Quenching and tempering integrated equipment for producing wind power gear steel and production process of quenching and tempering integrated equipment

Abstract

The invention relates to the technical field of quenching and tempering, in particular to quenching and tempering integrated equipment for wind power gear steel production and a production process of the quenching and tempering integrated equipment. The quenching and tempering integrated equipment comprises a base frame, a feeding module, a carrying module, a heating furnace, a quenching box, a tempering furnace, a gas transmission part and a storage heat preservation module; a guide rail is arranged on the inner side of the frame, a feeding module is arranged at the left end of a rail frame, the feeding module comprises a material conveying part partially located on the inner side of the rail frame, the material conveying part comprises a bottom plate, supporting rods are fixedly connected to the four corners of the upper side of the bottom plate, and side plates are fixedly connected to the upper sides of the left supporting rod and the right supporting rod. By arranging the carrying module, the feeding module and other structures, the quenching and tempering integrated equipment can automatically and efficiently hoist a plurality of wind power gear steel billets at intervals, so that the subsequent heat treatment efficiency is improved, and it is ensured that the steel billets are uniformly heated.

Description

Technical Field

[0001] The invention relates to the technical field of quenching and tempering, and in particular to integrated quenching and tempering equipment for producing wind power gear steel and a production process thereof. Background Art

[0002] Wind power gear steel is a key material used to manufacture wind turbine gears. Its production process involves multiple links, including raw material selection, smelting, forging, heat treatment, etc. Among them, the quenching and tempering process of wind power gear steel is the key link in the heat treatment process, which is mainly used to improve the hardness, wear resistance and fatigue resistance of gear steel, while ensuring that the material maintains sufficient toughness and plasticity.

[0003] Existing quenching and tempering processes usually involve multiple independent equipment, such as a heating furnace for quenching, a quenching box and a tempering furnace for tempering. These equipment are dispersed and have a low degree of integration. Such a layout requires workers to manually move workpieces from one device to another. The operation process is cumbersome and inconvenient, especially for wind power gear steels with larger size and heavier weight. In order to improve the heat treatment efficiency and ensure uniform heating, in theory, multiple gear steels should be hoisted at intervals at the same time, and multiple gear steels should be heat treated at the same time. However, due to the limitations of their volume and weight, the difficulty of hoisting and the complexity of operation are further increased. In addition, the wind power gear steel after tempering needs to be kept warm in the tempering furnace for several hours, which not only occupies the tempering furnace resources for a long time, but also affects the overall production progress. Therefore, based on the above problems, a quenching and tempering integrated equipment and a production process for wind power gear steel production are proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a quenching and tempering integrated equipment and production process for the production of wind turbine gear steel, so as to solve the problem that traditional manual lifting operations are difficult to achieve multiple and spaced lifting when handling larger and heavier wind turbine gear steels, resulting in high operating difficulty and complicated and inconvenient procedures.

[0005] To achieve the above object, the present invention provides the following technical solutions: A quenching and tempering integrated equipment for producing wind power gear steel and a production process thereof, comprising a base frame, a loading module, a handling module, a heating furnace, a quenching box, a tempering furnace, a gas transmission part and a storage and insulation module, wherein the base frame comprises a rail frame, the upper side of the rail frame is fixedly connected to a frame, a guide rail is provided on the inner side of the frame, a loading module is provided at the left end of the rail frame, the loading module comprises a feeding part which is partially located on the inner side of the rail frame, the feeding part comprises a bottom plate, the four corners of the upper side of the bottom plate are fixedly connected to support rods, the upper sides of the left and right support rods are fixedly connected to side plates, a group of side plates are rotatably connected to symmetrically arranged rollers, the left side of the left side plate is fixedly connected to a motor, and the The end of the output shaft of the motor is fixedly connected to the rear roller, and a group of the rollers are sleeved on the left and right sides of the outside, a group of the side plates are fixedly connected to a barrel on the rear side of the frame, and a discharge port is provided at the front lower part of the barrel, and a lifting part is installed on the upper side of the bottom plate, and the lifting part includes a cylinder fixed to the upper side of the bottom plate, and a back plate located between a group of conveyor belts is fixedly connected to the upper side of the cylinder, and a connecting plate is fixedly connected to each loading port of the back plate, and a pallet is fixedly connected to the rear side of the connecting plate, and a notch is provided on the inner side of the pallet, and contact buttons are installed at the countersunk holes of the pallet, and a transport module located on the upper side of the lifting part is installed on the upper side of the rail frame.

[0006] Preferably, the handling module comprises a transfer frame, an electric push rod, a base column, a supporting part and a transmission part, the transfer frame is arranged on the steel rail at the top of the rail frame through an electric roller, the upper side opening of the transfer frame is fixedly connected with the electric push rod, and the lower driving rod of the electric push rod is fixedly connected with the base column, the base column comprises a column shell, a middle channel is opened on the inner side of the column shell, and through rails are opened on the upper front and rear sides of the middle channel, and a plurality of groups of block grooves arranged at equal distances are opened on the outer curved surface of the lower part of the column shell, and a group of the block grooves has a total of four and are arranged at equal angles, and the block grooves are connected to the middle channel by through holes, and the supporting part comprises two rail rods slidably connected to the through rails, and a group of the rail rods are fixedly connected A base block is connected to the inner side of the middle channel, a connecting rod is fixedly connected to the lower side of the base block, a supporting block is slidably connected in the block groove, a connecting rope passing through the through hole is fixedly connected between the supporting block and the connecting rod, a spring in the block groove is sleeved on the outer side of the connecting rope, a connecting block is fixedly connected to the end of the rail rod away from the base block, the transmission part includes a sleeve plate sleeved on the outer side of the column shell, transversely arranged tracks are opened on both sides of the sleeve plate, track blocks are slidably connected on the inner side of the track, and guide plates on the upper side of the sleeve plate are fixedly connected on the upper side of the track blocks, a group of facing surfaces of the guide plates are fixedly connected with push strips, and a heating furnace, a quenching box and a tempering furnace are sequentially and transversely arranged on the right side of the lifting part.

[0007] Preferably, the inner upper side of the barrel is a flared structure, the barrel is arranged on the upper side of a group of conveyor belts, the upper sides of the side plates are fixedly connected to limit plates, the facing surfaces of a group of side plates are fixedly connected to pads, and the upper end surfaces of the pads are in contact with the upper inner wall of the conveyor belt.

[0008] Preferably, the spacing between a group of support plates is the same, the button bodies of the contact buttons are higher than the upper end surfaces of the support plates, the notches are all set to open to the right, the notches are all set on the lower side of the base column, and the inner diameter of the notches is larger than the diameter of the base column.

[0009] Preferably, the spring is arranged between the outer end surface of the support block and the inner wall of the block groove, the sleeve plate is arranged on the lower side of the linkage block, the inclined surface of the linkage block is fitted with the inclined surface of the guide plate, the push bar is an arc-shaped bar structure, the push bar is arranged on the right side of the sleeve plate, and the upper end protrusion of the transfer frame is slidably connected to the guide rail.

