Gap measurement method and device and electronic equipment

By using a laser tracker and the least squares method to fit the contact plane, the measurement of the gap between the inner and outer stators of the generator is simplified, solving the problems of time-consuming measurement and safety risks, and achieving efficient and safe gap measurement.

CN120593643APending Publication Date: 2025-09-05CHINA GENERAL NUCLEAR POWER OPERATION
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Patent Information

Application Number
CN202510694367.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

In the prior art, measuring the gap between the inner and outer stators of a generator is time-consuming and the process is cumbersome and complicated, which increases the labor intensity of the workers and poses safety risks.

Method used

A laser tracker is used to measure the spatial position of the corner vertex of the outer stator spring plate. The contact plane is fitted by the least squares method. Combined with the data of the gap between some spring plates, the gap between other spring plates is calculated to simplify the measurement process.

Benefits of technology

Shorten measurement time, reduce the risk of internal stator tilt and falling accidents, and improve safety and work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of generators, and provides a gap measurement method and device and electronic equipment, the method is used for measuring gaps between a plurality of spring plates arranged on an outer stator of a generator and an inner stator, and the method comprises the steps: collecting the spatial position coordinates of each angular vertex of each spring plate installed on the outer stator; measuring data of a gap between a target spring plate and the inner stator in each orientation of the outer stator is obtained, and the outer stator is divided into a plurality of orientations according to spatial position characteristics; fitting a contact plane of the target spring plate and the inner stator according to the spatial position coordinates of the vertexes of the angles of the target spring plate and the measurement data of the gap between the target spring plate and the inner stator; and according to the distance from each angular vertex of the other spring plates in each direction to the contact plane, gap measurement data between each angular vertex of the corresponding other spring plates and the inner stator are fed back, and the other spring plates are spring plates except the target spring plate.
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Description

Technical Field

[0001] The present application belongs to the technical field of generators, and more specifically, relates to a gap measurement method, device and electronic equipment. Background Art

[0002] Currently, when replacing or installing the inner stator in a generator, the vibration damping structure between the inner and outer stators contains a large number of spring plates. Any deviations in the inner stator installation, such as tilt or offset, can affect the generator's normal operation. Therefore, on-site surveying and installation are often performed, with professional staff using plugs to measure the gap between the spring plates and the inner stator.

[0003] However, this method is extremely time-consuming and complex, with heavy workloads and increased labor intensity. Furthermore, during the measurement process, the inner stator requires long periods of temporary support from a jack. This can easily lead to serious accidents such as the inner stator tilting or falling, possibly due to unexpected conditions such as jack failure or displacement of the support point. This poses a significant safety risk.

[0004] Therefore, it is urgent to develop a new solution for measuring the gap between the spring plate and the inner stator to shorten the measurement time and reduce the risk of long-term support of the inner stator. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a gap measurement method, device and electronic equipment, aiming to solve the technical problems of the existing solution for measuring the gap between the spring plate and the inner stator, which is time-consuming and has a cumbersome and complicated process.

[0006] To achieve the above objectives, according to a first aspect of the present application, a gap measurement method is provided for measuring the gap between a plurality of spring plates provided on an outer stator of a generator and an inner stator, the method comprising:

[0007] Collecting the spatial position coordinates of each corner vertex of each spring plate installed on the outer stator;

[0008] Acquire gap measurement data between the target spring plate and the inner stator in each orientation of the outer stator, wherein the outer stator is divided into a plurality of orientations according to spatial position characteristics;

[0009] According to the spatial position coordinates of each corner vertex of the target spring plate and the gap measurement data between the target spring plate and the inner stator, the contact plane between the target spring plate and the inner stator is fitted;

[0010] According to the distance from each corner vertex of other spring plates in each orientation to the contact plane, the gap measurement data between each corner vertex of the corresponding other spring plates and the inner stator are fed back, wherein the other spring plates are spring plates other than the target spring plate.

[0011] In one possible implementation, collecting the spatial position coordinates of each corner vertex of each spring plate installed on the outer stator includes:

[0012] A laser tracker installed inside the outer stator is used to emit a laser beam to the target at each corner vertex of each spring plate; wherein each corner vertex is fixed with at least one target seat, on which a target is installed;

[0013] A laser tracker is used to receive the reflected light beams from the targets at each corner vertex;

[0014] Determine the time interval between the laser tracker emitting a laser beam and receiving a reflected beam;

[0015] The spatial position coordinates of each corner vertex relative to the laser tracker are determined according to the time interval.

[0016] In one possible implementation, the target spring plate includes: a first spring plate and a last spring plate, and obtaining gap measurement data between the target spring plate and the inner stator in each orientation of the outer stator includes:

[0017] Obtaining a first measured gap between a first spring plate and the inner stator in each orientation of the outer stator, and a second measured gap between a last spring plate and the inner stator in each orientation of the outer stator;

[0018] The gap measurement data between the target spring plate and the inner stator in each orientation of the outer stator is determined based on the first measurement gap and the second measurement gap.

[0019] In one possible implementation, the contact plane between the target spring plate and the inner stator is fitted based on the spatial position coordinates of each corner vertex of the target spring plate and the gap measurement data between the target spring plate and the inner stator, including:

[0020] Based on the principle of least squares, the spatial position coordinates of each corner vertex of the target spring plate and the gap measurement data between the target spring plate and the inner stator are iteratively calculated until the best fitting plane parameter value is obtained that minimizes the sum of the squares of the distances between each corner vertex of the target spring plate and the spatial plane.

[0021] The contact plane equation between the target spring plate and the inner stator is determined according to the best fitting plane parameter value and the general equation of the space plane, wherein the contact plane equation is used to characterize the contact plane between the target spring plate and the inner stator.

[0022] In one possible implementation, based on the distance from each corner vertex of each spring plate in each orientation to the contact plane, feedback of the gap measurement data between each corner vertex of the corresponding other spring plate and the inner stator includes:

[0023] Using the mathematical formula of the distance from a point to a plane, calculate the distance from each corner vertex of the other spring plates in each orientation to the contact plane;

[0024] The distances from each corner vertex of the other spring plates to the contact plane are displayed on the display interface as the corresponding gap measurement data between each corner vertex of the other spring plates and the inner stator.

