CN223332290U - Blade channeling amount measuring device of tubular turbine unit - Google Patents
Blade channeling amount measuring device of tubular turbine unitInfo
- Publication number
- CN223332290U CN223332290U CN202422938877.7U CN202422938877U CN223332290U CN 223332290 U CN223332290 U CN 223332290U CN 202422938877 U CN202422938877 U CN 202422938877U CN 223332290 U CN223332290 U CN 223332290U
- Authority
- CN
- China
- Prior art keywords
- driving structure
- driving
- measuring device
- blade
- flow unit
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a blade movement measuring device of a through-flow type unit, which relates to the technical field of hydroelectric generation and comprises a mounting assembly, a dial indicator, a first driving structure and a second driving assembly, wherein the mounting assembly can be mounted on a runner body, the dial indicator can be mounted on the runner body, the first driving structure is arranged on one side of the mounting assembly, one end of the first driving structure can be in contact with a blade shaft, the second driving assembly comprises a pair of second driving structures and a pair of connecting pieces, the pair of connecting pieces are arranged at two ends of the other side of the mounting assembly in a matched manner, the pair of second driving structures are respectively matched with the pair of connecting pieces and used for driving the connecting pieces, and the connecting pieces comprise connecting screws, fixing plates and locking nuts.
Description
Technical Field
The utility model relates to the technical field of hydroelectric generation, in particular to a blade movement measuring device of a tubular turbine.
Background
The blade of the through-flow unit needs to be rotated and adjusted in real time according to the load change, the rotation frequency is higher, the rotor copper tile is worn out after the rotor runs for a long time, and the blade movement is increased to exceed a design value, so that the blade movement measurement is an important measurement step in the process of overhauling the rotor of the through-flow unit, and the measurement precision has guiding significance for the replacement of the rotor copper tile.
The blade shifting amount is the movement range of the blade in the radial direction, and the parameter is important to ensure the normal operation and performance of the blade. In a tubular turbine, the detection and treatment of blade fluctuation are one of the important contents of unit maintenance, and the suitability of blade fluctuation directly affects the efficiency and safety of the turbine.
The traditional measurement mode is to use a jack to jack the distance between the blade shaft and the rotating wheel body and then use a feeler gauge to measure. Because the measuring space is narrow, and the jack has the phenomenon that two sides are inconsistent in the extending process, the current measuring mode is difficult to measure, and the measured value obtained by measuring is easy to deviate from the true value, so that the problem that the actual value of the blade movement cannot be accurately reflected is solved. Therefore, a through-flow unit blade fluctuation measuring device capable of accurately measuring the actual value of the blade fluctuation is urgently needed.
Disclosure of utility model
Based on the above, the utility model provides a through-flow unit blade running amount measuring device, and by the application of the utility model, the measuring points are arranged outside the rotating wheel, so that the problems that the measuring is difficult, the measuring is easy to deviate from the true value, and the actual value of the blade running amount cannot be accurately reflected in the process of measuring the blade running amount at present are solved.
The technical scheme of the utility model is as follows:
a through-flow unit blade-play measurement device comprising:
the installation component can be installed on the runner hub;
The dial indicator can be arranged on the rotating wheel body and is used for measuring the running amount of the blade;
The first driving structure is arranged on one side of the mounting assembly, and one end of the first driving structure can be contacted with the blade shaft and is used for driving the blade shaft;
The second driving assembly comprises a pair of second driving structures and a pair of connecting pieces, the pair of connecting pieces are arranged at two ends of the other side of the installation assembly in a matched mode, and the pair of second driving structures are respectively arranged with the pair of connecting pieces in a matched mode and are used for driving the connecting pieces;
wherein, the connecting piece includes connecting screw rod, fixed disk and lock nut, and connecting screw rod one end and paddle axle threaded connection, the fixed disk cover is established on the connecting screw rod, and the lock nut cover is established at the connecting screw rod other end, and with connecting screw rod threaded connection, lock nut is located fixed disk one side, and is used for restricting the removal of fixed disk, second drive structure one end and installation component contact, the other end and fixed disk opposite side contact.
Preferably, the first driving structure is an ultrathin hydraulic jack, and an output end of the first driving structure can be contacted with the blade shaft for driving the blade shaft.
