CN218727390U - Probe simulation rotating device of main pump rotating speed sensor - Google Patents
Probe simulation rotating device of main pump rotating speed sensor Download PDFInfo
- Publication number
- CN218727390U CN218727390U CN202222496020.5U CN202222496020U CN218727390U CN 218727390 U CN218727390 U CN 218727390U CN 202222496020 U CN202222496020 U CN 202222496020U CN 218727390 U CN218727390 U CN 218727390U
- Authority
- CN
- China
- Prior art keywords
- main pump
- probe
- speed sensor
- mounting
- main shaft
- 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
Images
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
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a probe simulation rotating device of a main pump rotating speed sensor, which is used for simulating the rotation of a probe on a main shaft of a main pump, and comprises a mounting component and a probe simulator; the periphery with the main pump main shaft is located to the installation component ring, and the probe simulator includes setting element, base, adjusting part, and the setting element is installed on the adjusting part, and adjusting part movable mounting is on the base for order about the setting element along the radial and axial displacement of main pump main shaft, with the probe location, base slidable mounting is on the installation component, is used for driving the setting element and slides along the installation component. The probe simulator can follow the installation component and do circular rotation around the main pump main shaft, and probe and simulation rotating device produce relative rotation, and the simulation probe rotates, judges whether the location of probe is accurate, and this process is gone on under the main pump main shaft shut down state, has promoted efficiency.
Description
Technical Field
The utility model relates to a nuclear power field, more specifically say, relate to a main pump speed sensor probe simulation rotating device.
Background
The reactor coolant pump of the nuclear power plant is called a main pump for short, and the function of the main pump is to enable the coolant to form forced circulation, so that heat energy generated in the reactor is transmitted to a steam generator to generate steam to drive a steam turbine to do work. In order to ensure the normal operation of the main pump, the operation state of the main pump needs to be monitored, wherein the operation speed of the main pump can be effectively monitored by adopting the main pump speed sensing device.
Main pump rotational speed sensing device generally adopts the magnetic resistance formula principle of measuring, for the design of U type groove, mainly includes two parts, probe and tachometric sensor, wherein, the probe is fixed on the main shaft of main pump to can rotate along with the main pump main shaft, tachometric sensor is fixed in on the external support, and this tachometric sensor is in quiescent condition, can produce a pulse signal when the main pump main shaft rotates and drives probe cutting main pump tachometric sensor, can realize the measurement of main pump rotational speed through measuring this signal.
Because need carry out the dismouting to main pump rotational speed sensing device during at every turn reloading, lead to the probe after the installation to have certain gradient, can influence rotational speed measurement's accuracy and stability to a certain extent.
After the probe is positioned, the position of the probe needs to be confirmed, and the probe is ensured not to be inclined. In the process of confirming the position of the probe, the main pump main shaft generally needs to be rotated, so that the main pump main shaft needs to be started and stopped frequently in the confirming process, the efficiency is reduced, and certain impact risk exists.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned problem that needs adjustment installation under the main pump main shaft rotation condition of prior art, provide a main pump revolution speed sensor probe simulation rotating device.
The utility model provides a technical scheme that its technical problem adopted is: constructing a main pump rotating speed sensor probe simulation rotating device for simulating the rotation of a probe on a main pump main shaft, wherein the simulation rotating device comprises a mounting assembly and a probe simulator;
the mounting assembly is annularly arranged on the periphery of the main pump main shaft;
the probe simulator comprises a positioning piece, a base and an adjusting piece, wherein the positioning piece is installed on the adjusting piece, and the adjusting piece is movably installed on the base and used for driving the positioning piece to move along the radial direction and the axial direction of the main pump main shaft so as to be positioned with the probe;
the base is slidably mounted on the mounting assembly and used for driving the positioning piece to slide along the mounting assembly.
In some embodiments, the mounting assembly comprises an annular enclosure for detachable connection with an outer ring of the main pump main shaft, and mounting feet connected with the annular enclosure and extending towards an inner ring of the annular enclosure, the mounting feet for detachable connection with an end face of the main pump main shaft;
the annular enclosure and/or the mounting feet are used for being magnetically connected with the main pump main shaft.
In some embodiments, the annular enclosure includes at least two segments of arc-shaped enclosing platforms distributed along the circumferential direction, the enclosing platforms are spliced into a circular ring shape along the circumferential direction, and each enclosing platform is provided with at least one of the mounting feet.
In some embodiments, the mounting feet are of unitary construction with the annular enclosure.
In some embodiments, the annular enclosure and the mounting feet are provided with mounting grooves for mounting the magnets.
In some embodiments, the mounting assembly is provided with a guide structure for allowing the probe simulator to rotate circularly around the axis of the main pump main shaft along the mounting assembly.
In some embodiments, the adjuster is magnetically positioned to the base; and/or the presence of a gas in the gas,
the adjusting piece is embedded on the base.
In some embodiments, the adjusting element includes a first movable seat and a second movable seat, a first guiding structure for guiding the first movable seat is disposed on the base, a second guiding structure for guiding the second movable seat is disposed on the first movable seat, and the positioning element is mounted on the second movable seat;
the guide directions of the first guide structure and the second guide structure are vertical, one guide structure is used for guiding along the axial direction of the main pump main shaft, and the other guide structure is used for guiding along the radial direction of the main pump main shaft.
In some embodiments, the first guide structure is a guide slot and/or rail and the second guide structure is a guide slot and/or rail.
In some embodiments, the base is provided with a positioning surface matched with the outer wall surface of the main pump main shaft;
the positioning surface is an arc surface and is matched with the outer wall surface of the main pump spindle in shape.
