CN110823189A - Nuclear power station voltage stabilizer CCTV video inspection device - Google Patents
Nuclear power station voltage stabilizer CCTV video inspection device Download PDFInfo
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- CN110823189A CN110823189A CN201911098809.1A CN201911098809A CN110823189A CN 110823189 A CN110823189 A CN 110823189A CN 201911098809 A CN201911098809 A CN 201911098809A CN 110823189 A CN110823189 A CN 110823189A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
- G01C11/36—Videogrammetry, i.e. electronic processing of video signals from a single source or from different sources to give parallax or range information
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- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a CCTV video inspection device for a voltage stabilizer of a nuclear power station, wherein a manhole is arranged on the voltage stabilizer, the inspection device comprises a fixed seat, an installation support fixedly connected with the fixed seat, a support frame arranged on the installation support, a winding mechanism arranged at the rear end part of the installation support, a reversing assembly arranged on the front end part of the support frame, an inspection camera, a cable of which the rear end is fixed on the winding mechanism and the front end part is fixedly connected with the inspection camera, the cable is flat, and various signal wires are arranged in parallel in the cable; the flat anti-twisting cable is adopted, the signal wire, the power wire, the traction wire and the flexible shaft are integrated into a whole, the cable serves as the traction wire and serves as the signal wire and the power wire, and the problem that the cable and the steel wire are wound and knotted mutually is solved.
Description
Technical Field
The invention belongs to the field of nuclear power detection equipment, and particularly relates to a CCTV video inspection device for a voltage stabilizer of a nuclear power station.
Background
Current stabiliser CCTV check out test set is by hoist engine, support frame, telescopic link, safety hook, inspection camera, cable take-up and pay-off dish, semi-flange fixed disk, 7 portions cover are constituteed, inside 7 portions cover's part need get into the stabiliser from the stabiliser manhole, total screw quantity about 514 above 7 portions cover, the inside foreign matter of leading in stabiliser is too much, greatly increased the inside risk of leading in the foreign matter of stabiliser. In the CCTV inspection process of the voltage stabilizer, a cable, a winch steel wire rope, an anti-falling steel wire rope and 4 cables in total enter from a manhole of the voltage stabilizer. During the installation and inspection processes of CCTV equipment, the steel wire ropes and the cables are easy to wind and knot. Resulting in equipment failure.
Disclosure of Invention
The invention aims to provide a CCTV video inspection device for a voltage stabilizer of a nuclear power station, which has high safety and can effectively prevent winding.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a nuclear power station stabiliser CCTV video inspection device, be equipped with the manhole on the stabiliser, inspection device include the fixing base, with fixing base looks fixed connection's installing support, install in support on the installing support, install in the winding mechanism of the rear end portion of installing support, install in reversing assembly, inspection camera, rear end on the preceding tip of support are fixed in winding mechanism on and preceding tip with inspection camera fixed connection's cable, the cable is the platykurtic, its inside multiple signal line that sets up side by side, winding mechanism includes two relative and fixed set's receipts line boards, forms the coiling space between the receipts line board, winding mechanism still including rotate connect in receive line board and be in take-up reel in the coiling space, install in receive line board and with the driving motor of the pivot looks transmission connection of receipts line board, The anti-falling device comprises a first rotation stopping gear, a mechanical anti-falling component and an electromagnetic band-type brake, wherein the first rotation stopping gear is coaxially and fixedly connected with a rotating shaft of the take-up reel, the mechanical anti-falling component is arranged on the take-up plate and meshed with the first rotation stopping gear, and the electromagnetic band-type brake is connected with the rotating shaft of the take-up reel and connected with the driving motor in series.
Optimized, machinery prevent weighing down the subassembly include with receive line board fixed connection's casing, rotate connect in receive on the line board and a tip wear to locate centrifugal ratchet axle, fixed cover in the casing are located on the centrifugal ratchet axle its with casing fixed connection's ratchet, install eccentrically in the tip of centrifugal ratchet axle just is located the pawl of ratchet inner circle and with the gear is only changeed to the coaxial fixed connection's of centrifugal ratchet axle second, the second only change the gear with first only change the gear and mesh mutually.
