Quenching machine tool for super-tonnage engineering machinery wheel body and induction quenching device thereof

Abstract

The invention relates to the technical field of quenching machine tools, in particular to a wheel body quenching machine tool for super-tonnage engineering machinery, and aims to solve the problems that in the prior art, a four-wheel quenching machine tool is difficult to position, and quenching tools are frequently replaced. Comprising a machine tool body, a workpiece clamping assembly and a load moving mechanism, the machine tool body adjusts the height of the load moving mechanism on the machine tool body in the vertical Z-axis direction through a load mounting sliding seat, and meanwhile, the workpiece clamping assembly clamps a workpiece to move and position the workpiece to a quenching machining position; the angle of the quenching load assembly is adjusted by adjusting the load inclined base, and the induction quenching device is rapidly positioned and adjusted in cooperation with coarse positioning and fine positioning of the load feeding assembly base, so that the heating position is accurately controlled, and the product quenching quality is improved. The applicability of the device is enhanced, and multiple quenching machine tools do not need to be used.

Description

Technical Field

[0001] The present application relates to the technical field of quenching machine tools, and in particular to a quenching machine tool for a wheel body of ultra-large tonnage engineering machinery and an induction quenching device thereof, wherein the induction quenching device is used for the quenching machine tool. Background Art

[0002] Track rollers, carrier sprockets, drive wheels, and guide wheels are key components of crawler-type construction machinery, often found in harsh working environments like coal yards and mines. The track rollers support the weight of the entire machine and evenly distribute it across the track shoes. The carrier sprockets support the crawler tracks and provide the necessary tension. The drive wheels transmit power from the hydraulic motor to the crawler tracks, driving their rotation and thus the entire machine. The guide wheels guide the crawler tracks in their proper rotation. All four wheels are subject to wear and impact against the track links during operation.

[0003] The extra-large tonnage crawler chassis has a large machine weight (generally the main machine is more than 300 tons) and high safety performance requirements. Therefore, the "four wheels" must have high wear resistance and impact resistance. This requires that the "four wheels" heat treatment method must be mature and reliable to ensure product quality requirements.

[0004] The current existing quenching technology for ultra-large tonnage "four-wheel" is that the industry generally uses multiple quenching equipment to heat treat the "four wheels" separately, and requires frequent replacement of sensors and positioning tooling to complete heat treatment at various positions of the wheel body. The equipment investment is large, the heat treatment efficiency is low, and the heat treatment process stability is poor. Summary of the Invention

[0005] The purpose of this application is to provide a wheel quenching machine for super-large tonnage engineering machinery to solve the problems of difficult positioning of "four-wheel" quenching machines and frequent replacement of quenching tooling in the prior art.

[0006] To solve the above technical problems, this application is implemented by adopting the following technical solutions: On the one hand, the present application provides a machine tool for quenching wheels of ultra-large tonnage engineering machinery, comprising a machine tool bed, a workpiece clamping assembly and a load moving mechanism, wherein a load mounting slide is vertically slidably mounted on the machine tool bed, and the workpiece clamping assembly is used to clamp the workpiece and feed it into the machine tool bed.

[0007] The load moving mechanism is installed on the load mounting slide, and includes a load moving base, a load tilting base, a load feeding base and a quenching load assembly; the load moving base is installed on the mounting slide and moves vertically with the mounting slide; Furthermore, the load tilting base is rotatably set on the load moving base, and its rotation axis is perpendicular to the feeding direction of the workpiece; the load feeding base is slidably installed on the load tilting base; the quenching load assembly is slidably installed on the load feeding base, for quenching the workpiece; the load feeding base and the quenching load assembly slide in the same direction and the sliding directions of both point to the feeding direction of the workpiece.

[0008] The machine tool bed of the present application adjusts the height of the load moving mechanism on it in the vertical Z-axis direction through the load mounting slide. At the same time, the workpiece clamping assembly clamps the workpiece to move and position it to the quenching processing position, and then adjusts the angle of the quenching load assembly by adjusting the load tilting base, and cooperates with the coarse positioning and fine positioning of the load feeding assembly base to quickly position and adjust the induction quenching device.

