CN114813197A - Overhauling device and method for ultrathin suspension type vertical generator - Google Patents
Overhauling device and method for ultrathin suspension type vertical generator Download PDFInfo
- Publication number
- CN114813197A CN114813197A CN202210720478.6A CN202210720478A CN114813197A CN 114813197 A CN114813197 A CN 114813197A CN 202210720478 A CN202210720478 A CN 202210720478A CN 114813197 A CN114813197 A CN 114813197A
- Authority
- CN
- China
- Prior art keywords
- knocking
- electromagnetic
- vertical generator
- longitudinal moving
- longitudinal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/008—Measuring or testing arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/346—Testing of armature or field windings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
Abstract
The invention discloses an ultrathin suspension type vertical generator overhauling device, which comprises an external holding frame, longitudinal moving mechanisms, electromagnetic knocking mechanisms, a sound sensor and a camera module, wherein the external holding frame comprises two rails which are oppositely arranged at intervals longitudinally, the longitudinal moving mechanisms are movably assembled on the external holding frame and can longitudinally move along the rails, the number of the electromagnetic knocking mechanisms is two, the electromagnetic knocking mechanisms are used for knocking the surface of a stator or the surface of a rotor to be detected, the two groups of the electromagnetic knocking mechanisms are assembled on the longitudinal moving mechanisms through mounting bottom plates and can respectively transversely move on the longitudinal moving mechanisms, the sound sensor is mounted on the mounting bottom plates and is used for receiving sound signals generated when the electromagnetic knocking mechanisms knock, and the camera module is mounted on the longitudinal moving mechanism. The invention also provides a maintenance method of the ultrathin suspension type vertical generator. The invention has the beneficial effects that: the device can go deep into the stator and rotor gaps to realize simultaneous detection of a plurality of slot wedges and solve the problem of instability of the device in the test process.
Description
Technical Field
The invention relates to the technical field of generator maintenance, in particular to an ultrathin suspension type vertical generator maintenance device and a maintenance method.
Background
Compared with the traditional thermal power generation, the hydroelectric power generation has the characteristics of low cost, high profit and the like, but the maintenance equipment is safe to operate, and the daily maintenance and repair of the hydraulic generator are also important.
The stator and the rotor are two important components of the generator, the diameter of the rotor of the large vertical hydraulic generator in the three gorges project is about 18m, the length of the rotor is about 3m, and the overall weight of the large vertical hydraulic generator can reach more than 400 tons. The rotor needs to be hoisted and taken out from the stator in the traditional vertical generator stator and rotor slot wedge maintenance, because the whole volume and mass of the equipment are large, a large amount of manpower and material resources are needed for the process to support and have certain potential safety hazards, and the specific detection effect is limited by the technical level of an operator. At present, four thousand seats of hydropower stations exist in China, but a mature corresponding overhaul device does not exist in the domestic market, so that the research and development of a proper vertical generator overhaul device are imperative for further improving the overhaul efficiency.
The problem of the large-scale vertical generator of power station overhauls the difficulty is solved and maintenance efficiency and precision are further improved to the solution, and then realize carrying out fault detection to the generator under the condition that need not to separate stator and rotor to break foreign technology blockade, fill in domestic generator trade maintenance market blank. In addition, the generator needs to be knocked to detect when being detected, so that the problem that the overhauling device is unstable when being knocked to detect is solved.
Disclosure of Invention
The invention discloses an ultrathin suspension type vertical generator overhauling device, which can effectively solve the technical problems related to the background technology.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an ultra-thin suspension type vertical generator maintenance device comprises an external holding frame, a longitudinal moving mechanism, an electromagnetic knocking mechanism, a sound sensor and a camera module, the outer holding frame comprises two opposite and spaced longitudinally arranged rails, the longitudinal moving mechanism is movably assembled on the outer holding frame and can move longitudinally along the rails, the electromagnetic knocking mechanisms are two groups and are used for knocking the surface of a stator or the surface of a rotor to be detected, the two groups of electromagnetic knocking mechanisms are assembled on the longitudinal moving mechanism through an installation bottom plate and can respectively transversely move on the longitudinal moving mechanism, the sound sensor is arranged on the mounting base plate and used for receiving sound signals generated when the electromagnetic knocking mechanism knocks, the camera module is installed on the longitudinal movement mechanism and used for detecting the knocking process and the knocking surface.