[0025] In one possible implementation, collecting the spatial position coordinates of each corner vertex of each spring plate installed on the outer stator includes:

[0026] Obtaining a predetermined acquisition sequence, wherein the predetermined acquisition sequence is at least one of the acquisition sequence permutations and combinations that start from any orientation of the outer stator and switch orientations in different horizontal and vertical directions;

[0027] According to a predetermined acquisition sequence, the spatial position coordinates of each corner vertex of each spring plate in each orientation are acquired in sequence.

[0028] According to a second aspect of the present application, a gap measuring device is provided for measuring the gap between a plurality of spring plates provided on an outer stator of a generator and an inner stator, the device comprising:

[0029] A collection unit, used to collect the spatial position coordinates of each corner vertex of each spring plate installed on the outer stator;

[0030] an acquisition unit, configured to acquire gap measurement data between the target spring plate and the inner stator in each orientation of the outer stator, wherein the outer stator is divided into a plurality of orientations according to spatial position characteristics;

[0031] A fitting unit is used to fit the contact plane between the target spring plate and the inner stator according to the spatial position coordinates of each corner vertex of the target spring plate and the gap measurement data between the target spring plate and the inner stator;

[0032] The feedback unit is used to feedback the gap measurement data between each corner vertex of the other spring plates and the inner stator according to the distance from each corner vertex of the other spring plates in each orientation to the contact plane, wherein the other spring plates are spring plates other than the target spring plate.

[0033] In a possible implementation, the collection unit is further configured to:

[0034] A laser tracker installed inside the outer stator is used to emit a laser beam to the target at each corner vertex of each spring plate; wherein each corner vertex is fixed with at least one target seat, on which a target is installed;

[0035] A laser tracker is used to receive the reflected light beams from the targets at each corner vertex;

[0036] Determine the time interval between the laser tracker emitting a laser beam and receiving a reflected beam;

[0037] The spatial position coordinates of each corner vertex relative to the laser tracker are determined according to the time interval.

[0038] In a possible implementation, the target spring plate includes: a first spring plate and a last spring plate, and the acquisition unit is further configured to:

[0039] Obtaining a first measured gap between a first spring plate and the inner stator in each orientation of the outer stator, and a second measured gap between a last spring plate and the inner stator in each orientation of the outer stator;

[0040] The gap measurement data between the target spring plate and the inner stator in each orientation of the outer stator is determined based on the first measurement gap and the second measurement gap.

[0041] In a possible implementation, the fitting unit is further configured to:

[0042] Based on the principle of least squares, the spatial position coordinates of each corner vertex of the target spring plate and the gap measurement data between the target spring plate and the inner stator are iteratively calculated until the best fitting plane parameter value is obtained that minimizes the sum of the squares of the distances between each corner vertex of the target spring plate and the spatial plane.

[0043] The contact plane equation between the target spring plate and the inner stator is determined according to the best fitting plane parameter value and the general equation of the space plane, wherein the contact plane equation is used to characterize the contact plane between the target spring plate and the inner stator.

[0044] In one possible implementation, the feedback unit is further configured to:

[0045] Using the mathematical formula of the distance from a point to a plane, calculate the distance from each corner vertex of the other spring plates in each orientation to the contact plane;

[0046] The distances from each corner vertex of the other spring plates to the contact plane are displayed on the display interface as the corresponding gap measurement data between each corner vertex of the other spring plates and the inner stator.

[0047] In a possible implementation, the collection unit is further configured to:

[0048] Obtaining a predetermined acquisition sequence, wherein the predetermined acquisition sequence is at least one of the acquisition sequence arrangements and combinations that start from any orientation of the outer stator and switch orientations in different horizontal and vertical directions;

[0049] According to a predetermined acquisition sequence, the spatial position coordinates of each corner vertex of each spring plate in each orientation are acquired in sequence.

[0050] The second aspect and any implementation of the second aspect correspond to the first aspect and any implementation of the first aspect, respectively. The technical effects corresponding to the second aspect and any implementation of the second aspect can be referred to the technical effects corresponding to the first aspect and any implementation of the first aspect, and will not be repeated here.

[0051] According to a third aspect of the present application, an electronic device is provided, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the electronic device implements any one of the methods described.

[0052] According to a fourth aspect of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method as described in any one of the above is implemented.

[0053] According to a fifth aspect of the present application, a computer program product is provided. When the computer program product is run on an electronic device, the electronic device executes any one of the methods described in the first aspect.

[0054] It can be understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0055] An embodiment of the present application provides a gap measurement method for measuring the gap between a plurality of spring plates provided on an outer stator of a generator and an inner stator, the method comprising: collecting the spatial position coordinates of each angular vertex of each spring plate installed on the outer stator; obtaining gap measurement data between a target spring plate and the inner stator in each orientation of the outer stator, wherein the outer stator is divided into multiple orientations based on spatial position characteristics; fitting a contact plane between the target spring plate and the inner stator based on the spatial position coordinates of each angular vertex of the target spring plate and the gap measurement data between the target spring plate and the inner stator; and feeding back the gap measurement data between each angular vertex of the other spring plates and the inner stator based on the distance from each angular vertex of the other spring plates in each orientation to the contact plane, wherein the other spring plates are spring plates other than the target spring plate.

[0056] The method of the present application is exemplified by selecting the gap measurement data between the key target spring plates (such as the head and tail spring plates in each orientation) and the inner stator in the measurement part, and then combining the spatial position coordinate information of each corner vertex of all spring plates, using mathematical fitting to fit the contact plane between the target spring plate and the inner stator, and then displaying and feeding back the gap measurement data between other spring plates and the inner stator according to the distance from each corner vertex of other spring plates in each orientation to the contact plane. Since there is no need to directly measure the gaps between all spring plates and the inner stator, the number of gaps between the spring plates and the inner stator that actually need to be measured can be reduced, thereby simplifying the measurement process, saving a lot of measurement time, and avoiding the problems of cumbersome and time-consuming operations caused by a large amount of manual measurement.

