Soot blower shell threaded hole machining equipment

Abstract

The utility model relates to the technical field of threaded hole machining, and discloses soot blower shell threaded hole machining equipment which comprises a first motor, a rotating seat is fixedly connected to an output shaft of the first motor through a coupler, a first groove is formed in the bottom of the rotating seat, and cavities are formed in the left portion and the right portion of the first groove. An electromagnet is fixedly installed in the cavity, springs are fixedly installed in the cavity and located on the upper side and the lower side of the electromagnet correspondingly, iron plates are fixedly installed at the telescopic ends of the springs, limiting blocks are fixedly installed on the sides, away from the springs, of the iron plates, the limiting blocks are movably connected with the first grooves in a sleeving mode, and a threaded cutter is arranged at the bottom of the rotating base; the clamping connection of a limiting block and a second groove is adjusted through an electromagnet, so that the threaded tool is rapidly disassembled and assembled, threaded tools of different specifications can be rapidly replaced, the applicability of the device is improved, the downtime of the device is greatly shortened, the threaded hole machining efficiency is improved, when the threaded tool is damaged, the whole device does not need to be disassembled, and the maintenance efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of thread hole processing technology, and in particular to a thread hole processing device for a soot blower housing. Background Technology

[0002] Soot blowers are important devices used to remove ash and slag buildup on the heating surfaces of boilers and other thermal equipment. They are widely used in industries such as power, chemical, and metallurgy. Their core principle is to use the kinetic energy of the sprayed medium to impact the ash and slag layer on the heating surface, causing it to fall off and be discharged with the flue gas. This keeps the heating surfaces of the equipment clean, improves heat transfer efficiency, and ensures the safe and stable operation of the system. The soot blower shell has multiple threaded holes for easy installation, ensuring the safe operation of the soot blower.

[0003] In existing technologies, thread cutters are typically used to machine threaded holes in sootblower housings. Traditional fixing methods often involve bolt fastening. Changing thread cutters requires disassembling multiple parts with the aid of tools, resulting in long processing times for each cutter change and frequent equipment downtime. This severely impacts the efficiency of threaded hole machining, and the device has low applicability. When switching specifications, the original drilling tools must be completely disassembled and the entire set of tooling replaced. When thread cutters are worn or damaged, quick maintenance and replacement are not convenient. Therefore, to solve the above problems, this utility model proposes a threaded hole machining device for sootblower housings. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a threaded hole processing device for a sootblower housing. By adjusting the engagement between the limit block and the groove two using an electromagnet, the thread cutting tool can be quickly disassembled and assembled. This facilitates the rapid replacement of thread cutting tools of different specifications, improves the applicability of the device, significantly reduces equipment downtime, and increases the efficiency of threaded hole processing. When the thread cutting tool is worn or damaged, there is no need to disassemble the entire threaded hole processing device, thus improving the device's maintenance efficiency.

[0005] This utility model provides the following technical solution: a machine for processing threaded holes in a sootblower housing, comprising a motor, a rotating seat fixedly connected to the output shaft of the motor via a coupling, a groove at the bottom of the rotating seat, cavities on the left and right sides of the groove, an electromagnet fixedly installed in each cavity, springs fixedly installed in the cavities on the upper and lower sides of the electromagnets respectively, an iron plate fixedly installed at the extension end of the springs, a limit block fixedly installed on the side of the iron plate away from the springs, the limit block being movably sleeved with the groove, a thread cutter provided at the bottom of the rotating seat, a connecting block fixedly connected to the upper part of the thread cutter, the connecting block fitting into the groove, and two grooves on the left and right sides of the connecting block respectively, the grooves engaging with the limit blocks. By adjusting the engagement of the limit blocks with the grooves by the electromagnet, the thread cutter can be quickly disassembled and assembled, facilitating the rapid replacement of thread cutters of different specifications, improving the applicability of the device, reducing equipment downtime, improving the efficiency of threaded hole processing, and eliminating the need to disassemble the entire device when the thread cutter is damaged, thus enhancing maintenance efficiency.