Preferably, the second driving structure is a hollow hydraulic jack, the second driving structure is sleeved on the connecting screw, the output end of the second driving structure can be in contact with the mounting assembly, and the other end of the second driving structure can be in contact with the fixed disc.
Preferably, the installation component includes mounting plate and a plurality of mounting, and a plurality of mounting cooperation sets up in the mounting plate outside, and a plurality of mounting one end and mounting plate fixed connection, the other end can be with the runner body detachable connection.
Preferably, one side of the mounting plate is provided with an arc-shaped mounting seat, and the first driving structure can be mounted in the arc-shaped mounting seat.
Preferably, the number of the fixing pieces is two or four, when the number of the fixing pieces is two, the two fixing pieces are respectively positioned at two sides of the mounting plate, and when the number of the fixing pieces is four, the four fixing pieces are arranged on the mounting plate in a circumferential array with the circumference of the mounting plate.
Preferably, the mounting includes arc fixed block and a pair of connecting rod, a pair of connecting rod one end and mounting disc fixed connection, the other end and arc fixed block fixed connection have the notch of stepping down between a pair of connecting rods, connecting screw one end accessible is stepping down notch and paddle axle threaded connection, connecting screw and the notch clearance fit of stepping down, arc fixed block and runner body accessible bolt detachable connection.
Preferably, a pair of connecting rods are provided with round fixing blocks, through holes are formed in the round fixing blocks, the through holes are matched with the abdicating notch, one end of each connecting screw rod can penetrate through the through holes and is in clearance fit with the through holes, one end of each second driving structure is in contact with the round fixing blocks, and the other end of each second driving structure can be in contact with the fixing disc.
Preferably, the circular fixing block is provided with an arc-shaped placing table matched with the second driving structure, and the second driving structure can be placed on the arc-shaped placing table.
Preferably, the dial indicator comprises a meter body and a magnetic meter seat for mounting the meter body, wherein the meter body can be mounted on the magnetic meter seat, and the magnetic meter seat can be mounted on the runner wheel body.
Compared with the prior art, the utility model has the beneficial effects that:
When the device for measuring the blade running amount of the through-flow unit is used, the blade shaft is driven by the first driving structure to reset the blade shaft, the blade shaft is located at an initial position, namely a position where no running occurs, the dial indicator is zeroed, the first driving structure 30 is loosened after zeroing (the point is that the dial indicator is not touched in the loosening process), the connecting screw is screwed into the blade shaft, one end of the second driving structure is contacted with the mounting assembly, the fixed disc is moved to be contacted with the other end of the second driving structure and locked by the locking nut and contacted with the blade shaft, the fixed disc is driven by the second driving structure, the connecting screw is pulled to move along the radial direction at the same time with the blade shaft, and the reading obtained by the dial indicator is the maximum running amount of the blade at the moment. The utility model can rapidly and accurately measure the momentum of the paddle She Cuan, and solves the problems that the measurement is difficult, the larger deviation from the true value is easy to occur and the actual value of the paddle fluctuation can not be accurately reflected when the measurement of the paddle fluctuation is carried out at present.
Drawings
FIG. 1 is a schematic view of a cross flow machine set blade displacement measuring device according to an embodiment of the present utility model when mounted on a rotor body;
FIG. 2 is a schematic diagram of a device for measuring blade displacement of a tubular assembly according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram II of a device for measuring blade displacement of a tubular assembly according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a partial structure of a device for measuring blade displacement of a tubular assembly according to an embodiment of the present utility model;
reference numerals illustrate:
The device comprises a 1-runner body, a 2-paddle shaft, a 10-mounting assembly, a 100-mounting plate, a 101-fixing piece, a 102-arc-shaped mounting seat, a 103-arc-shaped fixing block, a 104-connecting rod, a 105-yielding notch, a 106-round fixing block, a 107-through hole, a 108-arc-shaped placing table, a 20-dial gauge, a 200-gauge body, a 201-magnetic gauge seat, a 30-first driving structure, a 40-second driving assembly, a 400-second driving structure, a 401-connecting piece, a 402-connecting screw rod, a 403-fixing plate and a 404-locking nut.
