CN115094202A

CN115094202A - High-frequency induction hardening process for turbine blade

Info

Publication number: CN115094202A
Application number: CN202210823122.5A
Authority: CN
Inventors: 王生宏; 张永同; 张林高; 王卫东; 张晓春
Original assignee: Nantong Jiyu Machinery Technology Co ltd
Current assignee: Nantong Jiyu Machinery Technology Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-09-23

Abstract

The invention discloses a high-frequency induction hardening process for a turbine blade, which comprises two groups of supporting legs, wherein a supporting table is arranged at the top of one side, close to each other, of the two groups of supporting legs; the four groups of clamping mechanisms are arranged in the annular frame body, so that different processes can be simultaneously carried out when the blades are quenched, the blades can be sequentially moved to the working area of the induction coil through the rotation of the annular frame body, the quenching and loading processes can be simultaneously carried out when the blades are heated, the working efficiency of a quenching device can be ensured, and the quenching device can be used for quenching operation on large-batch blades.

Description

High-frequency induction hardening process for turbine blade

Technical Field

The invention relates to the technical field of quench hardening devices, in particular to a high-frequency induction quench hardening process for a turbine blade.

Background

The turbine blade is an important part which is arranged on a turbine rotor and generates torque under the action of high-temperature and high-pressure steam to enable the turbine rotor to rotate at a high speed, and the blade is generally required to be subjected to a quenching process in the production of the turbine blade so as to ensure the hardness of the blade, and a quenching hardening device is required.

The existing quenching and hardening device has certain defects;

1. the current fire-rubbing hardening device usually has only a single working position and can only quench and harden blades singly, so that the quenching and hardening device has relatively high working efficiency underground and cannot cope with large-batch blade quenching procedures;

2. after quenching and hardening are finished, the blade needs to be manually taken down, the interior of the quenched blade still has heat of a long-flow part, the heat in the interior of the blade is taken down manually, operators feel uncomfortable, and the quenching device is in a stop state while the blade is taken down, so that the working efficiency is further reduced;

3. when the cooling water for quenching the blade is quenched for a long time, the water temperature can be increased rapidly, so that the temperature difference between the heated blade and the water is reduced, and the quenching quality of the blade is deteriorated during quenching.

Disclosure of Invention

The invention aims to provide a high-frequency induction hardening device and a high-frequency induction hardening process for a steam turbine blade, which aim to solve the related problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the high-frequency induction quenching hardening device for the turbine blades comprises supporting legs, wherein two groups of supporting legs are arranged, a supporting table is arranged at the top of one side, close to each other, of the two groups of supporting legs, an annular groove is formed in the inner side of the supporting table, an annular sliding block is arranged in the annular groove in a sliding mode, an annular frame is arranged on the inner side of the annular sliding block, four groups of clamping mechanisms are arranged at the top of the inner side of the annular frame, two groups of supporting legs are arranged at one side, close to each other, of the top of the cooling groove and the top of the quenching box respectively, a second water pump is arranged at one side, close to each other, of the bottom of the cooling groove and the bottom of the quenching box, a first water pump is arranged at one side, close to each other, of the inner part of the cooling groove is provided with a cooling pipe, one side of the top of the supporting table is provided with an electric push rod, and the output end of the electric push rod is provided with a quenching machine, the output of quenching machine is provided with induction coil, the opposite side at brace table top is provided with the arc rack, the top in the annular framework outside is provided with annular rack, the both ends at annular framework top are provided with driving motor, driving motor's output all is provided with drive gear.

Preferably, fixture includes mounting panel, slide bar, fixed plate, spring, logical groove, grip block, spout, driven gear, pivot and stripper bar, the mounting panel is provided with four groups and is located the inboard top of annular frame body, one side at mounting panel top is rotated and is provided with the pivot, pivot top and bottom are provided with driven gear and stripper bar respectively, the intermediate position department of mounting panel bottom is provided with automatic release mechanism, the spout has been seted up at the inside both ends of mounting panel, the inside slip of spout is provided with the slide bar, and is two sets of the one end that the slide bar is close to each other is provided with the grip block, the both ends at mounting panel top are provided with the fixed plate, and are two sets of the both sides that the fixed plate is close to one end each other are provided with the spring.

Preferably, the automatic release mechanism comprises a connecting sliding groove, a connecting sliding rod, a trapezoidal block and a hinge rod, the connecting sliding groove is located in the middle of the bottom of the mounting plate, the trapezoidal block is arranged inside the connecting sliding groove in a sliding mode, and two groups of hinge rods are hinged to one side of the trapezoidal block.

