High-power medium-high frequency induction heating disassembly and assembly interference fit large shaft sleeve or coupler equipment
Through high-power medium and high-frequency induction heating equipment and water cooling system, the problem of uneven heating of large sleeves or couplings is solved, uniform heating and equipment protection are achieved, and it is suitable for large-scale assembly and disassembly.
Patent Information
- Application Number
- CN202422880239.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-25
AI Technical Summary
In the prior art, when assembling and disassembling large interference fit sleeves or couplings, uneven heating or excessively high local temperatures may occur, resulting in deformation and damage of the sleeves.
High-power medium and high-frequency induction heating equipment is used. The induction heating cable is wound around the shaft sleeve or coupling to form an induction heating coil. Combined with a water cooling system, uniform heating is achieved and equipment damage is avoided.
It achieves uniform heating of large interference fit sleeves or couplings, avoids deformation and damage to the equipment, and is suitable for large assembly and disassembly.
Smart Images
Figure CN223488436U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an induction heating device. Background Technology
[0002] In the field of mechanical equipment, the assembly and disassembly of interference fit bushings or couplings are carried out by flame heating. A blowtorch is used to heat the bushing around its perimeter, causing it to expand so that it can be installed or pulled out. This method is generally only suitable for small interference fit bushings or couplings. When assembling or disassembling large interference fit bushings or couplings, uneven heating or excessively high local temperatures can easily cause the bushing to deform and be damaged. Utility Model Content
[0003] The purpose of this invention is to provide an induction heating device for disassembling and assembling interference fit shaft sleeves or couplings.
[0004] The technical solution of this utility model is: a high-power medium-high frequency induction heating and disassembly interference fit shaft sleeve or coupling device, including an electrical control cabinet, a water pump, and a circulating water tank. A high-power medium-high frequency induction heating circuit is installed in the electrical control cabinet. The load of the high-power medium-high frequency induction heating circuit is connected to an induction heating water-cooling induction coil. The induction heating water-cooling induction coil includes a positive electrode busbar and a negative electrode busbar. A positive copper sleeve is connected to the positive electrode busbar, and a negative copper sleeve is connected to the negative electrode busbar. A water inlet connector is installed on the positive copper sleeve, and a water outlet connector is installed on the negative copper sleeve. The two ends of a cable are respectively inserted into the positive copper sleeve and the negative copper sleeve and connected to the positive electrode busbar and the negative electrode busbar. The two ends of an insulating rubber sleeve are respectively connected to the positive copper sleeve and the negative copper sleeve. An insulating tube is wrapped around the outer wall of the insulating rubber sleeve.
[0005] The high-power, medium-high frequency induction heating circuit includes: a three-phase rectifier bridge, an IGBT inverter drive, an IGBT half-bridge inverter, a mainboard PLC, a touch screen, and a switching power supply; the three-phase power supplies A, B, and C are connected to the A, B, and C terminals of the three-phase rectifier bridge, which is connected to the IGBT half-bridge inverter. A pre-charging resistor R1, a charging relay coil J, a filter circuit, and a RC snubber circuit are connected between the three-phase rectifier bridge and the IGBT half-bridge inverter. The filter circuit consists of a parallel filter capacitor C1 and a discharge resistor R2. The RC snubber circuit includes capacitors C2 and C3 connected in series, and resistors R3 and R4 connected in series. Capacitors C2 and C3 are connected in parallel with the series resistors R3 and R4, and capacitors C2 and C3 are connected to resistors R3 and R4. The IGBT half-bridge inverter is connected to the induction coil L2; charging... The Kc1 and Kc2 terminals of relay coil J are connected to the Kc1 / Kc2 pins of the main board PLC. The filter circuit is connected to the input voltage detection pin of the main board PLC. The IGBT inverter drive is connected to the inverter drive pins of the IGBT half-bridge inverter and the main board PLC respectively. The touch screen is connected to the Rs485 pin of the main board PLC. The switching power supply is connected to the DC24V pin of the main board PLC. An input current sampling coil L1 is connected to the three-phase power supply and is connected to the input current detection pin of the main board PLC. The three-phase power supply A, B, and C are connected to the A, B, and C three-phase detection pins of the main board PLC. An output current sampling coil L3 is connected to the connection terminal between the IGBT half-bridge inverter and the induction coil L2 and is connected to the output current detection pin of the main board PLC. Start, stop, and detection buttons are connected to the signal input pins of the main board PLC.
[0006] The cable is a braided cable made of 100 to 5000 thousand 0.44mm high-strength, high-temperature and high-pressure resistant enameled wires.
[0007] The insulating sleeve is a high-strength, high-temperature resistant PVC insulating sleeve.
