Easy-to-disassemble induction heating device

Abstract

The present invention relates to an inductive heating device, and in particular to an easily detachable inductive heating device, comprising at least two heating coil supports (1) and a coil (2) wound on the heating coil supports (1), wherein the two heating coil supports (1) comprise an outer heating coil support and an inner heating coil support, wherein the inner heating coil support is arranged in the outer heating coil support to form a heating space suitable for accommodating a heated object between the outer heating coil support and the inner heating coil support; each heating coil support (1) comprises a pair of coil group support rings (11) arranged opposite to each other, wherein a plurality of coil group support rods (12) are detachably connected between the two coil group support rings (11), wherein the diameter of the coil group support ring (11) is adjustable, and the length of the coil group support rods (12) is adjustable, and the coil (2) is connected to a movable power supply host (3). The easily detachable inductive heating device of the present invention is easy to assemble and disassemble, and can be easily assembled into a desired size.

Description

Technical Field

[0001] The invention relates to an induction heating device, in particular to an easily detachable induction heating device. Background Art

[0002] In some large equipment, the bearings and bearing seats usually adopt an interference fit to ensure the reliability of the combination between the two.

[0003] Heat assembly and cold assembly are two assembly methods that cause less damage to parts. Among them, heat assembly is more economical. It is a method of changing the inner diameter and outer diameter of the two parts to be matched to obtain different temperatures to facilitate interference fit.

[0004] When heating parts, the existing heat assembly method generally uses local heating and other heating forms. The heating is uneven, resulting in inconsistent overall temperatures of the parts and large temperature differences. This can easily lead to changes in the internal stress of the parts and uneven distribution, which has a great impact on the mechanical properties of the parts. In severe cases, it will greatly affect the service life of the parts. In addition, the size of the existing heating devices is generally fixed and the structure is complex. It is not easy to move after deployment, which makes it difficult to adapt to parts of various sizes and is not suitable for outdoor operations.

[0005] In view of this, it is necessary to provide an easily disassembled induction heating device. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide an easily disassembled induction heating device, which is easy to disassemble and assemble, and can be conveniently assembled into a required size.

[0007] In order to solve the above technical problems, the present invention provides an easily detachable induction heating device, comprising at least two heating coil brackets and coils wound on the heating coil brackets, the heating coil brackets comprising an outer heating coil bracket and an inner heating coil bracket, the inner heating coil bracket being placed in the outer heating coil bracket to form a heating space suitable for accommodating a heated part between the outer heating coil bracket and the inner heating coil bracket; each of the heating coil brackets comprises a pair of oppositely arranged coil group support rings, a plurality of coil group support rods are detachably connected between two of the coil group support rings, the diameter of the coil group support ring is adjustable, the length of the coil group support rod is adjustable, and the coil is connected to a movable power supply host.

[0008] Specifically, each of the coil group support rings is formed by connecting a plurality of support ring assemblies so that the diameter of the coil group support ring can be adjusted through the connected support ring assemblies. The support ring assemblies are fan-shaped plate structures, and each of the support ring assemblies is provided with a connecting hole at one end and a connecting rod at the other end. The connecting rod passes through the connecting hole to realize the connection between two adjacent support ring assemblies.

[0009] More specifically, a threaded structure is provided on the connecting rod, and after the connecting rod passes through the connecting hole, the threaded structure cooperates with a nut to achieve fixed connection between two adjacent support ring assemblies.

[0010] Furthermore, a support rod connection structure is provided in the middle of each support ring assembly to be connected to the coil group support rod via the support rod connection structure.

[0011] Specifically, the support rod connection structure is a through hole structure, and both ends of the coil group support rod are provided with internal thread structures, so that bolts can pass through the through hole structure and cooperate with the internal thread structure to achieve the connection between the coil group support rod and the coil group support ring.