Preferably, the bottom of the sliding rod extends out of the inside of the sliding groove, and the bottom of the sliding rod is hinged with the hinge rod.

Preferably, the cross sections of the connecting sliding chute and the connecting sliding rod are T-shaped, and the connecting sliding chute and the connecting sliding rod slide mutually.

Preferably, the driven gear and the arc-shaped rack are positioned at the same horizontal height, and the driven gear and the arc-shaped rack are meshed with each other.

Preferably, the top outside the sliding rod is provided with a limiting block, and the limiting block is positioned above the sliding groove.

Preferably, a reinforcing plate is arranged on one side, away from each other, of the bottom of the quenching box and the cooling groove, and the reinforcing plate is fixedly connected with one side of the supporting leg.

Preferably, the trapezoid block is trapezoidal, and the inclined edges of the extrusion rod and the trapezoid block slide mutually.

The use process of the high-frequency induction hardening device for the turbine blade comprises the following use steps:

the method comprises the following steps: firstly, separating two groups of clamping plates to a position far away from each other, vertically placing a turbine blade to be quenched between the two groups of clamping plates, clamping and fixing the blade by the two groups of clamping plates under the elastic force of four groups of springs, driving two groups of driving gears to rotate by opening a driving motor at the moment, simultaneously rotating the driving gears and an annular rack which drives meshing, driving an annular frame body to rotate in a supporting table by the annular rack, and driving the turbine blade to be transmitted to a working area;

step two: at the moment, the turbine blade is driven to be below the induction coil by the annular frame body, and at the moment, the electric push rod works to drive the induction coil and the quenching machine to move downwards, so that the induction coil completely moves to the outer side of the turbine blade, wraps the turbine blade and rapidly heats the blade;

step three: the heated turbine blade continues to move, when the blade moves to the arc-shaped rack, the driven gear is in contact with the arc-shaped rack at the moment, so that the driven gear rotates, the driven gear drives the extrusion rod to rotate through the rotating shaft, the extrusion rod is in contact with the inclined edge of the trapezoidal block, the trapezoidal block is pushed to move towards the position far away from the extrusion rod, the two groups of hinged rods push the sliding rods to slide in the sliding grooves and be far away from each other, at the moment, the two groups of clamping plates are far away from each other to release clamping of the blade, and the blade falls into the quenching box through the through groove to be quenched;

step four: the first water pump and the second water pump work simultaneously when quenching, the second water pump shifts the hot water in the quenching box to the inside of the cooling tank, the cooling pipe in the cooling tank cools the hot water transferred by the cooling tank, and the first water pump shifts the cold water in the cooling tank to the inside of the quenching box, so that the water temperature of the quenching in the quenching box is always kept in a certain range, and the quenching quality is ensured.

Compared with the prior art, the invention provides a high-frequency induction quenching hardening device for a steam turbine blade, which has the following beneficial effects:

1. the four groups of clamping mechanisms are arranged in the annular frame body, so that different processes can be simultaneously carried out when the blades are quenched, the blades can be sequentially moved to the working area of the induction coil through the rotation of the annular frame body, the quenching and loading processes can be simultaneously carried out when the blades are heated, the working efficiency of a quenching device can be ensured, and the quenching device can be used for quenching operation on large-batch blades.

2. According to the invention, after the blades are heated, the blades are transferred to the upper part of the quenching box through the movement of the annular frame body, the driven gear drives the extrusion rod to rotate through the rotating shaft through the mutual meshing of the driven gear and the arc-shaped rack, the extrusion rod pushes the trapezoidal block to move towards the through groove, the sliding rod is pushed to slide in the sliding groove through the two groups of hinged rods, the clamping plates are driven to be away from each other to release the clamping of the blades, and the blades enter the inside of the quenching box through the through groove for quenching.

3. According to the invention, through the mutual matching of the first water pump and the second water pump, water in the quenching tank can be transferred to the inside of the cooling tank for cooling, and then cold water in the cooling tank is transferred to the inside of the quenching tank through the first water pump, so that the water in the quenching tank is always kept in a certain range.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a top view of the support table of the present invention;

FIG. 4 is a top view of the clamping mechanism of the present invention;

FIG. 5 is a bottom view of the automatic release mechanism of the present invention;

fig. 6 is a front cross-sectional view of the clamping mechanism of the present invention.

