Automatic dismounting and mounting equipment for generator rotor

Abstract

The invention discloses automatic dismounting and mounting equipment for a generator rotor, and belongs to the technical field of generator maintenance equipment. Comprising a rotor fixing mechanism used for clamping a rotor; the bearing moving mechanism comprises an axial moving assembly and a horizontal moving assembly, the rotor fixing mechanism is horizontally and movably arranged on the axial moving assembly through the horizontal moving assembly, and the axial moving assembly is used for driving the rotor to move in the axis direction of the rotor; the horizontal gap adjusting mechanism comprises a horizontal detection module which is used for detecting the horizontal gap between the rotor and the stator in real time; the driving mechanism is connected with the horizontal moving assembly and used for driving the rotor to adjust the horizontal position; and the control module is in communication connection with the horizontal detection module and the driving mechanism and is used for automatically adjusting the horizontal gap deviation between the rotor and the stator according to the horizontal gap data, so that the horizontal gap is always maintained in a technical standard range, the data deviation caused by human intervention is reduced, and the accuracy and reliability of operation are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of generator maintenance equipment, and particularly relates to an automatic disassembly and assembly device for a generator rotor. Background Art

[0002] A certain steel plant currently uses a 135MW extraction condensing generator set for surplus energy power generation. This generator set is equipped with a 400-ton / hour ultra-high pressure boiler and uses a mixed combustion of coke oven gas, blast furnace gas, and converter gas as fuel. The rotor in this generator set weighs 40.1 tons, is 10474 mm long, and has a maximum diameter of 1140 mm.

[0003] When performing periodic comprehensive disassembly inspections and repairs on this generator set or in the case of emergency repairs due to equipment abnormalities, it is necessary to remove the generator rotor. However, there are several main problems during the disassembly and assembly process:

[0004] 1. Difficult hoisting: Due to the long length and large weight of the rotor, hoisting assistance by a crane is required during removal. The entire operation process requires extremely stable crane operation and very high precision requirements, increasing the operation difficulty.

[0005] 2. Lack of automatic adjustment function: During the sliding process at the excitation end, there is neither a limit track nor an automatic adjustment function, and only basic support and sliding functions are provided. This results in a large swing amplitude of the rotor during movement, and it is necessary to manually frequently adjust the gap (mainly in the horizontal direction) between the rotor and the stator to avoid collision between the two.

[0006] 3. Low maintenance efficiency: As the rotor is gradually withdrawn from the stator, in order to maintain balance and ensure safety, the crane needs to continuously change the lifting point position. This not only takes time but also greatly reduces the maintenance efficiency and prolongs the maintenance time. Summary of the Invention

[0007] The present invention addresses the above problems existing in the prior art and proposes an automatic disassembly and assembly device for a generator rotor that can prevent collision between the rotor and the stator, improve maintenance efficiency, and save disassembly and assembly time.

[0008] The present invention can be implemented by the following technical solutions:

[0009] An automatic disassembly and assembly device for a generator rotor, comprising:

[0010] A rotor fixing mechanism for clamping the rotor;

[0011] The bearing moving mechanism comprises an axial moving assembly and a horizontal moving assembly, wherein the rotor fixing mechanism is horizontally movably arranged on the axial moving assembly through the horizontal moving assembly, and the axial moving assembly is used to drive the rotor to move along its axial direction;

[0012] Horizontal gap adjustment mechanism, comprising:

[0013] A horizontal detection module, which is arranged on the stator and is used to detect the horizontal gap between the rotor and the stator in real time;

[0014] A driving mechanism, which is connected to the horizontal moving assembly and is used to drive the rotor to adjust its horizontal position;

[0015] A control module is connected to the horizontal detection module and the driving mechanism for controlling the driving mechanism according to the horizontal gap data fed back by the horizontal detection module, so as to automatically adjust the horizontal gap deviation between the rotor and the stator.

[0016] As a further improvement of the present invention, the axial moving assembly includes an axial track and an axial moving trolley, and the rotor is driven to move along the axial track by the axial moving trolley.

[0017] As a further improvement of the present invention, the horizontal moving assembly comprises:

[0018] A mounting platform, which is mounted on the axially movable trolley through a fixing plate, and the mounting platform has a horizontal track arranged in a horizontal direction;

[0019] A roller is arranged at the bottom of the rotor fixing mechanism, and the roller matches the horizontal track.

