A gear shaft quenching device

Abstract

The present invention relates to the field of quenching technology, and in particular to a gear shaft quenching device, comprising a base, an induction heating device body and a water collecting tank are correspondingly installed on the base, a lifter is installed on the induction heating device body, an induction coil is fixedly installed on the lifter, an annular water sprayer is arranged directly below the induction coil, the annular water sprayer is fixedly connected to the lifter, the annular water sprayer is connected to a quenching liquid supply device, a rotating shaft is rotatably installed on the base on one side of the water collecting tank, the rotating shaft is arranged vertically, a hydraulic rod is fixedly installed on the surface of one side of the rotating shaft, a vertical rod is coaxially fixed on the output end of the hydraulic rod, a clamper is fixedly installed on the end of the vertical rod away from the hydraulic rod, the clamper is used to clamp the gear shaft, and the rotating shaft is connected to a rotating motor. The present invention realizes the horizontal transportation of the gear shaft by using the rotating shaft in conjunction with the clamper, so that the gear shaft can be more conveniently aligned with the induction coil, and has both the functions of exhaust gas treatment and gear shaft purging.

Description

Technical Field

[0001] The invention relates to the technical field of quenching, and in particular to a gear shaft quenching device. Background Art

[0002] During the production process of the gear shaft, the gear shaft needs to be quenched to improve the mechanical properties of the gear shaft. In the prior art, the gear shaft is mainly quenched by an induction quenching device. The induction quenching device has excellent local heating capabilities and is particularly suitable for shaft gears, which only need to be quenched on the surface to improve performance. It can highly concentrate the magnetic field on the surface area of ​​the shaft gear to achieve precise local heating, while having little effect on other parts of the shaft gear (such as internal spokes, hubs, and other parts that do not require quenching). This can ensure that the surface area obtains the desired heating effect and avoid unnecessary heating of the entire shaft gear, thereby reducing deformation, structural changes, and other problems caused by overheating, and helps to maintain the overall dimensional accuracy and mechanical properties of the shaft gear.

[0003] The existing induction quenching device mainly includes an induction heating device, on which an induction coil is arranged, and an annular water sprayer is arranged below the induction coil. When quenching, the gear shaft is inserted between the induction coil and the annular water sprayer from above, and then the gear shaft is clamped and fixed on the lifter. During quenching, the induction heating device energizes the induction coil, and the quenching liquid supply device supplies quenching liquid to the annular water sprayer. The lifter drives the gear shaft to reciprocate along the axial direction, so that the gear shaft will be heated when passing through the induction coil, and the heated part will be washed and cooled by the annular quenching liquid water flow sprayed from the annular water sprayer. During the above quenching process, the gear shaft needs to be manually aligned during the process of clamping and lifting the gear shaft so that the gear shaft can be coaxially distributed with the induction coil. Some gear shafts are large in size and weight, and the gear shaft needs to be moved with the help of lifting equipment during the whole process. The operation takes a long time and is inefficient. In addition, more harmful smoke will be generated during the quenching process of the gear shaft. These harmful smoke drift in the workshop and endanger human health. In addition, in order to improve the cooling performance of the quenching liquid, nitrates, sodium silicate and other substances need to be added to the quenching liquid. After the quenching liquid with these substances is sprayed onto the surface of the gear shaft, if the gear shaft surface is not cleaned in time after quenching is completed, the moisture in the residual quenching liquid on the surface of the gear shaft will evaporate, and these substances will adhere to the surface of the gear shaft, making it difficult to clean and corrosive to the surface of the gear shaft. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art, namely, low efficiency of manual alignment of gear shafts, failure to treat harmful fumes generated during quenching, and quenching liquid residues adhering to the surface of the gear shafts, which are difficult to clean and have a corrosive effect, and to propose a gear shaft quenching device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A gear shaft quenching device is designed, including a base, on which an induction heating device body and a water collecting tank are correspondingly installed, a lifter is installed on the induction heating device body, an induction coil is fixedly installed on the lifter, and the induction coil is electrically connected to the induction heating device body, an annular water sprayer is arranged directly below the induction coil, the annular water sprayer is fixedly connected to the lifter, and the annular water sprayer is connected to a quenching liquid supply device, a rotating shaft is vertically rotated on the base on one side of the water collecting tank, the rotating shaft is vertically arranged, a hydraulic rod is fixedly installed on the surface of one side of the rotating shaft, the hydraulic rod is arranged parallel to the rotating shaft, a vertical rod is coaxially fixed on the output end of the hydraulic rod, a clamp is fixedly installed on the end of the vertical rod away from the hydraulic rod, the clamp is used to clamp the gear shaft, and the rotating shaft is transmission-connected with a rotating motor.

