Integrated bearing heating and mounting device

Abstract

This invention relates to the field of bearing assembly technology, and more particularly to an integrated bearing heating and installation device. The device includes an induction heating plate with a ring-shaped induction coil inside. A guide sleeve is connected to the bottom of the induction heating plate via a replaceable mechanism. The guide sleeve is connected to a clamping plate via a radial adjustment mechanism. A display screen is located on the top of the induction heating plate. A buzzer and timer are also installed inside the induction heating plate. A suction cup electromagnet is located at the bottom of the induction heating plate. An iron adsorption ring is embedded in the upper end face of the guide sleeve. This invention can rapidly induction heat the bearing and directly push the heated bearing to the installation position using the guide sleeve, shortening assembly time, enhancing versatility, ensuring the coaxiality of the bearing, guide sleeve, and installation shaft, ensuring the safety of operators and equipment, providing real-time temperature monitoring and display, timed reminders and buzzer alarms, and enhancing connection stability.

Description

Technical Field

[0001] This invention relates to the field of bearing assembly technology, specifically to an integrated bearing heating and installation device. Background Technology

[0002] As a key component supporting rotating machinery, the installation quality of bearings directly affects the operating accuracy, lifespan, and reliability of the equipment. In the manufacturing and maintenance of various electromechanical equipment (such as motors, machine tools, pumps, etc.), the hot fitting method (or red fitting method) is a widely used interference fit installation process. Its basic principle is to use the thermal expansion and contraction effect to heat the bearing to expand its inner diameter, and then easily fit it onto the journal. After cooling, a firm connection is achieved.

[0003] Currently, the bearing hot-fitting process mainly faces the following technical problems, and the existing solutions for each stage are disconnected: 1. Heating process: Traditional methods are ineffective, with issues of uniformity and efficiency. Existing technologies typically employ methods such as oil bath heating, resistance furnace heating, or flame heating. Oil bath heating suffers from drawbacks such as oil contamination, slow heating speed, and difficulty in precise temperature control; resistance furnace heating often results in localized overheating or uneven heating of the bearing due to heat conduction from the outside in, potentially altering the metallographic structure of the bearing material and reducing its hardness and service life. Furthermore, these heating devices are bulky and difficult to move to the site for operation.

[0004] 2. Handling process: Significant safety hazards and inconvenient operation. The surface temperature of the heated bearing can reach 100℃ to over 300℃. In practice, operators often use ordinary tools (such as iron hooks and asbestos gloves) or even their bare hands to handle the bearing. This not only poses a very high risk of burns, but also makes the bearing prone to shaking and tilting during handling, affecting the stability of subsequent installation. Although some solutions use independent heat-insulated clamping tools, this increases the tool changing steps and reduces the smoothness of the operation.

[0005] 3. Installation process: Difficult to align, easily damaging bearings and journals. Traditional installation methods heavily rely on manual visual inspection and experience for alignment. While the bearing is still in a state of high-temperature expansion, it must be quickly fitted onto the journal. Due to the lack of a precise guiding mechanism, the bearing is highly prone to misalignment, leading to hard contact or jamming with the journal. As a result, operators are often forced to use impact methods such as hammering or striking to force installation. This practice easily damages the bearing raceway, rolling elements, or cage, and may also scratch the journal surface, severely affecting assembly accuracy and the yield rate of finished products.

[0006] 4. Functional separation: Fragmented processes limit efficiency. In existing technologies, heating, handling, and alignment are performed by separate equipment or tools, resulting in a fragmented workflow. Operators must switch between different workstations or tools, which not only increases auxiliary time but also introduces uncertainties due to multiple manual interventions, making it difficult to meet the demands of modern industrial production for efficient, precise, and integrated assembly.