[0020] As a further improvement of the present invention, the driving mechanism includes a servo driver, a servo motor and a transmission screw, the transmission screw is transmission-connected to the bottom of the rotor fixing mechanism, and the servo motor drives the transmission screw to rotate to drive the rotor fixing mechanism to move along the horizontal track.

[0021] As a further improvement of the present invention, a vertical gap adjustment mechanism is also included, which has:

[0022] A vertical detection module, which is arranged on the stator and is used to detect the vertical gap between the rotor and the stator in real time;

[0023] A height adjustment component is connected to the mounting platform and is used to adjust the vertical distance between the mounting platform and the fixing plate.

[0024] As a further improvement of the present invention, the height adjustment assembly includes an adjustment stud, which is arranged on the mounting platform and is used to adjust the height of the mounting platform.

[0025] As a further improvement of the present invention, the height adjustment assembly further includes a locking bolt for connecting the mounting platform and the fixing plate to lock the position of the mounting platform.

[0026] As a further improvement of the present invention, the horizontal detection module and the vertical detection module are respectively distributed on the horizontal two sides and the vertical two sides of the outer end face of the stator.

[0027] As a further improvement of the present invention, the axial movement trolley is provided with a first pull ring, and the fixing plate is provided with a second pull ring.

[0028] As a further improvement of the present invention, the rotor fixing mechanism is arranged as a clamp, and the clamp has a through hole for the rotor to pass through.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. Real-time horizontal clearance adjustment: The horizontal detection module is used to monitor and feedback the horizontal clearance data between the rotor and the stator in real time. The control module automatically adjusts the action of the driving mechanism according to the real-time horizontal clearance data, so that the horizontal clearance is always maintained within the technical standard range, greatly reducing the data deviation caused by human intervention and improving the accuracy and reliability of the operation;

[0031] 2. Enhanced safety: Reduced the use frequency of the overhead crane during the hoisting process and the risks that may be brought by its unstable operation, and avoided the collision accident between the rotor and the stator caused by unstable hoisting;

[0032] 3. Greatly improved maintenance efficiency: The automatic horizontal clearance adjustment mechanism eliminates the need to frequently adjust the hoisting point position, simplifies the disassembly and assembly process, thus greatly shortening the time required for maintenance, enabling the generator to be put into operation earlier, and improving the power generation efficiency;

[0033] 4. Enhanced adaptability and flexibility: The equipment can adapt to the requirements of generator rotors of different specifications and models, has strong versatility, is suitable for disassembly and assembly operations in various application scenarios, and can flexibly adjust parameter settings according to different maintenance requirements to meet diverse working conditions and technical specifications.

[0034] 5. Reduced labor costs and labor intensity: The improvement of automation means that less manpower is required to participate in complex and time-consuming disassembly and assembly tasks, simplifies the operation process, not only reduces labor costs, but also reduces the labor intensity of workers. Description of the Drawings

[0035] Figure 1 It is a schematic structural diagram of the automatic disassembly and assembly equipment for generator rotors of the present invention;

[0036] Figure 2 It is an exploded view of the automatic disassembly and assembly equipment for the generator rotor of the present invention;

[0037] Figure 3 It is a schematic structural diagram when the rotor is disassembled and assembled by the automatic disassembly and assembly equipment for the generator rotor of the present invention.

[0038] In the figure, 100 is a clamp; 101 is a roller; 110 is an axial movement assembly; 111 is an axial track; 112 is an axial movement trolley; 113 is a first pull ring; 120 is a horizontal movement assembly; 121 is an installation platform; 122 is a horizontal track; 130 is a horizontal detection module; 140 is a driving mechanism; 141 is a servo driver; 142 is a servo motor; 143 is a transmission lead screw; 150 is a fixing plate; 151 is a second pull ring; 160 is a vertical detection module; 170 is an adjusting stud; 171 is a locking bolt; 200 is a rotor; 300 is a stator. Detailed implementation manners

[0039] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical methods of the present invention are further described, but the present invention is not limited to these embodiments.

