CN212988255U - Main valve core displacement measuring device - Google Patents
Main valve core displacement measuring device Download PDFInfo
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- CN212988255U CN212988255U CN202021755287.6U CN202021755287U CN212988255U CN 212988255 U CN212988255 U CN 212988255U CN 202021755287 U CN202021755287 U CN 202021755287U CN 212988255 U CN212988255 U CN 212988255U
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Abstract
The utility model discloses a displacement measuring device for a main distribution valve core, which comprises a connecting component, a measuring component and an installation component, wherein the connecting component is connected with the valve core of a main distribution valve, the measuring component is connected with the connecting component, and the installation component is connected with the measuring component; the mounting seat comprises a supporting plate, a fixing plate, a movable plate and a fastening bolt, the supporting plate comprises a first transverse plate, a second transverse plate and a vertical plate, the first transverse plate is connected with the measuring component, the first transverse plate and the second transverse plate are respectively connected with the vertical plate, a through hole A is formed in the vertical plate, a through hole C is formed in the fixing plate, and the fastening bolt is connected with the fixing plate and the vertical plate; the adjustable nut sleeve is characterized by further comprising an adjusting assembly, the adjusting assembly is connected with the fixed plate, the first screw and the second screw of the adjusting assembly are screwed in or out of the nut sleeve, an included angle between the fixed plate and the movable plate can be adjusted, and the installation adaptability of the adjustable nut sleeve is improved.
Description
Technical Field
The utility model relates to a displacement sensing technical field is a main case displacement measurement device that joins in marriage particularly.
Background
The main distributing valve is a power level hydraulic amplifier of a hydraulic system of a hydraulic turbine governor, amplifies mechanical displacement or hydraulic control signals of the electro-hydraulic converter into hydraulic signals which are proportional to the hydraulic signals in the corresponding direction and meet the flow requirement of the servomotor, and controls the servomotor to be opened or closed. The main distributing valve pushes the servomotor to further push the guide vane at the water inlet of the water turbine so as to control the water inlet flow of the water turbine and achieve the purpose of controlling the rotating speed of the water turbine. In the control process of the main distributing valve, a main distributing valve displacement signal (namely an axial displacement signal of a core element of the main distributing valve) needs to be introduced into an electric system of the water turbine speed regulator to form closed-loop control.
Most of related mechanisms for monitoring the motion of the main valve core in the prior art are complex in structure and high in cost, and meanwhile, the monitoring results are large in fluctuation due to error accumulation caused by installation between the structures, and the accuracy is reduced.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention is directed to: the main valve core displacement measuring device is simple and reliable in mounting structure and high in adaptability.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
a displacement measuring device for a main distribution valve core comprises a connecting assembly, a measuring assembly and a mounting assembly, wherein the connecting assembly is connected with the valve core of a main distribution valve and used for converting the movement of the main distribution valve into the movement of the connecting assembly;
the mounting assembly comprises a support plate, a fixed plate, a movable plate and a fastening bolt, the support plate comprises a first transverse plate, a second transverse plate and a vertical plate, the first transverse plate is connected with the measuring assembly, the first transverse plate and the second transverse plate are respectively connected with the vertical plate, a through hole A is formed in the vertical plate, a through hole C is formed in the fixed plate, and a screw rod of the fastening bolt penetrates through the through hole A and the through hole C to connect the fixed plate and the vertical plate;
still include adjusting part, adjusting part includes nut cover, first threaded rod, second threaded rod, one side of fixed plate with one side of fly leaf is articulated, the one end of first threaded rod, second threaded rod respectively with the nut cover passes through threaded connection, the other end of first threaded rod, second threaded rod respectively with fixed plate, fly leaf are articulated.
Furthermore, a through hole B is formed in the second transverse plate, and the inner diameter of the through hole B is larger than or equal to that of the through hole C.
Furthermore, coupling assembling includes guide bar, transfer line, the guide bar is connected with the case of main distribution valve, transfer line one end with the guide bar is connected, the other end with the measurement subassembly is connected, the guide bar with the contained angle is greater than zero between the transfer line.
Further, the measuring component comprises a slide rail, a slide block matched with the slide rail, a sensor, a processor and a converter, the slide block moves along the slide rail, the slide block is made of a permanent magnet, the transmission rod is connected with the slide block, the sensor is connected with the slide rail and used for measuring the displacement of the slide block, the sensor, the processor and the converter are electrically connected, the processor is used for processing the measuring data of the sensor and transmitting the measuring data to the converter, and the converter is used for converting the data of the sensor into an electric signal.
Furthermore, reinforcing ribs are arranged at the joints of the first transverse plate and the vertical plate and the joints of the second transverse plate and the vertical plate.
Further, the sensor is a non-contact sensor.
Compared with the prior art, the utility model, following beneficial effect has:
1. through will first screw rod, the second screw rod screw in of adjusting part or back-out the nut cover can be adjusted the fixed plate with the contained angle between the fly leaf increases the installation adaptability of this device, through will the fly leaf is fixed in installation department can be fixed this device, convenient and fast.
