CN215375571U - Shaft voltage monitoring device - Google Patents
Shaft voltage monitoring device Download PDFInfo
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- CN215375571U CN215375571U CN202121449102.3U CN202121449102U CN215375571U CN 215375571 U CN215375571 U CN 215375571U CN 202121449102 U CN202121449102 U CN 202121449102U CN 215375571 U CN215375571 U CN 215375571U
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Abstract
The utility model discloses a shaft voltage monitoring device, belonging to the field of voltage monitoring devices, comprising a monitoring box, wherein the inner wall of the monitoring box is fixedly provided with a voltage monitor, the monitoring box is connected with a support plate in a sliding way, the upper end of the support plate is provided with a positive electromagnetic plate, the upper end of the positive electromagnetic plate is fixedly provided with a scraper, the inner wall of the monitoring box is fixedly connected with a rubber bag through a fixed rod, the inner cavity of the rubber bag is provided with dry powder, the side wall of the rubber bag is connected with the scraper, the inner wall of the monitoring box is fixedly provided with a negative electromagnetic plate, the upper end of the negative electromagnetic plate is fixedly provided with a fuse, the fuse is connected with a straight plate through a lead, the straight plate is provided with a slide way, the slide way is connected with two connecting rods in a sliding way, when the current generated by shaft voltage is received when the shaft voltage is monitored, the fuse is short-circuited, the positive electromagnetic plate is short-circuited, and the positive battery plate is driven by the scraper to break the rubber bag, thereby extinguishing the fire inside the monitoring box.
Description
Technical Field
The utility model relates to the field of voltage monitoring devices, in particular to a shaft voltage monitoring device.
Background
The shaft voltage refers to the voltage induced on the generator shaft due to the asymmetry of the generator magnetic field, the magnetization of the generator large shaft, electrostatic charging and the like. In order to monitor whether the shaft insulation is intact or not, the voltage across the shaft and the voltage between the shaft and the machine body need to be measured periodically.
The voltage monitor is a statistical voltage monitor which continuously monitors and counts voltage deviation caused by slow change of a normal operation state of a power system. The system has the functions of monitoring, analyzing, memorizing, inquiring, parameter setting and the like.
In order to monitor the change of the shaft voltage in real time, a voltage monitoring device is generally installed at two ends of the shaft voltage, but the shaft voltage may generate current due to high voltage to bottom voltage, so that the voltage monitoring device may be short-circuited to cause damage or fire, and the conventional voltage monitoring device is not provided with fire protection equipment.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
Aiming at the problems in the prior art, the utility model aims to provide a shaft voltage monitoring device, which is convenient for a fuse to be short-circuited when current generated by shaft voltage is received during shaft voltage monitoring, and causes a positive battery plate to be short-circuited, so that the positive battery plate drives a scriber to cut a rubber bag, and the interior of a monitoring box is extinguished.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides an axle voltage monitoring device, includes the monitoring case, the inner wall fixed mounting of monitoring case has voltage monitor, monitoring case sliding connection has the backup pad, positive electricity magnetic sheet has been placed to the upper end of backup pad, the upper end fixed mounting of positive electricity magnetic sheet has the paddle-breaker, the inner wall of monitoring case passes through dead lever fixed connection rubber bag, dry powder has been placed to the inner chamber of rubber bag, the lateral wall and the paddle-breaker of rubber bag link up, have the inner wall fixed mounting of monitoring case has negative electricity magnetic sheet, the upper end fixed mounting who negatively charges the magnetic sheet has the fuse, the fuse passes through the wire and connects the straight board, the slide has been seted up to the straight board, slide sliding connection has two connecting rods.
Furthermore, the side wall of the monitoring box is provided with side openings, and the two connecting rods penetrate through the side openings to the outer sides of the side openings, so that the connecting rods can conveniently slide up and down in the side openings, and the two ends of the connecting shaft are convenient to connect.
Furthermore, the lateral wall fixed mounting of monitoring case has filter screen and sponge, the filter screen links up with the inner wall of monitoring case, is convenient for monitor incasement ventilation to prevent that external granule or water from entering into the monitoring incasement.
Furthermore, the fuse is connected with the negative electromagnetic plate and the positive electromagnetic plate in series through wires, and the fuse is connected with the straight plate and the voltage monitor in series, so that the connection between the voltage monitor and the straight plate or the connection between the negative electromagnetic plate and the positive electromagnetic plate can be directly disconnected through the fuse disconnection.
Furthermore, the positive electromagnetic plate is provided with a through hole, the through hole is connected with a limiting rod in a sliding mode, and one end of the limiting rod is fixedly connected with the inner wall of the monitoring box, so that the positive electromagnetic plate can slide up and down conveniently.
Furthermore, a drying agent is arranged on the inner wall of the monitoring box, so that water vapor in the monitoring box can be removed conveniently.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages that:
(1) the utility model is convenient for the short circuit of the fuse when the current generated by the shaft voltage is received when the shaft voltage is monitored, and causes the short circuit of the positive electromagnetic plate, thereby causing the positive battery plate to drive the scraper to cut the rubber bag, and extinguishing the fire inside the monitoring box.
(2) The positive electromagnetism board has seted up the through-hole, and the through-hole sliding connection has the gag lever post, and the inner wall of monitoring box is connected to the one end fixed connection of gag lever post, and the positive electromagnetism board of being convenient for slides from top to bottom.
Drawings
FIG. 1 is a structural cross-sectional view of the present invention;
fig. 2 is a top view of the structure of the present invention.
The reference numbers in the figures illustrate:
1. a monitoring box; 2. a voltage monitor; 3. a fuse; 4. a straight plate; 5. a slideway; 6. a connecting rod; 7. a side port; 8. a negative electromagnetic plate; 9. a positive electromagnetic plate; 10. a cutter; 11. a support plate; 12. a rubber bag; 13. dry powder; 14. a filter screen; 15. a sponge.
Detailed Description
The drawings in the embodiments of the utility model will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the utility model; but not all embodiments, are based on the embodiments of the utility model; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-2, a shaft voltage monitoring device comprises a monitoring box 1, a voltage monitor 2 is fixedly mounted on the inner wall of the monitoring box 1, a supporting plate 11 is slidably connected to the monitoring box 1, a chute is formed in the upper end of the monitoring box 1, the chute is slidably connected to the supporting plate 11 and supports the supporting plate 11 to prevent the supporting plate 11 from falling off, a positive electromagnetic plate 9 is disposed on the upper end of the supporting plate 11, one end of the supporting plate 11, which slides to the chute, is convenient for supporting the positive electromagnetic plate 9, the other end of the supporting plate 11, which slides to the chute, is no longer convenient for supporting the positive electromagnetic plate 9, a scraper 10 is fixedly mounted on the upper end of the positive electromagnetic plate 9, a rubber bag 12 is fixedly connected to the inner wall of the monitoring box 1 through a fixing rod, dry powder 13 is disposed in the inner cavity of the rubber bag 12, the side wall of the rubber bag 12 is connected with the scraper 10, a negative electromagnetic plate 8 is fixedly mounted on the inner wall of the monitoring box 1, electromagnetism generated between the negative electromagnetic plate 8 and the positive electromagnetic plate 9 is convenient for supporting the gravity of the positive electromagnetic plate 9 and the scraper 10, negatively charged magnetic plate 8's upper end fixed mounting has fuse 3, and fuse 3 passes through wire connection straight plate 4, and straight plate 4 has seted up slide 5, and slide 5 sliding connection has two connecting rods 6.
The side wall of monitoring box 1 is fixed with filter screen 14 and sponge 15, and filter screen 14 links up with the inner wall of monitoring box 1, and the ventilation is convenient for in the monitoring box 1 to prevent that external granule or water from entering into in the monitoring box 1.
The positive electromagnetism board 9 has seted up the through-hole, and the through-hole sliding connection has the gag lever post, and the inner wall of monitoring box 1 is connected to the one end fixed connection of gag lever post, and the positive electromagnetism board 9 of being convenient for slides from top to bottom.
The inner wall of the monitoring box 1 is provided with a drying agent, so that the water vapor in the monitoring box 1 can be removed conveniently.
When the device is used, a technician in the field connects the voltage monitor 2 and the fuse 3 with an external power supply and starts the device, then the connecting rods 6 slide in the slide ways 5, the two connecting rods 6 are respectively communicated with two ends of the shaft, then the supporting plate 11 slides to one end of the slide way, the supporting plate 11 is not used for supporting the positive electromagnetic plate 9, at the moment, the positive electromagnetic plate 9 and the negative electromagnetic plate 8 are communicated with the power supply, the negative electromagnetic plate 8 and the positive electromagnetic plate 9 are supported by the positive electromagnetic plate 9 through electromagnetism, when the fuse 3 is impacted by the large change generated at two ends of the shaft, the fuse 3 melts and breaks circuit, thereby the voltage monitor 2 is disconnected with the straight plate 4, the negative electromagnetic plate 8 is disconnected with the positive electromagnetic plate 9, the positive electromagnetic plate 9 has no electromagnetic support, the positive electromagnetic plate 9 falls, the positive electromagnetic plate 9 drives the scraper 10 to fall and breaks the rubber bag 12, and dry powder 13 in the rubber bag 12 is scattered to the voltage monitor 2, the utility model is convenient for the short circuit of the fuse 3 and the short circuit of the positive electromagnetic plate 9 when the shaft voltage is monitored and the current generated by the shaft voltage is applied, thereby leading the positive battery plate 9 to drive the scriber 10 to cut the rubber bag 12, and further extinguishing the fire in the monitoring box 1.
The above; but are merely preferred embodiments of the utility model; the scope of the utility model is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the utility model are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (6)
1. The utility model provides an axle voltage monitoring devices, includes monitoring box (1), its characterized in that: a voltage monitor (2) is fixedly arranged on the inner wall of the monitoring box (1), the monitoring box (1) is connected with a supporting plate (11) in a sliding way, a positive electromagnetic plate (9) is arranged at the upper end of the supporting plate (11), a scriber (10) is fixedly arranged at the upper end of the positive electromagnetic plate (9), the inner wall of the monitoring box (1) is fixedly connected with a rubber bag (12) through a fixed rod, the inner cavity of the rubber bag (12) is provided with dry powder (13), the side wall of the rubber bag (12) is connected with the scriber (10), the inner wall of the monitoring box (1) is fixedly provided with a negative electromagnetic plate (8), the upper end of the negative electromagnetic plate (8) is fixedly provided with a fuse (3), the fuse (3) is connected with the straight plate (4) through a lead, the straight plate (4) is provided with a slide way (5), and the slide way (5) is connected with two connecting rods (6) in a sliding manner.
2. The shaft voltage monitoring device according to claim 1, wherein: side openings (7) are formed in the side wall of the monitoring box (1), and the two connecting rods (6) penetrate through the side openings (7) to the outer side of the side openings.
3. The shaft voltage monitoring device according to claim 1, wherein: the side wall fixed mounting of monitoring case (1) has filter screen (14) and sponge (15), filter screen (14) link up with the inner wall of monitoring case (1).
4. The shaft voltage monitoring device according to claim 1, wherein: the fuse (3) is connected with a negative electromagnetic plate (8) and a positive electromagnetic plate (9) in series through a wire, and the fuse (3) is connected with a straight plate (4) and a voltage monitor (2) in series.
5. The shaft voltage monitoring device according to claim 1, wherein: the positive electromagnetic plate (9) is provided with a through hole, the through hole is connected with a limiting rod in a sliding mode, and one end of the limiting rod is fixedly connected with the inner wall of the monitoring box (1).
6. The shaft voltage monitoring device according to claim 1, wherein: and a drying agent is arranged on the inner wall of the monitoring box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121449102.3U CN215375571U (en) | 2021-06-29 | 2021-06-29 | Shaft voltage monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121449102.3U CN215375571U (en) | 2021-06-29 | 2021-06-29 | Shaft voltage monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215375571U true CN215375571U (en) | 2021-12-31 |
Family
ID=79605811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121449102.3U Active CN215375571U (en) | 2021-06-29 | 2021-06-29 | Shaft voltage monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215375571U (en) |
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2021
- 2021-06-29 CN CN202121449102.3U patent/CN215375571U/en active Active
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