[0057] Furthermore, in traditional measurement methods, due to the long measurement time, the inner stator needs to be temporarily supported by a jack for a long time, which poses the risk of serious accidents such as the inner stator tilting or falling due to jack failure or support point displacement. This application example shortens the gap measurement time and accordingly reduces the time the inner stator relies on the jack for temporary support, thereby effectively reducing the risk of accidents such as inner stator tilting and falling, and improving the safety during the installation or replacement of the inner stator. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0059] Figure 1 1 is a flow chart of a gap measurement method provided in an embodiment of the present application;

[0060] Figure 2 This is a flow chart of an optional gap measurement method provided in an embodiment of the present application;

[0061] Figure 3 This is a flow chart of an optional gap measurement method provided in an embodiment of the present application;

[0062] Figure 4 This is a flow chart of an optional gap measurement method provided in an embodiment of the present application;

[0063] Figure 5 This is a flow chart of an optional gap measurement method provided in an embodiment of the present application;

[0064] Figure 6 1 is a schematic structural diagram of a gap measurement device provided in an embodiment of the present application;

[0065] Figure 7 This is a structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0066] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0067] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof.

[0068] It should also be understood that in the description of this application, unless otherwise specified, the “ / ” used in the specification of this application and the appended claims indicates that the objects associated with each other are in an “or” relationship. For example, A / B can represent A or B. The “and / or” in this application is merely a description of the association relationship of the associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In addition, in the description of this application, unless otherwise specified, “multiple” means two or more than two. “At least one of the following items” or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or plural.

[0069] In addition, to facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity or execution order, but are only used to distinguish the description. In addition, words such as "first" and "second" do not necessarily define differences, nor should they be understood to indicate or imply relative importance.

[0070] As used in this specification and the appended claims, the term "if" can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0071] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0072] Currently, when replacing or installing the inner stator in a generator, the vibration damping structure between the inner and outer stators contains a large number of spring plates. Any deviations in the inner stator installation, such as tilt or offset, can affect the generator's normal operation. Therefore, on-site surveying and installation are often performed, with professional staff using plugs to measure the gap between the spring plates and the inner stator.

[0073] However, this method is extremely time-consuming and complex, with heavy workloads and increased labor intensity. Furthermore, during the measurement process, the inner stator requires long periods of temporary support from a jack. This can easily lead to serious accidents such as the inner stator tilting or falling, possibly due to unexpected conditions such as jack failure or displacement of the support point. This poses a significant safety risk.

[0074] In order to solve the above technical problems, this application example provides an example of a gap measurement method, please refer to Figure 1 As shown, Figure 1 The following is a schematic flow chart of a gap measurement method provided by this application. By way of example and not limitation, this method can be applied to or run in electronic devices such as detection terminals to measure the gap between multiple spring plates provided on the outer stator of a generator and the inner stator. The method includes:

[0075] S101 , collecting the spatial position coordinates of each corner vertex of each spring plate installed on the outer stator.

[0076] S102 , obtaining gap measurement data between a target spring plate and an inner stator in each orientation of the outer stator, wherein the outer stator is divided into multiple orientations according to spatial position characteristics.

[0077] S103 , fitting a contact plane between the target spring plate and the inner stator according to the spatial position coordinates of each corner vertex of the target spring plate and the measurement data of the gap between the target spring plate and the inner stator.

[0078] S104 , based on the distances from each corner vertex of the other spring plates in each orientation to the contact plane, feedback is provided of the gap measurement data between each corner vertex of the other spring plates and the inner stator, wherein the other spring plates are spring plates other than the target spring plate.

[0079] Optionally, the generator in the example of the present application is an inner and outer stator structure generator, where the inner stator is located in the center part of the generator, and the outer stator surrounds the inner stator. There is a certain space between the inner and outer stators, and shock-absorbing structures such as spring plates can be arranged in this space to reduce the vibration and noise generated during the operation of the generator and improve the stability and reliability of the generator.

[0080] The following is an explanation of how the gap measurement method is implemented, as well as an explanation of the corresponding technical effects:

[0081] In some alternative examples, a high-precision laser device, such as a laser tracker, can be placed inside the outer stator of the generator. The laser tracker can emit a laser beam and measure information such as distance and angle by receiving the reflected laser beam.

[0082] For each spring plate, specially designed targets (e.g., highly reflective spheres) are mounted at each corner of the plate. A laser tracker then shines a laser beam onto these targets. Based on the time difference between the emitted and received laser beams, the laser tracker calculates the spatial coordinates of the targets, thereby obtaining the spatial coordinates of each corner of the plate (e.g., coordinates in the x, y, and z directions).

[0083] In an optional example, each corner point of all spring plates may be measured and recorded in sequence according to a predetermined acquisition sequence to ensure that the spatial position coordinates of each corner point of all spring plates can be obtained.

[0084] Alternatively, in some examples, the outer stator can be pre-divided into multiple positions based on its spatial positional characteristics, such as up, down, left, and right. A target spring plate is then determined for each position. For example, the first and last spring plates in each position can be selected as target spring plates.

[0085] Specifically, the gap measurement data between the target spring plate and the inner stator at each orientation is obtained by manually measuring the gap between the target spring plate and the inner stator using a suitable measuring tool, such as a feeler gauge. For example, a feeler gauge is inserted into the gap between the target spring plate and the inner stator, and the size of the gap is determined based on the thickness of the feeler gauge. The gap measurement data between each target spring plate and the inner stator is then recorded in detail in a database or storage space. In this example, the gap measurement data between the target spring plate and the inner stator at each orientation can then be retrieved from the database or storage space.

[0086] Afterwards, the spatial position coordinates of each corner vertex of the target spring plate and the corresponding gap measurement data obtained previously can be used with a mathematical fitting algorithm, such as the least squares method, to calculate the sum of the squares of the distances from each corner vertex of the target spring plate to the fitting plane (contact plane) to find an optimal plane equation such as Ax+By+Cz+D=0, so that the contact plane can represent the contact situation between the target spring plate and the inner stator as accurately as possible, and finally obtain the fitted contact plane by calculating and adjusting the parameters A, B, C, and D of the plane equation.

[0087] It should be understood that the basic idea of ​​the least square method is to find an optimal plane equation by minimizing the objective function (ie, the sum of the squares of the distances from each corner vertex of the target spring plate to the fitting plane (contact plane)).

