Engineering machine drive wheel induction quenching device

Abstract

The application relates to an engineering machinery driving wheel induction quenching device, which comprises an inductor (2), the inductor (2) comprises a first induction part (21), a second induction part (22) and a third induction part, the first induction part (21) is configured to heat a first inner side surface (121) of a driving wheel (1), the second induction part (22) is configured to heat a second inner side surface (122) of the driving wheel (1), and the third induction part is configured to heat an outer peripheral surface of the driving wheel (1); wherein the driving wheel (1) is provided with a plurality of grooves (12) arranged at intervals in the circumferential direction, the grooves (12) extend from the outer peripheral surface of the driving wheel (1) to the center of the driving wheel (1), and the grooves (12) comprise the first inner side surface (121) and the second inner side surface (122) arranged oppositely. The application can heat different heat treatment surfaces of the driving wheel respectively by arranging a plurality of induction parts, and the heating uniformity of the different heat treatment surfaces is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, and in particular to an induction hardening device for driving wheels of engineering machinery. Background Technology

[0002] The drive wheels used in crawler cranes have an irregular shape. Due to the characteristics of the wheel's tooth structure and the unique nature of the heat treatment area, they cannot be heat-treated using the overall induction heating quenching method. However, using traditional single-tooth induction heating quenching can lead to problems such as unstable coupling gap between the inductor and the workpiece, resulting in uneven heating, and even short circuits and sparks caused by the inductor contacting the workpiece during heating, causing burns to the workpiece surface.

[0003] In addition, some related technologies use the method of "overall heating + local cooling" to quench the irregular drive wheels of crawler cranes. Although this method can obtain a relatively ideal surface hardening area, the part of the workpiece that is heated but not sprayed with cooling is equivalent to normalizing, which leads to changes in the microstructure and reduction in mechanical properties in that area, thereby affecting the performance of the workpiece.

[0004] It should be noted that the information disclosed in the background section of this invention is intended only to enhance the understanding of the overall background of this invention, and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] This invention provides an induction hardening device for drive wheels of engineering machinery, which can effectively improve the heat treatment uniformity of the drive wheel's surface.

[0006] According to one aspect of the present invention, an induction hardening device for drive wheels of engineering machinery is provided, comprising an inductor, the inductor including:

[0007] The first sensing unit is configured to heat the first inner surface of the drive wheel;

[0008] The second sensing unit is configured to heat the second inner surface of the drive wheel; and

[0009] The third sensing unit is configured to heat the outer peripheral surface of the drive wheel;

[0010] The drive wheel is provided with a plurality of grooves arranged at intervals along the circumference. The grooves extend from the outer circumference of the drive wheel to the center of the drive wheel. The grooves include a first inner side and a second inner side arranged opposite to each other.

[0011] In some embodiments, the third sensing portion includes a first sensing portion, a second sensing portion, and a third sensing portion disposed between the first sensing portion and the second sensing portion. The outer peripheral surface of the drive wheel includes a first outer peripheral surface, a second outer peripheral surface, and a third outer peripheral surface disposed circumferentially around the groove. The first sensing portion is used to heat the first outer peripheral surface, the second sensing portion is used to heat the second outer peripheral surface, and the third sensing portion is used to heat the third outer peripheral surface.

[0012] In some embodiments, the first sensing part and the first sensing segment are integrally formed into a first sensing body, the second sensing part and the second sensing segment are integrally formed into a second sensing body, and the first sensing body and the second sensing body are respectively connected to the third sensing segment.

[0013] In some embodiments, an insulating element is provided between the first sensing body and the second sensing body.

[0014] In some embodiments, the first sensing part is U-shaped; and / or, the second sensing part is U-shaped.

[0015] In some embodiments, the sensor further includes a first spacer disposed on one side of the first sensing portion near the bottom surface of the groove, so as to maintain a preset gap between the first sensing portion and the drive wheel; and / or, the sensor further includes a second spacer disposed on one side of the second sensing portion near the bottom surface of the groove, so as to maintain a preset gap between the second sensing portion and the drive wheel.