Detailed Description
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Examples:
As shown in fig. 1 to 3, in order to solve the above-mentioned problems, the present embodiment discloses a through-flow unit blade movement measuring device, which includes:
A mounting assembly 10, the mounting assembly 10 being mountable on the runner hub 1;
a dial indicator 20, the dial indicator 20 being mountable on the rotor body 1 and being used for measuring blade movement;
A first driving structure 30, wherein the first driving structure 30 is arranged at one side of the installation assembly 10, and one end of the first driving structure 30 can be contacted with the blade shaft 2 for driving the blade shaft 2;
The second driving assembly 40, the second driving assembly 40 includes a pair of second driving structures 400 and a pair of connecting pieces 401, the pair of connecting pieces 401 are cooperatively disposed at two ends of the other side of the mounting assembly 10, and the pair of second driving structures 400 are cooperatively disposed with the pair of connecting pieces 401, respectively, for driving the connecting pieces 401;
Wherein, connecting piece 401 includes connecting screw 402, fixed disk 403 and lock nut 404, and connecting screw 402 one end and 2 threaded connection of paddle axle, and the fixed disk 403 cover is established on connecting screw 402, and lock nut 404 cover is established at the connecting screw 402 other end, and with connecting screw 402 threaded connection, lock nut 404 is located fixed disk 403 one side, and is used for restricting the removal of fixed disk 403, and second drive structure 400 one end and installation component 10 contact, the other end and fixed disk 403 opposite side contact.
When the device for measuring the blade running amount of the through-flow unit is used, the blade running amount of the through-flow unit is arranged on the rotary wheel body 1, then the blade shaft 2 is driven by the first driving structure 30 to reset the blade shaft 2, at the moment, the blade shaft 2 is positioned at the initial position, namely the position where no running occurs, then the dial indicator 20 is zeroed, the first driving structure 30 is loosened after zeroing (note that the dial indicator is not touched in the loosening process), then the connecting screw 402 is screwed into the blade shaft 2, then one end of the second driving structure 400 is contacted with the mounting assembly 10, then the fixed disc 403 is moved to be contacted with the other end of the second driving structure 400, and is locked by the locking nut 404 and is contacted with the blade shaft 2, then the fixed disc 403 is driven by the second driving structure 400, and then the connecting screw 402 is pulled, and the blade shaft 2 is pulled to be moved to the position where the running occurs again, at the moment, namely the blade running amount is obtained by the reading of the dial indicator 20. The utility model can rapidly and accurately measure the momentum of the paddle She Cuan, and solves the problems that the measurement is difficult, the larger deviation from the true value is easy to occur and the actual value of the paddle fluctuation can not be accurately reflected when the measurement of the paddle fluctuation is carried out at present.
It should be noted that the blade shaft 2 has a plurality of internal threaded holes, the connecting screw 402 is matched with the internal threaded holes, and one end of the connecting screw 402 can be in threaded connection with the internal threaded holes. The internal thread holes of the blade shaft 2 are utilized for connection, so that the structure added on the blade shaft 2 can be effectively avoided, and the blade shaft 2 is not affected after the novel structure is used.
The first driving structure 30 is an ultrathin hydraulic jack, and an output end of the first driving structure 30 can be in contact with the blade shaft 2 for driving the blade shaft 2. The ultrathin hydraulic jack can adopt an ultrathin hydraulic jack which can realize the functions of the utility model in the prior art, namely one type of hydraulic jack.
The second driving structure 400 is a hollow hydraulic jack, the second driving structure 400 is sleeved on the connecting screw 402, the output end of the second driving structure 400 can be contacted with the mounting assembly 10, and the other end can be contacted with the fixed disc 403. The hollow hydraulic jack can adopt a hollow hydraulic jack which can realize the function of the utility model in the prior art, namely one type of hydraulic jack.
It is further preferable that the hollow hydraulic jacks adopt the same hydraulic oil pump station, and the pair of hollow hydraulic jacks are controlled simultaneously through the three-way valve. The pair of hollow hydraulic jacks can be effectively controlled to extend simultaneously by adopting the same hydraulic oil pump station, and the extending amounts are the same, so that the deviation of measured numerical values caused by different extending amounts is avoided.