[0006] Preferably, a base is provided below the threaded cutting tool, and a fixed frame is fixedly installed on the upper part of the base. There are two fixed frames, which are symmetrically distributed on the left and right sides. A second motor is fixedly installed at the front of the left fixed frame. A threaded rod is fixedly connected to the output shaft of the second motor through a coupling. The threaded rod is movably sleeved on the upper part of the inner cavity of the fixed frame. A sliding rod is fixedly sleeved on the upper part of the inner cavity of the right fixed frame. A movable frame is movably sleeved between the threaded rod and the sliding rod. When the second motor is started, it drives the threaded rod to rotate. Driven by the threaded rod and assisted by the sliding rod, the movable frame is moved to a suitable position. Relying on the precision, stability and controllability of mechanical transmission, the orientation parameters are precisely controlled. The self-locking characteristic of the thread is used to stably maintain the position of the processing mechanism and prevent displacement caused by vibration or external force.

[0007] Preferably, the movable frame has a track, in which magnets with opposite magnetic poles are laid sequentially. An electromagnetic slider is movably connected to the track. Electric push rods are fixedly installed at the front and rear ends of the electromagnetic slider. A lifting plate is fixedly installed at the telescopic end of the electric push rod. A motor is fixedly installed on the lifting plate and located between the two electric push rods. The output shaft of the motor is movably connected to the lifting plate. When the electromagnetic slider is energized, it slides on the track using electromagnetic properties, driving the mechanism below to move to a designated position. The motor is then turned on, and the thread cutter is rotated through the connection of the rotating seat. The lifting plate is then lowered through the telescopic end of the electric push rod, and the lifting plate drives the thread cutter below it to descend, thereby machining the threaded hole in the sootblower shell.

[0008] Preferably, four hydraulic rods are fixedly installed at the bottom of the inner cavities of the two fixed frames, and the hydraulic rods are symmetrically distributed. The telescopic ends of the hydraulic rods are movably connected to movable blocks via shafts. A rubber clamp is fixedly installed on the side of the movable block away from the hydraulic rod. A support seat is fixedly installed on the base between the two fixed frames. The hydraulic rods drive the rubber clamp to contact the surface of the sootblower shell. The movable block can rotate flexibly to make the rubber clamp fit the shell surface more closely, improving the stability of the sootblower shell and preventing the shell from shifting under the action of cutting force. This allows the thread cutter to cut smoothly along a predetermined trajectory, ensuring that the dimensional accuracy, positional accuracy, and geometric tolerances of the threaded hole meet the design requirements.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. By setting up an electromagnet and a spring to work together, the engagement between the limit block and the second groove is adjusted, enabling quick assembly and disassembly of the thread cutting tool. This facilitates the rapid switching of different specifications of thread cutting tools according to processing needs, adapting to diverse processing tasks and improving the applicability of the device. No additional tools are required for assembly and disassembly, reducing the workload of workers and shortening the time required for traditional replacement methods from several minutes to several seconds. This significantly reduces equipment downtime and greatly improves the thread hole processing efficiency of the device. When the thread cutting tool is worn or damaged, there is no need to disassemble the entire thread hole processing device, thereby improving the maintenance efficiency of the device.

[0011] 2. The hydraulic rod drives the rubber clamp to contact the surface of the sootblower housing. The movable block can rotate flexibly to make the rubber clamp fit the housing surface better, thereby fixing the housing and improving the stability of the sootblower housing. This prevents the housing from shifting under cutting force, reduces cutting vibration, and allows the thread cutter to cut smoothly along the predetermined trajectory, thereby obtaining a smooth thread surface. This reduces the cost of subsequent deburring, grinding and other processes, while also improving the fatigue resistance of the thread and ensuring that the dimensional accuracy, positional accuracy and geometric tolerances of the threaded hole meet the design requirements. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the punching structure of this utility model;

[0014] Figure 3 This is a schematic cross-sectional view of the rotating seat of this utility model;

[0015] Figure 4 This is a schematic diagram of the thread cutting tool structure of this utility model.

