rod to prevent dust and molten steel from splashing and damaging the piston rod and the sealing system. The diameter of the cylinder port is enlarged to provide a larger air intake volume corresponding to high-speed requirements, helping the air eye machine to increase the poking force and poking speed, and solve the problem of stuck rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0019] Figure 2 It is a side structural schematic diagram of the present utility model.

[0020] Figure 3 It is a structural diagram of the present utility model.

[0021] Explanation of the accompanying drawings: 1-cylinder barrel, 2-piston rod, 3-plug rod nut, 4-first bolt, 5-seal, 6-guide ring, 7-buffer sleeve, 8-air supply and exhaust through hole, 9-sealing piston, 10-buffer piston, 11-dustproof sealing ring, 12-cylinder head, 13-cylinder cover, 14-buffer sealing ring, 15-second bolt, 16-buffer chamber, 17-pressure relief valve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example

[0024] A new type of high-speed cylinder for copper converter air eye machine, such as Figures 1 to 3 As shown, it includes a cylinder barrel 1, a piston rod 2, a plug rod nut 3, a sealing assembly, a sealing piston 9, a cylinder head 12 and a cylinder cover 13. The cylinder head 12 and the cylinder cover 13 are respectively installed on both sides of the cylinder barrel 1. A buffer chamber 16 is provided inside the cylinder barrel 1, and a piston rod 2 is provided inside the buffer chamber 16. A sealing piston 9 is installed on one side of the piston rod 2, and the sealing piston 9 is installed in the buffer chamber 16. The sealing piston 9 is interference fit with the inner wall of the cylinder barrel 1. A threaded groove is provided on the other side of the piston rod 2, and a plug rod nut 3 is installed on the threaded groove. A sealing assembly is provided between the cylinder barrel 1 and the sealing piston 9.

[0025] In order to further optimize the above solution, the sealing assembly includes a seal 5, a guide ring 6, a buffer sleeve 7 and a buffer piston 10. The piston rod 2 is provided with a buffer sleeve 7, the buffer sleeve 7 is provided with a buffer piston 10, the sealing piston 9 is installed on the buffer piston 10, and the sealing piston 9 is provided with a seal 5 and a guide ring 6.

[0026] In order to further optimize the above solution, the buffer sleeve 7 is lengthened to absorb the speed and mass of greater energy and improve the cylinder buffer efficiency.

[0027] In order to further optimize the above solution, a buffer seal ring 14 is provided on the side of the cylinder barrel 1 close to the cylinder head 12 , and a buffer seal ring 14 is provided on the side of the cylinder barrel 1 close to the cylinder cover 13 .

[0028] In order to further optimize the above scheme, the high-speed cylinder has a fast speed and a large output, which is prone to the problem of large impact. This application adds a buffer seal ring 14 to improve the cylinder buffering capacity from high speed and low load to medium and low speed and high load, and improve the problem of large cylinder impact force.

[0029] In order to further optimize the above solution, a dustproof sealing ring 11 is provided between the cylinder head 12 and the piston rod 2 to effectively prevent external dust from entering the cylinder and extend the service life of the cylinder.

[0030] In order to further optimize the above solution, air supply and exhaust through holes 8 are opened on both sides of the cylinder 1. The diameter of the air supply and exhaust through holes 8 is thickened to correspond to the high-speed drive of the piston rod 2.

[0031] In order to further optimize the above solution, pressure relief valves are provided at the connections between the air supply and exhaust through holes 8 on both sides and the buffer chamber 16 .

[0032] In order to further optimize the above solution, the cylinder head 12 and the cylinder cover 13 are mounted on the cylinder barrel 1 by means of first bolts 4 .

[0033] In order to further optimize the above solution, the cylinder 1 can be installed on the converter tuyere machine through the second bolt 15.

[0034] In order to further optimize the above solution, the seal 5, buffer sleeve 7, buffer seal ring 14, buffer piston 10 and dustproof seal ring 11 are made of fluororubber material, which can cope with high temperature operating environment.

[0035] In order to further optimize the above solution, the cylinder barrel 1 is made of hard acid-resistant aluminum; the piston rod 2 is made of galvanized hard alloy steel; and the surfaces of the cylinder head 12 and the cylinder cover 13 are galvanized.

[0036] In order to further optimize the above solution, the diameter of the cylinder port is enlarged to provide a larger air intake volume corresponding to high-speed requirements. The high-speed cylinder helps the air eye machine to increase the poking force and poking speed, and solve the problem of the stuck rod.

[0037] In order to further optimize the above solution, the present application provides a new high-speed cylinder for a blowhole machine.

[0038] Working principle: When this device is used, when compressed gas enters the cylinder from the air supply and exhaust through hole 8 near the cylinder head 12, it pushes the sealing piston 9, forcing the piston rod 2 to retract into the cylinder 1. When compressed gas enters the cylinder from the air supply and exhaust through hole 8 near the cylinder cover 13, it pushes the sealing piston 9, forcing the piston rod 2 to be pushed out. Air supply devices are installed on both sides of the air supply and exhaust through hole 8 to control the piston rod 2 to make lateral translation movement inside the cylinder 1. The seal 5, buffer sleeve 7, and buffer seal ring 14 ensure the airtightness inside the cylinder 1.

[0039] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0040] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A new type of high-speed cylinder for a copper converter air eye machine, characterized in that: It includes a cylinder barrel, a piston rod, a plug rod nut, a sealing assembly, a sealing piston, a cylinder head and a cylinder cover. The cylinder head and the cylinder cover are respectively installed on both sides of the cylinder barrel. A buffer chamber is provided inside the cylinder barrel, and a piston rod is provided inside the buffer chamber. A sealing piston is installed on one side of the piston rod, and the sealing piston is installed in the buffer chamber. The sealing piston has an interference fit with the inner wall of the cylinder barrel. A threaded groove is provided on the other side of the piston rod, and a plug rod nut is installed on the threaded groove. A sealing assembly is provided between the cylinder barrel and the sealing piston. A buffer sealing ring is provided on the side of the cylinder barrel close to the cylinder head, and a buffer sealing ring is provided on the side of the cylinder barrel close to the cylinder cover.

2. A new type of high-speed cylinder for a copper converter air eye-poking machine according to claim 1, characterized in that: The sealing assembly includes a sealing member, a guide ring, a buffer sleeve and a buffer piston. The piston rod is provided with a buffer sleeve, the buffer sleeve is provided with a buffer piston, the sealing piston is installed on the buffer piston, and the sealing piston is provided with a sealing member and a guide ring.

3. A new type of high-speed cylinder for a copper converter air eye-poking machine according to claim 1, characterized in that: A dustproof sealing ring is arranged between the cylinder head and the piston rod.

4. A new type of high-speed cylinder for a copper converter air eye-poking machine according to claim 1, characterized in that: Air supply and exhaust through holes are provided on both sides of the cylinder barrel, and pressure relief valves are provided at the connection between the air supply and exhaust through holes on both sides and the buffer chamber.

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