[0009] Furthermore, the load tilting base is installed on the load moving base through the leveling base, and two rows of parallel moving guide rails are provided on the load moving base; the leveling base is installed on the moving guide rails, and a leveling smoothing column is installed thereon, and the leveling smoothing column is used to support the movable end of the load tilting base; a motor drive assembly for driving the leveling base to move is provided between the two rows of moving guide rails.

[0010] Furthermore, the rotating end of the load tilting base is installed on the leveling base through an articulated bearing seat; two rows of positioning sliders are installed on the load tilting base, and the arrangement direction of each row of positioning sliders is perpendicular to the arrangement direction of the movable guide rail, and the load feeding base is installed on the load tilting base through the positioning sliders.

[0011] Furthermore, the load feed base drives the quenching load slide thereon to move through a motor drive assembly, and the quenching load assembly is installed on the load feed base through the quenching load slide. The quenching load assembly includes a transformer, an assembly base and an induction quenching device. The transformer is installed on the quenching load slide, and the induction quenching device is installed on the transformer through the assembly base.

[0012] Furthermore, the workpiece clamping assembly includes a four-claw faceplate, a spindle box and a movable slide, the four-claw faceplate is used to clamp the workpiece, the bottom of the four-claw faceplate is rotatably mounted on the spindle box, the spindle box is used to drive the four-claw faceplate to be installed, the spindle box is slidably mounted on the movable slide, and the movable slide drives the spindle box to move on the horizontal plane through its upper guide rail.

[0013] On the other hand, the present application also provides an induction quenching device, which is installed on the above-mentioned quenching load assembly of the super-large tonnage engineering machinery wheel quenching machine tool. The induction quenching device includes a heating sensor, a cooling water sprayer, a connecting plate and a positioning plate. One side of the connecting plate is installed on the quenching load assembly, and the other side is connected to the positioning plate. The heating sensor and the cooling water sprayer are both installed on the positioning plate; the end of the heating sensor facing the workpiece is close to the workpiece and the close gap is 2-10mm.

[0014] This application installs induction quenching devices for different wheel bodies to perform adaptive multi-directional and multi-angle quenching processing on the workpiece, thereby improving the positioning speed and quenching efficiency of the quenching processing. Furthermore, the cooling water sprayer is mounted on the positioning plate through adjusting bolts; and a plurality of water outlet holes are provided on the end of the cooling water sprayer facing the workpiece.

[0015] According to the above, when the track rollers and the carrier sprockets are quenched, the end of the heating inductor facing the workpiece is in a circular shape surrounding the outside of the workpiece.

[0016] At the same time, when the driving wheel is quenched, the cooling water sprayer is located below the heating inductor; the ends of the heating inductor and the cooling water sprayer facing the workpiece are both arc-shaped.

[0017] At the same time, when the guide wheel is quenched, the ends of the heating inductor and the cooling water sprayer facing the workpiece are both flat, and the ends of the heating inductor and the cooling water sprayer are both bent.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. This application can precisely control the heating position by adjusting the three-dimensional position of the induction heating component, thereby improving the quenching quality of the product. Combined with the detachable nature of the induction heating component, different heating components can be designed according to the external dimensions of the quenched "four-wheel" and the requirements of the hardened layer, which enhances the applicability of this application. It does not require the use of multiple quenching machines or the frequent replacement of positioning shafts, fixtures, and other tooling, and can meet the heat treatment needs of "four-wheel" products of various sizes and models. 2. The induction hardening device of the present application performs hardening on key processing parts of the workpiece by arranging heating sensors and cooling water sprayers of different shapes. By shape fitting and gap control, the hardening effect of the induction hardening device on key parts of the workpiece is improved. At the same time, combined with the above-mentioned hardening machine tool, it can realize flexible processing of different workpieces, reduce the number of times the quenching device is disassembled, and improve processing efficiency. 3. The load tilting base of the present application is also equipped with a leveling base, which supports and positions the load tilting base by adjusting the lifting and lowering of the leveling base, thereby improving the positioning stability of the load tilting base. At the same time, it is convenient for the operator to quickly adjust the position to the appropriate position and fix it, thereby preventing the load tilting base from shifting or falling, and improving the reliability and stability of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 It is a schematic diagram of the entire machine tool of the present application; Figure 2 It is a top plan view of the machine tool; Figure 3 It is a structural diagram of the machine tool bed; Figure 4 It is a structural diagram of the load moving mechanism; Figure 5 This is a schematic diagram of the installation of the load moving base and its upper leveling base; Figure 6 It is a schematic diagram of the installation relationship of the quenching load components; Figure 7 It is a schematic diagram of the structure of the workpiece clamping assembly; Figure 8 is a schematic diagram of a drive unit of a workpiece clamping assembly; Figure 9 This is a schematic diagram of the installation of an induction hardening device for processing support / drag chain wheels; Figure 10 yes Figure 9 A top-down plan view of Figure 11 This is a schematic diagram of the installation of the induction hardening device for processing the drive wheel; Figure 12 yes Figure 11 A top-down plan view of Figure 13 This is a schematic diagram of the installation of the induction hardening device for machining the guide wheel; Figure 14 yes Figure 13 Schematic top view of the plan.

