CN210322267U - Sensing detection device with on-load tap-changer fault monitoring function - Google Patents
Sensing detection device with on-load tap-changer fault monitoring function Download PDFInfo
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- CN210322267U CN210322267U CN201921272829.1U CN201921272829U CN210322267U CN 210322267 U CN210322267 U CN 210322267U CN 201921272829 U CN201921272829 U CN 201921272829U CN 210322267 U CN210322267 U CN 210322267U
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- load tap
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Abstract
A sensing detection device with an on-load tap-changer fault monitoring function relates to the field of power equipment and comprises a disk body and a groove-shaped photoelectric switch, wherein the disk body is fixedly arranged on a transmission shaft of the on-load tap-changer and is provided with a plurality of through holes which are circularly and uniformly distributed around the transmission shaft; the groove-shaped photoelectric switch is fixedly arranged on a rack of the on-load tap-changer, and the transmitting end and the receiving end of the groove-shaped photoelectric switch are respectively positioned on two sides of the through hole. The utility model is used for detect transmission shaft slew velocity, the rotation condition that can the real-time measurement transmission shaft, whether should have a trouble with the on-load tap-changer according to this real-time supervision to can in time feed back to backstage staff. In addition the utility model discloses still have design benefit, simple structure, accuracy height, advantage such as with low costs.
Description
Technical Field
The utility model relates to a power equipment field, the more specifically sensing detection device who indicates that possesses on-load tap-changer fault monitoring function that says so.
Background
The on-load tap-changer is a voltage regulating device which is suitable for being operated under the excitation or the load of a transformer and is used for changing the tapping connection position of a transformer winding. The basic principle is to realize the switching between taps in the transformer winding under the condition of ensuring that the load current is not interrupted, thereby changing the number of turns of the winding, namely the voltage ratio of the transformer, and finally realizing the purpose of voltage regulation. The existing on-load tap-changer comprises a rack, a switch body, an electric control box and a transmission shaft, wherein the switch body and the electric control box are fixedly installed on the rack, and an output shaft of a driving motor in the electric control box is linked with the switch body through a gear set and the transmission shaft. At present, a sensing detection device which is specially used for detecting whether the on-load tap-changer has a fault or not does not exist, and the on-load tap-changer is difficult to find and feed back in time when the on-load tap-changer has the fault, so that a detection device which can monitor whether the on-load tap-changer has the fault or not in real time needs to be designed.
Disclosure of Invention
The utility model provides a pair of possess sensing detection device who has on-load tap-changer fault monitoring function, the above-mentioned problem that exists among its aim at prior art.
The utility model adopts the technical scheme as follows:
a sensing detection device with an on-load tap-changer fault monitoring function is provided, wherein a sensing detection device body is used for detecting the rotating speed of a transmission shaft of an on-load tap-changer.
The disc body is fixedly arranged on a transmission shaft of the on-load tap-changer, and is provided with a plurality of through holes which are circularly and uniformly distributed around the transmission shaft; the groove-shaped photoelectric switch is fixedly arranged on a rack of the on-load tap-changer, and the transmitting end and the receiving end of the groove-shaped photoelectric switch are respectively positioned on two sides of the through hole.
The upper end of the mounting piece is fixedly locked on a rack of the on-load tap-changer through a bolt, and the mounting piece is fixedly arranged at the lower end of the mounting rod.
Further, the disk body includes two semicircle bodies that the structure is the same and bilateral symmetry, the semicircle body is equipped with a plurality of the through-hole, and the semicircle body is equipped with the breach that is used for installing the transmission shaft, and the upper and lower terminal surface of the semicircle body all is equipped with a plurality of connecting portions that are used for cooperating another semicircle body of bolted connection.
The magnetic gear turntable is fixedly installed on a transmission shaft of the on-load tap-changer, the axial lead of the magnetic gear turntable coincides with the axial lead of the transmission shaft, and the Hall sensor is fixedly arranged at the upper end of the support frame and close to the circumferential surface of the magnetic gear turntable.
Compared with the prior art, the utility model has the advantages of:
the utility model is used for detect transmission shaft slew velocity, the rotation condition that can the real-time measurement transmission shaft, whether should have a trouble with the on-load tap-changer according to this real-time supervision to can in time feed back to backstage staff. In addition the utility model discloses still have design benefit, simple structure, accuracy height, advantage such as with low costs.
Drawings
Fig. 1 is a schematic view of an assembly of an on-load tap changer according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a first embodiment of the present invention and a transmission shaft.
Fig. 3 is a schematic structural diagram of a tray body according to a first embodiment of the present invention (bolts are not shown).
Fig. 4 is a schematic structural diagram of an installation component in the first embodiment of the present invention.
Fig. 5 is an assembly diagram of the second embodiment of the present invention and an on-load tap changer.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings. Numerous details are set forth in the following description in order to provide a thorough understanding of the present invention, but it will be apparent to one skilled in the art that the present invention may be practiced without these details.
Example one
Referring to fig. 1 and 2, the on-load tap changer includes a rack 1, and a switch body 2, an electric control box 3, and a transmission shaft 4 which are arranged on the rack 1. The electric control box 3 is linked with the switch body 2 through the transmission shaft 4, the gear box 5 and the transmission shaft 6. The specific structures and connection modes of the switch body 2, the electric control box 3 and the transmission shaft 4 are the same as those of the existing on-load tap-changer, belong to the prior art and are not described again.
Referring to fig. 1 and 2, a sensing device 7 for detecting a rotational speed of a drive shaft 6 of an on-load tap changer has a function of monitoring a fault of the on-load tap changer. Of course, the sensing device 7 may be mounted on the transmission shaft 6 in a suitable manner, and the rotating speed of the transmission shaft 6 is detected to determine whether the equipment is in failure.
Referring to fig. 1 to 4, in particular, the sensing device 7 includes a tray 71, a groove-shaped photoelectric switch 72, and a mounting member 73. The tray body 71 is divided into two semicircular bodies 710 which have the same structure and are symmetrical left and right, and the semicircular bodies 710 are provided with a plurality of through holes 711. The semicircular body 710 is provided with a notch 712 for installing the transmission shaft 4, and the upper and lower end surfaces of the semicircular body 710 are respectively provided with a plurality of connecting parts 713 for connecting another semicircular body by matching with bolts. The two semicircular bodies 710 are mutually assembled to form the disc body 71 through the bolt matching connection portion 713, the transmission shaft 4 is clamped and fixed between the two gaps 712, and the plurality of through holes 711 are circularly and uniformly arranged around the transmission shaft 4. The groove-shaped photoelectric switch 72 is fixedly mounted on the frame 1 of the on-load tap-changer through a mounting member 73, and the transmitting end and the receiving end of the groove-shaped photoelectric switch 72 are respectively positioned at the upper side and the lower side of the through hole 711. Specifically, the upper end of the mounting component 73 is fixedly locked on the rack 1 of the on-load tap-changer through a bolt, the lower end of the mounting component 73 is provided with a mounting groove 731, and the groove-shaped photoelectric switch 72 is fixedly mounted in the mounting groove 731 through a bolt.
Referring to fig. 1 to 4, the working principle of the present invention is as follows: the electric control box 3 controls the switch body 2 to perform voltage regulation operation by driving the transmission shaft 4 to rotate, and the transmission shaft 4 should rotate at a constant speed under the condition that the electric control box 3, the switch body 2 and other related components normally work. The utility model discloses a trough shape photoelectric switch 72 and disk body 71's through-hole 711 cooperation, can real-time detection go out the rotational speed size of transmission shaft 4 and whether at the uniform velocity rotatory. If the sensing device 7 detects that the rotation speed of the transmission shaft 4 is not uniform, it can be preliminarily determined that the on-load tap-changer has some mechanical fault, and if the reduction gear set in the electric control box 3 is damaged, the transmission shaft 4 cannot normally rotate at a constant speed, so that whether the working state of the on-load tap-changer is normal or not can be indirectly detected by detecting the rotation condition of the transmission shaft 4. To sum up, the utility model discloses can real time monitoring transmission shaft 4's the rotation condition, realize this purpose of having the trouble of on-load tap-changer of real-time supervision in view of the above to can in time feed back to backstage staff. In addition the utility model discloses still have design benefit, simple structure, accuracy height, advantage such as with low costs.
Example two
Referring to fig. 1 to 5, a sensing device 8 having a function of monitoring a fault of an on-load tap changer includes a magnetic gear wheel 81, a hall sensor 82, and a support frame 83, the magnetic gear wheel 83 is fixedly mounted on a transmission shaft 4, and an axial line of the magnetic gear wheel 81 coincides with an axial line of the transmission shaft 4. The specific structure and installation manner of the magnetic gear rotating disk 83 can refer to the disk 71 in the first embodiment (i.e., two disk bodies that are symmetrical left and right are assembled and fixed on the transmission shaft 4 by matching bolts). The hall sensor 82 is fixedly arranged at the upper end of the support frame 83 and close to the circumferential surface of the magnetic gear turntable 81. Similarly, the hall sensor 82 and the magnetic gear turntable 81 are matched to detect the rotating speed of the transmission shaft 4 in real time and determine whether the transmission shaft rotates at a constant speed, so that the on-load tap-changer is preliminarily judged to have some mechanical faults.
The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (4)
1. The utility model provides a sensing detection device who possesses on-load tap-changer fault monitoring function which characterized in that: the sensing detection device is used for detecting the rotating speed of a transmission shaft of an on-load tap-changer and comprises a disc body and a groove-shaped photoelectric switch, wherein the disc body is fixedly arranged on the transmission shaft of the on-load tap-changer and is provided with a plurality of through holes which are circularly and uniformly distributed around the transmission shaft; the groove-shaped photoelectric switch is fixedly arranged on a rack of the on-load tap-changer, and the transmitting end and the receiving end of the groove-shaped photoelectric switch are respectively positioned on two sides of the through hole.
2. A sensing device with on-load tap-changer fault monitoring as claimed in claim 1, characterized in that: the upper end of the mounting piece is fixedly locked on a rack of the on-load tap-changer through a bolt, and the lower end of the mounting rod is fixedly provided with the mounting piece.
3. A sensing device with on-load tap-changer fault monitoring as claimed in claim 1, characterized in that: the disk body includes that the structure is the same and two semicircle bodies of bilateral symmetry, the semicircle body is equipped with a plurality of the through-hole, and the semicircle body is equipped with the breach that is used for installing the transmission shaft, and the upper and lower terminal surface of the semicircle body all is equipped with a plurality of connecting portions that are used for cooperating another semicircle body of bolted connection.
4. A sensing device with on-load tap-changer fault monitoring as claimed in claim 1, characterized in that: the magnetic gear turntable is fixedly installed on a transmission shaft of the on-load tap-changer, the axial lead of the magnetic gear turntable coincides with the axial lead of the transmission shaft, and the Hall sensor is fixedly arranged at the upper end of the support frame and close to the circumferential surface of the magnetic gear turntable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921272829.1U CN210322267U (en) | 2019-08-07 | 2019-08-07 | Sensing detection device with on-load tap-changer fault monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921272829.1U CN210322267U (en) | 2019-08-07 | 2019-08-07 | Sensing detection device with on-load tap-changer fault monitoring function |
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| Publication Number | Publication Date |
|---|---|
| CN210322267U true CN210322267U (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921272829.1U Active CN210322267U (en) | 2019-08-07 | 2019-08-07 | Sensing detection device with on-load tap-changer fault monitoring function |
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| CN (1) | CN210322267U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113012962A (en) * | 2021-03-29 | 2021-06-22 | 国家电网有限公司 | Device for conducting action signal of on-load tap-changer of transformer |
-
2019
- 2019-08-07 CN CN201921272829.1U patent/CN210322267U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113012962A (en) * | 2021-03-29 | 2021-06-22 | 国家电网有限公司 | Device for conducting action signal of on-load tap-changer of transformer |
| CN113012962B (en) * | 2021-03-29 | 2023-01-24 | 国家电网有限公司 | Device for conducting action signal of on-load tap-changer of transformer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ai Chun Inventor after: He Peng Inventor after: Liu Chengbao Inventor after: Chen Hongyuan Inventor after: Mao Heng Inventor before: Ai Chun |