As a preferable improvement of the invention, the longitudinal moving mechanism comprises two longitudinal rods which are opposite and longitudinally arranged at intervals and a cross rod which connects the two longitudinal rods, and the electromagnetic knocking mechanism is arranged on the cross rod and can transversely move along the cross rod.
As a preferable improvement of the present invention, the longitudinal moving mechanism further includes an upper fixed cross bar connecting upper ends of the two longitudinal bars and a lower fixed cross bar connecting lower ends of the two longitudinal bars, the camera module includes an upper camera module mounted on the upper fixed cross bar and a lower camera module mounted on the lower fixed cross bar, a direction of the upper camera module is consistent with a knocking direction of the electromagnetic knocking mechanism for monitoring an overhaul process, and a direction of the lower camera module is opposite to the knocking direction of the electromagnetic knocking mechanism for detecting a surface of the stator or the rotor.
As a preferable improvement of the present invention, the two longitudinal rods of the longitudinal movement mechanism are engaged with the two rails through bearing wheels to realize longitudinal movement.
As a preferred improvement of the present invention, the electromagnetic knocking mechanism is mounted on the cross bar through a mounting base plate, the electromagnetic knocking mechanism includes an electromagnet module and a crank-link mechanism driven by the electromagnet module to perform a knocking action, and the crank-link mechanism is coupled to a pin hole provided on the mounting base plate through a pin shaft.
As a preferable improvement of the present invention, the longitudinal moving mechanism further includes an illumination system mounted on an inner side surface of the longitudinal bar.
As a preferable improvement of the present invention, the external holding frame includes an upper rail fixing plate connecting top ends of the two rails, and mounting holes for auxiliary fixing are respectively provided at left and right ends of the upper rail fixing plate.
As a preferable improvement of the present invention, a limiting block for limiting the longitudinal movement mechanism and preventing impact is installed at the upper end of the inner side of the rail.
As a preferable improvement of the invention, the overall thickness of the ultrathin suspension type vertical generator overhauling device is 22.75 +/-2 mm.
The invention also provides a maintenance method of the maintenance device of the ultrathin suspended vertical generator, which comprises the following steps:
the method comprises the following steps that firstly, before maintenance, the interval between two groups of electromagnetic knocking mechanisms is adjusted in advance according to the width of a slot wedge of a motor to be detected so as to detect two slot wedges simultaneously;
secondly, the ultrathin suspension type vertical generator maintenance device is suspended in a gap between a stator and a rotor of the vertical generator, and the electromagnetic knocking mechanism is adjusted to face the surface of the to-be-detected surface or the surface of the rotor;
thirdly, controlling the electromagnet module of the electromagnetic knocking mechanism to be switched on and off so as to drive the crank connecting rod mechanism to knock the detection point;
fourthly, controlling the longitudinal moving mechanism to move longitudinally to move a knocking point longitudinally so as to realize knocking maintenance of the slot wedge from top to bottom;
and step five, taking out the ultrathin suspension type vertical generator maintenance device after the maintenance is finished, and reinserting the stator and rotor gaps according to the positions of the corresponding slot wedges to perform the next pair of slot wedge maintenance.