[0007] No solutions have yet been proposed for the relevant technical issues. Summary of the Invention

[0008] To address the problems in related technologies, this invention proposes an integrated bearing heating and installation device to overcome the aforementioned technical issues in existing technologies. The purpose of this invention is to enable rapid induction heating of the bearing and direct pushing of the heated bearing to the installation position using a guide sleeve, significantly shortening assembly time, enhancing the device's versatility, effectively ensuring the coaxiality of the bearing, guide sleeve, and installation shaft, preventing misalignment or jamming during installation, avoiding bearing slippage due to the surface lubrication layer after heating, ensuring the safety of operators and equipment, providing real-time temperature monitoring and display to prevent overheating damage, and offering timed reminders and buzzer alarms to enhance connection stability.

[0009] To achieve the above objectives, the present invention provides the following technical solution: an integrated bearing heating and installation device, comprising an induction heating plate, wherein an annular induction coil is provided inside the induction heating plate, and heat-insulating handles are provided on both sides of the induction heating plate. A guide sleeve is connected to the bottom of the induction heating plate through a replaceable mechanism, and a clamping plate is connected to the guide sleeve through a radial adjustment mechanism. The radial adjustment mechanism includes a hydraulic cylinder, a movable plate, and a connecting column. The guide sleeve has a cavity inside, with a rectangular opening on one side of the cavity and a clamping cavity on the side of the rectangular opening away from the cavity. The rectangular opening communicates with both the cavity and the clamping cavity. The hydraulic cylinder is fixedly installed inside the cavity, and its output end is fixedly connected to the movable plate. The movable plate is movably connected to the inner wall of the cavity. There are two clamping plates, symmetrically distributed. One end of the connecting column is fixedly connected to the clamping plate. The movable plate has two limiting openings. The other end of the connecting column passes through the rectangular opening and the limiting opening in sequence and extends into the cavity, with an anti-slip block fixedly connected to its end.

[0010] Preferably, the replaceable mechanism includes a push plate, a locking plate, a spring, and a movable column. The guide sleeve has a storage groove on the side near the induction heating plate, and the induction heating plate has a locking groove on the side near the guide sleeve. The push plate is disposed inside the locking groove. One end of the movable column is fixedly connected to the push plate, and the other end of the movable column passes through the induction heating plate and extends to the outside of the induction heating plate. The locking plate and the spring are both disposed inside the storage groove. Both ends of the spring are fixedly connected to the inner walls of the locking plate and the storage groove, respectively. One end of the locking plate extends to the outside of the storage groove.

[0011] Preferably, a temperature sensor is provided at the top center of the induction heating plate, a microcontroller is provided inside the induction heating plate, and a display screen is provided on the top of the induction heating plate. The temperature sensor is electrically connected to the microcontroller, and the microcontroller is electrically connected to the display screen.

[0012] Preferably, the induction heating plate is further provided with a buzzer and a timer. The timer is electrically connected to the input terminal of the microcontroller, and the buzzer is electrically connected to the output terminal of the microcontroller.

[0013] Preferably, a suction cup electromagnet is provided at the bottom of the induction heating plate, and an iron adsorption ring is embedded in the upper end face of the guide sleeve. The suction cup electromagnet and the iron adsorption ring are magnetically attracted to each other.

[0014] Preferably, one side of both the push plate and the clamping plate is inclined, with an inclination angle of 30° to 80°, and the push plate is arranged in a parallelogram structure.

[0015] Preferably, anti-slip pads are provided on the opposite sides of both clamping plates.

[0016] Preferably, the two limiting openings are arranged in a figure-eight shape.