[0006] Preferably, a cover body is coaxially sleeved on the vertical rod above the clamper, a vertical cylinder is coaxially fixed on the cover body, the vertical cylinder is fixedly connected to the rotating shaft, an inner cylinder is coaxially arranged in the vertical cylinder, the bottom end of the inner cylinder is fixedly connected to the vertical cylinder through a blocking ring, a gap is left between the top end of the inner cylinder and the cover body, and a piston is coaxially fixed on the vertical rod in the inner cylinder; The sealing ring is provided with a plurality of air intake holes circumferentially therethrough, each of which is provided with a first one-way valve, the cover body is provided with an air outlet pipe connected to the interior of the vertical cylinder, the air outlet pipe is used to connect to an exhaust gas treatment device, and a second one-way valve is installed in the air outlet pipe.

[0007] Preferably, an air collecting hood is coaxially fixed to the lower part of the vertical cylinder.

[0008] Preferably, a jet ring is coaxially arranged directly below the vertical cylinder, the jet ring is fixedly connected to the vertical cylinder, an annular cavity is coaxially opened in the jet ring, a plurality of jet holes are opened through the inner wall of the jet ring along the circumferential direction, and the annular cavity is connected to an air supply module.

[0009] Preferably, the air supply module includes a gear ring, which is coaxially rotatably connected to the jet ring, and a plurality of inflation tubes are circumferentially arranged on the outer surface of the jet ring, each of the inflation tubes is connected to an air pump, and an intake tube is arranged on the side wall of the air pump, a third one-way valve is installed in the intake tube, and a fourth one-way valve is installed in the inflation tube, and a piston rod is coaxially telescopically installed in each of the air pumps, a micro piston is installed on the piston rod, and a magnetic block is fixed on the piston rod, and a plurality of magnets are circumferentially fixed on the inner wall of the gear ring, and the magnets and the magnetic blocks attract each other.

[0010] Preferably, a gear meshing with the gear ring is provided on one side, a drive shaft is coaxially fixed on the gear, a turbine shell is coaxially provided above the drive shaft, a turbine rotor is installed in the turbine shell, the turbine rotor is coaxially connected to the drive shaft, the turbine shell is fixed on the vertical cylinder, the air inlet of the turbine shell is connected to the outlet pipe, and the air outlet of the turbine shell is connected to the exhaust gas treatment device.

[0011] Preferably, the air outlet direction of the air injection hole is inclined toward the bottom of the air injection ring.

[0012] The gear shaft quenching device proposed by the present invention has the following beneficial effects: By using the rotating shaft and the clamp to realize the horizontal transfer of the gear shaft, the gear shaft can be more conveniently aligned with the induction coil without manual adjustment, which is more efficient. By using the hydraulic rod to push the vertical rod to move, the piston on the vertical rod cooperates with the inner cylinder to achieve compression and stretching of the gas in the entire vertical cylinder, so that before quenching, the vertical rod drives the piston to move downward, so that the air pressure in the vertical cylinder can be kept in a negative pressure state, so that the harmful gas generated during the quenching process can be sucked in through the suction hole. After quenching, the vertical rod drives the piston to move upward, so that the gas in the vertical cylinder can be in a higher pressure state, which is convenient for it to be discharged into the exhaust gas treatment device for harmless treatment; By using the air supply module to fill the annular cavity with gas and then spraying it out from the jet hole, the gear shaft passing through the jet ring is purged to blow the quenching liquid remaining on the surface of the gear shaft downward, making the subsequent cleaning of the gear shaft surface more convenient and also reducing the corrosive effect of the quenching liquid on the gear shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a gear shaft quenching device proposed by the present invention; Figure 2 A schematic diagram of the vertical cylinder structure of a gear shaft quenching device proposed by the present invention Figure 1 ; Figure 3 A schematic diagram of the vertical cylinder structure of a gear shaft quenching device proposed by the present invention Figure 2 ; Figure 4 This is a schematic diagram of the position structure of an air jet ring of a gear shaft quenching device proposed by the present invention; Figure 5 This is a schematic diagram of a vertical cross-sectional structure of a gear shaft quenching device proposed by the present invention; Figure 6 for Figure 5 Schematic diagram of the local structure at A; Figure 7 This is a schematic diagram of the internal structure of a vertical cylinder of a gear shaft quenching device proposed by the present invention; Figure 8 A schematic diagram of the gear ring and gear position structure of a gear shaft quenching device proposed by the present invention; Fig. 9 A schematic diagram of the working state of a gear shaft quenching device proposed by the present invention Figure 1 ; Fig.10 A schematic diagram of the working state of a gear shaft quenching device proposed by the present invention Figure 2 .