[0010] Preferably, a storage and insulation module located at the lower side of the rail frame is arranged on the right side of the tempering furnace, and the storage and insulation module comprises a shell part, a through pipe, a driving part, an inner partition, a storage shelf plate, a base cover and a flip cover part, the shell part comprises a storage shell, a rotation groove is opened on the lower side of the storage cavity of the storage shell, the lower side of the rotation groove is connected with a pipeline, the right side of the rotation groove is connected with a belt path, the inner side of the pipeline is fixedly connected with a through pipe, the driving part comprises a support plate fixed to the right side of the storage shell, the upper side of the support plate is fixedly connected with a motor, the end of the output shaft of the motor is fixedly connected with a synchronous wheel, the outer side of the riser of the through pipe is rotatably connected with a synchronous wheel in the rotation groove, a group of the synchronous wheels are provided with a synchronous belt passing through the belt path on the outer side, the inner partition comprises a seat plate fixedly connected to the left synchronous wheel, An air cavity connected with the through pipe is provided on the inner side of the seat plate, a partition plate is fixedly connected to the upper side of the seat plate, a plurality of groups of air inlet holes are provided on the upper side of the air cavity and air intake holes are located between the partition plates, shelf plates are fixedly connected between the partition plates, a base cover with a left opening is installed on the upper side of the partition plate, a flip cover part is installed at the opening of the base cover, the flip cover part includes a stand fixedly connected to the inner wall of the base cover at the opening corner, a storage groove with a left opening is provided on the inner side of the stand, a flip cover rotatably connected to the stand is provided on the inner side of the storage groove, the gas delivery part includes a shunt pipe connected with the heating furnace and the tempering furnace, the right end of the shunt pipe is connected with an air pump, the right side of the air pump is connected with an air delivery pipe, and the rear side of the right end of the air delivery pipe is connected with a flexible pipe.

[0011] Preferably, the inner partition is arranged on the inner side of the storage cavity of the storage shell, the lower end surface of the seat plate is fitted with the lower inner wall of the storage cavity of the storage shell, the outer curved surfaces of the seat plate and the partition plate are fitted with the inner curved surface of the storage shell, pin blocks are provided on both sides of the upper part of the storage shell, pin plates are provided on both sides of the upper part of the base cover, the pin blocks of the storage shell are inserted into the pin plates of the base cover, and a plurality of exhaust holes arranged at equal angles are provided on the inner side of the base cover.

[0012] Preferably, the front end of the through pipe protrudes from the storage shell, the rear end of the flexible pipe is sleeved on the outside of the front end of the through pipe, the upper inner wall of the storage groove is fixedly connected with a damping pad, the lower end surface of the damping pad is fitted with the upper curved surface of the flap, and the widest dimension of the flap is smaller than the dimension between a group of rails of the rail frame.

