Pressing and dismounting device for fan dummy shaft

Abstract

The utility model relates to mechanical engineering technical field, concretely relates to a fan false axle's press -pack and dismounting device, including base, bearing platform, false axle press -pack frock, false axle dismounting frock, impeller turnover mechanism and dismounting mechanism, the dismounting mechanism includes portal frame and pressure exertion drive part, this portal frame is fixed on the base, this pressure exertion drive part is installed on the portal frame, this impeller turnover mechanism includes turnover frame and turnover drive part, this turnover frame rotatably installs on the base, this turnover drive part is installed on the base and is driven connection in this turnover frame, this bearing platform is slidably installed on the base, and this bearing platform is used for bearing impeller, the utility model guarantees the force magnitude consistency when false axle press -pack or dismounting, has improved the quality stability of impeller, has solved the technical problem that the existing technology manual fan impeller false axle press -pack or dismounting easily influences the quality hidden danger of impeller.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, specifically to a device for pressing and disassembling a dummy shaft for a fan. Background Technology

[0002] Railway locomotive ventilation and cooling fans accelerate heat dissipation for railway locomotives, and the impeller is a key component of the ventilation and cooling fan. When performing dynamic balancing tests on the impeller, a dummy shaft needs to be installed, and after the dynamic balancing test, the dummy shaft must be removed. The impeller dynamic balancing test is also a crucial process in fan manufacturing.

[0003] Currently, the pressing or removal of dummy shafts for wind turbine impellers is done manually by operators using copper rods to strike the dummy shaft into the impeller, or by directly using gravity impact to install or remove the dummy shaft from the impeller. This method cannot effectively ensure that the dummy shaft is pressed into the correct position, and it is important to reduce the risk of impeller quality problems caused by incorrect removal methods. Utility Model Content

[0004] The purpose of this utility model is to provide a device for pressing and disassembling a dummy shaft for a fan, so as to solve the technical problem that manual pressing or disassembly of the dummy shaft of the fan impeller can easily affect the quality of the impeller. The specific technical solution is as follows: This utility model provides a device for pressing and disassembling a dummy shaft for a wind turbine, including a base, a support platform, a dummy shaft pressing fixture, a dummy shaft disassembly fixture, an impeller tilting mechanism, and a disassembly and assembly mechanism. The dummy shaft pressing fixture assists in pressing the dummy shaft into the impeller, and the dummy shaft disassembly fixture assists in disassembling the dummy shaft from the impeller. The disassembly and assembly mechanism includes a gantry frame and a pressure application drive component. The gantry frame is fixed to the base, and the pressure application drive component is mounted on the gantry frame. The impeller tilting mechanism includes a tilting frame and a tilting drive component. The tilting frame is rotatably mounted on the base, and the tilting drive component is mounted on the base and drivenly connected to the tilting frame. The support platform is slidably mounted on the base and is used to support the impeller.

[0005] A further improvement of the press-fitting and disassembly device for the dummy shaft of the wind turbine of this utility model is that the flipping mechanism further includes a lifting frame and a lifting drive component. The lifting frame is slidably mounted on the flipping frame, and the lifting drive component is mounted on the flipping frame and driven to be connected to the lifting frame. The lifting frame is provided with a U-shaped component for engaging the impeller.

[0006] A further improvement of the press-fitting and disassembly device for the dummy shaft of the fan of this utility model is that the base is provided with a slide rail, the support is slidably installed on the slide rail, and the slide rail is connected between the tilting frame and the gantry frame.

[0007] A further improvement of the press-fitting and disassembling device for the dummy shaft of the fan of this utility model is that a spoke-type tension and pressure sensor is installed at the output end of the pressure application drive component.

[0008] A further improvement of the press-fitting and disassembly device for the dummy shaft of the fan of this utility model is that a linear drive component is installed on the base, and the linear drive component is driven and connected to the support platform.

[0009] A further improvement of the press-fitting and disassembling device for the dummy shaft of the fan of this utility model is that the linear drive component is a cylinder, and a pneumatic control system is installed on the base and connected to the cylinder.

[0010] A further improvement of the press-fitting and disassembly device for the dummy shaft of the wind turbine of this utility model is that a cantilever crane is installed on the base.

[0011] A further improvement of the press-fitting and disassembly device for the dummy shaft of the wind turbine of this utility model is that an electrical control system is installed on the base, and the electrical control system is connected to the pressure application drive, the tilting drive, the lifting drive, the spoke-type tension and pressure sensor, the pneumatic control system and the cantilever crane.