In the figure: 1. supporting legs; 2. a clamping mechanism; 201. mounting a plate; 202. a slide bar; 203. a fixing plate; 204. a spring; 205. a through groove; 206. a clamping plate; 207. a chute; 208. a driven gear; 209. a rotating shaft; 210. an extrusion stem; 3. an automatic release mechanism; 301. connecting the sliding chute; 302. connecting a sliding rod; 303. a trapezoidal block; 304. a hinged lever; 4. an arc-shaped rack; 5. an annular frame body; 6. an annular slider; 7. an induction coil; 8. a quenching machine; 9. an electric push rod; 10. an annular groove; 11. a refrigeration pipe; 12. a cooling tank; 13. a first water pump; 14. a second water pump; 15. a quenching box; 16. a support table; 17. a drive motor; 18. a drive gear; 19. an annular rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides the following technical solutions: a high-frequency induction quenching hardening device for turbine blades comprises support legs 1, wherein two groups of support legs 1 are arranged, a support table 16 is arranged at the top of one side, close to each other, of each group of support legs 1, an annular groove 10 is formed in the inner side of the support table 16, an annular slide block 6 is arranged in the annular groove 10 in a sliding mode, an annular frame body 5 is arranged on the inner side of the annular slide block 6, four groups of clamping mechanisms 2 are arranged at the top of the inner side of the annular frame body 5, a cooling groove 12 and a quenching box 15 are respectively arranged at one side, close to each other, of each group of support legs 1, a second water pump 14 is arranged at one side, close to each other, of the tops of the cooling groove 12 and the quenching box 15, a first water pump 13 is arranged at one side, close to each other, a cooling pipe 11 is arranged at one side, close to the top of the support table 16, an electric push rod 9 is arranged at one side of the output end of the electric push rod 9, a quenching machine 8 is arranged, an induction coil 7 is arranged at the output end of the quenching machine 8, an arc-shaped rack 4 is arranged on the other side of the top of the supporting platform 16, an annular rack 19 is arranged at the top of the outer side of the annular frame body 5, driving motors 17 are arranged at two ends of the top of the annular frame body 5, and driving gears 18 are arranged at the output ends of the driving motors 17.

As a preferable embodiment of the present embodiment: fixture 2 includes mounting panel 201, slide bar 202, fixed plate 203, spring 204, lead to groove 205, grip block 206, spout 207, driven gear 208, pivot 209 and extrusion stem 210, mounting panel 201 is provided with four groups and is located the inboard top of annular frame 5, one side rotation at mounting panel 201 top is provided with pivot 209, pivot 209 top and bottom are provided with driven gear 208 and extrusion stem 210 respectively, the intermediate position department of mounting panel 201 bottom is provided with automatic canceling mechanism 3, spout 207 has been seted up at the inside both ends of mounting panel 201, the inside slip of spout 207 is provided with slide bar 202, the one end that two groups of slide bar 202 are close to each other is provided with grip block 206, the both ends at mounting panel 201 top are provided with fixed plate 203, the both sides that two groups of fixed plate 203 are close to one end each other are provided with spring 204, can install the blade fast.

As a preferable aspect of the present embodiment: the automatic release mechanism 3 comprises a connecting sliding groove 301, a connecting sliding rod 302, a trapezoid block 303 and hinge rods 304, wherein the connecting sliding groove 301 is located in the middle of the bottom of the mounting plate 201, the trapezoid block 303 is arranged inside the connecting sliding groove 301 in a sliding mode, and two groups of hinge rods 304 are hinged to one side of the trapezoid block 303.

As a preferable aspect of the present embodiment: the bottom of the sliding rod 202 extends out of the inside of the sliding slot 207, and the bottom of the sliding rod 202 is hinged with the hinge rod 304, so that the vane can fall down automatically.

As a preferable embodiment of the present embodiment: the cross sections of the connecting sliding chute 301 and the connecting sliding rod 302 are T-shaped, and the connecting sliding chute 301 and the connecting sliding rod 302 slide with each other to prevent the connecting sliding rod 302 from falling off.

As a preferable aspect of the present embodiment: the driven gear 208 is located at the same level as the arc-shaped rack 4, and the driven gear 208 is engaged with the arc-shaped rack 4, so that the driven gear 208 is in contact with the arc-shaped rack 4, and the driven gear 208 rotates.