[0013] Preferably, the production process comprises: Step 1: Raw material preparation. First, select alloy structural steel with high strength, high toughness and high hardenability, such as carburizing steel and quenched and tempered steel. These materials need to have high purity, high structural uniformity and good mechanical properties to meet the use requirements of wind power gear steel under high load and complex working conditions; Step 2: Smelting and casting, using electric arc furnace or converter for preliminary smelting, and then further purification through refining outside the furnace, and finally removing gas and impurities through vacuum degassing or vacuum oxygen decarburization to ensure the purity of molten steel and complete smelting; then the refined molten steel is cast into ingots or continuous casting billets. During the process, the casting temperature and cooling rate need to be strictly controlled to avoid internal defects and complete casting; Step 3: Forging and preliminary treatment. Forging is one of the key steps in the production of wind turbine gear steel. During the forging process, the steel ingot or continuous casting billet is heated to an appropriate temperature and then subjected to free forging or die forging on the forging equipment to improve the density and mechanical properties of the material and eliminate internal defects. The forged steel parts are preliminarily machined by machine tools to meet the size and shape accuracy required by the wind turbine gear drawings, and the wind turbine gear billet is obtained to complete the preliminary treatment. Step 4: Pre-operation before quenching and tempering. The wind turbine gear billets are transported one by one to the barrel of the loading module through the external overhead conveyor belt equipment. The billets enter through the upper expansion opening of the barrel and are stacked in the barrel. The motor is started through the control box to drive the rear roller to move forward in a cycle, pushing the billet at the bottom of the barrel through the discharge port. The limit plates on both sides provide guidance for the billet to move toward the back plate. When the billet contacts the back plate, the contact button on the upper side support plate will be squeezed, indicating that the first billet is in place. At this time, the control box controls the back plate and the support plate to move up a set distance through the cylinder, and the middle side support plate moves up to replace the original position of the upper side support plate. Repeat the above operation and wait for the next billet to be in place. When After all the billets on the upper, middle and lower side pallets are in place, the control box stops the conveyor belt and no longer conveys new billets. At the same time, the cylinder further extends and pushes upward to move each pallet upward, lift each billet and move it toward the handling module, so that the base column passes through the billets and pallets that are moving upward. During this period, each group of support blocks performs telescopic movement in each block slot, and finally unfolds in the notch of each pallet to lift each billet. At this time, the transfer frame is controlled to move right, driving the base column and the supporting part to move, so that each billet is separated from the pallet and moves to the right, completing the pre-hoisting operation before quenching and tempering. Through this operation, the quenching and tempering integrated equipment can automatically hoist multiple wind power gear billets at intervals, thereby improving the subsequent heat treatment efficiency and ensuring that the billets are heated evenly; Step 5: Quenching operation: each wind turbine gear steel billet is transported to the top of the heating furnace through the transport module. Then, the control box drives the electric push rod to extend, pushes the base column and the supporting part downward, and makes the wind turbine gear steel billet enter the heating furnace with the base column and the supporting part. In the heating furnace, the steel billet is heated to above the critical temperature Ac3 or Ac1. After the heating is completed, the steel billet is immediately transported to the quenching box through the transport module, and the quenching liquid in the quenching box is used to quickly cool the steel billet to complete the quenching process. The quenched steel billet will obtain high hardness and high strength, but the internal stress is large, so subsequent tempering treatment is required; Step 6: Tempering and reheating operation: the wind turbine gear steel billets that have been quenched are transported to the tempering furnace for high-temperature tempering through the transport module, so that the quenched steel billets are reheated to an appropriate temperature below the lower critical temperature Ac1. During the tempering process, martensite decomposes and residual austenite decreases, so that the hardness is reduced and the toughness is improved, and the tempering and reheating operation is completed; Step seven: tempering and heat preservation operation, the wind turbine gear billet to be insulated is transported to the top of the base cover opening through the transport module, and then the electric push rod is controlled to extend, pushing the base column and the supporting part to move downward, so that the billet passes through the base cover and enters the storage shell, and ensures that each billet is higher than each storage plate of the storage shelf plate. At this time, the transfer frame is controlled to move to the right, driving the electric push rod, the base column, the supporting part and the transmission part to move to the right as a whole. The right movement of the base column and the supporting part transports each billet to the top of each storage plate of the storage shelf plate, so that the storage shelf plate supports each billet; and the right movement of the transmission part causes the push bar to be squeezed by the cover-lifting part, driving the guide plate to move to the left, and then the connecting block, the rail rod, the base block and the connecting rod move up in turn, and the upward movement of the connecting rod drives each group of support blocks to retract into the block groove through the connecting rope, so that each group of support blocks no longer supports the billet, so that the transport module completes the lifting task. At this time, The electric push rod is controlled to retract, driving the base column to move up and separate from the steel billet. Subsequently, the drive unit drives the inner partition to rotate 60 degrees, and moves other idle storage racks to the opening of the base cover, ready to receive the next group of steel billets for thermal insulation storage; when there are no idle storage racks, it indicates that the storage and insulation module has reached the maximum storage capacity. At this time, the storage and insulation module will no longer receive new steel billets. At this time, the staff can turn the flap to close the opening of the base cover for thermal insulation; to ensure that the temperature in the storage shell is suitable for thermal insulation, the control box will regularly start the vacuum pump, and through the shunt pipe, gas pipe, flexible pipe and through pipe, the high-temperature gas in the heating furnace and the tempering furnace is transported to the air cavity, and then sent into the storage shell through the air inlet, and finally discharged from the exhaust hole of the base cover. This process can keep the wind turbine gear billet in the storage shell warm for a long time and complete the tempering and thermal insulation operation; Step 8: Tempering air cooling operation. After the long-term heat preservation of the wind turbine gear billet, the flexible pipe and the through pipe can be separated after the heat preservation is completed, and the storage insulation module is moved to the right out of the rail frame as a whole. Then, the base cover is removed to fully open the storage shell to expose the wind turbine gear billet stored inside. At this time, the billet is placed in the air for natural cooling. This process helps to stabilize the organizational structure of the steel and effectively eliminate internal stress. The air cooling operation is completed, and the entire tempering operation is also completed; Step nine: Post-processing operation, the wind turbine gear steel billet after quenching and tempering is subjected to gear grinding and finishing to improve the tooth shape accuracy and surface finish, and then hardness testing, size testing, surface quality testing and metallographic testing are carried out to ensure that it meets the design requirements, thereby completing the production of wind turbine gear steel.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by providing structures such as a conveying module and a loading module, the feeding part of the loading module can convey the wind turbine gear billets stacked in the barrel to the lifting part in sequence, and the lifting part can stack the conveyed wind turbine gear billets at intervals, and then push the stacked wind turbine gear billets up to the conveying module, and the stacked wind turbine gear billets can be hoisted at intervals through the base column and the supporting part of the conveying module, so that the quenching and tempering integrated equipment can automatically and efficiently hoist a plurality of wind turbine gear billets at intervals, thereby improving the subsequent heat treatment efficiency and ensuring that the billets are heated evenly, and solving the problem that the traditional manual hoisting operation is difficult to achieve multiple and spaced hoisting when processing wind turbine gear steels with larger size and heavier weight, resulting in high difficulty in operation and cumbersome and inconvenient procedures; 2. In the present invention, by providing structures such as a storage and insulation module, a gas transmission unit, a heating furnace and a tempering furnace, the transport module can transport the wind turbine gear billet to be insulated to the storage and insulation module for storage, and the gas transmission unit can regularly transmit the high-temperature airflow in the heating furnace and the tempering furnace to the storage and insulation module, so that the temperature in the storage and insulation module always maintains a temperature suitable for the insulation of the wind turbine gear billet. By virtue of the large storage capacity and insulation capacity of the storage and insulation module, the wind turbine gear billet is prevented from occupying the tempering furnace resources for a long time, thereby ensuring the overall production progress of the wind turbine gear steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Another perspective structural diagram of; Figure 3 It is a structural schematic diagram of the base frame of the present invention; Figure 4 It is a structural schematic diagram of the feeding module of the present invention; Figure 5 For the present invention Figure 4 A schematic cross-sectional structure diagram of ; Figure 6 It is a structural schematic diagram of the feeding part of the present invention; Figure 7 It is a structural schematic diagram of the lifting part of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the split structure; Fig. 9 It is a structural schematic diagram of the handling module of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the base column of the present invention; Fig.11 For the present invention Fig.10 A schematic diagram of the structure at A; Fig.12 It is a schematic diagram of the cross-sectional structure of the base column of the present invention; Fig.13 It is a structural schematic diagram of the transmission part of the present invention; Fig.14 It is a structural schematic diagram of the gas transmission part of the present invention; Fig.15 This is a structural schematic diagram of the storage and heat preservation module of the present invention; Fig.16 For the present invention Fig.15 A schematic cross-sectional structure diagram of ; Fig.17 For the present invention Fig.16 Schematic diagram of the structure viewed from above; Fig.18 It is a schematic cross-sectional structure diagram of the shell portion of the present invention; Fig.19 It is a schematic diagram of the cross-sectional structure of the inner partition of the present invention; Fig. 20 It is a structural schematic diagram of the pipe-passing part of the present invention; Fig.21 It is a structural schematic diagram of the storage shelf plate of the present invention; Fig. 22 It is a schematic diagram of the separation structure of the base cover and the flip cover part of the present invention; Fig.23 It is a schematic diagram of the separation structure of the flip cover part of the present invention.

[0016] In the figure: 1, base frame; 11, rail frame; 12, frame; 13, guide rail; 2, loading module; 21, feeding part; 211, bottom plate; 212, support rod; 213, side plate; 214, roller; 215, motor; 216, conveyor belt; 217, pad; 22, barrel; 23, discharge port; 24, limit plate; 25, lifting part; 251, cylinder; 252, back plate; 253, connecting plate ; 254, support plate; 255, notch; 256, contact button; 3, handling module; 31, transfer rack; 32, electric push rod; 33, base column; 331, column shell; 332, middle channel; 333, through rail; 334, block groove; 335, through hole; 34, supporting part; 341, rail rod; 342, base block; 343, connecting rod; 344, connecting rope; 345, support block; 346, spring; 347, linkage block; 35, transmission part; 351, sleeve plate; 352, track; 353, track block; 354, guide plate; 355, push bar; 4, heating furnace; 5, quenching box; 6, tempering furnace; 7, gas transmission part; 71, shunt pipe; 72, vacuum pump; 73, gas transmission pipe; 74, flexible pipe; 8, storage and insulation module; 81, shell; 811, storage shell; 812, rotating trough; 813, pipeline; 814, beltway; 82, through-pipe; 83, driving part; 831, support plate; 832, motor; 833, synchronous wheel; 834, synchronous belt; 84, inner partition; 841, seat plate; 842, air cavity; 843, air inlet hole; 844, partition plate; 85, shelf plate; 86, base cover; 87, flip cover part; 871, stand; 872, storage slot; 873, flip cover; 874, damping pad. DETAILED DESCRIPTION

