Automatic polishing and rust removing device for building steel pipe

Abstract

The application relates to the technical field of building steel pipe rust removal, and particularly discloses an automatic polishing and rust removing device for building steel pipes, which comprises a bottom box directly placed on the ground and a polishing box arranged on the top of the bottom box, and the polishing box is used for polishing through the steel pipe; the polishing box comprises a front driving box, a front polishing box and a rear polishing box arranged from the front end to the rear end; the front driving box, the front polishing box and the rear polishing box are detachably arranged between the bottom box; a feeding mechanism capable of breaking the dirt on the outer wall of the steel pipe is arranged in the front driving box; a front polishing rotating drum is rotatably arranged in the front polishing box; and a rear polishing rotating drum connected with the front polishing rotating drum is rotatably arranged in the rear polishing box. The automatic polishing and rust removing device for building steel pipes can clean the dirt on the outer side of the steel pipe, guarantees the rust removing effect of the steel pipe, reduces the damage of the equipment, is favorable for maintaining the long-time rust removing use of the steel pipe, can improve the rust removing efficiency, and is convenient for collecting the waste chips and metal chips.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and more particularly to the field of grinding and rust removal technology for building steel pipes, specifically an automatic grinding and rust removal device for building steel pipes. Background Technology

[0002] During the continuous and rapid development of the construction industry, steel pipes, as core components of scaffolding, supporting structures, underground pipe networks, etc., have seen a gradual increase in consumption. Furthermore, with the accelerated implementation of infrastructure projects such as prefabricated buildings, super high-rise buildings, and urban underground integrated pipe corridors, higher requirements are being placed on the surface treatment quality of steel pipes. Surface rust removal is a key process to ensure the durability and safety of the structure.

[0003] For example, the invention with authorization announcement number CN 112658935 B provides a mechanical rust removal machine for steel pipes used in construction, including two mounting rods and two conveying rings. The two conveying rings are located between the left and right ends of the two mounting rods, and are fixedly connected to the two mounting rods. A fixing sleeve is provided between the two mounting rods and is fixedly connected to the two mounting rods. Sliding rods are slidably connected to both the front and rear sides of the fixing sleeve. A sleeve is provided between the left ends of the two sliding rods and is rotatably connected to the two sliding rods. A mounting ring is provided on the left side of the sleeve and is located inside the fixing sleeve. This invention can achieve the effect of peeling off the harder and thicker rust when removing rust from steel pipes, solving the problems of time-consuming and labor-intensive rust removal, low processing efficiency, and difficulty in handling thick rust in the prior art.

[0004] For example, the invention with authorization announcement number CN 113183006 B provides a steel pipe rust removal device for bridge construction, including a rust removal box with supporting legs on the bottom. The box has a steel pipe inlet and outlet on its left and right sides, respectively, with baffle brushes inside both the inlet and outlet. A rust removal assembly is installed inside the box, allowing for rust removal of steel pipes of different shapes. A chip discharge port is located on the side wall of the box, with a chip discharge switch hinged to the top. An electrical box is installed on the outside of the box, with a switch hinged to the outside. A controller is installed inside the electrical box, and a rust removal button is installed on the top of the box. This invention can perform surface rust removal on various types of steel pipes. One end of the steel pipe is inserted into the rust removal box through the inlet for rust removal, and after rust removal, the pipe is pulled out through the outlet at the other end. The rust removal is achieved by removing rust protrusions in the rust removal assembly, while springs prevent the protrusions from damaging the steel pipe surface.

[0005] However, considering the rust removal equipment and methods currently used in construction, there are still some problems with current steel pipe rust removal methods, such as:

[0006] 1. Steel pipes used on the construction site are stacked after entering the site. However, due to the complex environment of the construction site, hard impurities such as concrete and welding slag from other welding operations will appear on the surface of the steel pipes. When removing rust, these impurities will damage the rust removal components, affecting the long-term use of the rust removal equipment, and may also cause accidental damage to the steel pipes.

[0007] 2. Some rust removal operations are still carried out manually. Although some small manual rust removal devices can complete the rust removal operation, the friction is not high, which will affect the rust removal effect. High friction will greatly increase the manual labor required, making it difficult to guarantee the efficiency of rust removal for steel pipes.

[0008] 3. A large amount of waste dust is generated during the grinding and rust removal process of steel pipes. Dust is generated by the rotation and vibration of the grinding elements and the airflow. At present, the rust removal device collects the waste dust through a collection box, but the efficiency is low and it is impossible to collect and reuse the metal scraps, resulting in a waste of resources.

[0009] Therefore, we propose an automatic grinding and rust removal device for building steel pipes to solve the problems mentioned above. Summary of the Invention

[0010] The purpose of this invention is to provide an automatic grinding and rust removal device for building steel pipes, in order to solve the problems mentioned in the background art. Current rust removal devices are prone to damage to components due to hard dirt on the outside of the steel pipe, which affects long-term use or even damages the steel pipe. This is not conducive to improving rust removal efficiency, and the waste chip collection efficiency is low, making it impossible to collect and reuse metal chips, resulting in resource waste.