[0012] The application of the technical solution of this utility model has the following beneficial effects: This utility model relates to a device for pressing and disassembling a dummy shaft for wind turbines. Through the coordination of a base, support platform, dummy shaft pressing fixture, dummy shaft disassembly fixture, impeller tilting mechanism, and disassembly / assembly mechanism, it achieves mechanized pressing and disassembly of the dummy shaft and impeller. This ensures controllability of various values ​​during the pressing and disassembly process, guarantees consistency of force during pressing or disassembly, improves the quality stability of the impeller, and solves the technical problem in existing technologies where manual pressing or disassembly of the dummy shaft can easily affect impeller quality. When performing dynamic balancing operations on large-mass impellers, this utility model can reduce the operator's workload, save time during dummy shaft pressing or disassembly, and improve efficiency.

[0013] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the press-fitting and disassembling device for the dummy shaft of the fan of this utility model; Figure 2 This is a schematic diagram of the press-fitting and disassembly device for the dummy shaft of the fan of this utility model during the press-fitting of the dummy shaft; Figure 3 This is a schematic diagram of the press-fitting and disassembly device for the dummy shaft of the fan of this utility model when the impeller is tilted; Figure 4 This is a schematic diagram of the press-fitting and disassembly device for the dummy shaft of the fan of this utility model when the impeller is pushed out; Figure 5 This is a schematic diagram of the impeller flipping mechanism and impeller placement of the press-fitting and disassembly device for the dummy shaft of the fan of this utility model; Figure 6 This is a schematic diagram of the structure of the dummy shaft press-fit tooling of the dummy shaft press-fit and disassembly device for the fan of this utility model; Figure 7 This is a schematic diagram of the structure of the dummy shaft disassembly fixture of the press-fitting and disassembling device for the dummy shaft of the fan of this utility model.

[0015] The components include: 1. Base; 101. Slide rail; 2. Support platform; 201. Clamping cylinder; 3. Impeller tilting mechanism; 301. Tilting frame; 302. Tilting drive component; 303. Lifting frame; 304. Lifting drive component; 305. U-shaped component; 306. Large gear; 307. Guide rail; 4. Assembly / disassembly mechanism; 401. Gantry frame; 402. Pressure application drive component; 403. Guide plate; 404. Spoke-type tension / compression sensor; 5. Dummy shaft press-fit fixture; 501. First upper fixture; 502. First lower fixture; 6. Dummy shaft disassembly fixture; 601. Second upper fixture; 602. Second lower fixture; 7. Pneumatic control system; 8. Electrical control system; 9. Cantilever crane; 10. Impeller. Detailed Implementation

[0016] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] See Figures 1-7 As shown, a device for pressing and disassembling a dummy shaft for a wind turbine includes a base 1, a support 2, a dummy shaft pressing fixture 5, a dummy shaft disassembly fixture 6, an impeller tilting mechanism 3, and a disassembly / assembly mechanism 4. The dummy shaft pressing fixture 5 assists in pressing the dummy shaft into the impeller 10, and the dummy shaft disassembly fixture 6 assists in disassembling the dummy shaft from the impeller 10. The disassembly / assembly mechanism 4 includes a gantry frame 401 and a pressure application drive 402. The gantry frame 401 is fixed to the base 1, and the pressure application drive 402 is mounted on the gantry frame 401. The impeller tilting mechanism 3 includes a tilting frame 301 and a tilting drive 302. The tilting frame 301 is rotatably mounted on the base 1, and the tilting drive 302 is mounted on the base 1 and drivenly connected to the tilting frame 301. The support 2 is slidably mounted on the base 1 and is used to support the impeller 10.

[0018] In this embodiment, as Figure 6 and Figure 7As shown, the dummy shaft press-fit fixture 5 includes a first upper fixture 501 and a first lower fixture 502. The first upper fixture 501 is used to install on the output end of the pressure application drive 402, and the first lower fixture 502 is used to install on the support 2. The dummy shaft disassembly fixture 6 includes a second upper fixture 601 and a second lower fixture 602. The second upper fixture 601 is used to install on the output end of the pressure application drive 402, and the second lower fixture 602 is used to install on the support 2. The dummy shaft press-fit fixture 5 and the dummy shaft disassembly fixture 6 are used to support the upper and lower ends of the fan impeller 10. Figure 2 As shown, the pressure application drive 402 is an electric cylinder, which is mounted on the top of the gantry frame 401. The output end of the electric cylinder extends through the top plate of the gantry frame 401 into the interior of the gantry frame 401. At least two vertical rails are provided on the inner wall of the gantry frame 401, and guide plates 403 are slidably mounted on these rails. A first upper tooling 501 or a second upper tooling 601 is mounted on the guide plate 403. The output end of the electric cylinder is connected to the guide plate 403, thereby preventing displacement during the pressing process. The tilting drive 302 is a motor, with a small gear on its output shaft. A large gear 306 is provided on the side of the tilting frame 301 near the gantry frame 401. The large gear 306 meshes with the small gear, thereby driving the tilting frame 301 to tilt through the motor.

[0019] Preferred, such as Figures 2-5 As shown, the flipping mechanism also includes a lifting frame 303 and a lifting drive component 304. The lifting frame 303 is slidably mounted on the flipping frame 301, and the lifting drive component 304 is mounted on the flipping frame 301 and driven to the lifting frame 303. The lifting frame 303 is provided with a U-shaped component 305 for engaging the impeller 10. Specifically, the flipping frame 301 is equipped with guide rails 307 for the lifting frame 303 to slide. Preferably, there are at least two guide rails 307. When the flipping frame 301 is in a horizontal state, the lifting frame 303 slides horizontally relative to the base 1. When the flipping frame 301 is flipped to an upright state, the lifting frame 303 slides vertically relative to the base 1. By moving the position of the lifting frame 303, the position of the impeller 10 on the flipping frame 301 can be better adjusted, making it easier to remove the impeller 10 and the dummy shaft from the matching disassembly and assembly fixture.

[0020] Preferably, the base 1 is provided with a slide rail 101, and the support platform 2 is slidably mounted on the slide rail 101. The slide rail 101 connects the tilting frame 301 to the gantry frame 401. Specifically, the slide rail 101 extends into the interior of the gantry frame 401, thereby facilitating the sliding of the support platform 2 into the gantry frame 401 for pressing the dummy shaft. The support platform 2 is provided with a pair of clamping cylinders 201 for clamping or releasing the first lower tool 502 of the dummy shaft pressing tool 5 or the second lower tool 602 of the dummy shaft disassembly tool 6.

[0021] Preferably, a spoke-type tension / compression sensor 404 is installed at the output end of the pressure application drive 402 to sense the magnitude of the force applied by the pressure application drive 402 during dummy shaft press-fitting or disassembly, so as to accurately control the degree of press-fitting. The spoke-type tension / compression sensor 404 can be set with different upper limit values ​​according to the process documents to meet the pressure monitoring requirements during dummy shaft press-fitting or disassembly when performing dynamic balancing tests on different models and types of impellers 10. The spoke-type tension / compression sensor 404 records the force values ​​during dummy shaft press-fitting or disassembly operations, allowing for the tracing of product quality issues based on these records. The spoke-type tension / compression sensor 404 can be set with different pressure alarm values ​​for different impeller 10 dynamic balancing dummy shafts according to the process document requirements, activating the alarm device to automatically stop the fan dummy shaft press-fitting or disassembly operations.

[0022] Preferably, a linear drive is mounted on the base 1, and the linear drive is driven to the support platform 2. The linear drive can drive the support platform 2 to slide precisely on the slide rail 101, thereby changing the position of the impeller 10.

[0023] Preferably, the linear drive component is a cylinder, and a pneumatic control system 7 is installed on the base 1. The pneumatic control system 7 is connected to the cylinder, thereby precisely controlling the position of the support platform 2 sliding on the slide rail 101.

[0024] Preferably, a cantilever crane 9 is installed on the base 1, which facilitates lifting the impeller 10 to any position.