The invention has the following beneficial effects:
1) the overall thickness of the maintenance device is only 22.75 +/-2 mm, and the maintenance device can go deep into a gap between the stator and the rotor to perform maintenance work;
2) the positions and the intervals of the two groups of mounting bottom plates and the electromagnetic knocking mechanism assembly can be adjusted according to the widths of the slot wedges of the stator and the rotor of the motor to be overhauled, so that the two slot wedges are overhauled simultaneously to improve the overhauling efficiency;
3) by arranging the electromagnetic knocking mechanism, the on-off of the electromagnet module can be controlled by the single chip microcomputer to drive the crank connecting rod mechanism to knock a detection point for maintenance, and the knocking frequency and the number of points can be flexibly set;
4) mounting holes are reserved in an upper guide rail fixing plate of the external holding frame, so that the auxiliary fixing can be realized, and impact vibration can be prevented;
5) controlling the longitudinal movement mechanism to longitudinally move so as to longitudinally move the knocking point to realize knocking maintenance of the slot wedge from top to bottom;
6) during maintenance, the upper camera module and the lower camera module can be used for monitoring the maintenance process and detecting the surface conditions of the stator and the rotor.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic perspective view of an ultra-thin suspended vertical generator maintenance device according to the present invention;
FIG. 2 is a schematic view of an assembly structure of the mounting baseplate and the electromagnetic knocking mechanism of the invention;
FIG. 3 is a schematic view of the longitudinal movement mechanism of the present invention;
FIG. 4 is a schematic view of the construction of the external holding frame of the present invention;
the left electromagnetic knocking mechanism 10, the electromagnet module 101, the crank link mechanism 102, the left mounting base plate 20, the sound sensor 201, the pin hole 202, the longitudinal moving mechanism 30, the longitudinal rod 300, the upper fixed cross rod 301, the cross rod 302, the lighting system 303, the upper camera module 304, the bearing wheel 305, the fixed hole 306, the lower camera module 307, the lower fixed cross rod 308, the external holding frame 40, the upper guide rail fixing plate 400, the rail 401, the limiting block 402, the mounting hole 403, the right electromagnetic knocking mechanism 50, and the right mounting base plate 60.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides an ultra-thin suspension type vertical generator maintenance device, which includes an external holding frame 40, a longitudinal moving mechanism 30, an electromagnetic knocking mechanism, a sound sensor 201, and a camera module. The external holding frame 40 includes two opposite and spaced longitudinally arranged rails 401, and the longitudinal moving mechanism 30 is movably mounted to the external holding frame 40 and can move longitudinally along the rails 401, so that longitudinal detection can be realized, and particularly, the longitudinal moving mechanism 30 is integrally embedded in the external holding frame 40.
Specifically, referring to fig. 4, the external holding frame 40 includes an upper rail fixing plate 400 connecting top ends of two rails 401, mounting holes 403 for auxiliary fixing are respectively formed at left and right ends of the upper rail fixing plate 400, and a limiting block 402 for limiting the longitudinal movement mechanism 30 and preventing impact is mounted at an upper end of an inner side of the rail 401.
The electromagnetic knocking mechanisms are two groups and used for knocking the surface of a stator or the surface of a rotor to be detected, and the two groups of electromagnetic knocking mechanisms are assembled on the longitudinal moving mechanism 30 and can respectively transversely move on the longitudinal moving mechanism 30, so that the distance and the position can be flexibly adjusted to adapt to the slot wedge intervals of motors of different models.
Referring to fig. 3, the longitudinal moving mechanism 30 includes two longitudinal rods 300 disposed opposite to each other and spaced apart from each other in a longitudinal direction, and a cross rod 302 connecting the two longitudinal rods 300, and the electromagnetic knocking mechanism is mounted on the cross rod 302 and can move transversely along the cross rod 302. Specifically, the cross bar 302 is connected to the longitudinal bar 300 through a fixing hole 306.
The two longitudinal rods cooperate with the two rails 401 via bearing wheels 305 to effect longitudinal movement of the longitudinal movement mechanism 30.
The longitudinal moving mechanism 30 further comprises an upper fixed cross bar 301 connecting the upper ends of the two longitudinal bars and a lower fixed cross bar 308 connecting the lower ends of the two longitudinal bars.
The longitudinal moving mechanism 30 further comprises a lighting system 303 installed on the inner side surface of the longitudinal rod, so that the camera module can monitor conveniently, and specifically, the lighting system 303 is an LED lamp strip.
The camera module is installed in move from north to south on the mechanism 30 in order to be used for detecting the surface of knocking process and knocking, it is specific, the camera module is including installing in upper portion camera module 304 on the fixed horizontal pole 301 of upper portion and installing in lower part camera module 307 on the fixed horizontal pole 308 of lower part, the orientation of upper portion camera module 304 with the electromagnetism is knocked the direction of knocking of mechanism and is agreed so that be used for overhauing the process monitoring, the orientation of lower part camera module 307 with the electromagnetism is knocked the knocking direction of mechanism and is used for stator or rotor surface to detect.
Referring specifically to fig. 1 and 2, the electromagnetic knocking mechanism is mounted on the cross bar 302 through a mounting base plate, the electromagnetic knocking mechanism includes an electromagnet module 101 and a crank-link mechanism 102 driven by the electromagnet module 101 to perform a knocking action, and the crank-link mechanism 102 is coupled to a pin hole 202 formed in the mounting base plate through a pin shaft.
