Valve steel cutting grinding wheel

Abstract

The application discloses a valve steel cutting grinding wheel, which comprises a grinding wheel body, the grinding wheel body comprises a center wheel shaft, a fitting ring, an outer cover ring and a grinding wheel disc, the fitting ring is integrally formed on the outer wall of the center wheel shaft, an inner recessed groove is formed on the inner wall of the fitting ring, a sliding protrusion is slidably arranged in the inner recessed groove, a plug-in rod is welded on the outer wall of the sliding protrusion, a plug-in hole is formed on one side of the outer wall of the outer cover ring, a storage groove is formed between the plug-in hole and the inner recessed groove, a grain discharging strip is arranged on one side of the inner part of the storage groove, a sealing gasket is attached to one end of the inner part of the grain discharging strip, the plug-in rod is inserted into the inner part of the sealing gasket, and grain discharging soft pads are attached to the outer walls of the two sides of the grain discharging strip. The storage groove can block the cutting particles of the grinding wheel, the sliding protrusion is arranged in the inner recessed groove of the fitting ring, the sealing gasket on the grain discharging strip can be inserted into the outer part of the plug-in rod, the sliding protrusion is driven to move around by the grain discharging strip, and the cutting particles stored in the storage groove are discharged.

Description

Technical Field

[0001] This invention relates to the field of grinding wheel technology, and specifically to a valve steel cutting grinding wheel. Background Technology

[0002] Valve is an important component of an engine. Its function is to input air into the engine and expel exhaust gases after combustion. Structurally, valves are divided into intake valves and exhaust valves. Valve materials are made of steel. Grinding wheels, also known as bonded abrasives, are bonded abrasives with a certain strength. They rotate at high speed and can perform rough grinding, semi-fine grinding, and fine grinding, as well as grooving and cutting, on the outer and inner circles, planes, and various profiles of valve steel. High-speed rotating grinding wheels are used to cut steel.

[0003] For example, a precision casting special cutting abrasive wheel with announcement number CN213258990U includes a grinding wheel body and a diamond cutting disc. The grinding wheel body is provided with a first reinforcing plate on both the left and right sides, and a second reinforcing plate is provided on the outer side of the first reinforcing plate. The first reinforcing plate is provided with a groove 1 evenly along the circumferential direction, and the grinding wheel body is provided with a groove 2 at the position corresponding to the groove 1 of the first reinforcing plate.

[0004] During operation, valve steel cutting abrasive wheels experience varying degrees of abrasive wear due to contact with the steel. These abrasive particles can fly off and injure the operator, and their residue can also remain around the wheel, affecting cutting accuracy. Furthermore, the high cutting speed of the abrasive wheel necessitates improved tightness between the wheel disc and the central shaft. Therefore, there is an urgent need to design a valve steel cutting abrasive wheel to address these issues. Summary of the Invention

[0005] The purpose of this invention is to provide a valve steel cutting grinding wheel to overcome the above-mentioned shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A valve steel cutting grinding wheel includes a grinding wheel body, which comprises a central wheel shaft, a fitting ring, an outer cover ring, and a grinding wheel disc. The fitting ring is integrally formed on the outer wall of the central wheel shaft. An inner groove is formed on the inner wall of the fitting ring, and a sliding protrusion is slidably engaged inside the inner groove. An insertion rod is welded to the outer wall of the sliding protrusion. An insertion port is formed on one side of the outer wall of the outer cover ring. An accumulation groove is formed between the insertion port and the inner groove. A discharge strip is provided on one side of the accumulation groove. A sealing gasket is adhered to one end of the discharge strip, and the insertion rod is inserted into the inside of the sealing gasket. Discharge pads are adhered to both outer walls of the discharge strip.

[0008] The grinding wheel has an inner cylinder fixedly installed on both sides. A strong spring is fixedly sleeved on the outside of the inner cylinder, and an outer cylinder is fixedly installed on one end of the strong spring. Storage slots are opened on both sides of the outer wall of the outer cylinder, and an elastic element is movably connected to the inner wall of the storage slot through a torsion spring.

[0009] Preferably, the outer cover ring is welded to the outer wall of the fitting ring, and an adhesive is bonded to the outer wall of the outer cover ring.

