CN215183707U - Three-station operating mechanism with high safety - Google Patents
Three-station operating mechanism with high safety Download PDFInfo
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- CN215183707U CN215183707U CN202023270011.1U CN202023270011U CN215183707U CN 215183707 U CN215183707 U CN 215183707U CN 202023270011 U CN202023270011 U CN 202023270011U CN 215183707 U CN215183707 U CN 215183707U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 94
- 230000009467 reduction Effects 0.000 claims abstract description 20
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 5
- 210000004907 gland Anatomy 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The utility model provides a three station operating device of high security, includes mechanism panel, operating means, reduction gear group and mechanism main shaft, operating means and mechanism main shaft link to each other, be equipped with reduction gear group between operating means and the mechanism main shaft, operating means includes electric operating means and manual operation device, the mechanism main shaft on be equipped with circuit breaker interlock. The three-station operating mechanism is provided with two operating modes of electric operation and manual operation, the independence of the two working modes of electric operation and manual operation is ensured, and meanwhile, the three-station operating mechanism adopts the screw rod propelling mechanism, so that the phenomenon that the internal machinery of the mechanism is damaged due to vibration generated when the three-station operating mechanism works is avoided.
Description
Technical Field
The utility model belongs to the technical field of switchgear, concretely relates to three station operating device of high security
Background
The existing gas insulated metal enclosed switchgear generally adopts a three-station operation technology, wherein the three stations refer to three working positions: (1) the closing position of the main fracture of the isolating switch; (2) isolated sites where the main fractures are separated; (3) the ground position of the ground side. The existing three-station operating mechanism has the defects of large volume, complex transmission mode, redundant part assembly procedures and high part processing difficulty, and the three-station operating mechanism with small volume, simple transmission mode and strong control reliability is required for the existing three-station vacuum arc-extinguishing chamber.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving prior art's is not enough, provides a three station operating device of high security, including mechanism panel, operating means, reduction gear group and mechanism main shaft, the mechanism panel on be equipped with the manual pole intubate, operating means and mechanism main shaft link to each other, be equipped with reduction gear group between operating means and the mechanism main shaft, operating means includes electric operating means and manually operation device, the mechanism main shaft on be equipped with circuit breaker interlock, circuit breaker interlock include circuit breaker even locking lever, pawl and ratchet, circuit breaker even locking lever and the one end of pawl link to each other, the middle part cover of pawl is established on the spreader on the baffle, the bottom of pawl is equipped with the lug, the recess on lug and the ratchet cooperatees, the ratchet cover establish on the mechanism main shaft.
Furthermore, the electric operating device comprises a motor, a rotating cam and travel switches, the motor is connected with the mechanism main shaft through a clutch, the rotating cam is connected with a gear on the mechanism main shaft through a reduction gear set, a plurality of travel switches are arranged around the rotating cam, and the travel switches control the working state of the clutch.
Furthermore, the manual operation device comprises a manual rod connecting seat fixed on the partition plate, a rack is arranged at one end of the manual rod connecting seat, the rack is meshed with the reduction gear set, the manual rod connecting seat is connected with a gear on the mechanism main shaft through the rack and the reduction gear set, and the position of the manual rod connecting seat corresponds to the position of the manual rod inserting tube.
Furthermore, an electromagnetic locking device is arranged on the manual rod insertion tube and comprises an upper electromagnetic box and a lower electromagnetic box, the electromagnetic boxes are connected with the travel switch, an iron core capable of moving up and down is arranged in the middle of each electromagnetic box, and an upper through hole and a lower through hole for the iron core to penetrate through are formed in the manual rod insertion tube.
Furthermore, a station display window is further arranged on the mechanism panel, a station display is arranged at the position of the station display window, and a grounding switch closing mark, a grounding/isolating switch opening mark and an isolating switch closing mark are arranged on the station display.
Furthermore, the station display is connected with a plurality of auxiliary switches, the auxiliary switches are annularly arranged around the auxiliary switch cam, and the auxiliary switch cam is connected with the rotating cam.
Furthermore, a torsion spring is arranged between the pawl and the partition plate.
Furthermore, the mechanism main shaft is connected with the screw rod propelling mechanism, the screw rod propelling mechanism comprises a screw rod and a ball nut sleeved on the screw rod, one end of the screw rod is provided with a locking device, the locking device comprises a locking nut, a gasket and a bearing gland, the middle part of the screw rod is provided with a fixed grounding connector, and the other end of the screw rod is provided with an isolating switch connector.
Furthermore, a chain wheel is arranged between the mechanism main shaft and the screw rod propelling mechanism.
Has the advantages that: the utility model discloses a three station operating device of high security compares in current three station operating device, the utility model has the advantages of it is following: (1) the three-station operating mechanism is simultaneously provided with an electric operating mode and a manual operating mode, and the independence of the electric operating mode and the manual operating mode is ensured; (2) the three-station operating mechanism adopts the screw rod pushing mechanism, so that the phenomenon that the internal machinery of the mechanism is damaged due to vibration generated when the three-station operating mechanism works is avoided.
Drawings
FIG. 1 is a schematic structural view of a high safety three-position operating mechanism;
FIG. 2 is a schematic structural view of the three-position operating mechanism with the mechanism panel removed;
FIG. 3 is a side view of a high safety three-position operating mechanism;
FIG. 4 is a schematic view of the pawl construction;
FIG. 5 is a schematic view of the ratchet structure;
fig. 6 shows a first connection mode (grounding switch closing) of the screw rod propulsion mechanism;
FIG. 7 is a second connection (ground/isolation switch open) of the screw propulsion mechanism;
fig. 8 shows a third connection mode (closing of the disconnecting switch) of the screw rod propelling mechanism;
in the figure: 1. the mechanism comprises a mechanism panel 11, a manual lever insertion tube 12, an electromagnetic box 13, a station display window 14, an auxiliary switch 15, an auxiliary switch cam 2, an operating device 21, an electric operating device 211, a motor 212, a rotating cam 213, a travel switch 214, a clutch 22, a manual operating device 221, a manual lever connecting seat 222, a manual operating lever 3, a reduction gear set 4, a mechanism main shaft 41, a gear 5, a breaker interlocking device 51, a breaker interlocking rod 52, a pawl 53, a ratchet wheel 54, a torsion spring 6, a partition plate 61, a cross column 7, a screw rod pushing mechanism 71, a screw rod 72, a ball nut 73, a locking device 731, a locking nut 732, a gasket 733, a bearing gland 74, a grounding connector 75, a disconnecting switch connector 8 and a chain wheel.
Detailed description of the preferred embodiments
In order to deepen the understanding of the present invention, the present invention is described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
As shown in fig. 1 to 8, a high-safety three-position operating mechanism comprises a mechanism panel 1, an operating device 2, a reduction gear set 3 and a mechanism spindle 4, wherein the operating device 2 is connected with the mechanism spindle 4, the reduction gear set 3 is arranged between the operating device 2 and the mechanism spindle 4, the operating device 2 comprises an electric operating device 21 and a manual operating device 22, the electric operating device 21 comprises a motor 211, a rotating cam 212 and travel switches 213, the motor 211 is connected with the mechanism spindle 4 through a clutch 214, the rotating cam 212 is connected with a gear 41 on the mechanism spindle 4 through the reduction gear set 3, a plurality of travel switches 213 are arranged around the rotating cam 212, the travel switches 213 control the working state of the clutch 214, the manual operating device 22 comprises a manual rod connecting seat 221 fixed on a partition plate 6, one end of the manual lever connecting seat 221 is provided with a rack, the rack is meshed with the reduction gear set 3, the manual lever connecting seat 221 is connected with the gear 41 on the mechanism spindle 4 through the rack and the reduction gear set 3, and the position of the manual lever connecting seat 221 corresponds to the position of the manual lever inserting tube 11.
The mechanism panel 1 is provided with a manual rod insertion tube 11, the manual rod insertion tube 11 is provided with an electromagnetic locking device, the electromagnetic locking device comprises an upper electromagnetic box 12 and a lower electromagnetic box 12, the electromagnetic boxes 12 are connected with a travel switch 213, an iron core capable of moving up and down is arranged in the middle of each electromagnetic box 12, the manual rod insertion tube 11 is provided with an upper through hole and a lower through hole for the iron core to pass through, the mechanism panel is further provided with a station display window 13, a station display (not shown in the figure) is arranged at the station display window 13, the station display is provided with a grounding switch closing mark, a grounding/isolating switch opening mark and an isolating switch mark, the station display is connected with a plurality of auxiliary switches 14, the auxiliary switches 14 are annularly arranged around the auxiliary switch cam 15, and the auxiliary switch closing cam 15 is connected with the rotating cam 212.
The mechanism main shaft 4 on be equipped with circuit breaker interlock 5, circuit breaker interlock 5 include circuit breaker interlock pole 51, pawl 52 and ratchet 53, circuit breaker interlock pole 51 link to each other with the one end of pawl 52, the middle part cover of pawl 52 is established on the spreader 61 on baffle 6, be equipped with torsion spring 54 between pawl 52 and the baffle 6, the bottom of pawl 52 is equipped with the lug, the lug cooperatees with the recess on the ratchet 53, ratchet 53 cover establish on mechanism main shaft 4. Mechanism main shaft 4 link to each other with lead screw advancing mechanism 7, lead screw advancing mechanism 7 include lead screw 71 and cover and establish ball nut 72 on lead screw 71, the one end of lead screw 71 is equipped with locking device 73, locking device 73 include lock nut 731, packing ring 732 and bearing gland 733, the middle part of lead screw 71 is equipped with fixed ground connection connector 74, the other end of lead screw is equipped with isolator connector 75, is equipped with sprocket 8 between mechanism main shaft 4 and the lead screw advancing mechanism 7.
The working condition is as follows: as shown in fig. 1 to 8, when the circuit breaker is opened, the circuit breaker interlock rod 51 is jacked up, one end of the pawl 52 connected with the circuit breaker interlock rod 51 is lifted up by the circuit breaker interlock rod 51, the projection at the bottom of the pawl 52 is separated from the groove in the ratchet wheel 53, the circuit breaker interlocking device 5 of the three-position operating mechanism fails, and at this time, the three-position operation of the disconnecting switch can be performed.
Electric operating conditions: taking the closing of the grounding switch as an example: when the circuit breaker interlocking device 5 fails, the motor 211 is turned on, the motor 211 drives the main shaft 4 to rotate, at the moment, the screw rod propulsion mechanism 7 starts to work, the rotating cam 212 drives the auxiliary switch cam 15 to rotate simultaneously through the meshing action of the gear 41 and the reduction gear set 3, when the screw rod propulsion mechanism 7 reaches the grounding switch closing position (as shown in fig. 6), a contact of the travel switch 213 is contacted with the rotating cam 212, the clutch 214 is controlled to be attracted, the power supply of the motor 211 is disconnected, the motor 211 stops rotating, a contact of the auxiliary switch 14 is contacted with the auxiliary switch cam 15, the station display (not shown in the figure) is controlled to rotate, a grounding switch closing mark rotates to the station display window 13, and an operator is reminded that the three-station operating mechanism is in a grounding closing state at the moment. It should be noted that: in the whole electric operation process, the travel switch 213 controls the electromagnetic boxes 12 to be electrified, the iron cores in the upper electromagnetic box 12 and the lower electromagnetic box 12 are attracted, the inside of the manual rod insertion tube 11 is isolated, the electromagnetic locking device takes effect at the moment, and an operator cannot insert the manual operation rod 222 into the manual rod connection seat 221 to perform manual operation.
Manual operating conditions: taking the closing of the grounding switch as an example: an operator inserts the manual operating rod 222 into the manual rod connecting seat 221, rotates the manual operating rod 222, the rack at one end of the manual rod connecting seat 221 rotates, and drives the rotating cam 212 and the main shaft 4 to rotate through the reduction gear set 3 and the gear 41, at this time, the screw rod propulsion mechanism 7 starts to work, when the screw rod propulsion mechanism 7 reaches the ground switch closing position (as shown in fig. 6), the contact of the auxiliary switch 14 contacts the auxiliary switch cam 15, the station display (not shown in the figure) is controlled to rotate, the ground switch closing mark rotates to the station display window 13, and the operator is reminded that the three-station operating mechanism is in the ground switch closing state at this time. It should be noted that: when the manual operation lever 222 is inserted into the manual lever connection holder 221 to be manually operated, the operator cannot turn on the motor 211 to perform the electric operation.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a three station operating device of high security, its characterized in that, includes mechanism's panel, operating means, reduction gear group and mechanism's main shaft, the mechanism's panel on be equipped with manual pole intubate, operating means and mechanism's main shaft link to each other, be equipped with reduction gear group between operating means and the mechanism's main shaft, operating means includes electric operating means and manual operation device, the mechanism's main shaft on be equipped with circuit breaker interlock, circuit breaker interlock include circuit breaker even locking lever, pawl and ratchet, circuit breaker even locking lever and the one end of pawl link to each other, the middle part cover of pawl is established on the spreader on the baffle, the bottom of pawl is equipped with the lug, the lug cooperatees with the recess on the ratchet, the ratchet cover establish on the mechanism's main shaft.
2. The high-safety three-station operating mechanism is characterized in that the electric operating device comprises a motor, a rotating cam and travel switches, the motor is connected with a mechanism main shaft through a clutch, the rotating cam is connected with a gear on the mechanism main shaft through a reduction gear set, a plurality of travel switches are arranged on the periphery of the rotating cam, and the travel switches control the working state of the clutch.
3. The high-safety three-station operating mechanism is characterized in that the manual operating device comprises a manual lever connecting seat fixed on the partition plate, a rack is arranged at one end of the manual lever connecting seat and is meshed with a reduction gear set, the manual lever connecting seat is connected with a gear on a mechanism main shaft through the rack and the reduction gear set, and the position of the manual lever connecting seat corresponds to the position of a manual lever inserting pipe.
4. The high-safety three-station operating mechanism is characterized in that an electromagnetic locking device is arranged on the manual rod insertion tube and comprises an upper electromagnetic box and a lower electromagnetic box, the electromagnetic boxes are connected with a travel switch, an iron core capable of moving up and down is arranged in the middle of each electromagnetic box, and an upper through hole and a lower through hole for the iron core to pass through are formed in the manual rod insertion tube.
5. The high-safety three-station operating mechanism according to claim 1, wherein a station display window is further arranged on the mechanism panel, a station display is arranged at the station display window, and a grounding switch closing mark, a grounding/isolating switch opening mark and an isolating switch closing mark are arranged on the station display.
6. A high safety three-position operating mechanism as claimed in claim 5, wherein the position display is connected to a plurality of auxiliary switches annularly disposed around the auxiliary switch cam, the auxiliary switch cam being connected to the rotary cam.
7. A high safety three position operating mechanism according to claim 1, wherein a torsion spring is provided between the pawl and the spacer.
8. The high-safety three-station operating mechanism is characterized in that a main shaft of the mechanism is connected with a screw rod propelling mechanism, the screw rod propelling mechanism comprises a screw rod and a ball nut sleeved on the screw rod, a locking device is arranged at one end of the screw rod and comprises a locking nut, a gasket and a bearing gland, a fixed grounding connector is arranged in the middle of the screw rod, and an isolating switch connector is arranged at the other end of the screw rod.
9. A high safety three-position operating mechanism according to claim 1, wherein a chain wheel is arranged between the main shaft of the mechanism and the screw rod propelling mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023270011.1U CN215183707U (en) | 2020-12-30 | 2020-12-30 | Three-station operating mechanism with high safety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023270011.1U CN215183707U (en) | 2020-12-30 | 2020-12-30 | Three-station operating mechanism with high safety |
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| Publication Number | Publication Date |
|---|---|
| CN215183707U true CN215183707U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023270011.1U Active CN215183707U (en) | 2020-12-30 | 2020-12-30 | Three-station operating mechanism with high safety |
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| Country | Link |
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| CN (1) | CN215183707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112735906A (en) * | 2020-12-30 | 2021-04-30 | 现代重工(中国)电气有限公司 | Three-station operating mechanism with high safety |
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2020
- 2020-12-30 CN CN202023270011.1U patent/CN215183707U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112735906A (en) * | 2020-12-30 | 2021-04-30 | 现代重工(中国)电气有限公司 | Three-station operating mechanism with high safety |
| CN112735906B (en) * | 2020-12-30 | 2025-06-27 | 现代重工(中国)电气有限公司 | Three-station operating mechanism with high safety |
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