A steel pipe inner wall welding slag cleaning scraper

Abstract

The utility model relates to steel pipe inner wall cleaning technical field discloses a kind of steel pipe inner wall welding slag cleaning scraper, including fixing frame, the top wall front side of the fixing frame is fixedly connected with base, the top wall middle part of the base is installed with fixed seat, the top wall front side of the base is fixedly connected with motor, the output end of the motor is installed with fixed mechanism, the fixed mechanism is used to facilitate installation and disassembly component, the outer wall rear side of the fixed seat is installed with multiple damping mechanisms at equal intervals, the utility model is inserted into the mounting block one of another mounting block end in the mounting block two of the end of clamp block, then fixed sheet is inserted from the left side of mounting block one into the inside of mounting block one and mounting block two, finally screw in bolt two, bolt two is fixed together with mounting block two with fixed sheet, form firm connection, convenient operation, install and disassembly are facilitated to tool bit and handle, improve maintenance efficiency, reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe inner wall cleaning technology, and in particular to a scraper for cleaning welding slag from the inner wall of steel pipe. Background Technology

[0002] The steel pipe inner wall welding slag cleaning scraper is a special tool used to remove welding slag, burrs, and oxide scale from the inner wall of steel pipes (such as welded steel pipes and pipe fittings). Its core objective is to ensure the smoothness of the inner wall of the steel pipe (to avoid affecting fluid transportation, sealing performance, and subsequent coating / lining construction).

[0003] In existing technologies, pressure sensors and vision sensors are added to the cutter head to monitor the scraping force in real time (automatic shutdown when the limit is exceeded) and the cleaning effect (image feedback to avoid missed scraping). However, although carbide cutters are wear-resistant, they are brittle and easily chip when encountering hard slag. Currently, the cutter body is made of carbide with a ceramic coating on the surface, which has high hardness and improved wear resistance. However, the cutter head and handle are mostly integral structures, and the whole machine needs to be replaced after local wear, which is inconvenient to install and disassemble, and has high maintenance costs. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides a scraper for cleaning welding slag on the inner wall of steel pipes, which aims to improve the problem that the existing technology often has an integral structure of the cutter head and handle, which requires replacement of the whole after local wear, making it inconvenient to install and disassemble, and resulting in high maintenance costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a scraper for cleaning welding slag on the inner wall of a steel pipe, comprising a fixed frame, a base fixedly connected to the front side of the top wall of the fixed frame, a fixed seat installed in the middle of the top wall of the base, a motor fixedly connected to the front side of the top wall of the base, a fixing mechanism installed at the output end of the motor, the fixing mechanism being used to facilitate the installation and disassembly of components, and multiple vibration damping mechanisms equidistantly installed on the rear side of the outer wall of the fixed seat, the vibration damping mechanisms being used to reduce the impact of vibration on the structure; the fixing mechanism includes a handle, the handle being fixedly connected to the output end of the motor, the handle being rotatably connected to the inner wall of the fixed seat, a second fixing block fixedly connected to the end of the handle, a first fixing block slidably connected to the outer wall of the second fixing block, and transmission components installed on the outer walls of the first fixing block and the second fixing block.

[0006] As a further description of the above technical solution:

[0007] The transmission assembly includes a housing, which is disposed on the right side of the outer wall groove of fixing block one and fixing block two. A bolt is threadedly connected to the inner wall of the housing. A connecting block is rotatably connected to the left side of the outer wall of bolt one. Multiple connecting rods are equidistantly rotatably connected to the left side of the outer wall of the housing. Multiple fixing rods are equidistantly rotatably connected to the inner wall of the connecting block. One end of two fixing rods is connected to the connecting rod, and the other end of the two fixing rods is fixedly connected to a clamping block.

[0008] As a further description of the above technical solution:

[0009] One end of the clamping block is fixedly connected to mounting block one, and one end of the other clamping block is fixedly connected to mounting block two. The inner walls of mounting block one and mounting block two are slidably connected to fixing plates. The inner wall of the fixing plate is threadedly connected to bolt two, which is threadedly connected to the inner walls of mounting block one and mounting block two.

[0010] As a further description of the above technical solution:

[0011] The vibration damping mechanism includes a limiting block, which is fixedly connected at equal intervals to the rear side of the outer wall of the fixed seat. Multiple cranks are rotatably connected at equal intervals to the bottom wall of the limiting block. A slider is rotatably connected to the lower part of the inner wall of the crank. A sliding rod is slidably connected to the inner wall of the slider. A spring is installed in the middle of the outer wall of the sliding rod. The two ends of the spring are connected to the slider.

