Special iron notch mud sleeve cleaning tool with centering rod

Abstract

The utility model provides a special iron notch mud sleeve cleaning tool with a centering rod, and aims to improve the iron notch damaged mud sleeve cleaning and trimming efficiency. The device consists of a rotating plate 1, a screwed plug 2, a centering rod 3 and a drill bit 4, and is matched with an iron notch tapping machine for use; according to the specific structure, three holes are machined in a rotating plate 1, and internal threads of a screw tap twisted thread are left-handed; the screwed plugs 2 screwed on the two holes on the outer side of the rotating plate 1 are provided with external threads, and the two drill bits 4 are fixed on the rotating plate 1 by the screwed plugs 2; a second-step plummer block of the centering rod 3 is assembled with a middle hole of the rotating plate 1 through an external thread, an internal thread is machined in the large-head end of the first-step plummer block, and rotating power is input after the first-step plummer block is connected with an iron notch tapping machine drill rod; and the small head end of the centering rod 3 is inserted into the iron notch pre-drilling hole. The device has the advantages that the structure is simple, the practicability is high, the device is matched with an iron notch tapping machine for use, the centering rod plays a role in fixing the rotating center during drilling and cleaning of an iron notch mud sleeve, and rapid cleaning of iron notch residual mud sleeves and coagulated slag iron is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of auxiliary tools for cleaning and maintaining the taphole of an ironmaking blast furnace, and particularly relates to a special tool for cleaning the taphole mud sleeve with a centering rod. Background Art

[0002] The ambient temperature in the iron mouth area of ​​a blast furnace is high. Damaged iron mouth mud sleeves must be replaced to prevent blockage and mud leakage during the mud removal process. Before replacing the sleeves, damaged sleeves, slag, and other stagnant debris must be manually cleaned. This cleaning process is time-consuming, labor-intensive, and difficult to complete manually. Summary of the Invention

[0003] The utility model provides a cleaning device for iron mouth mud sleeve with a centering rod to improve the cleaning and repairing efficiency of damaged iron mouth mud sleeve, the device consists of a combined structure of a rotating plate 1, a screw plug 2, a centering rod 3 and a drill bit 4, and is used in conjunction with an iron mouth opening machine; the specific structure is: the rotating plate 1 is made of thick steel plate, three holes are processed in the rotating plate 1 by a drilling machine, and the wire is twisted with a tap, and the thread direction of the thread is left-handed; two screw plugs 2 are made of rod material, the screw plugs 2 are externally threaded, and are respectively screwed on the two holes on the outside of the rotating plate 1, and the two drill bits 4 are fixed to the rotating plate 1 by the two screw plugs 2; a centering rod 3 is made of rod material, the large head end of the first-stage shaft seat of the centering rod 3 is internally processed with an internal thread, and after being connected to the drill rod of the iron mouth opening machine, rotating power is input; the small head end of the centering rod 3 is inserted into the pre-drilled hole in the iron mouth; the second-stage shaft seat of the centering rod 3 is externally threaded, and is assembled with the internal threaded hole in the middle of the rotating plate 1.

[0004] The advantages of the utility model are as follows: the iron mouth mud sleeve cleaning device with a centering rod has a simple structure and strong practicality, and can be used in conjunction with an iron mouth opening machine. The centering rod plays the role of fixing the rotation center when drilling and cleaning the iron mouth mud sleeve, thereby realizing rapid cleaning of residual mud sleeve and stagnant slag iron at the iron mouth; it solves the technical problems of ordinary cleaning devices and tools that are difficult to fix (swaying, shaking, deviation, etc.), as well as the problems of long time and incomplete cleaning of the iron mouth mud sleeve, poor working environment for workers, and high labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1 This is a front view of the special tool of the utility model;

[0006] Figure 2 This is a top view of the special tool of the utility model;

[0007] Description of icons: rotating plate 1, screw plug 2, centering rod 3, drill bit 4. DETAILED DESCRIPTION

[0008] 1. Use 20mm thick Q345B steel plate to make a rotating plate 1. The width of the rotating plate 1 is 90mm and the length is 290mm. Use a drilling machine to process three holes in the same line and with equal spacing. The hole spacing is 100mm. Use a tap to twist the wire into an M56*4 internal thread. The thread direction is left-handed.

[0009] 2. Use 42CrMo rod material to make two screw plugs 2. The screw plugs 2 are externally threaded and are used to fix the two drill bits 4 on the holes on both sides of the rotating plate 1;

[0010] 3. A centering rod 3 is made of 42CrMo rod material. The large head end of the first-stage shaft seat of the centering rod 3 is processed with a T38*15.63 internal thread, which is used to connect with the drill rod of the opening machine and input rotational power; the small head end of the centering rod 3 is inserted into the pre-drilled hole of the iron mouth to fix the rotation center of the cleaning tool to prevent swinging and shaking.

[0011] 4. The second-stage shaft seat of the centering rod 3 is an M56*4 external thread, which is assembled with the M56*4 internal threaded hole in the middle of the rotating plate 1. All designed connecting threads are left-handed. When the opening machine is opened and rotated to the right, all parts connected by threads will become tighter and tighter, ensuring the reliability of the equipment.

Claims

1. A special tool for cleaning the iron mouth mud sleeve with a centering rod, characterized in that: The special tool consists of a combined structure of a rotating plate (1), a screw plug (2), a centering rod (3) and a drill bit (4), and is used in conjunction with a tapping machine. The specific structure is as follows: the rotating plate (1) is made of thick steel plate, three holes are processed on the rotating plate (1) by a drilling machine, and the wire is twisted with a tap, and the thread direction of the thread is left-handed; two screw plugs (2) are made of rods, and the screw plugs (2) are externally threaded and screwed on the two holes on the outside of the rotating plate (1), and the two drill bits (4) are fixed to the rotating plate (1) with these two screw plugs (2); a centering rod (3) is made of rods, and the large head end of the first-stage pillow block of the centering rod (3) is internally threaded, and after being connected to the drill rod of the tapping machine, rotary power is input; the small head end of the centering rod (3) is inserted into the pre-drilled hole in the tapping; the second-stage pillow block of the centering rod (3) is externally threaded and assembled with the internally threaded hole in the middle of the rotating plate (1).

2. A special tool for cleaning the iron mouth mud sleeve with a centering rod according to claim 1, characterized in that: The rotating plate (1) is made of 20mm thick Q345B steel plate, with a width of 90mm and a length of 290mm. Three holes are machined on the rotating plate (1) along a straight line at equal distances, and the holes are machined with M56×4 internal threads, with a hole spacing of 100mm. The wire plug (2) is made of a rod made of 42CrMo; The centering rod (3) is made of 42CrMo bar material. The first-step pillow block of the centering rod (3) has a T38×15.63 internal thread processed inside the big head end, and the second-step pillow block of the centering rod (3) has an M56×4 external thread, which is assembled with the M56×4 internal threaded hole in the middle of the rotating plate (1).

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