[0016] In some embodiments, the sensor further includes two third spacers, which are respectively disposed at both ends of the side of the third sensing portion near the third outer peripheral surface, so as to maintain a preset gap between the third sensing portion and the drive wheel.

[0017] In some embodiments, the sensor further includes a plurality of magnetic conductors respectively disposed in the first sensing part, the second sensing part and / or the third sensing part.

[0018] In some embodiments, the induction hardening device for the drive wheel of engineering machinery further includes a spraying device configured to spray coolant onto the drive wheel.

[0019] In some embodiments, the spraying device includes a first spraying section, a second spraying section, and a third spraying section. The first spraying section is used to spray coolant onto a first inner surface and a first outer peripheral surface. The second spraying section is used to spray coolant onto a second inner surface and a second outer peripheral surface. The third spraying section is used to spray coolant onto a third outer peripheral surface.

[0020] In some embodiments, the induction hardening device for the drive wheel of engineering machinery further includes a drive unit and a fixed plate. The sensor and the spraying device are both mounted on the fixed plate, and the spraying device is disposed above or below the sensor. The drive unit is configured to drive the sensor and the spraying device to move in the vertical direction.

[0021] In some embodiments, the induction hardening device for the drive wheel of engineering machinery further includes a threaded rod and a mounting plate. The sensor is threadedly connected to the mounting plate via the threaded rod, and the mounting plate is used to connect to a fixed component to maintain the stability of the sensor during operation.

[0022] Based on the above technical solution, in the embodiments provided by the present invention, the sensor includes multiple sensing units, which can heat different heat-treated surfaces of the drive wheel respectively. This achieves the effect of heating different heat-treated surfaces in a targeted manner through different sensing units, so that different heat-treated surfaces can be specially heated, thereby effectively improving the heating uniformity of different heat-treated surfaces and greatly helping to obtain the ideal heat treatment effect in the end. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the drive wheel structure in one embodiment of the induction hardening device for the drive wheel of engineering machinery according to the present invention.

[0025] Figure 2 This is a schematic diagram of the inductor and spraying device in one embodiment of the induction hardening device for the drive wheel of engineering machinery of the present invention.

[0026] Figure 3 This is a schematic diagram of the inductor structure in one embodiment of the induction hardening device for the drive wheel of engineering machinery of the present invention.

[0027] Figure 4 This is a schematic diagram of the working state of an embodiment of the induction hardening device for the drive wheel of engineering machinery of the present invention.

[0028] Figure 5 This is a side view of an embodiment of the induction hardening device for the drive wheel of engineering machinery of the present invention in the working state.

[0029] Figure 6 This is a top view of an embodiment of the induction hardening device for the drive wheel of engineering machinery of the present invention in its working state.

[0030] Figure 7 This is a schematic diagram of the spray device in operation in one embodiment of the induction hardening device for the drive wheel of engineering machinery of the present invention.

[0031] In the picture:

[0032] 1. Drive wheel; 11. Drive wheel body; 12. Groove; 120. Heat-treated surface; 121. First inner surface; 122. Second inner surface; 123. First outer peripheral surface; 124. Second outer peripheral surface; 125. Third outer peripheral surface; 126. Groove bottom surface;

[0033] 2. Sensor; 20. Connector; 2a. First sensing body; 2b. Second sensing body; 2c. Insulating component; 21. First sensing part; 22. Second sensing part; 231. First sensing section; 232. Second sensing section; 233. Third sensing section; 24. Magnetic conductor; 25. First spacer; 26. Second spacer; 27. Third spacer; 28. Connecting plate; 29. ​​Reinforcing plate;

[0034] 3. Spraying device; 31. First spraying section; 32. Second spraying section; 33. Third spraying section; 4. Threaded rod; 41. Lifting lug; 5. Mounting plate; 6. Fixing plate. Detailed Implementation

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0037] refer to Figure 1 and Figure 2 As shown, in some embodiments of the induction hardening device for drive wheels of engineering machinery provided by the present invention, the induction hardening device includes an inductor 2, which includes a first inductor 21, a second inductor 22 and a third inductor. The first inductor 21 is configured to heat the first inner surface 121 of the drive wheel 1, the second inductor 22 is configured to heat the second inner surface 122 of the drive wheel 1, and the third inductor is configured to heat the outer peripheral surface of the drive wheel 1.

