CN115480200B

CN115480200B - Photoelectric detection equipment

Info

Publication number: CN115480200B
Application number: CN202211417829.2A
Authority: CN
Inventors: 吴优; 罗致; 黄旦莉; 李芳亚; 蒋晶晶; 朱黎黎; 沈立航; 廖世凯; 吴金克; 沈俊东
Original assignee: Wuhan Weixi Intelligent Technology Co ltd; Xiaogan Power Supply Co of State Grid Hubei Electric Power Co Ltd
Current assignee: Wuhan Weixi Intelligent Technology Co ltd; Xiaogan Power Supply Co of State Grid Hubei Electric Power Co Ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-03-07
Anticipated expiration: 2042-11-14
Also published as: CN115480200A

Abstract

The invention discloses photoelectric detection equipment which comprises a positioning disc, wherein a rheostat and a resistance regulating shaft matched with the rheostat are arranged below the positioning disc, the positioning disc is rotatably connected with a butt column which is close to the outer periphery and matched with the resistance regulating shaft, a butt electrode is fixedly arranged on the outer peripheral wall of the butt column, and when the butt column rotates, the resistance value of the rheostat changes under the action of the resistance regulating shaft. The optical fiber voltage sensor comprises a rheostat, a positioning disc and a placing disc, wherein the placing disc is coaxial and matched with the positioning disc in a rotating mode, the rheostat is placed below the positioning disc, an abutting column is arranged on the positioning disc, an abutting electrode is arranged on the abutting column, a placing groove is arranged on the placing disc, a conducting plate is arranged in the placing groove and used for abutting with a photoelectric crystal electrode terminal on the optical fiber voltage sensor to be detected, and when the rheostat, the abutting electrode and the conducting plate are electrically connected, the sensitivity of the optical fiber voltage sensor is detected by changing the potential of the rheostat.

Description

Photoelectric detection equipment

Technical Field

The invention relates to the technical field of power grid voltage monitoring, in particular to photoelectric detection equipment.

Background

The optical fiber voltage sensor is mainly applied to monitoring voltage waveform and amplitude which occur randomly in a power grid, knowing the running state of electrical equipment and analyzing the reason of insulation accidents, the accuracy of remote monitoring of the power grid is higher compared with other monitoring equipment at present, the core component of the optical fiber voltage sensor is a photoelectric crystal, and the voltage is measured by mainly utilizing the change of the object characteristics of the photoelectric crystal on polarized light under the action of an external electric field during working; at present, before the optical fiber voltage sensor is used, the optical fiber voltage sensor is usually subjected to sensitivity test by manually using simple voltage equipment, the test time is short, the test voltage range is small, and the voltage change gradient is irregular, so that the optical fiber voltage sensor cannot be ensured to have better reliability, and the follow-up monitoring on a power grid can be influenced after electric power construction.

To this end, the invention provides a photodetecting device.

Disclosure of Invention

The invention aims to: to solve the problems mentioned in the background art, a photodetecting device is proposed.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a photoelectric detection equipment, includes the positioning disk, the below of positioning disk is provided with rheostat and the accent axle of using with the rheostat cooperation, the positioning disk rotates to be connected with be close to the periphery and with transfer axle complex docking post, the fixed butt joint electrode that is provided with of periphery wall of this docking post, when the docking post is rotatory, the resistance value of rheostat changes under the accent axle effect, the top of positioning disk is rotated and is connected and place the dish, offers on the quotation of this placing the dish and is close to the periphery and for circumference evenly distributed's standing groove, is provided with the current conducting plate that uses with the docking electrode cooperation in this standing groove, when placing the dish rotation the docking post synchronous revolution and both rotatory axial vertical just intersect.

As a further description of the above technical solution:

the resistance adjusting shaft is provided with a bidirectional screw rod and a screw sleeve screwed on the bidirectional screw rod, and the screw sleeve is fixedly connected with an action block on the rheostat.

As a further description of the above technical solution:

the positioning disc is provided with a rectangular abdicating hole, the middle part of the butting column is fixed with a supporting shaft with the same axis, the supporting shaft is rotatably connected with two side walls in the rectangular abdicating hole, and one end of the bidirectional screw rod is connected with the supporting shaft through a meshing gear set.

As a further description of the above technical solution:

the length direction of back shaft is along the radial of positioning disk, the rectangle lets downthehole both sides wall offer with the back shaft rotation locating hole of being connected, the other end fixedly connected with of back shaft and place the bevel gear of dish meshing.

As a further description of the above technical solution:

a circular electrifying cavity is formed in the positioning hole, and an electrifying elastic sheet is arranged in the circular electrifying cavity and electrically connected with the butt-joint electrode and the rheostat.

As a further description of the above technical solution:

and the middle part of the upper end surface of the positioning disc is fixedly provided with a positioning shaft which is rotatably connected with the middle part of the placing disc.

As a further description of the above technical solution:

the butt joint electrode is provided with two elastic telescopic conductive shafts which are parallel and symmetrical relative to the rotation axis of the butt joint column, the conductive plate is provided with two T-shaped electrifying shafts, the T-shaped head end surface of each T-shaped electrifying shaft is matched with the action end of each conductive shaft, and the other end of each T-shaped electrifying shaft is provided with a detection socket.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. the optical fiber voltage sensor comprises a rheostat, a positioning disc and a placing disc, wherein the placing disc is coaxial and matched with the positioning disc in a rotating mode, the rheostat is placed below the positioning disc, an abutting column is arranged on the positioning disc, an abutting electrode is arranged on the abutting column, a placing groove is arranged on the placing disc, a conducting plate is arranged in the placing groove and used for abutting with a photoelectric crystal electrode terminal on the optical fiber voltage sensor to be detected, and when the rheostat, the abutting electrode and the conducting plate are electrically connected, the sensitivity of the optical fiber voltage sensor is detected by changing the potential of the rheostat.

2. According to the invention, the placing discs are provided with the placing grooves which are uniformly distributed in the circumferential direction, one optical fiber voltage sensor is correspondingly placed in each placing groove, the docking columns rotate relative to the positioning disc and are connected with the rheostat through the resistance adjusting shafts, the rotary discs rotate to drive the docking columns to rotate, the potentials corresponding to the rheostat are changed by rotating the docking columns through the resistance adjusting shafts, when the placing discs are controlled to rotate, the optical fiber voltage sensors in the uniformly distributed placing grooves can be driven to carry out sensitivity tests at different voltages in turn, and the detection reliability of the optical fiber voltage sensors is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of a positioning plate, a placing plate and a conductive plate of a photoelectric detection apparatus according to the present invention;

FIG. 2 is a schematic structural diagram of a combination of a positioning plate, a rheostat, a resistance adjusting shaft and an inner core gear set of the photoelectric detection device according to the present invention;

FIG. 3 is a schematic structural diagram of a positioning plate and a placing plate of a photoelectric detection apparatus according to the present invention, which are exploded and unfolded with docking posts;

fig. 4 is a schematic structural diagram of the photodetection device according to the present invention as viewed from the bottom in fig. 3;

fig. 5 is a schematic structural diagram of a circular power-on cavity of a photodetection device according to the present invention.

Illustration of the drawings:

1. positioning a plate; 11. positioning the shaft; 12. rectangular abdicating holes; 121. positioning holes; 1211. a circulating electrifying cavity; 2. a varistor; 21. an action block; 3. a resistance adjusting shaft; 31. a bidirectional screw rod; 32. sleeving the silk; 4. butting columns; 41. butting the electrodes; 411. a conductive shaft; 42. a support shaft; 421. a bevel gear; 5. placing a tray; 51. a placement groove; 6. a conductive plate; 61. a T-shaped electrifying shaft; 612. detecting the socket; 7. a meshing gear set; 8. and electrifying the elastic sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-5, a photoelectric detection apparatus comprises a positioning plate 1 and an external voltage (voltage) supply circuit, a varistor 2 and a resistance adjusting shaft 3 cooperating with the varistor 2 are disposed below the positioning plate 1, the external voltage supply circuit is connected in series with the varistor 2, the varistor 2 functions as a potentiometer to prepare for providing different voltages subsequently, the positioning plate 1 is rotatably connected with a docking post 4 which is close to the outer periphery and cooperates with the resistance adjusting shaft 3, a docking electrode 41 is fixedly disposed on the outer periphery of the docking post 4, when the docking post 4 rotates, the resistance value of the varistor 2 changes under the action of the resistance adjusting shaft 3, specifically, a bidirectional screw rod 31 and a screw sleeve 32 which is rotatably engaged with the bidirectional screw rod 31 are disposed on the resistance adjusting shaft 3, the screw sleeve 32 is fixedly connected with an action block 21 on the varistor 2, a rectangular abdicating hole 12 is further disposed on the positioning plate 1, a coaxial supporting shaft 42 is fixed in the middle of the docking column 4, the supporting shaft 42 is rotatably connected with two side walls in the rectangular abdicating hole 12, one end of the bidirectional screw rod 31 is connected with the supporting shaft 42 through a meshing gear set 7, the meshing gear set 7 is a structure (shown in the figure) with two cylindrical gears meshed with each other, a placing disc 5 is rotatably connected above the positioning disc 1, specifically, a positioning shaft 11 rotatably connected with the middle part of the placing disc 5 is fixedly arranged in the middle of the upper end face of the positioning disc 1, placing grooves 51 which are close to the outer periphery and uniformly distributed in the circumferential direction are arranged on the disc face of the placing disc 5, optical fiber voltage sensors are placed in the placing grooves 51, one optical fiber voltage sensor corresponds to each placing groove 51, a conductive plate 6 matched with the docking electrode 41 is arranged in the placing groove 51, specifically, two elastically telescopic shafts 411 are arranged on the docking electrode 41, two conducting shafts 411 are parallel and symmetrical relative to the rotation axis of the docking post 4, two T-shaped conducting shafts 61 are arranged on the conducting plate 6, the T-shaped head end surfaces of the T-shaped conducting shafts 61 are matched with the action ends of the conducting shafts 411 for use, one T-shaped conducting shaft 61 corresponds to one conducting shaft 411, the other end of the T-shaped conducting shaft 61 is provided with a detection socket 612, each T-shaped conducting shaft 61 corresponds to one detection socket 612, the detection socket 612 is plugged with a connecting terminal corresponding to a photoelectric crystal on the optical fiber voltage sensor, when the two conducting shafts 411 are contacted with the two T-shaped conducting shafts 61, the optical fiber voltage sensor is electrically connected with the rheostat 2, external voltage provides voltage for the optical fiber voltage sensor through the rheostat 2, when the bidirectional screw rod 31 rotates, the screw sleeve 32 is driven to move axially, and the corresponding potential on the rheostat 2 can be changed, so that the voltages measured and displayed by the optical fiber voltage sensor are different, then the optical fiber voltage sensor is connected with an external conversion and signal processing unit, then the voltage value is converted into a voltage value, the voltage value is displayed through a display, the displayed voltage is the voltage measured by the optical fiber voltage sensor, when the placing disc 5 rotates, the butt joint column 4 rotates synchronously, the rotating axial directions of the butt joint column 4 and the supporting shaft are vertical and intersected, specifically, the length direction of the supporting shaft 42 is along the radial direction of the positioning disc 1, two side walls in the rectangular abdicating hole 12 are provided with positioning holes 121 which are rotatably connected with the supporting shaft 42, a circulating electrifying cavity 121 is arranged in the positioning hole 1211, an electrifying elastic sheet 8 is arranged in the circulating electrifying cavity 1211, the electrifying elastic sheet 8 is electrically connected with the butt joint electrode 41 and the rheostat 2, specifically, two conductive cores which are respectively electrically connected with the two conductive shafts 411 are arranged in the supporting shaft 42, one end of the conductive core is matched with the electrifying elastic sheet 8, when the supporting shaft 42 rotates to the contact of the conductive core and the energized elastic sheet 8, the rheostat 2 is electrically connected with the optical fiber voltage sensor, the other end of the supporting shaft 42 is fixedly connected with the bevel gear 421 meshed with the placing disc 5, and the bevel gear sleeve meshed with the bevel gear 421 can be fixedly arranged on the outer edge of the placing disc 5, so that when the placing disc 5 rotates to replace different optical fiber voltage sensors, the supporting shaft 42 can be driven to rotate, and further the docking column 4 is driven to rotate, and the docking column 4 can be docked with the conductive plate 6 in the next placing groove 51 when rotating for one week, so as to realize the detection of the adjacent optical fiber voltage sensors, and because the potential of the rheostat 2 changes, the voltage value measured by the optical fiber voltage sensor is different from the voltage value measured by the previous optical fiber voltage sensor, the arrangement can realize the sensitivity detection of a plurality of optical fiber voltage sensors in a certain voltage interval, it needs to be noted that the voltage regulated by the rheostat 2 is displayed by the voltage display alone through the voltage display, so as to be convenient to compare with the voltage measured by the optical fiber voltage sensors at the same time, and the numerical values displayed by the two displays are simultaneously to indicate that the optical fiber voltage sensors are qualified.

The working principle is as follows: when the device is used, a driving motor is installed on one side of the positioning disc 1, then teeth are arranged on the peripheral wall of the placing disc 5, the output of the driving motor is fixedly connected with a driving gear meshed with the teeth, the driving motor can drive the placing disc 5 to rotate relative to the positioning disc 1 when being started, when the same optical fiber voltage sensor needs to be subjected to durable detection, the optical fiber voltage sensors are correspondingly placed in each placing groove 51, meanwhile, the voltage terminals corresponding to the optical transistors on the optical fiber voltage sensors are ensured to be in butt joint with the detection sockets 612, then, a conversion and signal processing unit and a display unit which are in butt joint with the optical fiber voltage sensors are installed on the placing disc 5, the driving motor is controlled to rotate to drive the placing disc 5 to rotate, the placing disc 5 drives the bevel gears 421 to rotate, further the docking columns 4 to rotate, the potentials on the docking columns 4 can be changed through the bidirectional 31 in the rotating process, meanwhile, the docking electrodes 41 on the docking columns can be in butt joint with the T-shaped power shafts 61 corresponding to each placing groove 51 in turn, and the sensitivity of the optical fiber voltage sensors in a certain voltage interval can be tested for a plurality of hours, and the lead screw is further, and the reliability in the monitoring of the remote cable is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The photoelectric detection equipment comprises a positioning disc (1), and is characterized in that a rheostat (2) and a resistance adjusting shaft (3) matched with the rheostat (2) are arranged below the positioning disc (1), the positioning disc (1) is rotatably connected with a butt column (4) close to the outer periphery and matched with the resistance adjusting shaft (3), a butt electrode (41) is fixedly arranged on the outer periphery wall of the butt column (4), when the butt column (4) rotates, the resistance value of the rheostat (2) changes under the action of the resistance adjusting shaft (3), a placing disc (5) is rotatably connected above the positioning disc (1), placing grooves (51) close to the outer periphery and uniformly distributed in the circumferential direction are formed in the disc surface of the placing disc (5), a conductive plate (6) matched with the butt electrode (41) is arranged in the placing grooves (51), when the placing disc (5) rotates, the butt column (4) synchronously rotates, the rotating axial directions of the butt column (4) are perpendicular and intersected, a bidirectional screw rod (31) and a wire screw rod (31) sleeved on the bidirectional screw rod (31), a wire rod (32) is arranged on the positioning disc (3), and a supporting shaft (12) is fixedly sleeved on the positioning disc (1) and is connected with a supporting shaft (12), this back shaft (42) and the both sides wall in the rectangle hole of stepping down (12) rotate to be connected, the one end of two-way lead screw (31) is passed through meshing gear train (7) and is connected with back shaft (42), the length direction of back shaft (42) is along the radial of positioning disk (1), locating hole (121) of rotating to be connected with back shaft (42) are seted up to the both sides wall in the rectangle hole of stepping down (12), the other end fixedly connected with of back shaft (42) and place bevel gear (421) of dish (5) meshing, it leads to electric chamber (1211) to have seted up circulation in locating hole (121), it leads to being provided with circular electricity shell fragment (8) in electric chamber (1211) to circulate, should lead to electric shell fragment (8) and docking electrode (41) and rheostat (2) electric connection, be provided with two flexible conductive shaft (411) on docking electrode (41), two conductive shaft (411) are parallel and are symmetrical relatively to the axis of rotation of docking post (4), be provided with T type circular electricity axle (61) on conductive plate (6), the T type of this T type circular electricity axle (61) end face and conductive shaft (411) are seted up the cooperation of action detection end (411).

2. The photoelectric detection device according to claim 1, wherein a positioning shaft (11) rotatably connected with the middle of the placing plate (5) is fixedly arranged in the middle of the upper end surface of the positioning plate (1).