[0012] As a further description of the above technical solution:

[0013] A slider is rotatably connected to the lower part of the inner wall of the crank, a slide rod is slidably connected to the inner wall of the slider, and a spring is installed in the middle of the outer wall of the slide rod.

[0014] As a further description of the above technical solution:

[0015] The bottom of the slider is rotatably connected to a crank two, and the lower part of the inner wall of the crank two is rotatably connected to a locking block.

[0016] As a further description of the above technical solution:

[0017] A cutting head is fixedly connected to the end of the fixing block one, and multiple blades are fixedly connected at equal intervals to the outer wall of the cutting head.

[0018] As a further description of the above technical solution:

[0019] A controller is installed on the right side of the outer wall of the mounting bracket, and a display screen is installed on the top wall of the controller.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, rotating bolt one causes the connecting block to move left and right within the outer casing. When the connecting block moves to the left, it pushes the fixing rod. Since the end of the fixing rod is connected to the connecting rod, when the connecting block moves to the left, the connecting rod pulls the fixing rod, causing the fixing rod to rotate to both sides within the connecting block. This causes the fixing rod to open the clamping block. When the connecting block moves to the right, the connecting rod generates an opposite force, pushing the fixing rod to rotate back. This causes the fixing rod to close the clamping block. The movement of the connecting block enables the clamping block to open and close. When installing a new cutter head, the fixing block at the end of the cutter head is aligned with the fixing rod. The outer wall of the second fixed block slides, causing the protruding part of the second fixed block to engage in the slot of the first fixed block. Both the first and second fixed blocks have a groove in the middle of their outer walls. By rotating the first bolt, the clamping block slides in along the groove, allowing the second mounting block at the end of the clamping block to be inserted into the first mounting block at the end of the other clamping block. Then, the fixing plate is inserted from the left side of the first mounting block into the interior of the first and second mounting blocks. Finally, the second bolt is screwed in, fixing the fixing plate and the second mounting block together to form a stable connection. This operation is convenient, facilitating the installation and removal of the cutter head and the handle, improving maintenance efficiency, and reducing maintenance costs.

[0022] 2. In this utility model, the rotation of the blade handle causes the blade to vibrate when cleaning the inner wall of the steel pipe. The vibration is transmitted to the blade handle through the blade head. The vibration collides with the locking block, causing the locking block to compress the top crank two. Crank two drives the slider, and the slider compresses crank one, causing crank one to rotate along the limiting block. The rotation of crank two and crank one pushes the slider to slide on the outer wall of the slide rod and pulls the spring. The spring undergoes elastic deformation, and the spring contraction absorbs and buffers the vibration energy, reducing the vibration frequency of the blade handle, further improving the vibration resistance of the structure, avoiding the blade handle from loosening, wearing or even being damaged due to long-term vibration, and extending the service life of the equipment. Attached Figure Description

[0023] Figure 1 A perspective view of a scraper for cleaning welding slag from the inner wall of a steel pipe, as proposed in this utility model;

[0024] Figure 2 This is a front view of a scraper for cleaning welding slag from the inner wall of a steel pipe, as proposed in this utility model.

[0025] Figure 3 This is a structural breakdown diagram of a scraper for cleaning weld slag from the inner wall of a steel pipe, as proposed in this utility model.

[0026] Figure 4 This is a partial structural breakdown diagram of a scraper for cleaning weld slag from the inner wall of a steel pipe, as proposed in this utility model.

[0027] Figure 5 This is a partial structural diagram of a scraper for cleaning welding slag from the inner wall of a steel pipe, as proposed in this utility model.