[0088] For the spring plates other than the target spring plate in each orientation, the spatial coordinates of the corner vertices of the other spring plates are known. If the spatial coordinates of the set point are x0, y0, z0, the plane equation is A x +B y +C z +D=0, then the distance formula from the point to the plane is

[0089] Substitute the spatial position coordinates of each corner vertex of the other spring plates into the above-mentioned point-to-plane distance formula to calculate the distance from each corner vertex of the other spring plates to the fitted contact plane, and display the distance on the display interface as the gap measurement data between each corner vertex of the corresponding other spring plates and the inner stator, that is, the gap measurement data between the other spring plates and the inner stator. In addition, if a gasket is provided on the spring plate, it can be understood as the gap measurement data between the gasket of the other spring plate and the inner stator (for example, in mm).

[0090] The method of the present application is exemplified by selecting the gap measurement data between the key target spring plates (such as the head and tail spring plates in each orientation) and the inner stator in the measurement part, and then combining the spatial position coordinate information of each corner vertex of all spring plates, using mathematical fitting to fit the contact plane between the target spring plate and the inner stator, and then displaying and feeding back the gap measurement data between other spring plates and the inner stator according to the distance from each corner vertex of other spring plates in each orientation to the contact plane. Since there is no need to directly measure the gaps between all spring plates and the inner stator, the number of gaps between the spring plates and the inner stator that actually need to be measured can be reduced, thereby simplifying the measurement process, saving a lot of measurement time, and avoiding the problems of cumbersome and time-consuming operations caused by a large amount of manual measurement.

[0091] Furthermore, in traditional measurement methods, due to the long measurement time, the inner stator needs to be temporarily supported by a jack for a long time, which poses the risk of serious accidents such as the inner stator tilting or falling due to jack failure or support point displacement. This application example shortens the gap measurement time and accordingly reduces the time the inner stator relies on the jack for temporary support, thereby effectively reducing the risk of accidents such as inner stator tilting and falling, and improving the safety during the installation or replacement of the inner stator.

[0092] The following analyzes the optional implementation methods of the multiple steps of the above-mentioned gap measurement method and the technical effects produced in solving the existing problems:

[0093] For a possible implementation, please refer to Figure 2 As shown, Figure 2 A schematic flow chart of an optional gap measurement method provided by the present application is shown. S101: collecting the spatial position coordinates of each corner vertex of each spring plate installed on the outer stator, including:

[0094] S201, using a laser tracker installed inside the outer stator to emit a laser beam to the target at each corner vertex of each spring plate; wherein each corner vertex is fixed with at least one target seat, and a target is installed on the target seat.

[0095] S202, using a laser tracker to receive reflected light beams from the targets at each corner vertex.

[0096] S203, determining the time interval between the laser tracker emitting the laser beam and receiving the reflected light beam.

[0097] S204: Determine the spatial position coordinates of each corner vertex relative to the laser tracker according to the time interval.

[0098] Optionally, in one example, a laser tracker may be pre-installed inside the outer stator of the generator. The laser tracker transmits a laser beam and receives a reflected laser beam, and performs precise measurements based on the propagation characteristics of the laser.

[0099] In some examples, at least one target seat can be pre-fixed at each corner vertex of each spring plate, and a target (e.g., a target ball) can be installed on the target seat. The target is reflective and provides a target point for the measurement of the laser tracker. The position of the target directly corresponds to the position of each corner vertex of the spring plate. By reflecting the laser beam emitted by the laser tracker, the position information of the spring plate can be accurately reflected, ensuring the accuracy and stability of the measurement.

[0100] In one example, based on the principle of laser reflection, a laser tracker emits a laser beam to a target at each corner vertex of each spring plate. The target reflects the laser beam back to the laser tracker, which then receives the reflected beam. By emitting the laser beam and receiving the reflected beam, the laser tracker establishes a signal transmission path for measurement. The laser tracker records the time interval between emitting the laser beam and receiving the reflected beam, and can calculate the distance from the laser tracker to the target using the formula: distance equals speed multiplied by time.

[0101] Since the propagation speed of laser in vacuum is a known constant value (approximately 299,792,458 meters per second, usually represented by the symbol c. Based on the measured time interval and the propagation speed of the laser, the distance from the laser tracker to the target at each corner vertex can be calculated, that is, the spatial position coordinates of each corner vertex relative to the laser tracker (including the coordinate values ​​in the three directions of x, y, and z) can be determined.

[0102] Compared to the traditional method of performing complex and time-consuming measurements on the spring plate, the above-mentioned method steps, using a laser tracker and a target measurement method, can quickly obtain the spatial position coordinates of each corner point of the spring plate. The time required to measure the spatial position coordinates of each corner point is shortened, thereby speeding up the entire measurement process and helping to shorten the time required to replace or install the inner stator. In addition, this measurement method has a relatively high degree of automation. Workers only need to perform simple operations such as installing the laser tracker and fixing the target holder. There is no need for a large amount of tedious manual measurement and data recording work. The laser tracker can automatically record and calculate the measurement data, reducing the workload and complexity of the work of the workers and reducing the labor intensity of the workers.

[0103] Furthermore, by quickly acquiring the spatial coordinates of each corner of the spring plate, the entire measurement process is shortened. During stator replacement or installation, this shortened measurement time means less time spent temporarily supporting the stator with the jack. This reduces the risk of serious accidents such as stator tilting or falling due to unexpected conditions such as jack failure or support point displacement, thereby improving operational safety.

[0104] In a possible implementation, the target spring plate includes: the first spring plate and the last spring plate. Figure 3 As shown, Figure 3 A schematic flow chart of an optional gap measurement method provided by the present application is shown. S102: obtaining gap measurement data between a target spring plate and an inner stator in each orientation of the outer stator, including:

[0105] S301 : Acquire a first measured gap between the first spring plate and the inner stator in each orientation of the outer stator, and a second measured gap between the last spring plate and the inner stator in each orientation of the outer stator.

[0106] S302 : Determine gap measurement data between the target spring plate and the inner stator in each orientation of the outer stator based on the first measurement gap and the second measurement gap.

[0107] By selecting the spring plates at each end (the first and last) of each orientation as target spring plates, the subsequent calculation of the gaps between other spring plates and the inner stator through fitting and other methods can better reflect the relative positional relationship between the spring plates in that orientation and the inner stator. In some examples, the first and last spring plates in each orientation of the outer stator can be used as target spring plates.

[0108] In some examples, the first spring plate and the last spring plate in each orientation can be pre-marked by the staff involved in installing or replacing the inner stator. Therefore, the staff only needs to accurately identify the specific positions of the first spring plate and the last spring plate in each orientation and mark them (for example, setting a target on each corner vertex of the first spring plate and the last spring plate in each orientation, etc.).