[0038] The drive wheel 1 is provided with a plurality of grooves 12 arranged circumferentially. The grooves 12 extend from the outer periphery of the drive wheel 1 to the center of the drive wheel 1. The grooves 12 include a plurality of heat treatment surfaces to be heated, such as a first inner surface 121 and a second inner surface 122 arranged opposite to each other.

[0039] In the embodiments provided by the present invention, the sensor includes multiple sensing units, which can heat different heat-treated surfaces of the drive wheel respectively. That is, each heat-treated surface has a corresponding sensing unit specifically for heating it, realizing the effect of targeted heating of different heat-treated surfaces through different sensing units. Even if the different heat-treated surfaces have different directions, that is, there is an angle between two adjacent heat-treated surfaces, different heat-treated surfaces can still be specifically heated, thereby effectively improving the heating uniformity of different heat-treated surfaces and greatly helping to obtain the ideal heat treatment effect in the end.

[0040] Since the tooth shape of the drive wheel 1 itself is an irregular structure, the groove 12 includes multiple heat treatment surfaces in different directions. That is, the different heat treatment surfaces are not parallel, but have a certain angle. Therefore, if the same induction part is used to heat multiple heat treatment surfaces at the same time, it may cause uneven heating of the heat treatment surfaces. However, the embodiment of the present invention can effectively improve the uniformity of heating by setting multiple different induction parts so that the induction parts correspond one-to-one with the heat treatment surfaces on the drive wheel 1.

[0041] like Figure 3 As shown, in some embodiments, the third sensing part includes a first sensing portion 231, a second sensing portion 232, and a third sensing portion 233 disposed between the first sensing portion 231 and the second sensing portion 232. The outer peripheral surface of the drive wheel 1 includes a first outer peripheral surface 123, a second outer peripheral surface 124 arranged circumferentially around the groove 12, and a third outer peripheral surface 125 located between the first outer peripheral surface 123 and the second outer peripheral surface 124. The first sensing portion 231 is used to heat the first outer peripheral surface 123, the second sensing portion 232 is used to heat the second outer peripheral surface 124, and the third sensing portion 233 is used to heat the third outer peripheral surface 125.

[0042] Since the first outer peripheral surface 123, the second outer peripheral surface 124 and the third outer peripheral surface 125 have different orientations, that is, there is an angle between two adjacent outer peripheral surfaces, the outer peripheral surface is divided into different regions and corresponding induction distributions are set, which can further improve the heating uniformity of the outer peripheral surface.

[0043] In some embodiments, the first sensing part 21 and the first sensing sub-part 231 are integrally formed as the first sensing body 2a, and the second sensing part 22 and the second sensing sub-part 232 are integrally formed as the second sensing body 2b. The first sensing body 2a and the second sensing body 2b are respectively connected to the third sensing sub-part 233. Moreover, the interiors of the first sensing body 2a, the second sensing body 2b and the third sensing sub-part 233 are interconnected, and a circulating cooling medium, such as cooling water, flows inside them.

[0044] By making the first sensing part 21 and the first sensing sub-part 231 into a single integrated structure, and the second sensing part 22 and the second sensing sub-part 232 into a single integrated structure, the number of parts of the sensor can be reduced, the structure of the sensor can be simplified, and the overall installation of the sensor can be facilitated. At the same time, compared with the solution of making all parts of the sensor into a single large component, making the first sensing part 21 and the first sensing sub-part 231 into one integrated structure and the second sensing part 22 and the second sensing sub-part 232 into another integrated structure can effectively reduce the volume of each component of the sensor and avoid the influence of large components on the induction heating effect.

[0045] In some embodiments, an insulating member 2c is provided between the first sensing body 2a and the second sensing body 2b. By providing the insulating member 2c, the first sensing body 2a and the second sensing body 2b can be kept insulated, preventing the first sensing body 2a from contacting the second sensing body 2b and causing electrical connection damage to the sensor 2.