Implement the utility model discloses a main pump speed sensor probe simulation rotating device has following beneficial effect: the probe simulator can be followed the installation component and be circular rotation around the main pump main shaft, produces relative rotation between probe and the simulation rotating device that makes, simulates the probe and rotates, utilizes the relative position when rotating between the two to judge whether the location of probe is accurate, this process can go on under the main pump main shaft shut down state, has promoted efficiency.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic view of an assembly structure of a main pump main shaft, a probe, a mounting assembly, a probe simulator and a rotation speed sensor in an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the main pump spindle, probe, mounting assembly, probe simulator, and speed sensor of FIG. 1, as assembled;
FIG. 3 is an exploded schematic view of the main pump spindle, probe, mounting assembly, probe simulator, and rotational speed sensor of FIG. 1;
FIG. 4 is an assembled schematic view of the base, adjustment member, and pan/tilt head of the probe simulator of FIG. 4;
FIG. 5 is a schematic diagram of the position of the probe and the rotational speed sensor of FIG. 1;
FIG. 6 is a schematic view of the probe and positioning member of FIG. 1;
FIG. 7 is a schematic view of the probe, the rotational speed sensor and the positioning member shown in FIG. 1;
fig. 8 is a schematic view of the installation of the revolution speed sensor.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3 below, a main pump rotational speed probe 1 is fixed to a main pump main shaft 2 to be rotatable with the main pump main shaft 2, and the probe 1 is preferably provided on an outer wall surface of the main pump main shaft 2.
In one embodiment of the present application, a main pump tachometer sensor probe positioning apparatus is constructed that includes a mounting assembly 31 and a probe simulator 32.
The probe simulator 32 comprises a positioning part 321, a base 322 and an adjusting part 323, wherein the positioning part 321 is provided with a positioning head B, the positioning part 321 is arranged on the base 322, and the adjusting part 323 is used for driving the positioning part 321 to move on the base 322 along the axial direction and the radial direction of the main pump spindle 2, so that the positioning part 321 can abut against the end part and the side wall of the probe 1.
In this embodiment, in order to position the end portion, the bottom surface, and the top surface of the probe 1 conveniently, the positioning head B is L-shaped, and includes a first section and a second section that are bent in sequence, the first section B1 can abut against the end portion of the probe 1, and the second section B2 can abut against the side wall of the probe 1, and generally, the two side surfaces of the inner side of the included angle of the positioning head 3211 can position the end portion and the bottom surface of the probe 1, or position the end portion and the top surface of the probe 1, respectively.
The L-shaped positioning head 3211 has regular appearance and easily controlled size, and can improve the positioning accuracy of the probe 1. In other embodiments, the positioning head 3211 of the positioning element 321 may also be formed in other shapes, and a first positioning area B1 and a second positioning area B2 may be formed on the positioning head 3211, where the first positioning area B1 positions the end of the probe 1, and the second positioning area B2 positions the bottom surface or the top surface of the probe 1. The first positioning area B1 and the second positioning area B2 can be planes, curved surfaces or pointed structures. Of course, the positioning head 3211 may also be U-shaped, and three surfaces in the U-shaped opening can position the end, bottom, and top surfaces of the probe 1, respectively.
The positioning member 321 is made of 316 stainless steel material, and the processing precision is 5um.316 stainless steel materials, rust prevention, corrosion prevention, high strength and bump prevention; the design of parts is minimized, and the assembly error inside the component is eliminated; the design of miniaturization, high precision and high reliability is realized.
The positioning head B positions the end of the probe 1, and the bottom surface of the probe 1, respectively, while the probe simulator 32 moves in the axial and radial directions of the main pump spindle 2.
Of course, the positioning head B may position the end of the probe 1 and the top surface of the probe 1, or position the end of the probe 1 and the top and bottom surfaces of the probe 1.
By adopting the positioning head B, the relative position of the probe 1 and the main pump spindle 2 can be determined after the relative positions of the probe 1 and the positioning piece 321 are positioned under the cold shutdown condition, the structure is simple, the positioning mode is simple, convenient and quick, and the positioning efficiency is improved.
In some embodiments, the mounting assembly 31 is disposed around the main pump main shaft 2 for positioning with the end face and the outer ring of the main pump main shaft 2, forming a fixed positioning reference relative to the main pump main shaft 2, and providing a positioning reference for mounting the probe simulator 32.
The probe simulator 32 is slidably mounted on the mounting assembly 31, and the probe simulator 32 can rotate along the mounting assembly 31 in a circular manner around the axis of the main pump main shaft 2, so as to rotate relative to the probe 1 on the main pump main shaft 2, and can be used as a reference to position the probe 1 when rotating to the position of the probe 1.
In some embodiments, the mounting assembly 31 includes an annular surrounding ring 311 and mounting feet 312, further, the size of the inner ring of the annular surrounding ring 311 is equivalent to the size of the outer ring of the main pump spindle 2, so as to be located on the outer wall surface of the main pump spindle 2, the annular surrounding ring 311 can be used as a reference for the outer wall surface, and in addition, the mounting feet 312 are distributed along the circumferential direction of the annular surrounding ring 311, connected with the annular surrounding ring 311, so as to be located on the end surface of the main pump spindle 2, so that the mounting feet 312 can be used as the location of the end surface of the main pump spindle 2.
The mounting assembly 31 is simultaneously positioned with the outer wall surface and the end surface of the lower end of the main pump spindle 2, so that multidirectional reference can be provided for positioning of the probe simulator 32, and positioning is more accurate. In other embodiments, the mounting assembly 31 may also be positioned with the outer wall surface, end surface, of the upper end of the main pump main shaft 2.
In this embodiment, the annular surrounding ring 311 and the mounting feet 312 are both positioned on the main pump spindle 2 in a magnetic adsorption manner, and of course, in other embodiments, only the annular surrounding ring 311 may be positioned in a magnetic adsorption manner, or only the mounting feet 312 may be positioned in a magnetic adsorption manner, so that it is only necessary to ensure that the mounting assembly 31 is stably and reliably positioned.