[0017] Compared with the prior art, the beneficial effects of the present invention are: (1) The present invention is an integrated bearing heating and installation device. By integrating the induction heating plate and the guide sleeve, it can quickly heat the bearing and directly push the heated bearing to the installation position using the guide sleeve. This avoids the cumbersome operation of separating heating and installation and requiring multiple bearing transfers in the traditional process, and significantly shortens the assembly time. (2) The present invention is an integrated bearing heating and installation device. By setting a replaceable mechanism, it allows for quick replacement of guide sleeves of corresponding sizes according to the outer diameter of different bearings, which enhances the versatility of the device and can meet the installation requirements of various bearing models without the need to prepare multiple devices. (3) The present invention is an integrated bearing heating and installation device. By setting a radial adjustment mechanism, a hydraulic cylinder drives the movable plate, and with the help of the figure-eight limiting opening and connecting column, the two clamping plates move synchronously towards the center, so as to realize the automatic centering and clamping of the outer ring of the bearing. It can effectively ensure the coaxiality of the bearing, the guide sleeve and the installation shaft, and prevent the misalignment or jamming during the installation process. (4) The present invention is an integrated bearing heating and installation device. By providing inclined surfaces for both the push plate and the clamping plate, and cooperating with springs to achieve press-type self-locking and unlocking, during installation, simply push the guide sleeve into the bottom of the induction heating plate and the clamping plate will automatically lock into the slot; during disassembly, pressing the movable column will cause the push plate to open the clamping plate, achieving quick separation. The operation is convenient and requires no tools. (5) This invention is an integrated bearing heating and installation device. It uses a temperature sensor to detect the bearing heating temperature in real time and displays it on a screen. The microcontroller can make judgments based on the set threshold to avoid the bearing material performance deterioration or lubricant failure due to excessive temperature, ensuring that the heating process is controllable and reliable. By setting a timer and a buzzer, the heating time can be preset. When the set time is reached, the buzzer will automatically remind the operator to prevent the heating time from being too long or too short. This helps to standardize the heating process parameters and is especially suitable for batch operation scenarios. (6) The present invention is an integrated bearing heating and installation device. By setting a suction cup electromagnet at the bottom of the induction heating plate, which magnetically engages with the iron adsorption ring at the upper end of the guide sleeve, an additional axial holding force can be provided after the guide sleeve is installed, preventing the guide sleeve from loosening due to vibration or accidental contact during use, and further improving the overall rigidity of the device. By setting heat-insulating handles on both sides of the induction heating plate, the heat transferred by the plate during the heating process is effectively blocked, allowing the operator to safely hold and move the device, avoiding the risk of burns. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 An enlarged structural diagram of part A; Figure 3 This is a schematic diagram of the structure of the ring induction coil of the present invention. Attached image description: 1. Induction heating plate; 2. Ring induction coil; 3. Heat-insulated handle; 4. Guide sleeve; 5. Clamping plate; 6. Hydraulic cylinder; 7. Movable plate; 8. Connecting column; 9. Cavity; 10. Push plate; 11. Clamping plate; 12. Spring; 13. Movable column; 14. Storage slot; 15. Slot; 16. Temperature sensor; 17. Microcontroller; 18. Display screen; 19. Buzzer; 20. Timer; 21. Suction cup electromagnet; 22. Iron adsorption ring; 23. Anti-slip pad; 24. Clamping cavity. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] Example Please see Figure 1-3 As shown, this invention proposes a technical solution for an integrated bearing heating and installation device: an integrated bearing heating and installation device includes an induction heating plate 1, an annular induction coil 2 disposed inside the induction heating plate 1, heat-insulated handles 3 disposed on both sides of the induction heating plate 1, and a guide sleeve 4 connected to the bottom of the induction heating plate 1 through a replaceable mechanism. The guide sleeve 4 is connected to a clamping plate 5 through a radial adjustment mechanism. Specifically, the induction heating plate 1 is a disc-shaped component used to generate an alternating magnetic field, causing eddy currents inside the bearing to generate heat; the annular induction coil 2 is a coil that generates an alternating magnetic field after being energized and is the core heating element; the heat-insulated handles 3 can prevent heat from being conducted to the hand during operation, making it easy to hold safely; the replaceable mechanism is used for quick disassembly or installation of guide sleeves 4 of different sizes; the radial adjustment mechanism is used to change the radial position of the clamping plate 5 to adapt to different journals; The radial adjustment mechanism includes a hydraulic cylinder 6, a movable plate 7, and a connecting column 8. A cavity 9 is provided inside the guide sleeve 4. A rectangular opening is provided on one side of the cavity 9, and a clamping cavity 24 is provided on the side of the rectangular opening away from the cavity 9. The rectangular openings are connected to the cavity 9 and the clamping cavity 24 respectively. The hydraulic cylinder 6 is fixedly installed inside the cavity 9. The output end of the hydraulic cylinder 6 is fixedly connected to the movable plate 7. The movable plate 7 is movably connected to the inner wall of the cavity 9. There are two clamping plates 5, which are symmetrically distributed. One end of the connecting column 8 is fixedly connected to the clamping plate 5. Two limiting openings are opened on the movable plate 7. The other end of the connecting column 8 passes through the rectangular opening and the limiting opening in sequence and extends into the cavity 9. The end is fixedly connected to an anti-slip block. Specifically, the hydraulic cylinder 6 is the actuator that provides linear thrust. The movable plate 7 moves horizontally under the push of the hydraulic cylinder 6, which pushes the connecting column 8 to move. The connecting column 8 is the transmission rod that connects the movable plate 7 and the clamping plate 5. The limiting opening restricts the movement trajectory of the connecting column 8. The anti-slip block is used to prevent the connecting column 8 from coming out of the limiting opening. When the hydraulic cylinder 6 is started, the movable plate 7 connected to it moves. When the movable plate 7 moves, it drives the two connecting columns 8 to move synchronously, so that the two clamping plates 5 can move closer or further apart, thereby meeting the needs of different journals and expanding the applicable range.

[0022] Please see Figure 1As shown, the replaceable mechanism further includes a push plate 10, a clamping plate 11, a spring 12, and a movable column 13. A storage groove 14 is provided on the side of the guide sleeve 4 near the induction heating plate 1, and a clamping groove 15 is provided on the side of the induction heating plate 1 near the guide sleeve 4. The push plate 10 is disposed inside the clamping groove 15. One end of the movable column 13 is fixedly connected to the push plate 10, and the other end of the movable column 13 passes through the induction heating plate 1 and extends to the outside of the induction heating plate 1. The clamping plate 11 and the spring 12 are both disposed inside the storage groove 14. The two ends of the spring 12 are fixedly connected to the inner walls of the clamping plate 11 and the storage groove 14, respectively, and one end of the clamping plate 11 extends to the outside of the storage groove 14.

[0023] In this embodiment, at least two sets of replaceable mechanisms are provided. The locking plate 11 is locked into the slot 15 under the action of the spring 12. The spring 12 provides a reset force for the locking plate 11. The movable column 13 pushes the push plate 10 to move under the action of external force. When it is necessary to install the guide sleeve 4, the locking plate 11 on the guide sleeve 4 is directly inserted into the slot 15 of the induction heating plate 1. Under the action of the spring 12, the locking plate 11 first retracts inward. When the locking plate 11 is inserted into the slot 15, the spring 12 releases the force, so that the locking plate 11 is locked in the slot 1, realizing the connection between the induction heating plate 1 and the guide sleeve 4. When disassembling, the movable column 13 is manually pushed, which drives the push plate 10 fixedly connected to it to push the locking plate 11 to move. When the locking plate 11 moves to a certain position, the guide sleeve 4 can be pulled out directly.

[0024] Please see Figure 1 As shown, a temperature sensor 16 is further provided at the top center of the induction heating plate 1, a microcontroller 17 is provided inside the induction heating plate 1, and a display screen 18 is also provided on the top of the induction heating plate 1. The temperature sensor 16 is electrically connected to the microcontroller 17, and the microcontroller 17 is electrically connected to the display screen 18.

[0025] In this embodiment, the temperature sensor 16 detects the bearing heating temperature in real time, the microcontroller 17 is a logic control chip that receives the temperature signal and controls the display and alarm, and the display screen 18 is an electronic screen that displays parameters such as the current temperature and the set time.

[0026] Please see Figure 1 As shown, the induction heating plate 1 is further equipped with a buzzer 19 and a timer 20. The timer 20 is electrically connected to the input terminal of the microcontroller 17, and the buzzer 19 is electrically connected to the output terminal of the microcontroller 17.

[0027] In this embodiment, the buzzer 19 emits an audible alarm when the temperature or time reaches the set value, and the timer 20 sets the heating duration and outputs a timing signal.

[0028] Please see Figure 1As shown, furthermore, a suction cup electromagnet 21 is provided at the bottom of the induction heating plate 1, and an iron adsorption ring 22 is embedded in the upper end face of the guide sleeve 4. The suction cup electromagnet 21 and the iron adsorption ring 22 are magnetically attracted to each other.

[0029] In this embodiment, the suction cup electromagnet 21 generates magnetic attraction after being energized, and the iron adsorption ring 22 can be attracted by the suction cup electromagnet 21, thereby enhancing the connection stability between the guide sleeve 4 and the induction heating plate 1 through magnetic force.

[0030] Please see Figure 1-2 As shown, both the push plate 10 and the clamping plate 11 are inclined on one side, with an inclination angle of 30° to 80°, and the push plate 10 is arranged in a parallelogram structure.

[0031] In this embodiment, when the parallelogram-shaped push plate 10 moves, its inclined surface can smoothly push the clamping plate 11 to compress the spring 12, reducing jamming.

[0032] Please see Figure 1 As shown, furthermore, anti-slip pads 23 are provided on the opposite sides of the two clamping plates 5.

[0033] In this embodiment, the friction between the journal and the contact surface is increased to prevent slippage.

[0034] Furthermore, the two limiting openings are arranged in a figure-eight shape.

[0035] In this embodiment, when the movable plate 7 is pushed forward, the connecting column 8 expands outward along the figure-eight opening, thereby driving the clamping plate 5 to move radially outward; when pulled in the opposite direction, it retracts inward, achieving clamping or loosening.

[0036] Working principle of the invention: The operator holds the induction heating plate 1 with the heat-insulating handle 3 and places it above the bearing to be heated. After the device is started, the ring induction coil 2 is energized, generating a high-frequency alternating magnetic field, which causes eddy currents inside the bearing and heats it up rapidly. The temperature sensor 16 collects the bearing temperature in real time and transmits the signal to the microcontroller 17. The current temperature is displayed on the display screen 18. The operator can set the heating time through the timer 20. When the temperature or time reaches the set value, the microcontroller 17 controls the buzzer 19 to sound an alarm to indicate that the heating is complete.

[0037] Depending on the size of the bearing to be installed or the journal diameter, a matching guide sleeve 4 can be selected. During installation, the retaining plate 11 at the upper end of the guide sleeve 4 is inserted into the retaining groove 15 at the bottom of the induction heating plate 1. The spring 12 is compressed first, and after the retaining plate 11 is fully inserted into the retaining groove 15, it springs back, achieving automatic locking. During disassembly, the movable column 13 is manually pushed, which drives the push plate 10 to push the retaining plate 11 to compress the spring 12, so that the retaining plate 11 is removed from the retaining groove 15, and the guide sleeve 4 can be removed. At the same time, after the suction cup electromagnet 21 is energized, it magnetically engages with the iron adsorption ring 22, further enhancing the connection stability.

[0038] After the heated bearing is fitted into the guide sleeve 4, the hydraulic cylinder 6 is activated. Its output end pushes the movable plate 7 to move horizontally within the cavity 9. The movable plate 7 has a limit opening with a figure-eight structure. One end of the connecting column 8 is fixed to the clamping plate 5, and the other end passes through the limit opening and is equipped with an anti-slip block. When the movable plate 7 moves forward, the connecting column 8 slides outward along the figure-eight opening, causing the two clamping plates 5 to move closer to each other, thereby clamping journals of different diameters. The anti-slip pad 23 provided on the inner side of the clamping plate 5 can prevent slippage. The hydraulic cylinder 6 can be operated in reverse to release the bearing.

[0039] After the bearing is heated and expanded and clamped to the journal, the operator applies downward force through the heat-insulating handle 3 to make the bearing slide smoothly into the installation position along the guide sleeve 4, thus completing the heat installation.

[0040] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," 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 this invention.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated bearing heating and installation device, characterized in that, It includes an induction heating plate (1), an annular induction coil (2) is provided inside the induction heating plate (1), heat-insulating handles (3) are provided on both sides of the induction heating plate (1), and a guide sleeve (4) is connected to the bottom of the induction heating plate (1) through a replaceable mechanism. The guide sleeve (4) is connected to a clamping plate (5) through a radial adjustment mechanism. The radial adjustment mechanism includes a hydraulic cylinder (6), a movable plate (7), and a connecting column (8). The guide sleeve (4) has a cavity (9) inside. A rectangular opening is provided on one side of the cavity (9). A clamping cavity (24) is provided on the side of the rectangular opening away from the cavity (9). The rectangular opening is connected to the cavity (9) and the clamping cavity (24) respectively. The hydraulic cylinder (6) is fixedly installed inside the cavity (9). The output end of the hydraulic cylinder (6) is fixedly connected to the movable plate (7). The movable plate (7) is movably connected to the inner wall of the cavity (9). There are two clamping plates (5) and they are symmetrically distributed. One end of the connecting column (8) is fixedly connected to the clamping plate (5). Two limiting openings are provided on the movable plate (7). The other end of the connecting column (8) passes through the rectangular opening and the limiting opening in sequence and extends into the cavity (9). An anti-slip block is fixedly connected to the end.

2. The integrated bearing heating and installation device according to claim 1, characterized in that: The replaceable mechanism includes a push plate (10), a clamping plate (11), a spring (12), and a movable column (13). The guide sleeve (4) has a storage groove (14) on the side near the induction heating plate (1). The induction heating plate (1) has a clamping groove (15) on the side near the guide sleeve (4). The push plate (10) is located inside the clamping groove (15). One end of the movable column (13) is fixedly connected to the push plate (10). The other end of the movable column (13) passes through the induction heating plate (1) and extends to the outside of the induction heating plate (1). The clamping plate (11) and the spring (12) are both located inside the storage groove (14). The two ends of the spring (12) are fixedly connected to the inner walls of the clamping plate (11) and the storage groove (14), respectively. One end of the clamping plate (11) extends to the outside of the storage groove (14).

3. The integrated bearing heating and installation device according to claim 1, characterized in that: A temperature sensor (16) is provided at the top center of the induction heating plate (1), a microcontroller (17) is provided inside the induction heating plate (1), and a display screen (18) is also provided on the top of the induction heating plate (1). The temperature sensor (16) is electrically connected to the microcontroller (17), and the microcontroller (17) is electrically connected to the display screen (18).

4. The integrated bearing heating and installation device according to claim 1, characterized in that: The induction heating plate (1) is also equipped with a buzzer (19) and a timer (20). The timer (20) is electrically connected to the input terminal of the microcontroller (17), and the buzzer (19) is electrically connected to the output terminal of the microcontroller (17).

5. The integrated bearing heating and installation device according to claim 1, characterized in that: The bottom of the induction heating plate (1) is also provided with a suction cup electromagnet (21), and the upper end face of the guide sleeve (4) is fitted with an iron adsorption ring (22). The suction cup electromagnet (21) and the iron adsorption ring (22) are magnetically attracted to each other.

6. The integrated bearing heating and installation device according to claim 2, characterized in that: The push plate (10) and the card plate (11) are both inclined on one side, with an inclination angle of 30°~80°. The push plate (10) is arranged in a parallelogram structure.

7. The integrated bearing heating and installation device according to claim 1, characterized in that: Anti-slip pads (23) are provided on the opposite side of both clamping plates (5).

8. The integrated bearing heating and installation device according to claim 1, characterized in that: The two limiting openings are arranged in a figure-eight shape.

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