As shown in fig. 2, in order to facilitate the installation of the first driving structure 30, this embodiment is modified based on the above embodiment, and is different from the above embodiment in that the installation assembly 10 includes an installation disc 100 and a plurality of fixing members 101, the plurality of fixing members 101 are cooperatively disposed outside the installation disc 100, one end of each of the plurality of fixing members 101 is fixedly connected with the installation disc 100, and the other end thereof is detachably connected with the rotor body 1.
Wherein, the mounting plate 100 is provided with an arc-shaped mounting seat 102 at one side, and the first driving structure 30 can be mounted in the arc-shaped mounting seat 102.
In use, the first drive structure 30 may be mounted within the arcuate mounting block 102, while in use, the mounting plate 100 may also support the first drive structure 30.
As shown in fig. 2 to 4, only four fixing members 101 are taken as an example, in order to facilitate connection of the mounting assembly 10 with the sheave body 1, the present embodiment is modified based on the above embodiment, and is different from the above embodiment in that the number of fixing members 101 is two or four, when the number of fixing members 101 is two, the two fixing members 101 are respectively located at both sides of the mounting plate 100, and when the number of fixing members 101 is four, the four fixing members 101 are disposed on the mounting plate 100 in a circumferential array with the circumference of the mounting plate 100.
The mounting 101 includes arc fixed block 103 and a pair of connecting rod 104, and a pair of connecting rod 104 one end and mounting disc 100 fixed connection, the other end and arc fixed block 103 fixed connection have the notch 105 of stepping down between a pair of connecting rod 104, and connecting screw 402 one end can pass the notch 105 of stepping down and blade axle 2 threaded connection, connecting screw 402 and the notch 105 clearance fit of stepping down, and arc fixed block 103 can be dismantled with runner body 1 accessible bolt and be connected.
As shown in fig. 1, it should be noted that the wheel body 1 itself has a plurality of internal threaded holes, and the connection between the mounting assembly 10 and the wheel body 1 can be completed only by providing the arc-shaped fixing block 103 with internal threaded holes that are matched with the internal threaded holes on the wheel body 1 and connecting the two through bolts.
When in use, the number of the fixing pieces 101 can be set according to actual needs, and two or four fixing pieces 101 can be connected with the rotating wheel body 1.
As shown in fig. 4, in order to facilitate the installation of the second driving structure 400 and the positioning of the connecting screw 402, this embodiment is modified based on the above embodiment, and is different from the above embodiment in that a pair of connecting rods 104 are provided with a circular fixing block 106, the circular fixing block 106 is fixedly connected to the pair of connecting rods 104, the circular fixing block 106 is provided with a through hole 107, the through hole 107 is disposed in cooperation with the abdicating notch 105, one end of the connecting screw 402 may pass through the through hole 107 and is in clearance fit with the through hole 107, one end of the second driving structure 400 contacts with the circular fixing block 106, and the other end may contact with the fixing disc 403.
The circular fixing block 106 is provided with an arc-shaped placing table 108 matched with the second driving structure 400, and the second driving structure 400 can be placed on the arc-shaped placing table 108.
It should be noted that, the through hole 107 is matched with the internal threaded hole on the blade shaft 2, so as to facilitate positioning of the connecting screw 402, and meanwhile, the circular fixing block 106 and the arc-shaped placing table 108 are arranged, so that the second driving structure 400 can be installed and used conveniently.
As shown in fig. 4, in order to facilitate the installation and use of the dial indicator 20, the present embodiment is modified based on the above-described embodiment, and is different from the above-described embodiment in that the dial indicator 20 includes a dial body 200 and a magnetic stand 201 for installing the dial body 200, the dial body 200 may be installed on the magnetic stand 201, and the magnetic stand 201 may be installed on the rotator body 1.
The dial indicator 20 may adopt a combination structure of the indicator body 200 and the magnetic meter seat 201 in the prior art, one end of the measuring rod on the indicator body 200 may contact with the blade shaft 2, and the installation and adjustment of the indicator body 200 may be rapidly completed through the magnetic meter seat 201, so as to conveniently measure the displacement distance of the blade shaft 2, thereby obtaining the blade running amount.