[0011] To achieve the above objectives, the present invention provides the following technical solution: an automatic grinding and rust removal device for building steel pipes, comprising a base box for direct use on the ground and a grinding box set on top of the base box, wherein the grinding box is used for grinding through the steel pipe;

[0012] The grinding box includes a front drive box, a front grinding box, and a rear grinding box arranged from the front end to the rear end, and the front drive box, the front grinding box, and the rear grinding box are detachably connected to the bottom box.

[0013] The front drive box is equipped with a feeding mechanism that can break up dirt on the outer wall of the steel pipe. The front grinding box is rotatably installed with a front grinding drum. The inner side of the front grinding drum is provided with grinding blocks that can coarsely grind the outer wall of the steel pipe. The rear grinding box is rotatably installed with a rear grinding drum that is connected to the front grinding drum. The inner side of the rear grinding drum is provided with grinding burrs for fine grinding the outer wall of the steel pipe.

[0014] The top of the bottom box is connected to the bottom of the front drive box, the front grinding box and the rear grinding box for receiving waste chips. A magnetic separation mechanism for recycling metal waste chips is provided in the middle of the bottom box.

[0015] Furthermore, the outer end face of the front drive box is fixedly equipped with feed cylinders at equal intervals. The feed cylinders have a conical cylindrical structure that is larger on the outside and smaller on the inside, which is used for the insertion of steel pipes.

[0016] Furthermore: the feeding mechanism includes:

[0017] The first drive roller rotates longitudinally inside the front drive box. The first drive roller is symmetrically arranged about the central axis of the steel pipe. The first clamping wheel is integrally arranged at equal intervals in the middle of the first drive roller. The outer side of the first clamping wheel is uniformly protruding with conical spikes.

[0018] The second drive roller is mounted on a support plate that is fixedly installed longitudinally inside the front drive box. The second drive roller is mounted vertically and rotatably on the inner side of the support plate. The first clamping wheel is also fixedly integrated in the middle of the second drive roller.

[0019] The third drive roller is provided inside both the front drive box and the rear grinding box. There are two sets of the third drive roller inside the front drive box. Each set of the third drive roller has two rollers arranged vertically. The middle of the third drive roller is integrally and equidistantly provided with a second clamping wheel. The outer side of the second clamping wheel is fitted with an anti-slip pad.

[0020] Furthermore: a drive gear is fixedly connected to the end of the third drive roller on the outer side of the rear grinding box; pulleys are provided at the front ends of both the third drive roller and the first drive roller; the front ends of the third drive roller are connected by a first transmission belt; and the third drive roller and the first drive roller are connected by a second transmission belt.

[0021] Furthermore: a first mounting plate is integrally fixed to the inner side of the front drive box; the front end of the front grinding cylinder is rotatably mounted inside the first mounting plate via a bearing; a second mounting plate is fixedly mounted on one side of the interior of the front grinding box; the rear end of the front grinding cylinder is rotatably connected to the interior of the second mounting plate; and the front and rear ends of the rear grinding cylinder are respectively rotatably connected to the inner sides of a third mounting plate fixed on the other side of the front grinding box and the inner sides of a fourth mounting plate fixed inside the rear grinding box.

[0022] Furthermore: a first bevel gear is integrally fixed to the outer rear end of the front grinding drum, a second bevel gear is integrally fixed to the outer front end of the rear grinding drum, a third bevel gear is provided at the top of the interior of the front grinding box, which meshes with both the first and second bevel gears, and the individual third bevel gears are connected by a third transmission belt, and a partition is provided inside the front grinding box to spatially divide the third bevel gears.

[0023] Furthermore: a first fixing plate is provided at equal angles inside the front grinding drum, an adjusting rod is rotatably installed at the top center of the first fixing plate, the adjusting rod is threadedly connected to the front grinding drum, a sliding rod is slidably connected to the top side of the first fixing plate, and a spring connecting the front grinding drum and the first fixing plate is sleeved on the outside of the sliding rod.

[0024] A grinding plate is attached to the inner side of the first fixing plate. A connecting rod is protruding from the side of the grinding plate and is inserted into the first fixing plate. A nut is connected to the top of the connecting rod. A grinding block is provided on the inner side of the grinding plate. The height of the grinding block increases from the front end to the rear end.

[0025] An adjusting wheel is rotatably mounted on the outer center of the front grinding drum. A worm gear is integrally formed on the outer side of the adjusting wheel. A fixing frame is fixed to the outer side of the front grinding drum on the outer side of the adjusting wheel. A worm gear that meshes with the worm gear is rotatably mounted inside the fixing frame. A protruding tooth that meshes with the top of the adjusting rod is provided on the inner side of the adjusting wheel.

[0026] Furthermore, a second fixing plate is provided on the inner side of the rear grinding drum. The installation method between the second fixing plate and the rear grinding drum is the same as the installation method between the first fixing plate and the front grinding drum. Grinding burrs are evenly distributed in a spiral shape inside the second fixing plate.

[0027] Furthermore: the top of the inner side of the base box is provided with a first support plate and a second support plate arranged at an angle, and the first support plate and the second support plate are staggered. A negative pressure fan is fixedly installed at the bottom of the base box.