In this embodiment, all be equipped with the mounting groove a that supplies magnet installation on annular enclosure 311 and the installation foot 312, there are a plurality of mounting grooves a along the periphery interval distribution on the outer wall of annular enclosure 311, let magnet side direction card go into.
Preferably, the mounting feet 312 extend along the radial direction of the annular surrounding ring 311, so that the mounting feet 312 are distributed more uniformly and stressed more stably.
Further, in this embodiment, the annular surrounding ring 311 includes four arc surrounding tables 3111 distributed along the circumferential direction, each surrounding table 3111 is spliced into a circular ring shape along the circumferential direction, and each surrounding table 3111 is provided with two mounting feet 312.
It is understood that, in other embodiments, the annular surrounding ring 311 may also include two or more segments of other numbers of arc surrounding platforms 3111 distributed along the circumferential direction, each arc surrounding platform 3111 is spliced into an annular shape along the circumferential direction, and the number of the mounting feet 312 on each arc surrounding platform 3111 may also be one or more than one other numbers.
Further, the mounting feet 312 can be integrated with the annular ring 311, and when the annular ring 311 is disposed in segments, the mounting feet 312 can also be integrated with the arc-shaped surrounding table 3111.
Preferably, each arc surrounding table 3111 is a single part, the arc surrounding table 3111 is magnetically attracted to the side surface of the main pump spindle 2, the mounting foot 312 integrally designed with the arc surrounding table 3111 is magnetically attracted to the bottom surface of the main pump spindle 2, the arc surrounding table 3111 is made of 316 stainless steel, the machining precision is 5um, rust and corrosion resistance and high-strength anti-collision performance can be achieved, the number of parts is extremely reduced, and assembly errors inside the parts are eliminated; the design of miniaturization, high precision and high reliability is realized.
Preferably, in order to ensure the mounting accuracy of the mounting assembly 31, the mounting assembly 31 is made of 316 stainless steel which is integrally machined and made of the same material, so that deformation of a large extent in the placing or moving process is avoided.
Preferably, in order to ensure that the movement locus of the probe simulator 32 is accurate, a guide structure for slidably mounting the probe simulator 32 is arranged on the mounting assembly 31, and the probe simulator 32 rotates circularly around the axis of the main pump spindle 2 along the mounting assembly 31, generally, the probe simulator 32 is in sliding fit with the guide structure, so that the probe simulator 32 rotates more smoothly, and the probe simulator 32 ensures that the axial height and radial displacement of the probe simulator 32 change within a controllable range and do not change obviously in the moving process.
Further, the guide structure is detachably mounted on the mounting assembly 31 for easy assembly. In this embodiment, the guide structure is magnetically attracted to the mounting assembly 31, which improves the stability of the attraction. Preferably, the guiding structure is an annular guide rail arranged on the annular surrounding ring 311 along the circumference of the main pump main shaft 2, and in some embodiments, the guiding structure is detachably mounted on the annular surrounding ring 311, but of course, the guiding structure may also be directly formed on the annular surrounding ring 311, such as a guiding groove.
Referring to fig. 1 to 4, the present application also constructs a probe rotation simulating device of a main pump rotation speed sensor, which is used for simulating the rotation of a probe on a main shaft 2 of a main pump.
Further, the simulation rotating device comprises a mounting assembly 31 and a probe simulator 32, wherein the mounting assembly 31 is arranged around the periphery of the main pump main shaft 2.
The probe simulator 32 comprises a positioning member 321, a base 322, and an adjusting member 323, wherein the positioning member 321 is mounted on the adjusting member 323, and the adjusting member 323 is movably mounted on the base 322 for driving the positioning member 321 to move along the radial direction and the axial direction of the main pump spindle 2 to be positioned with the probe.
The base 322 is slidably mounted to the mounting assembly 31 for sliding the positioning member along the mounting assembly. Because the probe simulator 32 can rotate along the mounting assembly 31 in a circular manner around the main pump spindle 2, relative rotation is generated between the probe 1 and the simulated rotation device to simulate the rotation of the probe 1.
The probe simulator 32 of the simulation rotating device rotates relative to the probe 1 on the main pump main shaft 2, the relative probe 1 rotates relatively, the rotation of the probe 1 can be simulated, and the relative position between the probe and the main pump main shaft during rotation is utilized, so that whether the positioning of the probe 1 is accurate or not is judged, the process can be carried out under the shutdown state of the main pump main shaft 2, and the efficiency is improved.
Preferably, the adjusting part 323 is positioned on the base 322 by magnetic adsorption, and further, the adjusting part 323 can be embedded on the base 322 and combined by embedding and adsorption, so that the positioning is accurate and the stability is good. It is understood that the magnetic attraction or embedding mode can be adopted for positioning.
When the magnetic adsorption mode is adopted for positioning, the magnets can be distributed, so that the magnetic attraction force is more uniform and balanced. Further, magnetic adsorption is adopted, and the following effects are achieved:
1. the contact surfaces of the two parts which are magnetically attracted with each other are complete and smooth, so that the interference on the magnetic attraction effect and the movement effect can be eliminated;
2. the magnetic attraction force is uniformly distributed, the size of the magnetic attraction force can be adjusted, the adsorption is reliable, and the installation, the disassembly and the movement of the probe simulator 32 are convenient;
3. on the premise of miniaturization and strength guarantee, the weight of parts can be reduced, and the design of light weight is facilitated.
The base 322 of the probe simulator 32 is also made of 316 stainless steel material, and the processing precision is 5um; the lower end surface of the base 322 and the annular surrounding ring 311 are also installed in a magnetic attraction manner.