[0016] In the diagram: 1. Motor 1; 2. Rotating seat; 3. Groove 1; 4. Cavity; 5. Electromagnet; 6. Spring; 7. Iron plate; 8. Limiting block; 9. Thread cutter; 10. Connecting block; 11. Groove 2; 12. Base; 13. Fixing frame; 14. Motor 2; 15. Threaded rod; 16. Slide rod; 17. Moving frame; 18. Track; 19. Electromagnetic slider; 20. Electric push rod; 21. Lifting plate; 22. Hydraulic rod; 23. Movable block; 24. Rubber clamp; 25. Support seat. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4 A device for machining threaded holes in a sootblower housing includes a motor 1. A rotating seat 2 is fixedly connected to the output shaft of the motor 1 via a coupling. A groove 3 is formed at the bottom of the rotating seat 2. Cavities 4 are formed on both sides of the groove 3. An electromagnet 5 is fixedly installed in each cavity 4. Springs 6 are fixedly installed on the upper and lower sides of the electromagnet 5 in each cavity 4. An iron plate 7 is fixedly installed at the extension end of the spring 6. A limit block 8 is fixedly installed on the side of the iron plate 7 away from the spring 6. The limit block 8 is movably sleeved with the groove 3. A thread cutter 9 is provided at the bottom of the rotating seat 2. A connecting block 10 is fixedly connected to the upper part of the thread cutter 9. The connecting block 10 fits into the groove 3. A second groove 11 is formed on both sides of the connecting block 10. The second groove 11 is engaged with the limit block 8. When the thread cutter 9 needs to be replaced, the electromagnet 5 is energized to attract the iron plate 7. The iron plate 7 moves the limit block 8 into the cavity. 4. In the inner cavity, the locking block 8 and the groove 11 are disconnected. At this time, the spring 6 is compressed to generate elastic potential energy. Then, the thread cutter 9 is moved downward by the engagement of the groove 3 and the connecting block 10 to remove the thread cutter 9 from the rotating seat 2. During installation, the above operation is reversed and the electromagnet 5 is de-energized. The elastic potential energy of the spring 6 is used to make the locking block 8 and the groove 11 re-engage, realizing the quick disassembly and assembly of the thread cutter 9. This is conducive to quickly switching between different specifications of thread cutters 9 according to processing needs, adapting to diverse processing tasks, improving the applicability of the device, and eliminating the need for additional tools to achieve loading and unloading, reducing the labor intensity of workers, shortening the minutes required by the traditional replacement method to a few seconds, greatly reducing equipment downtime, and significantly improving the thread hole processing efficiency of the device. When the thread cutter 9 is worn or damaged, it is not necessary to disassemble the entire thread hole processing device, thereby improving the maintenance efficiency of the device.