[0028] Furthermore: the magnetic separation mechanism includes:

[0029] The mounting bracket is fixedly installed in the middle of the inner side of the base box, and a magnetic plate is embedded in the outer side of the mounting bracket, the magnetic plate being located below the end of the second receiving plate;

[0030] The fourth drive roller is rotatably mounted on the lower outer side of the mounting frame, and a magnetic separation belt is driven to be mounted on the outer side of the magnetic plate and the fourth drive roller.

[0031] A base plate is fixedly installed in the middle of the base box to receive metal scrap. A bonding plate is fixedly installed on the inner top of the base plate, and the surface of the bonding plate is provided with a cleaning wipe for cleaning the bottom surface of the magnetic separator belt.

[0032] Compared with the prior art, the present invention has at least the following beneficial effects: the automatic grinding and rust removal device for building steel pipes can clean the dirt and impurities on the outside of the steel pipes, ensure the rust removal effect of the steel pipes, reduce equipment damage, facilitate long-term use of steel pipe rust removal, improve rust removal efficiency, and facilitate the collection of waste and metal fragments.

[0033] 1. This solution includes a first drive roller, a first clamping wheel, and a second drive roller. The first clamping wheel is integrally formed in the middle of both the first drive roller and the second drive roller. The arc-shaped structure of the side wall of the first clamping wheel can clamp the steel pipe. The conical spikes protrude on the outside of the first clamping wheel to facilitate the cleaning of hard impurities on the outside of the steel pipe and reduce the damage of impurities to the grinding elements.

[0034] 2. This solution is equipped with a third drive roller and a second clamping roller. Through the combined arrangement of the second clamping roller and the third drive roller, the steel pipe can be clamped and conveyed by the anti-slip pad of the second clamping roller. In addition, two sets of third drive rollers are set at the front end of the rust removal device to ensure that the steel pipe enters horizontally, ensures stable rust removal and avoids bending of the steel pipe.

[0035] 3. This solution includes a front grinding drum, an adjusting wheel, a first fixed plate, and a grinding plate. The meshing between the worm and the worm wheel facilitates the rotation of the adjusting wheel, and the meshing between the convex teeth and the adjusting rod adjusts the height of the first fixed plate, thereby facilitating the adjustment of the position of the grinding plate and the grinding block for easy grinding.

[0036] Furthermore, the grinding blocks are arranged in a stepped manner on the inner side wall of the grinding plate, which can ensure that the grinding blocks can effectively clean thick rust and impurities;

[0037] 4. This solution includes a post-grinding drum, a second fixed plate, and grinding burrs. The grinding burrs are evenly distributed in a spiral shape on the inner side of the second fixed plate. Fine grinding is performed by the grinding burrs contacting the steel pipe, which can ensure the rust removal quality of the steel pipe surface.

[0038] 5. This solution includes a third bevel gear and a third transmission belt. The two sides of the third bevel gear mesh with the first bevel gear and the second bevel gear respectively, which can stably drive the front grinding drum and the rear grinding drum to rotate inside the front grinding box and the rear grinding box.

[0039] 6. This solution includes a front drive box, a front grinding box, and a rear grinding box. The feeding mechanism, the front grinding mechanism, and the rear grinding mechanism are respectively located inside the front drive box, the front grinding box, and the rear grinding box, and can be disassembled and assembled, which facilitates modular assembly and convenient maintenance.

[0040] 7. This solution includes a first receiving plate, a second receiving plate, and a negative pressure fan. The staggered arrangement of the first and second receiving plates helps to reduce the impact of falling waste and the resulting dust. The negative pressure fan creates negative pressure at the bottom of the box, facilitating the downward flow of dust and reducing dust generation.

[0041] 8. This solution includes an installation frame, a magnetic plate, a fourth drive roller, and a magnetic separator belt. The magnetic plate's magnetic properties facilitate the adsorption of metal debris from the waste that slides down the second receiving plate. The fourth drive roller's transmission of the magnetic separator belt facilitates the transport of the metal waste to the bottom plate for recycling. Attached Figure Description

[0042] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0043] Figure 1 This is a schematic diagram of the overall right-side view of the present invention;

[0044] Figure 2 This is a schematic diagram of the overall left-side view of the present invention;

[0045] Figure 3 This is a schematic diagram of the overall frontal cross-section of the present invention;

[0046] Figure 4 This is a schematic diagram of the arrangement structure of the grinding mechanism of the present invention;

[0047] Figure 5 This is a schematic diagram of the overall exploded structure of the present invention;

[0048] Figure 6 This is an exploded bottom view of the front drive box, front grinding box, and rear grinding box of the present invention.

[0049] Figure 7 This is a schematic diagram of the disassembled structure of the first drive roller and the second drive roller of the present invention;

[0050] Figure 8 This is a schematic diagram of the side cross-sectional structure of the third drive roller of the present invention;

[0051] Figure 9 This is a schematic diagram of the overall exploded structure of the pre-grinding drum of the present invention;

[0052] Figure 10 This is a schematic diagram of the side cross-sectional structure of the front grinding cylinder of the present invention;

[0053] Figure 11 This is a schematic diagram of the overall exploded structure of the post-grinding drum of the present invention;

[0054] Figure 12 This is a schematic diagram of the side cross-sectional structure of the front grinding box of the present invention;

[0055] Figure 13 This is an exploded structural diagram of the mounting frame and the fourth drive roller of the present invention.