[0021] Description of reference numerals: 1. Machine tool bed; 11. Load mounting slide; 2. Load moving mechanism; 3. Workpiece clamping assembly; 31. Four-claw faceplate; 311. Disc; 312. Support arm; 32. Spindle box; 321. Servo reduction motor; 322. Power output shaft; 33. Moving slide; 4. Load moving base; 41. Leveling base; 42. Leveling smooth column; 43. Moving guide rail; 5. Load tilting base; 51. Positioning slider; 52. Articulated bearing seat; 6. Load feeding base; 61. Quenching load slide; 7. Quenching load assembly; 71. Transformer; 72. Quenching positioning base; 73. Assembly base; 8. Induction quenching device; 81. Heating sensor; 82. Cooling sprinkler; 83. Connecting plate; 84. Positioning plate; 85. Adjusting bolt; 86. Water outlet; 9. Motor drive assembly. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only some embodiments of the present application, rather than all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application, its application, or use. Example

[0023] like Figure 1 As shown, the present invention provides a machine tool for quenching wheels of super-large tonnage engineering machinery, including a machine tool bed 1 installed on the ground. The main body of the machine tool bed 1 is a double-column gantry structure. The machine tool bed 1 is composed of two columns. The two columns are spaced a certain distance apart and placed parallel along the third direction (Y). Linear guide rails are arranged on the corresponding sides of the two columns. A load moving mechanism 2 is slidably installed above the guide rail through a quenching load slide 61. A servo motor is arranged on the column to provide a driving force for the load moving mechanism 2 to move up and down (Z), and the power is transmitted through a plum blossom coupling.

[0024] Further, if Figure 2 As shown, the load moving mechanism 2 consists of three parts, namely a load moving base 4 installed between the column slides of the machine tool bed 1, a load tilting base 5 installed above the load moving base 4, and a load feeding base 6 installed above the load tilting base 5. The load moving mechanism 2 is controlled by a control system.

[0025] It is worth noting that the motor drive assembly 9 can use a motor in conjunction with a screw rod to vertically drive the load mounting slide 11 on the two side pillars, and can also use a stepper motor to drive the load mounting slide 11 to move; technical personnel in this field can choose an alternative solution for the motor drive assembly 9 that drives linear sliding.

[0026] In this embodiment, if Figure 3 and Figure 4 As shown, the load moving base 4 is movably arranged between the double-column machine tool bed 1 along the first direction (Z), and has the function of moving in the second direction (X) and the third direction (Y).

[0027] Specifically, the bottom support of the load moving base 4 has mounting holes on both sides along the third direction, and is respectively installed on the quenched load slides 61 on the columns on both sides of the machine tool bed 1. The load moving base 4 realizes movement in the first direction through the linear guide rails on the columns; a linear guide rail in the third direction is configured above the load moving base 4, and a load tilting base 5 is installed above the linear guide rail through a slide, and a motor drive assembly 9 is also installed below the load moving base 4 to provide driving force for the load tilting base 5 to slide in the third direction.