When the maintenance device carries out maintenance work of the generator, the singlechip controls the electromagnet module 101 to be powered on and off so as to drive the crank connecting rod mechanism 102 to rotate, and the crank connecting rod mechanism 102 is hinged with the pin hole 202 on the mounting base plate through the pin shaft to realize execution of knocking action. In addition, the number of knocking points and frequency of the electromagnetic knocking mechanism can be adjusted according to actual needs, and signal acquisition is carried out through the sound sensor 201 beside the mounting base plate.
In addition, through setting up electromagnetism knocking mechanism can realize utilizing single chip microcomputer control electro-magnet module 101's break-make to drive crank link mechanism and strike the check point and overhaul to can set up in a flexible way and strike frequency and count.
It should be further explained that, specifically referring to fig. 3, the knocking position of the electromagnetic knocking mechanism is determined by the position of the slot wedge to be detected of the stator and the rotor of the generator, the knocking position is adjusted by adjusting the position of the mounting base plate and the electromagnetic knocking mechanism assembly on the cross rod 302, and the corresponding upper camera module 304 and the corresponding lower camera module 307 are moved after the knocking position is determined, so that the upper camera module and the lower camera module keep a straight line with the electromagnetic knocking mechanism, and the online monitoring of the maintenance process is realized.
The generator stator and rotor maintenance is to use a knocking device to knock the surface of the stator and rotor to generate vibration and send out sound signals, and the sound signals are acquired by a sound sensor 201. In order to solve the problem of instability of the device due to impact generated during knocking, the upper rail fixing plate 400 of the external holding frame 40 is provided with a mounting hole 403 for auxiliary fixing, and subsequent feature extraction is required for the extracted acoustic signal.
Electromagnetism is strikeed the mechanism and is included left electromagnetism and strikeed mechanism 10 and right electromagnetism and strike mechanism 50, it is corresponding, mounting plate is including being used for the installation left side mounting plate 20 of left side electromagnetism strike mechanism 10 with be used for the installation right side mounting plate 60 of right side electromagnetism strike mechanism 50, it is further, mounting plate pass through movable bolt assemble in on the horizontal pole 302, like this, through adjusting movable bolt adjustment mounting plate and electromagnetism and strikeed position and the interval of mechanism assembly on horizontal pole 302 to realize overhauing many wedges of generator simultaneously.
The sound sensor 201 is arranged on the side surface of the mounting base plate and is used for receiving a sound signal generated when the electromagnetic knocking mechanism knocks. Specifically, the sound sensor 201 is a microphone.
It should be further noted that the sound sensor 201 is disposed on each of the left mounting base plate 20 and the right mounting base plate 60.
The overall thickness of the ultrathin suspension type vertical generator overhauling device is 22.75 +/-2 mm, the overall thickness of the electromagnetic knocking mechanism and the installation bottom plate is 20 +/-2 mm, the vertical hydraulic generator is the same as a common generator, the main components of the vertical hydraulic generator are a stator and a rotor, the clearance between the stator and the rotor is about 32mm, and a common motor fault diagnosis device is difficult to go deep into the clearance to finish diagnosis and overhauling work.
The invention also provides a maintenance method of the maintenance device of the ultrathin suspended vertical generator, which comprises the following steps:
the method comprises the following steps that firstly, before maintenance, the interval between two groups of electromagnetic knocking mechanisms is adjusted in advance according to the width of a slot wedge of a motor to be detected so as to detect two slot wedges simultaneously;
secondly, the ultrathin suspension type vertical generator maintenance device is suspended in a gap between a stator and a rotor of the vertical generator, and the electromagnetic knocking mechanism is adjusted to face the surface of the to-be-detected surface or the surface of the rotor;
thirdly, controlling the electromagnet module of the electromagnetic knocking mechanism to be switched on and off so as to drive the crank connecting rod mechanism to knock the detection point;
fourthly, controlling the longitudinal moving mechanism to move longitudinally to move a knocking point longitudinally so as to realize knocking maintenance of the slot wedge from top to bottom;
and step five, taking out the ultrathin suspension type vertical generator maintenance device after the maintenance is finished, and reinserting the stator and rotor gaps according to the positions of the corresponding slot wedges to perform the next pair of slot wedge maintenance.