[0109] Specifically, a measuring device can use a suitable measuring tool, such as a feeler gauge or a dial indicator, to measure the gap between the first spring plate and the inner stator in each orientation. The measuring tool is accurately aligned between the gap between the first spring plate and the inner stator, and the gap value displayed by the measuring tool is read to obtain the first measured gap. Of course, a worker can also use a measuring tool, such as a feeler gauge or a dial indicator, to measure the gap between the first spring plate and the inner stator in each orientation.

[0110] It should be understood that during the measurement process, it is necessary to ensure that the measuring tools are used correctly to ensure the accuracy of the measured data. For example, when using a feeler gauge, it is important to select a feeler gauge of appropriate thickness to ensure that the feeler gauge can be inserted tightly into the gap without excessive deformation.

[0111] Similarly, use the same or similar measuring tool as described above to measure the gap between the last spring plate and the inner stator in each orientation. Following the same procedures as for measuring the first measured gap, place the measuring tool between the gap between the last spring plate and the inner stator and read the gap value displayed by the measuring tool to obtain the second measured gap.

[0112] Afterwards, the first and second measured gaps are simply recorded and organized, and these two measured values ​​are used as the gap measurement data between the target spring plate and the inner stator at that location. It should be understood that the first and second measured gaps reflect the actual gaps between the two end spring plates and the inner stator at that location, allowing for a relatively accurate calculation of the gaps between the other spring plates and the inner stator, ensuring the validity of the measurement data and the reliability of the measurement results.

[0113] Compared to the traditional method of measuring the gap of each spring plate separately, the example of this application only measures the gap between the first spring plate and the last spring plate in each direction and the inner stator, rather than measuring the gap of all spring plates. This method can significantly shorten the time required to measure the gap data, thereby speeding up the measurement process and further shortening the time to install or replace the stator. In addition, the staff does not need to perform tedious gap measurement operations on each spring plate, which reduces the labor intensity of the staff and improves work efficiency. In addition, the shortening of the time to measure the gap data means that the time that the inner stator relies on the jack for temporary support is reduced. The shortening of the temporary support time of the inner stator can reduce the possibility of serious accidents such as tilting or falling of the inner stator due to factors such as jack failure and displacement of the support point.

[0114] For a possible implementation, please refer to Figure 4 As shown, Figure 4 A schematic flow chart of an optional gap measurement method provided by the present application is shown. S103, based on the spatial position coordinates of each corner vertex of the target spring plate and the gap measurement data between the target spring plate and the inner stator, the contact plane between the target spring plate and the inner stator is fitted, including:

[0115] S401, based on the principle of least squares method, iteratively calculate the spatial position coordinates of each corner vertex of the target spring plate and the gap measurement data between the target spring plate and the inner stator until the best fitting plane parameter value is obtained that minimizes the sum of the squares of the distances between each corner vertex of the target spring plate and the spatial plane.

[0116] S402 : Determine a contact plane equation between the target spring plate and the inner stator according to the best fitting plane parameter value and the general equation of the space plane, wherein the contact plane equation is used to characterize the contact plane between the target spring plate and the inner stator.

[0117] It should be understood that the least squares method is a mathematical optimization method that seeks the best function match for the data by minimizing the sum of squares of errors. In the gap measurement scenario provided in the example of this application, the spatial position coordinates (including x, y, z coordinate information) of each corner vertex of the target spring plate (i.e., the first and last spring plates in each orientation) and the gap measurement data between the target spring plate and the inner stator are iteratively calculated, and the spatial plane equation (generally A) is continuously adjusted based on the least squares method. x +B y +C z +D=0) in the parameters A, B, C, D.

[0118] Afterwards, for each set of target spring plates, the spatial position coordinates x of each vertex i ,y i ,z i , calculate the angle vertex to the current plane (A x +B y +C z +D=0) Then calculate the sum of the squares of the distances from all corner vertices to the plane (n is the total number of corner vertices of each target spring plate.) By continuously adjusting parameters A, B, C, and D, S is gradually reduced, and the calculation continues until certain convergence conditions are met. For example, the change in the sum of squared distances S is less than a preset minimum value, or the preset maximum number of iterations is reached. The parameter values ​​obtained at this time are the best-fitting plane parameter values ​​that minimize the sum of squared distances between each corner vertex of the target spring plate and the spatial plane.

[0119] After obtaining the best fitting plane parameter value, substitute the best fitting plane parameter value into the general equation A of the space plane x +B y +C z +D=0, thereby determining the contact plane equation between the target spring plate and the inner stator. The contact plane equation is used to describe the position and direction of the contact plane between the target spring plate (specifically, the gasket of the target spring plate) and the inner stator in space, providing a reference plane for subsequent calculations of the gaps between other spring plates and the inner stator.

[0120] By using the least-squares method to perform plane fitting, leveraging the spatial coordinates of the target spring plate's corners and clearance measurement data, a plane that best represents the actual contact situation can be found. Compared to simpler estimations or assumptions, this data-based fitting approach more accurately reflects the contact relationship between the target spring plate and the inner stator, thereby improving the accuracy of gap measurements between other spring plates and the inner stator. The gaps between the corners of the other spring plates and the inner stator are then calculated based on the fitted contact plane. Therefore, a more accurate fitting plane means more precise gap measurements, facilitating more precise matching of backing plates for machining spring plates and other operations.

[0121] Compared to traditional methods that require complex measurement and analysis of each spring plate to determine its relationship with the inner stator, this method, by fitting the contact plane between a target (representative) spring plate and the inner stator, can quickly infer the gaps between other spring plates and the inner stator, significantly reducing the measurement and analysis workload. Furthermore, shortening measurement time reduces the temporary support time of the inner stator, reducing the risk of serious accidents such as inner stator tilting or falling due to unexpected situations such as jack failure and support point displacement, thereby improving safety during the replacement or installation of the inner stator.

[0122] Since there is no need to perform complex measurement and analysis on each spring plate, the staff only needs to complete basic work such as gap measurement of the target spring plate and collection of vertex coordinates of all spring plates. Subsequent plane fitting and gap measurement between other spring plates and the inner stator can be automatically completed using mathematical methods and calculation tools.