[0028] Furthermore, if Figure 4 As shown, the load tilting base 5 is installed above the load moving base 4. The upper end plane of the load tilting base 5 is provided with six symmetrically arranged positioning sliders 51. The lower portion of the load tilting base 5 is installed on the load moving base 4 via an articulated bearing seat 52. The load tilting base 5 can slide along the guide rail on the load moving base 4 and rotate around the articulated bearing seat 52. The load tilting base 5 drives the quenching load assembly 7 thereon to rotate along the axis of the third direction through the rotation of the bearing, thereby realizing the second direction tilt feed movement of the quenching load assembly 7. Furthermore, if Figure 6 As shown, the load feeding base 6 is installed above the load tilting base 5, which is also equipped with a motor and a guide rail for realizing linear sliding. The guide rail below the load feeding base 6 cooperates with the positioning slider 51 above the load tilting base 5, thereby realizing the overall movement of the load feeding base 6 in the second direction; the quenching load assembly 7 can be linearly slidably installed on the load feeding base 6 through the quenching load slide 61 at the bottom, and the quenching load assembly 7 can realize its movement in the second direction through the movement of the quenching load slide 61 on the guide rail.

[0029] Furthermore, if Figure 4 and Figure 6 As shown, the quenching load assembly 7 includes a transformer 71, a capacitor bank 72 (not installed in the figure), an assembly base 73 and an induction quenching device 8. The transformer 71 is installed on the quenching load slide 61, and the induction quenching device 8 is installed on the transformer 71 through the assembly base 73.

[0030] like Figure 6As shown, a capacitor bank 72 is also installed on the quenching load slide 61 (installed in the figure, only the installation holes are retained) to supply power to the transformer 71, and they are connected in series through a connecting copper bus with a water-cooling function; an assembly base 73 is installed on the front face of the transformer 71, and the turns ratio and capacitance of the transformer 71 can be adjusted separately.

[0031] Furthermore, the induction hardening device 8 includes a heating inductor 81, a cooling water sprayer 82, a connecting plate 83, and a positioning plate 84. The induction hardening device 8 is designed according to the external dimensions of the quenching "four wheels" and the requirements of the hardened layer, and is detachably mounted on the assembly base 73 of the quenching load assembly 7.

[0032] In this embodiment, if Figure 7 and Figure 8 As shown, the workpiece clamping assembly 3 consists of a four-claw faceplate 31, a spindle box 32 and a movable slide 33, wherein the four-claw faceplate 31 is the working station of the induction quenching device 8, and is welded by a disc part 311 and four support arms 312. The four support arms 312 are located above the disc part 311 and are symmetrically distributed around the center. Each support arm 312 is equipped with a group of sliders for synchronous centripetal sliding adjustment, and is then used to clamp the workpiece. The center position of the four-claw faceplate 31 is connected downward to the power output shaft 322.

[0033] Furthermore, the four-claw faceplate 31 is installed above the spindle box 32, and a servo reduction motor 321 is installed in the spindle box 32, which is connected to the power output shaft 322 in the center of the four-claw faceplate 31 through a plum blossom coupling, so as to drive the faceplate to rotate; the movable slide 33 is installed below the spindle box 32, and the movement and positioning of the four-claw faceplate 31 thereon are realized through the guide rails and servo motors configured thereon.

[0034] like Figure 7 As shown, during the quenching process, the wheel workpiece to be quenched is placed in the center of the four symmetrically distributed support arms 312 of the four-claw faceplate 31. A motor controls each support arm 312 to synchronously and centrifugally clamp the workpiece. After the workpiece is clamped, the spindle box 32 below the four-claw faceplate 31 is driven by a servo motor and moves along linear guides in the third direction until the workpiece reaches the preset working position. The servo motor in the spindle box 32 is connected to the power output shaft 322 of the four-claw faceplate 31 via a plum blossom coupling. The servo motor then rotates the faceplate to rotate the workpiece. Example

[0035] like Figures 4 to 6As shown, on the basis of the above-mentioned embodiment 1, a leveling base 41 is provided between the load moving base 4 and the load tilting base 5 in this embodiment, and a slider is provided at the bottom of the leveling base 41, and cooperates with the moving guide rail 43 on the upper end plane of the load moving base 4, so that the articulated bearing seat 52 on the load tilting base 5 is installed on the leveling base 41 along the third direction. As a result, the load moving base 4 drives the leveling base 41 thereon to slide along the third direction through the motor drive assembly 9, and then the load tilting base 5 on the leveling base 41 also completes the sliding positioning in the third direction.