The invention has the following beneficial effects:
1) the overall thickness of the maintenance device is only 22.75 +/-2 mm, and the maintenance device can go deep into a gap between the stator and the rotor to perform maintenance work;
2) the positions and the intervals of the two groups of mounting bottom plates and the electromagnetic knocking mechanism assembly can be adjusted according to the widths of the slot wedges of the stator and the rotor of the motor to be overhauled, so that the two slot wedges are overhauled simultaneously to improve the overhauling efficiency;
3) by arranging the electromagnetic knocking mechanism, the on-off of the electromagnet module can be controlled by the single chip microcomputer to drive the crank connecting rod mechanism to knock a detection point for maintenance, and the knocking frequency and the number of points can be flexibly set;
4) mounting holes are reserved in an upper guide rail fixing plate of the external holding frame, so that the auxiliary fixing can be realized, and impact vibration can be prevented;
5) controlling the longitudinal movement mechanism to longitudinally move so as to longitudinally move the knocking point to realize knocking maintenance of the slot wedge from top to bottom;
6) during maintenance, the upper camera module and the lower camera module can be used for monitoring the maintenance process and detecting the surface conditions of the stator and the rotor.
While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the specification and the embodiments, which are fully applicable to various fields of endeavor for which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. An ultra-thin suspension type vertical generator maintenance device is characterized by comprising an external holding frame, a longitudinal moving mechanism, an electromagnetic knocking mechanism, a sound sensor and a camera module, the outer holding frame comprises two opposite and spaced longitudinally arranged rails, the longitudinal moving mechanism is movably assembled on the outer holding frame and can move longitudinally along the rails, the electromagnetic knocking mechanisms are two groups and are used for knocking the surface of a stator or the surface of a rotor to be detected, the two groups of electromagnetic knocking mechanisms are assembled on the longitudinal moving mechanism through an installation bottom plate and can respectively transversely move on the longitudinal moving mechanism, the sound sensor is arranged on the mounting base plate and used for receiving sound signals generated when the electromagnetic knocking mechanism knocks, the camera module is installed on the longitudinal movement mechanism and used for detecting the knocking process and the knocking surface.
2. The ultra-thin suspended vertical generator overhaul device as claimed in claim 1, wherein: the longitudinal moving mechanism comprises two longitudinal rods which are opposite and longitudinally arranged at intervals and a cross rod which is connected with the two longitudinal rods, and the electromagnetic knocking mechanism is arranged on the cross rod and can transversely move along the cross rod.
3. The ultra-thin suspended vertical generator overhaul device as claimed in claim 2, wherein: the longitudinal moving mechanism further comprises an upper fixed cross rod and a lower fixed cross rod, the upper fixed cross rod is connected with the upper ends of the two longitudinal rods, the lower fixed cross rod is connected with the lower ends of the two longitudinal rods, the camera module comprises an upper camera module arranged on the upper fixed cross rod and a lower camera module arranged on the lower fixed cross rod, the direction of the upper camera module is consistent with the knocking direction of the electromagnetic knocking mechanism so as to be used for monitoring the maintenance process, and the direction of the lower camera module is opposite to the knocking direction of the electromagnetic knocking mechanism so as to be used for detecting the surface of the stator or the rotor.
4. The ultra-thin suspended vertical generator overhaul device as claimed in claim 2, wherein: two longitudinal rods of the longitudinal moving mechanism are matched with the two rails through bearing wheels to realize longitudinal movement.
5. The ultra-thin suspended vertical generator overhaul device as claimed in claim 2, wherein: the electromagnetic knocking mechanism is arranged on the cross rod through a mounting base plate and comprises an electromagnet module and a crank connecting rod mechanism driven by the electromagnet module to execute knocking actions, and the crank connecting rod mechanism is in shaft connection with pin holes formed in the mounting base plate through pin shafts.
6. The ultra-thin suspended vertical generator overhaul device as claimed in claim 2, wherein: the longitudinal movement mechanism further comprises an illumination system mounted on the inner side surface of the longitudinal rod.
7. The ultra-thin suspended vertical generator overhaul device as claimed in claim 1, wherein: the external holding frame comprises an upper guide rail fixing plate which is connected with the top ends of the two rails, and mounting holes for auxiliary fixing are respectively formed in the left end and the right end of the upper guide rail fixing plate.
8. An ultra-thin suspended vertical generator overhaul device as claimed in claim 1 or 7, wherein: and the upper end of the inner side of the track is provided with a limiting block for limiting the longitudinal moving mechanism and preventing impact.
9. The ultra-thin suspended vertical generator overhaul device as claimed in claim 1, wherein: the whole thickness of the ultrathin suspension type vertical generator overhauling device is 22.75 +/-2 mm.
10. A method of servicing an ultra-thin hanging vertical generator service equipment according to any one of claims 1-9, characterized in that the method of servicing comprises the steps of:
the method comprises the following steps that firstly, before maintenance, the interval between two groups of electromagnetic knocking mechanisms is adjusted in advance according to the width of a slot wedge of a motor to be detected so as to detect two slot wedges simultaneously;
secondly, the ultrathin suspension type vertical generator maintenance device is suspended in a gap between a stator and a rotor of the vertical generator, and the electromagnetic knocking mechanism is adjusted to face the surface of the to-be-detected surface or the surface of the rotor;
thirdly, controlling the electromagnet module of the electromagnetic knocking mechanism to be switched on and off so as to drive the crank connecting rod mechanism to knock the detection point;
fourthly, controlling the longitudinal moving mechanism to move longitudinally to move a knocking point longitudinally so as to realize knocking maintenance of the slot wedge from top to bottom;
and step five, taking out the ultrathin suspension type vertical generator maintenance device after the maintenance is finished, and reinserting the stator and rotor gaps according to the positions of the corresponding slot wedges to perform the next pair of slot wedge maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210720478.6A CN114813197A (en) | 2022-06-24 | 2022-06-24 | Overhauling device and method for ultrathin suspension type vertical generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210720478.6A CN114813197A (en) | 2022-06-24 | 2022-06-24 | Overhauling device and method for ultrathin suspension type vertical generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114813197A true CN114813197A (en) | 2022-07-29 |
Family
ID=82520334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210720478.6A Pending CN114813197A (en) | 2022-06-24 | 2022-06-24 | Overhauling device and method for ultrathin suspension type vertical generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114813197A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115549404A (en) * | 2022-09-23 | 2022-12-30 | 中国长江电力股份有限公司 | Hydraulic generator stator and rotor camera shooting inspection device and hydraulic generator maintenance method |
| CN115753059A (en) * | 2022-11-23 | 2023-03-07 | 郑州大学 | Device and method for detecting bolt looseness based on combination of hearing sense and vision sense |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05223697A (en) * | 1992-02-12 | 1993-08-31 | Hitachi Ltd | Device for inspecting/evaluating slot wedge loosening of rotary electric machine |
| JPH08201353A (en) * | 1995-01-30 | 1996-08-09 | Tamagawa Seiki Co Ltd | Outer wall diagnostic method |
| CN102980757A (en) * | 2012-11-20 | 2013-03-20 | 北京农业智能装备技术研究中心 | Device and method for automatically testing two-dimensional distribution of spraying |
| CN207408074U (en) * | 2017-11-01 | 2018-05-25 | 信丰世嘉科技有限公司 | A kind of lossless perspective detector of cam lens |
| CN108956185A (en) * | 2018-09-27 | 2018-12-07 | 深圳市迈实自动化有限公司 | A kind of ultrasonic probe characteristic measuring device |
| WO2020250431A1 (en) * | 2019-06-14 | 2020-12-17 | 三菱電機株式会社 | Device for inspecting wedge looseness of rotary electric machine, system for inspecting wedge looseness of rotary electric machine, and method for inspecting wedge looseness of rotary electric machine |
| CN112110377A (en) * | 2020-08-27 | 2020-12-22 | 银川威力传动技术股份有限公司 | Elevator for online detection and online detection system |
| CN112798238A (en) * | 2020-12-21 | 2021-05-14 | 上海电气电站设备有限公司 | Slot wedge elasticity automatic checkout device |
| CN113997309A (en) * | 2021-12-31 | 2022-02-01 | 湖南大学 | Wall-climbing generator maintenance robot device based on swing mechanism |
| CN114046976A (en) * | 2021-11-11 | 2022-02-15 | 上海电气自动化设计研究所有限公司 | Generator stator slot wedge tightness detection device |
| CN216483692U (en) * | 2021-12-10 | 2022-05-10 | 江南大学 | Automatic tapping device for metering and detecting pointer type pressure gauge |