The working principle of the utility model is as follows:
When the device for measuring the blade running amount of the through-flow unit is used, the blade running amount of the through-flow unit is arranged on the rotary wheel body 1, then the blade shaft 2 is driven by the first driving structure 30 to reset the blade shaft 2, at the moment, the blade shaft 2 is positioned at the initial position, namely the position where no running occurs, then the dial indicator 20 is zeroed, the first driving structure 30 is loosened after zeroing (note that the dial indicator is not touched in the loosening process), then the connecting screw 402 is screwed into the blade shaft 2, then one end of the second driving structure 400 is contacted with the mounting assembly 10, then the fixed disc 403 is moved to be contacted with the other end of the second driving structure 400, and is locked by the locking nut 404 and is contacted with the blade shaft 2, then the fixed disc 403 is driven by the second driving structure 400, and then the connecting screw 402 is pulled, and the blade shaft 2 is pulled to be moved to the position where the running occurs again, at the moment, namely the blade running amount is obtained by the reading of the dial indicator 20.
The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (10)
1. A through-flow unit blade movement measuring device, comprising:
A mounting assembly (10), the mounting assembly (10) being mountable on the runner body (1);
The dial indicator (20), the dial indicator (20) can be installed on the runner body (1), and is used for measuring the blade running amount;
The first driving structure (30) is arranged on one side of the mounting assembly (10), and one end of the first driving structure (30) can be contacted with the blade shaft (2) for driving the blade shaft (2);
The second driving assembly (40), the second driving assembly (40) comprises a pair of second driving structures (400) and a pair of connecting pieces (401), the connecting pieces (401) are matched and arranged at two ends of the other side of the installation assembly (10), and the second driving structures (400) are respectively matched and arranged with the connecting pieces (401) and are used for driving the connecting pieces (401);
Wherein, connecting piece (401) include connecting screw (402), fixed disk (403) and lock nut (404), connecting screw (402) one end and paddle axle (2) threaded connection, fixed disk (403) cover are established on connecting screw (402), lock nut (404) cover is established at the connecting screw (402) other end, and with connecting screw (402) threaded connection, lock nut (404) are located fixed disk (403) one side, and be used for restricting the removal of fixed disk (403), second drive structure (400) one end and installation component (10) contact, the other end and fixed disk (403) opposite side contact.
2. The through-flow unit blade movement measuring device according to claim 1, characterized in that the first driving structure (30) is an ultra-thin hydraulic jack, and the output end of the first driving structure (30) can be contacted with the blade shaft (2) for driving the blade shaft (2).
3. The through-flow unit blade movement measuring device according to claim 2, characterized in that the second driving structure (400) is a hollow hydraulic jack, the second driving structure (400) is sleeved on the connecting screw (402), the output end of the second driving structure (400) can be contacted with the mounting assembly (10), and the other end of the second driving structure can be contacted with the fixing disc (403).
4. A through-flow unit blade movement measuring device according to claim 3, characterized in that the mounting assembly (10) comprises a mounting plate (100) and a plurality of fixing pieces (101), the fixing pieces (101) are arranged on the outer side of the mounting plate (100) in a matched mode, one ends of the fixing pieces (101) are fixedly connected with the mounting plate (100), and the other ends of the fixing pieces are detachably connected with the rotating wheel body (1).
5. The through-flow unit blade movement measuring device according to claim 4, wherein the mounting plate (100) is provided with an arc-shaped mounting seat (102) at one side, and the first driving structure (30) is arranged in the arc-shaped mounting seat (102).
6. The through-flow unit blade play measuring device according to claim 5, wherein the number of the fixing pieces (101) is two or four, when the number of the fixing pieces (101) is two, the two fixing pieces (101) are respectively located at two sides of the mounting plate (100), and when the number of the fixing pieces (101) is four, the four fixing pieces (101) are arranged on the mounting plate (100) in a circumferential array with the circumference of the mounting plate (100).