[0036] In this embodiment, further, Figure 5 As shown, a liftable leveling column 42 is also installed on the leveling base 41. The leveling column 42 is electrically controlled to extend and retract up and down, thereby realizing the support positioning of the movable end of the load tilting base 5. During the actual positioning adjustment, the operator first rotates the load tilting base 5 on the leveling base 41 to rotate it to a suitable position, and then controls the leveling column 42 to rise until the leveling column 42 abuts against the bottom end of the leveling base 41. Example

[0037] like Figures 9 to 14 As shown, this embodiment provides an induction quenching device 8, which can be used for the quenching machine tools in the above-mentioned embodiments 1 and 2, including a heating sensor 81, a cooling water sprayer 82, a connecting plate 83 and a positioning plate 84. One side of the connecting plate 83 is mounted on the assembly plate at the front end of the quenching load assembly 7, and the other side is connected to the positioning plate 84. The heating sensor 81 and the cooling water sprayer 82 are both mounted on the positioning plate 84; the end of the heating sensor 81 facing the workpiece is close to the workpiece with a close clearance of 10 mm.

[0038] In this embodiment, the cooling water sprayer 82 is installed on the positioning plate 84 by means of an adjusting bolt 85. The length of the adjusting bolt 85 determines the adjustment length of the cooling water sprayer 82. By adjusting the installation position of the nut on the adjusting bolt 85, the distance between the cooling water sprayer 82 and the positioning plate 84 is adjusted, and then the distance between the cooling water sprayer 82 and the heating sensor 81 is adjusted, thereby adapting to wheel workpieces of different sizes. In this embodiment, the plane of the cooling water sprayer 82 facing the workpiece end is covered with 2 mm water outlet holes 86.

[0039] Different cooling water sprayers 82 and heating sensors 81 are designed according to the design and processing parameters of the different wheel bodies of the "four wheels", including the design of the installation position and the shape of the quenching surface.

[0040] Specifically, if Figure 9 and Figure 10As shown, in this embodiment, the quenching of the track rollers and sprockets primarily supports the weight. Therefore, during quenching, uniform quenching of the entire annular surface is required to ensure overall strength. Specifically, the cooling water sprayer 82 is positioned below the heating inductor 81, and the end of the heating inductor 81 facing the workpiece is circular and surrounds the outside of the workpiece.

[0041] like Figure 11 and Figure 12 As shown, for the quenching process of the driving wheel, since the driving wheel is engaged with the track chain of the crawler, the driving wheel has meshing teeth arranged at different pitches, which forms a concave and convex processing surface on the driving wheel. In order to improve the adaptability of the quenching process, the cooling water sprayer 82 is arranged below the heating sensor 81, and the ends of the heating sensor 81 and the cooling water sprayer 82 facing the workpiece are set to be arc-shaped, so that the processing surface of the arc surface can fit the meshing teeth of the driving wheel, thereby significantly improving the quenching effect.

[0042] like Figure 13 and Figure 14 As shown, for the quenching process of the guide wheel, since the wheel surface of the guide wheel is usually smooth and a raised arm ring is set in the middle for guidance, the ring surfaces on both sides of the arm ring are mainly used to support the track chain. Therefore, the main position of the quenching process is the above-mentioned ring surface, and thus the ends of the heating sensor 81 and the cooling water sprayer 82 facing the workpiece are set to be flat, and the lower ends are bent to fit the side of the arm ring.

[0043] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "inner," and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are used only to explain the relative positional relationships and movement of components in a specific posture. If the specific posture changes, the directional indications will also change accordingly. These terms are used solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting this application.

[0044] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more.

[0045] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0046] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A machine tool for quenching wheels of super-large tonnage engineering machinery, characterized in that: include: A machine tool bed (1), wherein a load mounting slide (11) is vertically slidably mounted on the machine tool bed (1). A workpiece clamping assembly (3) for clamping a workpiece and feeding it into the machine tool bed (1); A load moving mechanism (2) mounted on the load mounting slide (11) comprises a load moving base (4), a load tilting base (5), a load feeding base (6) and a quenching load assembly (7); the load moving base (4) is mounted on the load mounting slide (11) and moves vertically following the load mounting slide; The load tilting base (5) is rotatably mounted on the load moving base (4), and its rotation axis is perpendicular to the feeding direction of the workpiece; The load feeding base (6) is slidably mounted on the load tilting base (5); The quenching load assembly (7) is slidably mounted on the load feed base (6) and is used to perform quenching treatment on the workpiece; the load feed base (6) and the quenching load assembly (7) slide in the same direction, and both sliding directions point to the workpiece feeding direction.