-
2022
- 2022-06-24 CN CN202210720478.6A patent/CN114813197A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05223697A (en) * | 1992-02-12 | 1993-08-31 | Hitachi Ltd | Device for inspecting/evaluating slot wedge loosening of rotary electric machine |
| JPH08201353A (en) * | 1995-01-30 | 1996-08-09 | Tamagawa Seiki Co Ltd | Outer wall diagnostic method |
| CN102980757A (en) * | 2012-11-20 | 2013-03-20 | 北京农业智能装备技术研究中心 | Device and method for automatically testing two-dimensional distribution of spraying |
| CN207408074U (en) * | 2017-11-01 | 2018-05-25 | 信丰世嘉科技有限公司 | A kind of lossless perspective detector of cam lens |
| CN108956185A (en) * | 2018-09-27 | 2018-12-07 | 深圳市迈实自动化有限公司 | A kind of ultrasonic probe characteristic measuring device |
| WO2020250431A1 (en) * | 2019-06-14 | 2020-12-17 | 三菱電機株式会社 | Device for inspecting wedge looseness of rotary electric machine, system for inspecting wedge looseness of rotary electric machine, and method for inspecting wedge looseness of rotary electric machine |
| CN112110377A (en) * | 2020-08-27 | 2020-12-22 | 银川威力传动技术股份有限公司 | Elevator for online detection and online detection system |
| CN112798238A (en) * | 2020-12-21 | 2021-05-14 | 上海电气电站设备有限公司 | Slot wedge elasticity automatic checkout device |
| CN114046976A (en) * | 2021-11-11 | 2022-02-15 | 上海电气自动化设计研究所有限公司 | Generator stator slot wedge tightness detection device |
| CN216483692U (en) * | 2021-12-10 | 2022-05-10 | 江南大学 | Automatic tapping device for metering and detecting pointer type pressure gauge |
| CN113997309A (en) * | 2021-12-31 | 2022-02-01 | 湖南大学 | Wall-climbing generator maintenance robot device based on swing mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115549404A (en) * | 2022-09-23 | 2022-12-30 | 中国长江电力股份有限公司 | Hydraulic generator stator and rotor camera shooting inspection device and hydraulic generator maintenance method |
| CN115549404B (en) * | 2022-09-23 | 2023-11-21 | 中国长江电力股份有限公司 | Imaging inspection device for stator and rotor of hydraulic generator and maintenance method of hydraulic generator |
| CN115753059A (en) * | 2022-11-23 | 2023-03-07 | 郑州大学 | Device and method for detecting bolt looseness based on combination of hearing sense and vision sense |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114813197A (en) | Overhauling device and method for ultrathin suspension type vertical generator | |
| CN210347125U (en) | Simulation test device for measuring reliability of traction machine brake | |
| CN204902885U (en) | Pantograph comprehensive testing test bench | |
| CN209161032U (en) | A kind of film material feed mechanism | |
| CN111610041B (en) | Speed control system and method for rail vehicle crash test bed | |
| CN215516264U (en) | Modular elevator | |
| CN110271933A (en) | A kind of elevator limit switch detection method and its system | |
| CN114509672B (en) | Traction linear motor characteristic test device | |
| CN212514068U (en) | Elevator well baffle impact test frame | |
| CN111189658B (en) | Bridge box girder health state monitoring system and monitoring method | |
| CN203794833U (en) | Electromagnetic power tamping machine | |
| CN102788661B (en) | Lift car gravity center tester | |
| CN206783051U (en) | Elevator speed limitor without machine room responsiveness verifies servicing unit | |
| CN112072865A (en) | Large-scale motor online core-pulling device and application method thereof | |
| CN103123253B (en) | A kind of suspension type detects holding unit | |
| CN102357789B (en) | Overhead mounting-dismounting device and method for gearbox of wind driven generator | |
| CN201229311Y (en) | X-tube detection drive device | |
| CN109782171A (en) | A kind of anti-jamming traction device for being detected in generator thorax | |
| CN215706367U (en) | Crab-like monorail movement device for rail bolt looseness detection | |
| CN218116071U (en) | Road surface levelling instrument is used in road construction | |
| CN211744288U (en) | Flywheel energy storage battery installation device | |
| CN219065518U (en) | Suspension type safety inspection follower | |
| CN218239309U (en) | Dynamic force measuring device for elevator speed limiter | |
| CN217032836U (en) | Contact pantograph pressure measurement | |
| CN217932019U (en) | Characteristic testing device for magnetic levitation force |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |