Integral induction hardening equipment for large bearing raceway

Abstract

The invention discloses integral induction quenching equipment for a large bearing raceway, and relates to the technical field of induction quenching, the integral induction quenching equipment comprises a lifting rotary table and a double-gantry quenching machine tool arranged above the lifting rotary table, the double-gantry quenching machine tool comprises two horizontal longitudinal beams which are oppositely arranged, and the two horizontal longitudinal beams are supported on the ground through stand columns; two gantry cross beams are arranged between the two horizontal longitudinal beams and can longitudinally translate along the horizontal longitudinal beams; at least one load lifting arm is arranged on the gantry cross beam and can translate transversely along the gantry cross beam; a load sensing part is arranged at the lower end of the load lifting arm; the lifting turntable comprises a turntable part, a rotation driving part and a lifting driving part; the rotary driving part is used for driving the rotary table part to rotate. The lifting driving part is used for driving the rotary table part to lift.

Description

Technical Field

[0001] The invention relates to the technical field of induction quenching, in particular to an integral induction quenching device for a large bearing raceway. Background Art

[0002] Large bearings play a key supporting role in various heavy machinery and equipment. Their main function is to carry radial and axial loads and reduce rotational friction through rolling contact. Because they work under high load and high speed conditions, the raceway of the bearing must have high hardness and wear resistance to ensure the long life and high performance of the bearing.

[0003] In order to meet this demand for high strength and high wear resistance, the raceways of large bearing outer rings are usually quenched. The quenching process changes the microstructure of the material through rapid heating and cooling, which significantly increases its hardness and wear resistance.

[0004] In the prior art, scanning quenching is usually used to quench the entire workpiece. A single sensor starts quenching from one point, returns to the starting point after quenching a circle, and completes the quenching of the workpiece. The quenching efficiency of the entire workpiece using scanning quenching is too slow and time-consuming. Overall quenching is also often used to quench the workpiece. Overall quenching is efficient, but overall quenching has requirements for the size of the workpiece. The maximum diameter of the quenching workpiece of the prior art is 1.5m, and the scope of application is narrow.

[0005] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0006] In view of the defects existing in the prior art, the object of the present invention is to provide an integral induction hardening device for a large bearing raceway.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: an integral induction quenching equipment for a large bearing raceway, comprising a lifting turntable and a double gantry quenching machine tool arranged above the lifting turntable, the double gantry quenching machine tool comprising two horizontal longitudinal beams arranged opposite to each other, and the two horizontal longitudinal beams are supported on the ground by columns; two gantry cross beams are arranged between the two horizontal longitudinal beams, and the gantry cross beams can be translated longitudinally along the horizontal longitudinal beams; at least one load lifting arm is arranged on the gantry cross beam, and the load lifting arm can be translated laterally along the gantry cross beam; a load sensing component is arranged at the lower end of the load lifting arm; the lifting turntable comprises a turntable component, a rotating drive component and a lifting drive component; the rotating drive component is used to drive the turntable component to rotate, and the lifting drive component is used to drive the turntable component to lift and lower.

[0008] On the basis of the above technical solution, a connecting crossbeam is arranged between the two horizontal longitudinal beams, a first longitudinal slide rail is arranged on the horizontal longitudinal beam, a longitudinal rack is arranged on the inner side of the first horizontal longitudinal beam, and a drag chain mounting plate is arranged on the outer side of the first horizontal longitudinal beam.

[0009] On the basis of the above technical solution, sliding seats compatible with the first longitudinal slide rail are respectively provided at both ends of the gantry beam, a first drive motor is provided at the bottom of the gantry beam, transmission rods are respectively provided at both ends of the first drive motor, and a first gear compatible with the longitudinal rack is provided at the end of the transmission rod; a first transverse slide rail and a transverse rack are provided on the inner side surface of the gantry beam, a first slide for connecting the load lifting arm is slidably provided on the first transverse slide rail, and a second drive motor is provided on the first slide, and the driving end of the second drive motor is connected to a second gear compatible with the transverse rack.

[0010] On the basis of the above technical solution, lifting rails are respectively arranged on both sides of the load lifting arm, and a second slide is slidably arranged on the lifting rails; a first connecting plate and a third driving motor are arranged on the outer side of the load lifting arm, the outer side of the first connecting plate is connected to the first slide and the two sides of the first connecting plate are respectively connected to the two second slides, and the third driving motor is connected to the first connecting plate through a screw rod.

[0011] On the basis of the above technical solution, the load sensing component includes a second connecting plate, a first slide, a second slide, a transformer and an inductor which are arranged in sequence from top to bottom; the top of the second connecting plate is fixedly connected to the lower end of the load lifting arm, the bottom of the second connecting plate is connected to the top of the first slide through a rotating disk, and the side of the second connecting plate is provided with a rotating motor for driving the rotating disk to rotate; a second transverse slide rail is provided at the bottom of the first slide, and the top of the second slide is slidably connected to the second transverse slide rail; a fourth drive motor for driving the second slide to move is provided on the side of the first slide; a second longitudinal slide rail is provided at the bottom of the second slide, and the top of the transformer is slidably connected to the second longitudinal slide rail; a fifth drive motor for driving the transformer to move is provided on the side of the second slide; and the inductor is connected to the bottom of the transformer.

[0012] On the basis of the above technical solution, the turntable component includes a turntable body and a clamping support arm arranged on the turntable body for supporting the workpiece.

[0013] On the basis of the above technical solution, the lifting drive component includes a fixed frame and a lifting slide plate, the fixed frame is connected to the lifting slide plate through a lifting cylinder, and the rotation drive component is installed on the lifting slide plate.

[0014] On the basis of the above technical solution, the rotating drive component includes a fixed sleeve arranged on the lifting slide plate, and the top of the fixed sleeve is connected to the turntable component, a rotating spindle is arranged in the fixed sleeve, the upper end of the rotating spindle is connected to the turntable component, and the lower end of the rotating spindle is connected to the sixth driving motor.

[0015] On the basis of the above technical solution, the lifting turntable also includes a water tank, and the water tank is installed on a fixed bracket; the turntable component is arranged in the water tank, and a sinking part is arranged at the bottom of the water tank, and the sinking part is provided with a through hole for the fixing sleeve to pass through.

[0016] On the basis of the above technical solution, it also includes peripheral equipment arranged next to the double gantry quenching machine, and the peripheral equipment includes a plurality of independent power cabinets.

[0017] The beneficial effects of the present invention are:

[0018] 1. The invention heats multiple inductors simultaneously to form overall quenching, which is time-saving, fast and has high heating efficiency;

[0019] 2. The maximum workpiece diameter that can be processed by the present invention is 4000mm, which greatly increases the applicable workpiece size range compared with the original overall quenching, and realizes the overall quenching of large-diameter raceways;

[0020] 3. The present invention can select spray quenching and immersion quenching, and can also use a single heating load sensor to scan and quench the workpiece. The overall use range of the machine tool is wide, the processing method is diverse, and the cooling method is flexible;

[0021] 4. The present invention has various ways to lift the workpiece, including hydraulic, pneumatic, electric and other methods, which can be flexibly selected according to actual conditions;

[0022] 5. The present invention has multiple power sources and multiple workstations, and can adjust energy output according to different workpieces, which is energy-saving and environmentally friendly. Multiple power sources can better adjust the heating and cooling processes to obtain better quenching effects. Multiple power sources can increase the current density in the heating area by using multiple power sources simultaneously or alternately, shorten the heating time, improve production efficiency, and enhance quenching quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of an integral induction hardening device for a large bearing raceway according to an embodiment of the present invention;

[0024] Figure 2 A three-dimensional diagram of a double-gantry quenching machine tool in an embodiment of the present invention;

[0025] Figure 3 A top view of a double-gantry quenching machine tool in an embodiment of the present invention;

[0026] Figure 4A three-dimensional diagram of a gantry beam in an embodiment of the present invention;

[0027] Figure 5 A three-dimensional diagram of a load lifting arm in an embodiment of the present invention;

[0028] Figure 6 is a three-dimensional diagram of a load sensing component in an embodiment of the present invention;

[0029] Figure 7 A three-dimensional diagram of a lifting turntable in an embodiment of the present invention;

[0030] Figure 8 It is a cross-sectional view of the lifting turntable in the embodiment of the present invention.

[0031] Reference numerals:

[0032] 1-Double gantry quenching machine; 11-Horizontal longitudinal beam; 111-First longitudinal slide rail; 112-Longitudinal rack; 113-Drag chain mounting plate; 12-Column; 13-Gantry beam; 131-First drive motor; 132-Transmission rod; 133-First gear; 134-Slide seat; 135-First transverse slide rail; 136-Transverse rack; 137-First slide table; 138-Second drive motor; 139-Second gear; 14-Load lifting arm; 141-Lifting slide rail; 142 - second slide; 143 - first connecting plate; 144 - third drive motor; 145 - lead screw; 15 - load sensing component; 1501 - second connecting plate; 1502 - first slide plate; 1503 - second slide plate; 1504 - transformer; 1505 - inductor; 1506 - rotating disk; 1507 - rotating motor; 1508 - second transverse slide rail; 1509 - fourth drive motor; 1510 - second longitudinal slide rail; 1511 - fifth drive motor; 16 - connecting beam;