[0019] A base 12 is provided below the thread cutter 9. A fixing frame 13 is fixedly installed on the upper part of the base 12. There are two fixing frames 13, which are symmetrically distributed on the left and right sides. A motor 14 is fixedly installed at the front of the left fixing frame 13. A threaded rod 15 is fixedly connected to the output shaft of the motor 14 via a coupling. The threaded rod 15 is movably sleeved in the upper part of the inner cavity of the fixing frame 13. A slide rod 16 is fixedly sleeved in the upper part of the inner cavity of the right fixing frame 13. A movable frame 17 is movably sleeved between the threaded rod 15 and the slide rod 16. A track 18 is provided on the movable frame 17. Magnets with opposite magnetic poles are laid in sequence in the track 18. An electromagnetic slider 19 is movably connected to the track 18. Electric push rods 20 are fixedly installed at the front and rear parts of the electromagnetic slider 19, respectively. A lifting rod is fixedly installed at the telescopic end of the electric push rod 20. A lowering plate 21 is constructed, with motor 1 fixedly mounted on it and positioned between two electric actuators 20. The output shaft of motor 1 is movably connected to the lowering plate 21. Four hydraulic rods 22 are fixedly mounted at the bottom of the inner cavities of the two fixed frames 13, symmetrically distributed. The telescopic ends of the hydraulic rods 22 are movably connected to movable blocks 23 via shafts. A rubber clamp 24 is fixedly mounted on the side of the movable block 23 away from the hydraulic rods 22. A support seat 25 is fixedly mounted on the base 12, positioned between the two fixed frames 13. The dust blower casing is placed on the support seat 25. The hydraulic rods 22 are activated, causing their telescopic ends to contact the rubber clamp 24 with the casing surface. The movable block 23 can rotate flexibly, allowing the rubber clamp 24 to fit more closely to the casing surface, thus securing the casing. To improve the stability of the sootblower housing and prevent displacement under cutting force, reducing cutting vibration, and ensuring smooth cutting of the thread cutter 9 along a predetermined trajectory, a smooth thread surface is obtained, reducing the cost of subsequent deburring and grinding processes. Simultaneously, the fatigue resistance of the thread is improved, ensuring that the dimensional accuracy, positional accuracy, and geometric tolerances of the threaded hole meet design requirements. The motor 14 is started to drive the thread rod 15 to rotate. Driven by the thread rod 15 and assisted by the slide rod 16, the moving frame 17 is moved to the appropriate position. The electromagnetic slider 19 is energized. Since magnets with opposite poles are sequentially laid in the track 18, energizing the electromagnetic slider 19 generates a magnetic force that repels the magnets in the track 18, thus pushing the electromagnetic slider 19 to move. When the slider 19 moves to the track 18 with the next opposite magnetic pole, the electromagnetic slider 19 is energized in the opposite direction, so that the electromagnetic slider 19 and the track 18 maintain a repulsive magnetic force, so that the electromagnetic slider 19 can move continuously. When the electromagnetic slider 19 needs to stop, the direction of the current on the electromagnetic slider 19 is not changed, so that it attracts the magnets laid on the track 18, thereby achieving the purpose of fixing the electromagnetic slider 19. By sliding the electromagnetic slider 19 on the track 18, the mechanism below is driven to move to the designated position. The motor 1 is turned on and the thread cutter 9 is driven to rotate by the connection of the rotating seat 2. Then, the lifting plate 21 is driven to descend by the extension end of the electric push rod 20. The lifting plate 21 drives the thread cutter 9 below it to descend, thereby machining the thread hole of the soot blower shell.

[0020] Working Principle: The soot blower housing is placed on the support 25. The hydraulic rod 22 is activated, causing its extension end to drive the rubber clamp 24 to contact the housing surface. The movable block 23 can rotate flexibly, allowing the rubber clamp 24 to fit more closely to the housing surface, thus fixing the housing. The motor 14 is started, driving the threaded rod 15 to rotate. Under the drive of the threaded rod 15 and with the assistance of the slide rod 16, the moving frame 17 is moved to the appropriate position. The electromagnetic slider 19 is energized. Since magnets with opposite magnetic poles are sequentially laid in the track 18, energizing the electromagnetic slider 19 generates a repulsive magnetic force against the magnets in the track 18, thus pushing the electromagnetic slider 19 to move. When the electromagnetic slider 19 moves to the next track with opposite magnetic poles, the electromagnetic slider 19 is energized in the opposite direction, maintaining a repulsive magnetic force between the electromagnetic slider 19 and the track 18, achieving continuous movement of the electromagnetic slider 19. When the electromagnetic slider 19 needs to stop, the direction of the current on the electromagnetic slider 19 is not changed, maintaining a repulsive magnetic force between it and the magnets laid in the track 18. The electromagnetic slider 19 is fixed by mutual attraction. The sliding of the electromagnetic slider 19 on the track 18 drives the mechanism below to move to the designated position. The motor 1 is turned on and the thread cutter 9 is rotated by the connection of the rotating seat 2. The lifting plate 21 is lowered by the extension end of the electric push rod 20. The lifting plate 21 drives the thread cutter 9 below it to descend, thereby machining the thread hole of the soot blower shell. When the thread cutter 9 needs to be replaced, the electromagnet 5 is energized to attract the iron plate 7. The iron plate 7 drives the limiting block 8 into the cavity 4, thereby breaking the engagement between the limiting block 8 and the groove 11. At this time, the spring 6 is compressed to generate elastic potential energy. The thread cutter 9 is then moved downward by the engagement of the groove 3 and the connecting block 10 to remove the thread cutter 9 from the rotating seat 2. During installation, the above operation is reversed and the electromagnet 5 is de-energized. The elastic potential energy of the spring 6 is used to make the limiting block 8 and the groove 11 re-engage, realizing the quick installation and removal of the thread cutter 9.

