CN112217001A - Contact net safety measure operation earthing device - Google Patents
Contact net safety measure operation earthing device Download PDFInfo
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- CN112217001A CN112217001A CN202010963011.5A CN202010963011A CN112217001A CN 112217001 A CN112217001 A CN 112217001A CN 202010963011 A CN202010963011 A CN 202010963011A CN 112217001 A CN112217001 A CN 112217001A
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- 210000000707 wrist Anatomy 0.000 claims abstract description 60
- 238000011084 recovery Methods 0.000 claims description 16
- 239000012212 insulator Substances 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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Abstract
The invention provides a grounding device for contact net safety measure operation, which comprises: the contact line grounding device comprises a telescopic ejector rod arranged on a strut along the vertical direction of a contact line strut, a driving device is arranged at the bottom of the telescopic ejector rod, a contact line cantilever grounding contact arm is arranged at the top of the strut, one end of the contact line cantilever grounding contact arm is hinged to the telescopic ejector rod, the other end of the contact line cantilever grounding contact arm is arranged between two wrist arms of a contact line along the vertical direction of the strut and is not in contact with the wrist arms, a positive feed line grounding contact arm is arranged at the top of the strut and is opposite to the contact line grounding contact arm, one end of the positive feed line grounding contact arm is hinged to the top of the telescopic ejector rod, and the other end of the. This contact net safety measure operation earthing device can use electric control or manual control to accomplish the hanging of earth connection and tear the operation open, effectively solves the manual work and hangs the drawback of tearing the earth connection operation open and bring, provides work efficiency, and the operation is safer.
Description
Technical Field
The invention relates to a grounding device, in particular to a grounding device for operation of safety measures of a contact net.
Background
In the traction power supply system of the electrified railway, the normal operation of the railway system is required to be ensured, the daily maintenance is indispensable, the contact network in the maintenance section is required to be powered off when the daily maintenance or the fault first-aid repair is carried out, and the ground wires are hung at two ends of the operation section, so that the construction safety of operators is ensured. Aiming AT various power supply modes of a traction network, for example, safety measure operation in a direct supply mode needs to be carried out on the ground wire in a hanging mode, and safety measure operation in an AT power supply mode needs to be carried out on the ground wire in a hanging mode. The traditional ground wire hanging link is manually completed, after the safety measure operation of a substation is completed, field workers firstly test electricity, and then use a grounding rod to hang or remove the ground wire below a contact wire, a positive feeder line and the like, but the manual operation has the defects of low safety guarantee, low efficiency, high strength and the like, and the manual operation method cannot meet the requirements of efficient and safe operation for the safe operation of a contact network with high dispersity and long distance.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the grounding device for the operation of the safety measures of the contact network, which can complete the hanging and dismounting operation of the grounding wire by using electric control or manual control, has an intelligent interface, can realize the remote monitoring of the grounding device through an automatic cloud platform, effectively overcomes the defects caused by the manual hanging and dismounting operation of the grounding wire, and provides the working efficiency and safer operation.
In order to achieve the technical scheme, the invention provides a grounding device for contact net safety measure operation, which comprises: a telescopic ejector rod arranged on the support along the vertical direction of the contact net support, a driving device arranged at the bottom of the telescopic ejector rod, a contact wire cantilever grounding contact arm arranged at the top of the support, one end of the contact wire wrist arm grounding contact arm is hinged on the telescopic ejector rod, the other end of the contact wire wrist arm grounding contact arm is vertically arranged between the two wrist arms of the contact wire along the vertical direction of the support column, and has no contact with the wrist arm, the positive feed line grounding contact arm is mounted on the top of the support and is opposite to the contact line wrist arm grounding contact arm, one end of the positive feeder line grounding contact arm is hinged on the top of the telescopic ejector rod, the other end of the positive feeder line grounding contact arm is suspended above a jacket arranged on the positive feeder line, the middle part of the positive feeder line grounding contact arm is fixed on the positive feeder line shoulder frame through the base, and the positive feeder line jacket is arranged on the contact part of the positive feeder line and the positive feeder line grounding contact arm.