2. The machine tool for quenching wheels of super-large tonnage engineering machinery according to claim 1, characterized in that: The load tilting base (5) is mounted on the load moving base (4) via a leveling base (41), and the load moving base (4) is provided with two rows of parallel moving guide rails (43); The leveling base (41) is mounted on the movable guide rail (43), and a leveling column (42) is mounted thereon, the leveling column (42) being used to support the movable end of the load tilting base (5); A motor drive assembly (9) for driving the leveling base (41) to move is provided between the two rows of movable guide rails (43).

3. The machine tool for quenching wheels of super-large tonnage engineering machinery according to claim 2, characterized in that: The rotating end of the load tilting base (5) is mounted on the leveling base (41) via a hinged bearing seat (52); Two rows of positioning slide blocks (51) are installed on the load tilting base (5), and the arrangement direction of the positioning slide blocks (51) in each row is perpendicular to the arrangement direction of the movable guide rail (43). The load feeding base (6) is installed on the load tilting base (5) through the positioning slide blocks (51).

4. The machine tool for quenching wheels of super-large tonnage engineering machinery according to claim 2, characterized in that: The load feeding base (6) is driven by a motor drive assembly (9) to move a quenching load slide plate (61) thereon, and the quenching load assembly (7) is mounted on the load feeding base (6) via the quenching load slide plate (61); The quenching load assembly (7) comprises a transformer (71), an assembly base (73) and an induction quenching device (8), wherein the transformer (71) is mounted on the quenching load slide (61), and the induction quenching device (8) is mounted on the transformer (71) via the assembly base (73).

5. The machine tool for quenching wheels of super-large tonnage engineering machinery according to claim 1, characterized in that: The workpiece clamping assembly (3) includes a four-claw faceplate (31), a spindle box (32) and a movable slide (33), wherein the four-claw faceplate (31) is used to clamp the workpiece, the bottom of the four-claw faceplate (31) is rotatably mounted on the spindle box (32), the spindle box (32) is used to drive the four-claw faceplate (31) to be installed, the spindle box (32) is slidably mounted on the movable slide (33), and the movable slide (33) drives the spindle box (32) to move on a horizontal plane through its upper guide rail.

6. An induction hardening device (8), mounted on a quenching load assembly (7) of a quenching machine tool for a wheel body of an ultra-large tonnage engineering machinery according to any one of claims 1 to 5, characterized in that: The invention comprises a heating sensor (81), a cooling water sprayer (82), a connecting plate (83) and a positioning plate (84); one side of the connecting plate (83) is mounted on the quenching load assembly (7), and the other side is connected to the positioning plate (84); the heating sensor (81) and the cooling water sprayer (82) are both mounted on the positioning plate (84); the end of the heating sensor (81) facing the workpiece is close to the workpiece and the close clearance is 2-10 mm.

7. The induction hardening device (8) according to claim 6, characterized in that The cooling water sprayer (82) is mounted on the positioning plate (84) via an adjusting bolt (85); a plurality of water outlet holes (86) are provided on the end of the cooling water sprayer (82) facing the workpiece.

8. The induction hardening device (8) according to claim 6 or 7, characterized in that The cooling water sprayer (82) is located below the heating inductor (81); the end of the heating inductor (81) facing the workpiece is circular and surrounds the outside of the workpiece.

9. The induction hardening device (8) according to claim 6 or 7, characterized in that The cooling water sprayer (82) is located below the heating inductor (81); the ends of the heating inductor (81) and the cooling water sprayer (82) facing the workpiece are both arc-shaped.

10. The induction hardening device (8) according to claim 6 or 7, characterized in that The ends of the heating sensor (81) and the cooling water sprayer (82) facing the workpiece are both flat, and the ends of the heating sensor (81) and the cooling water sprayer (82) are both provided with bends.

Images