[0012] Specifically, the coil group support rod includes a coil group base rod and a coil group telescopic rod nested in the coil group base rod, the coil group base rod is provided with a plurality of base rod limiting holes along the rod length direction, the coil group telescopic rod is provided with a telescopic rod limiting hole, and a limiting pin sequentially passes through the base rod limiting hole and the telescopic rod limiting hole to achieve the fixation of the coil group base rod and the coil group telescopic rod.

[0013] Furthermore, the coil group base rod and the coil group telescopic rod are both provided with a plurality of coil group hanging devices for fixing the coils along the rod length direction.

[0014] Furthermore, the coil group hanging device on the coil group base rod is formed as an integrally formed part with the coil group base rod; the coil group telescopic rod is provided with a plurality of groove limiting structures along the rod length direction, and the coil group hanging device is partially accommodated in the groove limiting structure and is detachably connected to the coil group telescopic rod.

[0015] Furthermore, the movable power source host includes a generator, a frequency converter and a power controller.

[0016] Furthermore, the easily detachable inductive heating device also includes a base, the heating coil bracket is connected to the base, and a heat insulation layer is provided on the connecting surface between the base and the heating coil bracket.

[0017] Through the above technical scheme, the easily detachable inductive heating device provided by the present invention sets the coil group support ring to have an adjustable diameter, and sets the coil group support rod to have an adjustable length, that is, the size of the heating coil bracket can be easily adjusted, so that it is convenient to assemble a heating coil of appropriate size for inductive heating, so that the easily detachable inductive heating device can adapt to the sizes of more parts; an outer heating coil bracket and an inner heating coil bracket are set, and the inner heating coil bracket is placed in the outer heating coil bracket to form a heating space suitable for accommodating the part to be heated between the outer heating coil bracket and the inner heating coil bracket, and this setting can make the formed heating space suitable for The inner ring and outer ring of the bearing can be heated at the same time, so that the heating of the entire bearing is more uniform and the mechanical properties of the bearing are less affected. In addition, because the coil group support rod is detachably connected to the coil group support ring, the heating coil bracket can be easily disassembled, so that the entire easily detachable inductive heating device can be easily disassembled and assembled, thereby achieving the purpose of easy transportation. This makes it possible to disassemble and transport the easily detachable inductive heating device after installing the first variable pitch bearing of the wind turbine during outdoor operations, such as installing the variable pitch bearing of the wind turbine, and then transport it to the assembly site of the next wind turbine for reassembly, which is more flexible and convenient and can save costs.

[0018] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the heating coil support and the coil in the easily detachable induction heating device of the present invention;

[0020] Figure 2 It is a connection diagram of the support ring assembly in the easily detachable induction heating device of the present invention;

[0021] Figure 3 It is a structural schematic diagram of a support ring assembly in an easily detachable induction heating device of the present invention;

[0022] Figure 4 It is a structural schematic diagram of a coil group support rod in the easily detachable induction heating device of the present invention.

[0023] Description of Reference Numerals

[0024] 1- Heating coil support 11- Coil assembly support ring

[0025] 111-Support ring assembly 1111-Connection hole

[0026] 1112-connecting rod 1113-support rod connection structure

[0027] 12-coil group support rod 121-coil group base rod

[0028] 1211-base rod limit hole 122-coil assembly telescopic rod

[0029] 1221- telescopic rod limiting hole 1222- groove limiting structure

[0030] 123-Coil assembly hook-up device 2-Coil

[0031] 3-bolt 4-base DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0034] like Figure 1 As shown, in one embodiment of the easily detachable inductive heating device provided by the present invention, the easily detachable inductive heating device includes at least two heating coil supports 1 and a coil 2 wound on the heating coil supports 1, wherein the heating coil support 1 includes an outer heating coil support and an inner heating coil support, and the inner heating coil support is placed in the outer heating coil support so as to form a heating space suitable for accommodating the heated part between the outer heating coil support and the inner heating coil support; specifically, each heating coil support 1 includes a pair of oppositely arranged coil group support rings 11, and a plurality of coil group support rods 12 are detachably connected between the two coil group support rings 11, and the diameter of the coil group support ring 11 is adjustable, and the length of the coil group support rods 12 is adjustable; in addition, the coil 2 is connected to a movable power supply host; it can be understood that the coil 2 should have a certain flexibility to facilitate winding.

[0035] Through the above technical scheme, the easily detachable inductive heating device provided by the present invention sets the coil group support ring 11 to be adjustable in diameter, and sets the coil group support rod 12 to be adjustable in length, that is, to make the size of the heating coil bracket 1 easy to adjust, so that it is easy to assemble a heating coil of suitable size for inductive heating, so that the easily detachable inductive heating device can adapt to the sizes of more parts; an outer heating coil bracket and an inner heating coil bracket are set, and the inner heating coil bracket is placed in the outer heating coil bracket to form a heating space suitable for accommodating the part to be heated between the outer heating coil bracket and the inner heating coil bracket. Taking the part to be heated as a bearing as an example, the formed heating space is suitable for heating the inner ring and the outer ring of the bearing at the same time, so that the heating of the entire bearing is more uniform, so that the temperature difference between the inner ring and the outer ring can be controlled within 15°C, and the temperature difference in the upper and lower thickness directions is controlled within 10°C, which has little effect on the mechanical properties of the bearing, and the same heating can make the time required for heating the bearing shorter, generally can be controlled within 40 minutes, and the heat loss will be relatively The electric induction heating has a smaller size and a higher thermal efficiency, which can save energy. In addition, since the coil group support rod 12 is detachably connected to the coil group support ring 11, the heating coil bracket 1 can be easily disassembled, so that the entire easily detachable inductive heating device can be easily disassembled and assembled, achieving the purpose of easy transportation. This allows outdoor operations, such as installing the variable pitch bearing of a wind turbine, to disassemble and transport the easily detachable inductive heating device after installing the variable pitch bearing of the first wind turbine, and then to assemble it at the assembly site of the next wind turbine. After the heating coil bracket 1 is assembled, the coil 2 is wound around the heating coil bracket 1 and connected to a movable power supply host, so that the movable power supply host supplies power to the coil 2, thereby realizing the inductive heating operation. Since the easily detachable inductive heating device is disassembled and transported, and a movable power supply is used, the easily detachable inductive heating device of the present invention has low requirements for the work site, is extremely suitable for outdoor operations, is flexible and convenient to transport and disassemble, and can save costs.

[0036] Furthermore, in one embodiment of the easily detachable induction heating device provided by the present invention, in order to achieve the adjustable diameter of the coil group support ring 11, each coil group support ring 11 can be formed by connecting a plurality of support ring components 111. Specifically, Figure 2 and Figure 3As shown, the support circle assembly 111 is a fan-shaped ring plate structure, one end of each support circle assembly 111 is provided with a connecting hole 1111, and the other end is provided with a connecting rod 1112, the connecting rod 1112 passes through the connecting hole 1111 to achieve the connection between two adjacent support circle assemblies 111, and multiple support circle assemblies 111 are connected end to end to form a closed structure. It can be understood that the size of the coil group support circle 11 can be determined by the number of support circle assemblies 111 that constitute the coil group support circle 11, so that the diameter of the coil group support circle 11 can be adjusted by increasing or decreasing the number of support circle assemblies 111; in addition, since the support circle assembly 111 is a fan-shaped ring plate structure, the formed closed structure can be more similar to a circular ring, so that when the bearing or gear is heated, the length of the coil to be wound is shorter, which is convenient for the assembly of the easily disassembled inductive heating device.

[0037] Further, in one embodiment of the easily detachable induction heating device provided by the present invention, in order to make the formed coil assembly support ring 11 more stable (i.e., the shape is fixed), it is necessary to fix two adjacent support ring components 111 together. Specifically, Figure 3 As shown, a threaded structure can be provided on the connecting rod 1112. When assembling the device, the connecting rod 1112 on the first support circle assembly 111 is passed through the connecting hole 1111 of the second support circle assembly 111, and then the threaded structure cooperates with the nut to achieve a fixed connection between the two adjacent support circle assemblies 111, thereby achieving a shape fixation of the coil group support circle 11, thereby ensuring that the heating coil bracket 1 can remain stable without deformation when the coil 2 is wound.

[0038] Further, in one embodiment of the easily detachable induction heating device provided by the present invention, a support rod connecting structure 1113 is provided in the middle of each support ring assembly 111, so that it can be connected to the coil assembly support rod 12 via the support rod connecting structure 1113. Specifically, Figure 3 and Figure 4 As shown, the support rod connection structure 1113 can be set as a through hole structure, and both ends of the coil group support rod 12 are provided with an internal thread structure, so that the bolt 3 can pass through the through hole structure and cooperate with the internal thread structure to realize the connection between the coil group support rod 12 and the coil group support circle 11, thereby completing the installation of the heating coil bracket 1 and ensuring the structural stability of the heating coil bracket 1. It can be understood that the coil group support rod 12 should preferably be arranged at equal intervals along the coil group support circle 11, for example, each support circle assembly 111 in the coil group support circle 11 is connected to a coil group support rod 12, or every other support circle assembly 111 is connected to a coil group support rod 12.

[0039] Furthermore, in one embodiment of the easily detachable induction heating device provided by the present invention, Figure 4 As shown, in order to achieve adjustable length of the coil group support rod 12, the coil group support rod 12 can be configured to include a coil group base rod 121 and a coil group telescopic rod 122 nested in the coil group base rod 121, wherein the coil group base rod 121 is provided with a plurality of base rod limiting holes 1211 along the rod length direction, and the coil group telescopic rod 122 is provided with a telescopic rod limiting hole 1221, so that the length of the coil group support rod 12 can be adjusted by telescoping the coil group telescopic rod 122, and when the telescopic rod limiting hole 1221 is adjusted to correspond to the corresponding base rod limiting hole 1211, and the total length of the coil group support rod 12 reaches the desired target length, the limiting pin is sequentially passed through the base rod limiting hole 1211 and the telescopic rod The limiting hole 1221 is used to achieve the fixation between the coil group base rod 121 and the coil group telescopic rod 122, so as to achieve the fixation of the length of the coil group support rod 12; it can be understood that the telescopic rod limiting hole 1221 can be set to two, and the fixation between the coil group base rod 121 and the coil group telescopic rod 122 is achieved by two limiting pins during installation, so that the fixation between the coil group base rod 121 and the coil group telescopic rod 122 can be made more reliable, especially when the coil group telescopic rod 122 is extended to the extreme position, the reliability of the fixation between the coil group base rod 121 and the coil group telescopic rod 122 can still be guaranteed; in addition, elastic positioning pins can also be set on the coil group telescopic rod 122.

[0040] Furthermore, in one embodiment of the easily detachable induction heating device provided by the present invention, Figure 4 As shown, the coil group base rod 121 and the coil group telescopic rod 122 are both provided with a plurality of coil group hanging devices 123 for fixing the coil 2 along the rod length direction. The coil group hanging devices 123 can not only hang the coil 2, but also guide the coil 2. Of course, it can be understood that, for the convenience of operation, the extension direction of the coil group hanging device 123 should be inconsistent with the opening direction of the base rod limiting hole 1211 and the telescopic rod limiting hole 1221. For example, taking the coil group base rod 121 and the coil group telescopic rod 122 as square column rods, as shown in FIG. Figure 4 As shown, the extension direction of the coil assembly hanging device 123 can be set to be perpendicular to the opening direction of the base rod limiting hole 1211 and the telescopic rod limiting hole 1221. In addition, since the coil assembly telescopic rod 122 needs to move in the coil assembly base rod 121, in order to facilitate the movement of the coil assembly telescopic rod 122, the coil assembly hanging device 123 can be set to be detachably connected to the coil assembly telescopic rod 122, so that when the coil assembly telescopic rod 122 is moved and fixed at a desired position, the coil assembly hanging device 123 is installed on the coil assembly telescopic rod 122. Specifically, as shown in FIG. Figure 4As shown, a plurality of groove limiting structures 1222 can be provided along the length direction of the coil group telescopic rod 122, so that the coil group hanging device 123 can be partially accommodated in the groove limiting structure 1222, so that the coil group hanging device 123 can be limited by the groove limiting structure 1222, thereby ensuring the stability of the connection between the coil group hanging device 123 and the coil group telescopic rod 122; and the coil group hanging device 123 on the coil group base rod 121 can be arranged to be formed as an integrally formed part with the coil group base rod 121, that is, integrally formed with the coil group base rod 121, thereby reducing the steps of installing the coil group hanging device 123 on the coil group base rod 121, making the installation of the heating coil bracket 1 more convenient.

[0041] Furthermore, in one embodiment of the easily detachable induction heating device provided by the present invention, Figure 1 As shown, the easily detachable inductive heating device of the present invention further includes a base 4. Since the easily detachable inductive heating device of the present invention is more often used to heat large parts, the base 4 needs to have sufficient strength. Therefore, the base 4 can be cast by cast iron, and in order to reduce the weight of the base 4 for easy transportation, the base 4 can be set as follows Figure 1 The "X"-shaped structure or "M"-shaped structure shown in the figure can reduce its own weight while ensuring strength; the heating coil bracket 1 is connected to the base 4, and a thermal insulation layer is provided on the connecting surface where the base 4 and the heating coil bracket 1 are connected. Since the base 4 is made of cast iron with fast thermal conductivity, the thermal insulation layer is designed to prevent the heated workpiece from directly contacting the cast iron base 4, thereby avoiding the contact part from being affected by the heat conduction of the base 4, the heat dissipation is fast, and the temperature difference with other parts is large, which has a serious impact on the mechanical properties of the heated part. In addition, the base 4 can prevent the heated part from contacting the ground, and can ensure the cleanliness of the heated part.

[0042] Furthermore, in one embodiment of the easily detachable inductive heating device provided by the present invention, the mobile power supply host includes a generator, a frequency converter and a power controller, wherein the generator may be a diesel generator, the frequency converter is used to adjust the electricity output by the generator to the required frequency and voltage, and the power controller can control the power output by the mobile power supply host to the coil 2, thereby being able to control the heating speed. In addition, in order to facilitate operation, the mobile power supply host can be intelligently transformed. Specifically, a memory may be provided in the mobile power supply host, in which parts of various models and sizes and their required heating temperatures and corresponding power output powers are preset, and information collection devices such as a code scanning input device and an operator identity confirmation device may be provided in the mobile power supply host, wherein the code scanning input device is used to obtain The information of the part to be heated can be obtained, so as to confirm the size of the part to be heated, the required heating temperature, the temperature difference to be controlled and other information, and this information can be displayed on the screen of the mobile power supply host. In addition, the mobile power supply host can also be provided with multiple temperature measuring devices as monitoring devices. Taking the part to be heated as a bearing as an example, the multiple temperature measuring devices are respectively arranged at the upper end of the inner ring of the bearing, the upper end of the outer ring and the upper end between the inner and outer rings, and the middle part of the inner ring of the bearing, the middle part of the outer ring and the middle part between the inner and outer rings, in addition to the lower end of the inner ring of the bearing, the lower end of the outer ring and the lower end between the inner and outer rings, so as to obtain the temperature difference between the inner and outer rings of the bearing and the temperature difference in the upper and lower thickness directions, and to monitor the temperature of the bearing in real time, so as to facilitate timely adjustment of the power output by the mobile power supply host to the coil 2.

[0043] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. An easily detachable induction heating device, characterized in that: The invention comprises at least two heating coil supports (1) and a coil (2) wound on the heating coil supports (1), wherein the heating coil supports (1) comprise an outer heating coil support and an inner heating coil support, wherein the inner heating coil support is arranged in the outer heating coil support to form a heating space suitable for accommodating a heated object between the outer heating coil support and the inner heating coil support; each heating coil support (1) comprises a pair of coil group support rings (11) arranged opposite to each other, wherein a plurality of coil group support rods (12) are detachably connected between the two coil group support rings (11), wherein the diameter of the coil group support ring (11) is adjustable, and the length of the coil group support rods (12) is adjustable, and the coil (2) is connected to a movable power supply host.

2. The easily detachable induction heating device according to claim 1, characterized in that: Each of the coil group support rings (11) is formed by connecting a plurality of support ring components (111) so that the diameter of the coil group support ring (11) can be adjusted through the connected support ring components (111); the support ring components (111) are fan-shaped plate structures; one end of each of the support ring components (111) is provided with a connecting hole (1111) and the other end is provided with a connecting rod (1112); the connecting rod (1112) passes through the connecting hole (1111) to achieve the connection between two adjacent support ring components (111).

3. The easily detachable induction heating device according to claim 2, characterized in that: The connecting rod (1112) is provided with a threaded structure, and after the connecting rod (1112) passes through the connecting hole (1111), the threaded structure cooperates with a nut to achieve fixed connection between two adjacent support ring assemblies (111).

4. The easily detachable induction heating device according to claim 3, characterized in that: A support rod connection structure (1113) is provided in the middle of each support ring assembly (111) so as to be connected to the coil assembly support rod (12) via the support rod connection structure (1113).

5. The easily detachable induction heating device according to claim 4, characterized in that: The support rod connection structure (1113) is a through-hole structure, and both ends of the coil group support rod (12) are provided with internal thread structures, so that bolts (3) can pass through the through-hole structure and cooperate with the internal thread structure to achieve the connection between the coil group support rod (12) and the coil group support ring (11).

6. The easily detachable induction heating device according to claim 5, characterized in that: The coil group support rod (12) comprises a coil group base rod (121) and a coil group telescopic rod (122) nested in the coil group base rod (121); the coil group base rod (121) is provided with a plurality of base rod limiting holes (1211) along the rod length direction; the coil group telescopic rod (122) is provided with a telescopic rod limiting hole (1221); a limiting pin passes through the base rod limiting hole (1211) and the telescopic rod limiting hole (1221) in sequence to achieve fixation of the coil group base rod (121) and the coil group telescopic rod (122).

7. The easily detachable induction heating device according to claim 6, characterized in that: The coil group base rod (121) and the coil group telescopic rod (122) are both provided with a plurality of coil group hanging devices (123) for fixing the coil (2) along the rod length direction.

8. The easily detachable induction heating device according to claim 7, characterized in that: The coil assembly hanging device (123) on the coil assembly base rod (121) is formed as an integral part with the coil assembly base rod (121); the coil assembly telescopic rod (122) is provided with a plurality of groove limiting structures (1222) along the rod length direction; the coil assembly hanging device (123) is partially accommodated in the groove limiting structures (1222) and is detachably connected to the coil assembly telescopic rod (122).

9. The easily detachable induction heating device according to any one of claims 1 to 8, characterized in that: The movable power source host comprises a generator, a frequency converter and a power controller.

10. The easily detachable induction heating device according to claim 9, characterized in that: It also comprises a base (4), the heating coil support (1) being connected to the base (4), and a heat insulation layer is provided on the connection surface between the base (4) and the heating coil support (1).

Images