In the technical scheme, during actual work, when a contact network is in maintenance safety measure grounding operation, the driving device is manually controlled to drive the telescopic ejector rod to move upwards, the contact line cantilever grounding contact arm connected with the telescopic ejector rod and the positive feeder line grounding contact arm move downwards under the lever action, at the moment, the contact line cantilever grounding contact arm is in contact with the contact line cantilever, the positive feeder line grounding contact arm is in contact with the positive feeder line jacket, and the cantilever is electrically connected with the contact line, so that the aim of grounding the contact line and the positive feeder line is fulfilled, and the grounding measure operation of the contact line and the positive feeder line is realized. When the safety measures need to be removed, the driving device is operated manually in a reverse direction to drive the telescopic ejector rod to move downwards, the contact wire cantilever grounding contact arm and the positive feeder line grounding contact arm are restored to the initial state, and the grounding measures of the contact wire and the positive feeder line are removed.
Preferably, the contact line wrist-arm grounding contact arm comprises a contact line wrist-arm grounding contact arm rocker arm, a contact line wrist-arm grounding contact arm base, a contact line wrist-arm grounding contact arm spring hinge, a contact line wrist-arm grounding contact arm automatic recovery spring, a contact line wrist-arm grounding contact arm insulating rod, a contact line wrist-arm grounding contact arm contact and a rotating shaft, wherein a support lug is arranged on the contact line wrist-arm grounding contact arm base, the bottom of the contact line wrist-arm grounding contact arm insulating rod is fixed on the support lug of the contact line wrist-arm grounding contact arm base through the rotating shaft, one end of the contact line wrist-arm grounding contact arm is hinged on a telescopic ejector rod, the other end of the contact line wrist-arm grounding contact arm rocker arm is hinged with one end of the rotating shaft through the contact line wrist-arm grounding contact arm spring hinge, and the contact line wrist, the contact wire cantilever ground contact arm contact is mounted on the top of the contact wire cantilever ground contact arm insulator spindle. During actual work, the contact line wrist arm grounding contact arm base is fixed on the support through the angle hoop, the contact line wrist arm grounding contact arm spring hinge connects the contact line wrist arm grounding contact arm insulating rod with the rotating shaft of the contact line wrist arm grounding contact arm rocker and provides pressing force for the contact line wrist arm grounding contact arm rocker, the contact line wrist arm grounding contact arm automatic recovery spring bears reverse force when the contact line wrist arm grounding contact arm contact and the wrist arm are connected, and the contact line wrist arm grounding contact can be quickly separated from the wrist arm and recovered to an initial state through spring pre-torsion force when the contact line wrist arm grounding contact and the wrist arm are disconnected.
Preferably, the contact wire wrist-arm grounding contact arm contact is hinged to the top of the contact wire wrist-arm grounding contact arm insulating rod and keeps a free movement allowance within a range of +/-7.5 degrees, so that the influences of incomplete contact and the like caused by different installation processes are avoided, and the contact area is effectively ensured. The contact line wrist arm grounding contact arm insulating rod can effectively insulate and isolate the contact of the contact line wrist arm grounding contact arm and the contact line wrist arm grounding contact arm rocker mechanism, thereby ensuring the safety of operators.
Preferably, the contact wire wrist arm grounding contact arm contact is embedded with a magnet, and when the contact wire wrist arm grounding contact arm contact is in contact with the wrist arm, the contact wire wrist arm grounding contact arm contact can be in better reliable contact with the wrist arm through the magnet.