[0040] As Figures 1 - 3 shown, the present invention provides an automatic disassembly and assembly equipment for a generator rotor, including:

[0041] A rotor fixing mechanism, which is used to clamp the rotor 200. In this embodiment, this mechanism adopts the form of a clamp 100. The clamp 100 has a through hole for the rotor 200 to pass through. After the clamp 100 is locked, the fixing stability of the rotor 200 is ensured;

[0042] A carrying and moving mechanism, which includes an axial movement assembly 110 and a horizontal movement assembly 120. The rotor fixing mechanism is horizontally movably arranged on the axial movement assembly 110 through the horizontal movement assembly 120. The axial movement assembly 110 is used to drive the rotor 200 to move along its axis direction;

[0043] That is to say, the axial movement assembly 110 is used to drive the rotor 200 to move along its axis direction to realize the disassembly and assembly of the rotor 200, while the horizontal movement assembly 120 is used to adjust the horizontal position of the rotor 200, that is, to adjust the horizontal gap between the rotor 200 and the stator 300;

[0044] A horizontal gap adjusting mechanism, including:

[0045] A horizontal detection module 130, which is arranged on the stator 300 and is used to detect the horizontal gap between the rotor 200 and the stator 300 in real time;

[0046] A driving mechanism 140, which is connected to the horizontal movement assembly 120 and is used to drive the adjustment of the horizontal position of the rotor 200;

[0047] A control module, which is communicatively connected to the horizontal detection module 130 and the driving mechanism 140, controls the operation of the driving mechanism 140 according to the horizontal gap data fed back by the horizontal detection module 130, so as to automatically adjust the horizontal gap deviation between the rotor 200 and the stator 300.

[0048] Specifically, during the process of disassembling and assembling the generator rotor 200, the principle of automatically adjusting the horizontal gap deviation between the rotor 200 and the stator 300 is as follows:

[0049] 1. Real-time monitoring of the horizontal detection module 130: The horizontal detection module 130 is installed on the stator 300, usually distributed on the horizontal two sides of the outer end face of the stator 300, and is used to detect the horizontal gap between the rotor 200 and the stator 300 in real time. These sensors can accurately measure the distance between the two and feed the data back to the control module;

[0050] 2. Data processing and decision-making: After receiving the data from the horizontal detection module 130, the control module will analyze it according to the preset technical standards or parameters. If it is found that the current horizontal gap exceeds the allowable range, the control system will start the corresponding adjustment program;

[0051] 3. The driving mechanism 140 executes the adjustment command: The driving mechanism 140 is connected to the horizontal moving component 120. When the horizontal gap needs to be adjusted, the control module sends an instruction to the driving mechanism 140 to drive the rotor fixing mechanism to move along the horizontal track 122, thereby changing the horizontal position of the rotor 200.

[0052] During the whole disassembly and assembly process, the horizontal detection module 130 continuously monitors the change of the horizontal gap. If the horizontal gap between the rotor 200 and the stator 300 exceeds the allowable value, the control module automatically adjusts the horizontal position of the rotor 200 according to the preset program to ensure that the horizontal gap between the rotor 200 and the stator 300 meets the technical standards.

[0053] The automatic disassembly and assembly equipment for the generator rotor 200 provided in this embodiment has at least the following advantages:

[0054] 1. Real-time horizontal gap adjustment:

[0055] The horizontal detection module 130 is used to monitor and feed back the horizontal gap data between the rotor 200 and the stator 300 in real time, ensuring precise control of the relative positions of the two;

[0056] The control module automatically adjusts the operation of the driving mechanism 140 according to the real-time horizontal gap data, so that the horizontal gap is always maintained within the technical standard range, greatly reducing the data deviation caused by human intervention and improving the accuracy and reliability of the operation.

[0057] 2. Enhanced security:

[0058] The use frequency of the overhead crane during the hoisting process and the risks that may be caused by its unstable operation are reduced, and collision accidents between the rotor 200 and the stator 300 caused by unstable hoisting are avoided;

[0059] The automated control system can more accurately manage the movement path of the rotor 200, reducing potential safety hazards that may occur in traditional manual operations and providing a safer working environment for workers.

[0060] 3. Significantly improve maintenance efficiency:

[0061] The automated horizontal gap adjustment mechanism eliminates the need to frequently adjust the position of the lifting points and simplifies the disassembly and assembly process, thereby significantly shortening the time required for maintenance, prompting the generator to be put into use earlier and improving power generation efficiency.