The surface of the base 322 matched with the main pump main shaft 2 adopts the fitting design with the circumferential surface of the main pump main shaft 2, the bottom of the base 322 is provided with an embedded, distributed and programmable sheet-shaped magnet bin C corresponding to the circumferential surface of the main pump main shaft 2 and a soft iron belt bin magnetically attracted with the annular surrounding ring 311, and in addition, the embedded sheet-shaped magnet is designed on the annular surrounding ring 311, so that the magnet can not be used any more when the part of the base 322 corresponding to the annular surrounding ring 311 with the requirement of magnetic attraction is adopted, and the soft iron belt is adopted.
In some embodiments, referring to fig. 3 and 4, the adjusting member 323 includes a first movable seat 3231 and a second movable seat 3232, the first movable seat 3231 and the base 322 are movable along an axial direction of the main pump spindle 2, the second movable seat 3232 and the first movable seat 3231 are movable along a radial direction of the main pump spindle 2, and the positioning member 321 is mounted on the second movable seat 3232.
Further, be equipped with on the base 322 and be used for the first guide structure for first movable seat 3231 direction, so that can relative movement between first movable seat and the base, be equipped with on the first movable seat 3231 and be used for the second guide structure for second movable seat 3232 direction, so that can relative movement between second movable seat and the first movable seat, when adjusting first movable seat and second movable seat, thereby can realize the position control of setting element 321, be convenient for adjust the position of setting element 321 in order to fix a position probe 1.
Preferably, the first guide structure guides along the axial direction of the main pump spindle 2, the second guide structure guides along the radial direction of the main pump spindle 2, one guides along the axial direction of the main pump spindle 2, and the other guides along the radial direction of the main pump spindle 2, so that the position adjustment of the positioning member 321 in different directions can be realized, and the adjustment is more accurate and flexible; the second guide structure includes the guide rail that sets up between second sliding seat and second sliding seat, and this guide rail is along main pump main shaft 2's radial extension to make the second sliding seat along main pump main shaft 2's radial reciprocating motion for first sliding seat, thereby drive the radial reciprocating motion of setting element along main pump main shaft 2. In other embodiments, the guiding directions of the first guiding structure and the second guiding structure may also form an included angle, so as to facilitate adjusting the position of the positioning element 321 in different directions.
Of course, in other embodiments, the first guiding structure is a guiding groove, and may also be a combination of a guiding groove and a guiding rail, which can provide stable guiding. Further, the second guide structure is a guide groove, and may also be a combination of a guide groove and a guide rail, so as to provide stable guiding.
The probe simulator 32 further includes a measuring assembly 324, and the measuring assembly 324 further includes a first adjusting member 3241 for driving the first movable seat 3231 to move, and a second adjusting member 3242 for driving the second movable seat 3232 to move, so that when the first movable seat 3231 and the second movable seat 3232 are driven to move, the positioning head 3211 is driven to move.
The first adjusting element 3241 is rotatably disposed on the base and rotatably engaged with the first movable seat, and the second adjusting element 3242 is rotatably disposed on the first movable seat and rotatably engaged with the second movable seat.
The measurement assembly 324 of the probe simulator 32 may optionally be a miniaturized precision stage, typically LE40-L, which may be used to detect the movement displacement of the base 322 and the adjustment member 323, the stage having a range of motion of 10mm.
In this embodiment, the first adjusting member 3241 and the second adjusting member 3242 may be knobs on two pan/tilt heads, respectively, and the position of the positioning member 321 on the adjusting member 323 can be adjusted and moved by rotating the knobs.
The original spiral micrometer of the holder of the measuring assembly 324 is replaced by the digital micrometer DMH-1, the digital micrometer DMH-DL-U is communicated with the display, the digital micrometer with a digital interface is used, the measured value of the multidimensional gap is displayed in a centralized manner, and the first adjusting piece 3241 and the second adjusting piece 3242 can measure the moving displacement of the positioning piece 321 in the adjusting process.
As shown in fig. 4, in order to facilitate the positioning of the simulated rotating device and improve the positioning accuracy, a positioning surface D that is engaged with the outer wall surface of the main pump spindle 2 is provided on the base 322, and the surface of the main pump spindle 2 is used for positioning, so that the reference is stable and the deviation is not likely to occur.
Preferably, the positioning surface D on the base 322 is an arc surface, and is matched with the outer wall surface of the main pump spindle 2 in shape, and the positioning is realized by attaching the positioning surface D to the outer wall surface of the main pump spindle 2. In other embodiments, the positioning surface D on the base 322 may also be provided with a plurality of positioning protrusions, and each protrusion can be attached to the surface of the main pump spindle 2, so as to position the base 322.
Further, the mounting assembly 31 is positioned with the end face and the outer ring of the main pump spindle 2, the base 322 is magnetically adsorbed on the mounting assembly 31, and the base 322 is positioned by the mounting assembly 31, so that the positioning is more stable and reliable.
After the probe simulator 32 finishes positioning the probe 1, the rotation speed sensor 4 can finish detecting the rotation speed of the probe 1.
Generally, the rotation speed sensor 4 adopts a magnetic resistance type measurement principle, a sensing groove 41 is arranged on the rotation speed sensor 4, in this embodiment, the sensing groove 41 is U-shaped, when the probe 1 measures the rotation speed, the sensing groove 41 of the rotation speed sensor 4 is located at one end opposite to the main pump spindle 2, the sensing groove 41 penetrates along the circumferential direction of the main pump spindle 2, preferably, the width of the sensing groove 41 is greater than the thickness of the probe 1, and the probe 1 and the positioning head 3211 for positioning the probe 1 can be clamped in the rotation process and then pass through simultaneously.
