CN112816865A - High tension switchgear circuit breaker sound contact travel measuring device - Google Patents
High tension switchgear circuit breaker sound contact travel measuring device Download PDFInfo
- Publication number
- CN112816865A CN112816865A CN202110415598.0A CN202110415598A CN112816865A CN 112816865 A CN112816865 A CN 112816865A CN 202110415598 A CN202110415598 A CN 202110415598A CN 112816865 A CN112816865 A CN 112816865A
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- contact
- movable contact
- fixedly connected
- plug
- sliding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
- G01R31/3274—Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3275—Fault detection or status indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
- G01R31/69—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board of terminals at the end of a cable or a wire harness; of plugs; of sockets, e.g. wall sockets or power sockets in appliances
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a contact stroke measuring device for moving and static contacts of a high-voltage switch cabinet breaker, and relates to the technical field of switch cabinets. The invention comprises a shell, wherein a sliding seat is fixedly connected to the inner wall of the shell, a guide groove is formed in the upper surface of the sliding seat, concave sliding grooves are formed in two side surfaces of the sliding seat, and a movable contact is connected in the sliding seat in a sliding mode. According to the invention, the movable contact is used to replace a traditional fixed contact, and the movable contact can reciprocate, so that the movable contact can still be inserted into the plug when the plug with different lengths is replaced, the application range is enlarged, and the adaptability is stronger; in the practical use process, the plug is fixed, so that the movable contact can be adjusted to be close to the plug, the movable contact is completely inserted into the plug, the situation of incomplete insertion is avoided, and the possibility of circuit failure is reduced; according to the invention, by using the indicator lamp, when the elastic contact is in short circuit or open circuit, the indicator lamp is turned off to remind a worker.
Description
Technical Field
The invention belongs to the technical field of switch cabinets, and particularly relates to a contact stroke measuring device for moving and static contacts of a breaker of a high-voltage switch cabinet.
Background
The switch cabinet is an electrical device, the external line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, and each branch is arranged according to the requirement. Such as meters, automatic controls, magnetic switches of motors, various alternating current contactors and the like, and also high-voltage chamber and low-voltage chamber switch cabinets and high-voltage buses, such as power plants and the like. The switch cabinet generally contains a plurality of circuit breakers, and in order to ensure that the circuit breakers can work stably, moving and static contacts of the circuit breakers are required to be contacted in place.
However, when the moving and static contacts of the existing circuit breaker are plugged, the situation that the plugging is not in place due to the fact that the contact stroke of the moving and static contacts is not known occurs frequently, even the circuit is damaged seriously, and particularly the situation is easy to occur when the contacts with different sizes are replaced.
Disclosure of Invention
The invention aims to provide a contact stroke measuring device for moving and fixed contacts of a high-voltage switch cabinet circuit breaker, which solves the problems that the moving and fixed contacts of the existing circuit breaker are not plugged in place due to the fact that the contact stroke of the moving and fixed contacts is not known, and even a circuit is damaged seriously, and the situation is easy to occur particularly when the contacts with different sizes are replaced.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a contact stroke measuring device for moving and fixed contacts of a high-voltage switch cabinet breaker, which comprises a shell, wherein a sliding seat is fixedly connected to the inner wall of the shell, a guide groove is formed in the upper surface of the sliding seat, concave sliding grooves are formed in two side surfaces of the sliding seat, a movable contact is slidably connected in the sliding seat, concave sliding blocks are fixedly connected to two sides of the movable contact and are slidably connected with the concave sliding grooves, a reciprocating seat is fixedly connected to the upper surface of the movable contact, a screw rod is connected with the reciprocating seat in a threaded manner and is rotatably connected with the shell, a distance sensor is further installed in the reciprocating seat, a plug is further slidably connected with the sliding seat, a movable rod is slidably connected in the plug, an elastic contact is fixedly connected to one end of the movable; in the structure, the movable contact can move back and forth along the screw, which shows that the position of the movable contact in the sliding seat can be adjusted, and the device changes the traditional fixed contact into the movable contact, so that the movable contact can be used for measuring the contact stroke of the movable contact and the fixed contact with different lengths, and the situation of contact looseness can not occur.
One end of the screw is fixedly connected with a second gear, the second gear is meshed with a first gear, one end face of the first gear is fixedly connected with a connecting shaft, the upper end of the connecting shaft is fixedly connected with a knob, and the knob is arranged on the outer side of the shell; in the structure, the movable contact can be indirectly driven to reciprocate by rotating the knob.
Preferably, a display screen is mounted on the upper surface of the shell and electrically connected with the distance sensor; in the structure, the distance sensor can sense the distance between the movable contact and the inner wall of the shell, and then the numerical value of the distance sensor is displayed on the display screen.
Preferably, one end of the shell is also fixedly connected with an annular frame, and a plurality of positioning holes are formed in one surface of the annular frame; in the structure, the positioning hole is used for positioning and mounting.
Preferably, a locking frame is fixedly connected to one surface of the shell, and locking screws are in threaded connection with two sides of the locking frame; in the structure, the plug is required to be fixed in the stroke measuring process, so that the cylinder locking screws tightly abut against two sides of the plug to keep the plug in a static state.
Preferably, a plurality of second springs are further installed in the movable contact, one ends of the second springs are fixedly connected with friction balls, and the friction balls are connected with the movable contact in a sliding manner; in the structure, the friction ball can press the plug, so that the resistance is increased.
Preferably, a limit groove is further formed in the movable contact, the limit groove is in sliding fit with a limit block, and the limit block is fixedly connected with the friction ball; in the structure, the friction ball can only move up and down in the range of the limit groove by the limit block.
Preferably, a first spring is arranged on the peripheral side surface of the movable rod; in the above structure, the resilient characteristic of the first spring may press the elastic contact, so that the elastic contact may move toward the movable contact.
Preferably, an indicator light is installed at one end of the plug, and the indicator light is electrically connected with the elastic contact; in the structure, the indicator lamp is extinguished when the elastic contact is short-circuited or broken and the like, so that a worker is reminded.
The invention has the following beneficial effects:
according to the invention, the movable contact is used to replace a traditional fixed contact, and the movable contact can reciprocate, so that the movable contact can still be inserted into the plug when the plug with different lengths is replaced, the application range is enlarged, and the adaptability is stronger; in the practical use process, the plug is fixed, so that the movable contact can be adjusted to be close to the plug, the movable contact is completely inserted into the plug, the situation of incomplete insertion is avoided, and the possibility of circuit failure is reduced; according to the invention, by using the indicator lamp, when the elastic contact is in short circuit or open circuit, the indicator lamp is turned off to remind a worker.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a three-dimensional structure of a device for measuring contact travel of a moving contact and a fixed contact of a circuit breaker of a high-voltage switch cabinet, which is disclosed by the invention;
FIG. 2 is a front view of a contact stroke measuring device of a moving contact and a fixed contact of a high-voltage switch cabinet breaker of the invention;
FIG. 3 is a side view of a contact stroke measuring device of a moving contact and a fixed contact of a high-voltage switch cabinet breaker of the invention;
FIG. 4 is a cross-sectional view taken along the plane A-A in FIG. 2;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 6 is a three-dimensional view of a movable contact of the contact stroke measuring device of the movable and fixed contacts of the high-voltage switch cabinet breaker of the invention;
FIG. 7 is an enlarged view of area A of FIG. 4;
fig. 8 is a schematic structural diagram of a plug of the device for measuring the contact stroke of the moving contact and the fixed contact of the circuit breaker of the high-voltage switch cabinet.
In the drawings, the components represented by the respective reference numerals are listed below:
1-shell, 101-positioning hole, 102-locking frame, 103-annular frame, 2-knob, 201-connecting shaft, 202-first gear, 3-display screen, 4-locking screw, 5-plug, 501-first spring, 502-movable rod, 503-elastic contact, 504-indicator light, 6-screw, 601-second gear, 7-sliding seat, 701-guide groove, 702-concave sliding groove, 8-movable contact, 801-reciprocating seat, 802-distance sensor, 803-concave sliding block, 804-second spring, 805-friction ball, 806-limiting block and 807-limiting groove.
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.
In the description of the present invention, it is to be understood that the terms "upper," "middle," "outer," "inner," "around," and the positional relationships are used merely for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-8, the invention relates to a device for measuring a contact stroke of a moving contact and a static contact of a high-voltage switch cabinet breaker, which comprises a shell 1, wherein a sliding seat 7 is fixedly connected to the inner wall of the shell 1, a guide groove 701 is formed on the upper surface of the sliding seat 7, concave sliding grooves 702 are formed on two side surfaces of the sliding seat 7, a movable contact 8 is slidably connected in the sliding seat 7, concave sliding blocks 803 are fixedly connected to two sides of the movable contact 8, the concave sliding blocks 803 are slidably connected with the concave sliding grooves 702, a reciprocating seat 801 is fixedly connected to the upper surface of the movable contact 8, a screw 6 is in threaded connection with the reciprocating seat 801, the screw 6 is rotatably connected with the shell 1, a distance sensor 802 is further installed in the reciprocating; in the structure, the movable contact 8 can reciprocate along the screw 6, which shows that the position of the movable contact 8 in the sliding seat 7 can be adjusted, and the device changes the traditional fixed contact into the movable contact, so that the device can be used for measuring the contact stroke of the movable contact and the fixed contact with different lengths, and the situation of contact looseness can not occur.
One end of the screw 6 is fixedly connected with a second gear 601, the second gear 601 is meshed with a first gear 202, one end face of the first gear 202 is fixedly connected with a connecting shaft 201, the upper end of the connecting shaft 201 is fixedly connected with a knob 2, and the knob 2 is arranged on the outer side of the shell 1; in the structure, the movable contact 8 can be indirectly driven to reciprocate by rotating the knob 2.
Further, a display screen 3 is mounted on the upper surface of the housing 1, and the display screen 3 is electrically connected with the distance sensor 802; in the above structure, the distance sensor 802 can sense the distance between the movable contact 8 and the inner wall of the housing 1, and then display the value on the display 3.
Furthermore, one end of the shell 1 is also fixedly connected with an annular frame 103, and a plurality of positioning holes 101 are formed in one surface of the annular frame 103; in the above structure, the positioning hole 101 is used for positioning and installation.
Further, a locking frame 102 is fixedly connected to one surface of the housing 1, and locking screws 4 are connected to two sides of the locking frame 102 in a threaded manner; in the above structure, the plug 5 needs to be fixed during the stroke measurement, so that the barrel locking screws 4 are tightly pressed against both sides of the plug 5 to keep it in a stationary state.
Furthermore, a plurality of second springs 804 are further installed in the movable contact 8, one end of each second spring 804 is fixedly connected with a friction ball 805, and the friction ball 805 is connected with the movable contact 8 in a sliding manner; in the above structure, the friction ball 805 can press the plug 5 to increase the resistance.
Furthermore, a limit groove 807 is further formed in the movable contact 8, the limit groove 807 is in sliding fit with a limit block 806, and the limit block 806 is fixedly connected with the friction ball 805; in the above structure, the stopper 806 allows the friction ball 805 to move up and down only within the range of the stopper groove 807.
Further, a first spring 501 is arranged on the peripheral side surface of the movable rod 502; in the above configuration, the resilient characteristic of the first spring 501 presses the elastic contact 503, so that the elastic contact 503 can move toward the movable contact 8.
Further, an indicator lamp 504 is installed at one end of the plug 5, and the indicator lamp 504 is electrically connected with the elastic contact 503; in the above structure, when the elastic contact 503 is short-circuited or broken, the indicator lamp 504 is turned off to remind the operator
Referring to fig. 1-8, the present invention is a device for measuring the contact stroke of the moving and stationary contacts of a circuit breaker of a high-voltage switch cabinet, and the using method thereof is as follows:
when it is desired to measure the contact travel of the plug 5 and the movable contact 8 the plug 5 is first inserted into the slide 7, then the locking screw 4 is tightened to fix the plug 5, and then the knob 2 is rotated, the knob 2 drives the first gear 202 to rotate, the first gear 202 drives the second gear 601 to rotate, then, the second gear 601 drives the movable contact 8 to move towards the plug 5 through the screw 6, when the movable contact 8 contacts with the elastic contact 503, the resistance is obviously increased, the distance sensor 802 will always monitor the distance of the movable contact 8 from the inner wall of the housing 1 during this process, and displays it on the display screen 3, thus, recording the real-time value of the display screen 3 when the resistance begins to increase, and then recording the final value on the display screen 3 after the elastic contact 503 is completely inserted into the movable contact 8, and finally subtracting the real-time value from the final value to obtain the contact travel value.
It should be noted that the significance of measuring the contact stroke is to know the normal working range of the movable contact 8 and the elastic contact 503, and the dimensions of the contact parts have reference data when the contact parts are machined, or the contact with the most appropriate specification can be selected when the contact parts are replaced, and the device can be used as a tool device specially used for testing the contact stroke.
It should be noted that, during the process of inserting the elastic contact 503 into the movable contact 8, the elastic contact 503 may slide along with the movable rod 502, the first spring 501 is pressed, and after the elastic contact 503 is completely inserted into the movable contact 8, the first spring 501 has a tendency of rebounding, and then the rebounding force will abut against the elastic contact 503, so that the elastic contact is tightly inserted into the movable contact 8.
It should be noted that, because the movable contact 8 can reciprocate, when the plug 5 with different lengths is replaced, the movable contact 8 can still be plugged with the plug, and the adaptability is stronger.
It should be further noted that, in the actual use process, because the plug 5 is fixed, the movable contact 8 can be adjusted to be close to the plug 5, so that the movable contact is completely plugged with the plug 5, the situation that the plugging is not in place cannot occur, and the possibility of the circuit failure is reduced.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a high tension switchgear circuit breaker sound contact travel measurement device, includes casing (1), its characterized in that:
the inner wall of the shell (1) is fixedly connected with a sliding seat (7), the upper surface of the sliding seat (7) is provided with a guide groove (701), two side surfaces of the sliding seat (7) are provided with concave sliding grooves (702), the sliding seat (7) is internally connected with a movable contact (8), two sides of the movable contact (8) are fixedly connected with concave sliding blocks (803), the concave sliding blocks (803) are connected with the concave sliding grooves (702) in a sliding manner, the upper surface of the movable contact (8) is fixedly connected with a reciprocating seat (801), the reciprocating seat (801) is in threaded connection with a screw rod (6), the screw rod (6) is rotationally connected with the shell (1), a distance sensor (802) is further mounted in the reciprocating seat (801), the sliding seat (7) is further in sliding connection with a plug (5), the plug (5) is internally connected with a movable rod (502) in a sliding manner, one end, the elastic contact (503) is in sliding fit with the movable contact (8);
screw rod (6) one end fixedly connected with second gear (601), second gear (601) meshing has first gear (202), a terminal surface fixedly connected with connecting axle (201) of first gear (202), fixedly connected with knob (2) in connecting axle (201) upper end, knob (2) set up in casing (1) outside.
2. The device for measuring the contact stroke of the moving and fixed contacts of the circuit breaker of the high-voltage switch cabinet as claimed in claim 1, wherein a display screen (3) is mounted on the upper surface of the housing (1), and the display screen (3) is electrically connected with the distance sensor (802).
3. The device for measuring the contact stroke of the moving contact and the fixed contact of the high-voltage switch cabinet breaker according to claim 1, wherein one end of the shell (1) is fixedly connected with an annular frame (103), and a plurality of positioning holes (101) are formed in one surface of the annular frame (103).
4. The device for measuring the contact stroke of the moving and fixed contacts of the circuit breaker of the high-voltage switch cabinet according to claim 1, wherein a locking frame (102) is fixedly connected to one surface of the shell (1), and locking screws (4) are in threaded connection with two sides of the locking frame (102).
5. The device for measuring the contact stroke of the moving contact and the fixed contact of the high-voltage switch cabinet circuit breaker according to claim 1, wherein a plurality of second springs (804) are further installed in the movable contact (8), one end of each second spring (804) is fixedly connected with a friction ball (805), and the friction ball (805) is in sliding connection with the movable contact (8).
6. The device for measuring the contact stroke of the moving and static contacts of the circuit breaker of the high-voltage switch cabinet according to claim 5, wherein a limit groove (807) is further formed in the movable contact (8), the limit groove (807) is in sliding fit with a limit block (806), and the limit block (806) is fixedly connected with the friction ball (805).
7. The device for measuring the contact stroke of the moving and fixed contacts of the high-voltage switch cabinet breaker according to claim 1, characterized in that the peripheral side surface of the movable rod (502) is provided with a first spring (501).
8. The device for measuring the contact stroke of the moving and fixed contacts of the circuit breaker of the high-voltage switch cabinet as claimed in claim 1, wherein an indicator lamp (504) is installed at one end of the plug (5), and the indicator lamp (504) is electrically connected with the elastic contact (503).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110415598.0A CN112816865A (en) | 2021-04-19 | 2021-04-19 | High tension switchgear circuit breaker sound contact travel measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110415598.0A CN112816865A (en) | 2021-04-19 | 2021-04-19 | High tension switchgear circuit breaker sound contact travel measuring device |
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| Publication Number | Publication Date |
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| CN112816865A true CN112816865A (en) | 2021-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110415598.0A Pending CN112816865A (en) | 2021-04-19 | 2021-04-19 | High tension switchgear circuit breaker sound contact travel measuring device |
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| CN (1) | CN112816865A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113267654A (en) * | 2021-07-21 | 2021-08-17 | 广东电网有限责任公司佛山供电局 | Electrical test fixture for high-voltage circuit breaker |
| CN114544408A (en) * | 2022-02-08 | 2022-05-27 | 平高集团有限公司 | Contact wear resistance test fixture |
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| CN114544408A (en) * | 2022-02-08 | 2022-05-27 | 平高集团有限公司 | Contact wear resistance test fixture |
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Application publication date: 20210518 |