7. The through-flow unit blade movement measuring device according to claim 6, wherein the fixing piece (101) comprises an arc-shaped fixing block (103) and a pair of connecting rods (104), one end of each connecting rod (104) is fixedly connected with the mounting plate (100), the other end of each connecting rod is fixedly connected with the arc-shaped fixing block (103), a yielding notch (105) is formed between each connecting rod (104), one end of the connecting screw (402) can penetrate through the yielding notch (105) to be in threaded connection with the blade shaft (2), the connecting screw (402) is in clearance fit with the yielding notch (105), and the arc-shaped fixing block (103) and the rotating wheel body (1) can be detachably connected through bolts.
8. The through-flow unit blade movement measuring device according to claim 7, wherein a circular fixing block (106) is arranged on the pair of connecting rods (104), a through hole (107) is arranged on the circular fixing block (106), the through hole (107) is matched with the yielding notch (105), one end of the connecting screw (402) can penetrate through the through hole (107) and is in clearance fit with the through hole (107), one end of the second driving structure (400) is contacted with the circular fixing block (106), and the other end of the second driving structure is contacted with the fixing disc (403).
9. The through-flow unit blade movement measuring device according to claim 8, wherein the circular fixing block (106) is provided with an arc-shaped placing table (108) which is matched with the second driving structure (400), and the second driving structure (400) can be placed on the arc-shaped placing table (108).
10. The through-flow unit blade movement measuring device according to claim 9, wherein the dial indicator (20) comprises an indicator body (200) and a magnetic indicator seat (201) for mounting the indicator body (200), the indicator body (200) is mountable on the magnetic indicator seat (201), and the magnetic indicator seat (201) is mountable on the rotor body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422938877.7U CN223332290U (en) | 2024-11-29 | 2024-11-29 | Blade channeling amount measuring device of tubular turbine unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422938877.7U CN223332290U (en) | 2024-11-29 | 2024-11-29 | Blade channeling amount measuring device of tubular turbine unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223332290U true CN223332290U (en) | 2025-09-12 |
Family
ID=96976587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422938877.7U Active CN223332290U (en) | 2024-11-29 | 2024-11-29 | Blade channeling amount measuring device of tubular turbine unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223332290U (en) |
-
2024
- 2024-11-29 CN CN202422938877.7U patent/CN223332290U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215952748U (en) | Measuring device for detecting vibration of steam turbine | |
| CN111044277A (en) | Fault diagnosis system and method for pump station unit | |
| CN108507437B (en) | Detection device for tangential movement of aircraft engine turbine blades | |
| CN223332290U (en) | Blade channeling amount measuring device of tubular turbine unit | |
| CN222124202U (en) | A clearance detection mechanism for slewing bearing | |
| CN221037222U (en) | Be used for tooth axle internal spline footpath to jump detection device | |
| CN114337158A (en) | Centering device for main pump and main pump motor of nuclear power station | |
| CN221173230U (en) | Axial activity measuring device for aero-engine bearing | |
| CN218006093U (en) | A rotor dynamic balance loading position measuring device | |
| TWI749761B (en) | Testing device of starting torque for slewing ring and the method thereof | |
| CN222258094U (en) | Large air compressor wheel centering measurement device | |
| CN219531918U (en) | Hydroelectric set generator rotor overhauls survey circle device | |
| CN223376545U (en) | Roundness measuring device for water turbine rotor | |
| CN115164666A (en) | Motor shaft tooth jumping checking fixture | |
| CN210775530U (en) | Proximity switch distance-adjusting module of large hydroelectric generating set speed measuring device | |
| CN220490872U (en) | Three-phase motor loading lifting platform device | |
| CN209978802U (en) | A device for detecting the coaxiality of key dimensions of an electric wheel vehicle wheel motor body | |
| CN222912708U (en) | Movable guide vane end face gap monitoring device | |
| CN222298673U (en) | A motor front end cover end face runout detection device | |
| CN212058558U (en) | Post insulator geometric tolerances detection device | |
| CN222895760U (en) | An RVDT angle adjustment tool | |
| CN221302187U (en) | Axial clearance measuring device for dynamic and static discs of electric vortex compressor | |
| CN218822005U (en) | Be used for bar detector of beating | |
| CN223678360U (en) | Radial runout detection device for inner and outer rings of self-aligning roller bearing | |
| CN218822121U (en) | Detection device for simultaneously measuring concentricity and verticality |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |