CN210802355U - Power plant main pump eddy current sensor installs auxiliary device - Google Patents
Power plant main pump eddy current sensor installs auxiliary device Download PDFInfo
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- CN210802355U CN210802355U CN201921785107.6U CN201921785107U CN210802355U CN 210802355 U CN210802355 U CN 210802355U CN 201921785107 U CN201921785107 U CN 201921785107U CN 210802355 U CN210802355 U CN 210802355U
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- metal block
- main pump
- eddy current
- current sensor
- power plant
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Abstract
The utility model provides a power plant main pump eddy current sensor installs auxiliary device, including metal block and magnetic path, the mounting hole has been seted up to the bottom of metal block, the magnetic path is fixed in the mounting hole. The metal block is made of the same material as the main pump gear, the metal block can be quickly attracted into the tooth grooves through the magnetic blocks, the upper surface of the metal block and the gear surface are located on the same arc surface, and therefore when the main pump eddy current sensor is installed, the eddy current sensor installation gap voltage can be measured without adjusting the gear disc. The auxiliary installation device can accelerate the installation speed of the eddy current sensor, improve the installation precision and greatly shorten the irradiation time of workers.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a technical field of eddy current sensor installation, especially a power plant main pump eddy current sensor installation auxiliary device.
[ background of the invention ]
The main pump of the power plant is a key device for ensuring the normal operation of the power plant, and the zero rotating speed is the zero rotating speed state of the main pump in the shutdown process. The main pump zero-rotating-speed signal is an important safety signal when the main pump is stopped and checked, so that the eddy current sensor of the main pump needs to be detached for inspection every time in overhaul, and needs to be reinstalled after the inspection. The eddy current sensor is a non-contact linear metering tool, and the principle of the eddy current sensor is to accurately measure the relative position of a detected body (which must be a metal conductor) and a probe end face through an eddy current effect. Because the distance from the probe to the tooth surface needs to be adjusted when the eddy current sensor is installed, the gears have larger intervals, and the gears cannot be manually rotated to enable the top end of the probe to be aligned with the tooth surface, if the probe is not aligned with the tooth surface during installation, the installation interval error can be caused, the threshold voltage does not meet the requirements and other consequences, and the accuracy of later-stage monitoring data is influenced.
And the main pump of power plant is installed in narrow and small enclosure space usually, is in the operational environment of high radiation, high noise, high vibration, and it is extremely necessary to reduce personnel at the operating time of main pump under the prerequisite of guaranteeing the quality, and this can effectively reduce personnel and receive the irradiation volume.
[ Utility model ] content
The utility model aims at solving the problem among the prior art, providing a power plant main pump eddy current sensor installation auxiliary device, this installation auxiliary device is applicable to the first installation of main pump eddy current sensor, returns the dress after the censorship, plays assistance-localization real-time, accelerates the effect of installation speed when the installation.
In order to achieve the purpose, the utility model provides a power plant main pump eddy current sensor installs auxiliary device, including metal block and magnetic path, the mounting hole has been seted up to the bottom of metal block, the magnetic path is fixed in the mounting hole.
Preferably, the metal block is approximately in a trapezoid structure, when the metal block is sucked in the tooth groove of the main pump, the upper surface of the metal block and the gear surface of the main pump rotating speed teeth are located on the same arc surface, the bottom corners of two sides of the lower surface of the metal block are provided with arc chamfers, the left side and the right side of the metal block are provided with symmetrically arranged inclined planes, the inclination of the inclined planes is the same as the inclination of the tooth groove, and the front side and the rear side of the metal block are provided with symmetrically arranged planes.
Preferably, the mounting hole is formed in the center of the lower surface of the metal block, and the lower surface is an inward concave arc-shaped surface.
Preferably, the mounting hole is a cylindrical blind hole, the magnetic block is fixedly mounted in an inner cavity of the mounting hole through glue, and the lower end face of the magnetic block is flush with the lower end face of the metal block.
Preferably, the metal block is made of the same material as that of the main pump revolution speed gear.
The utility model has the advantages that: the utility model discloses a metal block material is the same with the main pump gear, can the quick actuation in the tooth's socket through the magnetic path, and the metal block upper surface is in same arc surface with the gear face for when installing main pump eddy current sensor, need not adjust the toothed disc and just can measure eddy current sensor installation gap voltage. The installation speed of the eddy current sensor can be increased, the installation precision is improved, and the irradiation time of workers is greatly shortened.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a front view of the installation auxiliary device of the eddy current sensor of the main pump of the power plant of the present invention;
fig. 2 is the utility model discloses a power plant main pump eddy current sensor installs auxiliary device's spatial structure schematic diagram.
[ detailed description ] embodiments
Referring to fig. 1 the utility model relates to a power plant main pump eddy current sensor installs auxiliary device, including metal block 1 and magnetic path 2, mounting hole 11 has been seted up to the bottom of metal block 1, magnetic path 2 is fixed in mounting hole 11. The material of the metal block 1 is the same as that of the main pump rotating speed gear.
Further, referring to fig. 2, the metal block 1 is approximately in a trapezoid structure, when the metal block 1 is sucked in the tooth space of the main pump, the upper surface 13 of the metal block 1 and the gear surface of the main pump rotating speed teeth are located on the same arc surface, the bottom corners of two sides of the lower surface 15 of the metal block 1 are provided with arc chamfers 151, the left side and the right side of the metal block 1 are provided with symmetrically arranged inclined surfaces 12, the inclination of the inclined surfaces 12 is the same as the inclination of the tooth space, and the front side and the rear side of the metal block 1 are provided with symmetrically arranged planes 14. The mounting hole 11 is formed in the center of the lower surface 15 of the metal block 1, and the lower surface 15 is an inward concave arc-shaped surface.
Furthermore, the mounting hole 11 is a cylindrical blind hole, the magnetic block 2 is fixedly mounted in the inner cavity of the mounting hole 11 through glue, and the lower end face of the magnetic block 2 is flush with the lower end face of the metal block 1.
The utility model discloses the working process:
the utility model relates to an installation auxiliary device of main pump eddy current sensor in power plant, at the in-process that uses, pass through the quick actuation of magnetic path with the metal block in the main pump tooth's socket, the metal block upper surface is in same arc surface with the gear face after the actuation, measures eddy current sensor's gap voltage this moment, with voltage adjustment to reasonable scope (linear mid point). Because different metal conductors have different sensitivity to the eddy current sensor, and the metal block in the device is made of the same material as the gear, the distance between the eddy current sensor and the tooth surface can be obtained more accurately through the gap voltage.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (5)
1. The utility model provides a power plant main pump eddy current sensor installs auxiliary device which characterized in that: the magnetic block comprises a metal block (1) and a magnetic block (2), wherein a mounting hole (11) is formed in the bottom of the metal block (1), and the magnetic block (2) is fixed in the mounting hole (11).
2. The power plant main pump eddy current sensor mounting aid as claimed in claim 1, wherein: the utility model discloses a pump, including metal block (1), gear face, the gear face of upper surface (13) of metal block (1) and main pump rotational speed tooth, the base angle of the lower surface (15) both sides of metal block (1) has circular arc chamfer (151), the side has inclined plane (12) that are the symmetry and set up about metal block (1), the gradient of inclined plane (12) is the same with the tooth's socket inclination, and the side has plane (14) that are the symmetry and set up around metal block (1) when metal block (1) actuation in the main pump tooth's socket.
3. The power plant main pump eddy current sensor mounting aid of claim 2, wherein: the mounting hole (11) is formed in the center of the lower surface (15) of the metal block (1), and the lower surface (15) is an inwards concave arc-shaped surface.
4. The power plant main pump eddy current sensor mounting aid as claimed in claim 1, wherein: the mounting hole (11) is a cylindrical blind hole, the magnetic block (2) is fixedly mounted in an inner cavity of the mounting hole (11) through glue, and the lower end face of the magnetic block (2) is flush with the lower end face of the metal block (1).
5. The power plant main pump eddy current sensor mounting aid as claimed in any one of claims 1-4, wherein: the material of the metal block (1) is the same as that of the main pump rotating speed gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921785107.6U CN210802355U (en) | 2019-10-23 | 2019-10-23 | Power plant main pump eddy current sensor installs auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921785107.6U CN210802355U (en) | 2019-10-23 | 2019-10-23 | Power plant main pump eddy current sensor installs auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210802355U true CN210802355U (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921785107.6U Active CN210802355U (en) | 2019-10-23 | 2019-10-23 | Power plant main pump eddy current sensor installs auxiliary device |
Country Status (1)
| Country | Link |
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| CN (1) | CN210802355U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114322794A (en) * | 2021-12-03 | 2022-04-12 | 西北工业大学 | Filling block for measuring thickness of gear oil film by optical fiber method, and measuring device and method |
| CN114577106A (en) * | 2021-12-03 | 2022-06-03 | 西北工业大学 | Filling block for measuring thickness of gear oil film by eddy current method, and measuring device and method |
-
2019
- 2019-10-23 CN CN201921785107.6U patent/CN210802355U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114322794A (en) * | 2021-12-03 | 2022-04-12 | 西北工业大学 | Filling block for measuring thickness of gear oil film by optical fiber method, and measuring device and method |
| CN114577106A (en) * | 2021-12-03 | 2022-06-03 | 西北工业大学 | Filling block for measuring thickness of gear oil film by eddy current method, and measuring device and method |
| CN114322794B (en) * | 2021-12-03 | 2024-03-19 | 西北工业大学 | Filling block for measuring thickness of gear oil film by optical fiber method, measuring device and method |
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