[0056] In the diagram: 1. Base box; 101. Steel pipe; 2. Front drive box; 201. Feed cylinder; 202. Support plate; 203. First mounting plate; 3. Front grinding box; 301. Second mounting plate; 302. Third mounting plate; 303. Partition plate; 4. Rear grinding box; 401. Fourth mounting plate; 402. Discharge cylinder; 5. First drive roller; 6. First clamping wheel; 601. Conical spike; 7. Second drive roller; 8. Third drive roller; 9. Second clamping wheel; 901. Anti-slip pad; 10. Drive gear; 11. First transmission belt; 12. Second transmission belt; 13. Front grinding drum; 131. First bevel gear; 132. Adjusting wheel; 1321. Worm gear; 13 22. Convex tooth; 133. Fixing frame; 1331. Worm gear; 134. First fixing plate; 1341. Adjusting rod; 1342. Sliding rod; 1343. Spring; 135. Grinding plate; 1351. Connecting rod; 136. Grinding block; 14. Rear grinding drum; 141. Second bevel gear; 142. Second fixing plate; 1421. Deburring; 15. Third bevel gear; 16. Third transmission belt; 17. Stop bar; 18. Side plate; 19. First receiving plate; 20. Second receiving plate; 21. Mounting frame; 22. Magnetic plate; 23. Fourth drive roller; 24. Magnetic separator belt; 25. Base plate; 26. Adhesive plate; 27. Cleaning wiper; 28. Negative pressure fan. Detailed Implementation

[0057] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0058] Please see Figures 1-13 The present invention provides the following technical solution:

[0059] An automatic grinding and rust removal device for building steel pipes includes: a base box 1, a steel pipe 101, a front drive box 2, a feed cylinder 201, a support plate 202, a first mounting plate 203, a front grinding box 3, a second mounting plate 301, a third mounting plate 302, a partition plate 303, a rear grinding box 4, a fourth mounting plate 401, a discharge cylinder 402, a first drive roller 5, a first clamping wheel 6, a conical spike 601, a second drive roller 7, a third drive roller 8, a second clamping wheel 9, an anti-slip pad 901, a drive gear 10, a first transmission belt 11, a second transmission belt 12, a front grinding drum 13, a first bevel gear 131, and an adjusting wheel 132. Worm gear 1321, convex tooth 1322, fixed frame 133, worm 1331, first fixed plate 134, adjusting rod 1341, sliding rod 1342, spring 1343, grinding plate 135, connecting rod 1351, grinding block 136, rear grinding drum 14, second bevel gear 141, second fixed plate 142, burr removal tool 1421, third bevel gear 15, third transmission belt 16, stop bar 17, side plate 18, first receiving plate 19, second receiving plate 20, mounting frame 21, magnetic plate 22, fourth drive roller 23, magnetic separator belt 24, base plate 25, bonding plate 26, cleaning wiper 27, and negative pressure fan 28;

[0060] Among them: such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 In this design, the base box 1 is placed directly on the ground for use. A grinding box is installed on the top of the base box 1, through which a steel pipe 101 passes for grinding. The grinding box includes a front drive box 2, a front grinding box 3, and a rear grinding box 4 arranged from front to rear. The front drive box 2, the front grinding box 3, and the rear grinding box 4 are detachably connected to the base box 1. A feed cylinder 201 is fixedly installed at equal intervals on the outer end face of the front drive box 2. The feed cylinder 201 has a conical cylindrical structure that is larger on the outside and smaller on the inside for the steel pipe 101 to pass through. A discharge cylinder 402 is fixedly installed at equal intervals on the outer end face of the rear grinding box 4. The interior of the front drive box 2 is equipped with... The feeding mechanism is capable of crushing the dirt on the outer wall of the steel pipe 101. The front grinding box 3 is rotatably installed with a front grinding drum 13. The inner side of the front grinding drum 13 is provided with grinding blocks 136 that can coarsely grind the outer wall of the steel pipe 101. The rear grinding box 4 is rotatably installed with a rear grinding drum 14 that is connected to the front grinding drum 13. The inner side of the rear grinding drum 14 is provided with grinding burrs 1421 for fine grinding the outer wall of the steel pipe 101. The top of the bottom box 1 is connected to the bottom of the front drive box 2, the front grinding box 3 and the rear grinding box 4 for receiving waste chips. The middle of the bottom box 1 is provided with a magnetic separation mechanism for recycling metal waste chips.

[0061] In specific application scenarios, the base box 1 is placed on the construction site for use. The steel pipe 101 enters the interior of the front drive box 2 through the flared feed cylinder 201. The steel pipe 101 inside the front drive box 2 is clamped by the feeding mechanism and conveyed into the rust removal device. The rotation of the front grinding cylinder 13 and the rear grinding cylinder 14, which are rotatably installed inside the front grinding box 3 and the rear grinding box 4, uses the grinding blocks 136 and the deburring 1421 to perform coarse grinding and fine grinding on the steel pipe 101, respectively. The ground steel pipe 101 passes through the discharge cylinder 402 fixed on the outside of the rear grinding box 4 to complete the grinding and rust removal operation. At the same time, the bottom of the front drive box 2, the front grinding box 3 and the rear grinding box 4 are connected to the top of the base box 1. The waste chips during the grinding process will automatically fall into the interior of the base box 1. Meanwhile, the interior of the base box 1 is equipped with a magnetic separation mechanism, which can adsorb and collect the metal fragments in the waste chips for recycling.