[0025] Preferably, an electrical control system 8 is installed on the base 1. This system is connected to the pressure application drive 402, the tilting drive 302, the lifting drive 304, the spoke-type tension / compression sensor 404, the pneumatic control system 7, and the cantilever crane 9. The electrical control system 8 includes a PLC controller, a touchscreen, and a buzzer. The PLC controller is connected to the pressure application drive 402, the tilting drive 302, the lifting drive 304, the spoke-type tension / compression sensor 404, the pneumatic control system 7, the cantilever crane 9, the touchscreen, and the buzzer. The strain received by the spoke-type tension / compression sensor 404 is converted into a 4-20mA signal and transmitted to the PLC (Programmable Logic Controller). The PLC converts the received signal into a force value. The PLC transmits the force value to the touchscreen via a network cable. The touchscreen stores the force value in a chip, thus recording the entire pressing and disassembly process of the fan dummy shaft. When it's necessary to check whether the worker has properly pressed the impeller 10 dummy shaft during a specific time period, the touchscreen can be opened to query the records for that time period (recorded in time-pressure format, with time in year-month-day-hour-minute-second format and pressure in tons format). The pressing force of the dummy shaft during this period can be used to determine if it meets the value required in the process document, thus judging the pressing status of the impeller 10 dummy shaft. If the electric cylinder applies a force exceeding the set value to the dummy shaft pressing fixture 5 during the worker's pressing of the impeller 10 dummy shaft, the PLC will activate the buzzer, which will sound an alarm. Simultaneously, the PLC will send a command to the driver of the pressure application drive 402 (electric cylinder) to stop its operation.

[0026] A spoke-type tension / compression sensor 404 is installed at the output end of the pressure application drive 402 (electric cylinder). The lower end of the spoke-type tension / compression sensor 404 is fitted with the first upper fixture 501 of the dummy shaft press-fit fixture 5 (the dummy shaft press-fit fixture 5 is a replaceable structure, facilitating the press-fitting and disassembly of dummy shafts for different models of fans). The first lower fixture 502 of the dummy shaft press-fit fixture 5 is mounted on the bearing 2 and clamped by the clamping cylinder 201. When the operator needs to perform a dynamic balancing test on the fan impeller 10, they first control the tilting drive 302 to tilt the mechanism to a horizontal angle, such as... Figure 3As shown, the first lower fixture 502 of the matching dummy shaft pressing fixture 5 is placed in the middle of the support platform 2. After placement, the clamping cylinder 201 is controlled to press the first lower fixture 502 tightly. The first upper fixture 501 of the matching dummy shaft pressing fixture 5 is securely connected to the spoke-type tension and pressure sensor 404. The fan impeller 10 is suspended on the first lower fixture 502 of the dummy shaft pressing fixture 5 using the cantilever crane 9. The dummy shaft is placed in the middle shaft hole position. Then, the support platform 2 is controlled to move into the gantry frame 401, so that the pressure application drive 402 (electric cylinder) extends downward to apply pressure, thereby pushing the dummy shaft into the middle shaft hole of the impeller 10. When the pressure application drive 402 (electric cylinder) extends downward to apply pressure to press down the dummy shaft, the spoke-type tension and pressure sensor 404 monitors the force pressing down on the dummy shaft at all times. When the force value reaches the value specified in the process document, the pressure application drive 402 (electric cylinder) stops pressing down. After the dummy shaft is press-fitted, the pressure application drive 402 (electric cylinder) retracts, and the clamping cylinder 201 on the support 2 releases the first lower fixture 502 of the dummy shaft press-fit fixture 5. Then, the linear drive pushes the impeller 10 and the dummy shaft press-fit fixture 5 out of the gantry 401 together, and controls the tilting drive 302 to tilt the tilting mechanism to a vertical angle. Figure 4 As shown, when pushed to the tilting mechanism, the impeller 10 is engaged in the U-shaped part 305 of the tilting mechanism, and then the tilting drive 302 is controlled to tilt the tilting mechanism to a horizontal position, as shown. Figure 1 As shown, the fan impeller 10 with the pre-installed dummy shaft is then hoisted onto the dynamic balancing machine using the cantilever crane 9 for dynamic balancing test.

[0027] During the dummy shaft disassembly, the wind turbine impeller 10, which has already undergone dynamic balancing testing, is lifted off the dynamic balancing testing machine using a cantilever crane 9. It is then lifted onto the second lower fixture 602 of the dummy shaft disassembly fixture 6 on the support platform 2 (the previous dummy shaft pressing fixture 5 needs to be replaced with the corresponding model of dummy shaft disassembly fixture 6). The second upper fixture 601 of the matching dummy shaft disassembly fixture 6 is securely connected to the spoke-type tension / compression sensor 404. Then, the pressure is controlled to apply downward pressure using the drive component 402 (electric cylinder). This causes the second upper fixture 601 of the disassembly fixture to push the dummy shaft out of the central hole of the wind turbine impeller 10, completing the disassembly of the wind turbine dummy shaft. After the dummy shaft has fallen out of the central hole of the wind turbine impeller 10, the worker removes it and places it in the dummy shaft storage box. Then, the clamping cylinder 201 is released, and the linear drive component pushes the support 2 and the impeller 10 out of the gantry frame 401 together. The worker then transfers the fan impeller 10, which has had its dummy shaft removed, to the next workstation for the next assembly step.