[0033] 2-lifting turntable; 21-turntable component; 211-turntable body; 212-clamping support arm; 22-lifting drive component; 221-fixed frame; 222-lifting slide plate; 223-lifting cylinder; 23-rotating drive component; 231-fixed sleeve; 232-sixth drive motor; 233-rotating spindle; 24-water tank; 241-fixed bracket; 242-sinking part;

[0034] 3- Peripheral devices. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0036] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "several" and "a number" mean two or more, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the invention, unless otherwise specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “below”, and “above” a second feature includes that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “above”, “below”, and “below” a second feature includes that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] The following is a further description of the specific embodiments of the present invention in conjunction with the drawings of the specification, so that the technical solution and beneficial effects of the present invention are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the present invention, but cannot be understood as limiting the present invention.

[0041] See also Figure 1 and Figure 2As shown, an embodiment of the present invention provides an integral induction quenching device for a large bearing raceway, comprising a lifting turntable 2 and a double gantry quenching machine 1 arranged above the lifting turntable 2: the double gantry quenching machine 1 comprises two horizontal longitudinal beams 11 arranged opposite to each other, and the two horizontal longitudinal beams 11 are supported on the ground by columns 12; two gantry cross beams 13 are arranged between the two horizontal longitudinal beams 11, and the gantry cross beams 13 can be longitudinally translated along the horizontal longitudinal beams 11; two load lifting arms 14 are arranged on the gantry cross beams 13, and the load lifting arms 14 can be laterally translated along the gantry cross beams 13; a load sensing component 15 is arranged at the lower end of the load lifting arm 14; specifically, the integral induction quenching device for a large bearing raceway also includes a peripheral device 3 arranged next to the double gantry quenching machine 1, and the peripheral device 3 includes a plurality of independent power supply cabinets, and the plurality of independent power supply cabinets are used to supply power and heat a workpiece at the same time.

[0042] See also Figure 7 and Figure 8 As shown, the lifting turntable 2 includes a turntable component 21, a rotation drive component 23 and a lifting drive component 22; the rotation drive component 23 is used to drive the turntable component 21 to rotate, and the lifting drive component 22 is used to drive the turntable component 21 to lift. Specifically, the turntable component 21 includes a turntable body 211 and a clamping support arm 212 arranged on the turntable body 211 for supporting a workpiece. The lifting drive component 22 includes a fixed frame 221 and a lifting slide 222, the fixed frame 221 is connected to the lifting slide 222 through a lifting cylinder 223, and the rotation drive component 23 is installed on the lifting slide 222. The turntable lifting component can complete the lifting action in a variety of ways, such as hydraulic, pneumatic, electric, etc., and a suitable method can be selected according to different needs. The rotating driving component 23 includes a fixing sleeve 231 disposed on the lifting slide plate 222, and the top of the fixing sleeve 231 is connected to the turntable component 21, a rotating main shaft 233 is disposed in the fixing sleeve 231, the upper end of the rotating main shaft 233 is connected to the turntable component 21, and the lower end of the rotating main shaft 233 is connected to the sixth driving motor 232. The lifting turntable 2 also includes a water tank 24, and the water tank 24 is installed on the fixing bracket 241; the turntable component 21 is disposed in the water tank 24, and a sinking part 242 is disposed at the bottom of the water tank 24, and the sinking part 242 is provided with a through hole for the fixing sleeve 231 to pass through.

[0043] See also Figure 3 As shown, a connecting crossbeam 16 is provided between the two horizontal longitudinal beams 11 , a first longitudinal slide rail 111 is provided on the horizontal longitudinal beam 11 , a longitudinal rack 112 is provided on the inner side of the first horizontal longitudinal beam 11 , and a drag chain mounting plate 113 is provided on the outer side of the first horizontal longitudinal beam 11 .

[0044] See also Figure 4As shown, slide seats 134 matched with the first longitudinal slide rail 111 are respectively provided at both ends of the gantry beam 13, a first drive motor 131 is provided at the bottom of the gantry beam 13, transmission rods 132 are respectively provided at both ends of the first drive motor 131, and a first gear 133 matched with the longitudinal rack 112 is provided at the end of the transmission rod 132; a first transverse slide rail 135 and a transverse rack 136 are provided on the inner side surface of the gantry beam 13, a first slide 137 for connecting the load lifting arm 14 is slidably provided on the first transverse slide rail 135, and a second drive motor 138 is provided on the first slide 137, and a driving end of the second drive motor 138 is connected to a second gear 139 matched with the transverse rack 136.

[0045] See also Figure 5 As shown, lifting rails 141 are respectively provided on both sides of the load lifting arm 14, and a second slide 142 is slidably provided on the lifting rails 141; a first connecting plate 143 and a third driving motor 144 are provided on the outer side of the load lifting arm 14, the outer side of the first connecting plate 143 is connected to the first slide 137 and the two sides of the first connecting plate 143 are respectively connected to the two second slides 142, and the third driving motor 144 is connected to the first connecting plate 143 through a screw rod 145.

[0046] See also Figure 6 As shown, the load sensing component 15 includes a second connecting plate 1501, a first slide plate 1502, a second slide plate 1503, a transformer 1504 and an inductor 1505 which are arranged in sequence from top to bottom; the top of the second connecting plate 1501 is fixedly connected to the lower end of the load lifting arm 14, the bottom of the second connecting plate 1501 is connected to the top of the first slide plate 1502 through a rotating disk 1506, and a rotating motor 1507 for driving the rotating disk 1506 to rotate is arranged on the side of the second connecting plate 1501; a second horizontal The second slide 1503 is connected to the second horizontal slide 1508, and the top of the second slide 1503 is connected to the second horizontal slide 1508 in a sliding manner; the side of the first slide 1502 is provided with a fourth driving motor 1509 for driving the second slide 1503 to move; the bottom of the second slide 1503 is provided with a second longitudinal slide 1510, and the top of the transformer 1504 is connected to the second longitudinal slide 1510 in a sliding manner; the side of the second slide 1503 is provided with a fifth driving motor 1511 for driving the transformer 1504 to move; the inductor 1505 is connected to the bottom of the transformer 1504. The transformer supplies power to the corresponding inductor below it.

[0047] In this embodiment, the equipment machine tool is specially designed for the integral induction quenching of annular raceways with a diameter of 500mm-4000mm. The whole machine tool is driven by multiple servo motors. Among them, the Y-axis movement of the two gantries, the X-axis movement of the four load lifting arm components, the lifting movement of the four heating load sensor components, and the automatic rotation of the four heating load sensor components all follow fixed trajectories. The axial and radial clearance deviations between the workpiece and the sensor are automatically tracked and compensated by the horizontal moving servo motor and the up and down moving servo motor above each set of transformers. At the same time, there is a horizontal manual adjustment slide rail screw under the transformer, and the distance can be adjusted manually.

[0048] The working principle of the present invention is:

[0049] After the processed workpiece is installed and fixed on the workpiece turntable lifting component, the turntable lifting and rotating component drives the turntable body to move upward to the appropriate position as a whole. After reaching the appropriate position, the servo motor controls the gantry, load lifting arm, heating load sensor, etc. to reach the appropriate position. It can also be manually adjusted through the horizontal adjustment device under the heating load sensor component, so that multiple sensors can close and surround the workpiece quenching position to achieve overall quenching. After that, the turntable lifting and rotating component drives the turntable body to rotate, and the heating load sensor component starts to heat. After heating to the appropriate temperature and time, the heating load sensor does not move, and the turntable lifting and rotating component drives the turntable body to descend into the water tank component, and the water tank component completes the quenching of the workpiece (a water spray cooling system can also be installed on the heating load sensor component to complete the quenching of the workpiece, which can be selected as needed). After quenching is completed, the turntable lifting and rotating component drives the turntable body to rise to the appropriate position, waiting for the workpiece to be removed, and the overall quenching is completed.

[0050] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0051] The present invention is not limited to the above-mentioned embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. An integral induction hardening device for a large bearing raceway, comprising a lifting turntable (2) and a double gantry hardening machine tool (1) arranged above the lifting turntable (2), characterized in that: The double gantry quenching machine tool (1) comprises two horizontal longitudinal beams (11) arranged opposite to each other, and the two horizontal longitudinal beams (11) are supported on the ground by columns (12); two gantry cross beams (13) are arranged between the two horizontal longitudinal beams (11), and the gantry cross beams (13) can be longitudinally translated along the horizontal longitudinal beams (11); at least one load lifting arm (14) is arranged on the gantry cross beam (13), and the load lifting arm (14) can be transversely translated along the gantry cross beam (13); a load sensing component (15) is arranged at the lower end of the load lifting arm (14); The lifting turntable (2) comprises a turntable component (21), a rotation drive component (23) and a lifting drive component (22); the rotation drive component (23) is used to drive the turntable component (21) to rotate, and the lifting drive component (22) is used to drive the turntable component (21) to lift.