[0062] The above technical solution enables rapid and stable grinding and rust removal of steel pipe 101. Through coarse and fine grinding processes, the rust removal quality is guaranteed, and waste chips can be collected quickly and recycled.

[0063] Among them: such as Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8 The feeding mechanism includes a first drive roller 5, a second drive roller 7, and a third drive roller 8. The first drive roller 5 rotates longitudinally inside the front drive box 2. The first drive roller 5 is symmetrically arranged about the central axis of the steel pipe 101. The first clamping wheel 6 is integrally and uniformly arranged in the middle of the first drive roller 5. The outer surface of the first clamping wheel 6 is uniformly protruding with conical spikes 601. A support plate 202 is longitudinally fixedly installed inside the front drive box 2. The second drive roller 7 is vertically and rotatably installed on the inner side of the support plate 202. The first clamping wheel 6 is also integrally fixed in the middle of the second drive roller 7. The third drive roller 8 is located between the front drive box 2 and the rear drive box 2. The grinding box 4 is equipped with the following: two sets of third drive rollers 8 are set inside the front drive box 2, and two third drive rollers 8 are set in each set. The middle of the third drive roller 8 is equidistantly and integrally set with second clamping wheels 9. The outer side of the second clamping wheels 9 is fitted with anti-slip pads 901. The outer side of the rear grinding box 4 is equipped with drive gears 10 that are fixedly connected to the end of the third drive roller 8. The front ends of the third drive roller 8 and the first drive roller 5 are both equipped with pulleys. The front ends of the third drive roller 8 are connected by a first transmission belt 11, and the third drive roller 8 and the first drive roller 5 are connected by a second transmission belt 12.

[0064] In a specific application scenario, after the steel pipe 101 enters the front drive box 2, its end first enters between the upper and lower first drive rollers 5. The steel pipe 101 is accommodated by the first clamping wheels 6, which are equally spaced and compositely arranged in the middle of the first drive rollers 5. The steel pipe 101 is continuously pushed into the space between the second drive rollers 7, and then into the space between the upper and lower symmetrically arranged third drive rollers 8. The steel pipe 101 is clamped by the second clamping wheel 9, which is integrated in the middle of the third drive roller 8, using anti-slip pads 901. Two sets of third drive rollers 8 are installed inside the front drive box 2 to ensure the horizontal stability of the steel pipe 101 when it enters the front grinding box 3 and the rear grinding box 4 for grinding and rust removal. One set of third drive rollers 8 is installed inside the rear grinding box 4 to continuously convey the steel pipe outward after grinding. Furthermore, the top of the third drive rollers 8 inside the rear grinding box 4 is equipped with meshing drive gears 10, which can be driven by a motor to rotate the third drive rollers 8. The first drive roller 8 is driven by a pulley at its top and a first drive belt 11 for transmission between individual third drive rollers 8 and first drive roller 5, and by a second drive belt 12 for transmission between the third drive roller 8 and first drive roller 5. This allows the first drive roller 5 and third drive roller 8 to rotate synchronously. The outer side of the first clamping wheel 6 is evenly provided with conical spikes 601. During the transmission of steel pipe 101, the first clamping wheel 6 and conical spikes 601 fixed inside the first drive roller 5 and second drive roller 7 remove dirt from the outer wall of steel pipe 101, thereby reducing the damage caused by hard impurities on the outer wall of steel pipe 101 entering the grinding element and ensuring the long-term use of the rust removal equipment. The outer side of the front drive box 2, front grinding box 3 and rear grinding box 4 are equipped with side plates 18 that can protect the outer drive gear 10, first drive belt 11 and second drive belt 12, which helps to increase equipment protection and reduce the occurrence of safety accidents.

[0065] The above technical solution facilitates the clamping and conveying of steel pipe 101. While conveying, it can clean hard impurities on the outer wall of steel pipe 101, reduce damage to grinding elements, and extend the service life of rust removal equipment.

[0066] Among them: such as Figure 3 , Figure 5 , Figure 6 and Figure 12In the front grinding box 2, a first mounting plate 203 is integrally fixed to the inner side. The front end of the front grinding drum 13 is rotatably mounted inside the first mounting plate 203 via a bearing. A second mounting plate 301 is fixedly mounted on one side of the front grinding box 3. The rear end of the front grinding drum 13 is rotatably connected to the inside of the second mounting plate 301. The front and rear ends of the rear grinding drum 14 are respectively rotatably connected to the inner sides of the third mounting plate 302 fixed on the other side of the front grinding box 3 and the inner sides of the fourth mounting plate 401 fixed inside the rear grinding box 4. A first bevel gear 131 is integrally fixed to the outer side of the rear end of the front grinding drum 13. A second bevel gear 141 is integrally fixed to the outer side of the front end of the rear grinding drum 14. A third bevel gear 15 is provided at the top of the front grinding box 3, which meshes with both the first bevel gear 131 and the second bevel gear 141. The individual third bevel gears 15 are connected to each other via a third transmission belt 16. A partition 303 is provided inside the front grinding box 3 to spatially divide the third bevel gears 15.