Preferably, the positive feed line ground contact arm comprises a positive feed line ground contact arm rocker arm, a positive feed line ground contact arm base, a positive feed line ground contact arm self-restoring spring, a positive feed line ground contact arm insulator bar and a positive feed line ground contact arm contact, wherein one end of the positive feeder line grounding contact arm rocker arm is hinged on the top of the telescopic ejector rod, the positive feeder line grounding contact arm base is fixedly arranged on the positive feeder line shoulder frame, the positive feeder line grounding contact arm base is connected with the positive feeder line grounding contact arm rocker arm through an automatic recovery spring, the positive feeder line grounding contact arm insulating rod is sleeved on the positive feeder line rocker arm, the positive feeder line grounding contact arm contact is hinged on the front end of the positive feeder line grounding contact arm insulating rod, the positive feed line grounding contact arm contact has a free movement allowance within the range of +/-7.5 degrees, the positive feed line grounding contact arm contact is suspended above the positive feed line, and a jacket at a good contact part with the positive feed line grounding contact arm is arranged on the positive feed line. In the actual working process, the positive feeder line grounding contact arm automatic recovery spring bears the reverse force when the positive feeder line grounding contact arm contact and the positive feeder line are connected, the positive feeder line grounding contact arm contact can be ensured to be separated from the positive feeder line jacket and recovered to the initial state quickly through the spring pre-torsion force when the positive feeder line grounding contact arm contact is disconnected with the positive feeder line, in addition, the device misoperation caused by the influence of external force factors can be avoided when the contact network is in normal operation, and the safety and reliability are ensured. The positive feeder line grounding contact arm insulating rod can effectively insulate and isolate the positive feeder line grounding contact arm contact from the positive feeder line grounding contact arm rocker arm mechanism, so that the safety of operators is ensured; the positive feeder line grounding contact arm contact has a free movement allowance within a range of +/-7.5 degrees, so that the influences of incomplete contact and the like caused by different mounting processes are avoided, and the contact area is effectively ensured.
Preferably, the positive feed line grounding contact arm contact is embedded with a magnet, and when the positive feed line grounding contact arm contact is contacted with the positive feed line jacket, the positive feed line grounding contact arm contact can be reliably contacted with the positive feed line jacket through the magnet.
Preferably, the telescopic ejector rod comprises a first ejector rod joint, a second ejector rod joint, a limiting contact ring spring, a limiting contact ring, an angle hoop, a third ejector rod joint and an ejector rod body, the first ejector rod joint is installed at the top of the ejector rod body and hinged to the positive feed line grounding contact arm, the second ejector rod joint is installed at the upper half part of the ejector rod body and located below the first ejector rod joint, the second ejector rod joint is hinged to the contact line wrist arm grounding contact arm, the ejector rod body is fixed to the support column through the angle hoop, the limiting contact ring spring and the limiting contact ring are respectively sleeved on the ejector rod body, and the third ejector rod joint is installed at the bottom of the ejector rod body and connected with the driving device. In the actual working process, the up-and-down movement of the telescopic ejector rod drives and controls the contact wire cantilever grounding contact arm and the positive feeder line grounding contact arm to act, so that the implementation or the dismantling of the contact net safety operation grounding measure is realized, and the limit contact ring is used for limiting the up-and-down stroke range of the telescopic ejector rod and can be used as an in-place signal to be fed back to the electric control unit. The limiting contact ring spring is used for ensuring that the contact arm is completely in place or restored, and a certain buffer allowance is reserved for the up-down stroke.
Preferably, the driving device comprises a worm gear, a handle and a direct current motor, wherein the worm gear is in butt joint with a third ejector rod joint at the bottom of the telescopic ejector rod, the direct current motor is installed on the worm gear, and the handle is connected with the worm gear through a rotating shaft. The direct current motor can automatically control the rotation of the worm gear and further control the lifting of the telescopic ejector rod, and the handle can also be used for manually adjusting the rotation of the worm gear and further manually controlling the lifting of the telescopic ejector rod.
The invention has the following beneficial effects:
1) the contact line safety measure operation grounding device is simple in structure, reasonable in design, high in automation degree, convenient to operate, and during actual work, when the contact line is used for overhauling safety measure grounding operation, the contact line cantilever grounding contact arm and the positive feeder grounding contact arm connected with the telescopic ejector rod move downwards under the action of the lever through driving the telescopic ejector rod to move upwards by the manual control driving device, at the moment, the contact line cantilever grounding contact arm is in contact with the cantilever of the contact line, the positive feeder grounding contact arm is in contact with the positive feeder jacket, and the cantilever is electrically connected with the contact line, so that the purpose of grounding the contact line and the positive feeder is achieved, and the grounding measure operation of the contact line and the positive feeder is realized. When the safety measures need to be removed, the driving device is operated manually in a reverse direction to drive the telescopic ejector rod to move downwards, the contact wire cantilever grounding contact arm and the positive feeder line grounding contact arm are restored to the initial state, and the grounding measures of the contact wire cantilever and the positive feeder line are removed.
2) This contact net safety measure operation earthing device can use electric control or manual control to accomplish hanging of earth connection and tearing open the operation to possess intelligent interface, the automatic cloud platform of accessible realizes earthing device's remote monitoring, effectively solves the drawback that the manual work was hung and is torn open the earth connection operation and bring, provides work efficiency, and the operation is safer.