[0046] Insulating component 2c can be made of materials such as polytetrafluoroethylene.

[0047] In some embodiments, the first sensing part 21 is U-shaped; and / or, the second sensing part 22 is U-shaped.

[0048] By setting the first sensing part 21 and the second sensing part 22 in a U-shape, the area of ​​induction heating can be increased. At the same time, the blank area in the middle of the U-shape can effectively prevent heat accumulation during heating, effectively control the temperature of the sensing part itself, and help protect the sensing part and improve its service life. Moreover, since a circulating cooling medium flows inside the sensor 2, setting the first sensing part 21 and the second sensing part 22 in a U-shape also helps to improve the uniformity of heating and facilitates the overall arrangement of the sensor 2.

[0049] In some embodiments, the sensor 2 further includes a first spacer 25 disposed on one side of the first sensing part 21 near the bottom surface 126 of the groove 12, so as to maintain a preset gap between the first sensing part 21 and the drive wheel 1; and / or, the sensor 2 further includes a second spacer 26 disposed on one side of the second sensing part 22 near the bottom surface 126 of the groove 12, so as to maintain a preset gap between the second sensing part 22 and the drive wheel 1.

[0050] The first spacer 25 protrudes from the surface of the first sensing part 21, thereby forming a gap between the first sensing part 21 and the drive wheel 1. The second spacer 26 protrudes from the surface of the second sensing part 22, thereby forming a gap between the second sensing part 22 and the drive wheel 1.

[0051] The first spacer 25 is also used to keep the first sensing part 21 and the drive wheel 1 insulated, and the second spacer 26 is also used to keep the second sensing part 22 and the drive wheel 1 insulated.

[0052] By setting the first spacer 25 and the second spacer 26, a preset gap can be maintained between the first sensing part 21 and the drive wheel 1, and between the second sensing part 22 and the drive wheel 1. This ensures that the gap between the sensor 2 and the drive wheel 1 remains relatively stable during operation, preventing the first sensing part 21 or the second sensing part 22 from contacting the drive wheel 1 and causing damage to the sensor 2. Furthermore, maintaining the preset gap between the first sensing part 21 and the drive wheel 1, and between the second sensing part 22 and the drive wheel 1, also prevents the heat from the heated drive wheel 1 from being transferred back to the sensor 2, thus avoiding excessively high temperatures that could affect the lifespan of the sensor 2.

[0053] In some embodiments, the sensor 2 further includes two third spacers 27, which are respectively disposed at both ends of the side of the third sensing portion 233 near the third outer peripheral surface 125, so as to maintain a preset gap between the third sensing portion 233 and the drive wheel 1.

[0054] By providing the third spacer 27, a preset gap can be maintained between the third sensing portion 233 and the drive wheel 1. This ensures that the gap between the sensor 2 and the drive wheel 1 remains relatively stable during operation, preventing the third sensing portion 233 from contacting the drive wheel 1 and causing damage to the sensor 2. Furthermore, maintaining the preset gap between the third sensing portion 233 and the drive wheel 1 also prevents the heat from the heated drive wheel 1 from being transferred back to the sensor 2, thus avoiding excessively high temperatures in the sensor 2 and affecting its lifespan.

[0055] The third spacer 27 protrudes from the surface of the third sensing portion 233 to form a gap between the third sensing portion 233 and the drive wheel 1. The third spacer 27 also serves to maintain insulation between the third sensing portion 233 and the drive wheel 1.

[0056] The first spacer 25, the second spacer 26, and the third spacer 27 can be made of high-temperature resistant insulating materials, such as ceramic materials. The first spacer 25, the second spacer 26, and the third spacer 27 can be made of the same material or different materials.

[0057] In some embodiments, the sensor 2 further includes a plurality of magnetic conductors 24 respectively disposed in the first sensing part 21, the second sensing part 22 and / or the third sensing part.

[0058] By setting the magnetic conductor 24, the uniformity of induction heating can be further improved.