[0123] For a possible implementation, please refer to Figure 5 As shown, Figure 5 A schematic flow chart of an optional gap measurement method provided by the present application is shown. S104, based on the distance from each corner vertex of each other spring plate in each orientation to the contact plane, feedback is provided of the gap measurement data between each corner vertex of the corresponding other spring plate and the inner stator, including:

[0124] S501, using a mathematical formula for point-to-plane distance, calculate the distance from each corner vertex of other spring plates in each orientation to the contact plane.

[0125] S502: Display the distances from each corner vertex of the other spring plates to the contact plane as corresponding gap measurement data between each corner vertex of the other spring plates and the inner stator on the display interface.

[0126] In some examples, in a rectangular coordinate system, if the spatial position coordinates of a point are x0, y0, z0, and the plane equation is A x +B y +C z+D=0, then the distance formula from the point to the plane is

[0127] In this measurement method, the contact plane equation between the target spring plate and the inner stator has been fitted through the previous steps, that is, the parameter values ​​of parameters A, B, C, and D in the plane equation have been determined. For the spring plates other than the target spring plate (the first spring plate and the last spring plate) in each orientation, the spatial position coordinates of the various corner vertices of the other spring plates are known. The spatial position coordinates (x0, y0, z0) of the various corner vertices of the spring plates are substituted into the plane distance formula, and the distance d from each corner vertex to the contact plane is calculated in turn. The calculated distance d from each corner vertex of the other spring plates to the contact plane is directly used as the gap measurement data between these corner vertices and the inner stator.

[0128] It should be noted that the above example is based on the premise that the fitted contact plane can represent the contact state between the target spring plate and the inner stator. It is assumed that the distance from each corner vertex of the other spring plates to the contact plane is approximately equal to the gap between each corner vertex and the inner stator. Therefore, the gap measurement data between the other spring plates and the inner stator can be quickly determined to complete the gap measurement process.

[0129] The point-to-plane distance formula is used to calculate the gap between each corner of the other spring plates and the inner stator, eliminating the tedious process of directly measuring the gap for each spring plate. The gap measurement data for each spring plate and the inner stator can be quickly determined based on the coordinates of each corner of the existing spring plate and the fitted contact plane equation. This reduces measurement time and workload, improves measurement efficiency, and reduces the time the inner stator needs to be temporarily supported by the jack.

[0130] Because the contact plane is obtained by least-squares fitting the target spring plate's vertex coordinates and gap measurement data, it effectively reflects the actual contact between the target spring plate and the inner stator. Calculating the gap between each vertex of the other spring plates and the inner stator based on this fitted plane yields relatively accurate gap measurement data, meeting the precision requirements of actual operations.

[0131] In a possible implementation, the spatial position coordinates of each corner vertex of each spring plate installed on the outer stator can be collected, which can also be achieved by the following method steps:

[0132] A predetermined acquisition sequence is obtained, wherein the predetermined acquisition sequence is at least one of acquisition sequence arrangements and combinations that takes any orientation of the outer stator as a starting point and switches orientations in different horizontal and vertical directions.

[0133] According to a predetermined acquisition sequence, the spatial position coordinates of each corner vertex of each spring plate in each orientation are acquired in sequence.

[0134] In some examples, the outer stator is pre-divided into multiple orientations (e.g., up, down, left, and right) based on spatial location characteristics. First, one can select any orientation from these multiple orientations as a starting point, such as the up orientation. Then, various permutations and combinations of orientation switching in different horizontal and vertical directions can be considered.

[0135] It should be understood that horizontal switching can be from left to right or from right to left, and vertical switching can be from top to bottom or from bottom to top. By combining these directional switching, various acquisition orders can be obtained. One possible acquisition order is: top position (starting point) → left position (horizontal switching) → bottom position (vertical switching) → right position (horizontal switching).

[0136] It should be understood that in the example of this application, the staff can determine one or more collection sequences as the predetermined collection sequence based on actual conditions (such as the convenience of measurement, the layout of the equipment, etc.), and the example of this application is not limited to one or more predetermined collection sequences.

[0137] After the predetermined acquisition sequence is determined, the spatial position coordinates of each corner vertex of each spring plate are collected. In one example, assuming that the predetermined acquisition sequence is to first collect the spatial position coordinates of each corner vertex of the spring plate in the upper position, for each spring plate in the upper position, according to the aforementioned method (such as using a laser tracker installed inside the outer stator to measure the coordinates of the target installed on the target holder at each corner vertex of the spring plate by emitting and receiving laser beams), the spatial position coordinates of each corner vertex of each spring plate are collected in sequence. After collecting the spatial position coordinates of each corner vertex of a spring plate, the laser tracker automatically moves to the next spring plate in the upper position according to the driving path and continues collecting until the spatial position coordinates of each corner vertex of all spring plates in the upper position are collected.

[0138] After completing the acquisition of the top position, switch to the next position (such as the left position) according to the predetermined acquisition order and repeat the above operation to collect the coordinates of the corner points of all spring plates in this position. In this way, the spatial position coordinates of each corner point of the spring plate in each position are collected in sequence until the spatial position coordinates of each corner point of the spring plate in all positions are collected.

[0139] By selecting any position of the external stator as the starting point and arranging multiple acquisition sequences in different horizontal and vertical directions, the most suitable acquisition sequence can be selected based on the actual measurement environment and equipment layout, thereby improving measurement efficiency. For example, if the laser tracker is installed closer to a certain position of the external stator, that position can be selected as the starting point to reduce the movement and adjustment of the laser tracker and improve measurement convenience.

[0140] Furthermore, a predefined acquisition sequence provides operational guidance for measurement work, avoiding potential confusion and duplicate measurements during the acquisition process, optimizing the measurement process and reducing unnecessary time. For example, sequentially acquiring the spatial coordinates of each corner of a spring plate in each orientation in a predetermined order ensures that each spring plate is accurately measured, eliminating omissions and duplicate measurements, thereby improving measurement accuracy and efficiency.

[0141] Furthermore, the optimized measurement process and improved efficiency directly lead to a reduction in measurement time. By enabling faster and more accurate acquisition of the spatial coordinates of each corner of the spring plate, the entire measurement process takes less time, which in turn reduces the time the inner stator requires temporary support on the jack.