2. The main distributing valve core can directly drive the guide rod to move when moving, the drive rod drives the slider magnet to move, the corresponding sensor signal output changes, and then the LCU of the matching unit can realize the monitoring of the movement condition of the main distributing valve core, the whole structure is simple and effective, and the error probability is reduced.
3. Through with fastening bolt follows take out in through-hole A, the through-hole C, will through-hole C on the fixed plate with through-hole B on the second diaphragm aligns, will fastening bolt inserts in through-hole B, the through-hole C, make the second diaphragm with the fixed plate is connected, can adjust measuring subassembly, coupling assembling are relative the position of installation component increases device adaptability.
Drawings
FIG. 1 is a side view of the main valve core displacement measuring device of the present invention;
FIG. 2 is an enlarged view of the point A of FIG. 1;
FIG. 3 is a top view of the main valve core displacement measuring device of the present invention;
fig. 4 is a schematic view of the connection between the second cross plate and the fixing plate.
List of reference numerals
The device comprises a fixed plate 1, a movable plate 2, a second transverse plate 3, a first transverse plate 4, a vertical plate 5, a guide rod 6, a transmission rod 7, a sensor 8, a transducer 9, a slider 10, a valve core 11, a first threaded rod 12, a second threaded rod 13, a nut sleeve 14 and a slide rail 15.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, an integral connection, or a detachable connection; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.
As shown in fig. 1 to 4, a main distribution valve core displacement measuring device includes a connecting assembly, a measuring assembly, and a mounting assembly, wherein the connecting assembly is connected to a valve core 11 of a main distribution valve and is used for converting the movement of the main distribution valve into the movement of the connecting assembly, the measuring assembly is connected to the connecting assembly and is used for measuring the displacement of the connecting assembly, and the mounting assembly is connected to the measuring assembly and is used for fixing the connecting assembly and the measuring assembly;
the mounting assembly comprises a support plate, a fixed plate 1, a movable plate 2 and a fastening bolt, the support plate comprises a first transverse plate 4 and a vertical plate 5, the first transverse plate 4 is connected with the measuring assembly, the first transverse plate 4 is connected with the vertical plate 5, a through hole A is formed in the vertical plate 5, a through hole C is formed in the fixed plate 1, and a screw rod of the fastening bolt penetrates through the through hole A and the through hole C to connect the fixed plate 1 and the vertical plate 5;
still include adjusting part, adjusting part includes nut cover 14, first threaded rod 12, second threaded rod 13, one side of fixed plate 1 with one side of fly leaf 2 is articulated, the one end of first threaded rod 12, second threaded rod 13 respectively with the nut cover passes through threaded connection, the other end of first threaded rod 12, second threaded rod respectively with fixed plate 1, fly leaf 2 are articulated.
The utility model discloses a theory of operation does: the process coupling assembling, the case 11 motion of main distributing valve turns into coupling assembling's motion, measuring component is right coupling assembling's motion is measured, compares in the main case 11 motion of joining in marriage the valve of direct measurement, through coupling assembling's switching makes the measurement more convenient, the installation component will measuring component, coupling assembling are fixed in the installation department, through will first screw rod, second screw rod screw in or screw out nut cover 14 can be adjusted fixed plate 1 with contained angle between the fly leaf 2 increases the installation adaptability of this device, the utility model discloses in, fastening bolt is furnished with the nut of adaptation, through screwing up the nut will fixed plate 1, riser 5 press from both sides tightly.
Further, the installation component further comprises a second transverse plate 3, the second transverse plate 3 and the vertical plate 5 are connected, a through hole B is formed in the second transverse plate 3, and the inner diameter of the through hole B is larger than or equal to that of the through hole C.
Through will fastening bolt follows take out in through-hole A, the through-hole C, will through-hole C on the fixed plate 1 with through-hole B on the second diaphragm 3 aligns, will fastening bolt inserts in through-hole B, the through-hole C, make second diaphragm 3 with fixed plate 1 connects, can adjust measuring component, coupling assembling are relative the position of installation component increases device adaptability.
Further, coupling assembling includes guide bar 6, transfer line 7, guide bar 6 is connected with the case 11 of the valve is joined in marriage mainly, transfer line 7 one end with guide bar 6 is connected, the other end with the measurement component is connected, guide bar 6 with the contained angle between transfer line 7 is greater than zero.
The valve core 11 of the main distribution valve is moved and translated through the guide rod 6, and compared with the mode that the valve core 11 of the main distribution valve is connected through a straight rod, the position of the measuring assembly can be adjusted more flexibly.
Further, the measuring assembly comprises a sliding rail 15, a sliding block 10 matched with the sliding rail 15, a sensor 8, a processor and a converter 9, the sliding block 10 moves along the sliding rail 15, the sliding block 10 is made of a permanent magnet, the transmission rod 7 is connected with the sliding block 10, the sensor 8 is connected with the sliding rail 15 and used for measuring the displacement of the sliding block 10, the sensor 8, the processor and the converter 9 are electrically connected, the processor is used for processing the measuring data of the sensor 8 and transmitting the measuring data to the converter 9, and the converter 9 is used for converting the data of the sensor 8 into an electric signal.
The utility model discloses in, sensor 8, treater, converter 9 can select suitable model in the product that has on the market to sell, and the sensor 8, treater, converter 9 of selection can make sensor 8's pulse signal warp for the signal of telecommunication after the converter 9 conversion, transfer line 7 promotes slider 10 removes, sensor 8 measures slider 10's removal, process will after the converter 9 conversion the pulse signal of sensor 8 transmits to unit LCU after turning into the signal of telecommunication.
Further, reinforcing ribs are arranged at the joints of the first transverse plate 4 and the vertical plate 5 and the joints of the second transverse plate 3 and the vertical plate 5.
Through setting up the strengthening rib increases first diaphragm 4 with riser 5, second diaphragm 3 with joint strength between the riser 5.
Further, the sensor 8 is a non-contact sensor.
Through adopting the linear displacement sensor of non-contact, avoided wearing and tearing, noise and error signal, it is more accurate to detect the utility model discloses in, sensor 8 can be the general slider magnetostrictive displacement sensor of non-contact that the model is 1800-MTS.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the embodiments in the above description, and the technical concept of the present invention can be within the scope of the present invention, and can be modified to various simple modifications, and these simple modifications all belong to the protection scope of the present invention. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features. In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (6)
1. The utility model provides a displacement measurement device of main valve core that joins in marriage which characterized in that: the device comprises a connecting assembly, a measuring assembly and a mounting assembly, wherein the connecting assembly is connected with a valve core (11) of a main distribution valve and used for converting the movement of the main distribution valve into the movement of the connecting assembly;
the mounting assembly comprises a support plate, a fixed plate (1), a movable plate (2) and a fastening bolt, the support plate comprises a first transverse plate (4), a second transverse plate (3) and a vertical plate (5), the first transverse plate (4) is connected with the measuring assembly, the first transverse plate (4) and the second transverse plate (3) are respectively connected with the vertical plate (5), a through hole A is formed in the vertical plate (5), a through hole C is formed in the fixed plate (1), and a screw rod of the fastening bolt penetrates through the through hole A and the through hole C to connect the fixed plate (1) and the vertical plate (5);
still include adjusting part, adjusting part includes nut cover (14), first threaded rod (12), second threaded rod (13), one side of fixed plate (1) with one side of fly leaf (2) is articulated, the one end of first threaded rod (12), second threaded rod (13) respectively with nut cover (14) passes through threaded connection, the other end of first threaded rod (12), second threaded rod respectively with fixed plate (1), fly leaf (2) are articulated.
2. A primary valve spool displacement measuring device according to claim 1, wherein: and a through hole B is formed in the second transverse plate (3), and the inner diameter of the through hole B is larger than or equal to that of the through hole C.
3. A primary valve spool displacement measuring device according to claim 1, wherein: coupling assembling includes guide bar (6), transfer line (7), guide bar (6) are connected with main case (11) of joining in marriage the valve, transfer line (7) one end with guide bar (6) are connected, the other end with the measurement component is connected, guide bar (6) with contained angle is greater than zero between transfer line (7).
4. A main valve spool displacement measuring device according to claim 3, wherein: the measuring component comprises a sliding rail (15), a sliding block (10) matched with the sliding rail (15), a sensor (8), a processor and a converter (9), the sliding block (10) moves along the sliding rail (15), the sliding block (10) is made of a permanent magnet, a transmission rod (7) is connected with the sliding block (10), the sensor (8) is connected with the sliding rail (15) and used for measuring the displacement of the sliding block (10), the sensor (8), the processor and the converter (9) are electrically connected, the processor is used for processing the measuring data of the sensor (8) and transmitting the measuring data to the converter (9), and the converter (9) is used for converting the data of the sensor (8) into an electric signal.
5. A primary valve spool displacement measuring device according to claim 1, wherein: the first transverse plate (4) and the vertical plate (5) are arranged at the joint, and the second transverse plate (3) and the vertical plate (5) are arranged at the joint.
6. A primary valve spool displacement measuring device according to claim 4 wherein: the sensor (8) is a non-contact sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021755287.6U CN212988255U (en) | 2020-08-19 | 2020-08-19 | Main valve core displacement measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021755287.6U CN212988255U (en) | 2020-08-19 | 2020-08-19 | Main valve core displacement measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212988255U true CN212988255U (en) | 2021-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021755287.6U Active CN212988255U (en) | 2020-08-19 | 2020-08-19 | Main valve core displacement measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212988255U (en) |
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2020
- 2020-08-19 CN CN202021755287.6U patent/CN212988255U/en active Active
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