Combine fig. 5 to fig. 8 to show, this application has still disclosed a main pump revolution speed sensor timing device for the revolution speed sensor to the main pump main shaft carries out the timing, is provided with probe 1 on the outer wall of main pump main shaft 2, and revolution speed sensor 4 is equipped with along the sensing groove 41 that circumference runs through with the relative one end of main pump main shaft 2, and the sensing groove is used for supplying the probe to rotate and passes through.
The adjusting device comprises a mounting bracket 5 and a probe simulator 32, wherein the mounting bracket 5 is arranged on the main pump shell and is used for mounting a rotation speed sensor 4, and the rotation speed sensor 4 is used for detecting the rotation speed of the probe 1 along with the rotation of the main pump main shaft 2.
Main pump revolution speed sensor 4 is fixed in on installing support 5, is in quiescent condition, and main pump main shaft 2 rotates and can produce a pulse signal when driving probe 1 cutting revolution speed sensor 4, so the main pump normal operating, revolution speed sensor 4 can produce a specific frequency signal, realizes the measurement of main pump rotational speed through this signal measurement.
Preferably, the mounting bracket 5 is mounted on the pump body and supported by the pump body, so that the mounting bracket 5 can be mounted more stably, further, the position of the mounting bracket 5 on the pump body can be adjusted, and further, when the position of the mounting bracket 5 is adjusted, the position of the rotation speed sensor 4 relative to the probe 1 is adjusted.
Probe 1 and positioning head 3211 rotate through the sensing groove, through first regulating part 3241, second regulating part 3242 of adjusting measuring subassembly 324, let positioning head 3211 remove, when removing, measuring subassembly 324 can measure positioning head 3211's removal displacement, obtains the relative position before and after removing, and measuring subassembly 324 obtains positioning head 3211 to the axial inside wall of sensing groove 41, the distance of radial diapire.
Preferably, the position of the rotation speed sensor 4 on the mounting bracket 5 is adjustable, the position of the rotation speed sensor 4 relative to the probe 1 and the positioning part 321 can be adjusted, the relative position between the rotation speed sensor 4 and the probe 1 is accurate, and the requirement that the rotation speed sensor 4 performs normal rotation speed detection on the probe 1 is met.
In some embodiments, the rotation speed sensor 4 is provided with a first mounting hole 42, the first locking element passes through the first mounting hole 42 and then is locked to the mounting bracket 5, and the first locking element is in clearance fit with the first mounting hole 42, so that the rotation speed sensor 4 can be laterally adjusted in position relative to the first locking element, and the rotation speed sensor 4 can meet the requirement of relative position with the probe 1.
Further, in the embodiment, the axial direction of the first mounting hole 42 is the same as the penetrating direction of the sensing groove 41, and due to the clearance fit between the first mounting hole 42 and the first locking part, the rotational speed sensor can be shifted from different sides of the first locking part, so that the rotational speed sensor 4 can be adjusted in position in the horizontal direction and the vertical direction relative to the probe 1, and meanwhile, the swinging direction of the rotational speed sensor 4 can also be adjusted.
Preferably, the mounting bracket 5 is provided with a second mounting hole 51, and the second locking piece passes through the second mounting hole 51 and then is locked on the pump body; clearance fit between second closure and the second mounting hole 51 can let rotational speed sensor 4 adjust the position to the second closure side direction relatively to let rotational speed sensor 4 satisfy with probe 1 between the relative position demand.
Further, in order to realize multidirectional adjustment, an included angle is formed between the axial direction of the first mounting hole 42 and the axial direction of the second mounting hole 51, and the axial direction of the second mounting hole 51 is the same as the axial direction of the main pump spindle 2, so that the position of the rotation speed sensor 4 in the horizontal direction can be adjusted relative to the probe 1, and meanwhile, the swing direction of the rotation speed sensor 4 can also be adjusted.
In general, since the relative position between the main pump speed probe 1 and the main pump speed sensor 4 directly affects the accuracy and stability of the measurement, strict requirements are imposed on the installation of the main pump speed probe 1 and the main pump speed sensor 4.
The main pump rotating speed probe 1 is placed in the middle of a sensing groove 41 of a main pump rotating speed sensor 4 by a main shaft 2 of the disc-driven main pump, and the gap between the main pump rotating speed probe 1 and the sensing groove 41 needs to be measured, wherein the measured gap comprises the upper gap of the sensing groove 41, the lower gap of the sensing groove 41 and the bottom gap between the probe 1 and the sensing groove 41, so that whether the installation standard requirement is met is judged.
Further, another embodiment of the present application further discloses a method for installing a spindle speed sensor 4, which includes the following steps:
circularly rotating the probe simulator 32 around the axis of the main pump spindle 2 to the sensing groove 41 of the rotating speed sensor 4;
adjusting the position of the mounting bracket 5, locking the mounting bracket 5 when the positioning head 3211 and the sensing groove 41 of the probe simulator 32 are in contact with the side surface of the main pump spindle 2 opposite to each other, and obtaining a top gap d of the sensing groove x ；
When the positioning head 3211 contacts the lower side surface of the sensing groove 41, a lower sensing groove gap h is obtained dy ；
When the positioning head 3211 contacts the upper side of the sensing groove 41, a gap h is obtained above the sensing groove uy ；
Confirming a gap h above a sensing groove uy A gap h below the sensing groove dy The requirement is met, otherwise, the upper and lower positions of the rotating speed sensor 4 are adjusted to reach the gap h on the sensing groove uy A gap h below the sensing groove dy After the requirements are met, the mounting bracket 5 is locked.