[0014] In the figure: 1, base; 2, induction heating equipment body; 3, induction coil; 4, lifter; 5, water collecting trough; 6, annular sprinkler; 7, rotating shaft; 8, cross arm; 9, hydraulic rod; 10, clamp; 11, rotating motor; 12, vertical rod; 13, cover; 14, vertical cylinder; 15, inner cylinder; 16, blocking ring; 17, piston; 18, suction hole; 19, outlet pipe; 20, jet ring; 21, annular cavity; 22, jet hole; 23, inflation pipe; 24, air pump; 25, suction pipe; 26, piston rod; 27, micro piston; 28, magnetic block; 29, gear ring; 30, magnet; 31, gear; 32, drive shaft; 33, turbine shell; 34, air collecting cover; 35, gear shaft workpiece. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] Example 1: Reference Figure 1-Figure 5 , Figure 7 , Figure 9-10A gear shaft quenching device comprises a base 1, on which an induction heating device body 2 and a water collecting tank 5 are correspondingly installed, a lifter 4 is installed on the induction heating device body 2, an induction coil 3 is installed on the lifter 4, the induction coil 3 is electrically connected to the induction heating device body 2, the induction coil 3 is placed above the water collecting tank 5, an annular water sprayer 6 is arranged directly below the induction coil 3, the annular water sprayer 6 is fixedly connected to the lifter 4, the annular water sprayer 6 is connected to a quenching liquid supply device, a rotating shaft 7 is rotatably installed on the base 1 on one side of the water collecting tank 5, the rotating shaft 7 is arranged vertically, and the rotating shaft 7 A cross arm 8 is fixedly installed on the surface of one side, and a hydraulic rod 9 is fixedly installed on the end of the cross arm 8 away from the rotating shaft 7. The hydraulic rod 9 is arranged parallel to the rotating shaft 7. A vertical rod 12 is coaxially fixed on the output end of the hydraulic rod 9. A clamp 10 is fixedly installed on the end of the vertical rod 12 away from the hydraulic rod 9. The clamp 10 is used to clamp the gear shaft. The rotating shaft 7 is connected to a rotating motor 11. The rotating motor 11 is used to rotate the rotating shaft 7, so that the rotating shaft 7 can drive the vertical rod 12 and the clamp 10 to make a circular motion through the cross arm 8 and the hydraulic rod 9. The motion trajectory of the clamp 10 corresponds to the position of the induction coil 3. By using the rotating shaft 7 in conjunction with the clamp 10 to realize the automatic transportation of the gear shaft, the gear shaft can be more conveniently aligned with the induction coil 3, without manual adjustment, and the efficiency is higher.

[0017] A cover body 13 is coaxially sleeved on the vertical rod 12 above the clamp 10, a vertical cylinder 14 is coaxially fixed on the cover body 13, the vertical cylinder 14 is fixedly connected to the rotating shaft 7, an inner cylinder 15 is coaxially arranged in the vertical cylinder 14, the bottom end of the inner cylinder 15 is fixedly connected to the vertical cylinder 14 through a blocking ring 16, a gap is left between the top end of the inner cylinder 15 and the cover body 13, and a piston 17 is coaxially fixed on the vertical rod 12 in the inner cylinder 15; A plurality of air intake holes 18 are provided on the sealing ring 16 along the circumferential direction, and a first one-way valve is installed in each of the air intake holes 18, and the first one-way valve is used to prevent the gas in the vertical cylinder 14 from flowing out through the air intake holes 18; an air outlet pipe 19 connected to the interior of the vertical cylinder 14 is provided on the cover body 13, and the air outlet pipe 19 is used to connect the exhaust gas treatment device, and a second one-way valve is installed in the air outlet pipe 19, and the second one-way valve is used to prevent the outside gas from flowing into the vertical cylinder 14 through the air outlet pipe 19. The aperture of the air intake hole 18 is small, and is controlled within 0.5 mm, so that the flow rate of the outside gas entering the vertical cylinder 14 is small, so that it can suck the outside gas into the vertical cylinder 14 for a long time through the air intake hole 18.