[0067] In a specific application scenario, the third bevel gear 15 is rotatably installed in the space separated by the partition plate 303 on the top of the front grinding box 3. The front grinding drum 13 is rotatably installed between the first mounting plate 203 and the second mounting plate 301. The rear grinding drum 14 is rotatably installed between the third mounting plate 302 and the fourth mounting plate 401. After assembly, the third bevel gear 15 meshes with the first bevel gear 131 on the outside of the front grinding drum 13 and the second bevel gear 141 on the outside of the rear grinding drum 14 to ensure that the front grinding drum 13 and the rear grinding drum 14 are driven to rotate by the third bevel gear 15 for grinding. The top of the third bevel gear 15 is driven by the pulley via the third transmission belt 16 to facilitate synchronous driving. The front grinding drum 13 and the rear grinding drum 14 are driven to rotate in opposite directions to avoid the steel pipe 101 from twisting during grinding and rust removal.

[0068] The above technical solution can automatically drive the front grinding drum 13 and the rear grinding drum 14 to rotate and grind, which can ensure the rust removal effect. At the same time, the reverse drive can prevent the steel pipe 101 from twisting.

[0069] Among them: such as Figure 3 , Figure 4 , Figure 9 and Figure 10In the process, a first fixing plate 134 is equidistantly arranged inside the front grinding drum 13. An adjusting rod 1341 is rotatably mounted on the top center of the first fixing plate 134. The adjusting rod 1341 is threadedly connected to the front grinding drum 13. A sliding rod 1342 is slidably connected inside the front grinding drum 13 and protrudes from the top side of the first fixing plate 134. A spring 1343 is sleeved on the outside of the sliding rod 1342 and connects the front grinding drum 13 and the first fixing plate 134. A grinding plate 135 is fitted against the inner side of the first fixing plate 134. A corresponding insertion joint is provided on the side of the grinding plate 135 and corresponds to the first fixing plate 134. The connecting rod 1351 has a nut connected to its top end. The grinding plate 135 has a grinding block 136 on its inner side. The height of the grinding block 136 increases from the front end to the rear end. An adjusting wheel 132 is rotatably mounted on the outer middle of the front grinding drum 13. A worm gear 1321 is integrally mounted on the outer side of the adjusting wheel 132. A fixing frame 133 is fixed on the outer side of the adjusting wheel 132 and fixed to the outer side of the front grinding drum 13. A worm 1331 that meshes with the worm gear 1321 is rotatably mounted inside the fixing frame 133. A protruding tooth 1322 that meshes with the top end of the adjusting rod 1341 is provided on the inner side of the adjusting wheel 132.

[0070] In specific application scenarios, the worm gear 1331, which is rotatably mounted inside the fixed frame 133, rotates on the outside of the front grinding drum 13. When the worm gear 1331 rotates, the meshing between the worm gear 1331 and the worm wheel 1321 causes the adjusting wheel 132 to rotate on the outside of the front grinding drum 13. The meshing between the protruding teeth 1322 on the inner side of the adjusting wheel 132 and the top of the adjusting rod 1341 causes the adjusting rod 1341 to rotate. Through the threaded transmission between the adjusting rod 1341 and the front grinding drum 13, and the rotatable connection between the adjusting rod 1341 and the first fixed plate 134, the rotation of the adjusting rod 1341 simultaneously adjusts the position and height of the first fixed plate 134 inside the front grinding drum 13, thereby adapting to different grinding distances and adjusting the grinding force to ensure the grinding effect. The front grinding box 3 and the rear grinding box 3... A stop bar 17 is installed in the upper compartment of the grinding box 4. By opening the stop bar 17, the worm gear 1331 can be rotated using a tool, or a drive motor can be directly installed on the top of the worm gear 1331. At the same time, the side of the first fixed plate 134 is slidably connected to the inner side of the front grinding drum 13 via a fixed slide rod 1342. The stability of the first fixed plate 134 is ensured by a spring 1343 sleeved on the outer side of the slide rod 1342. The outer side of the grinding plate 135 is inserted into the inner side of the first fixed plate 134 via a connecting rod 1351 and fixed with a nut, so as to facilitate the installation of the grinding block 136 through the grinding plate 135. The grinding block 136 is set in a stepped manner on the inner side of the grinding plate 135. Its height and width dimensions become closer to the steel pipe 101 as it is set inward, so as to further clean the impurities on the outer side of the steel pipe 101 through the grinding block 136.

[0071] The above technical solution facilitates the adjustment of the height of the first fixed plate 134 and the grinding plate 135 inside the front grinding drum 13, so as to facilitate the rough grinding of the steel pipe 101 by the grinding block 136.

[0072] Among them: such as Figure 3 and Figure 11 In the middle, a second fixing plate 142 is provided on the inner side of the rear grinding drum 14. The installation method between the second fixing plate 142 and the rear grinding drum 14 is the same as the installation method between the first fixing plate 134 and the front grinding drum 13. The interior of the second fixing plate 142 is evenly distributed with grinding burrs 1421 in a spiral shape.

[0073] In specific application scenarios, the adjustment method of the second fixed plate 142 inside the rear grinding drum 14 is the same as the adjustment method of the first fixed plate 134 inside the front grinding drum 13. The distance between the grinding burr 1421 and the steel pipe 101 can be adjusted by adjusting the position of the second fixed plate 142, so that the grinding burr 1421 can be adjusted after long-term grinding use to ensure fine grinding.