[0059] In some embodiments, the first sensing part 21, the second sensing part 22 and / or the third sensing part can be in the form of a square tube, and the magnetic conductor 24 can be in the form of a U-shape, so that the magnetic conductor 24 covers three sides of the first sensing part 21, the second sensing part 22 and / or the third sensing part, while the side facing the heat treatment surface of the drive wheel 1 is not covered by the magnetic conductor 24, that is, the opening of the magnetic conductor 24 faces the heat treatment surface of the drive wheel 1 to be heated. The magnetic conductor 24 has a strong driving effect, which can improve the heating effect.

[0060] In some embodiments, the induction hardening device for the drive wheel of engineering machinery further includes a spraying device 3, which is configured to spray coolant onto the drive wheel 1. By providing the spraying device 3, coolant can be sprayed onto the drive wheel 1, which is then cooled after being heated by the inductor 2, thus achieving a hardening effect.

[0061] In some embodiments, the spraying device 3 includes a first spraying section 31, a second spraying section 32, and a third spraying section 33. The first spraying section 31 is used to spray coolant onto the first inner surface 121 and the first outer peripheral surface 123. The second spraying section 32 is used to spray coolant onto the second inner surface 122 and the second outer peripheral surface 124. The third spraying section 33 is used to spray coolant onto the third outer peripheral surface 125.

[0062] By setting up multiple spray nozzles, coolant can be sprayed onto different heat-treated surfaces of the drive wheel 1, achieving the effect of targeted spraying of coolant onto different heat-treated surfaces. This helps to control the uniformity and synchronization of cooling and improve the cooling effect.

[0063] Among them, such as Figure 7As shown, the first spray section 31 is arranged at an angle relative to the first inner side surface 121, and the height of the first spray section 31 is greater than the height of the first inner side surface 121. This allows the coolant sprayed by the first spray section 31 to simultaneously reach the first inner side surface 121 and the second outer peripheral surface 124, thereby simultaneously cooling the first inner side surface 121 and the second outer peripheral surface 124. Similarly, the second spray section 32 is arranged at an angle relative to the second inner side surface 122, and the height of the second spray section 32 is greater than the height of the second inner side surface 122. This allows the coolant sprayed by the second spray section 32 to simultaneously reach the second inner side surface 122 and the second outer peripheral surface 124, thereby simultaneously cooling the second inner side surface 122 and the second outer peripheral surface 124.

[0064] In some embodiments, the induction hardening device for the drive wheel of engineering machinery further includes a drive device and a fixed plate 6. The sensor 2 and the spraying device 3 are both mounted on the fixed plate 6. The spraying device 3 is disposed above or below the sensor 2. The drive device is configured to drive the sensor 2 and the spraying device 3 to move in the vertical direction.

[0065] The sensor 2 can be installed on the quenching transformer, and the spray device 3 is also connected to the sensor 2. The driving device drives the quenching transformer to move up and down, so as to drive the sensor 2 and the spray device 3 to move up and down.

[0066] By mounting both the sensor 2 and the spray device 3 on the fixed plate 6, the sensor 2 and the spray device 3 are fixed together in the vertical direction. In this way, when the fixed plate 6 is driven up and down by the drive device, the sensor 2 and the spray device 3 can move up and down together.

[0067] After heating is completed by the sensor 2, the fixed plate 6 can be moved upward by the drive device. The sensor 2 and the spray device 3 move upward synchronously, so that the sensor 2 is away from the heat treatment surface of the drive wheel 1, while the spray device 3 is aligned with the heat treatment surface of the drive wheel 1, so as to cool the heat treatment surface of the drive wheel 1 after heating.

[0068] By setting the fixing plate 6, the relative positions of the sensor 2 and the spray device 3 can be kept stable, as well as the relative positions of the sensor 2, the spray device 3, and the drive wheel 1. After heating is completed, the spray device 3 can quickly and accurately reach the cooling position, thereby ensuring the timeliness, simultaneity, and consistency of cooling speed of the heat-treated surface of the drive wheel 1.

[0069] In some embodiments, the induction hardening device for the drive wheel of engineering machinery further includes a threaded rod 4 and a mounting plate 5. The sensor 2 is threadedly connected to the mounting plate 5 via the threaded rod 4. The mounting plate 5 is used to connect to a fixed component to maintain the stability of the sensor 2 during operation.