[0010] Preferably, the outer cylinder is fitted over the outer cylinder, and the inner casing ring has several through holes.

[0011] Preferably, the inner sides of the outer cover ring are provided with movable grooves, the through hole and the interior of the movable groove are connected, and several mounting plugs are threaded into the inner side of the outer cover ring near the through hole.

[0012] Preferably, outer baffles are fixedly installed on both outer walls of the grinding wheel, and the grinding wheel is fixedly sleeved on the outside of the outer cover ring by a bonding agent. The grinding wheel includes a reinforcing rib, a boron carbide layer and an aluminum oxide layer.

[0013] Preferably, the outer wall of the reinforcing rib is fixedly installed in the middle of the inside of the grinding wheel, and a steel bar is welded on the outer wall of the reinforcing rib, and a plurality of grooves are formed on the outer wall of the steel bar.

[0014] Preferably, a resin diamond layer is disposed on the inner wall of the alumina layer, and a corundum layer is fixedly installed on the inner wall of the resin diamond layer.

[0015] Preferably, a silicon carbide layer is bonded to the inner wall of the corundum layer, and the boron carbide layer is integrally formed on the inner wall of the silicon carbide layer.

[0016] Preferably, the boron carbide layer has a plurality of protrusions integrally formed inside, and the protrusions are engaged with the inner wall of the lower groove.

[0017] Preferably, a plurality of steel sheets are integrally formed on the outer wall of the outer baffle, and the steel sheets are arranged in a ring array on the outside of the outer baffle, and one end of the elastic member is engaged inside the movable groove.

[0018] In the above technical solution, the present invention provides a valve steel cutting abrasive wheel. Through a set discharge strip and sliding protrusion, a groove is formed to hold the abrasive wheel cutting particles. The sliding protrusion is installed in the recessed groove of the fitting ring. The sealing gasket on the discharge strip can be inserted outside the insertion rod. As the discharge strip pushes the sliding protrusion to rotate, the abrasive wheel cutting particles accumulated in the groove are discharged. Through a set elastic element and bonding agent, after the abrasive wheel is installed outside the outer cover ring, the outer cylinder is pushed by a strong spring, causing the elastic element to be pushed into the outer cover ring and locked inside the outer cover ring. The outer cover ring and the grinding wheel are closely fitted together, and the bonding agent strengthens the tightness between the outer cover ring and the grinding wheel to prevent them from separating. Through the setting of the grinding wheel and the reinforcing bar, the protrusions of the boron carbide layer are inserted into the reinforcing bar, so that the boron carbide layer and the reinforcing bar are stably connected. The high hardness of the boron carbide layer can also reduce the damage of the grinding wheel. The silicon carbide layer, corundum layer and resin diamond layer provide high hardness, wear resistance and corrosion resistance respectively. At the same time, the alumina layer is heat resistant and fire resistant, and can be treated to resist high temperature when the grinding wheel is rubbing. The outer baffle on the grinding wheel also prevents the grinding wheel from splashing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of a valve steel cutting grinding wheel according to the present invention.

[0021] Figure 2 This is a cross-sectional schematic diagram of an embodiment of a valve steel cutting grinding wheel according to the present invention.

[0022] Figure 3 This is a schematic diagram of the fitting ring and outer cover ring structure provided in an embodiment of a valve steel cutting grinding wheel of the present invention.

[0023] Figure 4 This is a schematic diagram of the internal cross-section of the outer ring provided in an embodiment of a valve steel cutting grinding wheel of the present invention.

[0024] Figure 5 This is a partial cross-sectional schematic diagram (A) provided for an embodiment of a valve steel cutting grinding wheel according to the present invention.

[0025] Figure 6 This is a schematic cross-sectional view of the outer cover ring and the grinding wheel disc provided in an embodiment of the valve steel cutting grinding wheel of the present invention.

[0026] Figure 7 This is a partial cross-sectional view (B) of an embodiment of a valve steel cutting grinding wheel according to the present invention.

[0027] Figure 8 This is a schematic diagram of the internal cross-section of the grinding wheel disc provided in an embodiment of the valve steel cutting grinding wheel of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Grinding wheel body, 2. Central wheel shaft, 3. Fitting ring, 4. Outer cover ring, 5. Outer baffle, 6. Grinding wheel disc, 7. Accumulation groove, 8. Insertion port, 9. Inner groove, 10. Sliding protrusion, 11. Insertion rod, 12. Sealing gasket, 13. Particle discharge strip, 14. Firming rib, 15. Reinforcing bar, 16. Lower groove, 17. Boron carbide layer, 18. Protrusion, 19. Silicon carbide layer, 20. Corundum layer, 21. Resin diamond layer, 22. Alumina layer, 23. Particle discharge pad, 24. Steel sheet, 25. Mounting plug, 26. Through hole, 27. Movable groove, 28. Outer cylinder, 29. Elastic element, 30. Storage groove, 31. Inner cylinder, 32. Strong spring, 33. Bonding agent. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] like Figure 1-8 As shown in the figure, an embodiment of the present invention provides a valve steel cutting grinding wheel, including a grinding wheel body 1. The grinding wheel body 1 includes a central wheel shaft 2, a fitting ring 3, an outer cover ring 4, and a grinding wheel disc 6. The fitting ring 3 is integrally formed on the outer wall of the central wheel shaft 2. An inner groove 9 is formed on the inner wall of the fitting ring 3, and a sliding protrusion 10 is slidably engaged inside the inner groove 9. An insertion rod 11 is welded to the outer wall of the sliding protrusion 10. An insertion port 8 is formed on one side of the outer wall of the outer cover ring 4. An accumulation groove 7 is formed between the insertion port 8 and the inner groove 9. The inner wall of the accumulation groove 7 is... A discharge strip 13 is provided on one side of the part, and a sealing gasket 12 is bonded to the inside of one end of the discharge strip 13. The insertion rod 11 is inserted into the inside of the sealing gasket 12. Discharge pads 23 are bonded to the outer walls of both sides of the discharge strip 13. Inner cylinders 31 are fixedly installed on both sides of the inside of the grinding wheel 6. A strong spring 32 is fixedly sleeved on the outside of the inner cylinder 31, and an outer cylinder 28 is fixedly installed on one end of the strong spring 32. Storage slots 30 are opened on both sides of the outer wall of the outer cylinder 28, and an elastic element 29 is movably connected to the inner wall of the storage slot 30 through a torsion spring.

[0032] Specifically, in this embodiment, the grinding wheel body 1 includes a central wheel shaft 2, a fitting ring 3, an outer cover ring 4, and a grinding wheel disc 6. The grinding wheel body 1 is installed at the output end of the cutting grinding wheel machine via the central wheel shaft 2. The fitting ring 3 is integrally formed on the outer wall of the central wheel shaft 2. An inner groove 9 is formed on the inner wall of the fitting ring 3, and a sliding protrusion 10 is slidably engaged inside the inner groove 9. The sliding protrusion 10 is slidably engaged inside the inner groove 9, and an insertion device is welded to the outer wall of the sliding protrusion 10. The rod 11 has an insertion port 8 on one side of the outer wall of the outer ring 4. An accumulation groove 7 is formed between the insertion port 8 and the recessed groove 9. A discharge strip 13 is provided on one side of the inner side of the accumulation groove 7. A sealing gasket 12 is adhered to one end of the discharge strip 13. The insertion rod 11 is inserted into the inside of the sealing gasket 12. After the discharge strip 13 enters through the insertion port 8, the sealing gasket 12 of the discharge strip 13 can be inserted into the outside of the insertion rod 11, so that the insertion rod 11 on the sliding protrusion 10 and the discharge strip 13 are connected, and the discharge strip is pushed. After step 13, the discharge bar 13 can rotate around the center point of the central wheel shaft 2, causing the grinding wheel 6 in the accumulation tank 7 to cut and clean the particles. Discharge pads 23 are adhered to both outer walls of the discharge bar 13. When the discharge bar 13 moves, the discharge pads 23 also move, thus sweeping away the grinding wheel particles adhering to the accumulation tank 7. Inner cylinders 31 are fixedly installed on both sides of the grinding wheel 6, and strong springs 32 are fixedly sleeved on the outside of the inner cylinders 31. An outer cylinder 28 is fixedly installed at one end of a force spring 32. The outer cylinder 28 can be ejected from the inner cylinder 31 by the force spring 32, and the outer cylinder 28 can be inserted into the inner ring 4. Storage slots 30 are provided on both sides of the outer wall of the outer cylinder 28, and the inner wall of the storage slot 30 is movably connected to an elastic element 29 by a torsion spring. After the outer cylinder 28 is inserted into the outer ring 4, the elastic element 29 can be removed from the inside of the outer cylinder 28. The elastic element 29 can be stuck in the outer ring 4, so that the grinding wheel 6 and the outer ring 4 are tightly attached.

[0033] The present invention provides a valve steel cutting abrasive wheel, which, through the setting of a discharge strip 13 and a sliding protrusion 10, can block the abrasive wheel cutting particles in the collection groove 7. The sliding protrusion 10 is installed in the recessed groove 9 of the fitting ring 3. The sealing gasket 12 on the discharge strip 13 can be inserted outside the insertion rod 11. As the discharge strip 13 pushes the sliding protrusion 10 to move around, the abrasive wheel cutting particles accumulated in the collection groove 7 are discharged.

[0034] In one embodiment provided by the present invention, such as Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the outer cover ring 4 is welded to the outer wall of the fitting ring 3. Adhesive 33 is bonded to the outer wall of the outer cover ring 4. After the grinding wheel 6 is fixedly fitted on the outer cover ring 4 for a period of time, the adhesive of the adhesive 33 connects the outer cover ring 4 and the grinding wheel 6 into one piece.

[0035] In one embodiment provided by the present invention, such as Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the outer cylinder 28 is sleeved outside the inner cylinder 31, and the outer cylinder 28 can move outside the inner cylinder 31. The inner part of the outer cover ring 4 is provided with several through holes 26, which facilitate the pressing movement of the elastic element 29.

[0036] In one embodiment provided by the present invention, such as Figure 1 , Figure 6 and Figure 7 As shown, movable grooves 27 are provided on both sides of the inner side of the outer ring 4. The through hole 26 and the movable groove 27 are connected. Several mounting plugs 25 are threaded into the inner side of the outer ring 4 near the through hole 26. After the mounting plugs 25 are rotated, it is easy for fingers or other objects to be inserted into the through hole 26, so that the elastic element 29 can move.

[0037] In one embodiment provided by the present invention, such as Figure 1 , Figure 7 and Figure 8 As shown, outer baffles 5 are fixedly installed on both sides of the outer wall of the grinding wheel 6. The structure of the outer baffles 5 strengthens the protection of the outside of the grinding wheel 6 and reduces the damage of the grinding wheel 6. The grinding wheel 6 is fixedly sleeved on the outside of the outer cover ring 4 by the bonding agent 33. The bonding agent 33 tightly fixes the grinding wheel 6 and the outer cover ring 4. The grinding wheel 6 includes a reinforcing rib 14, a boron carbide layer 17 and an aluminum oxide layer 22. The high hardness of the boron carbide layer 17 can reduce the damage of the grinding wheel 6. The aluminum oxide layer 22 is fire-resistant and high-temperature resistant, and can also be treated with high-temperature protection after the grinding wheel 6 is rubbed.

[0038] In one embodiment provided by the present invention, such as Figure 1 , Figure 7 and Figure 8 As shown, the outer wall of the reinforcing rib 14 is fixedly installed in the middle of the inside of the grinding wheel 6. A steel bar 15 is welded on the outer wall of the reinforcing rib 14, and several grooves 16 are provided on the outer wall of the steel bar 15.

[0039] In one embodiment provided by the present invention, such as Figure 1 , Figure 7 and Figure 8 As shown, a resin diamond layer 21 is provided on the inner wall of the alumina layer 22, and a corundum layer 20 is fixedly installed on the inner wall of the resin diamond layer 21. The resin diamond layer 21 and the corundum layer 20 have certain high strength and wear resistance, which provides pressure resistance and wear resistance protection for the grinding wheel 6.

[0040] In one embodiment provided by the present invention, such as Figure 1 , Figure 7 and Figure 8As shown, a silicon carbide layer 19 is bonded to the inner wall of the corundum layer 20, and a boron carbide layer 17 is integrally formed on the inner wall of the silicon carbide layer 19. The silicon carbide layer 19 has high hardness and is corrosion resistant.

[0041] In one embodiment provided by the present invention, such as Figure 1 , Figure 7 and Figure 8 As shown, the boron carbide layer 17 has several protrusions 18 integrally formed inside. The protrusions 18 are engaged with the inner wall of the lower groove 16 to stably fix the boron carbide layer 17 and the steel bar 15.

[0042] In one embodiment provided by the present invention, such as Figure 1 and Figure 7 As shown, a number of steel sheets 24 are integrally formed on the outer wall of the outer baffle 5, and the steel sheets 24 are arranged in a ring array on the outside of the outer baffle 5. The steel sheets 24 are distributed on the outside of the outer baffle 5, which strengthens the structural strength of the outer baffle 5. One end of the elastic member 29 is stuck inside the movable groove 27, and the elastic member 29 can be combined with the outer cover ring 4.

[0043] Working principle: The operator places the grinding wheel 6 on the outside of the outer cover ring 4. The outer cylinder 28 of the grinding wheel 6 is pushed by the strong spring 32, moving the outer cylinder 28 outside the inner cylinder 31. The outer cylinder 28 can also be inserted into the inside of the outer cover ring 4. The elastic element 29 pops out from the inside of the storage groove 30 through the torsion spring and can be locked in the outer cover ring 4, connecting the grinding wheel 6 and the outer cover ring 4 together. Rotating the mounting plug 25 allows fingers or tools to be inserted into the movable groove 27. Pressing the elastic element 29 returns it to its original position. After a period of time, the adhesive 33 on the outside of the outer cover ring 4 causes the inner wall of the grinding wheel 6 to adhere to the outer cover ring 4 and fix it. The operator inserts the discharge strip 13 into the recessed groove 9 and the accumulation groove 7 through the insertion port 8. The sealing gasket 12 of the discharge strip 13 is inserted into the outside of the insertion rod 11 outside the sliding protrusion 10. The operator pushes the discharge strip 13. The discharge bar 13 moves within the accumulation trough 7 via the sliding protrusion 10, causing it to rotate around the center of the central wheel shaft 2. This allows it to collect and remove the dust and grinding wheel particles accumulated in the accumulation trough 7. The outer baffle 5 prevents the grinding wheel 6 from breaking and splashing. The steel plate 24 on the outer baffle 5 strengthens the structural stability. The reinforcing bar 15 inside the grinding wheel 6 is fitted with a lower groove 16. The protrusion 18 of the boron carbide layer 17 can be inserted into the lower groove 16 to stably fix the boron carbide layer 17 and the reinforcing bar 15. The boron carbide layer 17 has high hardness, reducing the damage to the grinding wheel 6 and has high thermal stability. The silicon carbide layer 19 has high hardness and corrosion resistance. The corundum layer 20 has wear resistance and corrosion resistance. The resin diamond layer 21 has high strength and wear resistance. The alumina layer 22 is heat resistant and fire resistant, providing high-temperature protection during the friction of the grinding wheel 6.

[0044] Example 1

[0045] This invention provides a valve steel cutting abrasive wheel, comprising a wheel body 1, a central wheel shaft 2, a fitting ring 3, an outer cover ring 4, and a wheel disc 6. The wheel body 1 is mounted on the output end of a cutting abrasive machine via the central wheel shaft 2. The fitting ring 3 is integrally formed on the outer wall of the central wheel shaft 2. An inner groove 9 is formed on the inner wall of the fitting ring 3, and a sliding protrusion 10 is slidably engaged inside the inner groove 9. The sliding protrusion 10 is slidably engaged inside the inner groove 9. An insertion rod 11 is welded to the outer wall. An insertion port 8 is opened on one side of the outer wall of the outer cover ring 4. An accumulation groove 7 is opened between the insertion port 8 and the recessed groove 9. A grain discharge strip 13 is provided on one side of the inside of the accumulation groove 7. A sealing gasket 12 is glued to the inside of one end of the grain discharge strip 13. The insertion rod 11 is inserted into the inside of the sealing gasket 12. After the grain discharge strip 13 enters through the insertion port 8, the sealing gasket 12 of the grain discharge strip 13 can be inserted into the outside of the insertion rod 11, so that the insertion rod 11 on the sliding protrusion 10 and the grain discharge strip 13 are connected. After the discharge bar 13 is pushed, it can rotate around the center point of the central wheel shaft 2, causing the grinding wheel 6 in the collection tank 7 to cut and clean the particles. Discharge pads 23 are adhered to both outer walls of the discharge bar 13. When the discharge bar 13 moves, the discharge pads 23 also move, and the discharge pads 23 can sweep away the grinding wheel particles adhering to the collection tank 7. Inner cylinders 31 are fixedly installed on both sides of the grinding wheel 6, and strong springs 32 are fixedly sleeved on the outside of the inner cylinders 31. Furthermore, an outer cylinder 28 is fixedly installed at one end of a strong spring 32. The outer cylinder 28 can be ejected from the inner cylinder 31 by the strong spring 32, and the outer cylinder 28 can be inserted into the interior of the outer cover ring 4. Storage slots 30 are provided on both sides of the outer wall of the outer cylinder 28, and an elastic element 29 is movably connected to the inner wall of the storage slot 30 through a torsion spring. After the outer cylinder 28 is inserted into the outer cover ring 4, the elastic element 29 can be removed from the interior of the outer cylinder 28. The elastic element 29 can be stuck in the outer cover ring 4, so that the grinding wheel 6 and the outer cover ring 4 are tightly attached.

[0046] Example 2

[0047] This embodiment further limits the scope of Embodiment 1, such as... Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the outer ring 4 is welded to the outer wall of the fitting ring 3. An adhesive 33 is bonded to the outer wall of the outer ring 4. After the grinding wheel 6 is fixedly fitted onto the outer ring 4 for a period of time, the adhesive 33's stickiness connects the outer ring 4 and the grinding wheel 6 into a single unit. Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the outer cylinder 28 is fitted over the inner cylinder 31, and the outer cylinder 28 can move outside the inner cylinder 31. The outer cover ring 4 has several through holes 26 inside, which facilitate the pressing movement of the elastic element 29; for example... Figure 1 , Figure 6 and Figure 7 As shown, movable grooves 27 are provided on both sides of the inner side of the outer ring 4. The through hole 26 and the movable grooves 27 are connected. Several mounting plugs 25 are threaded into the inner side of the outer ring 4 near the through hole 26. After the mounting plugs 25 are rotated, fingers or other objects can be inserted into the through hole 26 to move the elastic element 29. Figure 1 , Figure 7 and Figure 8 As shown, outer baffles 5 are fixedly installed on both sides of the outer wall of the grinding wheel 6. The structure of the outer baffles 5 strengthens the external protection of the grinding wheel 6, reducing the damage to the grinding wheel 6. The grinding wheel 6 is fixedly sleeved on the outside of the outer cover ring 4 by a bonding agent 33. The bonding agent 33 tightly fixes the grinding wheel 6 and the outer cover ring 4 together. The grinding wheel 6 includes a reinforcing rib 14, a boron carbide layer 17, and an alumina layer 22. The high hardness of the boron carbide layer 17 can reduce the damage to the grinding wheel 6, and the alumina layer 22 is fire-resistant and high-temperature resistant, and can also be treated with high-temperature protection after the grinding wheel 6 is rubbed. Figure 1 , Figure 7 and Figure 8 As shown, the outer wall of the reinforcing rib 14 is fixedly installed in the middle of the interior of the grinding wheel 6. A reinforcing bar 15 is welded to the outer wall of the reinforcing rib 14, and several recessed grooves 16 are formed on the outer wall of the reinforcing bar 15. Figure 1 , Figure 7 and Figure 8 As shown, a resin-diamond layer 21 is disposed on the inner wall of the alumina layer 22, and a corundum layer 20 is fixedly installed on the inner wall of the resin-diamond layer 21. The resin-diamond layer 21 and the corundum layer 20 have certain high strength and wear resistance, providing pressure-resistant and wear-resistant protection for the grinding wheel 6; Figure 1 , Figure 7 and Figure 8 As shown, a silicon carbide layer 19 is bonded to the inner wall of the corundum layer 20, and a boron carbide layer 17 is integrally formed on the inner wall of the silicon carbide layer 19. The silicon carbide layer 19 has high hardness and is corrosion resistant; as shown... Figure 1 , Figure 7 and Figure 8 As shown, the boron carbide layer 17 has several protrusions 18 integrally formed inside. These protrusions 18 engage with the inner wall of the lower groove 16, stably fixing the boron carbide layer 17 and the reinforcing bar 15. Figure 1 and Figure 7 As shown, a number of steel sheets 24 are integrally formed on the outer wall of the outer baffle 5, and the steel sheets 24 are arranged in a ring array on the outside of the outer baffle 5. The steel sheets 24 are distributed on the outside of the outer baffle 5, which strengthens the structural strength of the outer baffle 5. One end of the elastic member 29 is stuck inside the movable groove 27, and the elastic member 29 can be combined with the outer cover ring 4.

[0048] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A valve steel cutting abrasive wheel, comprising a wheel body (1), characterized in that, The grinding wheel body (1) includes a central wheel shaft (2), a fitting ring (3), an outer cover ring (4), and a grinding wheel disc (6). The fitting ring (3) is integrally formed on the outer wall of the central wheel shaft (2). An inner groove (9) is provided on the inner wall of the fitting ring (3), and a sliding protrusion (10) is slidably engaged inside the inner groove (9). An insertion rod (11) is welded to the outer wall of the sliding protrusion (10). An insertion port (8) is provided on one side of the outer wall of the outer cover ring (4). An accumulation groove (7) is provided between the insertion port (8) and the inner groove (9). A particle discharge strip (13) is provided on one side of the inner wall of the accumulation groove (7). A sealing gasket (12) is bonded to one end of the particle discharge strip (13). The insertion rod (11) is inserted into the inner wall of the sealing gasket (12). Particle discharge pads (23) are bonded to both outer walls of the particle discharge strip (13). The grinding wheel (6) has an inner cylinder (31) fixedly installed on both sides inside. A strong spring (32) is fixedly sleeved on the outside of the inner cylinder (31), and an outer cylinder (28) is fixedly installed on one end of the strong spring (32). Storage slots (30) are opened on both sides of the outer wall of the outer cylinder (28), and an elastic element (29) is movably connected to the inner wall of the storage slot (30) through a torsion spring. The outer cover ring (4) is welded to the outer wall of the fitting ring (3), and an adhesive (33) is bonded to the outer wall of the outer cover ring (4); the outer cylinder (28) is fitted outside the inner cylinder (31), and several through holes (26) are opened inside the outer cover ring (4); movable grooves (27) are opened on both sides of the inner side of the outer cover ring (4), and the through holes (26) and the movable grooves (27) are connected; The grinding wheel (6) has outer baffles (5) fixedly installed on both sides of its outer wall. The grinding wheel (6) is fixedly sleeved on the outside of the outer cover ring (4) by a bonding agent (33). The grinding wheel (6) includes a reinforcing rib (14), a boron carbide layer (17), and an aluminum oxide layer (22). The outer wall of the reinforcing rib (14) is fixedly installed in the middle of the inside of the grinding wheel (6). A steel bar (15) is welded on the outer wall of the reinforcing rib (14). Several grooves (16) are opened on the outer wall of the steel bar (15). A resin diamond layer (21) is provided on the inner wall of the alumina layer (22), and a corundum layer (20) is fixedly installed on the inner wall of the resin diamond layer (21); a silicon carbide layer (19) is bonded to the inner wall of the corundum layer (20), and a boron carbide layer (17) is integrally formed on the inner wall of the silicon carbide layer (19); a plurality of protrusions (18) are integrally formed inside the boron carbide layer (17), and the protrusions (18) are engaged with the inner wall of the lower groove (16).

2. The valve steel cutting abrasive wheel according to claim 1, characterized in that, Several steel sheets (24) are integrally formed on the outer wall of the outer baffle (5), and the steel sheets (24) are arranged in a ring array outside the outer baffle (5).

3. The valve steel cutting abrasive wheel according to claim 1, characterized in that, The outer cover ring (4) has several mounting plugs (25) inserted into its internal threads near the through hole (26).

4. The valve steel cutting abrasive wheel according to claim 1, characterized in that, One end of the elastic element (29) is engaged inside the movable groove (27).

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