As a preferable embodiment of the present embodiment: the top outside the sliding rod 202 is provided with a limiting block, and the limiting block is located above the sliding groove 207 to prevent the sliding rod 202 from moving up and down.

As a preferable embodiment of the present embodiment: the reinforcing plate is arranged at one side, away from each other, of the bottoms of the quenching box 15 and the cooling tank 12, and is fixedly connected with one side of the supporting leg 1, so that the quenching box 15 and the cooling tank 12 are installed more firmly.

As a preferable embodiment of the present embodiment: the trapezoidal piece 303 is trapezoidal, and the extrusion pole 210 slides with trapezoidal piece 303 hypotenuse each other, is convenient for extrude trapezoidal piece 303.

the method comprises the following steps: firstly, separating two groups of clamping plates 206 away from each other, vertically placing the turbine blades to be quenched between the two groups of clamping plates 206, clamping and fixing the blades by the two groups of clamping plates 206 under the elastic force of four groups of springs 204, driving two groups of driving gears 18 to rotate by opening a driving motor 17 at the moment, simultaneously rotating the driving gears 18 and an annular rack 19 which drives the annular frame body 5 to rotate in a supporting platform 16, and driving the turbine blades to be transmitted to a working area;

step two: at the moment, the turbine blade is driven to the lower part of the induction coil 7 by the annular frame body 5, and at the moment, the electric push rod 9 works to drive the induction coil 7 and the quenching machine 8 to move downwards, so that the induction coil 7 completely moves to the outer side of the turbine blade, wraps the turbine blade and rapidly heats the blade;

step three: the heated turbine blade continues to move, when the heated turbine blade moves to the arc-shaped rack 4, the driven gear 208 is in contact with the arc-shaped rack 4 at the moment, so that the driven gear 208 rotates, the driven gear 208 drives the extrusion rod 210 to rotate through the rotating shaft 209, the extrusion rod 210 is in contact with the inclined edge of the trapezoidal block 303, the trapezoidal block 303 is pushed to move away from the extrusion rod 210, the two groups of hinged rods 304 push the sliding rods 202 to slide in the sliding grooves 207 and to be away from each other, and at the moment, the two groups of clamping plates 206 are away from each other to release clamping of the blade, so that the blade falls into the quenching box 15 through the through groove 205 to be quenched;

step four: the first water pump 13 and the second water pump 14 work simultaneously when quenching, the second water pump 14 transfers hot water inside the quenching box 15 to the inside of the cooling tank 12, the refrigerating pipe 11 inside the cooling tank 12 cools down the hot water transferred from the cooling tank 12, and the first water pump 13 transfers cold water inside the cooling tank 12 to the inside of the quenching box 15, so that the water temperature of quenching inside the quenching box 15 is always kept in a certain range, and the quenching quality is ensured.

Example 1: as shown in fig. 1, 4 and 6, the two sets of clamping plates 206 are separated away from each other, the turbine blade to be quenched is placed vertically between the two sets of clamping plates 206, under the elastic force of the four groups of springs 204, the two groups of clamping plates 206 clamp and fix the blades, at the moment, the driving motor 17 is turned on to drive the two groups of driving gears 18 to rotate, the driving gears 18 simultaneously rotate with the annular rack 19 which drives the meshing, the annular rack 19 drives the annular frame body 5 to rotate in the supporting platform 16 to drive the turbine blades to be transmitted to a working area, at the moment, the turbine blades are driven to the lower part of the induction coil 7 by the annular frame body 5, at the moment, the electric push rod 9 works to drive the induction coil 7 and the quenching machine 8 to move downwards, the induction coil 7 is completely moved to the outer side of the turbine blade, the outer side of the turbine blade is wrapped, the blade is rapidly heated, and the heated turbine blade continues to move.

Example 2: as shown in fig. 1, 5 and 6, when the blade moves to the arc-shaped rack 4, the driven gear 208 and the arc-shaped rack 4 contact each other at this time, so that the driven gear 208 rotates, the driven gear 208 drives the extrusion rod 210 to rotate through the rotating shaft 209, the extrusion rod 210 contacts with the inclined edge of the trapezoidal block 303, the trapezoidal block 303 is pushed to move away from the extrusion rod 210, so that the two sets of hinge rods 304 push the sliding rods 202 to slide inside the sliding grooves 207 and to move away from each other, and at this time, the two sets of clamping plates 206 move away from each other to release the clamping of the blade, so that the blade falls into the inside of the quenching box 15 through the through groove 205 for quenching.