[0070] Among them, the fixed component can be the main body of the equipment that is fixed to the ground.

[0071] By incorporating the threaded rod 4 and mounting plate 5, the stability of the sensor 2 during operation can be effectively maintained, preventing it from shaking and affecting the heating effect. Shaking during operation could also cause the sensor 2 to come into contact with the drive wheel 1, potentially leading to a short circuit and burnout. Therefore, the threaded rod 4 and mounting plate 5 improve the heating effect and effectively protect the sensor 2.

[0072] The structure and working process of one embodiment of the induction hardening device for engineering machinery drive wheels of the present invention are described below:

[0073] like Figure 1 As shown, the drive wheel 1 includes a drive wheel body 11, and a plurality of grooves 12 are arranged at intervals along the circumference of the drive wheel body 11. The inside and the outer periphery of the grooves 12 are the heat treatment surfaces 120 of the drive wheel 1 to be heated.

[0074] like Figure 2 As shown, the induction hardening device for the drive wheel of engineering machinery includes an inductor 2, a spraying device 3, a threaded rod 4, a mounting plate 5, and a fixing plate 6.

[0075] Both sensor 2 and spray device 3 are mounted on fixed plate 6. Four threaded rods 4 connect sensor 2 and mounting plate 5. Two of the threaded rods 4 are fixedly connected at one end to sensor 2 and at the other end to mounting plate 5 via threads. The other two threaded rods 4 are threaded at one end to lifting lugs 41 located on both sides of sensor 2 and at the other end to mounting plate 5 via threads. Mounting plate 5 is connected to the main body of the equipment and remains relatively fixed to the main body, thus keeping sensor 2 relatively fixed and preventing it from shaking during operation.

[0076] The advantage of fixing two threaded rods 4 to the sensor 2 and connecting the other two threaded rods 4 to the sensor 2 by thread is that after connecting the two threaded rods 4 fixed to the sensor 2 to the mounting plate 5, it is convenient to connect the sensor 2 and the mounting plate 5 by the other two threaded rods 4, avoiding the increase in connection difficulty between the sensor 2 and the mounting plate 5 due to manufacturing errors.

[0077] The spray device 3 includes a first spray section 31, a second spray section 32 and a third spray section 33. The first spray section 31 is used to spray coolant onto the first inner surface 121 and the first outer peripheral surface 123. The second spray section 32 is used to spray coolant onto the second inner surface 122 and the second outer peripheral surface 124. The third spray section 33 is used to spray coolant onto the third outer peripheral surface 125.

[0078] The first spray section 31 and the second spray section 32 have a preset included angle. The third spray section 33 is located below the first spray section 31 and the second spray section 32.

[0079] The spray device 3 is fixedly mounted on the fixing plate 6 by a threaded rod. The spray device 3 includes multiple interfaces through which coolant can be supplied to the first spray section 31, the second spray section 32 and the third spray section 33.

[0080] like Figure 3 As shown, the sensor 2 includes a first sensing body 2a and a second sensing body 2b, with an insulating member 2c provided between the first sensing body 2a and the second sensing body 2b.

[0081] The first sensing body 2a includes an integrally formed first sensing part 21 and a first sensing sub-part 231, and the second sensing body 2b includes an integrally formed second sensing part 22 and a second sensing sub-part 232.

[0082] Both the first sensing part 21 and the second sensing part 22 are generally U-shaped. The first sensing part 21 and the first sensing section 231 are roughly perpendicular, and the second sensing part 22 and the second sensing section 232 are roughly perpendicular.

[0083] The third sensing portion 233 is connected between the first sensing portion 231 and the second sensing portion 232, and the third sensing portion 233 is far away from the first sensing portion 21 and the second sensing portion 22.

[0084] A magnetic conductor 24 is provided on the first sensing part 21, the second sensing part 22, the first sensing sub-part 231, and the second sensing sub-part 232. Two magnetic conductors 24 are provided on the first sensing part 21 and the second sensing part 22 respectively.

