CN112510394A - Combined type electricity testing grounding device and contact net electricity testing grounding control system - Google Patents

Abstract

The invention discloses a combined type electricity testing grounding device and a contact net electricity testing grounding control system, wherein the device comprises a mounting bracket, a driving device and an electricity testing grounding rod assembly; the electricity testing grounding rod assembly comprises a first insulating rod, a grounding knife, a detector and a metal rod; the driving device is connected with the rear end of the first insulating rod and is used for driving the first insulating rod to swing; grounding switch and detector all set up the front end at first insulating rod, and the metal rod is under free state, and the front end of metal rod is located the opening side of grounding switch, opening side and metal rod are arranged side by side on the extending direction along the contact net. The system is based on the device. The device and the system that this scheme of adoption provided not only are convenient for realize testing electricity ground connection intellectuality and automation, make simultaneously test electricity earthing device can integrate, make and test electricity ground connection and accomplish at the action in-process that lasts, simultaneously for prior art, have to accomplish to test electricity, ground connection characteristics more reliable and safe.

Description

Combined type electricity testing grounding device and contact net electricity testing grounding control system

Technical Field

The invention relates to the technical field of rail transit, in particular to a combined type electricity testing grounding device and a contact net electricity testing grounding control system.

Background

In the field of rail transit, electrified railway contact networks are arranged in places such as a locomotive service section servicing yard, a bullet train section (station) overhaul warehouse, a vehicle section overhaul warehouse, a passenger service station overhaul warehouse, a subway vehicle section overhaul warehouse and the like, and before roof servicing, overhaul, equipment maintenance and other work, operations such as disconnecting switch brake power-off, electricity testing, residual electricity release, grounding and the like need to be executed.

After present contact net outage, test the electric mode that all adopts manual operation electroscope, need the manual work to test the pole and carry out 1 times the electrified detection before testing the electricity promptly, after contact net isolator separating brake has a power failure, the operator will test the pole and lift up along the rail direction, carry out the cubic with testing the touching of pole metal head and hugging closely the contact net and test the electricity, confirm that it does not have audible and visual alarm to test the pole, show electroless (if appear reputation, audible signal, it still has the electricity to show, nevertheless can't judge the voltage level, need ground service driver bow detection voltage that rises).

This kind of traditional electricity mode of testing, whole process relies on the manual work completely, and intensity of labour is big, and work efficiency is low, has greatly restricted electric passenger train's maintenance and has been reorganized and prepare to the development of mechanization, automation and intelligent control direction, requires the cubic to test the electricity because worry artificial error causes the condition of missing testing, has certain potential safety hazard, is unfavorable for the safety in production.

The grounding device is a protection device which ensures the safety of the overhaul operation areas of electric locomotives, motor train units, urban rail trains and other trains and safely grounds the contact networks in the areas. After the isolating switch is switched off and powered off, the car roof overhauling operation area can be reliably grounded after electricity is tested and residual electricity is released, the electricity of the overhauling operation area is ensured, and the personal safety of operators is ensured.

The further optimization of the contact network technology is undoubtedly significant to the innovation of the rail transit technology.

Disclosure of Invention

Aiming at the technical problem that the further optimization of the contact network technology is provided, and the important significance is undoubtedly brought to the innovation of the rail transit technology, the invention provides the combined type electricity testing grounding device and the contact network electricity testing grounding control system.

The invention provides a combined type electricity testing grounding device and a contact net electricity testing grounding control system, which solve the problems through the following technical key points, wherein the combined type electricity testing grounding device comprises a mounting bracket, a driving device fixed on the mounting bracket and an electricity testing grounding rod component connected to the output end of the driving device;

the electricity testing grounding rod assembly comprises a first insulating rod, a grounding knife fixed on the first insulating rod, a detector which is rotatably connected with the first insulating rod and used for testing electricity, and a metal rod used as a metal head of the detector;

the driving device is connected with the rear end of the first insulating rod and used for driving the first insulating rod to swing, and the rotating shaft forming the rotatable connection and the rotating shaft forming the swing are parallel to each other;

grounding switch and detector all set up the front end at first insulating rod, and the metal rod is under free state, and the front end of metal rod is located the opening side of grounding switch, opening side and metal rod are arranged side by side on the extending direction along the contact net.