[0074] The above technical solution facilitates the adjustment and use of the burr removal tool 1421 to ensure fine grinding quality and rust removal effect.

[0075] Among them: such as Figure 2 and Figure 3 In the bottom box 1, the top of the interior is provided with a first support plate 19 and a second support plate 20 arranged at an angle. The first support plate 19 and the second support plate 20 are staggered. A negative pressure fan 28 is fixedly installed at the bottom of the bottom box 1.

[0076] In specific application scenarios, during rust removal and grinding, the waste chips from grinding by the first clamping wheel 6, grinding block 136, and burr removal 1421 will fall directly through the connection between the front drive box 2, the front grinding box 3, the rear grinding box 4, and the bottom box 1, allowing the waste chips to enter the interior of the bottom box 1. The waste chips are received by the first receiving plate 19 and the second receiving plate 20, which are inclined on the inner side of the top of the bottom box 1, thus buffering the waste chips. The waste chips are also concentrated and discharged through the second receiving plate 20. At the same time, when the negative pressure fan 28 is started at the bottom of the bottom box 1, a negative pressure is formed inside the bottom box 1 to ensure that fine chips and dust enter the bottom of the bottom box 1 and reduce dust.

[0077] The above technical solution can collect waste, improve waste collection efficiency, and reduce dust.

[0078] Among them: such as Figure 3 and Figure 13In the magnetic separation mechanism, there are: a mounting frame 21, a fourth drive roller 23 and a base plate 25. The mounting frame 21 is fixedly installed in the middle of the inner side of the base box 1. A magnetic plate 22 is embedded in the outer side of the mounting frame 21. The magnetic plate 22 is located below the end of the second receiving plate 20. The fourth drive roller 23 is rotatably installed on the lower outer side of the mounting frame 21. A magnetic separation belt 24 is driven and installed on the outer side of the magnetic plate 22 and the fourth drive roller 23. The base plate 25 is fixedly installed in the middle of the base box 1 to receive metal waste. A bonding plate 26 is fixedly installed on the inner side of the top of the base plate 25. The surface of the bonding plate 26 is provided with a cleaning wipe 27 for cleaning the bottom surface of the magnetic separation belt 24.

[0079] In specific application scenarios, the waste debris sliding off the second receiving plate 20 will fall onto the outside of the magnetic separator belt 24. The magnetic separator belt 24 is driven by the fourth drive roller 23 and the mounting frame 21. The mounting frame 21 has a magnetic plate 22 embedded inside. The magnetic plate 22 adsorbs the metal fragments in the waste debris. Through the conveying of the magnetic separator belt 24, the metal fragments fall into the interior of the bottom plate 25. When the magnetic separator belt 24 is conveyed, the top of the bottom plate 25 is fixed with an adhesive plate 26. The cleaning wipe 27 attached to the top surface of the adhesive plate 26 contacts the magnetic separator belt 24 to clean the magnetic separator belt 24, which facilitates the recycling of metal fragments.

[0080] The above technical solution facilitates the recycling of metal fragments from waste materials, thereby improving resource utilization.

[0081] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention; the contents not described in detail in this specification belong to the prior art known to those skilled in the art; in addition, the directional terms such as up, down, left, right, front, and back in the text only represent their relative positions and not absolute positions.

[0082] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0083] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An automatic grinding and rust removal device for building steel pipes, comprising a base box (1) for direct placement on the ground and a grinding box disposed on top of the base box (1), wherein the grinding box is used for grinding through a steel pipe (101); characterized in that: The grinding box includes a front drive box (2), a front grinding box (3) and a rear grinding box (4) arranged from the front end to the rear end. The front drive box (2), the front grinding box (3) and the rear grinding box (4) are detachably mounted to the bottom box (1). The front drive box (2) is equipped with a feeding mechanism that can break up dirt on the outer wall of the steel pipe (101). The front grinding box (3) is rotatably installed inside. The inner side of the front grinding box (13) is provided with a grinding block (136) that can coarsely grind the outer wall of the steel pipe (101). The rear grinding box (4) is rotatably installed inside, which is connected to the front grinding box (13). The inner side of the rear grinding box (14) is provided with a grinding burr (1421) that can finely grind the outer wall of the steel pipe (101). The front grinding drum (13) is provided with a first fixing plate (134) at equal angles inside. An adjusting rod (1341) is rotatably installed at the top center of the first fixing plate (134). The adjusting rod (1341) is threadedly connected to the front grinding drum (13). A sliding rod (1342) is slidably connected inside the front grinding drum (13) and protrudes from the top side of the first fixing plate (134). A spring (1343) is sleeved on the outside of the sliding rod (1342) and connected between the front grinding drum (13) and the first fixing plate (134). A grinding plate (135) is attached to the inner side of the first fixing plate (134). A connecting rod (1351) is protruding from the side of the grinding plate (135) and is inserted into the first fixing plate (134). A nut is connected to the top of the connecting rod (1351). A grinding block (136) is provided on the inner side of the grinding plate (135). The height of the grinding block (136) increases from the front end to the rear end. An adjusting wheel (132) is rotatably mounted on the outer middle of the front grinding drum (13). A worm gear (1321) is integrally provided on the outer side of the adjusting wheel (132). A fixing frame (133) is fixed on the outer side of the front grinding drum (13) and a worm (1331) meshing with the worm gear (1321) is rotatably mounted inside the fixing frame (133). A protruding tooth (1322) is provided on the inner side of the adjusting wheel (132) to mesh with the top of the adjusting rod (1341). The inner side of the rear grinding drum (14) is provided with a second fixing plate (142). The installation method between the second fixing plate (142) and the rear grinding drum (14) is the same as the installation method between the first fixing plate (134) and the front grinding drum (13). The interior of the second fixing plate (142) is evenly distributed with grinding burrs (1421) in a spiral shape. The top of the bottom box (1) is connected to the bottom of the front drive box (2), the front grinding box (3) and the rear grinding box (4) for receiving waste chips. A magnetic separation mechanism for recycling metal waste chips is provided in the middle of the bottom box (1).