Further, the gap on the sensing groove satisfies the formula: h is a total of uy ＝Δh uy +h sy -h hy Wherein, Δ h uy For sensing the amount of upward movement of the tank, h sy To locate the height of the vertical edge of head 3211, h hy Is the height of the transverse edge of the positioning head 3211;
the gap requirement on the sensing groove meets the range: h is ub ±h uj Wherein h is ub Mounting a standard value for the gap on the sensing groove, h uj Mounting precision for the upper gap of the sensing groove;
in the adjusting process, if the upper clearance of the sensing groove meets the following requirements: h is ub -h uj ≤h uy ≤h ub +h uj And then the installation of the rotating speed sensor meets the installation requirement.
Further, the sensing under-groove clearance satisfies the formula: h is dy ＝Δh dy +h hy Wherein h is dy For sensingGap under groove, h hy To locate the height of the lateral edge of head 3211, Δ h dy For sensing the tank down-shift amount;
required range of gap under sensing groove: h is db ±h dj Wherein h is db For sensing the installation of a reference value, h, for the gap under the groove dj The accuracy of the installation of the lower gap of the sensing groove is measured;
during the adjustment, if h db -h dj ≤h dy ≤h db +h dj The installation requirements are met.
Further, the vertical side thickness h of the positioning head 3211 sx ＝d b Wherein h is sx To locate the vertical edge thickness of the head 3211, d b Installing a standard value for the top clearance of the sensing groove;
adjusting the second locking piece, when the top plane of the U-shaped sensing groove is contacted with the vertical edge plane of the positioning head 3211, locking the second locking piece, thus ensuring the top clearance d of the sensing groove x ＝d b Realizing the required range d of the top clearance of the sensing groove b ±d j Wherein d is j The mounting requirement is met if the mounting precision of the top clearance of the sensing groove is high;
in the adjusting process, if the height h of the transverse edge of the positioning head 3211 is adjusted hy ＝h db -0.8*h dj Wherein h is db For sensing the installation of a reference value, h, for the gap under the groove dj In order to sense the accuracy of the installation of the gap under the groove,
this height design ensures that the positioning member 321 can normally enter the sensor sensing slot 41, and also ensures that there is 0.2 × h dj The qualified margin meets the installation requirement;
if the height h of the vertical edge of the positioning head 3211 is equal to sy ≥h t The thickness of the probe 1 is h t If the thickness is not less than 4 +/-0.1 mm, the installation requirement is met;
h hy to position the height of the transverse edge of the head 3211, h sy To locate the height of the vertical side of the head 3211, h db For sensing the installation of a reference value, h, for the gap under the groove dj To sense the gap installation accuracy under the slot.
The rotating speed sensor 4 is installed on the installation support 5 through a first locking piece, and the installation support 5 is installed on a main pump body through a second locking piece. The rotation speed sensor 4 can be adjusted to move forwards and backwards through the second locking piece; the sensor can be adjusted to move forwards and backwards, move upwards and downwards and rotate for a certain angle through the first locking piece.
When the locking device is installed, the second locking piece is firstly positioned, and the gap d at the top of the profiled groove is adjusted by the second locking piece x . Sensing the gap h in the groove if the second locking member is positioned uy A gap h below the sensing groove dy And a sensing groove top gap d x And if the requirements of the installation standard are all met, the first locking piece does not need to be adjusted, and if the requirements of the installation standard are not met, the first locking piece needs to be adjusted.
And measuring the gap between the rotating speed sensor 4 and the probe 1, and measuring and confirming the starting state of the platform top shaft oil pump at 2.5 Mpa.
The shape of the measuring part for measurement is the same as the shape and the size of the positioning head 3211 of the positioning part 321, the measuring part is a high-precision workpiece, and the specific size of the measuring part is as follows:
height h of transverse edge of measuring part hy ＝h db -h dj Wherein h is db For sensing the installation of a reference value, h, for the gap under the groove dj The accuracy of the installation of the lower gap of the sensing groove is measured;
height h of vertical edge of measuring part sy ≥h t The thickness of the probe 1 is h t ＝4±0.1mm；
Thickness h of vertical edge of measuring piece sx ＝d b -d j Wherein d is b For sensing the tank top clearance mounting reference value, d j The top gap of the groove is sensed and installed with precision.
Specifically, the method comprises the following measuring steps:
turning a main pump spindle 2, and rotating a probe 1 to a sensing groove 41 of a rotating speed sensor 4;
moving the measuring part around the main pump spindle 2 along the guide mechanism of the annular enclosure 311, and moving the measuring part to the rotating speed sensor 4;
using a high-precision two-dimensional moving device to make the top of the probe 1 contact with the inner plane of the vertical edge of the measuring part, and making the lower plane of the probe 1 contact with the upper plane of the transverse edge of the measuring part to obtain the datum location of the measuring part;
when the plane of the U-shaped top is in contact with the outer plane of the vertical edge of the measuring part, the top gap of the sensing groove is obtained;
a high-precision two-dimensional moving device is used for contacting the lower plane of the transverse edge of the measuring part with the lower plane of the sensing groove 41 to obtain a lower gap of the sensing groove;
and (3) using a high-precision two-dimensional moving device to make the upper plane of the measuring piece and the upper plane of the sensing groove 41 contact to obtain the gap on the sensing groove.
The measuring part is arranged on the high-precision two-dimensional moving device, so that the movement in the two-dimensional directions of the x axis and the y axis is realized, and meanwhile, the high-precision measurement is carried out on the movement amount.
The reference speed sensor 4 is calibrated, and similarly, the gap h on the sensing groove uy ＝Δh uy +h sy -h hy Wherein, Δ h uy For sensing the amount of up-shift of the tank, h sy To locate the height of the vertical edge of head 3211, h hy Is the height of the transverse edge of the positioning head 3211;
required range of gap on sensing groove: h is ub ±h uj Wherein h is ub For sensing the gap in the tank, a reference value, h uj The gap installation precision on the sensing groove is measured;
if h ub -h uj ≤h uy ≤h ub +h uj If the installation requirement is met, displaying green on the display picture, otherwise, displaying red.