[0142] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0143] Corresponding to the gap measurement method described in the above embodiment, Figure 6 This is a schematic diagram of the structure of a gap measurement device provided by an embodiment of the present application. The device can be implemented as part or all of a computer device by software, hardware, or a combination of both. The computer device can be Figure 7 Electronic devices shown.

[0144] Reference Figure 6 The gap measuring device is used to measure the gap between a plurality of spring plates provided on the outer stator of the generator and the inner stator, and the device comprises:

[0145] The acquisition unit 601 is used to acquire the spatial position coordinates of each corner vertex of each spring plate installed on the outer stator.

[0146] The acquisition unit 602 is configured to acquire gap measurement data between the target spring plate and the inner stator in each orientation of the outer stator, wherein the outer stator is divided into multiple orientations according to spatial position characteristics.

[0147] The fitting unit 603 is used to fit the contact plane between the target spring plate and the inner stator according to the spatial position coordinates of each corner point of the target spring plate and the gap measurement data between the target spring plate and the inner stator.

[0148] The feedback unit 604 is used to feedback the gap measurement data between each corner vertex of the other spring plates and the inner stator according to the distance from each corner vertex of the other spring plates in each orientation to the contact plane, wherein the other spring plates are spring plates other than the target spring plate.

[0149] In a possible implementation, the collection unit is further configured to:

[0150] A laser tracker installed inside the outer stator is used to emit a laser beam to the targets at each corner vertex of each spring plate; wherein each corner vertex is fixed with at least one target seat, on which a target is installed.

[0151] A laser tracker is used to receive the reflected light beam from the target at each corner vertex.

[0152] Determines the time interval between when the laser tracker transmits the laser beam and when it receives the reflected beam.

[0153] The spatial position coordinates of each corner vertex relative to the laser tracker are determined according to the time interval.

[0154] In a possible implementation, the target spring plate includes: a first spring plate and a last spring plate, and the acquisition unit is further configured to:

[0155] A first measured gap between the first spring plate and the inner stator in each orientation of the outer stator and a second measured gap between the last spring plate and the inner stator in each orientation of the outer stator are obtained.

[0156] The gap measurement data between the target spring plate and the inner stator in each orientation of the outer stator is determined based on the first measurement gap and the second measurement gap.

[0157] In a possible implementation, the fitting unit is further configured to:

[0158] Based on the principle of least squares method, the spatial position coordinates of each corner vertex of the target spring plate and the gap measurement data between the target spring plate and the inner stator are iteratively calculated until the best fitting plane parameter value is obtained that minimizes the sum of the squares of the distances between each corner vertex of the target spring plate and the spatial plane.

[0159] The contact plane equation between the target spring plate and the inner stator is determined according to the best fitting plane parameter value and the general equation of the space plane, wherein the contact plane equation is used to characterize the contact plane between the target spring plate and the inner stator.

[0160] In one possible implementation, the feedback unit is further configured to:

[0161] The mathematical formula of point-to-plane distance is used to calculate the distance from each corner vertex of the other spring plates in each orientation to the contact plane.

[0162] The distances from each corner vertex of the other spring plates to the contact plane are displayed on the display interface as the corresponding gap measurement data between each corner vertex of the other spring plates and the inner stator.

[0163] In a possible implementation, the collection unit is further configured to:

[0164] A predetermined acquisition sequence is obtained, wherein the predetermined acquisition sequence is at least one of acquisition sequence arrangements and combinations that takes any orientation of the outer stator as a starting point and switches orientations in different horizontal and vertical directions.

[0165] According to a predetermined acquisition sequence, the spatial position coordinates of each corner vertex of each spring plate in each orientation are acquired in sequence.

[0166] It is understood that the gap measurement device embodiment and any implementation thereof correspond to the gap measurement method embodiment and any implementation thereof, respectively. The technical effects corresponding to the gap measurement device embodiment and any implementation thereof can be referred to the technical effects corresponding to the gap measurement method embodiment and any implementation thereof, and will not be repeated here.

[0167] It should be noted that the gap measuring device provided in the above embodiment is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0168] The functional units and modules in the above embodiments may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The above integrated units may be implemented in the form of hardware or software functional units. In addition, the specific names of the functional units and modules are only for the purpose of distinguishing them from each other and are not intended to limit the scope of protection of the embodiments of this application.

[0169] It should be noted that the information interaction, execution process, etc. between the above-mentioned devices / units are based on the same concept as the method embodiment of this application. Their specific functions and technical effects can be found in the method embodiment section and will not be repeated here.

[0170] An embodiment of the present application further provides an electronic device, the electronic device comprising one or more processors and a memory;

[0171] The memory is coupled to one or more processors, and is used to store computer program codes. The computer program codes include computer instructions. The one or more processors call the computer instructions to enable the electronic device to execute the gap measurement method shown above.

[0172] Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device 700 can be a mobile phone, a smart screen, a tablet computer, a wearable electronic device, an in-vehicle electronic device, an augmented reality (AR) device, a virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), a projector, or a communication device such as a server, a storage device, a base station, or a smart car. The embodiments of the present application do not impose any restrictions on the specific type of electronic device.

[0173] The memory 701 can be used to store computer software programs 702 and modules. The processor 703 executes various functional applications and data processing of the electronic device by running the software programs and modules stored in the memory 701. The memory 701 can mainly include a program storage area and a data storage area. The program storage area can store an operating system, at least one application required for a function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created based on the use of the electronic device (such as audio data, a phone book, etc.). In addition, the memory 701 can include a high-speed random access memory and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage device.

[0174] Among them, the processor 703 may include one or more processors such as a central processing unit, an application processor (AP), and a baseband processor. The processor can be the nerve center and command center of the wireless router. The processor 703 can generate operation control signals based on the instruction operation code and timing signals to complete the control of instruction fetching and execution. The memory 701 can be used to store computer executable program code, and the executable program code includes instructions. The processor 703 executes various functional applications and data processing of the network device by running the instructions stored in the memory. The memory 701 may include a program storage area and a data storage area, such as storing data of a sound signal to be played. For example, the memory can be a double data rate synchronous dynamic random access memory DDR or a flash memory.

[0175] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions; when the computer-readable storage medium is executed on an electronic device, the electronic device executes the gap measurement method shown above.

[0176] The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium, or a semiconductor medium (e.g., a solid-state disk (SSD)).