[0028] Legend:

[0029] 1. Fixing frame; 2. Base; 3. Motor; 4. Fixing mechanism; 401. Fixing block one; 402. Transmission assembly; 4021. Connecting rod; 4022. Housing; 4023. Bolt one; 4024. Fixing rod; 4025. Connecting block; 403. Fixing block two; 404. Tool holder; 405. Clamping block; 406. Mounting block one; 407. Fixing plate; 408. Bolt two; 409. Mounting block two; 5. Vibration damping mechanism; 501. Limiting block; 502. Crank one; 503. Spring; 504. Slider; 505. Sliding rod; 506. Crank two; 507. Clamping block; 6. Display screen; 7. Controller; 8. Tool head; 9. Blade; 10. Fixing base. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a scraper for cleaning welding slag on the inner wall of a steel pipe, comprising a fixed frame 1, a base 2 fixedly connected to the front side of the top wall of the fixed frame 1, a fixed seat 10 installed in the middle of the top wall of the base 2, a motor 3 fixedly connected to the front side of the top wall of the base 2, the motor 3 being a Y2 series motor with higher efficiency (IE2 energy efficiency) and IP54 protection, a fixing mechanism 4 installed at the output end of the motor 3 for convenient installation and disassembly of components, and multiple vibration damping mechanisms 5 equidistantly installed on the rear side of the outer wall of the fixed seat 10 for reducing the impact of vibration on the structure; the fixing mechanism 4 includes a handle 404, which is fixedly connected to the output end of the motor 3 and rotatably connected to the inner wall of the fixed seat 10, a second fixing block 403 fixedly connected to the end of the handle 404, a first fixing block 401 slidably connected to the outer wall of the second fixing block 403, and a transmission assembly 402 installed on the outer walls of the first fixing block 401 and the second fixing block 403. 02 includes a housing 4022, which is located on the right side of the groove on the outer wall of fixing block 401 and fixing block 403. A bolt 4023 is threaded onto the inner wall of the housing 4022. A connecting block 4025 is rotatably connected to the left side of the outer wall of bolt 4023. Multiple connecting rods 4021 are equidistantly rotatably connected to the left side of the outer wall of the housing 4022. Multiple fixing rods 4024 are equidistantly rotatably connected to the inner wall of the connecting block 4025. One end of two fixing rods 4024 is connected to a connecting block 4025. Connecting rod 4021, the other ends of two fixed rods 4024 are fixedly connected to clamping blocks 405, one end of clamping block 405 is fixedly connected to mounting block 1 406, one end of the other clamping block 405 is fixedly connected to mounting block 2 409, the inner walls of mounting block 1 406 and mounting block 2 409 are slidably connected to fixing plate 407, the inner wall of fixing plate 407 is threadedly connected to bolt 2 408, bolt 2 408 is threadedly connected to the inner walls of mounting block 1 406 and mounting block 2 409;

[0032] Specifically, rotating bolt 4023 causes connecting block 4025 to move left and right within housing 4022. When connecting block 4025 moves to the left, it pushes fixing rod 4024. Since the end of fixing rod 4024 is connected to connecting rod 4021, when connecting block 4025 moves to the left, connecting rod 4021 pulls fixing rod 4024, causing fixing rod 4024 to rotate to both sides within connecting block 4025. This causes fixing rod 4024 to open clamping block 405. When connecting block 4025 moves to the right, connecting rod 4021 generates the opposite force, pushing fixing rod 4024 to rotate. Fixing rod 4024 then closes clamping block 405. The movement of connecting block 4025 allows clamping block 405 to open and close. When installing a new cutter head 8, the end of cutter head 8... The first fixing block 401 slides along the outer wall of the second fixing block 403, so that the protrusion of the second fixing block 403 is engaged in the slot of the first fixing block 401. There is a groove in the middle of the outer wall of both the first fixing block 401 and the second fixing block 403. The first bolt 4023 is rotated so that the clamping block 405 slides in along the groove, so that the second mounting block 409 at the end of the clamping block 405 is inserted into the first mounting block 406 at the end of the other clamping block 405. Then, the fixing piece 407 is inserted from the left side of the first mounting block 406 into the interior of the first mounting block 406 and the second mounting block 409. Finally, the second bolt 408 is screwed in, and the second bolt 408 fixes the fixing piece 407 and the second mounting block 409 together to form a stable connection. The operation is convenient, and it is easy to install and remove the cutter head 8 and the cutter handle 404, which improves maintenance efficiency and reduces maintenance costs.

