CN112444185A - Contact displacement measuring device for power grid - Google Patents
Contact displacement measuring device for power grid Download PDFInfo
- Publication number
- CN112444185A CN112444185A CN202110132910.5A CN202110132910A CN112444185A CN 112444185 A CN112444185 A CN 112444185A CN 202110132910 A CN202110132910 A CN 202110132910A CN 112444185 A CN112444185 A CN 112444185A
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- rotating body
- transmission
- shaft
- connecting block
- push plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
A contact displacement measurement device for an electrical power grid, comprising: assembling pipes, transmission elements, connecting blocks, ropes and rotary sensors; the assembly pipe is arranged close to a pull rod in the circuit breaker; the transmission element is sleeved on the assembly pipe and is in shaft connection with the assembly pipe, and the position of the transmission element corresponds to that of the breaker; the connecting block is tubular, and a push plate is arranged on the inner wall of the connecting block; one end of the rope is connected with a pull rod of the circuit breaker, and the other end of the rope is connected to the outer wall surface of the connecting block; the rotary sensor is arranged at the other end of the assembling pipe, a shaft of the rotary sensor penetrates through the axis of the connecting block, and a transmission plate is fixed on the shaft of the rotary sensor; the driving plate is located in the connecting block and attached to the push plate.
Description
Technical Field
The invention relates to the technical field of displacement monitoring, in particular to a contact displacement measuring device for a power grid.
Background
At present, indoor circuit breakers develop towards miniaturization, higher and higher requirements are provided for the performance and the size of the circuit breakers, good contact property of the closing action of a main circuit needs to be ensured in the working process of the circuit breakers, the opening action can be quickly separated in place, and therefore the movement stroke of a moving contact of the main circuit needs to be measured at variable time so as to be convenient for the subsequent adjustment of the position of the moving contact, a displacement sensor is directly placed in the circuit breaker in the former measuring mode, when the circuit breakers stop working, the movement stroke of the moving contact in the circuit breaker is detected by controlling the opening and closing action of the circuit breaker, but as the size of the circuit breaker is continuously reduced, the internal space is also continuously reduced, the previous manual measurement or the measurement of placing the displacement sensor is not easy to realize, the difficulty of the displacement measurement is increased, and meanwhile, the current mode is to detect one circuit breaker by using, this detection approach is highly complex.
Disclosure of Invention
Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to detect individual circuit breakers by a rotation sensor located outside the circuit breakers, and the present invention achieves the above objects by the following means.
A contact displacement measurement device for an electrical power grid, comprising: assembling pipe, connecting block, transmission element, rope, rotation sensor.
The assembly pipe is arranged close to a pull rod in the circuit breaker.
One end of the connecting block is sleeved on the assembling pipe and connected with the assembling pipe through a shaft, and the other end of the connecting block is fixed on the circuit breaker.
The connecting block is tubulose, and the connecting block inner wall is provided with the push pedal.
One end of the rope is connected with a pull rod of the circuit breaker, and the other end of the rope is connected to the outer wall surface of the connecting block.
The rotary sensor is arranged at the other end of the assembling pipe, a shaft of the rotary sensor penetrates through the axis of the connecting block, and a transmission plate is fixed on the shaft of the rotary sensor.
The driving plate is located in the connecting block and attached to the push plate.
The invention has the beneficial effects that:
according to the invention, the pull rod and the transmission element outside the circuit breaker are connected through two ends of the rope, when the pull rod moves, the rope pulls the transmission element to rotate, the transmission element drives the shaft to rotate, so that the shaft rotates at a certain angle, an electric signal proportional to the moving distance of the rope is output through the rotation sensor, and the moving distance and the speed of the pull rod can be obtained by measuring the output signal, so that the problems that the existing circuit breaker is small in size and cannot be internally provided with a sensor are solved;
according to the invention, through the matching of the four transmission elements and the rotary sensor, the real-time detection of the contacts in the four circuit breakers is realized, so that the complexity of detecting the movement length of the contacts in the circuit breakers is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic side view of the present invention.
FIG. 3 is a partial structural schematic diagram of the present invention.
FIG. 4 is a schematic view of the internal structure of the transmission element of the present invention.
Fig. 5 is a schematic view of the structure of the rotation sensor of the present invention.
FIG. 6 is a schematic view of the internal structure of the present invention.
FIG. 7 is a schematic view of the transmission element acting as a rotation sensor in the present invention.
As shown in fig. 1-7:
1-a circuit breaker; 11-a pull rod; 2-assembling a pipe; 3, connecting blocks; 4-a transmission element; 5-a rope; 6-a rotation sensor; 7-a pull rod; 41-a rotating body; 42-a push plate; 43-a counterweight block; 61-axis; 62-drive plate.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are easily implemented by those having ordinary skill in the art to which the present invention pertains, however, the present invention may be implemented in various forms, and thus, the present invention is not limited to the embodiments described below, and in addition, components not connected to the present invention will be omitted from the drawings for more clear description of the present invention.
As shown in fig. 1-2, a contact displacement measuring device for an electrical power grid comprises: assembly line 2, connection block 3, transmission element 4, rope 5, rotation sensor 6.
The circuit breaker 1 is illustrated by four in this document.
The number of the mounting pipes 2 is three, and the three mounting pipes 2 are horizontally arranged and close to the pull rods 11 in the four circuit breakers 1.
The assembly pipe 2 is fixed to the circuit breaker 1 by the transmission element 4, and can also be fixed to a wall by the transmission element 4.
As shown in fig. 3, the number of the connecting blocks 3 is three, one end of each of the three connecting blocks 3 is sleeved on each of the assembling pipes 2 for shaft connection, the assembling pipes 2 can rotate in the connecting blocks 3, and the other end of each of the connecting blocks 3 is fixed on the circuit breaker 1.
As shown in fig. 4, the number of the transmission elements 4 is four, and each transmission element 4 includes: rotating body 41, push plate 42, balancing weight 43.
The rotating body 41 is tubular, and the through holes at both sides of the rotating body 41 extend toward the axis of the rotating body 41 to reduce the diameter of the through holes at both sides of the rotating body 41, and specifically, the through holes of the rotating body 41 are fitted around one end of the assembly pipe 2 to be axially coupled.
One end of the push plate 42 is connected to the inner wall of the rotating body 41, and the other end extends toward the axis of the rotating body 41.
The push plates 42 in the four rotating bodies 41 are staggered with the rotating bodies 41 as axes, and the staggered angles of the adjacent push plates 42 are the same.
The weight 43 is provided on the lower end wall surface of the rotating body 41 and functions to allow the push plate 42 to return to an initial position by the weight 43 after the rotating body 41 rotates while maintaining the balance of the rotating body 41 and maintaining the push plate 42 at a designated angle.
One end of the rope 5 is connected with the pull rod 11 of the circuit breaker 1, and the other end is connected with the wall surface of the rotary body 41 on the opposite side along the moving direction of the pull rod 11.
When the brake is released, the pull rod 11 moves to one side, thereby pulling the rope 5 to rotate the rotating body 41.
The rotation sensor 6 is provided at the other end of the mounting pipe 2 in the horizontal direction, a shaft 61 of the rotation sensor 6 penetrates the axial centers of the plurality of rotating bodies 41, and four transmission plates 62 are fixed to the shaft 61 as shown in fig. 5.
The four driving plates 62 are respectively located in the four rotating bodies 41, the four driving plates 62 are staggered by taking the shaft 61 as an axis, and staggered angles among the four driving plates 62 are the same, wherein the four driving plates 62 are respectively attached to the four push plates 42, and the four driving plates 62 are respectively attached to one surfaces of the four push plates 42 along the rotating direction.
The shaft 61 has a weight greater on the lower side than on the upper side, and functions to bring the four driving plates 62 back to the initial position after the shaft 61 rotates.
The working principle of the invention is as follows:
when a breaker 1 is opened, as shown in fig. 7, the pull rod 11 of the breaker 1 moves to one side, thereby pulling the rope 5 to drive the rotating body 41 to rotate, the push plate 42 in the rotating body 41 pushes a driving plate 62, thereby the shaft 61 rotates at a certain angle, the rotating sensor 6 outputs an electric signal proportional to the moving distance of the rope 5, the output signal is measured to obtain the moving distance and speed of the pull rod 11, thereby the moving distance of the contact is detected in real time when the breaker 1 is opened every time, and after the breaker is closed, the push plate 42 and the driving plate 62 return to the initial position through the counterweight 43 and the shaft 61.
Claims (4)
1. A contact displacement measurement device for an electrical power grid, comprising: the device comprises an assembly pipe (2), a connecting block (3), a transmission element (4), a rope (5) and a rotation sensor (6);
the method is characterized in that:
the assembly pipe (2) is arranged close to a pull rod (11) in the circuit breaker (1);
one end of the connecting block (3) is sleeved on the assembling pipe (2) and is in shaft connection, and the other end of the connecting block is fixed on the circuit breaker (1);
the transmission element (4) comprises: a rotating body (41) and a push plate (42);
the rotating body (41) is tubular, and a through hole of the rotating body (41) is sleeved at one end of the assembling pipe (2) for shaft connection;
a push plate (42) is arranged in the rotating body (41), one end of the push plate (42) is connected with the inner wall of the rotating body (41), and the other end of the push plate (42) extends towards the axis of the rotating body (41);
one end of the rope (5) is connected with a pull rod (11) of the circuit breaker (1), and the other end of the rope is connected to the outer wall surface of the rotating body (41);
the rotation sensor (6) is arranged at the other end of the assembly pipe (2), a shaft (61) of the rotation sensor (6) penetrates through the axis of the rotating body (41), and a transmission plate (62) is fixed on the shaft (61) of the rotation sensor (6);
the transmission plate (62) is positioned in the rotating body (41), and the transmission plate (62) is attached to the push plate (42).
2. A contact displacement measuring device for an electrical power grid according to claim 1, characterized in that: the number of the assembling pipes (2) is multiple, and the assembling pipes (2) are connected end to end;
the number of the connecting blocks (3) is the same as that of the assembling pipes (2), and the positions of the connecting blocks (3) correspond to the circuit breakers (1) one by one;
the number of the transmission elements (4) is multiple, and the rotating bodies (41) are sleeved at the connection positions of the two assembly pipes (2) respectively;
the push plates (42) in the plurality of rotary bodies (41) are staggered by taking the rotary bodies (41) as axes, and the staggered angles of two adjacent push plates (42) are the same;
the number of the transmission plates (62) is the same as that of the push plates (42), the transmission plates (62) are staggered by taking the shaft (61) as the axis, the staggered angles between every two adjacent transmission plates (62) are the same, and each transmission plate (62) is attached to each push plate (42) respectively.
3. A contact displacement measuring device for an electrical power grid according to claim 1, characterized in that: a balancing weight (43) is arranged in the rotating body (41), and the balancing weight (43) is arranged on the lower end wall surface of the rotating body (41).
4. A contact displacement measuring device for an electrical power grid according to claim 1, characterized in that: the weight of the lower side of the shaft (61) is greater than that of the upper side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110132910.5A CN112444185B (en) | 2021-02-01 | 2021-02-01 | Contact displacement measuring device for power grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110132910.5A CN112444185B (en) | 2021-02-01 | 2021-02-01 | Contact displacement measuring device for power grid |
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| Publication Number | Publication Date |
|---|---|
| CN112444185A true CN112444185A (en) | 2021-03-05 |
| CN112444185B CN112444185B (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110132910.5A Active CN112444185B (en) | 2021-02-01 | 2021-02-01 | Contact displacement measuring device for power grid |
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| CN (1) | CN112444185B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295120A (en) * | 2021-05-25 | 2021-08-24 | 安徽得润电气技术有限公司 | Circuit breaker contact displacement sensor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5368263A (en) * | 1976-11-29 | 1978-06-17 | Sharp Corp | Electron scale |
| US4186490A (en) * | 1977-06-16 | 1980-02-05 | Stanley-Mabo | Tape-type linear measuring instrument |
| CN2101846U (en) * | 1991-03-22 | 1992-04-15 | 王月红 | Linear shift sensor |
| CN202329555U (en) * | 2011-11-10 | 2012-07-11 | 陶兴建 | Device for real-timely monitoring displacement |
| CN203479261U (en) * | 2013-06-17 | 2014-03-12 | 中国人民解放军南京炮兵学院 | Line-pulling displacement sensor |
| CN205898053U (en) * | 2016-06-23 | 2017-01-18 | 陕西宝成航空仪表有限责任公司 | Rotation type linear displacement sensor with stop device |
-
2021
- 2021-02-01 CN CN202110132910.5A patent/CN112444185B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5368263A (en) * | 1976-11-29 | 1978-06-17 | Sharp Corp | Electron scale |
| US4186490A (en) * | 1977-06-16 | 1980-02-05 | Stanley-Mabo | Tape-type linear measuring instrument |
| CN2101846U (en) * | 1991-03-22 | 1992-04-15 | 王月红 | Linear shift sensor |
| CN202329555U (en) * | 2011-11-10 | 2012-07-11 | 陶兴建 | Device for real-timely monitoring displacement |
| CN203479261U (en) * | 2013-06-17 | 2014-03-12 | 中国人民解放军南京炮兵学院 | Line-pulling displacement sensor |
| CN205898053U (en) * | 2016-06-23 | 2017-01-18 | 陕西宝成航空仪表有限责任公司 | Rotation type linear displacement sensor with stop device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295120A (en) * | 2021-05-25 | 2021-08-24 | 安徽得润电气技术有限公司 | Circuit breaker contact displacement sensor |
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| Publication number | Publication date |
|---|---|
| CN112444185B (en) | 2021-12-10 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20211125 Address after: 532600 No. 137, Pingshan Road, Pingxiang City, Chongzuo City, Guangxi Zhuang Autonomous Region Applicant after: CHONGZUO PINGXIANG POWER SUPPLY BUREAU OF GUANGXI POWER GRID CO.,LTD. Address before: 210019 70-79, Shaohua workshop comprehensive business district, 1 / F, 89 Pingliang street, Jianye District, Nanjing City, Jiangsu Province Applicant before: Nanjing feimeisi Intelligent Technology Co.,Ltd. |
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| GR01 | Patent grant |