[0018] The function of the above structure is that, in the process of using the hydraulic rod 9 to push the vertical rod 12 to move, the piston 17 on the vertical rod 12 cooperates with the inner cylinder 15 to realize the compression and stretching of the gas in the entire vertical cylinder 14, so that before quenching, the vertical rod 12 drives the piston 17 to move downward, so that the air pressure in the vertical cylinder 14 can be maintained in a negative pressure state, so that the exhaust gas can be sucked in through the suction hole 18. After quenching, the vertical rod 12 drives the piston 17 to move upward, so that the gas in the vertical cylinder 14 can be in a higher pressure state, which is convenient for it to be discharged into the exhaust gas treatment device.

[0019] A gas collecting hood 34 is coaxially fixed to the lower part of the vertical cylinder 14. The gas collecting hood 34 can better guide the exhaust gas to the surrounding of the air suction hole 18.

[0020] Example 2: Reference Figure 6 , Figure 8 As another preferred embodiment of the present invention, the difference from the embodiment 1 is that a jet ring 20 is coaxially arranged directly below the vertical cylinder 14, and the jet ring 20 is fixedly connected to the vertical cylinder 14. An annular cavity 21 is coaxially opened in the jet ring 20, and a plurality of jet holes 22 are opened along the circumferential direction through the inner wall of the jet ring 20. The diameter of the jet hole 22 is small and controlled within 1 mm, so that the gas filled in the annular cavity 21 will not be ejected quickly, and can be ejected continuously for a period of time. The annular cavity 21 is connected to a gas supply module, and the gas supply module is used to fill the annular cavity 21 with gas.

[0021] The function of the above structure is to use the air supply module to fill the annular cavity 21 with gas, and then spray it out from the jet hole 22 to purge the gear shaft passing through the jet ring 20, so as to blow the quenching liquid remaining on the surface of the gear shaft downward, making the subsequent cleaning of the gear shaft surface more convenient, and at the same time reducing the corrosive effect of the quenching liquid on the gear shaft.

[0022] The air supply module includes a plurality of inflatable tubes 23, a plurality of air pumps 24, a plurality of air suction tubes 25, a plurality of piston rods 26, a plurality of micro pistons 27, a plurality of magnetic blocks 28, a gear ring 29, and a plurality of magnets 30. A gear ring 29 is coaxially sleeved on the jet ring 20, and the gear ring 29 is coaxially rotatably connected with the jet ring 20. A plurality of inflatable tubes 23 connected with the annular cavity 21 are circumferentially arranged on the outer surface of the jet ring 20, and each inflatable tube 23 is connected with an air pump 24, and an air suction tube 25 connected with the inside of the air pump 24 is arranged on the side wall of the air pump 24. A third one-way valve is installed in the suction pipe 25, and the third one-way valve is used to prevent the gas in the air pump 24 from flowing out through the suction pipe 25. A fourth one-way valve is installed in the inflation pipe 23, and the fourth one-way valve is used to prevent external gas from entering the air pump 24 through the inflation pipe 23. A piston rod 26 is coaxially telescopically installed in each air pump 24, and a micro piston 27 is installed on the piston rod 26. A magnetic block 28 is fixed on the piston rod 26, and a plurality of magnets 30 are fixed on the inner wall of the gear ring 29 along the circumferential direction, and the magnet 30 and the magnetic block 28 attract each other.

[0023] When the air supply module is in use, when the gear ring 29 is rotated, the gear ring 29 drives the multiple magnets 30 to make circular motions. Whenever a magnet 30 is aligned with a magnetic block 28 and then staggered, the magnetic force between the two will drive the piston rod 26 and the micro piston 27 to move back and forth in the air pump 24, so that the air pump can continuously inhale gas through the suction pipe 25, and then fill the gas into the annular cavity 21 through the inflation pipe 23. This is repeated continuously, so that the gas in the annular cavity 21 can maintain a high pressure state. The whole process does not require an air compressor, and the structure is simpler and more reliable.

[0024] A gear 31 meshing with the gear ring 29 is provided on one side, a drive shaft 32 is coaxially fixed on the gear 31, a turbine shell 33 is coaxially provided above the drive shaft 32, a turbine rotor is installed in the turbine shell 33, the turbine rotor is coaxially connected to the drive shaft 32, the turbine shell 33 is fixed on the vertical cylinder 14, the air inlet of the turbine shell 33 is connected to the outlet pipe 19, and the air outlet of the turbine shell 33 is connected to the exhaust gas treatment device.