Sensing the gap h under the groove dy ＝Δh dy +h hy Wherein h is dy For sensing the gap under the groove, h hy To position the height of the lateral edge of head 3211, Δ h dy For sensing the tank down-shift amount;
required range of gap on sensing groove: h is db ±h dj Wherein h is db For sensing the installation of a reference value, h, for the gap under the groove dj The accuracy of the installation of the lower gap of the sensing groove is measured;
if h db -h dj ≤h dy ≤h db +h dj If the installation requirement is met, displaying green on the display picture, otherwise, displaying red.
Sensing groove top gap d x ＝h sx +Δd x ；
Required range of top gap of sensing groove: d b ±d j Wherein h is sx To locate the vertical edge thickness of the head 3211, d b For sensing the tank top clearance mounting reference value, d j The mounting precision of the top clearance of the sensing groove is measured;
if d is b -d j ≤d x ≤d b +d j If the installation requirement is met, displaying green on the display picture, otherwise, displaying red.
Wherein the sensor slot is moved up by an amount Δ h uy The amount of groove down movement Δ h dy The advancing amount of the top gap of the sensing groove Deltad x 。
Has the following innovation points:
(1) the adjusting device has the characteristics of miniaturization, light weight, collision prevention, rust prevention, corrosion prevention, simple and easy field operation, extremely small part number, high precision and high reliability.
(2) The adjusting device and the displacement sensor have no mechanical interference, and the adjusting device, the probe 1 and the rotating speed sensor 4 have no mechanical interference.
(3) Under the cold condition of shutting down, probe 1 is in any position on the main shaft, and the timing device only needs once simply to install, just can realize fast that main pump main shaft 2 rotates the simulation, carries out real-time high accuracy synchronous measurement to probe 1 and sensing groove top clearance, upper gap and lower clearance to can present with the digital display form, adopt green sign if data is qualified, adopt red sign if data is unqualified, realize rotational speed sensor 4 timing installation.
(4) The surrounding table 3111 is designed in an integrated manner with 4 sections, and each section is a single part; the probe simulator 32 employs a single part design; the number of parts is reduced, the assembly error in the part is eliminated, and the design of miniaturization, high precision and high reliability is realized; 316, anti-collision, rust-proof and corrosion-proof.
(5) The adjusting device does not need any tool during field installation and disassembly; the side surfaces of the integrally designed surrounding table 3111 and the main shaft with 4 petals and the bottom feet of the integrally designed surrounding table 3111 and the bottom surface of the main shaft adopt a magnetic attraction mode; the holder base and the main shaft of the measuring component 324 with 2 degrees of freedom in the axial and radial directions and the surrounding table 3111 are magnetically attracted; the magnetic attraction adopts a magnet embedded, distributed and programmable design scheme.
(6) In the research and development process of the adjusting device, the main shaft simulation debugging rack is made of the same material as the main shaft, and the magnetic attraction force between the enclosing table 3111 and the side surface of the main shaft and between the bottom foot of the enclosing table 3111 and the bottom surface of the main shaft in the integrated design is proper, uniform in magnetic attraction distribution, convenient to assemble and disassemble and reliable in adsorption by adjusting the magnetic force design of the sheet-shaped magnets and the quantity and distribution of the sheet-shaped magnets; the force of the magnetic attraction between the holder base of the measuring component 324 and the side surface of the main shaft and the surrounding table 3111 is proper, the magnetic attraction distribution is uniform, the mounting, dismounting and moving are convenient, and the adsorption is reliable. The contact surfaces of the magnetic attraction are not provided with open holes and grooves, and are complete and smooth.
The installation adjusting window of the multi-base nuclear power unit main pump rotating speed sensor 4 is a platform with a loop pressure of 2.5Mpa, and the platform works on the main line path of the refueling overhaul, so that the refueling overhaul period and the unit generating capacity are directly influenced; if the nuclear power generating set is optimized and adjusted to a cold state window, namely a loop pressure 0Mpa platform is used, the main line time for refueling and overhaul can be saved by about 3 hours, the generating capacity of the nuclear power generating set is effectively improved, and the economic and social benefits are remarkable.
The device and the method for adjusting the main pump rotating speed sensor in the cold shutdown condition are researched, the main pump rotating speed sensor 4 is adjusted under the cold shutdown condition, the production process is optimized and improved, and great production value can be created. Meanwhile, the existing method for calibrating the rotating speed sensor of the main pump has universality for domestic multi-base nuclear power units and foreign French EDF nuclear power units, research results have obvious reference and reference significance, and the method has wide popularization and use values.
It is to be understood that the above-described respective technical features may be used in any combination without limitation.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A main pump rotating speed sensor probe simulation rotating device is used for simulating the rotation of a probe (1) on a main pump spindle (2), and is characterized by comprising a mounting assembly (31) and a probe simulator (32);
the mounting assembly (31) is arranged on the periphery of the main pump spindle (2) in a surrounding mode;
the probe simulator (32) comprises a positioning part (321), a base (322) and an adjusting part (323), wherein the positioning part (321) is installed on the adjusting part (323), and the adjusting part (323) is movably installed on the base (322) and used for driving the positioning part (321) to move along the radial direction and the axial direction of the main pump spindle (2) so as to be positioned with the probe (1);
the base (322) is slidably mounted on the mounting assembly (31) and used for driving the positioning piece (321) to slide along the mounting assembly (31).