[0062] 4. Enhanced adaptability and flexibility:

[0063] The equipment can adapt to the requirements of generator rotors 200 of different specifications and models, has strong versatility, and is suitable for disassembly and assembly operations in various application scenarios;

[0064] Parameter settings can be flexibly adjusted according to different maintenance requirements to meet diverse working conditions and technical specifications.

[0065] 5. Reduce labor costs and labor intensity:

[0066] The increased degree of automation means that less manpower is required to participate in complex and time-consuming disassembly and assembly tasks, which simplifies the operating process, not only reducing labor costs but also alleviating the labor intensity of workers.

[0067] Preferably, the axial moving assembly 110 includes an axial rail 111 and an axial moving trolley 112. The axial moving trolley 112 drives the rotor 200 to move along the axial rail 111. The axial rail 111 is used to plan the disassembly and assembly path of the rotor 200, thereby effectively controlling and minimizing the horizontal position deviation caused by the movement process.

[0068] Preferably, the horizontal moving assembly 120 comprises:

[0069] The mounting platform 121 is mounted on the axial moving trolley 112 through a fixing plate 150. The mounting platform 121 has a horizontal track 122 arranged along the horizontal direction, where the horizontal track 122 is perpendicular to the axial track 111;

[0070] The roller 101 is arranged at the bottom of the clamp 100. The roller 101 cooperates with the horizontal track 122. Thus, the clamp 100 can move along the horizontal track 122 through the roller 101, so as to adjust the horizontal position of the rotor 200.

[0071] Preferably, the driving mechanism 140 includes a servo driver 141, a servo motor 142 and a transmission lead screw 143. The transmission lead screw 143 is in transmission connection with the bottom of the rotor fixing mechanism. The servo motor 142 drives the transmission lead screw 143 to rotate to drive the rotor fixing mechanism to move along the horizontal track 122.

[0072] In this way, when it is necessary to adjust the horizontal gap between the rotor 200 and the stator 300, the driving mechanism 140 can push the clamp 100 and the rotor 200 thereon to move along the horizontal track 122, so as to accurately adjust the horizontal position of the rotor 200.

[0073] Preferably, it further includes a vertical gap adjusting mechanism, which has:

[0074] A vertical detection module 160, which is arranged on the stator 300 and is used to detect the vertical gap between the rotor 200 and the stator 300 in real time, and feed back the detected vertical gap data to the control module;

[0075] A height adjusting assembly, which is connected to the installation platform 121 and is used to adjust the vertical distance between the installation platform 121 and the fixing plate 150, so as to realize the adjustment of the vertical position of the rotor 200.

[0076] Furthermore, the height adjusting assembly includes an adjusting stud 170 and a locking bolt 171. Among them,

[0077] The adjusting stud 170 is arranged on the installation platform 121. By rotating the adjusting stud 170, the height of the installation platform 121 can be finely adjusted, so as to change the vertical position of the rotor 200 relative to the stator 300. This design allows the operator to make fine adjustments according to the data provided by the vertical detection module 160 to ensure an ideal vertical gap between the rotor 200 and the stator 300;

[0078] The locking bolt 171 is used to connect the installation platform 121 and the fixing plate 150 to lock the position of the installation platform 121. Once the required vertical gap is reached, the installation platform 121 can be firmly connected to the fixing plate 150 through the locking bolt 171 to prevent any accidental movement or position deviation.

[0079] It should be noted here that the adjustment of the vertical gap is carried out before the removal of the rotor 200. During the removal of the rotor 200, as long as it is ensured that the axial movement trolley 112 and the horizontal movement trolley do not derail, the vertical gap between the rotor 200 and the stator 300 will not exceed the allowable range. For this reason, the rollers 101 of the axial movement trolley 112 and the horizontal movement trolley are both set as wheels with flanges.

[0080] Specifically, before the removal of the rotor 200, after the vertical and horizontal positions of the rotor 200 are determined, the vertical position of the rotor 200 is locked by the locking bolt 171, and the servo motor 142 stops operating to lock the horizontal position of the rotor 200. Then the rotor 200 can be in a condition for movement. During the removal of the rotor 200, the vertical gap is monitored in real time. If the vertical gap accidentally exceeds the allowable value, the system stops and is readjusted. The horizontal gap is continuously monitored and adjusted in real time without stopping the machine for processing.