[0017] See also Figure 1-23 , the present invention provides a technical solution: A quenching and tempering integrated equipment for producing wind power gear steel and a production process thereof, comprising a base frame 1, a loading module 2, a handling module 3, a heating furnace 4, a quenching box 5, a tempering furnace 6, a gas delivery unit 7 and a storage and insulation module 8, wherein the base frame 1 comprises a rail frame 11, a frame 12 is fixedly connected to the upper side of the rail frame 11, a guide rail 13 is provided on the inner side of the frame 12, a loading module 2 is provided at the left end of the rail frame 11, the loading module 2 comprises a delivery unit 21 which is partially located on the inner side of the rail frame 11, the delivery unit 21 comprises a bottom plate 211, support rods 212 are fixedly connected to the four corners of the upper side of the bottom plate 211, side plates 213 are fixedly connected to the upper sides of the left and right support rods 212, a group of side plates 213 are rotatably connected with symmetrically arranged rollers 214, a motor 215 is fixedly connected to the left side of the left side plate 213, and an output shaft of the motor 215 The end is fixedly connected with the rear roller 214, and a group of rollers 214 are sleeved with conveyor belts 216 on the left and right sides of the outside. A group of side plates 213 are fixedly connected with a barrel 22 on the rear side of the frame 12 on the upper side, and a discharge port 23 is provided at the front lower part of the barrel 22. A lifting part 25 is installed on the upper side of the bottom plate 211. The lifting part 25 includes a cylinder 251 fixed on the upper side of the bottom plate 211, and a back plate 252 between a group of conveyor belts 216 is fixedly connected on the upper side of the cylinder 251. A connecting plate 253 is fixedly connected in each loading port of the back plate 252, and a supporting plate 254 is fixedly connected to the rear side of the connecting plate 253. A notch 255 is provided on the inner side of the supporting plate 254, and a contact button 256 is installed at the countersunk hole of the supporting plate 254. A handling module 3 on the upper side of the lifting part 25 is installed on the upper side of the rail frame 11;The transport module 3 includes a transfer frame 31, an electric push rod 32, a base column 33, a supporting part 34 and a transmission part 35. The transfer frame 31 is arranged on the steel rail at the top of the rail frame 11 through an electric roller. The upper side opening of the transfer frame 31 is fixedly connected with the electric push rod 32, and the lower driving rod of the electric push rod 32 is fixedly connected with the base column 33. The base column 33 includes a column shell 331, and a middle channel 332 is opened on the inner side of the column shell 331. Through rails 333 are opened on both the front and rear sides of the upper part of the middle channel 332. A plurality of groups of block grooves 334 arranged at equal distances are opened on the lower outer curved surface of the column shell 331. A group of block grooves 334 is provided with four and arranged in a row. The block groove 334 and the middle channel 332 are arranged at equal angles, and a through hole 335 is connected between the block groove 334 and the middle channel 332. The supporting part 34 includes two rail rods 341 slidably connected to the through rail 333. A base block 342 located inside the middle channel 332 is fixedly connected between a group of rail rods 341, and a connecting rod 343 is fixedly connected to the lower side of the base block 342. A supporting block 345 is slidably connected in the block groove 334. A connecting rope 344 passing through the through hole 335 is fixedly connected between the supporting block 345 and the connecting rod 343. The outer side of the connecting rope 344 is sleeved with a spring 346 located in the block groove 334. The end of the rail rod 341 away from the base block 342 is fixed. A linkage block 347 is connected, and the transmission part 35 includes a sleeve plate 351 sleeved on the outside of the column shell 331, and horizontally arranged tracks 352 are provided on both sides of the sleeve plate 351, and the inner sides of the tracks 352 are slidably connected with track blocks 353, and the upper sides of the track blocks 353 are fixedly connected with guide plates 354 on the upper sides of the sleeve plate 351, and the facing surfaces of a group of guide plates 354 are fixedly connected with push strips 355. A heating furnace 4, a quenching box 5 and a tempering furnace 6 are sequentially arranged horizontally on the right side of the lifting part 25; the inner upper side of the barrel 22 is a flared structure, and this arrangement facilitates the wind power gear billets to enter the barrel 22 one by one for stacking, and the barrel 22 is arranged on the upper side of a group of conveyor belts 216. Through this arrangement, the wind turbine gear billet at the lowermost side of the barrel 22 can be displaced by the conveyor belt 216. The upper sides of the side plates 213 are fixedly connected to the limiting plates 24. Through this arrangement, the forward-moving wind turbine gear billet can be limited and guided to avoid the wind turbine gear billet from deflecting during the forward movement. The facing surfaces of a group of side plates 213 are fixedly connected with pads 217. The upper end surfaces of the pads 217 are in contact with the upper inner wall of the conveyor belt 216. Through this arrangement, the conveyor belt 216 can be supported to avoid the weight of the wind turbine gear billet causing the conveyor belt 216 to deform and move downward;The spacing between a group of support plates 254 is the same, and the button bodies of the contact buttons 256 are all higher than the upper end surfaces of the support plates 254. Through this arrangement, the wind turbine gear billet that moves up to the upper side of the support plate 254 will squeeze the contact button 256, indicating that the wind turbine gear billet is in place. The notches 255 are all set to open to the right. The notches 255 are all set on the lower side of the base column 33. Through this arrangement, the base column 33 can pass through the support plate 254 and can be displaced to the right and moved out of the support plate 254. The inner diameter of the notch 255 is larger than the diameter of the base column 33. Through this arrangement, each group of support blocks 345 can be expanded in the notch 255, so that the support blocks 345 can extend from the block groove 334; the spring 346 is set Between the outer end surface of the support block 345 and the inner wall of the block groove 334, the spring 346 can reset the support block 345 completely retracted into the block groove 334 through this arrangement, the sleeve plate 351 is arranged on the lower side of the linkage block 347, and the inclined surface of the linkage block 347 fits the inclined surface of the guide plate 354. Through this arrangement, the displacement of the guide plate 354 can be transmitted to the linkage block 347. The push bar 355 is an arc-shaped bar structure, and the push bar 355 is arranged on the right side of the sleeve plate 351. Through this arrangement, the pressing of the push bar 355 by the cover part 87 is not affected by the interference of the sleeve plate 351. The upper end protrusion of the transfer frame 31 is slidably connected with the guide rail 13, and the stability of the transfer frame 31 during movement is improved through this arrangement. ;

[0018] like Figure 1 , Figure 14-Figure 23As shown, a storage and heat preservation module 8 is provided on the right side of the tempering furnace 6 and is located at the lower side of the rail of the rail frame 11. The storage and heat preservation module 8 includes a shell 81, a through pipe 82, a driving part 83, an inner partition 84, a shelf plate 85, a base cover 86 and a lift cover part 87. The shell 81 includes a storage shell 811. A rotating groove 812 is provided at the lower side of the storage cavity of the storage shell 811. The lower side of the rotating groove 812 is connected to a pipeline 813. The right side of the rotating groove 812 is connected to a belt path 814. The inner side of the pipeline 813 is fixedly connected to the through pipe 82. The driving part 83 includes a support plate 831 fixed to the right side of the storage shell 811. The upper side of the support plate 831 is connected to the upper side of the storage shell 811. A motor 832 is fixedly connected, and a synchronous wheel 833 is fixedly connected to the end of the output shaft of the motor 832. The outer side of the vertical pipe of the through pipe 82 is rotatably connected to the synchronous wheel 833 in the rotating groove 812. A synchronous belt 834 passing through the belt path 814 is sleeved on the outer side of a group of synchronous wheels 833. The inner partition 84 includes a seat plate 841 fixedly connected to the left synchronous wheel 833. The inner side of the seat plate 841 is provided with an air cavity 842 connected to the through pipe 82. The upper side of the seat plate 841 is fixedly connected to a partition plate 844. The upper side of the air cavity 842 is provided with a plurality of groups of air inlet holes between the partition plates 844. 843, a shelf plate 85 is fixedly connected between each plate of the partition plate 844, a base cover 86 with a left opening is installed on the upper side of the partition plate 844, a flip cover part 87 is installed at the opening of the base cover 86, the flip cover part 87 includes a stand 871 fixedly connected to the inner wall of the opening corner of the base cover 86, a storage groove 872 with a left opening is opened on the inner side of the stand 871, and a flip cover 873 rotatably connected to the stand 871 is arranged on the inner side of the storage groove 872, and the gas delivery part 7 includes a shunt pipe 71 connected to the heating furnace 4 and the tempering furnace 6, and the right end of the shunt pipe 71 is connected to the air pump 72, and the air pump The right side of 72 is connected with an air delivery pipe 73, and the rear side of the right end of the air delivery pipe 73 is connected with a flexible pipe 74. Through this arrangement, the transport module 3 can transport the wind turbine gear billet to be insulated to the storage and insulation module 8 for storage, and the air delivery unit 7 can regularly transport the high-temperature airflow in the heating furnace 4 and the tempering furnace 6 to the storage and insulation module 8, so that the temperature in the storage and insulation module 8 always maintains a temperature suitable for the insulation of the wind turbine gear billet. Through the large storage capacity and insulation capacity of the storage and insulation module 8, the wind turbine gear billet is prevented from occupying the resources of the tempering furnace 6 for a long time, thereby ensuring the overall production progress of the wind turbine gear steel;The inner partition 84 is arranged on the inner side of the storage cavity of the storage shell 811, and the lower end surface of the seat plate 841 is in contact with the lower inner wall of the storage cavity of the storage shell 811. This arrangement improves the stability of the inner partition 84 during rotation. The outer curved surfaces of the seat plate 841 and the partition plate 844 are in contact with the inner curved surface of the storage shell 811. This arrangement can partition the storage cavity of the storage shell 811 to prevent the opening of the base cover 86 from losing heat quickly. Pin blocks are arranged on both sides of the upper part of the storage shell 811, and pin plates are arranged on both sides of the upper part of the base cover 86. The pin blocks of the storage shell 811 are inserted into the pin plates of the base cover 86. This arrangement can locate the opening position of the base cover 86. The inner side of the base cover 86 is provided with a plurality of equilateral The exhaust hole is arranged at an angle, through which the base cover 86 can slowly discharge the gas in the storage chamber of the storage shell 811; the front end of the through pipe 82 protrudes from the storage shell 811, and the rear end of the flexible pipe 74 is sleeved on the outside of the front end of the through pipe 82. Through this arrangement, it is convenient to connect and separate the flexible pipe 74 and the through pipe 82. The upper inner wall of the storage groove 872 is fixedly connected with a damping pad 874, and the lower end surface of the damping pad 874 fits the upper curved surface of the flip cover 873. Through this arrangement, the flip cover 873 can be positioned. The widest part of the flip cover 873 is smaller than the size between a group of steel rails of the rail frame 11. Through this arrangement, the rotation of the flip cover 873 is not affected by the interference of the steel rails of the rail frame 11. ;

[0019] Workflow: The production process of wind turbine gear steel is as follows. Note 1: The electrical appliances in this scheme are all powered by external power, electrically connected to the external control box, and electrically controlled by the external control box; Note 2: The steel billets mentioned below refer to wind turbine gear steel billets; Raw material preparation: First, high-strength, high-toughness and high-hardenability alloy structural steels, such as carburizing steel and quenched and tempered steel, are selected. These materials need to have high purity, high organizational uniformity and good mechanical properties to meet the use requirements of wind turbine gear steel under high load and complex working conditions; Smelting and casting: Use electric arc furnace or converter for preliminary smelting, and then further purify through refining outside the furnace, and finally remove gases and impurities through vacuum degassing or vacuum oxygen decarburization to ensure the purity of the molten steel and complete the smelting; Then, The refined molten steel is cast into ingots or continuous casting billets. During the process, the casting temperature and cooling rate need to be strictly controlled to avoid internal defects and complete the casting; forging and preliminary treatment, forging is one of the key steps in the production of wind turbine gear steel. During the forging process, the ingots or continuous casting billets are heated to an appropriate temperature and then free forged or die forged on the forging equipment to improve the density and mechanical properties of the material and eliminate internal defects; the forged steel parts are preliminarily machined by machine tools to meet the size and shape accuracy required by the wind turbine gear drawings to obtain wind turbine gear billets and complete preliminary treatment; the pre-operation before quenching and tempering, through the external overhead conveyor belt equipment, the wind turbine gear billets are transported one by one to the barrel 22 of the feeding module 2, and the billets pass through the barrel The upper expansion opening of 22 enters and is stacked in the barrel 22, and the motor 215 is started by the control box to drive the rear roller 214 to rotate, and the conveyor belt 216 is driven to move forward in a cycle, pushing the billet at the bottom of the barrel 22 through the discharge port 23. The limit plates 24 on both sides provide guidance for the billet to move toward the back plate 252. When the billet contacts the back plate 252, the contact button 256 on the upper side support plate 254 is squeezed, indicating that the first billet is in place. At this time, the control box controls the back plate 252 and the support plate 254 to move up a set distance through the cylinder 251, and the middle side support plate 254 moves up to replace the original position of the upper side support plate 254. The above operation is repeated, waiting for the next billet to be in place. When the billets on the upper, middle and lower side support plates 254 are all in place, the control box is turned on. The box making stops the conveyor belt 216 from running, and no new steel billets are conveyed. At the same time, the cylinder 251 is further extended and pushed upward, so that each support plate 254 moves upward, and each steel billet is lifted and moved toward the handling module 3, so that the base column 33 passes through the upwardly moved steel billet and the support plate 254. During this period, each group of support blocks 345 performs telescopic movement in each block groove 334, and finally unfolds in the notch 255 of each support plate 254 to lift each steel billet. At this time, the transfer frame 31 is controlled to move right, driving the base column 33 and the supporting part 34 to move, so that each steel billet is separated from the support plate 254 and moves to the right, completing the pre-hoisting operation before quenching and tempering. Through this operation, the quenching and tempering integrated equipment can automatically hoist multiple wind power gear steel billets at intervals, thereby improving the subsequent heat treatment efficiency and ensuring that the steel billets are heated evenly.In the quenching operation, each wind turbine gear steel billet is transported to the top of the heating furnace 4 through the transport module 3. Then, the control box drives the electric push rod 32 to extend, and pushes the base column 33 and the supporting part 34 downward, so that the wind turbine gear steel billet enters the heating furnace 4 with the base column 33 and the supporting part 34. In the heating furnace 4, the steel billet is heated to a critical temperature Ac3 or above Ac1. After the heating is completed, the steel billet is immediately transported to the quenching box 5 through the transport module 3. The quenching liquid in the quenching box 5 is used to quickly cool the steel billet to complete the quenching process. The quenched steel billet will obtain high hardness and high strength, but the internal stress is large, so subsequent tempering treatment is required; tempering and temperature return Operation, through the transport module 3, each wind turbine gear steel billet that has been quenched is transported to the tempering furnace 6 for high-temperature tempering, so that the quenched steel billet is reheated to an appropriate temperature lower than the lower critical temperature Ac1. During the tempering process, martensite decomposes and residual austenite decreases, so that the hardness is reduced and the toughness is improved, and the tempering and temperature recovery operation is completed; tempering and heat preservation operation, through the transport module 3, the wind turbine gear steel billet to be insulated is transported to the top of the opening of the base cover 86, and then the electric push rod 32 is controlled to extend, pushing the base column 33 and the supporting part 34 to move downward, so that the steel billet passes through the base cover 86 and enters the storage shell 811, and ensures that each steel billet is higher than each storage plate of the storage shelf plate 85 (each The extension of the electric push rod 32 is a fixed amount to ensure the position of the steel billet). At this time, the transfer rack 31 is controlled to move rightward, driving the electric push rod 32, the base column 33, the supporting part 34 and the transmission part 35 to move rightward as a whole. The rightward movement of the base column 33 and the supporting part 34 transports each steel billet to the top of each storage plate of the storage shelf plate 85, so that the storage shelf plate 85 supports each steel billet; and the rightward movement of the transmission part 35 causes the push bar 355 to be squeezed by the cover part 87, driving the guide plate 354 to move leftward, and then the linkage block 347, the rail rod 341, the base block 342 and the linkage rod 343 move up in sequence, and the upward movement of the linkage rod 343 drives each group of support blocks 345 through the connecting rope 344 The support blocks 345 are retracted back into the block slots 334, so that each group of support blocks 345 no longer supports the steel billet, and the handling module 3 completes the lifting task. At this time, the electric push rod 32 is controlled to retract, driving the base column 33 to move upward and separate from the steel billet. Subsequently, the driving unit 83 drives the inner partition 84 to rotate 60 degrees, and moves the other idle shelf plates 85 to the opening of the base cover 86, ready to receive the next group of steel billets for heat preservation storage; when there are no idle shelf plates 85 (manual confirmation), it indicates that the storage and insulation module 8 has reached the maximum storage capacity. At this time, the storage and insulation module 8 will no longer receive new steel billets. At this time, the staff can rotate the flip cover 873 to close the opening of the base cover 86 for heat preservation;In order to ensure that the temperature in the storage shell 811 is suitable for heat preservation, the control box will regularly start the vacuum pump 72, and transport the high-temperature gas in the heating furnace 4 and the tempering furnace 6 to the air cavity 842 through the shunt pipe 71, the gas delivery pipe 73, the flexible pipe 74 and the through pipe 82, and then send it into the storage shell 811 through the air inlet 843, and finally discharge it from the exhaust hole of the base cover 86. This process can keep the wind turbine gear billet in the storage shell 811 warm for a long time, and complete the tempering and heat preservation operation; tempering air cooling operation, after the wind turbine gear billet has been kept warm for a long time, the flexible pipe 74 can be separated from the through pipe 82 after the heat preservation is completed, and the storage heat preservation can be stored. The module 8 is moved rightwards out of the rail frame 11 as a whole, and then the base cover 86 is removed to fully open the storage shell 811 to expose the wind turbine gear steel billet stored inside. At this time, the steel billet is placed in the air for natural cooling. This process helps to stabilize the organizational structure of the steel and effectively eliminate internal stress, completing the air cooling operation and the entire tempering operation. In the post-processing operation, the wind turbine gear steel billet after quenching and tempering is subjected to gear grinding and finishing to improve the tooth shape accuracy and surface finish, and then hardness testing, size testing, surface quality testing and metallographic testing are carried out to ensure that it meets the design requirements, thereby completing the production of wind turbine gear steel. ;

[0020] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above are only preferred implementation methods of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A quenching and tempering integrated equipment for producing wind power gear steel, comprising a base frame (1), a feeding module (2), a handling module (3), a heating furnace (4), a quenching box (5), a tempering furnace (6), a gas transmission unit (7) and a storage and heat preservation module (8), characterized in that: The base frame (1) comprises a rail frame (11), the upper side of the rail frame (11) is fixedly connected to a frame (12), the inner side of the frame (12) is provided with a guide rail (13), the left end of the rail frame (11) is provided with a loading module (2), the loading module (2) comprises a feeding part (21) which is partially located inside the rail frame (11), the feeding part (21) comprises a bottom plate (211), four corners of the upper side of the bottom plate (211) are fixedly connected to support rods (212), the upper sides of the left and right support rods (212) are fixedly connected to side plates (213), a group of side plates (213) are rotatably connected to symmetrically arranged rollers (214), the left side of the left side plate (213) is fixedly connected to a motor (215), the output shaft end of the motor (215) is fixedly connected to the rear side roller (214), and the left and right sides of the outer sides of a group of rollers (214) are sleeved with transmission elements. A conveyor belt (216), a barrel (22) located at the rear side of the frame (12) is fixedly connected to the upper side of a set of side plates (213), a discharge port (23) is provided at the front lower part of the barrel (22), a lifting part (25) is installed on the upper side of the bottom plate (211), the lifting part (25) includes a cylinder (251) fixed to the upper side of the bottom plate (211), and a cylinder (251) is fixedly connected to the upper side of a set of conveyor belts (216) ), each mounting opening of the back plate (252) is fixedly connected to a connecting plate (253), the rear side of the connecting plate (253) is fixedly connected to a supporting plate (254), the inner side of each supporting plate (254) is provided with a notch (255), the countersunk hole of each supporting plate (254) is installed with a contact button (256), and the upper side of the rail frame (11) is installed with a transport module (3) located on the upper side of the lifting portion (25).