3) The grounding device for the contact network safety measure operation can be compatible with contact network safety measure operations of various power supply modes, and has strong practicability; the automatic cloud platform has the advantages that the electric control mechanism and the manual operation mechanism are arranged, the reliability and the working efficiency are improved, the electric control unit reserves an intelligent interface, and the automatic cloud platform is conveniently accessed.
Drawings
Fig. 1 is a schematic structural view of the grounding device in an initial state or a grounding disassembled state.
FIG. 2 is a schematic view of the grounding device of the present invention after the grounding wire is hooked.
FIG. 3 is a schematic diagram of a contact wire wrist grounding contact arm according to the present invention.
Fig. 4 is a schematic structural diagram of a positive feed line ground contact arm according to the present invention.
Fig. 5 is a schematic structural view of the telescopic carrier rod of the present invention.
Fig. 6 is an enlarged view of a part of the structure of the telescopic rod of the present invention.
Fig. 7 is a schematic structural diagram of the driving device of the present invention.
In the figure: 1. a contact wire cantilever ground contact arm; 11. a contact wire cantilever grounding contact arm rocker arm; 12. a contact wire cantilever ground contact arm base; 13. a contact wire cantilever grounding contact arm spring hinge; 14. the contact wire cantilever grounding contact arm automatically restores the spring; 15. a contact wire cantilever grounding contact arm insulating rod; 16. a contact wire cantilever ground contact arm contact; 17. a rotating shaft; 2. a positive feed line ground contact arm; 21. a positive feed line ground contact arm rocker arm; 22. a positive feed line ground contact arm base; 23. a positive feed line grounding contact arm automatic recovery spring; 24. a positive feed line grounding contact arm insulating rod; 25. a positive feed line ground contact arm contact; 3. a telescopic ejector rod; 31. a first ejector rod joint; 32. a second ejector rod joint; 33. a limit contact ring spring; 34. a limit contact ring; 35. a corner hoop; 36. a third ejector rod joint; 37. a mandril body; 4. a drive device; 41. a worm gear drive mechanism; 42. a handle; 43. a direct current motor; 5. a positive feeder jacket; 6. a pillar; 7. a wrist arm; 8. a positive feeder shoulder frame; 9. an insulator string; 10. a positive feed line.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 obtained by a person skilled in the art without making any inventive step are within the scope of the present invention.
Example (b): a grounding device for contact net safety measure operation.
Referring to fig. 1 to 7, the contact line and the positive feeder 10 are erected on the top of the support 6 through the support devices such as the cantilever 7 and the positive feeder shoulder frame 8, respectively, and the grounding device for the contact line safety measure operation comprises: the grounding device comprises a telescopic ejector rod 3 arranged on a support 6 along the vertical direction of the support 6, a positive feeder jacket 5 convenient for good contact of a grounding device of the positive feeder is arranged on a positive feeder 10, a driving device 4 is arranged at the bottom of the telescopic ejector rod 3, a contact line cantilever grounding contact arm 1 is arranged at the top of the support 6, one end of the contact line cantilever grounding contact arm 1 is hinged to the telescopic ejector rod 3, in an initial state, the contact line cantilever grounding contact arm 1 is vertically and upwards erected between two contact lines 7 along the vertical direction of the support 6 and is not in contact with the cantilever 7, a positive feeder grounding contact arm 2 is arranged at the top of the support 6 and is opposite to the contact line cantilever grounding contact arm 1, one end of the positive feeder grounding contact arm 2 is hinged to the top of the telescopic ejector rod 3, and in an initial state, the other end of the positive feeder. In actual work, when the contact line maintenance safety measure grounding work is carried out, the manual control driving device 4 drives the telescopic ejector rod 3 to move upwards, the contact line cantilever grounding contact arm 1 connected with the telescopic ejector rod 3 and the positive feeder line grounding contact arm 2 move downwards under the lever action, at the moment, the contact line cantilever grounding contact arm 1 is in contact with the cantilever 7, the positive feeder line grounding contact arm 2 is in contact with the positive feeder line jacket 5, and the cantilever is electrically connected with the contact line, so that the purpose of grounding the contact line and the positive feeder line is achieved, and the grounding measure work of the contact line and the positive feeder line is realized. When the safety measures need to be removed, the driving device 4 is operated manually in a reverse direction to drive the telescopic ejector rod 3 to move downwards, the contact wire cantilever grounding contact arm 1 and the positive feeder line grounding contact arm 2 are restored to the initial state, and the grounding measures of the contact wire and the positive feeder line are removed.
Referring to fig. 2 and 3, the contact line cantilever grounding contact arm 1 includes a contact line cantilever grounding contact arm rocker arm 11, a contact line cantilever grounding contact arm base 12, a contact line cantilever grounding contact arm spring hinge 13, a contact line cantilever grounding contact arm automatic recovery spring 14, a contact line cantilever grounding contact arm insulating rod 15, a contact line cantilever grounding contact arm contact 16 and a rotating shaft 17, wherein a support lug is arranged on the contact line cantilever grounding contact arm base 12, the bottom of the contact line cantilever grounding contact arm insulating rod 15 is fixed on the support lug of the contact line cantilever grounding contact arm base 12 through the rotating shaft 17, one end of the contact line cantilever grounding contact arm 11 is hinged on the telescopic ejector rod 3, the other end of the contact line cantilever grounding contact arm 11 is hinged with one end of the rotating shaft 17 through the contact line cantilever grounding contact arm spring hinge 13, the contact line cantilever grounding contact arm automatic recovery spring 14 is mounted on the rotating shaft 17 and is hinged with the contact line cantilever At the opposite end of the spring hinge 13, a contact wire wrist arm ground contact arm contact 16 is mounted on top of a contact wire wrist arm ground contact arm insulator 15. In actual operation, the contact line wrist arm grounding contact arm base 12 is fixed on the support 6 through the angle hoop, the contact line wrist arm grounding contact arm spring hinge 13 connects the contact line wrist arm grounding contact arm insulating rod 15 with the rotating shaft 17 of the contact line wrist arm grounding contact arm rocker 11 and provides pressing force for the contact line wrist arm grounding contact arm rocker 11, the contact line wrist arm grounding contact arm automatic recovery spring 14 bears reverse force when the contact line wrist arm grounding contact arm contact 16 is connected with the wrist arm 7, and the contact line wrist arm grounding contact 16 can be ensured to be quickly separated from the wrist arm 7 and recovered to an initial state through spring pre-torsion when the contact line wrist arm grounding contact 16 is disconnected with the wrist arm 7. The contact wire cantilever grounding contact arm contact 16 is hinged to the top of the contact wire insulating rod 15 and keeps a free movement allowance within a range of +/-7.5 degrees, so that the influences of incomplete contact and the like caused by different installation processes are avoided, and the contact area is effectively ensured. The contact line wrist arm grounding contact arm insulating rod can effectively insulate and isolate the contact of the contact line wrist arm grounding contact arm and the contact line wrist arm grounding contact arm rocker mechanism, thereby ensuring the safety of operators. And the contact wire wrist arm grounding contact arm contact 16 is embedded with a magnet, and when the contact wire wrist arm grounding contact arm contact 16 is contacted with the wrist arm 7, the contact wire wrist arm grounding contact arm can be better reliably contacted with the wrist arm 7 through the magnet.
Referring to fig. 2 and 4, the positive feeder line ground contact arm 2 includes a positive feeder line ground contact arm rocker arm 21, a positive feeder line ground contact arm base 22, a positive feeder line ground contact arm automatic recovery spring 23, a positive feeder line ground contact arm insulation rod 24 and a positive feeder line ground contact arm contact 25, wherein one end of the positive feeder line ground contact arm rocker arm 21 is hinged on the top of the telescopic ejector rod 3, the positive feeder line ground contact arm base 22 is fixedly mounted on the positive feeder line shoulder frame 8, the positive feeder line ground contact arm base 22 and the positive feeder line ground contact arm rocker arm 21 are connected through the positive feeder line ground contact arm automatic recovery spring 23, the positive feeder line ground contact arm insulation rod 24 is sleeved on the positive feeder line ground contact arm 21, the positive feeder line ground contact arm contact 25 is hinged on the front end of the positive feeder line ground contact arm insulation rod 24, the positive feeder line ground contact 25 has a free movement, the contact 25 of the grounding contact arm of the positive feeder line is suspended above the positive feeder line, and the positive feeder line is provided with a positive feeder line jacket 5 which is a good contact part with the grounding contact arm of the positive feeder line. In the actual working process, the positive feeder line grounding contact arm automatic recovery spring 23 bears the reverse force when the positive feeder line grounding contact arm contact 25 is connected with the positive feeder line, and the positive feeder line grounding contact arm contact 25 can be ensured to be quickly separated from the positive feeder line jacket 5 to recover to the initial state through the spring pre-torsion force when the positive feeder line grounding contact arm contact 25 is disconnected with the positive feeder line jacket 5. The positive feed line grounding contact arm insulating rod 24 can effectively insulate and isolate the positive feed line grounding contact arm contact 25 and the positive feed line grounding contact arm rocker arm 21 mechanism, so that the safety of operators is ensured; the positive feed line grounding contact arm contact 25 has a free movement allowance within the range of +/-7.5 degrees, so that the influences of incomplete contact and the like caused by different mounting processes are avoided, and the contact area is effectively ensured. The positive feeder line grounding contact arm contact 25 is embedded with a magnet, and when the positive feeder line grounding contact arm contact 25 is in contact with the positive feeder line 10, the positive feeder line grounding contact arm contact can be in better reliable contact with the positive feeder line jacket 5 through the magnet.
Referring to fig. 1, 2, 5 and 6, the telescopic ejector rod 3 includes a first ejector rod joint 31, a second ejector rod joint 32, a limit contact ring spring 33, a limit contact ring 34, an angle hoop 35, a third ejector rod joint 36 and an ejector rod body 37, the first ejector rod joint 31 is installed on the top of the ejector rod body 37 and hinged to the positive feed line grounding contact arm 2, the second ejector rod joint 32 is installed on the upper half portion of the ejector rod body 37 and located below the first ejector rod joint 31, the second ejector rod joint 32 is hinged to the contact line wrist arm grounding contact arm 1, the ejector rod body 37 is fixed on the support 6 through the angle hoop 35, the limit contact ring spring 33 and the limit contact ring 34 are respectively sleeved on the ejector rod body 37, and the third ejector rod joint 36 is installed on the bottom of the ejector rod body 37 and connected to the driving device 4. In the actual working process, the up-and-down movement of the telescopic ejector rod 3 is used for driving and controlling the movement of the contact wire cantilever grounding contact arm 1 and the positive feeder line grounding contact arm 2, so as to further control the implementation or the removal of the grounding measures of the system, and the limit contact ring 34 is used for limiting the up-and-down stroke range of the telescopic ejector rod 3 and can be used as an in-place signal to be fed back to the electric control unit. The limit contact ring spring 33 has a certain buffer allowance for ensuring the full in-place or recovery of the contact arm and the up-down stroke.
Referring to fig. 7, the driving device 4 includes a worm gear 41, a handle 42 and a dc motor 43, wherein the worm gear 41 is abutted to the third ram joint 36 at the bottom of the telescopic ram 3, the dc motor 43 is mounted on the worm gear 41, and the handle 42 is connected to the worm gear 41 through a rotating shaft. The rotation of the worm gear 41 can be automatically controlled through the direct current motor 43 so as to control the lifting of the telescopic ejector rod 3, and the rotation of the worm gear 41 can be manually adjusted through the handle 42 so as to manually control the lifting of the telescopic ejector rod 3.
The specific working principle of the invention is as follows:
when the contact network is overhauled and the safety measure grounding operation is carried out, a handle 42 in a driving device 4 is manually operated or a direct current motor 43 is electrically controlled to drive a worm gear 41 to rotate, so that the upward movement of a telescopic ejector rod 3 is controlled, a contact line cantilever grounding contact arm 1 and a positive feeder line grounding contact arm 2 connected with the telescopic ejector rod 3 move downwards along with the upward jacking of the telescopic ejector rod 3, at the moment, the contact line cantilever grounding contact arm 1 is in contact with a contact line cantilever 7, the positive feeder line grounding contact arm 2 is in contact with a positive feeder line jacket 5, and the cantilever 7 is electrically connected with a contact line, so that the aim of grounding the contact line and the positive feeder line is fulfilled.
Dismantling safety measures: the handle 42 in the driving device 4 is operated manually or the electric control direct current motor 43 drives the worm gear 41 to rotate, so that the downward movement of the telescopic ejector rod 3 is controlled, the contact wire cantilever grounding contact arm 1 and the positive feeder line grounding contact arm 2 are restored to the initial state, the operation is stopped manually, or a position contact point signal is fed back to the electric control mechanism by the limit contact ring 34, the direct current motor 43 stops working, and the grounding measure dismantling operation of the contact wire and the positive feeder line is realized.
The joints of the executing mechanism are all provided with automatic recovery spring mechanisms, so that grounding misoperation caused by the influence of other external forces such as bird treading during the normal operation of the contact network is avoided, and meanwhile, enough acting force is ensured to enable the contact arm to return reliably when the executing mechanism recovers the operation.
This contact net safety measure operation earthing device simple structure, reasonable in design, degree of automation is high, and convenient operation can use electric control or manual control to accomplish the operation of tearing open of hanging of earth connection to possess intelligent interface, the automatic cloud platform of accessible realizes effectively solving the manual work and hangs the drawback of tearing open the earth connection operation and bring, provides work efficiency, and the operation is safer.
The grounding device for the contact network safety measure operation can be compatible with contact network safety measure operations of various power supply modes, and has strong practicability; the automatic cloud platform has the advantages that the electric control mechanism and the manual operation mechanism are arranged, the reliability and the working efficiency are improved, the electric control unit reserves an intelligent interface, and the automatic cloud platform is conveniently accessed.
The above description is only for the preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, and therefore, all equivalent or modifications that do not depart from the spirit of the present invention are intended to fall within the scope of the present invention.
Claims (7)
1. The utility model provides a contact net safeguard operation earthing device which characterized in that includes: a telescopic ejector rod arranged on the support along the vertical direction of the contact net support, a driving device arranged at the bottom of the telescopic ejector rod, a contact wire cantilever grounding contact arm arranged at the top of the support, one end of the contact wire wrist arm grounding contact arm is hinged on the telescopic ejector rod, the other end of the contact wire wrist arm grounding contact arm is vertically arranged between the two wrist arms of the contact wire along the vertical direction of the support column, and has no contact with the wrist arm, the positive feed line grounding contact arm is mounted on the top of the support and is opposite to the contact line wrist arm grounding contact arm, one end of the positive feeder line grounding contact arm is hinged on the top of the telescopic ejector rod, the other end of the positive feeder line grounding contact arm is suspended above the positive feeder line jacket on the positive feeder line, the middle part of the positive feeder line grounding contact arm is fixed on the positive feeder line shoulder frame through the base, and the positive feeder line jacket is arranged on the contact part of the positive feeder line and the positive feeder line grounding contact arm.
2. The contact net safety measure operation earthing device of claim 1, characterized in that: the contact line wrist-arm grounding contact arm comprises a contact line wrist-arm grounding contact arm rocker arm, a contact line wrist-arm grounding contact arm base, a contact line wrist-arm grounding contact arm spring hinge, a contact line wrist-arm grounding contact arm automatic recovery spring, a contact line wrist-arm grounding contact arm insulating rod, a contact line wrist-arm grounding contact arm contact and a rotating shaft, wherein a support lug is arranged on the contact line wrist-arm grounding contact arm base, the bottom of the contact line wrist-arm grounding contact arm insulating rod is fixed on the support lug of the contact line base through the rotating shaft, one end of the contact line wrist-arm grounding contact arm rocker arm is hinged on a telescopic ejector rod, the other end of the contact line wrist-arm grounding contact arm rocker arm is hinged with one end of the rotating shaft through the contact line wrist-arm grounding contact arm spring hinge, the contact line wrist, the contact wire cantilever ground contact arm contact is mounted on the top of the contact wire cantilever ground contact arm insulator spindle.
3. The contact net safety measure operation earthing device of claim 2, characterized in that: the contact wire wrist-arm grounding contact arm contact is hinged to the top of the contact wire wrist-arm grounding contact arm insulating rod and keeps a free movement allowance within the range of +/-7.5 degrees.
4. The contact net safety measure operation earthing device of claim 2, characterized in that: and a magnet is embedded in the contact of the contact wire cantilever grounding contact arm.
5. The contact net safety measure operation earthing device of claim 1, characterized in that: the positive feed line grounding contact arm comprises a positive feed line grounding contact arm rocker arm, a positive feed line grounding contact arm base, a positive feed line grounding contact arm automatic recovery spring, a positive feed line grounding contact arm insulating rod and a positive feed line grounding contact arm contact, wherein one end of the positive feeder line grounding contact arm rocker arm is hinged on the top of the telescopic ejector rod, the positive feeder line grounding contact arm base is fixedly arranged on the positive feeder line shoulder frame, the positive feeder line grounding contact arm base is connected with the positive feeder line grounding contact arm rocker arm through an automatic recovery spring, the positive feeder line grounding contact arm insulating rod is sleeved on the positive feeder line grounding contact arm rocker arm, the positive feeder line grounding contact arm contact is hinged at the front end of the positive feeder line grounding contact arm insulating rod, the positive feeder line grounding contact arm contact has a free movement allowance within the range of +/-7.5 degrees, the positive feeder line grounding contact arm contact is suspended above the positive feeder line, and a positive feeder line jacket at a good contact part with the positive feeder line grounding contact arm is arranged on the positive feeder line.
6. The contact net safety measure operation earthing device of claim 1, characterized in that: the telescopic ejector rod comprises a first ejector rod connector, a second ejector rod connector, a limiting contact ring spring, a limiting contact ring, an angle hoop, a third ejector rod connector and an ejector rod body, wherein the first ejector rod connector is installed at the top of the ejector rod body and is hinged to a positive feeder line grounding contact arm, the second ejector rod connector is installed at the upper half part of the ejector rod body and is located below the first ejector rod connector, the second ejector rod connector is hinged to a contact line grounding contact arm, the ejector rod body is fixed to a support column through the angle hoop, the limiting contact ring spring and the limiting contact ring are respectively sleeved on the ejector rod body, and the third ejector rod connector is installed at the bottom of the ejector rod body and is connected with a driving device.
7. The contact net safety measure operation earthing device of claim 6, characterized in that: the driving device comprises a worm gear, a handle and a direct current motor, wherein the worm gear is in butt joint with a third ejector rod joint at the bottom of the telescopic ejector rod, the direct current motor is installed on the worm gear, and the handle is connected with the worm gear through a rotating shaft.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010963011.5A CN112217001A (en) | 2020-09-14 | 2020-09-14 | Contact net safety measure operation earthing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010963011.5A CN112217001A (en) | 2020-09-14 | 2020-09-14 | Contact net safety measure operation earthing device |
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| CN112217001A true CN112217001A (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010963011.5A Pending CN112217001A (en) | 2020-09-14 | 2020-09-14 | Contact net safety measure operation earthing device |
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| CN111525296A (en) * | 2020-05-27 | 2020-08-11 | 南京盾捷电气科技有限公司 | Automatically-controlled grounding wire device hung on contact net and control method thereof |
| CN211455981U (en) * | 2020-02-18 | 2020-09-08 | 广州铁路科技开发有限公司 | Automatic earthing device of formula of pushing down |
| CN213026555U (en) * | 2020-09-14 | 2021-04-20 | 广东雅达电子股份有限公司 | Contact net safety measure operation earthing device |
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- 2020-09-14 CN CN202010963011.5A patent/CN112217001A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH618542A5 (en) * | 1977-07-15 | 1980-07-31 | Alpha Ag | Single-column interrupter for high-voltage installations |
| JPH04295215A (en) * | 1991-03-25 | 1992-10-20 | Ngk Insulators Ltd | Automatic grounding device for grounding conductor |
| CN206098759U (en) * | 2016-08-31 | 2017-04-12 | 河北金泽电气有限公司 | Underground railway track meets ground wire device |
| CN109473790A (en) * | 2018-08-16 | 2019-03-15 | 金华送变电工程有限公司 | It is a kind of can the Ground wire with insulation ocver Special grounding stick that hangs of long range straight line |
| CN110061370A (en) * | 2019-04-29 | 2019-07-26 | 谭加新 | A kind of portable suspended insulated guide wire earthing or grounding means |
| CN211455981U (en) * | 2020-02-18 | 2020-09-08 | 广州铁路科技开发有限公司 | Automatic earthing device of formula of pushing down |
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