[0008] The insulating sleeve described is a high-silica fiber insulating sleeve that can withstand 1700℃.
[0009] This invention offers the following technical advantages: By using induction heating, an induction heating cable is wound around an interference fit bushing or coupling to form an induction heating coil. This coil heats the bushing or coupling, causing it to expand and allowing it to be installed or pulled out. This method is particularly suitable for assembling and disassembling large interference fit bushings or couplings, providing uniform heating. It prevents deformation and damage to the heated components. The induction heating cable is water-cooled to avoid damage due to overheating. The induction coil is made of flexible cable, allowing it to be wound onto the interference fit bushing or coupling at the workstation to form a spiral induction coil, making it especially suitable for the installation and disassembly of large interference fit bushings or couplings. Attached Figure Description
[0010] Figure 1This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 This is a schematic diagram of the structure of the induction heating water-cooled cable of this utility model.
[0012] Figure 3 yes Figure 2 AA section view.
[0013] Figure 4 yes Figure 2 Top view.
[0014] Figure 5 This is a circuit diagram for a high-power, medium-high frequency induction heating system of this utility model. Detailed Implementation
[0015] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a high-power medium-high frequency induction heating and disassembly / assembly device for interference fit shaft sleeves or couplings includes an electrical control cabinet 1, a water pump 3, and a circulating water tank 4. The electrical control cabinet 1 houses a high-power medium-high frequency induction heating circuit 1-1, which is connected to an induction heating water-cooled cable 2. The induction heating water-cooled cable has busbars 2-1 at both ends, and copper sleeves 2-2 are connected to the busbars 2-1. The copper sleeves 2-2 at both ends are respectively equipped with… There are inlet connectors 2-4 and outlet connectors 2-7. The two ends of cable 2-3 are inserted into copper sleeves 2-2 and connected to the electric busbar 2-1. Insulating rubber sleeves 2-5 are connected to the copper sleeves 2-2. An insulating sleeve 2-6 is wrapped around the outer wall of the insulating rubber sleeves 2-5. One end of the water pump 3 inlet pipe is connected to the inlet connector 2-4, and the other end is connected to the outlet 4-2 of the circulating cooling water tank 4. One end of the return water pipe is connected to the outlet connector 2-7, and the other end is connected to the inlet 4-1 of the circulating cooling water tank 4.
[0016] The high-power, medium-high frequency induction heating circuit includes: a three-phase rectifier bridge, an IGBT inverter drive, an IGBT half-bridge inverter, a mainboard PLC, a touch screen, and a switching power supply; the three-phase power supplies A, B, and C are connected to the A, B, and C terminals of the three-phase rectifier bridge, which is connected to the IGBT half-bridge inverter. A pre-charging resistor R1, a charging relay coil J, a filter circuit, and a RC snubber circuit are connected between the three-phase rectifier bridge and the IGBT half-bridge inverter. The filter circuit consists of a parallel filter capacitor C1 and a discharge resistor R2. The RC snubber circuit includes capacitors C2 and C3 connected in series, and resistors R3 and R4 connected in series. Capacitors C2 and C3 are connected in parallel with the series resistors R3 and R4, and capacitors C2 and C3 are connected to resistors R3 and R4. The IGBT half-bridge inverter is connected to the induction coil L2; charging... The Kc1 and Kc2 terminals of relay coil J are connected to the Kc1 / Kc2 pins of the main board PLC. The filter circuit is connected to the input voltage detection pin of the main board PLC. The IGBT inverter drive is connected to the inverter drive pins of the IGBT half-bridge inverter and the main board PLC respectively. The touch screen is connected to the Rs485 pin of the main board PLC. The switching power supply is connected to the DC24V pin of the main board PLC. An input current sampling coil L1 is connected to the three-phase power supply and is connected to the input current detection pin of the main board PLC. The three-phase power supply A, B, and C are connected to the A, B, and C three-phase detection pins of the main board PLC. An output current sampling coil L3 is connected to the connection terminal between the IGBT half-bridge inverter and the induction coil L2 and is connected to the output current detection pin of the main board PLC. Start, stop, and detection buttons are connected to the signal input pins of the main board PLC.
[0017] The induction heating water-cooled cable is a braided cable made of 100 to 5000 thousand 0.44mm high-strength, high-temperature and high-pressure resistant enameled wires.
[0018] The insulating sleeves 2-5 mentioned above are high-strength and high-temperature resistant PVC insulating sleeves.
[0019] The insulating sleeves 2-6 are high-silica fiber insulating sleeves that can withstand 1700℃.
[0020] The working principle of this utility model is as follows: When installing or disassembling the interference fit shaft sleeve or coupling 5, the induction heating water-cooled cable 2 is wound around the interference fit shaft or coupling 5 to form an induction heating coil. The load of the high-power medium-high frequency induction heating circuit 1-1 is connected to the electric busbar 2-1 of the induction heating water-cooled cable 2. The water inlet connector 2-4 and water outlet connector 2-7 of the copper sleeve 2-2 are connected to the water pump 3 and the circulating cooling water tank 4. When started, the induction heating water-cooled cable 2 wound around the interference fit shaft or coupling 5 forms an induction heating coil, which induction heats the shaft sleeve or coupling 5, causing it to expand, so that it can be installed or pulled out.
Claims
1. A high-power medium-high frequency induction heating and disassembly / assembly interference fit shaft sleeve or coupling device, comprising an electrical control cabinet (1), a water pump (3), and a circulating water tank (4), wherein a high-power medium-high frequency induction heating circuit (1-1) is installed in the electrical control cabinet (1), characterized in that: The load of the high-power medium-high frequency induction heating circuit (1-1) is connected to the induction heating water-cooled induction coil (2). The induction heating water-cooled induction coil (2) includes a positive electrode busbar (2-1) and a negative electrode busbar (2-11). A positive copper sleeve (2-2) is connected to the positive electrode busbar (2-1), and a negative copper sleeve (2-21) is connected to the negative electrode busbar (2-11). A water inlet connector (2-4) is installed on the positive copper sleeve (2-2). The negative copper sleeve (2-21) is equipped with a water outlet connector (2-41). The two ends of the cable (2-3) are inserted into the positive copper sleeve (2-2) and the negative copper sleeve (2-21) respectively, and connected to the positive busbar (2-1) and the negative busbar (2-11). The two ends of the insulating rubber sleeve (2-5) are connected to the positive copper sleeve (2-2) and the negative copper sleeve (2-21) respectively. An insulating tube sleeve (2-6) is wrapped around the outer wall of the insulating rubber sleeve (2-5).
2. The high-power medium-high frequency induction heating and disassembly / assembly interference fit shaft sleeve or coupling equipment according to claim 1, characterized in that: The high-power, medium-high frequency induction heating circuit includes: a three-phase rectifier bridge, an IGBT inverter drive, an IGBT half-bridge inverter, a mainboard PLC, a touch screen, and a switching power supply; the three-phase power supplies A, B, and C are connected to the A, B, and C terminals of the three-phase rectifier bridge, which is connected to the IGBT half-bridge inverter. A pre-charging resistor R1, a charging relay coil J, a filter circuit, and a RC snubber circuit are connected between the three-phase rectifier bridge and the IGBT half-bridge inverter. The filter circuit consists of a parallel filter capacitor C1 and a discharge resistor R2. The RC snubber circuit includes capacitors C2 and C3 connected in series, and resistors R3 and R4 connected in series. Capacitors C2 and C3 are connected in parallel with the series resistors R3 and R4, and capacitors C2 and C3 are connected to resistors R3 and R4. The IGBT half-bridge inverter is connected to the induction coil L2; charging... The Kc1 and Kc2 terminals of relay coil J are connected to the Kc1 / Kc2 pins of the main board PLC. The filter circuit is connected to the input voltage detection pin of the main board PLC. The IGBT inverter drive is connected to the inverter drive pins of the IGBT half-bridge inverter and the main board PLC respectively. The touch screen is connected to the Rs485 pin of the main board PLC. The switching power supply is connected to the DC24V pin of the main board PLC. An input current sampling coil L1 is connected to the three-phase power supply and is connected to the input current detection pin of the main board PLC. The three-phase power supply A, B, and C are connected to the A, B, and C three-phase detection pins of the main board PLC. An output current sampling coil L3 is connected to the connection terminal between the IGBT half-bridge inverter and the induction coil L2 and is connected to the output current detection pin of the main board PLC. Start, stop, and detection buttons are connected to the signal input pins of the main board PLC.
3. The high-power medium-high frequency induction heating and disassembly / assembly interference fit shaft sleeve or coupling equipment according to claim 1, characterized in that: The cable (2-3) is a braided cable made of 100 to 5000 thousand 0.44mm high-strength, high-temperature and high-pressure resistant enameled wires.
4. The high-power medium-high frequency induction heating and disassembly / assembly interference fit shaft sleeve or coupling equipment according to claim 1, characterized in that: The insulating sleeve (2-5) mentioned above is a high-strength and high-temperature resistant PVC insulating sleeve.
5. The high-power medium-high frequency induction heating and disassembly / assembly interference fit shaft sleeve or coupling equipment according to claim 1, characterized in that: The aforementioned insulating sleeve (2-6) is a high-silica fiber insulating sleeve resistant to 1700℃.