[0033] Reference Figure 1 , Figure 2 and Figure 5 The vibration damping mechanism 5 includes a limiting block 501, which is fixedly connected at equal intervals to the rear side of the outer wall of the fixed base 10. Multiple cranks 502 are rotatably connected at equal intervals to the bottom wall of the limiting block 501. A slider 504 is rotatably connected to the lower part of the inner wall of the crank 502. A slide rod 505 is slidably connected to the inner wall of the slider 504. A spring 503 is installed in the middle of the outer wall of the slide rod 505. The two ends of the spring 503 are connected to the slider 504. The slider 504 is rotatably connected to the lower part of the inner wall of the crank 502. The slide rod 505 is slidably connected to the inner wall of the slider 504. A spring 503 is installed in the middle of the outer wall of the slide rod 505. A crank 506 is rotatably connected to the bottom of the slider 504. A locking block 507 is rotatably connected to the lower part of the inner wall of the crank 506.

[0034] Specifically, the rotation of the handle 404 causes the blade 9 to vibrate when cleaning the inner wall of the steel pipe. The vibration is transmitted to the handle 404 through the blade head 8. The vibration collidees with the locking block 507, causing the locking block 507 to compress the top crank 2 506. The crank 2 506 drives the slider 504, which in turn compresses the crank 1 502, causing the crank 1 502 to rotate along the limit block 501. The rotation of the crank 2 506 and the crank 1 502 pushes the slider 504 to slide on the outer wall of the slide rod 505 and pulls the spring 503. The spring 503 undergoes elastic deformation, and the contraction of the spring 503 absorbs and buffers the vibration energy, reducing the vibration frequency of the handle 404. This further improves the structure's vibration resistance, prevents the handle 404 from loosening, wearing, or even being damaged due to long-term vibration, and extends the service life of the equipment.

[0035] Reference Figure 1 , Figure 2 and Figure 3 The end of the fixed block 401 is fixedly connected to the cutter head 8, and multiple blades 9 are fixedly connected at equal intervals on the outer wall of the cutter head 8. The right side of the outer wall of the fixed frame 1 is equipped with a controller 7, which is a PLC programmable logic controller 7, Siemens S7-1200 series. The top wall of the controller 7 is equipped with a display screen 6.

[0036] Specifically, the cutter head 8 fixes the blade 9 and transmits the scraping force. It is the connection hub between the blade 9 and the handle 404. The blade 9 directly contacts and peels off the welding slag and burrs from the inner wall of the steel pipe. It is the core working element. The controller 7 receives the signal from the equipment in real time through the cable, converts the signal into digital data, and then displays the information dynamically on the display screen 6.

[0037] Working principle: Rotating bolt 4023 causes connecting block 4025 to move left and right within housing 4022. When connecting block 4025 moves to the left, it pushes fixing rod 4024. Since the end of fixing rod 4024 is connected to connecting rod 4021, when connecting block 4025 moves to the left, connecting rod 4021 pulls fixing rod 4024, causing fixing rod 4024 to rotate to both sides within connecting block 4025. This causes fixing rod 4024 to open clamping block 405. When connecting block 4025 moves to the right, connecting rod 4021 generates the opposite force, pushing fixing rod 4024 to rotate. Fixing rod 4024 then closes clamping block 405. The movement of connecting block 4025 allows clamping block 405 to open and close. When installing a new cutter head 8, the end of cutter head 8... The first fixing block 401 slides along the outer wall of the second fixing block 403, so that the protrusion of the second fixing block 403 is engaged in the slot of the first fixing block 401. There is a groove in the middle of the outer wall of both the first fixing block 401 and the second fixing block 403. The first bolt 4023 is rotated so that the clamping block 405 slides in along the groove, so that the second mounting block 409 at the end of the clamping block 405 is inserted into the first mounting block 406 at the end of the other clamping block 405. Then, the fixing piece 407 is inserted from the left side of the first mounting block 406 into the interior of the first mounting block 406 and the second mounting block 409. Finally, the second bolt 408 is screwed in, and the second bolt 408 fixes the fixing piece 407 and the second mounting block 409 together to form a stable connection. The operation is convenient and it is easy to install and remove the cutter head 8 and the cutter handle 404, which improves maintenance efficiency and reduces maintenance costs.