2. The quenching and tempering integrated equipment for producing wind power gear steel according to claim 1, characterized in that: The transport module (3) comprises a transfer frame (31), an electric push rod (32), a base column (33), a supporting part (34) and a transmission part (35); the transfer frame (31) is arranged on a steel rail at the top of a rail frame (11) via an electric roller; an electric push rod (32) is fixedly connected to an upper opening of the transfer frame (31); a lower driving rod of the electric push rod (32) is fixedly connected to the base column (33); the base column (33) comprises a column shell (331); a middle channel (332) is opened on the inner side of the column shell (331); Through rails (333) are provided on both the front and rear sides of the upper part of the channel (332); a plurality of groups of equally spaced block grooves (334) are provided on the lower outer curved surface of the column shell (331); a group of the block grooves (334) is provided with four block grooves (334) arranged at equal angles; a through hole (335) is connected between the block grooves (334) and the middle channel (332); the supporting portion (34) comprises two rail rods (341) slidably connected to the through rails (333); a group of the rail rods (341) is fixedly connected to a through hole (335) located inside the middle channel (332); A base block (342), a linkage rod (343) is fixedly connected to the lower side of the base block (342), a support block (345) is slidably connected in the block groove (334), a connecting rope (344) passing through the through hole (335) is fixedly connected between the support block (345) and the linkage rod (343), a spring (346) in the block groove (334) is sleeved on the outer side of the connecting rope (344), a linkage block (347) is fixedly connected to one end of the rail rod (341) away from the base block (342), and the transmission part (35) includes The invention comprises a sleeve plate (351) sleeved on the outside of the column shell (331), the sleeve plate (351) is provided with a transversely arranged track (352) on both sides, the inner side of the track (352) is slidably connected with a track block (353), the upper side of the track block (353) is fixedly connected with a guide plate (354) located on the upper side of the sleeve plate (351), and a group of facing surfaces of the guide plates (354) are fixedly connected with a push bar (355), and a heating furnace (4), a quenching box (5) and a tempering furnace (6) are sequentially arranged transversely on the right side of the lifting part (25).

3. The quenching and tempering integrated equipment for producing wind power gear steel according to claim 2, characterized in that: The inner upper side of the barrel (22) is a flared structure. The barrel (22) is arranged on the upper side of a group of conveyor belts (216). The upper sides of the side plates (213) are fixedly connected to the limit plates (24). The facing surfaces of a group of side plates (213) are fixedly connected to pads (217). The upper end surfaces of the pads (217) are in contact with the upper inner wall of the conveyor belt (216).

4. The quenching and tempering integrated equipment for producing wind power gear steel according to claim 2, characterized in that: The spacing between the supporting plates (254) of a group is the same, the button bodies of the contact buttons (256) are all higher than the upper end surfaces of the supporting plates (254), the notches (255) are all opened to the right, the notches (255) are all arranged on the lower side of the base column (33), and the inner diameter of the notches (255) is larger than the diameter of the base column (33).

5. The quenching and tempering integrated equipment for producing wind power gear steel according to claim 2, characterized in that: The spring (346) is arranged between the outer end surface of the support block (345) and the inner wall of the block groove (334); the sleeve plate (351) is arranged on the lower side of the linkage block (347); the inclined surface of the linkage block (347) is in contact with the inclined surface of the guide plate (354); the push bar (355) is an arc-shaped bar structure; the push bar (355) is arranged on the right side of the sleeve plate (351); and the upper end protrusion of the transfer frame (31) is slidably connected to the guide rail (13).

6. The quenching and tempering integrated equipment for producing wind power gear steel according to claim 2, characterized in that: A storage and heat preservation module (8) is arranged on the right side of the tempering furnace (6) and is located below the steel rail of the rail frame (11). The storage and heat preservation module (8) comprises a shell (81), a through pipe (82), a driving part (83), an inner partition (84), a storage shelf plate (85), a base cover (86) and a lift cover part (87). The shell (81) comprises a storage shell (811). A rotation groove (812) is provided on the lower side of the storage cavity of the storage shell (811). The lower side of the rotation groove (812) is connected to a pipeline (813). The right side of the rotation groove (812) is connected to a beltway (814). The pipeline (813) The inner side of the through pipe (82) is fixedly connected to the through pipe (82), the driving part (83) comprises a support plate (831) fixed to the right side of the storage shell (811), the upper side of the support plate (831) is fixedly connected to the motor (832), the end of the output shaft of the motor (832) is fixedly connected to the synchronous wheel (833), the outer side of the vertical pipe of the through pipe (82) is rotatably connected to the synchronous wheel (833) in the rotating groove (812), a group of synchronous belts (834) passing through the belt path (814) are sleeved on the outer side of the synchronous wheel (833), and the inner partition (84) comprises a support plate (831) fixedly connected to the left synchronous wheel (833). A seat plate (841) is connected to the seat plate (841), an air cavity (842) communicating with the through pipe (82) is provided on the inner side of the seat plate (841), a partition plate (844) is fixedly connected to the upper side of the seat plate (841), a plurality of air inlet holes (843) are provided on the upper side of the air cavity (842) and are located between the partition plates (844), a shelf plate (85) is fixedly connected between the partition plates (844), a base cover (86) with a left opening is installed on the upper side of the partition plate (844), a lift cover portion (87) is installed at the opening of the base cover (86), and the lift cover portion (87) The invention comprises a stand (871) fixedly connected to the inner wall at the opening corner of the base cover (86); a storage groove (872) with a left opening is provided on the inner side of the stand (871); a flip cover (873) rotatably connected to the stand (871) is provided on the inner side of the storage groove (872); the gas delivery part (7) comprises a shunt pipe (71) connected to the heating furnace (4) and the tempering furnace (6); the right end of the shunt pipe (71) is connected to an air extraction pump (72); the right side of the air extraction pump (72) is connected to an air delivery pipe (73); and the rear side of the right end of the air delivery pipe (73) is connected to a flexible pipe (74).

7. The quenching and tempering integrated equipment for producing wind power gear steel according to claim 6, characterized in that: The inner partition (84) is arranged on the inner side of the storage cavity of the storage shell (811); the lower end surface of the seat plate (841) is in contact with the lower inner wall of the storage cavity of the storage shell (811); the outer curved surfaces of the seat plate (841) and the partition plate (844) are in contact with the inner curved surface of the storage shell (811); pin blocks are arranged on both sides of the upper part of the storage shell (811); pin plates are arranged on both sides of the upper part of the base cover (86); the pin blocks of the storage shell (811) are inserted into the pin plates of the base cover (86); and a plurality of exhaust holes arranged at equal angles are arranged on the inner side of the base cover (86).

8. The quenching and tempering integrated equipment for producing wind power gear steel according to claim 6, characterized in that: The front end of the through pipe (82) protrudes from the storage shell (811), the rear end of the flexible pipe (74) is sleeved on the outside of the front end of the through pipe (82), the upper inner wall of the storage groove (872) is fixedly connected with a damping pad (874), the lower end surface of the damping pad (874) is in contact with the upper curved surface of the flip cover (873), and the widest part of the flip cover (873) is smaller than the size between a group of steel rails of the rail frame (11).

9. A quenching and tempering integrated equipment for producing wind power gear steel according to any one of claims 1 to 8, wherein the production process is: Step 1: Raw material preparation. First, select high-strength, high-toughness and high-hardenability alloy structural steel, including carburizing steel and quenched and tempered steel. These materials need to have high purity, high structural uniformity and good mechanical properties to meet the use requirements of wind power gear steel under high load and complex working conditions; Step 2: Smelting and casting: Use electric arc furnace or converter for preliminary smelting, then further purify through refining outside the furnace, and finally remove gas and impurities through vacuum degassing or vacuum oxygen decarburization process to ensure the purity of molten steel and complete smelting; then cast the refined molten steel into ingots or continuous casting billets. During the process, the casting temperature and cooling rate need to be strictly controlled to avoid internal defects and complete casting; Step 3: Forging and preliminary treatment. Forging is one of the key steps in the production of wind turbine gear steel. During the forging process, the steel ingot or continuous casting billet is heated to an appropriate temperature and then subjected to free forging or die forging on the forging equipment to improve the density and mechanical properties of the material and eliminate internal defects. The forged steel parts are preliminarily machined by machine tools to meet the size and shape accuracy required by the wind turbine gear drawings, and the wind turbine gear billet is obtained to complete the preliminary treatment. Step 4: Pre-operation before quenching and tempering: The wind turbine gear steel billets are transported one by one to the barrel (22) of the loading module (2) through an external overhead conveyor belt device. The steel billets enter through the upper expansion opening of the barrel (22) and are stacked in the barrel (22). The motor (215) is started through the control box to drive the rear roller (214) to operate, so that the conveyor belt (216) moves forward in a cycle, pushing the steel billet at the bottom of the barrel (22) through the discharge port (23), and the limit plates (216) on both sides are moved forward. 24) provides a guide for the steel billet to move toward the back plate (252). When the steel billet contacts the back plate (252), the contact button (256) on the upper side support plate (254) is pressed, indicating that the first steel billet has been in place. At this time, the control box controls the back plate (252) and the support plate (254) to move up a set distance through the cylinder (251), and the middle side support plate (254) moves up to replace the original position of the upper side support plate (254). Repeat the above operation and wait for When the next billet is in place, when all the billets on the upper, middle and lower side pallets (254) are in place, the control box stops the conveyor belt (216) from running and no new billets are conveyed. At the same time, the cylinder (251) further extends and pushes upward, so that each pallet (254) moves upward, lifts each billet and moves it toward the handling module (3), so that the base column (33) passes through the billet and the pallet (254) that are moving upward. During this period, each group of support blocks (345) performs telescopic movement in each block slot (334). Finally, the steel billets are unfolded in the notches (255) of the supporting plates (254) to lift the steel billets. At this time, the transfer rack (31) is controlled to move rightward, driving the base column (33) and the supporting portion (34) to move, so that the steel billets are separated from the supporting plates (254) and move rightward, completing the pre-lifting operation before quenching and tempering. Through this operation, the quenching and tempering integrated equipment can automatically lift multiple wind power gear steel billets at intervals, thereby improving the subsequent heat treatment efficiency and ensuring that the steel billets are heated evenly. Step 5: quenching operation, through the transport module (3), each wind turbine gear steel billet is transported to the top of the heating furnace (4), and then the control box drives the electric push rod (32) to extend, push the base column (33) and the supporting part (34) downward, so that the wind turbine gear steel billet enters the heating furnace (4) along with the base column (33) and the supporting part (34). In the heating furnace (4), the steel billet is heated to a critical temperature Ac3 or above Ac1. After the heating is completed, the steel billet is immediately transported to the quenching box (5) through the transport module (3), and the quenching liquid in the quenching box (5) is used to quickly cool the steel billet to complete the quenching process. The quenched steel billet will have high hardness and high strength, but the internal stress is large, so subsequent tempering treatment is required; Step 6: Tempering and reheating operation, through the transport module (3), each wind turbine gear steel billet that has been quenched is transported to the tempering furnace (6) for high-temperature tempering, so that the quenched steel billet is reheated to an appropriate temperature below the lower critical temperature Ac1. During the tempering process, martensite decomposes and residual austenite decreases, so that the hardness is reduced and the toughness is improved, and the tempering and reheating operation is completed; Step 7: Tempering and heat preservation operation, the wind turbine gear steel billet to be insulated is transported to the top of the opening of the base cover (86) through the transport module (3), and then the electric push rod (32) is controlled to extend, pushing the base column (33) and the supporting part (34) to move downward, so that the steel billet passes through the base cover (86) and enters the storage shell (811), and ensures that each steel billet is higher than each storage plate of the storage rack plate (85). At this time, the transfer rack (31) is controlled to move to the right, driving the electric push rod (32), the base column (33), the supporting part (34) and the transmission part (35) to move to the right as a whole, and the base column (33) and the supporting part The rightward movement of the transmission part (35) moves each steel billet to the top of each storage plate of the storage shelf plate (85), so that the storage shelf plate (85) supports each steel billet; and the rightward movement of the transmission part (35) causes the push bar (355) to be squeezed by the cover part (87), driving the guide plate (354) to move leftward, thereby causing the linkage block (347), the rail rod (341), the base block (342) and the linkage rod (343) to move upward in sequence. The upward movement of the linkage rod (343) drives each group of support blocks (345) to retract into the block groove (334) through the connecting rope (344), so that each group of support blocks (345) no longer supports the steel billet. The handling module (3) completes the lifting task. At this time, the electric push rod (32) is controlled to retract, driving the base column (33) to move upward and separate from the steel billet. Subsequently, the driving part (83) drives the inner partition (84) to rotate 60 degrees, and moves the other idle storage racks (85) to the opening of the base cover (86) to prepare for receiving the next group of steel billets for heat preservation storage. When there are no idle storage racks (85), it indicates that the storage and heat preservation module (8) has reached the maximum storage capacity. At this time, the storage and heat preservation module (8) will no longer receive new steel billets. At this time, the staff can rotate the flip cover (873) to close the base cover. The opening of (86) is closed for heat preservation; to ensure that the temperature in the storage shell (811) is suitable for heat preservation, the control box will regularly start the vacuum pump (72) to transport the high-temperature gas in the heating furnace (4) and the tempering furnace (6) to the air cavity (842) through the shunt pipe (71), the gas pipe (73), the flexible pipe (74) and the through pipe (82), and then send it into the storage shell (811) through the air inlet (843), and finally discharge it from the exhaust hole of the base cover (86). This process can keep the wind turbine gear billet in the storage shell (811) warm for a long time, completing the tempering and heat preservation operation; Step 8: Tempering and air cooling operation. After the long-term heat preservation of the wind turbine gear steel billet, the flexible pipe (74) and the through pipe (82) can be separated after the heat preservation is completed, and the storage and heat preservation module (8) is moved rightward out of the rail frame (11) as a whole. Then, the base cover (86) is removed, and the storage shell (811) is fully opened to expose the wind turbine gear steel billet stored inside. At this time, the steel billet is placed in the air for natural cooling. This process helps to stabilize the organizational structure of the steel and effectively eliminate internal stress. The air cooling operation is completed, and the entire tempering operation is also completed; Step nine: Post-processing operation, the wind turbine gear steel billet after quenching and tempering is subjected to gear grinding and finishing to improve the tooth shape accuracy and surface finish, and then hardness testing, size testing, surface quality testing and metallographic testing are carried out to ensure that it meets the design requirements, thereby completing the production of wind turbine gear steel.

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