[0025] The function of the above structure is to utilize the turbine rotor in the turbine shell 33 and the high-pressure exhaust gas distributed in the exhaust pipe 19 as a power source to drive the turbine rotor to rotate. The turbine rotor drives the drive shaft 32 to rotate, so that the drive shaft 32 drives the gear 31 to rotate, so that the gear 31 can drive the gear ring 29 to rotate, so that the gas energy discharged from the vertical cylinder 14 can be effectively utilized.

[0026] The air outlet direction of the air injection hole 22 is inclined downwardly of the air injection ring 20 .

[0027] The overall workflow of the present invention is as follows: As attached Figure 9-10 As shown, the gear shaft workpiece 35 is clamped vertically by the clamp 10, and at this time, the hydraulic rod 9 is controlled to drive the vertical rod 12 to move upward, so that the vertical rod 12 drives the clamp 10 to move upward, and finally the clamp 10 drives the gear shaft workpiece 35 thereon to enter the inner cylinder 15; then the rotating motor 11 is started, and the rotating motor 11 drives the rotating shaft 7 to rotate, so that the rotating shaft 7 drives the vertical cylinder 14 to rotate to just above the induction coil 3; then the hydraulic rod 9 is started again, and the hydraulic rod 9 pushes the vertical rod 12 and the clamp 10 to descend, and the gear shaft workpiece 35 on the clamp 10 descends coaxially until the gear shaft workpiece 35 extends into the induction coil 3 and the annular sprinkler 6; then The lifting device 4 is controlled to drive the induction coil 3 and the annular water sprayer 6 to move up and down, and the induction heating device body 2 is started to energize the induction coil 3, and the quenching liquid supply device supplies quenching liquid to the annular water sprayer 6, so that the induction coil 3 can electrically heat the surface of the gear shaft workpiece 35, and the quenching liquid sprayed by the annular water sprayer 6 can quickly cool the gear shaft workpiece 35; after the quenching is completed, the hydraulic rod 9 is controlled to drive the vertical rod 12 and the clamp 10 to reset, so that the gear shaft workpiece 35 is retracted into the vertical cylinder 14, and then the rotating motor 11 is started, and the rotating motor 11 drives the rotating shaft 7 to reset, so that the quenching of the gear shaft workpiece 35 is completed; In the above process, when the gear shaft workpiece 35 is extended into the induction coil 3 and the annular sprinkler 6, the vertical rod 12 will drive the piston 17 thereon to move downward. During the downward movement of the piston 17, the gas in the cavity formed by the inner cylinder 15 and the vertical cylinder 14 will be in a negative pressure state. In this way, during the quenching of the gear shaft workpiece 35, the harmful gas generated will be gathered by the gas collecting hood 34 and then sucked into the cavity formed by the inner cylinder 15 and the vertical cylinder 14 through the suction hole 18 until the cavity finally presents a positive pressure state; when the quenching is completed, during the resetting of the gear shaft workpiece 35, the vertical rod 12 will drive the piston 17 to move upward, which will cause the space in the cavity to be compressed, and the harmful gas sucked inside will be in a high-pressure state and slowly ejected through the outlet pipe 19. The ejected harmful gas will enter the turbine shell 33, drive the turbine rotor in the turbine shell 33 to rotate, and finally enter the harmful gas through the outlet of the turbine shell 33. In the gas processing equipment, the rotating turbine rotor will drive the drive shaft 32 to rotate, the drive shaft 32 drives the gear 31 to rotate, the gear 31 drives the gear ring 29 to rotate, and the gear ring 29 drives multiple magnets 30 to do circular motion. Whenever a magnet 30 is aligned with a magnetic block 28 and then staggered, the magnetic force between the two will drive the piston rod 26 and the piston 17 to move back and forth in the air pump 24, so that the air pump can continuously inhale gas through the suction pipe 25, and then fill the gas into the annular cavity 21 through the inflation pipe 23. This is repeated continuously, so that the gas in the annular cavity 21 can maintain a high pressure state. The high-pressure gas in the annular cavity 21 will be ejected in a ring shape through the multiple injection holes 22 on the injection ring 20. In this way, when the gear shaft workpiece 35 is reset upward, when passing through the injection ring 20, the ejected high-pressure gas will blow down the quenching liquid remaining on the surface of the gear shaft workpiece 35.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gear shaft quenching device, comprising a base (1), on which an induction heating device body (2) and a water collecting tank (5) are correspondingly mounted, characterized in that: A lifter (4) is installed on the induction heating device body (2), an induction coil (3) is fixedly installed on the lifter (4), the induction coil (3) is electrically connected to the induction heating device body (2), an annular water sprayer (6) is arranged directly below the induction coil (3), the annular water sprayer (6) is fixedly connected to the lifter (4), the annular water sprayer (6) is connected to a quenching liquid supply device, a rotating shaft (7) is vertically rotatably installed on the base (1) on one side of the water collecting tank (5), a hydraulic rod (9) is fixedly installed on the surface of one side of the rotating shaft (7), the hydraulic rod (9) is arranged parallel to the rotating shaft (7), a vertical rod (12) is coaxially fixed on the output end of the hydraulic rod (9), a clamp (10) is fixedly installed on the end of the vertical rod (12) away from the hydraulic rod (9), the clamp (10) is used to clamp the gear shaft, and the rotating shaft (7) is drivingly connected to a rotating motor (11).