2. The overall induction hardening equipment for large bearing raceways according to claim 1, characterized in that: A connecting crossbeam (16) is arranged between the two horizontal longitudinal beams (11), a first longitudinal slide rail (111) is arranged on the horizontal longitudinal beam (11), a longitudinal rack (112) is arranged on the inner side surface of the first horizontal longitudinal beam (11), and a drag chain mounting plate (113) is arranged on the outer side surface of the first horizontal longitudinal beam (11).

3. The overall induction hardening equipment for large bearing raceways according to claim 2, characterized in that: The two ends of the gantry beam (13) are respectively provided with slide seats (134) adapted to the first longitudinal slide rail (111); the bottom of the gantry beam (13) is provided with a first drive motor (131); the two ends of the first drive motor (131) are respectively provided with transmission rods (132); and the end of the transmission rod (132) is provided with a first gear (133) adapted to the longitudinal rack (112); the inner side surface of the gantry beam (13) is provided with a first transverse slide rail (135) and a transverse rack (136); the first transverse slide rail (135) is slidably provided with a first slide table (137) for connecting the load lifting arm (14); the first slide table (137) is provided with a second drive motor (138); the driving end of the second drive motor (138) is connected to a second gear (139) adapted to the transverse rack (136).

4. The overall induction hardening equipment for large bearing raceways according to claim 3, characterized in that: The load lifting arm (14) is provided with lifting rails (141) on both sides, and a second slide (142) is slidably provided on the lifting rails (141); the outer side surface of the load lifting arm (14) is provided with a first connecting plate (143) and a third driving motor (144); the outer side surface of the first connecting plate (143) is connected to the first slide (137) and the two sides of the first connecting plate (143) are respectively connected to the two second slides (142); the third driving motor (144) is connected to the first connecting plate (143) through a screw rod (145).

5. The overall induction hardening equipment for large bearing raceways according to claim 1, characterized in that: The load sensing component (15) comprises a second connecting plate (1501), a first slide plate (1502), a second slide plate (1503), a transformer (1504) and an inductor (1505) which are arranged in sequence from top to bottom; the top of the second connecting plate (1501) is fixedly connected to the lower end of the load lifting arm (14); the bottom of the second connecting plate (1501) is connected to the top of the first slide plate (1502) via a rotating disk (1506); a rotating motor (1507) for driving the rotating disk (1506) to rotate is arranged on the side of the second connecting plate (1501); a second transverse slide rail (1504) is arranged at the bottom of the first slide plate (1502); 08), the top of the second slide plate (1503) is slidably connected to the second transverse slide rail (1508); the side of the first slide plate (1502) is provided with a fourth drive motor (1509) for driving the second slide plate (1503) to move; the bottom of the second slide plate (1503) is provided with a second longitudinal slide rail (1510), and the top of the transformer (1504) is slidably connected to the second longitudinal slide rail (1510); the side of the second slide plate (1503) is provided with a fifth drive motor (1511) for driving the transformer (1504) to move; the inductor (1505) is connected to the bottom of the transformer (1504).

6. The overall induction hardening equipment for large bearing raceways according to claim 1, characterized in that: The turntable component (21) comprises a turntable body (211) and a clamping support arm (212) arranged on the turntable body (211) for supporting a workpiece.

7. The overall induction hardening equipment for large bearing raceways according to claim 1, characterized in that: The lifting drive component (22) comprises a fixed frame (221) and a lifting slide plate (222); the fixed frame (221) is connected to the lifting slide plate (222) via a lifting cylinder (223); and the rotating drive component (23) is mounted on the lifting slide plate (222).

8. The overall induction hardening equipment for large bearing raceways according to claim 7, characterized in that: The rotating drive component (23) comprises a fixing sleeve (231) arranged on the lifting slide plate (222), and the top of the fixing sleeve (231) is connected to the turntable component (21), a rotating main shaft (233) is arranged in the fixing sleeve (231), the upper end of the rotating main shaft (233) is connected to the turntable component (21), and the lower end of the rotating main shaft (233) is connected to a sixth driving motor (232).

9. The overall induction hardening equipment for large bearing raceways according to claim 8, characterized in that: The lifting turntable (2) further comprises a water tank (24), and the water tank (24) is mounted on a fixed bracket (241); the turntable component (21) is arranged in the water tank (24), and a sinking part (242) is arranged at the bottom of the water tank (24), and the sinking part (242) is provided with a through hole for the fixing sleeve (231) to pass through.

10. The overall induction hardening equipment for large bearing raceways according to claim 1, characterized in that: It also includes peripheral equipment (3) arranged next to the double-gantry quenching machine tool (1), wherein the peripheral equipment (3) includes a plurality of independent power supply cabinets.

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