Rotor disassembling and assembling lifting appliance with automatic balancing function

Abstract

The utility model relates to an automatic balancing rotor disassembly and assembly lifting appliance which comprises a lifting appliance body which comprises a cross beam and a vertical beam; the quick-change shaft sleeve is in butt joint with the vertical beam; the adjusting device comprises a driving part and a balance hanging ring pushed by the driving part, and the balance hanging ring moves along the cross beam; the detection control assembly comprises a tilt angle sensor and a controller connected with the tilt angle sensor, the tilt angle sensor detects the tilt angle of the quick-change shaft sleeve and transmits tilt angle information to the controller, and the controller controls the driving part to push the balance hanging ring to move by a corresponding distance; the purpose of accurate adjustment is achieved, and the iron core is prevented from being scratched.

Description

Technical Field

[0001] This invention relates to the field of motor assembly technology, and more particularly to an automatic balancing rotor disassembly and assembly lifting tool. Background Technology

[0002] When horizontally disassembling and assembling a motor rotor, it is necessary to keep the rotor axially horizontal during lifting. Since the rotor needs to pass through the stator core, only one end of the shaft can be fixed using an L-shaped lifting tool. Because the center of gravity of each rotor is different, workers need to manually adjust the balance rings to the approximate position for a trial lift. If it is not level, the rotor is lowered and repeatedly adjusted, which is time-consuming and labor-intensive. In addition, due to the limitations of visual balancing, and the fixed distance between the balance rings of the lifting tool, the rotor has a certain horizontal tilt angle during actual lifting, which makes it very easy to scrape the core. Therefore, automatic rotor assembly devices have been developed.

[0003] According to Chinese patent CN115882670A, a motor rotor-push device is disclosed. The device includes a fixed part, a movable part on the fixed part, and a hanging part on the movable part. The movable part is used to drive the hanging part to slide, and the hanging part is used to hook into the hook of the lifting device. A tooling ring is detachably connected to the fixed part, and the tooling ring is used to fix the motor rotor. The proposed motor rotor-push device, with the setting of the hanging part, can be used in conjunction with an external lifting device. It can utilize the existing lifting devices on the production line. The movable part drives the hanging part to move, so that the device is in a relatively horizontal state when moving on the lifting device. However, the device cannot be precisely adjusted, and its angle still needs to be visually balanced, which may cause scratches on the iron core.

[0004] Therefore, it is necessary to develop an automatic balancing rotor assembly and disassembly lifting tool to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a rotor assembly and disassembly lifting tool with precise adjustment and automatic balancing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic balancing rotor assembly / disassembly lifting device, comprising:

[0007] The lifting device body includes a horizontal beam and a vertical beam;

[0008] Quick-change bushing, connected to the vertical beam;

[0009] The adjustment device includes a drive element and a balance ring pushed by the drive element, the balance ring moving along the crossbeam;

[0010] The detection and control component includes a tilt sensor and a controller connected to the tilt sensor. The tilt sensor detects the tilt angle of the rotor shaft and transmits the tilt angle information to the controller. The controller controls the drive component to push the balance ring to move a corresponding distance.

[0011] Furthermore, the detection and control component includes an outer box, the tilt sensor is fixed inside the outer box, the outer box has adjustable magnetism, and the tilt sensor is attracted to the end face of the rotor shaft through the outer box.

[0012] Furthermore, the tilt sensor includes a first tilt sensor and a second tilt sensor, both of which are installed inside the outer casing. The first tilt sensor transmits information to the controller, and the second tilt sensor is used for alarm purposes.

[0013] Furthermore, the controller is fixedly mounted on the outside of the lifting device body and connected to the tilt sensor via a flexible circuit.

[0014] Furthermore, a mounting bracket is installed on one side of the controller, and the mounting bracket is fixedly installed on the outside of the lifting device body to hold the outer box.

[0015] Furthermore, the crossbeam has a clearance groove that runs through its upper and lower surfaces, the clearance groove extending from one end of the crossbeam to the other end, and a lead screw is provided inside it, with the balance ring sleeved on the lead screw.

[0016] Furthermore, the two sides of the upper and lower ends of the balance ring extend outward to form stepped surfaces, which are located above and below the crossbeam, respectively.

[0017] Furthermore, an auxiliary roller is provided on the outer side of the balance ring, and the auxiliary roller slides on the upper surface of the crossbeam.

[0018] Furthermore, the balance ring is also equipped with a pressure sensor.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is an automatic balancing rotor assembly and disassembly lifting tool with the feature of precise adjustment. It detects the tilt angle of the rotor shaft through a tilt sensor and transmits the tilt angle information to the controller. The controller controls the drive component to push the balance lifting ring to move a corresponding distance, thereby achieving the purpose of precise adjustment and avoiding scratching the iron core. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0021] Figure 1 This is a three-dimensional structural diagram of an automatic balancing rotor assembly and disassembly lifting tool according to the present invention;

[0022] Figure 2 for Figure 1 A partial structural diagram of the automatic balancing rotor assembly and disassembly lifting device is shown.