Regarding the electric examination of contact net, at present, although electronic earthing device has appeared, and electronic earthing device can drive earthing rod and contact net and keep contact or separation, but prior art is installation limit switch mechanism on the couple, rotates through limit switch signal control actuating mechanism, realizes the contact or the separation of couple and contact net. When couple and contact net are close, if limit switch fault missend a signal, rotate and stop, just can produce virtual connecing (unsuccessful ground connection) this moment, nevertheless the dispatch is looked over through the camera and is also hardly found, can cause huge threat to operation personnel's life safety.

Meanwhile, in the prior art, the corresponding electricity testing component and the grounding component are mutually independent components, if the electricity testing component is adopted to complete the electricity testing of the contact network, if the voltage on the contact network is 0 or less than 5KV, the grounding operation is executed, and if not, the grounding operation can be executed after the discharging treatment is carried out according to the situation. The current mode of testing the electricity has also decided to test electric subassembly and contact net phase separation after accomplishing contact net ground connection, so current mode of operation and corresponding subassembly setting mode have decided prior art can not test the electricity in real time for accomplishing the contact net after the ground connection.

To above problem, this scheme provides a specific combined type tests electric earthing device, and in the concrete structural design, the installing support is as the device frame of above device, drive arrangement is used for the drive to test the swing of electric earthing rod subassembly, sets up to simultaneously to test electric earthing rod subassembly and include ground connection sword and detector, and when concrete fortune was used, connect the earth connection on the ground connection sword to realize the contact net ground connection after ground connection sword and contact net are connected, the detector is used for the contact net to test the electricity, if be used for voltage detection or voltage level to detect. Simultaneously setting as follows: grounding switch and detector all set up the front end at first insulating pole, and the metal rod is under free state, and the front end of metal rod is located the opening side of grounding switch, opening side and metal rod are arranged side by side in the extending direction along the contact net, like this, when testing electric grounding bar subassembly and swinging to grounding switch opening side under drive arrangement's effect, at first metal rod and contact net contact, at this moment, utilize the detector can accomplish the electricity operation of testing of contact net, when testing the electricity result and satisfying the ground connection condition, test electric grounding bar subassembly further swing, the metal rod rotates for first insulating pole this moment, thereby make the contact net can be by in the opening side embedding grounding switch of grounding switch, thereby accomplish the ground connection of contact net. Above accomplish to test electric to the swing in-process of electric earthing rod subassembly of testing of ground connection, the metal rod remains throughout with the contact state of contact net, finally makes the cooperation relation of earthing knife and detector and contact net make respectively all can exert corresponding electricity of testing and ground connection function.

As described in the above-mentioned workflow, the device adopts the same driving device, and carries the detector and the grounding knife on the electricity testing grounding rod assembly, and simultaneously, by limiting the connection relation of the metal rod on the detector and the position relation of the metal rod and the grounding knife, the operation of first testing electricity and then grounding of the contact net can be realized in a continuous process of a swinging direction, namely, the scheme provides an electricity testing and grounding integrated scheme; based on the prior art, the technical personnel in the field can easily realize the automatic control of the driving device and the automatic judgment of the electricity testing result, so that the mode can replace the traditional manual electricity testing operation, realize the automation and the intellectualization of the electricity testing and the grounding of the contact network, and simultaneously avoid the occurrence of dangerous accidents and improve the work efficiency of the electricity testing and the grounding of the contact network; regarding the electricity testing of the contact net, as the metal rod can be turned in the process that the contact net goes deep into the grounding knife, the contact net cannot restrict the further swing of the electricity testing grounding rod assembly, and meanwhile, the metal rod can be always contacted with the contact net in the process of swinging relative to the first insulating rod, the situation of electricity testing virtual connection can be effectively avoided by adopting the scheme; regarding the electric protection is tested to the contact net, because the metal rod can contact with the contact net all the time for the in-process of first insulator spindle wobbling, so accomplish with the cooperation back of contact net at the earthing knife, the electric protection is tested to the contact net still can be realized to the detector for the in-process of detector at contact net ground connection still can realize in real time that the contact net tests the electric protection.

