CN114613638B - Three-station position signal switching device - Google Patents
Three-station position signal switching device Download PDFInfo
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- CN114613638B CN114613638B CN202210285424.1A CN202210285424A CN114613638B CN 114613638 B CN114613638 B CN 114613638B CN 202210285424 A CN202210285424 A CN 202210285424A CN 114613638 B CN114613638 B CN 114613638B
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- cam
- signal switch
- sliding block
- grounding
- sliding
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- 238000002955 isolation Methods 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
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- Slide Switches (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
The invention relates to a three-station position signal switching device, which aims at solving the technical problem that the electrical signal switching is unreliable after in-place due to the fact that the structural design of an isolation signal switch and a grounding signal switch of the existing similar products is poor. The utility model discloses a device, the device comprises a mounting plate, a base, a cam, a fixed contact piece, a slide block, a pressure spring, a slide block, a slide contact piece and a slide contact piece, wherein the square bar on one side of the mounting plate is connected with an isolation and grounding signal switch respectively, the isolation and grounding signal switch is arranged on the mounting plate respectively, the base of the isolation and grounding signal switch is provided with a symmetrical slide groove and a central round hole respectively, the cam is arranged in the central round hole of the base, the central hole of the cam is connected with the square bar, the slide groove of the base is internally provided with the slide block and the pressure spring respectively, the two sides of the slide groove of the base are respectively provided with two fixed contact pieces symmetrically, the cam is provided with two 90-degree gaps, the slide contact piece is arranged in the concave gap of the slide block, two ends of the slide contact piece extending out of the concave gap of the slide block are respectively aligned with the fixed contact pieces on two sides, and the slide block is propped out of the slide groove of the base through the pressure spring at the bottom.
Description
Technical Field
The invention relates to a mechanical transmission plate in the mechanical high-voltage switch industry, in particular to a three-station position signal switching device.
Background
The main switch can be a permanent magnet mechanism vacuum breaker or a spring mechanism vacuum breaker, and the whole cabinet is combined with a sulfur hexafluoride gas compartment by adopting air insulation, so that the indoor alternating-current high-voltage gas insulated metal closed switch device is compact and extensible, and is suitable for power distribution automation. The inflatable cabinet has the characteristics of compact structure, flexible operation, reliable interlocking and the like, can provide a satisfactory technical scheme for various application occasions (particularly places with severe environments) and different user requirements, and is suitable for occasions with high power requirements, such as small secondary substations, box-type substations, residential communities, large markets, airports, subways, railways and the like, of a power system. The three-station position signal switching device of the existing like product is disclosed in Chinese patent literature, such as application number 201811276030.X, application publication date 2019.04.05, and the invention name is a three-station mechanism of a station lock crank; arc-shaped sliding holes are symmetrically formed in two sides of a shaft hole in a station identification disc of the mechanism, and inserting holes of ratchet cranks are respectively formed in two ends of each arc-shaped sliding hole. However, in the existing three-station switch of the air-filling cabinet, the electrical signal switching is unreliable after the three stations are in place in the three-position switching process of isolation, division and grounding; the method comprises the following steps: the three-station switch of the air charging cabinet generally adopts an auxiliary switch or a travel switch, the existing travel switch needs a plurality of groups, the space is large, the debugging is complex, and the parallel switch is easy to damage; the existing auxiliary switch is only provided with two stations, and a neutral position is needed for three stations, however, the position is easy to change in the neutral gear action process, so that the signal switching is unreliable.
Disclosure of Invention
The invention aims to provide a three-station position signal switching device for solving the technical problems of unreliable electric signal switching, large space, complex debugging, easy damage and easy position change caused by poor structural design of an isolating signal switch and a grounding signal switch of the existing similar products. The aim is achieved by the following technical scheme.
A three-station position signal switching device is characterized in that arc sliding holes are symmetrically formed in two sides of an axle hole in an indication disc of the device, inserting holes of ratchet cranks are formed in two ends of each arc sliding hole respectively, the axle hole of the indication disc is connected with a mounting plate through a rotating shaft, a driving gear is arranged on the rotating shaft on one side of the indication disc at the mounting plate, driven gears are symmetrically arranged on two sides of the driving gear, central holes of the driven gears are respectively arranged on the mounting plate through square rods, the driven gears are respectively engaged with the driving gears at the same time, the square rods extending out of the other side of the mounting plate are respectively connected with isolating and grounding signal switches, and the isolating and grounding signal switches are respectively arranged on the mounting plate. The base of the isolation and grounding signal switch is provided with a symmetrical sliding groove and a central round hole respectively, a cam is arranged in the central round hole of the base, the central hole of the cam is connected with a square rod, a sliding block and a pressure spring are respectively arranged in the sliding groove of the base, two sides of the sliding groove of the base are respectively provided with two symmetrically arranged fixed contact pieces, the cam is provided with two 90-degree notches, the sliding block is provided with an indent notch, sliding contact pieces are arranged in the indent notch of the sliding block, two ends of the sliding contact pieces extending out of two sides of the indent notch of the sliding block are respectively aligned with the fixed contact pieces on two sides to trigger, the sliding block abuts against the sliding groove of the base through the pressure spring at the bottom, and meanwhile, the extending end of the sliding groove of the sliding block abuts against the peripheral surface of the cam, or one of the 90-degree notches. The device comprises various gears, gear shafts and signal switches, the three-station mechanism of the device is provided with corresponding symmetrical gear pairs in a synchronous matching mode through the driving gear at the rotating shaft of the indicating disc, the internal cam of the isolated and grounded signal switch is directly driven by the gear pairs to realize the on-off process of the three-station corresponding position and the electric signal requirement, and then the number of the electric signals can be increased according to the actual requirement.
The two 90-degree notches of the cam are symmetrically arranged on two sides of the protrusion on one side, and the two 90-degree notches are arranged at 90 degrees. The specific angles and positions of the two 90-degree notches in the cam are set, so that the operation stroke of the device is met, namely, the cam rotates for one circle, and the ratchet handle inserted into the indicating disc correspondingly rotates for one circle.
The top of the sliding block above the concave notch of the sliding block is provided with a convex middle notch head, and the middle notch head of the sliding block is abutted against the peripheral surface of the cam or one of the 90-degree notches through a pressure spring. The sliding block is of a specific structure, the sliding block is convenient to install in the base, and the occupied space of the sliding block in the base is reduced.
The middle of the sliding contact piece protrudes towards the inner top of the concave notch of the sliding block, two ends of the sliding contact piece are respectively provided with a first copper contact piece protruding towards the fixed contact piece, and the copper contact pieces of the sliding contact piece are respectively aligned with and triggered by the second copper contact pieces at the end parts of the fixed contact pieces at two sides. The structure is convenient for the installation of the sliding contact and the fixed contact in the base and reduces the occupation of the space of the sliding contact and the fixed contact in the base.
The edge side of the indicating plate is provided with a convex stop head, and a dividing mark, a dividing mark and a dividing mark which take a shaft hole as a center are arranged on the surface of the indicating plate between the arc sliding holes of the indicating plate.
The isolation and grounding signal switches on one side of the mounting plate are isolation signal switches, and the isolation and grounding signal switches on the other side of the mounting plate are grounding signal switches; when one 90-degree notch of the cam of the isolating and grounding signal switch abuts against the corresponding sliding block, the sliding contact piece on the side abuts against the fixed contact piece to trigger, and the sliding contact piece on the other side abuts against the peripheral surface of the cam, so that the sliding contact piece on the other side abuts against the fixed contact piece to trigger and separate; the isolating signal switch is positioned at the isolating position to output signals, one 90-degree notch of the cam of the isolating signal switch is propped against the sliding block on one side, and the sliding block on the other symmetrical side is propped against the peripheral surface of the cam; at this time, the other side grounding signal switch is also positioned at the separation and separation position to output signals, the peripheral surface of one side of the cam of the grounding signal switch is propped against the sliding block at one side, and the sliding block at the other symmetrical side is propped against one of the 90-degree notches of the cam; the cam of the isolating signal switch rotates clockwise, a 90-degree notch at the other side of the cam is propped against the sliding block at one side, the sliding block at the other side is propped against the peripheral surface of the cam, and the isolating signal switch is positioned for dividing the output signal; at this time, the other side grounding signal switch is also positioned at the split output signal, the cam of the grounding signal switch rotates anticlockwise, the 90-degree notch on the other side of the cam of the grounding signal switch is propped against the sliding block on one side, and the sliding block on the other symmetrical side is propped against the peripheral surface of the cam;
the cam of the isolating signal switch continuously rotates clockwise, the peripheral surface of the cam is propped against the sliding block at one side, the 90-degree notch at the other side of the cam is propped against the sliding block at the other side, and the isolating signal switch is positioned at the grounding joint position to output a signal; at this time, the other side grounding signal switch is also positioned at the grounding position to output a signal, the cam of the grounding signal switch continuously rotates anticlockwise, the notch on the other side of the cam of the grounding signal switch is abutted against the sliding block on one side, and the sliding block on the other symmetrical side is abutted against the peripheral surface of the cam.
When the three stations rotate to the isolation joint position or the grounding joint position, the device is controlled according to the concave-convex notch of the internal cam, and the position signals are switched on and off. The device is directly provided with a plurality of groups, has small space, few parts and simple adjustment, and is driven by gears to be in place and reliable. The isolating and combining output signal, the dividing output signal and the grounding and combining output signal can be operated reversely, and one cam in the isolating and grounding signal switch can rotate clockwise and the other cam can rotate anticlockwise.
The invention has reasonable structural design, convenient use and assembly, simple and convenient operation and debugging, good safety and reliability, small space, fewer parts and convenient installation of a plurality of groups; the three-station position signal switching device is suitable for being used as a three-station position signal switching device of a same type of high-voltage switch such as an inflatable cabinet and the like, and the structure of the same type of product is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a rear structural schematic view of fig. 1.
FIG. 3 is a schematic diagram of the internal structure of the isolating signal switch in the isolating position output signal state according to the present invention.
FIG. 4 is a schematic diagram showing the internal structure of the grounding signal switch in the state of isolating the output signal of the clutch position.
Fig. 5 is a schematic diagram of the internal structure of the isolating signal switch in the state of dividing the output signal according to the present invention.
Fig. 6 is a schematic diagram showing an internal structure of the ground signal switch in a split output signal state according to the present invention.
FIG. 7 is a schematic diagram showing the internal structure of the isolating signal switch in the state of outputting signal at the ground level.
Fig. 8 is a schematic diagram showing an internal structure of the ground signal switch in a ground-coupled output signal state according to the present invention.
Figure number and name: 1. the device comprises an indicating disc, 2, a rotating shaft, 3, a driven gear, 4, a driving gear, 5, a square rod, 6, a mounting plate, 7, an isolation grounding signal switch, 701, a base, 702, a cam, 703, a fixed contact, 704, a sliding block, 705, a sliding contact, 706 and a pressure spring.
Detailed Description
The construction and use of the present invention will now be further described with reference to the accompanying drawings. As shown in fig. 1-8, arc sliding holes are symmetrically arranged on two sides of an axle hole on an indication disc 1 of the device, inserting holes of ratchet cranks are respectively arranged at two ends of the arc sliding holes, the axle hole of the indication disc is connected with a mounting plate 6 through a rotating shaft 2, a driving gear 4 is arranged on the rotating shaft on one side of the indication disc at the position of the mounting plate below the inserting holes of the arc sliding holes, driven gears 3 are symmetrically arranged on two sides of the driving gear, central holes of the driven gears are respectively arranged on the mounting plate through square rods 5, the driven gears are respectively engaged with the driving gears at the same time, the square rods extending out of the other side of the mounting plate are respectively connected with an isolation signal switch 7, and the isolation signal switch and the grounding signal switch are respectively arranged on the mounting plate. The isolation of one side of mounting panel, the ground connection signal switch is the isolation signal switch, the isolation of symmetry opposite side, the ground connection signal switch is the ground connection signal switch, the base 701 of isolation, the ground connection signal switch is equipped with symmetrical spout and center round hole respectively, be equipped with cam 702 in the center round hole of base, the center hole of cam is connected with the square pole, be equipped with slider 704 and pressure spring 706 in the spout of base respectively, the spout both sides of base are equipped with the fixed contact 703 of pairwise symmetry setting respectively, the cam is equipped with two 90 degrees breachs, the slider is equipped with the indent breach, be equipped with sliding contact 705 in the indent breach of slider, the sliding contact both ends that stretch out the indent breach both sides of slider are aligned with the fixed contact of both sides respectively and are triggered, the spout that the slider stretches out the base through the pressure spring of bottom offsets simultaneously, the spout extension end and the periphery of cam, or one of them 90 degrees breach offsets.
The two 90-degree notches of the cam are symmetrically arranged on two sides of the bulge on one side, and the two 90-degree notches are arranged at 90 degrees; the top of the sliding block above the concave notch of the sliding block is provided with a convex middle notch head, and the middle notch head of the sliding block is abutted against the peripheral surface of the cam through a pressure spring or one of the 90-degree notches. The middle of the sliding contact piece protrudes towards the top in the concave notch of the sliding block, two ends of the sliding contact piece are respectively provided with a first copper contact piece protruding towards the fixed contact piece, and the copper contact pieces of the sliding contact piece are respectively aligned with and triggered by the second copper contact pieces at the end parts of the fixed contact pieces at two sides. A convex stop head is arranged on one side of the edge of the indicating disc, and a dividing mark, a dividing mark and a dividing mark which take a shaft hole as a center are arranged on the disc surface between the arc sliding holes of the indicating disc.
The action principle and the action of the device are as follows: the three-station rotating shaft 2 rotates to drive the indicating disc 1 to rotate at a corresponding position, and the driving gear 4 is driven to rotate in the rotating process of the rotating shaft 2; simultaneously, the two driven gears 3 are driven to rotate in opposite directions, the gears drive the signal switch 7 to act through the square rod 5, one cam 702 in the isolated and grounded signal switch rotates clockwise, and the other cam 702 rotates anticlockwise; thereby driving the sliding block 704 to slide according to the concave-convex positions (two 90-degree notches and the peripheral surface) of the cam surface, and enabling the sliding contact piece 705 to contact or separate from the fixed contact piece 703 in the sliding process of the sliding block to move along the sliding groove of the base 701; when the contact is in contact, the position signal is on, and when the contact is separated, the signal is off.
In summary, the device has the following functions: 1. one end of the rotating shaft 2 is square head matched with the indicating disc 1, the other end of the rotating shaft 2 is provided with a waist-shaped part, the driving gear 4 is matched and installed, and then the driving gear is integrally installed at a corresponding position of the mounting plate 6. 2. The isolating and grounding signal switches 7 are respectively arranged at corresponding positions of the mounting plate 6. 3. The two driven gears 3 and the driving gear 4 are arranged on the mounting plate in a matched manner, so that two pairs of gear pairs are realized. 4. The isolating and grounding signal switch 7 is provided with a square rod 5, and the square rod 5 penetrates through the mounting plate 6 and penetrates into the two driven gears 3, so that the driven gears 3 and the isolating and grounding signal switch 7 realize synchronous rotation. 5. The base 701 of the isolating and grounding signal switch 7 is provided with a symmetrical chute and a central round hole, the cam 702 is provided with two 90-degree notches, and the slide block 704 is provided with a concave notch. 6. The cams 702 of the isolating and grounding signal switch 7 are installed in central round holes on the inner side of the base 701, two sliding blocks 704 are installed in sliding grooves on two sides of the base 701, four fixed contact pieces 703 are installed at corresponding positions of the base 701, sliding contact pieces 705 are symmetrically installed in grooves in the sliding blocks and installed on the base, and a pressure spring 706 is arranged between the sliding contact pieces and the base.
Claims (5)
1. A three-station position signal switching device is characterized in that arc sliding holes are symmetrically formed in two sides of an upper shaft hole of an indication disc (1) of the device, inserting holes of ratchet cranks are respectively formed in two ends of the arc sliding holes, the shaft hole of the indication disc is connected with a mounting plate (6) through a rotating shaft (2), a driving gear (4) is arranged on the rotating shaft on one side of the indication disc at the mounting plate, driven gears (3) are symmetrically arranged on two sides of the driving gear, central holes of the driven gears are respectively arranged on the mounting plate through square rods (5), the driven gears are respectively meshed with the driving gears at the same time, the square rods extending out of the other side of the mounting plate are respectively connected with an isolation signal switch (7), and the isolation signal switch and the grounding signal switch are respectively arranged on the mounting plate; the device is characterized in that a base (701) of the isolation and grounding signal switch (7) is respectively provided with a symmetrical sliding groove and a central round hole, a cam (702) is arranged in the central round hole of the base, the central hole of the cam is connected with a square rod (5), a sliding block (704) and a pressure spring (706) are respectively arranged in the sliding groove of the base, two fixed contact pieces (703) which are symmetrically arranged in pairs are respectively arranged on two sides of the sliding groove of the base, two 90-degree notches are arranged on the cam, a concave notch is arranged on the sliding block, a sliding contact piece (705) is arranged in the concave notch of the sliding block, two ends of the sliding contact piece extending out of two sides of the concave notch of the sliding block are respectively aligned with the fixed contact pieces on two sides to trigger, the sliding groove extending out of the base through the pressure spring at the bottom, and simultaneously, the extending end of the sliding groove of the sliding block is propped against the peripheral surface of the cam, or one 90-degree notch; two 90-degree notches of the cam (702) are symmetrically arranged on two sides of one side of the protrusion, and 90-degree notches are formed between the two 90-degree notches.
2. The three-position signal switching device according to claim 1, wherein a raised central notch head is arranged at the top of the slide block above the concave notch of the slide block (704), and the central notch head of the slide block is abutted against the peripheral surface of the cam (702) or one of the 90-degree notches through a pressure spring (706).
3. The three-position signal switching device according to claim 1, wherein the middle of the sliding contact (705) protrudes toward the top of the concave notch of the sliding block (704), two ends of the sliding contact are respectively provided with a first copper contact protruding toward the fixed contact (703), and the copper contacts of the sliding contact are respectively aligned with and triggered by the second copper contacts at the ends of the fixed contacts at two sides.
4. The three-station position signal switching device according to claim 1, wherein a convex stop head is arranged on one side of the edge of the indicating disc (1), and a dividing mark, a dividing mark and a dividing mark which are centered on the shaft hole are arranged on the disc surface between the arc sliding holes of the indicating disc.
5. The three-position signal switching device of claim 1, wherein:
one side of the mounting plate (6) is isolated, the grounding signal switch (7) is an isolated signal switch, and the isolated and grounding signal switch on the other symmetrical side is a grounding signal switch; when one 90-degree notch of a cam (702) of the isolating and grounding signal switch is propped against a corresponding sliding block (704), a sliding contact piece (705) at the side is propped against a fixed contact piece (703) to trigger, and the sliding block at the other side is propped against the peripheral surface of the cam, so that the sliding contact piece at the other side is propped against the fixed contact piece to trigger and separate;
the isolating signal switch is positioned at the isolating position to output signals, one 90-degree notch of the cam of the isolating signal switch is propped against the sliding block on one side, and the sliding block on the other symmetrical side is propped against the peripheral surface of the cam; at this time, the other side grounding signal switch is also positioned at the separation and separation position to output signals, the peripheral surface of one side of the cam of the grounding signal switch is propped against the sliding block at one side, and the sliding block at the other symmetrical side is propped against one of the 90-degree notches of the cam;
the cam of the isolating signal switch rotates clockwise, a 90-degree notch at the other side of the cam is propped against the sliding block at one side, the sliding block at the other side is propped against the peripheral surface of the cam, and the isolating signal switch is positioned for dividing the output signal; at this time, the other side grounding signal switch is also positioned at the split output signal, the cam of the grounding signal switch rotates anticlockwise, the 90-degree notch on the other side of the cam of the grounding signal switch is propped against the sliding block on one side, and the sliding block on the other symmetrical side is propped against the peripheral surface of the cam;
the cam of the isolating signal switch continuously rotates clockwise, the peripheral surface of the cam is propped against the sliding block at one side, the 90-degree notch at the other side of the cam is propped against the sliding block at the other side, and the isolating signal switch is positioned at the grounding joint position to output a signal; at this time, the other side grounding signal switch is also positioned at the grounding position to output a signal, the cam of the grounding signal switch continuously rotates anticlockwise, the notch on the other side of the cam of the grounding signal switch is abutted against the sliding block on one side, and the sliding block on the other symmetrical side is abutted against the peripheral surface of the cam.
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CN202210285424.1A CN114613638B (en) | 2022-03-22 | 2022-03-22 | Three-station position signal switching device |
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CN202210285424.1A CN114613638B (en) | 2022-03-22 | 2022-03-22 | Three-station position signal switching device |
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CN204946757U (en) * | 2015-07-06 | 2016-01-06 | 成都瑞联电气股份有限公司 | A kind of auxiliary switch with indicating positions state |
CN109585209A (en) * | 2018-10-30 | 2019-04-05 | 宁波姚舜智能电气设备有限公司 | Station locks crank three position mechanism |
CN212648156U (en) * | 2020-08-05 | 2021-03-02 | 江苏华唐电器有限公司 | Breaker device for wind power gas-filled switch |
CN113571371A (en) * | 2021-05-27 | 2021-10-29 | 默飓电气有限公司 | Three-station mechanism |
CN114145477A (en) * | 2021-11-30 | 2022-03-08 | 黄晟圃 | Novel strawberry cleaning and finishing machine and working method thereof |
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