[0038] The rotation of the handle 404 causes the blade 9 to vibrate when cleaning the inner wall of the steel pipe. The vibration is transmitted to the handle 404 through the blade head 8. The vibration collidees with the locking block 507, causing the locking block 507 to compress the top crank 2 506. The crank 2 506 drives the slider 504, which in turn compresses the crank 1 502, causing the crank 1 502 to rotate along the limit block 501. The rotation of the crank 2 506 and the crank 1 502 pushes the slider 504 to slide on the outer wall of the slide rod 505 and pulls the spring 503. The spring 503 undergoes elastic deformation, and the contraction of the spring 503 absorbs and buffers the vibration energy, reducing the vibration frequency of the handle 404. This further improves the vibration resistance of the structure, prevents the handle 404 from loosening, wearing, or even being damaged due to long-term vibration, and extends the service life of the equipment.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A scraper for cleaning welding slag from the inner wall of a steel pipe, comprising a fixing frame (1), characterized in that: A base (2) is fixedly connected to the front side of the top wall of the fixed frame (1). A fixed seat (10) is installed in the middle of the top wall of the base (2). A motor (3) is fixedly connected to the front side of the top wall of the base (2). A fixing mechanism (4) is installed at the output end of the motor (3). The fixing mechanism (4) is used to facilitate the installation and disassembly of components. Multiple vibration damping mechanisms (5) are equidistantly installed on the rear side of the outer wall of the fixed seat (10). The vibration damping mechanisms (5) are used to reduce the vibration impact on the structure. The fixing mechanism (4) includes a handle (404), which is fixedly connected to the output end of the motor (3). The handle (404) is rotatably connected to the inner wall of the fixing seat (10). A second fixing block (403) is fixedly connected to the end of the handle (404). A first fixing block (401) is slidably connected to the outer wall of the second fixing block (403). A transmission assembly (402) is installed on the outer walls of the first fixing block (401) and the second fixing block (403).

2. The scraper for cleaning welding slag from the inner wall of a steel pipe according to claim 1, characterized in that: The transmission assembly (402) includes a housing (4022), which is disposed on the right side of the outer wall groove of the first fixing block (401) and the second fixing block (403). The inner wall of the housing (4022) is threaded with a bolt (4023). The left side of the outer wall of the bolt (4023) is rotatably connected with a connecting block (4025). The left side of the outer wall of the housing (4022) is equidistantly rotatably connected with multiple connecting rods (4021). The inner wall of the connecting block (4025) is equidistantly rotatably connected with multiple fixing rods (4024). One end of two fixing rods (4024) is connected to the connecting rod (4021), and the other end of the two fixing rods (4024) is fixedly connected with a clamping block (405).

3. The scraper for cleaning welding slag from the inner wall of a steel pipe according to claim 2, characterized in that: One end of the clamping block (405) is fixedly connected to mounting block one (406), and the other end of the clamping block (405) is fixedly connected to mounting block two (409). The inner walls of mounting block one (406) and mounting block two (409) are slidably connected to fixing plate (407). The inner wall of fixing plate (407) is threadedly connected to bolt two (408). Bolt two (408) is threadedly connected to the inner walls of mounting block one (406) and mounting block two (409).

4. The scraper for cleaning welding slag from the inner wall of a steel pipe according to claim 1, characterized in that: The vibration damping mechanism (5) includes a limiting block (501), which is fixedly connected at equal intervals to the rear side of the outer wall of the fixed base (10). The bottom wall of the limiting block (501) is rotatably connected to multiple cranks (502) at equal intervals. The lower part of the inner wall of the crank (502) is rotatably connected to a slider (504). The inner wall of the slider (504) is slidably connected to a slide rod (505). A spring (503) is installed in the middle of the outer wall of the slide rod (505).

5. The scraper for cleaning welding slag from the inner wall of a steel pipe according to claim 4, characterized in that: A slider (504) is rotatably connected to the lower part of the inner wall of the crank (502). A slide rod (505) is slidably connected to the inner wall of the slider (504). A spring (503) is installed in the middle of the outer wall of the slide rod (505). The two ends of the spring (503) are connected to the slider (504).

6. The scraper for cleaning welding slag from the inner wall of a steel pipe according to claim 5, characterized in that: The bottom of the slider (504) is rotatably connected to a crank two (506), and the lower part of the inner wall of the crank two (506) is rotatably connected to a locking block (507).

7. The scraper for cleaning welding slag from the inner wall of a steel pipe according to claim 1, characterized in that: The end of the fixed block (401) is fixedly connected to a cutting head (8), and multiple blades (9) are fixedly connected at equal intervals on the outer wall of the cutting head (8).

8. The scraper for cleaning welding slag from the inner wall of a steel pipe according to claim 1, characterized in that: A controller (7) is installed on the right side of the outer wall of the fixing frame (1), and a display screen (6) is installed on the top wall of the controller (7).

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