[0085] A first spacer 25 and a second spacer 26 are respectively provided on the side of the first sensing part 21 and the second sensing part 22 near the drive wheel 1. A third spacer 27 is provided at each end of the third sensing part 233.

[0086] In addition to the first sensing part 21 and the first sensing section 231, the first sensing body 2a also includes a first extension section, which is L-shaped. In addition to the second sensing part 22 and the second sensing section 232, the second sensing body 2b also includes a second extension section, which is L-shaped. An insulating member 2c is disposed between the first extension section and the second extension section. A threaded rod 4 is also connected to the first extension section and the second extension section to prevent the sensor 2 from shaking due to excessive length of the first and second extension sections.

[0087] Both the end of the first extension section and the end of the second extension section are connected to a connecting plate 28, and the sensor 2 is mounted on the fixing plate 6 through the connecting plate 28.

[0088] Reinforcing plates 29 are provided at the bends of the first extension section and the second extension section to enhance the overall structural strength of the sensor 2.

[0089] Both the end of the first extension section and the end of the second extension section are provided with a connector 20, which can be connected to a cooling pipe to allow coolant to be introduced into the interior of the first sensing body 2a and the second sensing body 2b to cool the sensor 2 and prevent the heated drive wheel 1 from transferring heat to the sensor 2 and damaging the sensor 2.

[0090] like Figure 4 , Figure 5 and Figure 6 As shown, the heat treatment surface of the drive wheel 1 includes a first inner surface 121 of the groove 12, a second inner surface 122 of the groove 12, a first outer peripheral surface 123 and a second outer peripheral surface 124 arranged circumferentially around the groove 12, and a third outer peripheral surface 125 located between the first outer peripheral surface 123 and the second outer peripheral surface 124. The sensor 2 includes a first sensing part 21, a second sensing part 22, a first sensing portion 231, a second sensing portion 232, and a third sensing portion 233. The first sensing part 21... The first inner surface 121 is aligned with the first inner surface 121 to heat the first inner surface 121 of the drive wheel 1, the second sensing part 22 is aligned with the second inner surface 122 to heat the second inner surface 122 of the drive wheel 1, the first sensing part 231 is aligned with the first outer peripheral surface 123 to heat the first outer peripheral surface 123, the second sensing part 232 is aligned with the second outer peripheral surface 124 to heat the second outer peripheral surface 124, and the third sensing part 233 is aligned with the third outer peripheral surface 125 to heat the third outer peripheral surface 125.

[0091] After the sensor 2 has finished heating, the driving device can lift the sensor 2 upward so that the spray device 3 located below can move upward to the original heating position of the sensor 2, so that the spray device 3 is aligned with the heat treatment surface of the drive wheel 1 to cool the heat treatment surface.

[0092] Through the description of several embodiments of the induction hardening device for drive wheels of engineering machinery of the present invention, it can be seen that the embodiments of the induction hardening device for drive wheels of engineering machinery of the present invention can solve the technical problems in the related art, such as uneven heating of the heat treatment surface in different directions when heating the drive wheel hardening device for crawler cranes, unstable coupling gap between the inductor and the workpiece during heating, and asynchronous cooling of the heat treatment surface in different directions during cooling, and finally obtain an ideal heat treatment area and hardened layer distribution.