[0081] In addition, in this embodiment, the horizontal detection module 130 and the vertical detection module 160 preferably adopt displacement sensors. The displacement sensors have extremely high resolution and repeatability, can provide accurate distance measurements on a scale of millimeters or even smaller, and can quickly respond to changes in position and feed back data to the control system in real time. This is crucial for ensuring the safe distance between the rotor and the stator.

[0082] To ensure the accuracy of the data, the horizontal detection module 130 is distributed on the horizontal two sides of the outer end face of the stator, and the vertical detection module 160 is distributed on the vertical two sides of the outer end face of the stator. By symmetrically arranging the detection modules, data can be obtained from multiple angles, reducing the error caused by single-point measurement and improving the overall measurement accuracy.

[0083] Preferably, the axial movement trolley 112 is provided with a first pull ring 113 for pulling during the removal of the rotor 200, and the fixing plate 150 is provided with a second pull ring 151 for pulling during the installation of the rotor 200.

[0084] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed above, but also include technical solutions formed by any combination of the above technical features. The above is the specific implementation manner of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches are also regarded as the protection scope of the present invention.

[0085] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will change accordingly.

[0086] In addition, in the present invention, descriptions such as "first", "second", "one" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. Terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0087] The technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0088] The specific embodiments described herein are only illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automatic disassembly and assembly device for a generator rotor, characterized in that Comprising: A rotor fixing mechanism for clamping the rotor; A carrying and moving mechanism, which includes an axial moving component and a horizontal moving component. The rotor fixing mechanism is horizontally movably arranged on the axial moving component through the horizontal moving component, and the axial moving component is used to drive the rotor to move along its axis direction; A horizontal gap adjusting mechanism, including: A horizontal detection module, which is arranged on the stator and used to detect the horizontal gap between the rotor and the stator in real time; A driving mechanism, which is connected to the horizontal moving component and used to drive the horizontal position adjustment of the rotor; A control module, which is communicatively connected to the horizontal detection module and the driving mechanism, and controls the action of the driving mechanism according to the horizontal gap data fed back by the horizontal detection module to automatically adjust the horizontal gap deviation between the rotor and the stator.

2. The automatic disassembly and assembly device for a generator rotor according to claim 1, characterized in that, The axial moving component includes an axial track and an axial moving trolley, and the axial moving trolley drives the rotor to move along the axial track.

3. The automatic disassembly and assembly equipment for a generator rotor according to claim 1, characterized in that, The horizontal moving component includes: An installation platform, which is installed on the axial moving trolley through a fixing plate. The installation platform has a horizontal track arranged in the horizontal direction; Rollers arranged at the bottom of the rotor fixing mechanism, and the rollers cooperate with the horizontal track.

4. The automatic disassembly and assembly device for a generator rotor according to claim 1, characterized in that, The driving mechanism includes a servo driver, a servo motor and a transmission lead screw. The transmission lead screw is drivingly connected to the bottom of the rotor fixing mechanism, and the servo motor drives the transmission lead screw to rotate to drive the rotor fixing mechanism to move along the horizontal track.

5. The automatic disassembly and assembly device for a generator rotor according to claim 3, wherein, It further includes a vertical gap adjusting mechanism, which has: A vertical detection module, which is arranged on the stator and used to detect the vertical gap between the rotor and the stator in real time; A height adjusting component, which is connected to the installation platform and used to adjust the vertical distance between the installation platform and the fixing plate.

6. The automatic disassembly and assembly equipment for a generator rotor according to claim 5, characterized in that, The height adjusting component includes an adjusting stud, which is arranged on the installation platform and used to adjust the height of the installation platform.

7. The automatic disassembly and assembly equipment for a generator rotor according to claim 5, characterized in that, The height adjusting component further includes a locking bolt, which is used to connect the installation platform and the fixing plate to lock the position of the installation platform.

8. The automatic disassembly and assembly equipment for a generator rotor according to claim 5, characterized in that, The horizontal detection module and the vertical detection module are respectively distributed on the horizontal two sides and the vertical two sides of the outer end face of the stator.

9. The automatic disassembly and assembly equipment for a generator rotor according to claim 1, characterized in that, The axial moving trolley is provided with a first pull ring, and the fixing plate is provided with a second pull ring.

10. The automatic disassembly and assembly equipment for a generator rotor according to claim 1, characterized in that, The rotor fixing mechanism is arranged as a clamp, and the clamp has a through hole for the rotor to pass through.

Images