The working principle is as follows: firstly, two groups of clamping plates 206 are separated to the positions far away from each other, a turbine blade to be quenched is vertically placed between the two groups of clamping plates 206, under the elastic force of four groups of springs 204, the two groups of clamping plates 206 clamp and fix the blade, at the moment, a driving motor 17 is turned on to drive two groups of driving gears 18 to rotate, the driving gears 18 simultaneously rotate with annular racks 19 which drive meshing, the annular racks 19 drive the annular frame body 5 to rotate inside a supporting platform 16 to drive the turbine blade to be transmitted to a working area, at the moment, the turbine blade is driven to the lower part of an induction coil 7 by the annular frame body 5, at the moment, an electric push rod 9 works to drive the induction coil 7 and a quenching machine 8 to move downwards, so that the induction coil 7 completely moves to the outer side of the turbine blade, wraps the turbine blade, rapidly heats the blade, and the heated turbine blade continues to move, when the quenching machine moves to the arc-shaped rack 4, the driven gear 208 and the arc-shaped rack 4 are in contact with each other at the moment, so that the driven gear 208 rotates, the driven gear 208 drives the extrusion rod 210 to rotate through the rotating shaft 209, the extrusion rod 210 is in bevel edge contact with the trapezoidal block 303, the trapezoidal block 303 is pushed to move away from the extrusion rod 210, so that the two groups of hinged rods 304 push the sliding rods 202 to slide in the sliding grooves 207 and to move away from each other, at the moment, the two groups of clamping plates 206 move away from each other to release clamping on the blades, so that the blades fall into the quenching box 15 through the through grooves 205 for quenching, the first water pump 13 and the second water pump 14 work simultaneously during quenching, the second water pump 14 transfers hot water in the quenching box 15 into the cooling tank 12, the cooling pipe 11 in the cooling tank 12 cools the hot water transferred from the cooling tank 12, and the first water pump 13 transfers cold water in the cooling tank 12 into the quenching box 15, the water temperature of quenching inside the quenching box 15 is always kept within a certain range, and the quenching quality is ensured.

Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. Steam turbine blade high frequency induction hardening device, including supporting leg (1), its characterized in that: the supporting legs (1) are provided with two groups, two groups of supporting legs (1) are provided with supporting platforms (16) at the tops close to one side each other, annular grooves (10) are formed in the inner sides of the supporting platforms (16), annular sliders (6) are slidably arranged in the inner portions of the annular grooves (10), annular frames (5) are arranged on the inner sides of the annular sliders (6), four groups of clamping mechanisms (2) are arranged at the tops of the inner sides of the annular frames (5), two groups of supporting legs (1) are provided with cooling tanks (12) and quenching boxes (15) at one sides close to each other, second water pumps (14) are arranged at one sides close to each other at the tops of the cooling tanks (12) and the quenching boxes (15), first water pumps (13) are arranged at one sides close to each other at the bottoms of the cooling tanks (12) and the bottoms of the quenching boxes (15), and cooling pipes (11) are arranged at one side of the inner portions of the cooling tanks (12), one side at brace table (16) top is provided with electric putter (9), the output of electric putter (9) is provided with quenches quick-witted (8), the output of quenching machine (8) is provided with induction coil (7), the opposite side at brace table (16) top is provided with arc rack (4), the top in the annular frame body (5) outside is provided with annular rack (19), the both ends at annular frame body (5) top are provided with driving motor (17), the output of driving motor (17) all is provided with drive gear (18).

2. The high-frequency induction hardening apparatus of a steam turbine blade according to claim 1, characterized in that: the clamping mechanism (2) comprises a mounting plate (201), sliding rods (202), a fixing plate (203), springs (204), a through groove (205), a clamping plate (206), a sliding groove (207), a driven gear (208), a rotating shaft (209) and extrusion rods (210), wherein the mounting plate (201) is provided with four groups of tops located on the inner side of the annular frame body (5), the rotating shaft (209) is rotatably arranged on one side of the top of the mounting plate (201), the driven gear (208) and the extrusion rods (210) are respectively arranged on the top and the bottom of the rotating shaft (209), an automatic releasing mechanism (3) is arranged at the middle position of the bottom of the mounting plate (201), the sliding groove (207) is formed in two ends of the inside of the mounting plate (201), the sliding rods (202) are slidably arranged in the sliding groove (207), and the clamping plate (206) is arranged at one end of the two groups of the sliding rods (202) close to each other, the two ends at the top of the mounting plate (201) are provided with fixing plates (203), and two groups of fixing plates (203) are provided with springs (204) at two sides close to one end.

3. The high-frequency induction hardening apparatus of a steam turbine blade according to claim 2, characterized in that: the automatic release mechanism (3) comprises a connecting sliding groove (301), a connecting sliding rod (302), a trapezoidal block (303) and a hinge rod (304), the connecting sliding groove (301) is located at the middle position of the bottom of the mounting plate (201), the trapezoidal block (303) is arranged in the connecting sliding groove (301) in a sliding mode, and two sets of hinge rods (304) are hinged to one side of the trapezoidal block (303).

4. The high-frequency induction hardening apparatus of a steam turbine blade according to claim 1, characterized in that: the bottom of the sliding rod (202) extends out of the interior of the sliding groove (207), and the bottom of the sliding rod (202) is hinged with the hinge rod (304).

5. The high-frequency induction hardening apparatus of a steam turbine blade according to claim 1, characterized in that: the cross sections of the connecting sliding groove (301) and the connecting sliding rod (302) are T-shaped, and the connecting sliding groove (301) and the connecting sliding rod (302) slide mutually.

6. The high-frequency induction hardening apparatus of a steam turbine blade according to claim 1, characterized in that: the driven gear (208) and the arc-shaped rack (4) are located at the same horizontal height, and the driven gear (208) and the arc-shaped rack (4) are meshed with each other.

7. The high-frequency induction hardening apparatus of a steam turbine blade according to claim 1, characterized in that: the top of the outer side of the sliding rod (202) is provided with a limiting block, and the limiting block is positioned above the sliding groove (207).

8. The high-frequency induction hardening apparatus of a steam turbine blade according to claim 1, characterized in that: and a reinforcing plate is arranged at one side, away from each other, of the bottoms of the quenching box (15) and the cooling tank (12), and is fixedly connected with one side of the supporting leg (1).

9. The high-frequency induction hardening apparatus of steam turbine blades according to claim 1, characterized in that: the trapezoid blocks (303) are trapezoid, and the inclined edges of the extrusion rod (210) and the trapezoid blocks (303) slide mutually.

10. The high-frequency induction hardening equipment of steam turbine blades according to any one of claims 1 to 9, comprising the following steps:

the method comprises the following steps: firstly, separating two groups of clamping plates (206) to a position far away from each other, vertically placing the turbine blade to be quenched between the two groups of clamping plates (206), clamping and fixing the blade by the two groups of clamping plates (206) under the elastic force of four groups of springs (204), driving two groups of driving gears (18) to rotate by opening a driving motor (17), simultaneously rotating the driving gears (18) and an annular rack (19) which drives the annular frame body (5) to rotate in a supporting table (16), and driving the turbine blade to be quenched to be transmitted to a working area;

step two: at the moment, the turbine blade is driven to the lower part of the induction coil (7) by the annular frame body (5), and at the moment, the electric push rod (9) works to drive the induction coil (7) and the quenching machine (8) to move downwards, so that the induction coil (7) completely moves to the outer side of the turbine blade, wraps the turbine blade and rapidly heats the turbine blade;

step three: the heated turbine blade continues to move, when the blade moves to the arc-shaped rack (4), the driven gear (208) is in contact with the arc-shaped rack (4) at the moment, so that the driven gear (208) rotates, the driven gear (208) drives the extrusion rod (210) to rotate through the rotating shaft (209), the extrusion rod (210) is in contact with the inclined edge of the trapezoidal block (303), the trapezoidal block (303) is pushed to move towards the position far away from the extrusion rod (210), so that the two groups of hinged rods (304) push the sliding rod (202) to slide in the sliding groove (207) and to be far away from each other, at the moment, the two groups of clamping plates (206) are far away from each other to release clamping of the blade, and the blade falls into the quenching box (15) through the through groove (205) to be quenched;

step four: the quenching device comprises a first water pump (13) and a second water pump (14) which work simultaneously during quenching, the second water pump (14) transfers hot water in a quenching box (15) to the inside of a cooling tank (12), a cooling pipe (11) in the cooling tank (12) cools the hot water transferred from the cooling tank (12), and the first water pump (13) transfers cold water in the cooling tank (12) to the inside of the quenching box (15), so that the temperature of the water quenched in the quenching box (15) is always kept in a certain range, and the quenching quality is guaranteed.