Optimized, it is left side board and right side board respectively to receive the line board, and the coiling space is located the left side board with the inboard of right side board, the electromagnetism band-type brake with the machinery is prevented weighing down the subassembly and is located the outside of left side dish.
Further, the motor is arranged on the outer side of the right side plate, and the electromagnetic band-type brake is arranged on the outer side of the left side plate.
Optimized, the fixing base include with the arc bottom plate of manhole inside wall laminating, with the flange assorted flange lid of manhole periphery, the arc bottom plate with flange lid integrated into one piece, the fixed connection hole has been seted up on the flange lid, the flange lid with the flange of manhole periphery passes through fixing bolt looks fixed connection.
Furthermore, the mounting bracket comprises a middle supporting plate fixedly connected with the flange cover and side frames fixedly connected with two sides of the middle supporting plate, and the side frames are respectively and fixedly connected with the take-up plate.
Furthermore, a guide plate attached to the arc-shaped bottom plate is arranged on the middle supporting plate, and a guide cylinder with an axis parallel to that of the manhole is arranged on the guide plate.
Still further, the support frame includes the bracing piece of wearing to locate in the uide bushing, be fixed in respectively on bracing piece rear end and the front end and be used for preventing back stop collar and the preceding stop collar that the bracing piece drops from the uide bushing.
Still further, the reversing assembly comprises a reversing mounting plate fixedly connected with the front limiting sleeve and arranged in parallel with the take-up plate, and a reversing roller rotatably connected to the reversing mounting plate, wherein the rotating axis of the reversing roller is parallel to that of the take-up reel.
Preferably, the winding mechanism further comprises a cable outlet restraint located between the wire take-up plates and above the rear end of the support frame.
The invention has the beneficial effects that: the invention solves the problem that the traditional voltage stabilizer television inspection equipment is easy to introduce foreign matters into the voltage stabilizer cylinder due to too many components entering the voltage stabilizer cylinder; the number of loose parts is reduced by 93%; the problem that the cable cannot be stored in the traditional voltage stabilizer television inspection cable is solved; the carbon fiber composite material is adopted in a large amount, so that the problem that the television inspection equipment for the surfacing layer on the inner surface of the traditional voltage stabilizer is overlarge in weight is solved, and the weight is reduced by 80%; the problem that the mounting and dismounting processes of the television inspection equipment for the surfacing layer on the inner surface of the traditional voltage stabilizer are complex is solved; the special flat cable which is formed by blending the video cable and the anti-twisting flexible shaft and is specially designed is adopted, and adverse effects caused by independent work of the traditional metal telescopic rod and the video cable are replaced; the flat anti-twisting cable is adopted, the signal wire, the power wire, the traction wire and the flexible shaft are integrated into a whole, the cable serves as the traction wire and serves as the signal wire and the power wire, and the problem that the cable and the steel wire are wound and knotted mutually is solved.
Drawings
FIG. 1 is a front view of the winding mechanism of the present invention;
FIG. 2 is a cross-sectional view A-A of the winding mechanism of the present invention;
FIG. 3 is a schematic illustration of a mechanical fall arrest assembly;
FIG. 4 is a schematic structural diagram of a CCTV video inspection device of a nuclear power station voltage stabilizer;
fig. 5 is a schematic view of a connection structure of the mounting bracket, the fixing seat and the supporting frame with the manhole flange.
Fig. 6 is a schematic structural view of the cable.
Detailed Description
The invention is described in detail below with reference to embodiments shown in the drawings to which:
as shown in fig. 4-5, a manhole 6 is provided on the voltage stabilizer 0, and the CCTV video inspection apparatus for the nuclear power plant voltage stabilizer includes a fixing base 9, a mounting bracket 8 fixedly connected to the fixing base 9, a support frame 7 mounted on the mounting bracket 8, a winding mechanism 1 mounted at a rear end portion of the mounting bracket 8, a reversing assembly 2 mounted at a front end portion of the support frame 7, an inspection camera 3, a cable 4 having a rear end fixed to the winding mechanism 1 and a front end portion fixedly connected to the inspection camera 3, and a cable outlet restraint 5 located between the line collecting plates and above a rear end of the support frame 7.
The cable 4 is flat, a plurality of signal lines are arranged in parallel in the cable 4, as shown in fig. 6, the cable 4 comprises a signal line, a flexible shaft and a sheath 46 coated on the periphery of the signal line and the flexible shaft, the signal line and the high-definition video electric wire are integrated into a whole, specifically, as shown in fig. 6, the high-definition video electric wire 41 is positioned in the middle, and two sides are sequentially a 0.75 mm signal line 42, a 0.5 mm signal line 43, a 0.25mm signal line 44 and a flexible shaft 45 from inside to outside, the cable 4 serves as a pull line and a signal line and a power line,
as shown in fig. 1-3, the winding mechanism 1 of the CCTV video inspection apparatus for the voltage stabilizer of the nuclear power station includes two opposite and fixedly disposed wire winding plates 11, a winding space 12 is formed between the wire winding plates 11, the winding mechanism 1 further includes a wire winding disc 13 rotatably connected to the wire winding plates 11 and located in the winding space 12, a driving motor 14 mounted on the wire winding plate 11 and in transmission connection with a rotating shaft 15 of the wire winding disc 13, a first rotation stopping gear 16 coaxially and fixedly connected with the rotating shaft 15 of the wire winding disc 13, a mechanical anti-falling assembly 17 mounted on the wire winding plate 11 and engaged with the first rotation stopping gear 16, and an electromagnetic band-type brake 18 connected with the rotating shaft 15 of the wire winding disc 13 and connected with the driving motor 14 in series. The mechanical anti-falling assembly 17 comprises a shell 171 fixedly connected with a line collecting plate 11, a ratchet 173 rotationally connected with the line collecting plate 171 and with one end penetrating through a centrifugal ratchet shaft 172 in the shell 171, a fixed sleeve arranged on the centrifugal ratchet shaft 172 and fixedly connected with the shell 171, a pawl 174 eccentrically arranged at the end of the centrifugal ratchet shaft 172 and positioned at the inner ring of the ratchet 173, and a second rotation stopping gear 175 coaxially and fixedly connected with the centrifugal ratchet shaft 172, wherein the second rotation stopping gear 175 is meshed with the first rotation stopping gear 16, the pawls 174 are two and are arranged in central symmetry about the circle center of the end surface of the centrifugal ratchet shaft 172, the mechanical anti-falling assembly further comprises a limiting lock pin 176 used for limiting the pawl 174 to swing downwards to cause interference, and the pawl 174 is rotationally connected with the end surface of the centrifugal ratchet shaft 172 and needs to overcome certain resistance when rotating, when the centrifugal ratchet shaft 172 rotates too fast, the pawls 174 are thrown out to engage with the ratchet 173 and are braked by the ratchet, so that the centrifugal ratchet shaft 172, the second rotation stop gear 175, the first rotation stop gear 16 and the take-up reel 13 are braked. The line collecting plates 11 are respectively a left side plate 111 and a right side plate 112, the winding space 12 is positioned on the inner sides of the left side plate 111 and the right side plate 112, and the electromagnetic band-type brake and mechanical anti-falling assembly 17 is positioned on the outer side of the left side plate. The motor is arranged on the outer side of the right side plate 112, and the electromagnetic band-type brake is arranged on the outer side of the left side plate 111.
The fixing seat 9 comprises an arc-shaped bottom plate 91 attached to the inner side wall of the manhole 6 and a flange cover 92 matched with the flange 60 on the periphery of the manhole 6, the arc-shaped bottom plate 91 and the flange cover 92 are integrally formed, a fixing and connecting hole 93 is formed in the flange cover 92, and the flange cover 92 and the flange 60 on the periphery of the manhole 6 are fixedly connected through a fixing bolt 94. The mounting bracket 8 comprises a middle support plate 81 fixedly connected with the flange cover 92 and side frames 82 fixedly connected with two sides of the middle support plate 81, and the side frames 82 are respectively and fixedly connected with the take-up plate 11. The middle supporting plate 81 is fixedly connected with the flange 60 through a fixing bolt 94 penetrating through the connecting hole 93, a guide plate 83 attached to the arc-shaped bottom plate 91 is arranged on the middle supporting plate, and a guide cylinder 84 with the axis parallel to the axis of the manhole 6 is arranged on the guide plate 83. The support frame 7 includes a support rod 71 inserted into the guide sleeve 84, and a rear position-limiting sleeve 72 and a front position-limiting sleeve 73 fixed to the rear end and the front end of the support rod 71 respectively for preventing the support rod 71 from falling off from the guide sleeve. The reversing assembly 2 comprises a reversing mounting plate 21 fixedly connected with the front limiting sleeve 73 and arranged in parallel with the take-up plate 11, and a reversing roller 22 rotatably connected to the reversing mounting plate 21, wherein the rotating axis of the reversing roller 22 is parallel to the rotating axis of the take-up reel 13. The guide cylinder 84 is connected with a locking bolt 85 penetrating through the side wall of the guide cylinder by a bolt, the pressing force of the locking bolt 85 on the supporting rod 71 is adjusted by adjusting the connecting depth of the locking bolt 85 and the side wall of the guide cylinder, so that the position of the supporting rod 71 in the guide cylinder 84 is adjusted, two supporting rods 71 are arranged in parallel, two guide cylinders 84, two front limiting sleeves 73 and two rear limiting sleeves 72 are arranged, a reinforcing plate 74 is fixed between the front limiting sleeves 73, and a reinforcing plate 74 is also fixed between the rear limiting sleeves.
On-site voltage stabilizer television inspection implementation:
a) and a fixing seat is arranged on the manhole of the voltage stabilizer and is fastened on the manhole surface by a fixing bolt made of nylon material.
b) The mounting seat is fixed on the fixing seat and is tightly matched with the flange plate and the manhole flange through the fixing bolt, and the support frame is mounted on the mounting seat.
c) The winding mechanism is installed on the installation seat, the winding mechanism and the installation seat are fixed through the quick locking structure, and the winding mechanism and the installation seat are fastened together through the quick locking structure.
d) And assembling the camera and the flat cable together. The camera and the flat cable are designed into a quick locking structure, and the camera and the cable are connected together by the quick locking structure.
e) And the flat cable is wound around the reversing rollers at the tail end of the bracket. The camera is suspended inside the cylinder of the voltage stabilizer by a flat cable. The up-and-down movement track of the flat cable is designed to coincide with the axis of the cylinder of the voltage stabilizer.
f) And a servo motor of the winding mechanism drives the winding drum to rotate, so as to drive the flat cable to move up and down.
g) The camera is provided with two degrees of freedom of pitching and rotating motion and is driven by a servo motor.
h) The up and down movement of the flat cable, the rotation of the camera, and the tilting motion combine to complete the video inspection of the inner surface of the potentiostat.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides a nuclear power station stabiliser CCTV video inspection device, be equipped with the manhole on the stabiliser, inspection device include the fixing base, with fixing base looks fixed connection's installing support, install in support on the installing support, install in the winding mechanism of the back tip of installing support, install in switching-over subassembly, inspection camera, rear end on the preceding tip of support are fixed in winding mechanism is last and preceding tip with inspection camera fixed connection's cable, its characterized in that: the cable is the platykurtic, and its inside sets up multiple signal line side by side, winding mechanism includes two relative and fixed receipts line boards that set up, receives and forms the coiling space between the line board, winding mechanism still including rotate connect in receive on the line board and be in take-up reel in the coiling space, install in receive on the line board and with the pivot of take-up reel looks transmission connection driving motor, with the coaxial fixed connection's of pivot of take-up reel first spline gear, install in receive on the line board and with first spline gear engagement's machinery prevents weighing down the subassembly, with the pivot of take-up reel be connected and with the electromagnetism band-type brake that driving motor established ties.
2. The winding mechanism of a nuclear power plant regulator CCTV video inspection device according to claim 1, characterized in that: machinery prevent weighing down the subassembly include with receive line board fixed connection's casing, rotate connect in receive on the line board and a tip wear to locate centrifugal ratchet axle, fixed cover in the casing are located on the centrifugal ratchet axle its with casing fixed connection's ratchet, install eccentrically in the tip of centrifugal ratchet axle just is located the pawl of ratchet inner circle and with the gear is only changeed to the coaxial fixed connection's of centrifugal ratchet axle second, the second only change the gear with first only change the gear and mesh mutually.
3. The winding mechanism of a nuclear power plant regulator CCTV video inspection device according to claim 1, characterized in that: the take-up plate is left side board and right side board respectively, and the coiling space is located the left side board with the inboard of right side board, the electromagnetism band-type brake with the machinery is prevented weighing down the subassembly and is located the outside of left side dish.
4. The winding mechanism of a nuclear power plant regulator CCTV video inspection device according to claim 3, characterized in that: the motor is arranged on the outer side of the right side plate, and the electromagnetic band-type brake is arranged on the outer side of the left side plate.
5. The winding mechanism of a nuclear power plant regulator CCTV video inspection device according to claim 1, characterized in that: the fixing base include with the arc bottom plate of manhole inside wall laminating, with the flange assorted flange lid of manhole periphery, the arc bottom plate with flange lid integrated into one piece, the fixed connection hole has been seted up on the flange lid, the flange lid with the flange of manhole periphery passes through fixing bolt looks fixed connection.
6. The winding mechanism of a nuclear power plant regulator CCTV video inspection device according to claim 5, characterized in that: the mounting bracket comprises a middle supporting plate fixedly connected with the flange cover and side frames fixedly connected with two sides of the middle supporting plate, and the side frames are respectively and fixedly connected with the take-up plate.
7. The winding mechanism of a nuclear power plant regulator CCTV video inspection device according to claim 5, characterized in that: the middle supporting plate is provided with a guide plate attached to the arc-shaped bottom plate, and the guide plate is provided with a guide cylinder with an axis parallel to that of the manhole.
8. The winding mechanism of a nuclear power plant regulator CCTV video inspection device according to claim 7, characterized in that: the support frame is including wearing to locate the bracing piece in the uide bushing, be fixed in respectively on bracing piece rear end and the front end and be used for preventing back stop collar and the preceding stop collar that the bracing piece drops from the uide bushing.
9. The winding mechanism of a nuclear power plant regulator CCTV video inspection device according to claim 8, characterized in that: the reversing assembly comprises a reversing mounting plate fixedly connected with the front limiting sleeve and arranged in parallel with the take-up plate, and a reversing roller rotatably connected to the reversing mounting plate, and the rotating axis of the reversing roller is parallel to that of the take-up reel.
10. The winding mechanism of a nuclear power plant regulator CCTV video inspection device according to claim 1, characterized in that: the winding mechanism further comprises a cable outlet restraint device which is located between the wire collecting plates and above the rear end of the support frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911098809.1A CN110823189A (en) | 2019-11-12 | 2019-11-12 | Nuclear power station voltage stabilizer CCTV video inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911098809.1A CN110823189A (en) | 2019-11-12 | 2019-11-12 | Nuclear power station voltage stabilizer CCTV video inspection device |
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| Publication Number | Publication Date |
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| CN110823189A true CN110823189A (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911098809.1A Pending CN110823189A (en) | 2019-11-12 | 2019-11-12 | Nuclear power station voltage stabilizer CCTV video inspection device |
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| CN (1) | CN110823189A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112198224A (en) * | 2020-10-30 | 2021-01-08 | 中广核检测技术有限公司 | Automatic ultrasonic inspection system for nuclear power |
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| CN201278277Y (en) * | 2008-10-20 | 2009-07-22 | 江苏天诚线缆集团有限公司 | High speed elevator moving electric cable |
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Application publication date: 20200221 |
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