Steel heat treatment tempering device

Abstract

The invention discloses a steel heat treatment quenching and tempering device which realizes full-process automatic connection of special-shaped steel parts from furnace charging, heating, quenching to tempering through rail type butt joint of a heating furnace and a quenching bath, accurate lifting of a hydraulic driving material frame and intelligent switching of a driving unit. The procedures are seamlessly switched, so that the process period is remarkably shortened, manual intervention is reduced, and the operation risk is reduced while the production efficiency is improved; in the heating and quenching process, the charging tray drives the special-shaped part to continuously rotate, electric heating bars evenly distributed in the heating furnace are matched with forced convection stirring in the quenching pool, it is guaranteed that the temperature of all parts of the special-shaped part is evenly distributed, and the risk of thermal stress deformation is effectively reduced; the structure uniformity, the hardness consistency and the comprehensive mechanical property of the quenched and tempered special-shaped part are remarkably improved through a dynamic treatment mechanism; high-temperature waste gas drives the wind wheel to rotate through the gas guide assembly, temperature homogenization of the quenching liquid is achieved, a U-shaped pipe magnetic attraction and sedimentation dual impurity removal mechanism is achieved, and the service life of the liquid is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of steel heat treatment, in particular to a steel heat treatment quenching and tempering device. Background Art

[0002] In the field of high-end equipment manufacturing, special-shaped steel parts, such as gears, shafts, molds, and aerospace structural parts, have become core components of automotive transmission systems, precision machine tools, wind power equipment, and national defense equipment due to their complex geometries and high performance requirements. As the manufacturing industry transitions towards intelligent and green processes, the heat treatment process for special-shaped parts faces dual challenges: on the one hand, it must meet higher mechanical properties such as strength, toughness, wear resistance, and dimensional accuracy requirements; on the other hand, it must comply with industrial policies for energy conservation and emission reduction to reduce energy consumption and pollution during the production process.

[0003] As a key process for improving the overall performance of steel, quenching and tempering can achieve high strength and excellent toughness in special-shaped parts by forming a uniform tempered bainite structure. However, traditional quenching and tempering equipment is mostly designed for regular-shaped steel and has significant limitations when processing special-shaped parts:

[0004] 1. Static treatment leads to uneven structure: Due to the geometric asymmetry of special-shaped parts, temperature gradients are easily generated during static heating or quenching, resulting in local overburning, cooling rate differences or insufficient phase change, which in turn causes uneven structure, residual stress concentration and even cracking;

[0005] 2. Extensive treatment of waste gas and quenching liquid: High-temperature waste gas generated by heating is usually discharged directly, which not only wastes heat energy but also causes environmental pollution. Impurities accumulate in the quenching liquid after long-term use, requiring frequent replacement or outsourcing, increasing production costs.

[0006] 3. Insufficient automation and adaptability: Traditional processes rely on manual operation of furnace door opening and closing, workpiece transfer, and parameter monitoring, which is inefficient and poses safety risks. The equipment is not practical enough and cannot adapt to the production needs of high-variety, small-batch, special-shaped parts.

[0007] Although some companies have attempted to improve automation by modifying existing equipment or introducing industrial robots, they have yet to address the core issues of dynamic processing of special-shaped parts, waste gas and waste heat utilization, and quenching fluid recycling. Against this backdrop, we propose a tempering device that integrates dynamic processing, waste gas resource utilization, impurity separation, and full-process automated control to address these issues. Summary of the Invention

[0008] In view of the problems existing in the prior art, the present invention discloses a steel heat treatment and tempering device, which adopts the following technical scheme: it includes a base plate, an underground treatment chamber, a connecting assembly, a connecting assembly driving unit 1, a connecting assembly driving unit 2, an exhaust gas exhaust unit, a slag scraping unit, a circulation unit, a material rack, a hydraulic cylinder, a quenching pool, a treatment furnace assembly, a liquid inlet pipe, a second liquid discharge pipe and a cooling assembly; a treatment furnace assembly is movably provided at the left end of the upper surface of the base plate; the treatment furnace assembly includes a top plate, a heating furnace, a support column, a movable seat, a first reducer, a fourth motor, a track and an electric heating rod; a heating furnace is provided at the bottom center of the top plate; six equidistant circular arrays are provided on the middle of the inner four sides of the heating furnace. An electric heating rod, a furnace gate assembly is provided at the bottom of the heating furnace, an exhaust gas guide unit is provided below the furnace gate assembly, two groups of support columns are symmetrically provided at the front and rear ends of the bottom of the top plate, and a movable seat is provided at the bottom of each group of support columns, four movable wheels are equidistantly installed for rotation on the bottom inner side of the movable seat, and the movable wheels are slidably installed on rails symmetrically provided front and back on the upper surface of the base plate, the output shafts of the first reducer symmetrically provided at the middle part of the outer side of the movable seat are respectively fixedly connected to the wheel axle in the center of the movable wheel, the input shafts of the first reducer are respectively fixedly connected to the output shafts of the fourth motor provided on the top of the movable seat, and the fourth motors are respectively fixedly installed on the top of the movable seat;An underground processing chamber is provided at the bottom right end of the substrate, and a quenching pool is provided at the inner top center of the underground processing chamber. The quenching pool is a "cylindrical" structure, and a sealing seat is provided for the outer top sliding sleeve of the quenching pool. The four corners of the bottom of the sealing seat are respectively provided with electric telescopic rods, and the electric telescopic rods are respectively fixedly installed on the inner top of the underground processing chamber, and the telescopic ends of the electric telescopic rods respectively pass through the through holes provided on the substrate and are fixedly connected to the bottom of the sealing seat, and the annular sealing groove provided on the upper surface of the sealing seat is movably plugged into the annular plug block provided at the bottom of the heating furnace, and a material rack is provided at the inner center of the quenching pool, and six material shafts are rotatably provided in a circular array at equal distances around the material rack, and a material tray is symmetrically provided on the upper and lower middle parts of the material shafts, and through holes are respectively arranged in an array at the bottom of the material tray, and connecting components are respectively provided at the upper and lower ends of the material shaft, and the connecting components are respectively connected to the connecting component driving unit 2 provided at the bottom of the quenching pool and the connecting component driving unit 1 provided on the top of the heating furnace. The center of the bottom of the material rack is fixedly connected to the telescopic end of the hydraulic cylinder provided at the bottom of the quenching pool. The bottom of the fixed end of the hydraulic cylinder is fixedly connected to the inner bottom of the underground processing chamber. The top of the right end of the quenching pool is connected to the liquid inlet pipe provided at the top of the right side of the underground processing chamber. A second drain pipe is provided at the bottom of the left side of the quenching pool, and a third electric valve is provided at the other end of the second drain pipe. The bottom of the other end of the second drain pipe is connected to a diverter pipe. A U-shaped connecting pipe is arranged in an equidistant array at the bottom of the diverter pipe. Several magnet rings are provided at the middle of the outer side of the U-shaped connecting pipe. A scraping unit is provided above the top of the U-shaped connecting pipe. A slag discharge pipe is provided at the center of the bottom of the U-shaped connecting pipe, and a fourth electric valve is provided at the bottom of the slag discharge pipe. The other ends of the U-shaped connecting pipes are respectively connected to the cooling assembly provided at the left end of the inner bottom of the underground processing chamber. A circulation unit is provided at the right end of the cooling assembly, and the top of the circulation unit is connected to the middle of the liquid inlet pipe.

[0009] As an optimal technical solution of a steel heat treatment and tempering device of the present invention, the connecting assembly includes a fixed plate, a rectangular guide rod, a first compression spring, a main connecting disk and a conical tooth groove. The fixed plate is welded at the upper and lower ends of the material shaft, and a rectangular guide rod is provided at the center of the other side of the fixed plate. The main connecting disk is provided with a sliding sleeve on the outer side of the rectangular guide rod. A first compression spring is provided between the main connecting disk and the fixed plate, and the upper and lower ends of the first compression spring are fixedly connected to the fixed plate and the main connecting disk, respectively. The other end surface of the main connecting disk is provided with a conical tooth groove in an equidistant circular array.

[0010] As an optimal technical solution of a steel heat treatment and tempering device of the present invention, the connecting component driving unit 1 includes a first motor, a toothed disc, a first gear, a first connecting shaft and a first auxiliary connecting disc. The first auxiliary connecting discs are respectively arranged on the inner top of the heating furnace, and the first auxiliary connecting discs are respectively located directly above the connecting components. The conical teeth arranged in an equidistant circular array on the bottom of the first auxiliary connecting disc are respectively movably plugged into the conical tooth grooves. The top center of the first auxiliary connecting disc is respectively fixedly connected to the first connecting shaft rotatably installed in the middle of the top plate. The top end of the first connecting shaft is respectively welded with a first gear. The first motor is fixedly installed on the top center of the top plate. The output shaft end of the first motor is fixedly installed with a toothed disc, and the teeth arranged on the outer side of the toothed disc are respectively engaged with the teeth on the first gear.

[0011] As an optimal technical solution of a steel heat treatment and tempering device of the present invention, the second connecting component driving unit includes a second motor, a second gear, a driven gear ring, a third gear, a second sub-connecting disk and a second connecting shaft. The second sub-connecting disks are respectively arranged at the inner bottom of the quenching pool, and the second sub-connecting disks are respectively located directly below the connecting components. The bottom centers of the second sub-connecting disks are respectively fixedly connected to the second connecting shafts rotatably installed at the bottom of the quenching pool. The conical teeth arranged in an equidistant circumferential array on the top of the second sub-connecting disks are respectively movably plugged into the conical tooth grooves. The bottom of the second connecting shaft passes through the quenching pool and is fixedly connected to the third gear. The teeth on the third gear are respectively engaged with the teeth on the inner side of the driven gear ring rotatably installed at the bottom of the quenching pool. The second motor is fixedly installed at the right bottom of the quenching pool, and the output shaft of the second motor is fixedly installed with a second gear. The teeth on the second gear are engaged with the teeth on the outer side of the driven gear ring.

[0012] As a preferred technical solution of a steel heat treatment and tempering device of the present invention, the furnace gate assembly includes a support plate, a gate plate, an arc groove, a fifth motor, a second reducer, a T-shaped slide groove, a T-shaped slider, a second compression spring, a slide rod and a bidirectional threaded rod. The support plate is arranged at the bottom of the heating furnace and the support column, and the gate plates are slidably installed in the rectangular grooves arranged in the middle of the front and rear ends of the support plate, and the screw holes arranged at the left and right ends of the gate plate are respectively threadedly connected with the bidirectional threaded rods rotatably installed at the left and right ends inside the rectangular groove, the front and rear ends of the bidirectional threaded rod are arranged with opposite thread directions, the rear ends of the bidirectional threaded rod are respectively provided with a second reducer, and the second reducer The speed reducer is fixedly mounted on the rear side of the support plate, the output shaft of the second speed reducer is fixedly connected to the rear end of the bidirectional threaded rod, and the input shaft of the second speed reducer is fixedly connected to the output shaft of the fifth motor fixedly mounted on the support plate; arc grooves are respectively provided on the upper and lower sides of the middle part of the opposite end of the gate plate, and T-shaped slide grooves are respectively provided in the middle of the gate plate, and T-shaped sliders are respectively slidably mounted inside the T-shaped slide grooves, and the sliding holes provided at the left and right ends of the T-shaped slide grooves are respectively slidably mounted on the slide rods provided inside the T-shaped slide grooves, and second compression springs are respectively provided between the T-shaped slide block and the T-shaped slide groove, and the second compression springs are respectively set on the outside of the slide rods.

[0013] As an optimal technical solution of a steel heat treatment and tempering device of the present invention, the exhaust gas exhaust unit includes an air pump, an exhaust pipe, an arc pipe, a connecting pipe, an exhaust pipe and an air guide assembly. There are two arc pipes, and the arc pipes are symmetrically arranged at the outer bottom of the heating furnace, and the arc pipes are respectively located below the support plates. The arc pipe is provided with a plurality of connecting pipes at equal distances relative to one end of the heating furnace, and the other ends of the connecting pipes are respectively connected to the interior of the heating furnace. The right ends of the arc pipes are respectively connected with exhaust pipes, and the other ends of the exhaust pipes are respectively fixedly connected to the exhaust ends of the air pumps fixedly installed on the top of the support plate, and the exhaust ends of the air pumps are respectively fixedly installed with exhaust pipes, and the outer sides of the other ends of the exhaust pipes are respectively provided with rubber sleeves, and the ends of the exhaust pipes are respectively movably connected to the air guide assemblies arranged at the right end of the top of the underground treatment chamber.

[0014] As an optimal technical solution of a steel heat treatment and tempering device of the present invention, the air guide assembly includes an air guide pipe, a waste pipe, an air bin, a wind wheel, a rotating shaft and a stirring paddle. There are two air guide pipes, which are symmetrically arranged at the top of the right end of the underground treatment chamber. The end of the air guide pipe connected to the exhaust pipe is in a "trumpet" shape, and the other end of the air guide pipe is respectively connected to the air bins arranged at the bottom of the front and rear sides of the quenching pool. The other end of the air bin is respectively provided with a waste pipe, and the waste pipe and the air guide pipe are respectively arranged along the tangent direction of the air bin. The other end of the waste pipe is respectively located at the front and rear ends of the outer side of the underground treatment chamber, and the wind wheel is respectively provided at the inner middle of the air bin, and the wind wheel is respectively fixedly installed on the rotating shafts rotatably installed at the bottom of the front and rear sides of the quenching pool. The other end of the rotating shaft is respectively fixedly installed with stirring paddles, and the stirring paddles are respectively located at the inner bottom of the quenching pool.

[0015] As an optimal technical solution of a steel heat treatment and tempering device of the present invention, the scraping unit includes a third motor, a movable frame, a threaded rod, a slide rail and a piston rod, the piston rods are respectively arranged at the top of the U-shaped connecting tube, the pistons arranged at the bottom of the piston rods are respectively slidably installed on the inner side of the U-shaped connecting tube, and the tops of adjacent piston rods are respectively fixedly installed with movable frames, and a third motor is respectively arranged above the movable frame, and the third motor is respectively fixedly installed at the bottom of the base plate, the output shaft of the third motor is fixedly connected to the top of the threaded rod threadedly installed in the middle of the movable frame, and the bottom of the threaded rod is respectively rotatably installed on the extension plate arranged at the top left of the underground processing chamber, and the guide grooves arranged on the rear side of the movable frame are respectively slidably connected to the slide rails arranged at the top left of the underground processing chamber.

[0016] As an optimal technical solution of a steel heat treatment and tempering device of the present invention, the cooling assembly includes a cooling pool, a cooling pipe group, a third connecting shaft, a stirring fan and a power fan. The cooling pool is arranged at the inner left end of the underground treatment chamber, and the cooling pipe group is fixedly installed in the middle of the cooling pool, and the liquid inlet end and the liquid discharge end of the cooling pipe group are respectively located on the outer front side of the underground treatment chamber. The third connecting shaft is respectively installed vertically at the front and rear ends of the interior of the cooling pool, and the power fan is respectively fixedly installed on the top of the third connecting shaft, and the stirring fan is respectively fixedly installed on the bottom of the third connecting shaft.

[0017] As a preferred technical solution of a steel heat treatment and tempering device of the present invention, the circulation unit includes a water pump, a liquid suction pipe, a first liquid discharge pipe, a branch pipe, a return pipe 1, a liquid temperature sensor, a return pipe 2, a first electric valve and a second electric valve. Two water pumps are provided, and the water pumps are respectively arranged at the front and rear ends of the inner bottom of the underground treatment chamber. The liquid suction ends of the water pumps are respectively provided with liquid suction pipes, and the other ends of the liquid suction pipes are respectively connected to the right bottom of the cooling pool. The liquid discharge ends of the water pumps are respectively provided with first liquid discharge pipes, and the other ends of the first liquid discharge pipes are connected to branch pipes. The middle part of the branch pipes is provided with a return pipe 1 connected to the middle part of the liquid inlet pipe, the top of the return pipe 1 is provided with a second electric valve, the bottom of the return pipe 1 is provided with a liquid temperature sensor, the middle part of the branch pipes is symmetrically provided with return pipes 2, the bottom of the return pipe 2 is respectively provided with first electric valves, the other ends of the return pipes 2 are respectively connected to the right top of the cooling pool, and the return pipes 2 are respectively arranged along the tangential direction of the power fan.

[0018] As a preferred technical solution of a steel heat treatment and tempering device of the present invention, it also includes a controller, which is arranged at the right front end of the support plate, and is electrically connected to the first motor, the second motor, the air pump, the third motor, the water pump, the liquid temperature sensor, the first electric valve, the second electric valve, the hydraulic cylinder, the fourth motor, the electric heating rod, the fifth motor, the third electric valve, the fourth electric valve and the electric telescopic rod respectively.

[0019] Beneficial effects of the present invention: The present invention realizes the full-process automation connection of steel special-shaped parts from loading, heating, quenching to tempering through the rail-type docking of the heating furnace and the quenching pool, the precise lifting of the hydraulically driven material rack and the intelligent switching of the drive unit; seamless switching between various processes significantly shortens the process cycle, reduces manual intervention, improves production efficiency and reduces operational risks; during the heating and quenching process, the material tray drives the special-shaped parts to rotate continuously, and cooperates with the evenly distributed electric heating rods in the heating furnace and the forced convection stirring in the quenching pool to ensure that the temperature of each part of the special-shaped parts is evenly distributed, effectively Reduce the risk of thermal stress deformation; the dynamic processing mechanism significantly improves the uniformity of the structure, consistency of hardness and comprehensive mechanical properties of the special-shaped parts after quenching and tempering; the high-temperature exhaust gas drives the wind wheel to rotate through the air guide component, which not only achieves the uniformity of the quenching liquid temperature, but also can recover the waste heat of the exhaust gas through an external device; the U-shaped tube magnetic attraction and sedimentation dual impurity removal mechanism effectively separates the magnetic and non-magnetic particles in the quenching liquid, extending the service life of the liquid; the cooling pool reduces the temperature through heat exchange between external low-temperature water and the quenching liquid, and uses the tangential impact of the reflux pipe to drive the stirring paddle, reducing additional energy consumption and realizing closed-loop resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall combined structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the combined cross-sectional structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the partially enlarged structure of point A of the present invention;

[0024] Figure 5 It is a schematic diagram of a partially enlarged structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the partially enlarged structure of position B of the present invention;

[0026] Figure 7 This is a schematic structural diagram of the treatment furnace assembly of the present invention;

[0027] Figure 8 Schematic diagram of the cross-sectional structure of the treatment furnace assembly of the present invention;

[0028] Figure 9 This is a structural diagram of the furnace gate assembly of the present invention;

[0029] Figure 10 This is a schematic diagram of the sealing seat structure of the present invention;

[0030] Figure 11 This is a schematic structural diagram of the quenching mechanism of the present invention;

[0031] Figure 12 This is a bottom view of the quenching mechanism of the present invention;

[0032] Figure 13 The partial cross-sectional structure of the quenching mechanism of the present invention is shown in FIG. Figure 1 ;

[0033] Figure 14 The partial cross-sectional structure of the quenching mechanism of the present invention is shown in FIG. Figure 2 ;

[0034] Figure 15 The partial cross-sectional structure of the quenching mechanism of the present invention is shown in FIG. Figure 3 .

[0035] In the figure: 1. Base plate; 2. Underground processing chamber; 3. Controller; 4. Connecting assembly; 41. Fixing plate; 42. Rectangular guide rod; 43. First compression spring; 44. Main connecting plate; 45. Conical tooth groove; 5. Connecting assembly drive unit 1; 51. First motor; 52. Tooth plate; 53. First gear; 54. First connecting shaft; 55. First auxiliary connecting plate; 6. Connecting assembly drive unit 2; 61. Second motor; 62. Second gear; 63. Driven gear ring; 64. Third gear; 65. Second auxiliary connecting plate; 66. Second connecting shaft; 7. Exhaust gas guide Unit; 71. Air pump; 72. Air extraction pipe; 73. Curved pipe; 74. Connecting pipe; 75. Exhaust pipe; 76. Air guide assembly; 761. Air guide pipe; 762. Waste discharge pipe; 763. Air chamber; 764. Wind wheel; 765. Rotating shaft; 766. Agitator; 8. Scraping unit; 81. Third motor; 82. Moving frame; 83. Threaded rod; 84. Slide rail; 85. Piston rod; 9. Circulation unit; 91. Water pump; 92. Liquid extraction pipe; 93. First liquid discharge pipe; 94. Discharge pipe; 95. Reflux pipe 1; 96. Liquid temperature sensor; 97. Reflux Pipe 2; 98, first electric valve; 99, second electric valve; 10, material rack; 11, material shaft; 12, material tray; 13, hydraulic cylinder; 14, quenching pool; 15, treatment furnace assembly; 151, top plate; 152, heating furnace; 153, support column; 154, moving seat; 155, first reducer; 156, fourth motor; 157, track; 158, electric heating rod; 159, moving wheel; 16, furnace gate assembly; 161, support plate; 162, gate; 163, arc groove; 164, fifth motor; 165, second reducer; 166, T shaped slide; 167, T-shaped slider; 168, second compression spring; 169, slide rod; 1610, bidirectional threaded rod; 17, liquid inlet pipe; 18, second liquid discharge pipe; 19, third electric valve; 20, diverter pipe; 21, U-shaped connecting pipe; 22, magnet ring; 23, slag discharge pipe; 24, fourth electric valve; 25, cooling assembly; 251, cooling tank; 252, cooling pipe group; 253, third connecting shaft; 254, stirring fan; 255, power fan; 26, sealing seat; 27, electric telescopic rod; 28, annular sealing groove; 29, annular plug. DETAILED DESCRIPTION

[0036] Example 1

[0037] like Figures 1 to 15As shown, the present invention discloses a steel heat treatment and tempering device, which adopts the technical solution of comprising a base plate 1, an underground treatment chamber 2, a connecting assembly 4, a connecting assembly driving unit 1 5, a connecting assembly driving unit 2 6, an exhaust gas guide unit 7, a scraping unit 8, a circulation unit 9, a material rack 10, a hydraulic cylinder 13, a quenching pool 14, a treatment furnace assembly 15, a liquid inlet pipe 17, a second liquid discharge pipe 18 and a cooling assembly 25. The treatment furnace assembly 15 is movable at the left end of the upper surface of the base plate 1. The treatment furnace assembly 15 comprises a top plate 151, a heating furnace 152, a support column 153, a movable seat 154, a first reducer 155, a fourth motor 156, a track 157 and an electric heating rod 158. The bottom center of the top plate 151 is provided with a heating furnace 152. The heating furnace 1 Six electric heating rods 158 are arranged in an equidistant circular array in the middle of the inner side of 52, and a furnace gate assembly 16 is arranged at the bottom of the heating furnace 152. The furnace gate assembly 16 includes a support plate 161, a gate plate 162, an arc groove 163, a fifth motor 164, a second reducer 165, a T-shaped slide groove 166, a T-shaped slider 167, a second compression spring 168, a slide rod 169 and a bidirectional threaded rod 1610. The support plate 161 is arranged at the bottom of the heating furnace 152 and the support column 153. The gate plates 162 are slidably installed in the rectangular grooves arranged in the middle of the front and rear ends of the support plate 161. The screw holes arranged at the left and right ends of the gate plate 162 are respectively threadedly connected with the bidirectional threaded rods 1610 rotatably installed at the left and right ends of the rectangular groove. The front and rear ends of the bidirectional threaded rod 1610 The thread directions are set to be opposite, and the rear end of the bidirectional threaded rod 1610 is respectively provided with a second reducer 165, and the second reducer 165 is fixedly mounted on the rear side of the support plate 161, and the output shaft of the second reducer 165 is fixedly connected to the rear end of the bidirectional threaded rod 1610, and the input shaft of the second reducer 165 is fixedly connected to the output shaft of the fifth motor 164 fixedly mounted on the support plate 161; arc grooves 163 are respectively provided on the upper and lower sides of the middle part of the opposite end of the gate plate 162, and T-shaped slide grooves 166 are respectively provided in the middle of the gate plate 162, and T-shaped sliders 167 are respectively slidably mounted on the interior of the T-shaped slide grooves 166, and the sliding holes provided at the left and right ends of the T-shaped slider 167 are respectively slidably mounted on the slide rods 169 provided inside the T-shaped slide grooves 166. A second compression spring 168 is provided between the slider 167 and the T-shaped slide 166, and the second compression spring 168 is respectively set on the outside of the slide rod 169. Before heating the steel, by starting the fifth motor 164, the fifth motor 164 drives the bidirectional threaded rod 1610 to rotate through the second reducer 165, so that the gate 162 moves along the rectangular groove in the middle of the support plate 161 toward the telescopic rod of the hydraulic cylinder 13 that extends outward. Since the gate 162 is provided with arc grooves 163 on the upper and lower sides of the middle of the opposite end of the gate 162, the gate 162 can be better fitted with the telescopic rod of the hydraulic cylinder 13. During the fitting process, the T-shaped slider 167 is squeezed and moves along the slide rod 169 to the inside of the T-shaped slide 166, and squeezes the second compression spring 168.To form a secondary seal, an exhaust gas guide unit 7 is provided below the furnace gate assembly 16. The exhaust gas guide unit 7 includes an air pump 71, an exhaust pipe 72, an arc pipe 73, a connecting pipe 74, an exhaust pipe 75 and an air guide assembly 76. There are two arc pipes 73, which are symmetrically arranged at the outer bottom of the heating furnace 152, and the arc pipes 73 are respectively located below the support plate 161. A plurality of connecting pipes 74 are equidistantly provided at one end of the arc pipe 73 relative to the heating furnace 152. The other ends of the connecting pipes 74 are respectively connected to the interior of the heating furnace 152. The right ends of the arc pipes 73 are respectively connected to the exhaust pipes 72. The other ends of the exhaust pipes 72 are respectively fixedly connected to the exhaust ends of the air pump 71 fixedly installed on the top of the support plate 161. , the exhaust end of the air pump 71 is fixedly installed with an exhaust pipe 75, and the other end of the exhaust pipe 75 is respectively provided with a rubber sleeve, and the end of the exhaust pipe 75 is respectively connected to the air guide component 76 provided at the right end of the top of the underground treatment chamber 2. The air guide component 76 includes an air guide pipe 761, a waste pipe 762, an air bin 763, a wind wheel 764, a rotating shaft 765 and a stirring paddle 766. There are two air guide pipes 761, which are symmetrically arranged at the top of the right end of the underground treatment chamber 2. The end of the air guide pipe 761 connected to the exhaust pipe 75 is in the shape of a "trumpet", and the other end of the air guide pipe 761 is respectively connected to the air bin 763 provided at the bottom of the front and rear sides of the quenching pool 14, and the other end of the air bin 763 is respectively provided with a waste Tube 762, and the waste pipe 762 and the air guide pipe 761 are respectively arranged along the tangent direction of the gas bin 763, the other end of the waste pipe 762 is respectively located at the front and rear ends of the outer side of the underground processing chamber 2, and the inner middle of the gas bin 763 is respectively provided with a wind wheel 764, and the wind wheel 764 is respectively fixedly mounted on the rotating shaft 765 rotatably mounted on the bottom of the front and rear sides of the quenching pool 14, and the other end of the rotating shaft 765 is respectively fixedly mounted with a stirring paddle 766, and the stirring paddle 766 is respectively located at the inner bottom of the quenching pool 14. When the material rack 10 enters the quenching pool 14, the furnace gate assembly 16 is then closed, and the air pump 71 is turned on. When the material rack 10 is immersed in the quenching liquid in the quenching pool 14, the air pump 71 is sucked and moved to the heating furnace 152 through the arc pipe 73 and the connecting pipe 74. The high-temperature exhaust gas in the quenching liquid is then introduced into the air guide pipe 761 through the exhaust pipe 75. The exhaust gas introduced into the air chamber 763 by the air guide pipe 761 is ejected at high speed in the tangential direction, driving the wind wheel 764 to rotate, and the stirring paddle 766 is driven by the rotating shaft 765 to stir the quenching liquid to promote the uniformity of the quenching liquid temperature. The exhaust gas is finally discharged through the exhaust pipe 762, and the exhaust pipe 762 can be connected to an external exhaust gas treatment device to avoid environmental pollution. Two groups of support columns 153 are symmetrically provided at the front and rear ends of the bottom of the top plate 151, and a movable seat 154 is provided at the bottom of each group of support columns 153. Four movable wheels 159 are equidistantly installed on the bottom of the inner side of the movable seat 154. The movable wheels 159 are respectively slidably installed on the tracks 157 symmetrically provided on the front and rear surfaces of the upper surface of the base plate 1.The output shafts of the first reducer 155 symmetrically arranged in the middle of the outer side of the moving seat 154 are respectively fixedly connected to the axle in the center of the moving wheel 159, and the input shafts of the first reducer 155 are respectively fixedly connected to the output shafts of the fourth motor 156 arranged on the top of the moving seat 154, and the fourth motors 156 are respectively fixedly installed on the top of the moving seat 154; an underground processing chamber 2 is provided at the bottom right end of the substrate 1, and a quenching pool 14 is provided at the center of the inner top of the underground processing chamber 2. The quenching pool 14 is a "cylindrical" structure, and a sealing seat 26 is provided on the outer top sliding sleeve of the quenching pool 14. The four corners of the bottom of the sealing seat 26 are respectively provided with electric telescopic rods 27, and the electric telescopic rods 27 are respectively fixedly installed on the inner top of the underground processing chamber 2. The telescopic ends of the telescopic rod 27 pass through the through holes provided on the base plate 1 and are fixedly connected to the bottom of the sealing seat 26. The annular sealing groove 28 provided on the upper surface of the sealing seat 26 is movably plugged into the annular plug 29 provided at the bottom of the heating furnace 152. A material rack 10 is provided at the inner center of the quenching pool 14. Six material shafts 11 are rotatably provided in a circular array at equal distances around the material rack 10, and a material tray 12 is symmetrically provided on the upper and lower parts of the middle of the material shaft 11. The bottom of the material tray 12 is respectively provided with through holes in an array. The upper and lower ends of the material shaft 11 are respectively provided with connecting components 4. The connecting component 4 includes a fixed plate 41, a rectangular guide rod 42, a first compression spring 43, a main connecting plate 44 and a conical tooth groove 45. The fixed plates 41 are respectively welded and provided at the upper and lower ends of the material shaft 11, and are fixed. A rectangular guide rod 42 is provided at the center of the other side of the plate 41, and a main connecting disk 44 is provided on the outer side of the rectangular guide rod 42 with a sliding sleeve. A first compression spring 43 is provided between the main connecting disk 44 and the fixed plate 41, and the upper and lower ends of the first compression spring 43 are fixedly connected to the fixed plate 41 and the main connecting disk 44 respectively. The other end surface of the main connecting disk 44 is respectively provided with a conical tooth groove 45 in an equidistant circumferential array, and the connecting component 4 is respectively driven and connected to the connecting component drive unit 2 6 provided at the bottom of the quenching pool 14 and the connecting component drive unit 1 5 provided at the top of the heating furnace 152. The connecting component drive unit 1 5 includes a first motor 51, a toothed disk 52, a first gear 53, a first connecting shaft 54 ​​and a first auxiliary connecting disk 55. A pair of connecting discs 55 are respectively arranged on the inner top of the heating furnace 152, and the first pair of connecting discs 55 are respectively located directly above the connecting assembly 4. The conical teeth arranged in an equidistant circumferential array at the bottom of the first pair of connecting discs 55 are respectively movably plugged into the conical tooth grooves 45. The top center of the first pair of connecting discs 55 is respectively fixedly connected to the first connecting shaft 54 ​​rotatably installed in the middle of the top plate 151. The top of the first connecting shaft 54 ​​is respectively welded with a first gear 53. The first motor 51 is fixedly installed at the top center of the top plate 151. The output shaft end of the first motor 51 is fixedly installed with a gear disc 52, and the teeth arranged on the outer side of the gear disc 52 are respectively engaged with the teeth on the first gear 53. The hydraulic cylinder 13 extends to move the material rack 10 into the heating furnace 152.Until the connecting component 4 at the top of the material shaft 11 is pressed against the bottom of the first secondary connecting disk 55, at this time, the fixed plate 41 guides the main connecting disk 44 to slide axially through the rectangular guide rod 42, and the first compression spring 43 is compressed to provide axial preload force for the main connecting disk 44. When the conical tooth groove 45 of the main connecting disk 44 contacts the conical teeth at the bottom of the first secondary connecting disk 55, the inclined surface design of the conical tooth groove 45 guides the two to automatically align, and finally achieves rigid meshing through the spring pressure, completing the connection between the connecting component 4 and the connecting component drive unit 1 5. By starting the first motor 51, the toothed disk 52 drives the first gear 53 to rotate, and the first gear 53 drives the first secondary connecting disk 55 to rotate through the first connecting shaft 54, and then drives the material shaft 11 and the material disk 1 through the connecting component 4. 2 synchronous rotation to achieve uniform heating of the steel, the connecting component driving unit 2 6 includes a second motor 61, a second gear 62, a driven gear ring 63, a third gear 64, a second sub-connecting disc 65 and a second connecting shaft 66, the second sub-connecting discs 65 are respectively arranged at the inner bottom of the quenching pool 14, and the second sub-connecting discs 65 are respectively located directly below the connecting component 4, the bottom center of the second sub-connecting disc 65 is respectively fixedly connected to the second connecting shaft 66 rotatably installed at the bottom of the quenching pool 14, the conical teeth arranged in an equidistant circumferential array on the top of the second sub-connecting disc 65 are respectively movably plugged into the conical tooth grooves 45, the bottom of the second connecting shaft 66 passes through the quenching pool 14 and is fixedly connected to the third gear 64, and the teeth on the third gear 64 are respectively rotatably installed at the bottom of the quenching pool 14 The teeth on the inner side of the driven gear ring 63 are meshed with each other, and a second motor 61 is fixedly installed on the right bottom of the quenching pool 14. The output shaft of the second motor 61 is fixedly installed with a second gear 62. The teeth on the second gear 62 are meshed with the teeth on the outer side of the driven gear ring 63. By starting the second motor 61, the second motor 61 drives the driven gear ring 63 to rotate through the second gear 62. The driven gear ring 63 drives the second auxiliary connecting disk 65 to rotate synchronously through the third gear 64 and the second connecting shaft 66. Because the hydraulic cylinder 13 drives the material rack 10 to retract to the bottom of the quenching pool 14, the main connecting disk 44 at the bottom of the material shaft 11 is meshed with the conical teeth on the top of the second auxiliary connecting disk 65 under the pressure of the spring, completing the connection between the connecting component 4 and the connecting component drive unit 2 6. The dynamic material shaft 11 and the material tray 12 rotate to keep the steel dynamically cooled in the quenching liquid, reducing the risk of deformation caused by thermal stress. The bottom center of the material rack 10 is fixedly connected to the telescopic end of the hydraulic cylinder 13 provided at the bottom of the quenching pool 14. The bottom of the fixed end of the hydraulic cylinder 13 is fixedly connected to the inner bottom of the underground processing chamber 2. The top of the right end of the quenching pool 14 is connected to the liquid inlet pipe 17 provided at the top of the right side of the underground processing chamber 2. A second drain pipe 18 is provided at the bottom of the left side of the quenching pool 14, and a third electric valve 19 is provided at the other end of the second drain pipe 18. The bottom of the other end of the second drain pipe 18 is connected to a shunt pipe 20. A U-shaped connecting pipe 21 is arranged in an equidistant array at the bottom of the shunt pipe 20. A number of magnet rings 22 are provided in the middle of the outer side of the U-shaped connecting pipe 21.A scraping unit 8 is provided above the top of the U-shaped connecting tube 21. The scraping unit 8 includes a third motor 81, a movable frame 82, a threaded rod 83, a slide rail 84 and a piston rod 85. The piston rods 85 are respectively provided on the top of the U-shaped connecting tube 21. The pistons provided at the bottom of the piston rods 85 are respectively slidably installed on the inner side of the U-shaped connecting tube 21, and the tops of the adjacent piston rods 85 are respectively fixedly installed with movable frames 82. The tops of the movable frames 82 are respectively provided with third motors 81. The third motors 81 are respectively fixedly installed on the bottom of the substrate 1. The output shaft of the third motor 81 is fixedly connected to the top of the threaded rod 83 threadedly installed in the middle of the movable frame 82. The bottoms of the threaded rod 83 are respectively rotatably installed on the extension plate provided on the top left side of the underground processing chamber 2. The guide grooves arranged on the rear side of 82 are respectively slidably connected to the slide rails 84 arranged on the top left side of the underground processing chamber 2. A slag discharge pipe 23 is provided at the bottom center of the U-shaped connecting pipe 21, and a fourth electric valve 24 is provided at the bottom of the slag discharge pipe 23. During the quenching process, the liquid inlet pipe 17 is connected to the external quenching liquid pipeline, and new quenching liquid can be continuously added to the quenching pool 14. At the same time, by opening the third electric valve 19 and controlling the flow rate of the discharged quenching liquid through the third electric valve 19, the second liquid discharge pipe 18 discharges the high-temperature quenching liquid to the diversion pipe 20, and after diversion, it flows into the U-shaped connecting pipe 21 respectively. The magnet ring 22 on the outside of the U-shaped connecting pipe 21 absorbs magnetic impurities in the quenching liquid, and the non-magnetic particles settle to the bottom of the U-shaped connecting pipe 21 due to gravity; when it needs to be cleaned When impurity particles in the U-shaped connecting pipe 21 are removed, the third electric valve 19 is closed, the third motor 81 is started, the threaded rod 83 is driven to rotate, and the movable frame 82 is driven to move down along the slide rail 84. The piston rod 85 pushes the piston to scrape the impurities on the inner wall of the U-shaped connecting pipe 21, and the waste liquid is discharged through the slag discharge pipe 23 and the fourth electric valve 24. The other end of the U-shaped connecting pipe 21 is respectively connected to the cooling assembly 25 arranged at the left end of the bottom inner side of the underground treatment chamber 2. The cooling assembly 25 includes a cooling pool 251, a cooling pipe group 252, a third connecting shaft 253, a stirring fan 254 and a power fan 255. The cooling pool 251 is arranged at the inner left end of the underground treatment chamber 2. The cooling pipe group 252 is fixedly installed in the middle of the cooling pool 251, and the liquid inlet end and the discharge end of the cooling pipe group 252 are connected. The ends are respectively located at the external front side of the underground treatment chamber 2, and the third connecting shaft 253 is respectively installed vertically at the front and rear ends of the interior of the cooling pool 251. The top of the third connecting shaft 253 is respectively fixedly installed with a power fan 255, and the bottom of the third connecting shaft 253 is respectively fixedly installed with a stirring fan 254. The right end of the cooling component 25 is provided with a circulation unit 9, and the top of the circulation unit 9 is connected with the middle part of the liquid inlet pipe 17. The circulation unit 9 includes a water pump 91, a liquid suction pipe 92, a first liquid discharge pipe 93, a branch pipe 94, a return pipe 1 95, a liquid temperature sensor 96, a return pipe 2 97, a first electric valve 98 and a second electric valve 99. There are two water pumps 91, and the water pumps 91 are respectively arranged at the front and rear ends of the inner bottom of the underground treatment chamber 2.The liquid pumping end of the water pump 91 is respectively provided with a liquid pumping pipe 92, and the other end of the liquid pumping pipe 92 is respectively connected to the right bottom of the cooling pool 251, and the liquid discharge end of the water pump 91 is respectively provided with a first liquid discharge pipe 93, and the other end of the first liquid discharge pipe 93 is connected to a branch pipe 94, and the middle of the branch pipe 94 is provided with a return pipe 95 connected to the middle of the liquid inlet pipe 17, and the top of the return pipe 95 is provided with a second electric valve 99, and the bottom of the return pipe 95 is provided with a liquid temperature sensor 96. The middle part is provided with a symmetrical back-and-forth return pipe 97. The bottom of the back-and-forth return pipe 97 is provided with a first electric valve 98. The other end of the back-and-forth return pipe 97 is connected to the top of the right side of the cooling pool 251. The back-and-forth return pipe 97 is provided along the tangent direction of the power fan 255. By starting the water pump 91, the water pump 91 extracts the cooled quenching liquid in the cooling pool 251 through the liquid extraction pipe 92 and delivers it to the liquid inlet pipe 17 through the first liquid discharge pipe 93, the branch pipe 94 and the back-and-forth return pipe 1 95. When the liquid temperature is When the temperature detected by sensor 96 exceeds a set value, second electric valve 99 is closed, and first electric valve 98 is then opened, allowing the quenching liquid to be re-injected into cooling pool 251 through return pipe 2 97 . Since return pipe 2 97 drains liquid tangentially along power fan 255 , power fan 255 is driven to rotate, driving stirring fan 254 to stir the quenching liquid, thereby further uniformizing the temperature of the quenching liquid. The system also includes a controller 3 , which is disposed at the right front end of support plate 161 . Controller 3 is electrically connected to first motor 51 , second motor 61 , air pump 71 , third motor 81 , water pump 91 , liquid temperature sensor 96 , first electric valve 98 , second electric valve 99 , hydraulic cylinder 13 , fourth motor 156 , electric heating rod 158 , fifth motor 164 , third electric valve 19 , fourth electric valve 24 , and electric telescopic rod 27 . After quenching is completed, the steel is reintroduced into heating furnace 152 , and the heating temperature and heating time of electric heating rod 158 are controlled according to the tempering process parameters to eliminate quenching stress.

[0038] The working principle of the present invention is as follows: first, the steel materials to be processed are placed on the material trays 12 of the material rack 10 respectively to ensure that the steel materials are evenly distributed. After the placement is completed, the hydraulic cylinder 13 is retracted by the controller 3 to move the material rack 10 into the quenching pool 14. Then, the fourth motor 156 is started to drive the moving wheel 159 to move along the track 157 through the first reducer 155, so that the moving seat 154 drives the top plate 151 and the heating furnace 152 through the support column 153, and moves the heating furnace 152 to the top of the quenching pool 14. At the same time, the exhaust pipe 75 is inserted into the top of the air guide pipe 761 to form a "horn" shape. "-shaped socket; secondly, control the electric telescopic rod 27 to extend, push the sealing seat 26 to move upward, so that the annular sealing groove 28 is tightly plugged into the annular plug 29 at the bottom of the heating furnace 152, and the sealing connection between the heating furnace 152 and the quenching pool 14 is achieved. At the same time, start the hydraulic cylinder 13 to extend, so that the material rack 10 moves into the heating furnace 152 until the connecting assembly 4 at the top of the material shaft 11 is pressed against the bottom of the first auxiliary connecting disk 55. At this time, the fixing plate 41 guides the main connecting disk 44 to slide axially through the rectangular guide rod 42, and the first compression spring 43 is compressed to provide axial pre-tightening force to the main connecting disk 44. When the conical tooth grooves 45 of the disk 44 come into contact with the conical teeth at the bottom of the first sub-connecting disk 55, the inclined surface design of the conical tooth grooves 45 guides the two to automatically align, and finally achieves rigid engagement through spring pressure, completing the connection between the connecting component 4 and the connecting component drive unit 15; then the electric heating rod 158 is started to heat the steel in the heating furnace 152, and at the same time, the first motor 51 is started to make the toothed disk 52 drive the first gear 53 to rotate, and the first gear 53 drives the first sub-connecting disk 55 to rotate through the first connecting shaft 54, and then drives the material shaft 11 and the material disk 12 to rotate synchronously through the connecting component 4, so as to achieve uniform heating of the steel. Before heating the steel, the fifth motor 164 is started to drive the bidirectional threaded rod 1610 to rotate through the second reducer 165, so that the gate plate 162 moves along the rectangular groove in the middle of the support plate 161 toward the telescopic rod of the hydraulic cylinder 13. Since arc grooves 163 are provided on the upper and lower sides of the middle of the opposite end of the gate plate 162, the gate plate 162 can better fit with the telescopic rod of the hydraulic cylinder 13. During the fitting process, the T-shaped slider 167 is squeezed and moves along the slide rod 169 toward the inside of the T-shaped slide groove 166, and squeezes the second compression spring 168 to form a secondary seal.When the steel is heated to the quenching temperature, the furnace gate assembly 16 is opened and the hydraulic cylinder 13 is retracted. When the material rack 10 enters the quenching pool 14, the furnace gate assembly 16 is then closed and the air pump 71 is turned on. When the material rack 10 is immersed in the quenching liquid in the quenching pool 14, the air pump 71 sucks and moves the high-temperature exhaust gas into the heating furnace 152 through the arc pipe 73 and the connecting pipe 74, and then introduces it into the air guide pipe 761 through the exhaust pipe 75. The exhaust gas introduced into the air bin 763 by the air guide pipe 761 is ejected at high speed along the tangential direction, driving the wind wheel 764 to rotate, and driving the stirring paddle 766 to stir the quenching liquid through the rotating shaft 765 to promote the uniformity of the quenching liquid temperature. The exhaust gas is finally discharged through the exhaust pipe 762, and the exhaust pipe 762 can be connected to an external exhaust gas treatment device to avoid polluting the environment; then, the second motor 61 is started, so that the second motor 61 drives the driven gear ring 63 to rotate through the second gear 62, and the driven gear ring 63 drives the second auxiliary connecting plate 65 to rotate synchronously through the third gear 64 and the second connecting shaft 66. Since the hydraulic cylinder 13 drives the material rack 10 to retract to the bottom of the quenching pool 14, the main connecting plate 44 at the bottom of the material shaft 11 is engaged with the conical teeth on the top of the second auxiliary connecting plate 65 under the pressure of the spring, completing the connection component 4 and the connection component drive unit 2. 6, by driving the material shaft 11 and the material tray 12 to rotate, the steel is kept dynamically cooled in the quenching liquid, reducing the risk of deformation caused by thermal stress; during the quenching process, the liquid inlet pipe 17 is connected to the external quenching liquid pipeline, and new quenching liquid can be continuously added to the quenching pool 14. At the same time, by opening the third electric valve 19, and controlling the flow rate of the quenching liquid discharged through the third electric valve 19, the second liquid discharge pipe 18 discharges the high-temperature quenching liquid to the diversion pipe 20, and after diversion, it flows into the U-shaped connecting pipe 21 respectively. The magnet ring 22 on the outside of the U-shaped connecting pipe 21 absorbs magnetic impurities in the quenching liquid, and non-magnetic particles The particles settle to the bottom of the U-shaped connecting pipe 21 due to gravity; when it is necessary to clean the impurity particles in the U-shaped connecting pipe 21, the third electric valve 19 is closed, the third motor 81 is started, the threaded rod 83 is driven to rotate, and the movable frame 82 is driven to move downward along the slide rail 84. The piston rod 85 pushes the piston to scrape the impurities on the inner wall of the U-shaped connecting pipe 21, and the waste liquid is discharged through the slag discharge pipe 23 and the fourth electric valve 24; the waste heat of the quenching liquid entering the cooling pool 251 through the other end of the U-shaped connecting pipe 21 can be heat exchanged with the external low-temperature water added to the cooling pipe group 252, which not only reduces the temperature of the quenching liquid but also realizes heat energy recovery;When using a circulating quenching liquid, water pump 91 is activated, which draws the cooled quenching liquid from cooling pool 251 through liquid extraction pipe 92 and delivers it to liquid inlet pipe 17 through first liquid discharge pipe 93, branch discharge pipe 94, and reflux pipe 1 95. When the temperature detected by liquid temperature sensor 96 exceeds a set value, second electric valve 99 is closed, and first electric valve 98 is opened, allowing the quenching liquid to be re-injected into cooling pool 251 through reflux pipe 2 97. Since reflux pipe 2 97 drains liquid tangentially along the power fan 255, power fan 255 rotates, driving stirring fan 254 to stir the quenching liquid, thereby further uniformizing the quenching liquid temperature. Finally, after quenching is completed, the steel is returned to heating furnace 152. The heating temperature and heating time of electric heating rod 158 are controlled according to the tempering process parameters to eliminate quenching stress and improve the toughness of the steel. The treated steel is then removed from heating furnace 152 along with rack 10, completing the entire quenching and tempering process.

[0039] The circuit connection involved in the present invention is a common method used by those skilled in the art, and technical inspiration can be obtained through limited experiments. It belongs to the widely used existing technology.

[0040] Components not described in detail herein are prior art.

[0041] Although the specific embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by ordinary technicians in this field, various changes can be made without departing from the purpose of the present invention. Modifications or deformations that do not involve creative work are still within the scope of protection of the present invention.

Claims

1. A steel heat treatment and tempering device, characterized in that: The invention comprises a base plate (1), an underground processing chamber (2), a connecting assembly (4), a connecting assembly driving unit 1 (5), a connecting assembly driving unit 2 (6), an exhaust gas guide unit (7), a scraping unit (8), a circulation unit (9), a material rack (10), a hydraulic cylinder (13), a quenching pool (14), a processing furnace assembly (15), a liquid inlet pipe (17), a second liquid outlet pipe (18) and a cooling assembly (25). The left end of the upper surface of the base plate (1) is provided with a processing furnace assembly (15), the processing furnace assembly (15) comprises a top plate (151), a heating furnace (152), a support column (153), a movable seat (154), a first reducer (155), a fourth motor (156), a track (157) and an electric heating rod (158). The bottom center of the top plate (151) is provided with a heating furnace (152), and six electric heating rods (158) are provided in a circular array at equal distances in the middle of the inner side of the heating furnace (152). A furnace gate assembly (16) is provided at the bottom of the hot furnace (152), and an exhaust gas guide unit (7) is provided below the furnace gate assembly (16). Two groups of support columns (153) are symmetrically provided at the front and rear ends of the bottom of the top plate (151), and a movable seat (154) is provided at the bottom of each group of support columns (153). Four movable wheels (159) are equidistantly installed on the bottom of the inner side of the movable seat (154). The movable wheels (159) are respectively slidably installed on the rails (157) symmetrically provided on the upper surface of the base plate (1). The output shafts of the first reducer (155) symmetrically provided at the middle part of the outer side of the movable seat (154) are respectively fixedly connected to the wheel axles at the centers of the movable wheels (159). The input shafts of the first reducer (155) are respectively fixedly connected to the output shafts of the fourth motor (156) provided at the top of the movable seat (154), and the fourth motors (156) are respectively fixedly installed on the top of the movable seat (154).An underground processing chamber (2) is provided at the bottom right end of the base plate (1), and a quenching pool (14) is provided at the center of the inner top of the underground processing chamber (2). The quenching pool (14) is a "cylindrical" structure. A sealing seat (26) is provided on the outer top sliding sleeve of the quenching pool (14). Electric telescopic rods (27) are provided at the four corners of the bottom of the sealing seat (26), and the electric telescopic rods (27) are fixedly installed on the inner top of the underground processing chamber (2). The telescopic ends of the electric telescopic rods (27) pass through the through holes provided on the base plate (1) and are fixedly connected to the bottom of the sealing seat (26). The annular ring provided on the upper surface of the sealing seat (26) The sealing groove (28) is movably connected to the annular plug block (29) provided at the bottom of the heating furnace (152). A material rack (10) is provided at the inner center of the quenching pool (14). Six material shafts (11) are provided in a circumferential array at equal distances around the material rack (10), and a material tray (12) is provided symmetrically in the middle of the material shaft (11). Through holes are provided in an array at the bottom of the material tray (12). Connecting components (4) are provided at the upper and lower ends of the material shaft (11), and the connecting components (4) are respectively connected to the connecting component drive unit 2 (6) provided at the bottom of the quenching pool (14) and the connecting component drive unit 1 (5) provided at the top of the heating furnace (152). ) is driven and connected, the bottom center of the material rack (10) is fixedly connected to the telescopic end of the hydraulic cylinder (13) provided at the bottom of the quenching pool (14), the bottom of the fixed end of the hydraulic cylinder (13) is fixedly connected to the inner bottom of the underground processing chamber (2), the top of the right end of the quenching pool (14) is connected to the liquid inlet pipe (17) provided at the top of the right side of the underground processing chamber (2), the left bottom of the quenching pool (14) is provided with a second drain pipe (18), and the other end of the second drain pipe (18) is provided with a third electric valve (19), the bottom of the other end of the second drain pipe (18) is connected to the shunt pipe (20), and the bottom of the shunt pipe (20) is equidistant. The array is provided with a U-shaped connecting pipe (21), a plurality of magnet rings (22) are provided at the middle of the outer side of the U-shaped connecting pipe (21), a scraping unit (8) is provided above the top of the U-shaped connecting pipe (21), a slag discharge pipe (23) is provided at the center of the bottom of the U-shaped connecting pipe (21), and a fourth electric valve (24) is provided at the bottom of the slag discharge pipe (23), the other end of the U-shaped connecting pipe (21) is respectively connected to the cooling assembly (25) provided at the left end of the bottom inside the underground processing chamber (2), the right end of the cooling assembly (25) is provided with a circulation unit (9), and the top of the circulation unit (9) is connected to the middle of the liquid inlet pipe (17).

2. The steel heat treatment and tempering device according to claim 1, characterized in that: The connecting assembly (4) comprises a fixed plate (41), a rectangular guide rod (42), a first compression spring (43), a main connecting disk (44) and a tapered tooth groove (45). The fixed plate (41) is respectively welded to the upper and lower ends of the material shaft (11), and a rectangular guide rod (42) is respectively provided at the center of the other side of the fixed plate (41). The outer side of the rectangular guide rod (42) is respectively provided with a main connecting disk (44) by a sliding sleeve. A first compression spring (43) is respectively provided between the main connecting disk (44) and the fixed plate (41), and the upper and lower ends of the first compression spring (43) are respectively fixedly connected to the fixed plate (41) and the main connecting disk (44). The other end surface of the main connecting disk (44) is respectively provided with a tapered tooth groove (45) in an equidistant circumferential array.

3. The steel heat treatment and tempering device according to claim 2, characterized in that: The connecting assembly driving unit 1 (5) comprises a first motor (51), a toothed disc (52), a first gear (53), a first connecting shaft (54) and a first auxiliary connecting disc (55), wherein the first auxiliary connecting disc (55) is respectively arranged at the inner top of the heating furnace (152), and the first auxiliary connecting disc (55) is respectively located directly above the connecting assembly (4), the conical teeth arranged in an equidistant circumferential array at the bottom of the first auxiliary connecting disc (55) are respectively movably plugged into the conical tooth grooves (45), the top center of the first auxiliary connecting disc (55) is respectively fixedly connected to the first connecting shaft (54) rotatably installed in the middle of the top plate (151), the top end of the first connecting shaft (54) is respectively welded with the first gear (53), the first motor (51) is fixedly installed at the top center of the top plate (151), the output shaft end of the first motor (51) is fixedly installed with a toothed disc (52), and the teeth arranged on the outer side of the toothed disc (52) are respectively engaged with the teeth on the first gear (53).

4. The steel heat treatment and tempering device according to claim 2, characterized in that: The connecting assembly driving unit 2 (6) comprises a second motor (61), a second gear (62), a driven gear ring (63), a third gear (64), a second auxiliary connecting disk (65) and a second connecting shaft (66), wherein the second auxiliary connecting disk (65) is respectively arranged at the inner bottom of the quenching pool (14), and the second auxiliary connecting disk (65) is respectively located directly below the connecting assembly (4), the bottom center of the second auxiliary connecting disk (65) is respectively fixedly connected to the second connecting shaft (66) rotatably installed at the bottom of the quenching pool (14), and the top of the second auxiliary connecting disk (65) is equidistant from the circumference. The conical teeth arranged in an array are movably plugged into the conical tooth grooves (45) respectively. The bottom of the second connecting shaft (66) passes through the quenching pool (14) and is fixedly connected to the third gear (64). The teeth on the third gear (64) are respectively engaged with the teeth on the inner side of the driven gear ring (63) rotatably installed at the bottom of the quenching pool (14). A second motor (61) is fixedly installed at the right bottom of the quenching pool (14). The output shaft of the second motor (61) is fixedly installed with a second gear (62). The teeth on the second gear (62) are engaged with the teeth on the outer side of the driven gear ring (63).

5. The steel heat treatment and tempering device according to claim 1, characterized in that: The furnace gate assembly (16) comprises a support plate (161), a gate plate (162), an arc groove (163), a fifth motor (164), a second reducer (165), a T-shaped slide groove (166), a T-shaped slider (167), a second compression spring (168), a slide rod (169) and a bidirectional threaded rod (1610). The support plate (161) is arranged at the bottom of the heating furnace (152) and the support column (153). The gate plates (162) are respectively slidably installed in the rectangular grooves arranged in the middle of the front and rear ends of the support plate (161). The screw holes arranged at the left and right ends of the gate plate (162) are respectively threadedly connected with the bidirectional threaded rods (1610) rotatably installed at the left and right ends of the rectangular groove. The front and rear ends of the bidirectional threaded rod (1610) are arranged with threads in opposite directions. The rear end of the bidirectional threaded rod (1610) is respectively provided with a second reducer (165), and the second reducer (165) is fixedly installed. On the rear side of the support plate (161), the output shaft of the second reducer (165) is fixedly connected to the rear end of the bidirectional threaded rod (1610), and the input shaft of the second reducer (165) is fixedly connected to the output shaft of the fifth motor (164) fixedly installed on the support plate (161); arc grooves (163) are respectively provided on the upper and lower sides of the middle part of the opposite end of the gate plate (162), and T-shaped slide grooves (166) are respectively provided in the middle part of the gate plate (162), and T-shaped sliders (167) are respectively slidably mounted inside the T-shaped slide grooves (166), and the sliding holes provided at the left and right ends of the T-shaped slide grooves (167) are respectively slidably mounted on the slide rods (169) provided inside the T-shaped slide grooves (166), and second compression springs (168) are respectively provided between the T-shaped slide grooves (167) and the T-shaped slide grooves (166), and the second compression springs (168) are respectively set on the outside of the slide rods (169).

6. The steel heat treatment and tempering device according to claim 5, characterized in that: The exhaust gas exhaust unit (7) comprises an air pump (71), an exhaust pipe (72), an arc-shaped pipe (73), a connecting pipe (74), an exhaust pipe (75) and an air guide assembly (76). Two arc-shaped pipes (73) are provided. The arc-shaped pipes (73) are symmetrically arranged at the outer bottom of the heating furnace (152) in front and back directions, and the arc-shaped pipes (73) are respectively located below the support plate (161). A plurality of connecting pipes (74) are equidistantly provided at one end of the arc-shaped pipe (73) relative to the heating furnace (152). The other end of the connecting pipe (74) is divided into The arc tube (73) is connected to the interior of the heating furnace (152), and the right end of the arc tube (73) is connected to an exhaust pipe (72). The other end of the exhaust pipe (72) is fixedly connected to the exhaust end of the air pump (71) fixedly installed on the top of the support plate (161). The exhaust end of the air pump (71) is fixedly installed with an exhaust pipe (75). The other end of the exhaust pipe (75) is respectively provided with a rubber sleeve on the outside, and the end of the exhaust pipe (75) is movably connected to the air guide component (76) provided at the right end of the top of the underground treatment chamber (2).

7. The steel heat treatment and tempering device according to claim 6, characterized in that: The air guide assembly (76) comprises an air guide pipe (761), an exhaust pipe (762), an air bin (763), a wind wheel (764), a rotating shaft (765) and a stirring paddle (766). Two air guide pipes (761) are provided. The air guide pipes (761) are symmetrically arranged at the top of the right end of the underground processing chamber (2). One end of the air guide pipe (761) connected to the exhaust pipe (75) is in a "trumpet" shape. The other end of the air guide pipe (761) is connected to the air bins (763) arranged at the bottom of the front and rear sides of the quenching pool (14). The other end of the air bins (763) is respectively provided with A waste discharge pipe (762) is provided, and the waste discharge pipe (762) and the air guide pipe (761) are respectively arranged along the tangential direction of the gas bin (763). The other end of the waste discharge pipe (762) is respectively located at the front and rear ends of the outer side of the underground processing chamber (2). A wind wheel (764) is respectively provided in the middle of the inner side of the gas bin (763), and the wind wheel (764) is respectively fixedly installed on the rotating shaft (765) rotatably installed at the bottom of the front and rear sides of the quenching pool (14). The other end of the rotating shaft (765) is respectively fixedly installed with a stirring paddle (766), and the stirring paddle (766) is respectively located at the inner bottom of the quenching pool (14).

8. The steel heat treatment and tempering device according to claim 1, characterized in that: The scraping unit (8) comprises a third motor (81), a movable frame (82), a threaded rod (83), a slide rail (84) and a piston rod (85), wherein the piston rods (85) are respectively arranged at the top of the U-shaped connecting tube (21), the pistons arranged at the bottom of the piston rods (85) are respectively slidably mounted on the inner side of the U-shaped connecting tube (21), and the tops of the adjacent piston rods (85) are respectively fixedly mounted with movable frames (82), and the third motor (81) is respectively arranged above the movable frames (82), and the third motor (81) is respectively fixedly mounted at the bottom of the base plate (1), the output shaft of the third motor (81) is fixedly connected to the top of the threaded rod (83) threadedly mounted in the middle of the movable frame (82), the bottom of the threaded rod (83) is respectively rotatably mounted on the extension plate arranged at the top left of the underground processing chamber (2), and the guide grooves arranged at the rear side of the movable frame (82) are respectively slidably connected to the slide rail (84) arranged at the top left of the underground processing chamber (2).

9. The steel heat treatment and tempering device according to claim 1, characterized in that: The cooling assembly (25) comprises a cooling pool (251), a cooling pipe group (252), a third connecting shaft (253), a stirring fan (254) and a power fan (255). The cooling pool (251) is arranged at the inner left end of the underground treatment chamber (2). The cooling pipe group (252) is fixedly installed in the middle of the cooling pool (251), and the liquid inlet end and the liquid discharge end of the cooling pipe group (252) are respectively located at the outer front side of the underground treatment chamber (2). The third connecting shaft (253) is respectively installed vertically at the front and rear ends of the interior of the cooling pool (251). The power fan (255) is respectively fixedly installed on the top of the third connecting shaft (253), and the stirring fan (254) is respectively fixedly installed on the bottom of the third connecting shaft (253).

10. The steel heat treatment and tempering device according to claim 9, characterized in that: The circulation unit (9) comprises a water pump (91), a liquid extraction pipe (92), a first liquid discharge pipe (93), a branch pipe (94), a return pipe 1 (95), a liquid temperature sensor (96), a return pipe 2 (97), a first electric valve (98) and a second electric valve (99). Two water pumps (91) are provided, and the water pumps (91) are respectively provided at the front and rear ends of the inner bottom of the underground treatment chamber (2). The liquid extraction ends of the water pumps (91) are respectively provided with liquid extraction pipes (92), and the other ends of the liquid extraction pipes (92) are respectively connected to the right bottom of the cooling pool (251). The liquid discharge ends of the water pumps (91) are respectively provided with first liquid discharge pipes (93), and the first liquid discharge pipes The other end of (93) is connected to a branch pipe (94), the middle of the branch pipe (94) is provided with a return pipe (95) connected to the middle of the liquid inlet pipe (17), the top of the return pipe (95) is provided with a second electric valve (99), the bottom of the return pipe (95) is provided with a liquid temperature sensor (96), the middle of the branch pipe (94) is symmetrically provided with a return pipe (97) in the front and back, the bottom of the return pipe (97) is provided with a first electric valve (98), the other end of the return pipe (97) is respectively connected to the top of the right side of the cooling pool (251), and the return pipe (97) is respectively provided along the tangent direction of the power fan (255).

11. The steel heat treatment and tempering device according to claim 5, characterized in that: The invention also includes a controller (3), which is arranged at the front right side of the support plate (161). The controller (3) is electrically connected to the first motor (51), the second motor (61), the air pump (71), the third motor (81), the water pump (91), the liquid temperature sensor (96), the first electric valve (98), the second electric valve (99), the hydraulic cylinder (13), the fourth motor (156), the electric heating rod (158), the fifth motor (164), the third electric valve (19), the fourth electric valve (24) and the electric telescopic rod (27).

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