2. The main pump speed sensor probe analog rotary device of claim 1,
the mounting assembly (31) comprises an annular surrounding ring (311) and mounting feet (312), the annular surrounding ring (311) is used for being detachably connected with the outer ring of the main pump main shaft (2), the mounting feet are connected with the annular surrounding ring (311) and extend towards the inner ring of the annular surrounding ring (311), and the mounting feet are used for being detachably connected with the end face of the main pump main shaft (2);
the annular surrounding ring (311) and/or the mounting feet (312) are used for magnetic connection with the main pump main shaft (2).
3. The main pump speed sensor probe simulation rotating device as claimed in claim 2, wherein the annular surrounding ring (311) comprises at least two segments of arc surrounding platforms (3111) distributed along a circumferential direction, the surrounding platforms (3111) are spliced into a circular ring shape along the circumferential direction, and each surrounding platform (3111) is provided with at least one mounting foot (312).
4. The main pump tach sensor probe analog rotary device of claim 2 characterized in that the mounting feet (312) are of unitary construction with the annular enclosure (311).
5. The main pump tacho sensor probe analogue rotating device of claim 2, wherein the annular enclosure (311) and the mounting feet (312) are provided with mounting slots (a) for mounting magnets.
6. A main pump speed sensor probe analogue rotating device according to claim 1, characterized in that said mounting assembly (31) is provided with a guiding structure for said probe simulator (32) to make a circular rotation around the axis of the main pump main shaft (2) along said mounting assembly (31).
7. The main pump speed sensor probe analog rotary device of any one of claims 1 to 6, characterized in that the adjustment member (323) is magnetically positioned to the base (322); and/or the presence of a gas in the gas,
the adjusting piece (323) is embedded on the base (322).
8. The device for simulating the rotation of the probe of the revolution speed sensor of the main pump according to claim 6, wherein the adjusting member (323) comprises a first movable seat (3231) and a second movable seat (3232), a first guiding structure for guiding the first movable seat (3231) is arranged on the base (322), a second guiding structure for guiding the second movable seat (3232) is arranged on the first movable seat (3231), and the positioning member (321) is installed on the second movable seat (3232);
the guide directions of the first guide structure and the second guide structure are vertical, one guide structure is used for guiding along the axial direction of the main pump main shaft (2), and the other guide structure is used for guiding along the radial direction of the main pump main shaft (2).
9. The main pump speed sensor probe analog rotary device of claim 8, wherein the first guide structure is a guide slot and/or rail and the second guide structure is a guide slot and/or rail.
10. The main pump speed sensor probe analog rotation device as claimed in claim 6, wherein a positioning surface (D) matched with the outer wall surface of the main pump spindle (2) is arranged on the base (322);
the positioning surface (D) is an arc surface and is matched with the outer wall surface of the main pump spindle (2) in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222496020.5U CN218727390U (en) | 2022-09-20 | 2022-09-20 | Probe simulation rotating device of main pump rotating speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222496020.5U CN218727390U (en) | 2022-09-20 | 2022-09-20 | Probe simulation rotating device of main pump rotating speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218727390U true CN218727390U (en) | 2023-03-24 |
Family
ID=85636170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222496020.5U Active CN218727390U (en) | 2022-09-20 | 2022-09-20 | Probe simulation rotating device of main pump rotating speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218727390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024061291A1 (en) * | 2022-09-20 | 2024-03-28 | 中广核核电运营有限公司 | Adjustment apparatus and adjustment method |
-
2022
- 2022-09-20 CN CN202222496020.5U patent/CN218727390U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024061291A1 (en) * | 2022-09-20 | 2024-03-28 | 中广核核电运营有限公司 | Adjustment apparatus and adjustment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106768994B (en) | Multi-physical-field composite loading electric spindle reliability test device | |
| EP2498047B1 (en) | Surface texture measuring apparatus | |
| CN218727390U (en) | Probe simulation rotating device of main pump rotating speed sensor | |
| CN111564939B (en) | Method for centering center of circle measuring frame of rotor of vertical shaft umbrella type hydraulic generator | |
| WO2024061291A1 (en) | Adjustment apparatus and adjustment method | |
| CN104354135A (en) | Five-degree-of-freedom adjustment positioning method and device for assembling/measuring rotor and stator of aero-engine | |
| CN205079718U (en) | Drum class part outline geometric tolerances measuring instrument | |
| CN105527460B (en) | Testing device of speed sensor and its measurement method | |
| CN211178310U (en) | Comprehensive measuring platform for engine rotor | |
| CN106595433A (en) | Measurement method and apparatus for radial runout of bearing inner ring | |
| CN105203005A (en) | Cylinder part outer contour geometric tolerance measuring instrument | |
| CN113959306B (en) | Adjustable stator blade installation angle measuring device and method and axial-flow compressor | |
| CN107843424A (en) | A kind of harmonic reduction machine detecting device and its control method | |
| CN115598369A (en) | Probe positioning device of main pump rotating speed sensor | |
| CN208795162U (en) | A kind of five-axle linked blade Spectral Confocal measuring device | |
| CN105598534A (en) | On-machine detection device and detection method of worm gear pair transmission precision | |
| CN108955593A (en) | Bearing internal external circle dimension automatic detection device | |
| CN110514103A (en) | A kind of processing centerline hole offset detector and detection method | |
| CN109205248A (en) | Circular saw prints feeding servo positioning system | |
| CN108957032A (en) | A kind of speed probe dynamic measuring signal source generating means | |
| CN112108941A (en) | Device and method for detecting positioning precision and repeated positioning precision of triple fluted disc of numerical control tool rest | |
| CN113847878B (en) | Surface difference measuring equipment and measuring method for appearance part of excavator | |
| CN210160654U (en) | Single-shaft servo displacement rotary table | |
| CN208672673U (en) | A kind of speed probe dynamic measuring signal source generating means | |
| CN208443866U (en) | A kind of speed probe dynamic measuring signal source generating means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |