Manganese steel casting quenching device for mining equipment

Abstract

The invention discloses a manganese steel casting quenching device for mining equipment, and belongs to the field of casting and quenching, the manganese steel casting quenching device comprises a seat body, a quenching tank arranged in the seat body and a quenching frame positioned in the quenching tank, the inner side wall of the quenching tank is provided with a plurality of liquid pumping ports, and the inner bottom wall of the quenching tank is provided with a plurality of liquid inlets; the interior of the seat body is connected with a circulating purification unit, and the circulating purification unit comprises a box body connected to the interior of the seat body, a cover body fixedly connected to the upper end of the box body, and two cavities I and a cavity II which are formed in the box body; the cooling oil in the quenching tank is circularly filtered, so that the oil can be kept clean, oil aging caused by accelerated chemical reaction (such as oxidation reaction) of impurities and oxides in the oil is avoided, and the situation that local cooling efficiency difference of a workpiece is possibly caused by the impurities is avoided by reducing catalytic impurities and prolonging the effective service cycle of the oil; and the problems of hardness and uneven structure distribution are reduced.

Description

Technical Field

[0001] The invention relates to the field of casting and quenching, and more specifically to a manganese steel casting quenching device for mining equipment. Background Art

[0002] Mining equipment refers to various special mechanical equipment used in the mining production process. Manganese steel castings have excellent wear resistance and toughness and are important parts of mining equipment. Manganese steel castings usually have a higher alloy content (such as 12% to 14% manganese). This high manganese steel has strong hardenability and high wear resistance and toughness. Therefore, its unique physical and chemical properties need to be considered during quenching. For manganese steel castings, the commonly used quenching methods are oil quenching and water quenching.

[0003] For example, the prior art (Chinese invention patent with announcement number CN110885924B) discloses a quenching device for manganese steel castings for mining equipment, which uses water quenching to quench manganese steel castings, and is provided with an air suction structure to pump the water vapor in the quenching box into the air suction box, and then condense and collect the water vapor to avoid the water vapor from causing harm to the health of the operator; Since water quenching has the fastest cooling speed, higher hardness and faster phase change speed can be obtained, but the high manganese content of manganese steel makes it easy for excessive thermal stress to occur during water quenching, resulting in cracks. Oil quenching can cool the casting relatively slowly, thereby reducing thermal stress during the cooling process and avoiding the occurrence of cracks. Therefore, the most commonly used method in the prior art is oil quenching, but the following problems will arise during the oil quenching process. The oil will react with oxygen at high temperatures to produce an oxidation reaction. Especially during the quenching process, when the oil comes into contact with the casting, the oil temperature rises. Oil used at high temperatures for a long time is prone to oxidation. The oxidation reaction will cause chemical changes in components such as grease, additives, etc. in the oil to produce oxidation products. These products may accumulate in the oil in the form of particles, precipitation, etc., or adhere to the surface of the casting to form oil residue. Impurities and oxides in the oil are deposited on the surface of the casting, which may cause local overheating or uneven cooling, affecting the quenching effect of the casting. Summary of the invention

[0004] In view of the problems existing in the prior art, the object of the present invention is to provide a manganese steel casting quenching device for mining equipment.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A manganese steel casting quenching device for mining equipment comprises a seat body, a quenching tank provided inside the seat body, and a quenching frame located inside the quenching tank, wherein the inner side wall of the quenching tank is provided with a plurality of liquid extraction ports and the inner bottom wall of the quenching tank is provided with a plurality of liquid inlets; The seat body is connected with a circulation purification unit, and the circulation purification unit includes a box body connected to the inside of the seat body, a cover body fixedly connected to the upper end of the box body, two cavities 1 and 2 opened in the box body, two pump bodies 1 and 2 respectively fixedly connected to the inner walls of the two cavities 1, a fixed seat and a filter plate fixedly connected to the inner wall of the cavity 2, two pipes 1 connected to the liquid inlet, and two pipes 2 connected to the liquid outlet, and one side of the filter plate is fixedly connected to one side of the fixed seat; The other ends of the two pipes one pass through the cover body into the cavity one and are connected to the input end of the pump body one, the other ends of the two pipes two pass through the box body and are connected to the output end of the pump body two, and the output ends of the two pump bodies one and the input ends of the two pump bodies two all pass through the cavity two.

[0007] Furthermore, a material removal assembly is connected to the interior of the second cavity, and the material removal assembly includes a screw rod rotatably connected to the inner wall of the second cavity, a guide rod fixedly connected to the inner wall of the second cavity, a movable plate screwed to the outside of the screw rod and movably sleeved on the outside of the guide rod, and a scraper fixedly connected to one side of the movable plate, and the lower end of the scraper is in contact with the upper end of the filter plate. A motor 1 is fixedly connected to the outer surface of one side of the box body, and the output shaft of the motor 1 passes through the box body and is fixedly connected to one end of the screw rod.

[0008] Furthermore, a discharge port connected to cavity 2 is opened inside the box body, and the discharge port is opened above one end of the filter plate. A storage box for collecting material discharged from the discharge port is fixedly connected to the outer surface of one side of the box body, and the shape of the discharge port is the same as that of the scraper.

[0009] Furthermore, an oxygen slowing unit is connected to the inside of the seat body, and the oxygen slowing unit includes a driving part connected to the upper and lower ends of the cover body, a rotary joint 1 fixedly connected to the upper end of the cover body, two rotary joints 2 and two pump bodies 4 fixedly connected to the lower end of the box body, a storage box and a pump body 3 fixedly connected to the lower end of the box body, a pipe 4 connecting the input ends of the two pump bodies 4 with the output ends of the storage box, a pipe 3 connecting the output end of the pump body 3 with the input end of the rotary joint 1, the output ends of the two pump bodies 4 are respectively connected to the input ends of the two rotary joints 2, the input end of the pump body 3 is connected to the output end of the storage box, and the inner tubes of the rotary joint 1 and the two rotary joints 2 extend into the cavity 2 and are connected to the drainage assembly inside the cavity 2.

[0010] Furthermore, the drainage assembly includes a hollow tube body 1 whose two ends are rotatably connected to the lower end of the cover body and the inner wall of the second cavity, two hollow tube bodies 2 whose two ends are rotatably connected to the lower end of the filter plate and the inner wall of the second cavity, and a plurality of drainage ports opened on the outside of the hollow tube body 1 and the hollow tube body 2, the inner tube of the rotary joint 1 is inserted into the interior of the hollow tube body 1, and the inner tubes of the two rotary joints 2 are respectively inserted into the interiors of the two hollow tube bodies 2.

[0011] Furthermore, the driving part includes a motor 2 fixedly connected to the upper end of the cover body, a gear 1 rotatably connected to the lower end of the cover body and a gear 2 meshing with the gear 1, and the gear 2 is fixedly sleeved on the outside of the hollow tube body 1, and the drainage component also includes a sprocket 1 and two sprockets 2 rotatably connected to the inner wall of the cavity 2, a chain belt connecting the sprocket 1 with the two sprockets 2, and the sprocket 1 is fixedly sleeved on the outside of the hollow tube body 1, and the two sprockets 2 are respectively fixedly sleeved on the outside of the two hollow tube bodies 2.

[0012] Furthermore, an isolation unit is also connected to the upper end of the seat body, and the isolation unit includes two groups of slide grooves symmetrically opened at the upper end of the seat body, two groups of slide bars respectively slidably connected to the two groups of slide grooves, two baffles respectively fixed on one side of the two groups of slide bars, tooth grooves opened at the lower ends of the two baffles, a cavity three opened inside the two baffles, pipe interfaces respectively opened on one side of the two baffles and respectively connected with the three cavities inside the two baffles, and a avoidance groove opened on one side of the two baffles and used to accommodate the quenching rack. The seat body is also connected to two driving components for respectively driving the two baffles to move.

[0013] Furthermore, the driving assembly includes a synchronous shaft 1 and a synchronous shaft 2 which are rotatably connected inside the seat body, two gears 3 fixedly connected to the two ends of the synchronous shaft 2, a synchronous belt which transmits and connects the synchronous shaft 1 and the synchronous shaft 2, and a motor 3 fixedly connected to the outer surface of one side of the seat body, and the output shaft of the motor 3 passes through the interior of the seat body and is fixedly connected to one end of the synchronous shaft 1, and the gear 3 is meshed with the tooth groove.

[0014] Furthermore, a ventilation and oxygen-proof unit is connected to the inside of the quenching tank, and the ventilation and oxygen-proof unit includes a hollow pipe fixedly connected to the inner wall of the quenching tank and an exhaust port opened on the outer surface of the hollow pipe. A pump body five is fixedly connected to the outer surface of one side of the seat body, and the output end of the pump body five is connected to the hollow pipe. A one-way valve is installed at the connection between the output end of the pump body five and the hollow pipe.

[0015] Furthermore, an ultrasonic transducer is fixedly connected to the lower end of the quenching frame, and an ultrasonic generator connected to the ultrasonic transducer is fixedly connected to the outer surface of one side of the quenching frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) This scheme is provided with a purification unit, which pumps the oil above the quenching tank into the cavity two through the pump body one, and filters the impurities and oxides in the oil through the filter plate to keep the oil clean, avoid impurities and oxides in the oil accelerating chemical reactions (such as oxidation reactions) caused by oil aging, and extend the effective service life of the oil by reducing catalytic impurities. At the same time, the clean oil flows more evenly, which can ensure the cooling consistency of the casting, avoid the local cooling efficiency differences of the workpiece that may be caused by impurities, and reduce the problem of uneven hardness and structure distribution.

[0017] (2) This scheme is provided with an oxygen slowing unit, and an antioxidant is pumped into the rotary joint one and the rotary joint two through the pump body three and the pump body four respectively. The antioxidant is discharged from the drain ports on the hollow tube body one and the hollow tube body two and reacts with the oil filtered by the filter plate in the cavity two. The antioxidant captures free radicals in the oil, inhibits the occurrence of oxidation reaction, improves the thermal stability of the oil, enables the oil to maintain good cooling performance and lubricity at high temperatures, is not easy to deteriorate, slows down the speed of the oil's reaction with oxygen in a high temperature environment, and thus extends the service life of the oil. When the oil undergoes an oxidation reaction, acidic substances and colloidal substances will be generated in the oil. These substances will form sediments, affecting the cleanliness of the oil. The generation of these sediments is reduced by the antioxidant, thereby maintaining the purity and cooling effect of the oil.

[0018] (3) This solution is provided with an isolation unit. When the quenching rack drives the casting into the quenching tank for quenching or the quenching rack is moved out of the quenching tank, the driving assembly drives the baffle to move and closes the opening of the quenching tank through the two baffles, thereby preventing the quenching oil from contacting the air and reducing the formation of oxidation products (such as oil residue) on the oil surface. It also prevents the dust, particles, moisture, etc. in the air from entering the oil and causing pollution when the oil is exposed to the air for a long time, thereby extending the service life of the cooling oil. At the same time, when the workpiece enters the oil, it may cause the oil to splash. Closing the baffle can effectively prevent the splashing high-temperature oil from damaging the operator or surrounding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the quenching tank, the slide chute and the liquid extraction port of the present invention; Figure 3 It is a schematic diagram of the structure of the ventilation and oxygen prevention unit and the liquid inlet of the present invention; Figure 4 It is a schematic diagram of the structure of the circulation purification unit of the present invention; Figure 5 It is a schematic diagram of the internal structure of cavity 1 and cavity 2 of the present invention; Figure 6 It is a schematic diagram of the structure of the oxygen slowing unit of the present invention; Figure 7 It is a schematic diagram of the structure of the driving part and the liquid discharge assembly of the present invention; Figure 8 It is a schematic diagram of the isolation unit and the driving assembly structure of the present invention; Fig. 9 It is a schematic structural diagram of the ultrasonic generator and ultrasonic transducer of the present invention.

[0020] Description of the numbers in the figure: 1. Base; 11. Quenching tank; 12. Liquid extraction port; 13. Liquid inlet; 2. Quenching rack; 3. Circulation purification unit; 31. Box; 311. Cavity 1; 312. Cavity 2; 313. Discharge port; 32. Cover; 33. Pump body 1; 34. Pump body 2; 35. Pipeline 1; 36. Pipeline 2; 37. Filter plate; 38. Material removal assembly; 381. Motor 1; 382. Screw rod; 383. Movable plate; 384. Guide rod; 385. Scraper; 386. Storage box; 39. Fixed seat; 4. Oxygen slowing unit; 41. Drive unit; 411. Motor 2; 412. Gear 1; 413. Gear 2; 42. Rotary joint 1; 43. Pipeline 3; 44. Pump body 3; 45. Storage box ;46. Rotary joint two;47. Pump body four;48. Pipeline four;49. Drain assembly;491. Hollow tube one;492. Sprocket one;493. Hollow tube two;494. Sprocket two;495. Chain belt;496. Drain port;5. Isolation unit;51. Baffle;511. Slide bar;512. Tooth groove;52. Drive assembly;521. Motor three;522. Synchronous shaft one;523. Synchronous belt;524. Synchronous shaft two;525. Gear three;53. Slide groove;54. Pipeline interface;55. Cavity three;56. Avoidance groove;6. Ventilation and oxygen prevention unit;61. Hollow pipe;62. Exhaust port;63. Pump body five;64. Ultrasonic generator;65. Ultrasonic transducer unit. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 9 A manganese steel casting quenching device for mining equipment comprises a seat body 1, a quenching tank 11 provided inside the seat body 1, and a quenching frame 2 located inside the quenching tank 11, wherein the inner side wall of the quenching tank 11 is provided with a plurality of liquid extraction ports 12, and the inner bottom wall of the quenching tank 11 is provided with a plurality of liquid inlets 13; The seat body 1 is internally connected with a circulation purification unit 3, and the circulation purification unit 3 includes a box body 31 connected to the inside of the seat body 1, a cover body 32 fixedly connected to the upper end of the box body 31, two cavities 1 311 and one cavity 2 312 opened in the box body 31, two pump bodies 1 33 and two pump bodies 2 34 respectively fixedly connected to the inner walls of the two cavities 1 311, a fixed seat 39 and a filter plate 37 fixedly connected to the inner wall of the cavity 2 312, two pipes 1 35 connected to the liquid inlet 13, and two pipes 2 36 connected to the liquid outlet, and one side of the filter plate 37 is fixedly connected to one side of the fixed seat 39; The other ends of the two pipes 1 35 pass through the cover body 32 into the cavity 1 311 and are connected to the input end of the pump body 1 33. The other ends of the two pipes 2 36 pass through the box body 31 and are connected to the output end of the pump body 2 34. The output ends of the two pump bodies 1 33 and the input ends of the two pump bodies 2 34 both pass through the cavity 2 312.

[0023] The interior of the second cavity 312 is connected with a material removal assembly 38, and the material removal assembly 38 includes a screw rod 382 rotatably connected to the inner wall of the second cavity 312, a guide rod 384 fixedly connected to the inner wall of the second cavity 312, a movable plate 383 screwed to the outside of the screw rod 382 and movably sleeved on the outside of the guide rod 384, and a scraper 385 fixedly connected to one side of the movable plate 383, and the lower end of the scraper 385 is in contact with the upper end of the filter plate 37. A motor 1 381 is fixedly connected to the outer surface of one side of the box body 31, and the output shaft of the motor 1 381 passes through the box body 31 and is fixedly connected to one end of the screw rod 382.

[0024] A discharge port 313 connected to the second cavity 312 is provided inside the box body 31, and the discharge port 313 is provided above one end of the filter plate 37. A storage box 386 for collecting materials discharged from the discharge port 313 is fixedly connected to the outer surface of one side of the box body 31, and the shape of the discharge port 313 is the same as that of the scraper 385.

[0025] By adopting the above technical solution, the top of the quenching rack 2 is used to connect with the robot arm or the shift unit, the manganese steel casting is placed on the quenching rack 2, and then the quenching rack 2 is controlled to enter the oil in the quenching tank 11 for oil quenching. There must be a temperature control mechanism for controlling the oil temperature inside the quenching tank 11. The temperature control of the quenching liquid belongs to the common technology in the quenching field, which will not be repeated here. When the manganese steel casting and the quenching rack 2 enter the quenching tank 11, the liquid level inside the quenching tank 11 rises, and the oil can enter the liquid extraction port 12. The oil in the liquid extraction port 12 is pumped into the second cavity 312 through the pump body 1 33. After the oil enters the second cavity 312, it falls on the filter plate 37. The filter plate 37 filters the impurities and oxides in the oil to keep the oil clean and prevent the impurities and oxides from accelerating chemical reactions (such as oxidation reactions) in the oil, causing oil aging. By reducing catalytic impurities, the effective service life of the oil is extended. The oil filtered by the filter plate 37 is extracted from the second cavity 312 by the pump body 2 34 and re-entered from the liquid inlet 13. The oil is newly discharged into the quenching tank 11. The circulating flow of the oil in the quenching tank 11 can reduce the temperature difference in the quenching pool and make the temperature of the quenching oil more uniform, thereby ensuring that the cooling rate of each part of the workpiece is consistent, avoiding local insufficient cooling or overcooling. The oil filtered and cleaned by the filter plate 37 flows more evenly, which can ensure the cooling consistency of the casting, avoid impurities that may cause local cooling efficiency differences, and reduce the problems of uneven hardness and tissue distribution. The motor 381 is driven regularly to drive the screw rod 382 to rotate, and the rotation of the screw rod 382 drives the movable plate 383 to move. The movement of the movable plate 383 drives the scraper 385 to move. The impurities on the upper end of the filter plate 37 are scraped off by the movement of the scraper 385, and the scraper 385 moves toward the discharge port 313. After the scraper 385 moves into the discharge port 313, the impurities can be pushed into the storage box 386. By arranging movable doors (not numbered in the figure) on both sides of the seat body 1, the impurities stored in the storage box 386 can be regularly processed by opening the movable doors.

[0026] like Figure 5-Figure 7 As shown, the seat body 1 is also connected to an oxygen buffer unit 4, and the oxygen buffer unit 4 includes a driving part 41 connected to the upper and lower ends of the cover body 32, a rotary joint 1 42 fixedly connected to the upper end of the cover body 32, two rotary joints 2 46 and two pump bodies 47 fixedly connected to the lower end of the box body 31, a storage box 45 and a pump body 3 44 fixedly connected to the lower end of the box body 31, a pipe 48 connecting the input ends of the two pump bodies 47 with the output ends of the storage box 45, and a pipe 3 43 connecting the output end of the pump body 3 44 with the input end of the rotary joint 1 42, the output ends of the two pump bodies 47 are respectively connected to the input ends of the two rotary joints 2 46, the input end of the pump body 3 44 is connected to the output end of the storage box 45, and the inner tubes of the rotary joint 1 42 and the two rotary joints 2 46 extend into the cavity 2 312 and are connected to the drainage assembly 49 inside the cavity 2 312.

[0027] The drainage assembly 49 includes a hollow tube body 491 whose two ends are rotatably connected to the lower end of the cover body 32 and the inner wall of the second cavity 312, two hollow tube bodies 493 whose two ends are rotatably connected to the lower end of the filter plate 37 and the inner wall of the second cavity 312, and a plurality of drainage ports 496 opened on the outside of the hollow tube body 491 and the hollow tube body 493. The inner tube of the rotary joint 42 is inserted into the interior of the hollow tube body 491, and the inner tubes of the two rotary joints 46 are respectively inserted into the interiors of the two hollow tube bodies 493.

[0028] The driving part 41 includes a motor 2 411 fixedly connected to the upper end of the cover body 32, a gear 1 412 rotatably connected to the lower end of the cover body 32 and a gear 2 413 meshing with the gear 1 412, and the gear 2 413 is fixedly sleeved on the outside of the hollow tube body 1 491, and the drainage component 49 also includes a sprocket 1 492 and two sprocket 2 494 rotatably connected to the inner wall of the cavity 2 312, and a chain belt 495 connecting the sprocket 1 492 and the two sprocket 2 494, and the sprocket 1 492 is fixedly sleeved on the outside of the hollow tube body 1 491, and the two sprocket 2 494 are respectively fixedly sleeved on the outside of the two hollow tube bodies 2 493.

[0029] By adopting the above technical solution, the antioxidant in the storage box 45 is pumped into the rotary joint 1 42 and the rotary joint 2 46 through the pump body 3 44 and the pump body 4 47, and the antioxidant enters the hollow tube body 1 491 and the hollow tube body 2 493 from the rotary joint 1 42 and the rotary joint 2 46 respectively, and is discharged from the drain port 496 outside the hollow tube body 1 491 and the hollow tube body 2 493. After the antioxidant is discharged, it reacts with the oil filtered by the filter plate 37 in the cavity 2 312. The antioxidant captures free radicals in the oil, inhibits the occurrence of oxidation reaction, improves the thermal stability of the oil, enables the oil to maintain good cooling performance and lubricity at high temperature, is not easy to deteriorate, and slows down the reaction rate of the oil with oxygen in a high temperature environment, thereby extending the use of the oil. cycle, when the oil undergoes oxidation reaction, acidic substances and colloidal substances will be generated in the oil, which will form sediments and affect the cleanliness of the oil. Antioxidants are used to reduce the generation of these sediments to maintain the purity of the oil and the cooling effect. When the motor 2 411 works to drive the gear 1 412 and the gear 2 413 to rotate, the gear 2 413 drives the hollow tube 1 491 to rotate, and the rotation of the hollow tube 1 491 drives the other two sprockets 2 494 to rotate through the sprocket 1 492 and the chain belt 495. The rotation of the two sprockets 2 494 can respectively drive the two hollow tubes 2 493 to rotate, and the rotation of the two hollow tubes 2 493 and the hollow tube 1 491 can make the oil in the cavity 2 312 flow, which is conducive to a more uniform mixing reaction between the antioxidant and the oil.

[0030] like Figure 2 and Figure 8As shown, the upper end of the seat body 1 is also connected to an isolation unit 5, and the isolation unit 5 includes two groups of slide grooves 53 symmetrically opened at the upper end of the seat body 1, two groups of slide bars 511 respectively slidably connected to the two groups of slide grooves 53, two baffles 51 respectively fixed to one side of the two groups of slide bars 511, tooth grooves 512 opened at the lower ends of the two baffles 51, cavities 55 opened inside the two baffles 51, pipe interfaces 54 respectively opened on one side of the two baffles 51 and respectively connected to the cavities 55 inside the two baffles 51, and avoidance grooves 56 opened on one side of the two baffles 51 for accommodating the quenching rack 2. The seat body 1 is also connected to two driving components 52 for respectively driving the two baffles 51 to move.

[0031] The driving assembly 52 includes a synchronous shaft 1 522 and a synchronous shaft 2 524 rotatably connected inside the seat body 1, two gears 3 525 fixedly connected to the two ends of the synchronous shaft 2 524, a synchronous belt 523 that transmits and connects the synchronous shaft 1 522 and the synchronous shaft 2 524, and a motor 3 521 fixedly connected to the outer surface of one side of the seat body 1, and the output shaft of the motor 3 521 passes through the interior of the seat body 1 and is fixedly connected to one end of the synchronous shaft 1 522, and the gear 3 525 is meshed with the tooth groove 512.

[0032] By adopting the above technical solution, the motor 3 521 can drive the synchronous shaft 1 522 to rotate, the synchronous shaft 1 522 rotates and drives the synchronous shaft 2 524 to rotate through the synchronous belt 523, and the synchronous shaft 2 524 rotates and drives the gear 3 525 to rotate (the transmission principle of the synchronous shaft 1 522, the synchronous shaft 2 524 and the synchronous belt 523 is the same as the principle of the synchronous wheel and the synchronous belt. The synchronous shaft 1 522 and the synchronous shaft 2 524 are equivalent to the elongated synchronous wheels, which belong to the mature existing technology and will not be repeated here), the gear 3 525 rotates and drives the baffle 51 to move through the tooth groove 512. When the baffle 51 moves, the slide bar 511 can slide in the slide groove 53 to guide the movement of the baffle 51. When the quenching rack 2 drives the casting into the quenching tank 11 for quenching or quenching When the fire rack 2 is removed from the quenching tank 11, the driving assembly 52 drives the two baffles 51 to move relative to each other, and the two baffles 51 are used to close the opening of the quenching tank 11 to prevent the quenching oil from contacting the air, which can reduce the formation of oxidation products (such as oil residue) on the oil surface, and prevent the dust, particles, moisture, etc. in the air from entering the oil and polluting it when the oil is exposed to the air for a long time, thereby extending the service life of the cooling oil. At the same time, when the workpiece enters the oil, it may cause oil splashing. Closing the baffle 51 can effectively prevent the splashing high-temperature oil from damaging the operator or surrounding equipment. The pipeline interface 54 is connected to a negative pressure exhaust pipeline. The gas generated when the workpiece enters the quenching oil can enter the pipeline interface 54 through the cavity three 55, be extracted by the negative pressure exhaust pipeline and condensed.

[0033] like Figure 3 and Fig. 9As shown, the interior of the quenching tank 11 is also connected to a ventilation and oxygen-proof unit 6, and the ventilation and oxygen-proof unit 6 includes a hollow pipe 61 fixedly connected to the inner wall of the quenching tank 11, and an exhaust port 62 opened on the outer surface of the hollow pipe 61. A pump body 63 is fixedly connected to the outer surface of one side of the seat body 1, and the output end of the pump body 63 is connected to the hollow pipe 61. A one-way valve is installed at the connection between the output end of the pump body 63 and the hollow pipe 61.

[0034] An ultrasonic transducer 65 is fixedly connected to the lower end of the quenching rack 2 , and an ultrasonic generator 64 connected to the ultrasonic transducer 65 is fixedly connected to the outer surface of one side of the quenching rack 2 .

[0035] By adopting the above technical solution, the input end of the pump body 5 63 is externally connected to a pipeline for conveying inert gas. The pump body 5 63 pumps the inert gas into the hollow pipeline 61 and discharges it from the exhaust port 62. The inert gas rises to the liquid surface in the oil and then breaks, forming a gas protection layer between the oil surface and the air, reducing the contact between oxygen and oil, further reducing the risk of oxidation, and at the same time inhibiting the combustion of the combustible gas (such as quenching oil vapor) above the oil surface after mixing with the air. When the inert gas rises in the oil, it will form a small disturbance to the quenching oil, improve the convection and fluidity of the liquid, and at the same time, the ultrasonic generator 64 works to make the ultrasonic The wave transducer 65 works and generates ultrasonic waves (the ultrasonic generator 64 and the ultrasonic transducer are both mature existing technologies and will not be described in detail here). The ultrasonic waves act on the quenching rack 2 and the oil. On the one hand, by enhancing the diffusion effect of the inert gas, it can accelerate the discharge of oxygen in the oil, reduce the dissolved oxygen content of the oil, and further inhibit the oxidation reaction. On the other hand, the high-frequency vibration generated by the ultrasonic wave through the liquid will form a cavitation effect. The cavitation effect will cause the tiny bubbles in the quenching oil to burst quickly and detach from the surface of the workpiece, which can destroy the bubble barrier on the surface of the workpiece, enhance the heat exchange between the quenching oil and the workpiece, prevent uneven cooling, and improve the quenching quality.

[0036] Usage: Place the manganese steel casting on the quenching rack 2, and then control the quenching rack 2 to enter the oil in the quenching tank 11 for oil quenching. When the manganese steel casting and the quenching rack 2 enter the quenching tank 11, the liquid level inside the quenching tank 11 rises, and the oil can enter the liquid extraction port 12. The oil in the liquid extraction port 12 is pumped into the cavity 2 312 through the pump body 1 33. After the oil enters the cavity 2 312, it falls on the filter plate 37. The filter plate 37 filters the impurities and oxides in the oil to keep the oil clean. At the same time, the oil is pumped to the rotary joint 1 42 and the pump body 4 47 respectively through the pump body 3 44 and the pump body 4 And an antioxidant is pumped into the second rotary joint 46, and the antioxidant is discharged from the drain port 496 on the hollow tube body 1 491 and the hollow tube body 2 493 and reacts with the oil filtered by the filter plate 37 in the cavity 2 312 to inhibit the occurrence of oxidation reaction. When the quenching rack 2 enters the quenching tank 11, the driving component 52 drives the two baffles 51 to move relative to each other, so that the quenching rack 2 enters the avoidance groove 56 in the baffle 51, and the opening of the quenching tank 11 is closed by the two baffles 51 to prevent the quenching oil from contacting with the air, which can reduce the formation of oxidation products (such as oil residue) on the oil surface.

[0037] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A manganese steel casting quenching device for mining equipment, comprising a base body (1), a quenching tank (11) provided inside the base body (1), and a quenching frame (2) located inside the quenching tank (11), characterized in that: The inner side wall of the quenching tank (11) is provided with a plurality of liquid extraction ports (12), and the inner bottom wall of the quenching tank (11) is provided with a plurality of liquid inlet ports (13); The seat (1) is internally connected to a circulation purification unit (3), and the circulation purification unit (3) comprises a box (31) connected to the inside of the seat (1), a cover (32) fixedly connected to the upper end of the box (31), two cavities (311) and one cavity (312) opened in the box (31), two pump bodies (33) and two pump bodies (34) respectively fixedly connected to the inner walls of the two cavities (311), a fixed seat (39) and a filter plate (37) fixedly connected to the inner wall of the cavity (312), two pipes (35) connected to the liquid inlet (13), and two pipes (36) connected to the liquid outlet, and one side of the filter plate (37) is fixedly connected to one side of the fixed seat (39); The other ends of the two pipes one (35) pass through the cover body (32) into the cavity one (311) and are connected to the input end of the pump body one (33); the other ends of the two pipes two (36) pass through the box body (31) and are connected to the output end of the pump body two (34); the output ends of the two pump bodies one (33) and the input ends of the two pump bodies two (34) all pass through the cavity two (312).

2. The manganese steel casting quenching device for mining equipment according to claim 1, characterized in that: The second cavity (312) is internally connected to a material removal assembly (38), and the material removal assembly (38) comprises a screw rod (382) rotatably connected to the inner wall of the second cavity (312), a guide rod (384) fixedly connected to the inner wall of the second cavity (312), a movable plate (383) screwed to the outside of the screw rod (382) and movably sleeved on the outside of the guide rod (384), and a scraper (385) fixedly connected to one side of the movable plate (383), and the lower end of the scraper (385) is in contact with the upper end of the filter plate (37). A motor (381) is fixedly connected to the outer surface of one side of the box body (31), and the output shaft of the motor (381) passes through the box body (31) and is fixedly connected to one end of the screw rod (382).

3. The manganese steel casting quenching device for mining equipment according to claim 2, characterized in that: A discharge port (313) communicating with the second cavity (312) is provided inside the box body (31), and the discharge port (313) is provided above one end of the filter plate (37). A storage box (386) for collecting material discharged from the discharge port (313) is fixedly connected to an outer surface of one side of the box body (31), and the shape of the discharge port (313) is the same as that of the scraper (385).

4. The manganese steel casting quenching device for mining equipment according to claim 3 is characterized in that: The base (1) is further internally connected to an oxygen slowing unit (4), and the oxygen slowing unit (4) comprises a driving portion (41) connected to the upper and lower ends of the cover (32), a rotary joint (42) fixedly connected to the upper end of the cover (32), two rotary joints (46) and two pump bodies (47) fixedly connected to the lower end of the box (31), a storage tank (45) and a pump body (44) fixedly connected to the lower end of the box (31), and a pipeline connecting the input ends of the two pump bodies (47) and the output end of the storage tank (45). Four (48), a pipe three (43) connecting the output end of the pump body three (44) with the input end of the rotary joint one (42), the output ends of the two pump bodies four (47) are respectively connected to the input ends of the two rotary joints two (46), the input end of the pump body three (44) is connected to the output end of the storage tank (45), the inner tubes of the rotary joint one (42) and the two rotary joints two (46) are extended into the cavity two (312) and connected to the drainage assembly (49) inside the cavity two (312).

5. The manganese steel casting quenching device for mining equipment according to claim 4, characterized in that: The drainage assembly (49) comprises a hollow tube body 1 (491) whose two ends are rotatably connected to the lower end of the cover body (32) and the inner wall of the second cavity (312), two hollow tube bodies 2 (493) whose two ends are rotatably connected to the lower end of the filter plate (37) and the inner wall of the second cavity (312), and a plurality of drainage ports (496) provided on the outside of the hollow tube body 1 (491) and the hollow tube body 2 (493). The inner tube of the rotary joint 1 (42) is inserted into the interior of the hollow tube body 1 (491), and the inner tubes of the two rotary joints 2 (46) are respectively inserted into the interiors of the two hollow tube bodies 2 (493).

6. A manganese steel casting quenching device for mining equipment according to claim 5, characterized in that: The driving part (41) includes a second motor (411) fixedly connected to the upper end of the cover body (32), a gear (412) rotatably connected to the lower end of the cover body (32), and a gear (413) meshing with the gear (412), and the gear (413) is fixedly sleeved on the outside of the first hollow tube (491). The drainage component (49) also includes a sprocket wheel (492) and two sprocket wheels (494) rotatably connected to the inner wall of the second cavity (312), and a chain belt (495) connecting the sprocket wheel (492) and the two sprocket wheels (494), and the sprocket wheel (492) is fixedly sleeved on the outside of the first hollow tube (491), and the two sprocket wheels (494) are respectively fixedly sleeved on the outside of the two second hollow tubes (493).

7. A manganese steel casting quenching device for mining equipment according to claim 6, characterized in that: The upper end of the seat body (1) is also connected to an isolation unit (5), and the isolation unit (5) comprises two groups of slide grooves (53) symmetrically opened at the upper end of the seat body (1), two groups of slide bars (511) respectively slidably connected to the two groups of slide grooves (53), two baffles (51) respectively fixed to one side of the two groups of slide bars (511), tooth grooves (512) opened at the lower ends of the two baffles (51), a cavity three (55) opened inside the two baffles (51), a pipe interface (54) respectively opened on one side of the two baffles (51) and respectively connected to the cavity three (55) inside the two baffles (51), and a avoidance groove (56) opened on one side of the two baffles (51) and used to accommodate the quenching rack (2). The seat body (1) is also connected to two driving components (52) for respectively driving the two baffles (51) to move.

8. The manganese steel casting quenching device for mining equipment according to claim 7, characterized in that: The driving assembly (52) comprises a synchronous shaft 1 (522) and a synchronous shaft 2 (524) rotatably connected inside the seat body (1), two gears 3 (525) fixedly connected to the two ends of the synchronous shaft 2 (524), a synchronous belt (523) for transmission connection between the synchronous shaft 1 (522) and the synchronous shaft 2 (524), and a motor 3 (521) fixedly connected to the outer surface of one side of the seat body (1), wherein the output shaft of the motor 3 (521) penetrates into the interior of the seat body (1) and is fixedly connected to one end of the synchronous shaft 1 (522), and the gear 3 (525) is meshed with the tooth groove (512).

9. A manganese steel casting quenching device for mining equipment according to claim 8, characterized in that: The quenching tank (11) is also connected to a ventilation and oxygen-proof unit (6), and the ventilation and oxygen-proof unit (6) comprises a hollow pipe (61) fixedly connected to the inner wall of the quenching tank (11), and an exhaust port (62) provided on the outer surface of the hollow pipe (61). A pump body (63) is fixedly connected to the outer surface of one side of the seat body (1), and the output end of the pump body (63) is connected to the hollow pipe (61). A one-way valve is installed at the connection between the output end of the pump body (63) and the hollow pipe (61).

10. A manganese steel casting quenching device for mining equipment according to claim 9, characterized in that: An ultrasonic transducer (65) is fixedly connected to the lower end of the quenching rack (2), and an ultrasonic generator (64) connected to the ultrasonic transducer (65) is fixedly connected to the outer surface of one side of the quenching rack (2).

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