Claims

1. A machine for machining threaded holes in a sootblower housing, comprising a motor (1), characterized in that: A rotating seat (2) is fixedly connected to the output shaft of the motor (1) via a coupling. A groove (3) is provided at the bottom of the rotating seat (2). A cavity (4) is provided on the left and right sides of the groove (3). An electromagnet (5) is fixedly installed in the cavity (4). A spring (6) is fixedly installed in the cavity (4) on the upper and lower sides of the electromagnet (5). An iron plate (7) is fixedly installed at the extension end of the spring (6). A limit block (8) is fixedly installed on the side of the iron plate (7) away from the spring (6). The limit block (8) is movably connected to the groove (3). A thread cutter (9) is provided at the bottom of the rotating seat (2). A connecting block (10) is fixedly connected to the upper part of the thread cutter (9). The connecting block (10) fits into the groove (3). A groove (11) is provided on the left and right sides of the connecting block (10). The groove (11) is engaged with the limit block (8).

2. The equipment for processing threaded holes in a sootblower housing according to claim 1, characterized in that: A base (12) is provided below the thread cutting tool (9). A fixed frame (13) is fixedly installed on the upper part of the base (12). There are two fixed frames (13) and they are symmetrically distributed on the left and right. A motor (14) is fixedly installed at the front of the left fixed frame (13). A threaded rod (15) is fixedly connected to the output shaft of the motor (14) through a coupling. The threaded rod (15) is movably sleeved on the upper part of the inner cavity of the fixed frame (13). A sliding rod (16) is fixedly sleeved on the upper part of the inner cavity of the right fixed frame (13). A movable frame (17) is movably sleeved between the threaded rod (15) and the sliding rod (16).

3. The threaded hole processing equipment for a sootblower housing according to claim 2, characterized in that: The movable frame (17) is provided with a track (18), and magnets with opposite magnetic poles are laid in the track (18) in sequence. An electromagnetic slider (19) is movably connected to the track (18). Electric push rods (20) are fixedly installed on the front and rear parts of the electromagnetic slider (19). A lifting plate (21) is fixedly installed on the telescopic end of the electric push rod (20). The motor (1) is fixedly installed on the lifting plate (21) and located between the two electric push rods (20). The output shaft of the motor (1) is movably connected to the lifting plate (21).

4. The equipment for processing threaded holes in a sootblower housing according to claim 2, characterized in that: Hydraulic rods (22) are fixedly installed at the bottom of the inner cavity of the two fixed frames (13). There are four hydraulic rods (22) and they are symmetrically distributed. The telescopic ends of the hydraulic rods (22) are movably connected to movable blocks (23) through shafts. A rubber clamp (24) is fixedly installed on the side of the movable block (23) away from the hydraulic rods (22). A support seat (25) is fixedly installed on the base (12) between the two fixed frames (13).

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