This scheme is when concrete application, but preferred setting up to pass through the articulated shaft with first insulation pole rotatable coupling's detector and realize rotatable coupling, set up elastomeric element simultaneously between detector and first insulation pole, if set up the torsional spring, above torsional spring is used for retraining the metal rod under free state, make the metal rod be located open side's front side, so that test electric ground bar subassembly at the swing in-process, the metal rod is prior to grounding sword and contact net contact, then test the electricity through testing the in-process that electric ground bar subassembly further swings in order to realize grounding sword and contact net and be connected, elastic deformation takes place for above elastomeric element, through elastic deformation energy storage, keep the reliable contact relation of metal rod and contact net.

As a person skilled in the art, the above-mentioned continuous action process is a unidirectional swing process from the swing of the electroscopic grounding rod assembly to the matching of the grounding knife and the contact net: after the electricity testing is successful, the grounding device swings further to complete grounding of the contact net, so that the swinging of the electricity testing grounding ring assembly is not continuous. Preferably, the grounding is completed by adopting a mode of swinging discontinuously, such as further swinging after the electrification passes.

As a further technical solution of the above-mentioned combined type electricity-testing grounding device:

as a technical scheme convenient to realize that detector and first insulating rod are reliably connected and insulating connection, set up to: the electricity testing grounding rod assembly further comprises a connecting block and a second insulating rod, the connecting block is fixed on the first insulating rod, the rear end of the second insulating rod is rotatably connected with the connecting block, and the rear end of the detector is fixedly connected with the front end of the second insulating rod. In this scheme, the second insulator spindle is kept apart as the insulation between detector and the first insulator spindle, if be used for keeping apart detector and earth connection, the connecting block can adopt the metalwork for realize the reliable connection of two insulator spindles.

Regarding contact net ground connection, at present, the operation personnel must articulate the safety belt if when the operation of [ electric ] motor coach roof, and the stiff end of safety belt is hung on the contact net, and the contact net can be up-and-down, left and right drunkenness under the exogenic action, leads to its being connected unstablely with the couple to influence ground connection performance. However, the prior art only considers the up and down movement: the end of the grounding rod is provided with a damper, and the hook is kept in contact with the contact net by the output torque of the damper. If the attenuator became invalid, the outward appearance can not be found, also can not have signal output, causes the contact net to be connected unstably with the couple. To the above problem, this scheme sets up to: the grounding knife comprises a copper bar for forming a contact net clamping gap boundary;

the copper bar clamping device further comprises a driving piece used for driving the copper bar to move so as to change the width of the clamping gap. This scheme of adoption utilizes driving piece drive copper bar motion to change the width in centre gripping clearance reaches the purpose of centre gripping contact net, like this, can effectively avoid the contact net because human factor or other factors when the swing, the problem that the contact net ground connection became invalid appears.