[0093] This invention, by providing corresponding induction units for different heat-treated surfaces, enables simultaneous and uniform heating of heat-treated surfaces in different directions of the drive wheel. Installing a magnetic conductor on the inductor further enhances heating uniformity. The inclusion of heat-insulating components, threaded rods, mounting plates, and fixing plates effectively ensures the stability of the coupling gap between the inductor and the drive wheel, preventing uneven heating of the heat-treated area due to unstable inductor heating gaps. Connecting the spray device to the inductor via the fixing plate allows the spray cooling device to quickly and accurately reach the heating position of the drive wheel for cooling, effectively ensuring timely and uniform cooling of the drive wheel's heating area and facilitating synchronous and uniform cooling of heat-treated surfaces in different directions.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can still be made to some technical features without departing from the principle of the present invention, and such modifications and equivalent substitutions should all be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. An induction hardening device for drive wheels of engineering machinery, characterized in that, Includes a sensor (2), said sensor (2) comprising: The first sensing unit (21) is configured to heat the first inner surface (121) of the drive wheel (1); The second sensing unit (22) is configured to heat the second inner surface (122) of the drive wheel (1); and The third sensing unit is configured to heat the outer peripheral surface of the drive wheel (1); The drive wheel (1) is provided with a plurality of grooves (12) arranged circumferentially. The grooves (12) extend from the outer periphery of the drive wheel (1) to the center of the drive wheel (1). The grooves (12) include a first inner side surface (121) and a second inner side surface (122) arranged opposite to each other. The third sensing part includes a first sensing part (231), a second sensing part (232), and a third sensing part (233) disposed between the first sensing part (231) and the second sensing part (232). The outer peripheral surface of the drive wheel (1) includes a first outer peripheral surface (123), a second outer peripheral surface (124), and a third outer peripheral surface (125) arranged circumferentially around the groove (12). The first sensing part (231) is used to heat the first outer peripheral surface (123), the second sensing part (232) is used to heat the second outer peripheral surface (124), and the third sensing part (233) is used to heat the third outer peripheral surface (125). The first sensing part (21) and the first sensing part (231) are integrally formed into a first sensing body (2a), and the second sensing part (22) and the second sensing part (232) are integrally formed into a second sensing body (2b). The first sensing body (2a) and the second sensing body (2b) are respectively connected to the third sensing part (233). Moreover, the interiors of the first sensing body (2a), the second sensing body (2b), and the third sensing section (233) are connected, and a circulating cooling medium flows inside them.

2. The induction hardening device for engineering machinery drive wheels according to claim 1, characterized in that, An insulating element (2c) is provided between the first sensing body (2a) and the second sensing body (2b).

3. The induction hardening device for engineering machinery drive wheels according to claim 1, characterized in that, The sensor (2) further includes a first spacer (25), which is disposed on one side of the first sensing part (21) near the bottom surface (126) of the groove (12) to maintain a preset gap between the first sensing part (21) and the drive wheel (1); and / or, the sensor (2) further includes a second spacer (26), which is disposed on one side of the second sensing part (22) near the bottom surface (126) of the groove (12) to maintain a preset gap between the second sensing part (22) and the drive wheel (1).

4. The induction hardening device for engineering machinery drive wheels according to claim 1, characterized in that, The sensor (2) also includes two third spacers (27), which are respectively disposed at both ends of the side of the third sensing portion (233) near the third outer peripheral surface (125) to maintain a preset gap between the third sensing portion (233) and the drive wheel (1).

5. The induction hardening device for engineering machinery drive wheels according to claim 1, characterized in that, The sensor (2) further includes a plurality of magnetic conductors (24) respectively disposed in the first sensing part (21), the second sensing part (22) and / or the third sensing part.

6. The induction hardening device for engineering machinery drive wheels according to any one of claims 1 to 5, characterized in that, It also includes a spray device (3) configured to spray coolant onto the drive wheel (1).

7. The induction hardening device for engineering machinery drive wheels according to claim 1, characterized in that, It also includes a spray device (3), which includes a first spray section (31), a second spray section (32) and a third spray section (33). The first spray section (31) is used to spray coolant onto the first inner surface (121) and the first outer peripheral surface (123). The second spray section (32) is used to spray coolant onto the second inner surface (122) and the second outer peripheral surface (124). The third spray section (33) is used to spray coolant onto the third outer peripheral surface (125).

8. The induction hardening device for engineering machinery drive wheels according to claim 6, characterized in that, It also includes a drive device and a fixed plate (6), the sensor (2) and the spray device (3) are both mounted on the fixed plate (6), the spray device (3) is located above or below the sensor (2), and the drive device is configured to drive the sensor (2) and the spray device (3) to move in the vertical direction.

9. The induction hardening device for engineering machinery drive wheels according to claim 1, characterized in that, It also includes a threaded rod (4) and a mounting plate (5), the sensor (2) being threadedly connected to the mounting plate (5) via the threaded rod (4), the mounting plate (5) being used to connect to a fixed component to maintain the stability of the sensor (2) during operation.

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