[0023] Figure 3 for Figure 1 This is a schematic diagram of the rotor assembly and disassembly lifting device with automatic balancing from another angle.

[0024] In the diagram: 1. Lifting device body; 2. Quick-change bushing; 3. Adjustment device; 4. Detection and control components; 11. Horizontal beam; 12. Vertical beam; 111. Clearance groove; 121. Connecting ring; 122. Reinforcing rib; 30. Bearing; 31. Drive component; 32. Balance lifting ring; 33. Lead screw; 321. Step surface; 322. Auxiliary roller; 323. Pressure sensor; 324. Warning light; 41. Tilt sensor; 42. Outer box; 43. Controller; 44. Card holder; 411. First tilt sensor; 412. Second tilt sensor; 100. Rotor shaft; 200. Alarm light. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please refer to Figures 1 to 3 This utility model is an automatic balancing rotor disassembly and assembly lifting tool, which includes a lifting tool body 1, a quick-change bushing 2 installed on the lifting tool body 1, an adjustment device 3 located on the top of the lifting tool body 1, and a detection and control component 4 for monitoring the quick-change bushing 2 and the adjustment device 3.

[0027] Please refer to Figures 1 to 2 The lifting device body 1 includes a horizontal beam 11 and a vertical beam 12. The horizontal beam 11 is horizontal and has a clearance groove 111 that runs through its upper and lower surfaces. The clearance groove 111 extends from one end of the horizontal beam 11 to the other end. One end of the vertical beam 12 is fixedly connected to the horizontal beam 11, and the other end extends vertically outward. The horizontal beam 11 and the vertical beam 12 are in a vertical relationship. The end of the vertical beam 12 is provided with a connecting ring 121. The outer side of the connecting ring 121 is provided with a reinforcing rib 122. The reinforcing rib 122 surrounds the connecting ring 121 to improve the strength of the connecting ring 121.

[0028] The quick-change bushing 2 is installed on the connecting ring 121, and its diameter needs to be changed to adapt to different rotors.

[0029] Please refer to Figures 1 to 3The adjustment device 3 includes a drive component 31 and a balance ring 32 pushed by the drive component 31. Bearings 30 are installed at both ends of the clearance groove 111, and a lead screw 33 is provided inside the groove. The bearings 30 are fixed to both ends of the crossbeam 11. The lead screw 33 extends along the clearance groove 111, with both ends extending into the bearings 30. It extends from one end of the clearance groove 111 to the other end and is connected to the drive component 31. The drive component 31 is a stepper motor. The balance ring 32 is sleeved on the lead screw 33. The drive component 31 drives the lead screw 33 to rotate, so that the balance ring 32 moves along the lead screw 33.

[0030] The two sides of the upper and lower ends of the balance ring 32 extend outward to form stepped surfaces 321. The stepped surfaces 321 are located above and below the crossbeam 11, respectively, restricting the movement direction of the balance ring 32. An auxiliary roller 322 is provided on the outer side of the balance ring 32. The auxiliary roller 322 slides on the upper surface of the crossbeam 11. The balance ring 32 is also equipped with a pressure sensor 323. The pressure sensor 323 is used to detect whether the balance ring 32 is under the load. When the pressure exceeds a certain value of the self-weight of the rotor disassembly and assembly lifting tool of this utility model, the balance ring 32 will work automatically. Preferably, a warning light 324 is installed on the lower surface of the balance ring 32, which is used in conjunction with the pressure sensor 323.

[0031] Please refer to Figures 1 to 2 The detection and control component 4 includes a tilt sensor 41, an outer casing 42 housing the tilt sensor 41, and a controller 43 connected to the tilt sensor 41. The tilt sensor 41 is a device used to measure the tilt angle of an object relative to the direction of gravity; it is prior art and therefore will not be explained in detail. The tilt sensor 41 is fixed inside the outer casing 42. The outer casing 42 has adjustable magnetism, meaning that the magnetic properties of the material in the outer casing 42 can be changed by external conditions, such as an electromagnet. The tilt sensor 41 is attracted to the end face of the rotor shaft 100 through the outer casing 42. The controller 43 is fixedly mounted on the outside of the lifting device body 1 and is connected to the tilt sensor 41 via a flexible circuit. Furthermore, a mounting bracket 44 is installed on one side of the controller 43, which is fixedly mounted on the outside of the lifting device body 1 to hold the outer casing 42.