[0028] During the press-fitting process of the dummy shaft, the spoke-type tension / compression sensor 404 between the end of the pressure application drive component 402 (electric cylinder) and the first upper tooling 501 of the dummy shaft press-fitting fixture 5 constantly senses the force applied by the electric cylinder to the dummy shaft. When the force reaches the value specified in the process document, the electric cylinder stops pressing down, and at the same time, the buzzer above the machine sounds to alert the operator. Simultaneously, the electrical control system 8 records the corresponding information for later fault tracing.

[0029] This utility model relates to a press-fit and disassembly device for a dummy shaft of a wind turbine. Through the cooperation of a base 1, a support platform 2, a dummy shaft press-fit fixture 5, a dummy shaft disassembly fixture 6, an impeller tilting mechanism 3, and a disassembly / assembly mechanism 4, it achieves mechanized press-fitting and disassembly of the dummy shaft and impeller 10. This ensures controllability of various values ​​during the press-fitting and disassembly process, guarantees consistency of force during press-fitting or disassembly, improves the quality stability of the impeller 10, and solves the technical problem in existing technologies where manual press-fitting or disassembly of the dummy shaft of the wind turbine impeller 10 can easily affect the quality of the impeller 10. When performing dynamic balancing operations on large-mass impellers 10, this utility model can reduce the operator's workload, save time during dummy shaft press-fitting or disassembly, and improve efficiency.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for pressing and disassembling a dummy shaft for a fan, characterized in that, The system includes a base (1), a support platform (2), a dummy shaft press-fitting fixture (5), a dummy shaft disassembly fixture (6), an impeller tilting mechanism (3), and a disassembly / assembly mechanism (4). The dummy shaft press-fitting fixture (5) assists in pressing the dummy shaft into the impeller (10), and the dummy shaft disassembly fixture (6) assists in disassembling the dummy shaft from the impeller (10). The disassembly / assembly mechanism (4) includes a gantry frame (401) and a pressure application drive (402). The gantry frame (401) is fixed to the base (1). The pressure application drive (402) is mounted on the gantry (401); the impeller tilting mechanism (3) includes a tilting frame (301) and a tilting drive (302). The tilting frame (301) is rotatably mounted on the base (1), and the tilting drive (302) is mounted on the base (1) and drivenly connected to the tilting frame (301); the support platform (2) is slidably mounted on the base (1), and the support platform (2) is used to support the impeller (10).

2. The press-fitting and disassembling device for a fan dummy shaft according to claim 1, characterized in that, The flipping mechanism also includes a lifting frame (303) and a lifting drive (304). The lifting frame (303) is slidably mounted on the flipping frame (301), and the lifting drive (304) is mounted on the flipping frame (301) and driven to the lifting frame (303). The lifting frame (303) is provided with a U-shaped part (305) for engaging the impeller (10).

3. The press-fitting and disassembling device for the dummy shaft of a fan according to claim 2, characterized in that, The base (1) is provided with a slide rail (101), the support platform (2) is slidably installed on the slide rail (101), and the slide rail (101) is connected between the tilting frame (301) and the gantry frame (401).

4. The press-fitting and disassembling device for a fan dummy shaft according to claim 3, characterized in that, The output end of the pressure application drive (402) is equipped with a spoke-type tension / compression sensor (404).

5. The press-fitting and disassembling device for a fan dummy shaft according to claim 4, characterized in that, A linear drive is installed on the base (1), and the linear drive is driven to the support platform (2).

6. The press-fitting and disassembling device for a fan dummy shaft according to claim 5, characterized in that, The linear drive component is a cylinder, and a pneumatic control system (7) is installed on the base (1), and the pneumatic control system (7) is connected to the cylinder.

7. The press-fitting and disassembling device for a fan dummy shaft according to claim 6, characterized in that, A cantilever crane (9) is installed on the base (1).

8. The press-fitting and disassembling device for a fan dummy shaft according to claim 7, characterized in that, An electronic control system (8) is installed on the base (1). The electronic control system (8) is connected to the pressure application drive (402), the tilting drive (302), the lifting drive (304), the spoke-type tension and pressure sensor (404), the pneumatic control system (7), and the cantilever crane (9).

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