[0177] An embodiment of the present application further provides a computer program product comprising computer instructions. When the computer program product is run on an electronic device, the electronic device can execute the gap measurement method shown above.

[0178] The computer storage medium and computer program product provided in the above-mentioned embodiments of the present application are used to execute the method provided above. Therefore, the beneficial effects that can be achieved can refer to the corresponding beneficial effects of the method provided above, and will not be repeated here.

[0179] In the above embodiments, it can also be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, computer, server or data center to another website, computer, server or data center via a wired (such as a coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that a computer can access, or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0180] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0181] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments applied for herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0182] In the embodiments provided in this application, it should be understood that the disclosed devices / network equipment and methods can be implemented in other ways. For example, the device / network equipment embodiments described above are merely illustrative. For example, the division of the modules or units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0183] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0184] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A gap measurement method, characterized in that: The method for measuring the gap between a plurality of spring plates provided on an outer stator of a generator and an inner stator comprises: Collecting the spatial position coordinates of each corner vertex of each spring plate installed on the outer stator; Acquiring gap measurement data between a target spring plate and the inner stator in each of the orientations of the outer stator, wherein the outer stator is divided into a plurality of orientations according to spatial position characteristics; Fitting the contact plane between the target spring plate and the inner stator according to the spatial position coordinates of each corner vertex of the target spring plate and the gap measurement data between the target spring plate and the inner stator; According to the distance from each corner vertex of the other spring plates in each of the orientations to the contact plane, the gap measurement data between each corner vertex of the corresponding other spring plates and the inner stator are fed back, wherein the other spring plates are spring plates other than the target spring plate.

2. The method according to claim 1, characterized in that The collecting of the spatial position coordinates of each corner vertex of each spring plate installed on the outer stator includes: A laser tracker installed inside the outer stator is used to emit a laser beam to the target at each corner vertex of each spring plate; wherein each corner vertex is fixed with at least one target seat, and one target is installed on the target seat; Using the laser tracker, receiving the reflected light beams from the targets at each of the corner vertices; determining a time interval between the laser tracker emitting the laser beam and receiving the reflected light beam; The spatial position coordinates of each of the corner vertices relative to the laser tracker are determined according to the time interval.

3. The method according to claim 1, characterized in that The target spring plate includes: a first spring plate and a last spring plate, and obtaining gap measurement data between the target spring plate and the inner stator in each orientation of the outer stator includes: Obtaining a first measured gap between a first spring plate and the inner stator in each of the orientations of the outer stator, and a second measured gap between a last spring plate and the inner stator in each of the orientations of the outer stator; The gap measurement data between the target spring plate and the inner stator in each of the orientations of the outer stator is determined based on the first measurement gap and the second measurement gap.

4. The method according to claim 1, wherein The step of fitting a contact plane between the target spring plate and the inner stator according to the spatial position coordinates of each corner vertex of the target spring plate and the gap measurement data between the target spring plate and the inner stator comprises: Based on the principle of least squares method, the spatial position coordinates of each corner vertex of the target spring plate and the gap measurement data between the target spring plate and the inner stator are iteratively calculated until the best fitting plane parameter value is obtained so that the sum of the squares of the distances between each corner vertex of the target spring plate and the spatial plane is minimized; A contact plane equation between the target spring plate and the inner stator is determined according to the best-fit plane parameter value and a general spatial plane equation, wherein the contact plane equation is used to characterize the contact plane between the target spring plate and the inner stator.

5. The method according to claim 1, wherein Feedback of gap measurement data between each angular vertex of the other spring plates and the inner stator according to the distance from each angular vertex of the other spring plates in each of the orientations to the contact plane includes: Calculate the distance from each corner vertex of the other spring plates in each of the orientations to the contact plane using a mathematical formula for point-to-plane distance; The distances from each angular vertex of the other spring plates to the contact plane are displayed on the display interface as corresponding gap measurement data between each angular vertex of the other spring plates and the inner stator.

6. The method according to any one of claims 1 to 5, characterized in that The collecting of the spatial position coordinates of each corner vertex of each spring plate installed on the outer stator includes: Obtaining a predetermined acquisition sequence, wherein the predetermined acquisition sequence is at least one of acquisition sequence permutations and combinations that start at any orientation of the outer stator and switch orientations in different horizontal and vertical directions; According to the predetermined acquisition sequence, the spatial position coordinates of each corner vertex of each spring plate in each orientation are acquired in sequence.

7. A gap measuring device, characterized in that: The device is used to measure the gap between a plurality of spring plates provided on an outer stator of a generator and an inner stator, the device comprising: A collection unit, used for collecting the spatial position coordinates of each corner vertex of each spring plate installed on the outer stator; an acquiring unit, configured to acquire gap measurement data between a target spring plate and the inner stator in each of the orientations of the outer stator, wherein the outer stator is divided into a plurality of orientations according to spatial position characteristics; a fitting unit, configured to fit a contact plane between the target spring plate and the inner stator based on the spatial position coordinates of each corner vertex of the target spring plate and the gap measurement data between the target spring plate and the inner stator; A feedback unit is used to feedback the gap measurement data between each angular vertex of the other spring plates and the inner stator according to the distance from each angular vertex of the other spring plates in each of the orientations to the contact plane, wherein the other spring plates are spring plates other than the target spring plate.

8. The device according to claim 7, characterized in that The acquisition unit is further configured to: A laser tracker installed inside the outer stator is used to emit a laser beam to the target at each corner vertex of each spring plate; wherein each corner vertex is fixed with at least one target seat, and one target is installed on the target seat; Using the laser tracker, receiving the reflected light beams from the targets at each of the corner vertices; determining a time interval between the laser tracker emitting the laser beam and receiving the reflected light beam; The spatial position coordinates of each of the corner vertices relative to the laser tracker are determined according to the time interval.

9. The device according to claim 7, characterized in that The target spring plate includes: a first spring plate and a last spring plate, and the acquisition unit is further configured to: Obtaining a first measured gap between a first spring plate and the inner stator in each of the orientations of the outer stator, and a second measured gap between a last spring plate and the inner stator in each of the orientations of the outer stator; The gap measurement data is determined according to the first measurement gap and the second measurement gap.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the electronic device implements the method according to any one of claims 1 to 6.

Citation Information

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