[0032] In another embodiment, the tilt sensor 41 includes a first tilt sensor 411 and a second tilt sensor 412. Both the first tilt sensor 411 and the second tilt sensor 412 are installed inside the outer box 42. The first tilt sensor 411 is used to detect the tilt angle of the rotor shaft 100 and transmit the information to the controller 43. The controller 43 then controls the drive component 31 to push the balance ring 32 to move along the lead screw 33 and adjust the position of the balance ring 32. The second tilt sensor 412 is used to detect the tilt angle of the rotor shaft 100. When the tilt angle exceeds the set value, the second tilt sensor 412 issues a warning signal, causing the alarm light 200 to flash and the buzzer to sound an alarm.

[0033] When using the automatic balancing rotor assembly and disassembly lifting tool of this utility model, the quick-change bushing 2 is assembled with the lifting tool body 1, the balance ring 32 is moved to the approximate position, the rotor shaft 100 is inserted into the quick-change bushing 2, and the tilt sensor 41 is attached to the end face of the rotor shaft 100 through the outer box 42. Lifting begins, and the crane is operated to lift the balance ring 32 in jogs. With each jog, the tilt sensor 41 detects the tilt angle of the rotor shaft 100 and transmits the signal to the controller 43. The controller 43 then controls the drive component 31 to push the balance ring 32 to move along the lead screw 33, adjusting the position of the balance ring 32. At the same time, the controller 43 and the tilt sensor 41 have acceleration compensation and anti-shake functions. The stepper motor is only driven when the acceleration is 0, which prevents incorrect balancing during crane acceleration, deceleration or micro-movement, thus preventing danger.

[0034] This utility model is an automatic balancing rotor assembly and disassembly lifting tool, which features precise adjustment. It detects the tilt angle of the rotor shaft 100 through a tilt sensor and transmits the tilt angle information to the controller. The controller controls the drive component to push the balance lifting ring to move the corresponding distance, thereby achieving the purpose of precise adjustment and avoiding scratching the iron core.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatically balanced rotor hoist, characterized in that, The utility model relates to a quick-change sling body (1) and a detection control assembly (4) for a rotor shaft (100) of a wind turbine. The quick-change sling body (1) comprises a crossbeam (11) and a vertical beam (12). The quick-change sleeve (2) is connected with the vertical beam (12) and is used for fixing the rotor shaft (100). The adjusting device (3) comprises a driving member (31) and a balance sling ring (32) pushed by the driving member (31), and the balance sling ring (32) moves along the crossbeam (11). The detection control assembly (4) comprises an inclination sensor (41) and a controller (43) connected with the inclination sensor (41), the inclination sensor (41) detects the inclination angle of the rotor shaft (100) and transmits the inclination angle information to the controller (43), and the controller (43) controls the driving member (31) to push the balance sling ring (32) to move a corresponding distance.

2. The automatically trimmed rotor disassembly hoist of claim 1, wherein, The detection control assembly (4) comprises an outer box (42), the inclination sensor (41) is fixed in the outer box (42), the outer box (42) has adjustable magnetism, and the inclination sensor (41) is adsorbed on the end face of the rotor shaft (100) through the outer box (42).

3. The automatically trimmed rotor disassembly hoist of claim 2, wherein, The inclination sensor (41) comprises a first inclination sensor (411) and a second inclination sensor (412), the first inclination sensor (411) and the second inclination sensor (412) are both installed in the outer box (42), the first inclination sensor (411) transmits information to the controller (43), and the second inclination sensor (412) is used for alarming.

4. The automatically trimmed rotor disassembly hoist of claim 1, wherein, The controller (43) is fixed on the outside of the sling body (1) and is connected with the inclination sensor (41) through a flexible line.

5. The automatically trimmed rotor disassembly hoist of claim 3, wherein, One side of the controller (43) is provided with a clamping seat (44), the clamping seat (44) is fixed on the outside of the sling body (1) and is used for placing the outer box (42).

6. The automatically trimmed rotor disassembly hoist of claim 1, wherein, The crossbeam (11) has an air-avoiding groove (111) penetrating through the upper and lower surfaces thereof, the air-avoiding groove (111) extends from one end of the crossbeam (11) to the other end thereof, a lead screw (33) is arranged in the air-avoiding groove (111), and the balance sling ring (32) is sleeved with the lead screw (33).

7. The automatically balanced, rotor deinstallation spreader of claim 1, wherein, The balance sling ring (32) is provided with stepped surfaces (321) outwardly extending from both sides of the upper and lower ends thereof, and the stepped surfaces (321) are respectively located above and below the crossbeam (11).

8. The automatically balanced, rotor deinstallation spreader of claim 1, wherein, The balance sling ring (32) is provided with auxiliary rollers (322) on the outside thereof, and the auxiliary rollers (322) slide on the upper surface of the crossbeam (11).

9. The automatically balanced, rotor deinstallation spreader of claim 1, wherein, The balance sling ring (32) is further provided with a pressure sensor (323).

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