2. The automatic grinding and rust removal device for building steel pipes according to claim 1, characterized in that: The front drive box (2) is fixedly installed with feed cylinders (201) at equal intervals on its outer end face. The feed cylinders (201) have a conical cylindrical structure with a larger outer diameter and a smaller inner diameter for the insertion of steel pipes (101).

3. The automatic grinding and rust removal device for building steel pipes according to claim 1, characterized in that: The feeding mechanism includes: The first drive roller (5) rotates longitudinally on the inner side of the front drive box (2). The first drive roller (5) is symmetrically arranged about the central axis of the steel pipe (101). The first clamping wheel (6) is integrally arranged at equal intervals in the middle of the first drive roller (5). The outer side of the first clamping wheel (6) is uniformly protruding with conical spikes (601). The second drive roller (7) is longitudinally fixed inside the front drive box (2), and the second drive roller (7) is vertically rotatably mounted on the inner side of the support plate (202). The first clamping wheel (6) is also integrally fixed in the middle of the second drive roller (7). The third drive roller (8) is provided inside both the front drive box (2) and the rear grinding box (4). There are two sets of the third drive roller (8) inside the front drive box (2). Each set of the third drive roller (8) has two rollers arranged vertically. The middle part of the third drive roller (8) is provided with a second clamping wheel (9) at equal intervals. The outer side of the second clamping wheel (9) is fitted with an anti-slip pad (901).

4. The automatic grinding and rust removal device for building steel pipes according to claim 3, characterized in that: The outer side of the rear grinding box (4) is provided with a drive gear (10) that is fixedly connected to the end of the third drive roller (8). The front ends of the third drive roller (8) and the first drive roller (5) are both provided with pulleys. The front ends of the third drive roller (8) are connected by a first transmission belt (11), and the third drive roller (8) and the first drive roller (5) are connected by a second transmission belt (12).

5. The automatic grinding and rust removal device for building steel pipes according to claim 1, characterized in that: The front drive box (2) is integrally fixed with a first mounting plate (203). The front end of the front grinding cylinder (13) is rotatably mounted inside the first mounting plate (203) via a bearing. The front grinding box (3) is fixedly mounted with a second mounting plate (301) on one side inside. The rear end of the front grinding cylinder (13) is rotatably connected to the inside of the second mounting plate (301). The front and rear ends of the rear grinding cylinder (14) are respectively rotatably connected to the inside of the third mounting plate (302) fixed on the other side of the front grinding box (3) and the inside of the fourth mounting plate (401) fixed inside the rear grinding box (4).

6. The automatic grinding and rust removal device for building steel pipes according to claim 1, characterized in that: The rear outer side of the front grinding drum (13) is integrally fixed with a first bevel gear (131), and the front outer side of the rear grinding drum (14) is integrally fixed with a second bevel gear (141). The top of the interior of the front grinding box (3) is provided with a third bevel gear (15) that meshes with the first bevel gear (131) and the second bevel gear (141) at the same time. The individual third bevel gears (15) are connected by a third transmission belt (16). The interior of the front grinding box (3) is provided with a partition (303) that divides the third bevel gears (15) into spaces.

7. The automatic grinding and rust removal device for building steel pipes according to claim 1, characterized in that: The top of the bottom box (1) is arranged at an angle with a first support plate (19) and a second support plate (20), and the first support plate (19) and the second support plate (20) are staggered. A negative pressure fan (28) is fixedly installed at the bottom of the bottom box (1).

8. The automatic grinding and rust removal device for building steel pipes according to claim 1, characterized in that: The magnetic separation mechanism includes: Mounting bracket (21), which is fixedly installed in the middle of the inner side of the base box (1), and a magnetic plate (22) is embedded in the outer side of the mounting bracket (21). The fourth drive roller (23) is rotatably mounted on the lower outer side of the mounting frame (21), and the magnetic plate (22) and the outer side of the fourth drive roller (23) are driven by a magnetic separation belt (24). The base plate (25) is fixedly installed in the middle of the bottom box (1) to receive metal scrap. A bonding plate (26) is fixedly installed on the inner side of the top of the base plate (25). A cleaning wipe (27) for cleaning the bottom surface of the magnetic separation belt (24) is provided on the surface of the bonding plate (26).

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