2. The gear shaft quenching device according to claim 1, characterized in that: A cover body (13) is coaxially sleeved on the vertical rod (12) above the clamp (10), a vertical cylinder (14) is coaxially fixed on the cover body (13), the vertical cylinder (14) is fixedly connected to the rotating shaft (7), an inner cylinder (15) is coaxially arranged inside the vertical cylinder (14), the bottom end of the inner cylinder (15) is fixedly connected to the vertical cylinder (14) via a sealing ring (16), a gap is left between the top end of the inner cylinder (15) and the cover body (13), and a piston (17) is coaxially fixed on the vertical rod (12) in the inner cylinder (15); The sealing ring (16) is provided with a plurality of air intake holes (18) extending through the circumference thereof, each of the air intake holes (18) being provided with a first one-way valve, the cover body (13) being provided with an air outlet pipe (19) communicating with the interior of the vertical cylinder (14), the air outlet pipe (19) being used to connect to an exhaust gas treatment device, and a second one-way valve being provided in the air outlet pipe (19).

3. The gear shaft quenching device according to claim 2, characterized in that: An air collecting hood (34) is coaxially fixed to the lower part of the vertical cylinder (14).

4. The gear shaft quenching device according to claim 2, characterized in that: A jet ring (20) is coaxially fixed to the lower part of the vertical cylinder (14), the jet ring (20) being fixedly connected to the vertical cylinder (14), an annular cavity (21) being coaxially provided in the jet ring (20), a plurality of jet holes (22) being circumferentially penetrated through the inner wall of the jet ring (20), and the annular cavity (21) being connected to an air supply module.

5. The gear shaft quenching device according to claim 4, characterized in that: The air supply module comprises a gear ring (29) which is coaxially rotatably connected to an air jet ring (20). A plurality of air charging tubes (23) are circumferentially arranged on the outer surface of the air jet ring (20). Each of the air charging tubes (23) is connected to an air pump (24). An air suction tube (25) is arranged on the side wall of the air pump (24). A third one-way valve is installed in the air suction tube (25). A fourth one-way valve is installed in the air charging tube (23). A piston rod (26) is coaxially telescopically installed in each of the air pumps (24). A micro piston (27) is installed on the piston rod (26). A magnetic attraction block (28) is fixed on the piston rod (26). A plurality of magnets (30) are circumferentially fixed on the inner wall of the gear ring (29). The magnets (30) and the magnetic attraction block (28) attract each other.

6. The gear shaft quenching device according to claim 5, characterized in that: A gear (31) meshing with the gear ring (29) is disposed on one side thereof, a drive shaft (32) being coaxially fixed to the gear (31), a turbine shell (33) being coaxially disposed above the drive shaft (32), a turbine rotor being mounted in the turbine shell (33), the turbine rotor being coaxially connected to the drive shaft (32), the turbine shell (33) being fixed to the vertical cylinder (14), an air inlet of the turbine shell (33) being connected to an air outlet pipe (19), and an air outlet of the turbine shell (33) being connected to an exhaust gas treatment device.

7. The gear shaft quenching device according to claim 4, characterized in that: The air outlet direction of the air injection hole (22) is arranged to be inclined toward the bottom of the air injection ring (20).

Images