As a corresponding drive form is simple, simple structure, simultaneously at the in-process of centre gripping contact net, can protect the technical scheme of contact net through elastic buffer, set up to: the grounding knife further comprises a grounding knife body, the grounding knife further comprises a push rod, a pressure spring, a connecting flange, a micro cylinder, a quick connector and an insulating air pipe, the micro cylinder is used as the driving piece, the quick connector is used as an air source pipe interface of the micro cylinder, and the insulating air pipe is used as the air source pipe;

the push rod and the pressure spring are connected in series to form an intermediate connecting piece, and the push rod is connected with a piston rod of the micro cylinder through the intermediate connecting piece;

the micro cylinder is connected with the grounding knife body through the connecting flange. This scheme is when concrete application, and the injecture that adopts insulating trachea to the air supply pipe aims at avoiding taking place the electric shock accident, quick-operation joint is convenient for realize the connection and the separation of corresponding part, is convenient for obtain the copper bar power supply for micro cylinder's driving piece mode: if the compressed gas contained in the compressed gas cylinder is adopted, the driving force can be provided for the micro cylinder. The specific action process of the scheme is as follows: through insulating trachea control miniature cylinder's air supply state, can make miniature cylinder obtain flexible action, above copper bar with flexible action follow-up when the contact of copper bar and contact net, the accessible the pressure spring produces compression deformation for the copper bar not only can reliably contact with the contact net, can avoid the contact net impaired simultaneously.

In the prior art, in the electricity testing process and the grounding process, taking the grounding process as an example, as described above, there may be a situation of virtual connection caused by a limit switch fault, and as a technical scheme for more accurately determining the in-place situation of a contact network relative to a grounding switch, the arrangement is as follows: the electric grounding rod assembly comprises a driving device, and is characterized by further comprising a torque detection device, wherein the torque detection device is used for detecting the torque of the driving device when the driving device drives the electric grounding rod assembly to swing. In this scheme, the utilization if the metal rod that matches the torsional spring contacts the back with the contact net, torque can increase to and the contact net is by the opening side embedding grounding sword of grounding sword, above open-ended bottom side and contact net contact back, the characteristics that torque can increase utilize the electric contact condition is tested to torque feedback contact net and the contact net ground contact condition, thereby obtain more reliable and contact relation with the contact net. As a person skilled in the art, the above torque magnitude detection can be based on a torque sensor, and can also be realized by monitoring the current magnitude of a servo motor as a power source on a driving device.

For avoiding test excessive swing of electric earthing rod subassembly and cause the contact net impaired, set up to: the device further comprises a limiting device for limiting the position of the swing dead point of the contact net towards the electricity testing grounding rod assembly. When the electric testing grounding rod assembly is used specifically, the limiting device is set to be a position limiting device located on a swinging track of the electric testing grounding rod assembly, and the electric testing grounding rod assembly is limited to swing further through the position limiting device.

For the availability before realizing the detector uses detects and realizes charging under the idle state to the detector to optimize this device's intellectuality and automation level, set up as: the device also comprises an upright post fixed on the mounting bracket, and a detection device and a charging device which are connected to the top of the upright post;

when the electricity testing grounding rod assembly deviates from the contact net and rotates under the action of the driving device, the detector can rotate to be matched with the detection device and the charging device;

under the matched state, detection device is used for detecting whether the detector can normally work, charging device is used for charging for the detector. Based on current detector design, in order to realize automation and intellectuality for being convenient for, above the detector is preferred to be set up to the detector that has wireless charging function and test electric result wireless transmission function, like this, above charging device is preferred to adopt wireless module of charging. Regarding to above detection device, if connect the third insulator spindle on the stand, connect simultaneously on the third insulator spindle and detect the piece, above detect the piece for the conductor and external power supply, before the detector formally applies to the contact net and tests the electricity, through metal rod and detection piece contact detector receive the electricity, compare with known external power supply parameter according to the result of testing the electricity of detector this moment, can derive the detector whether can normally work.

The existing driving device generally comprises a motor and a speed reducer, although the speed reducer has a certain self-locking function, the safety redundancy angle of a contact net and the device is considered, and the device is set as follows: still including being fixed in the locking device on the installing support, locking device is used for under this device standby or idle condition, realizes locking electroscopic ground rod subassembly on the installing support.

As a can be according to the practical application, change the first insulating rod for the technical scheme of installing the support extension in order to adapt to specific application, set up to: test electric earthing rod subassembly still includes the transition pole, the transition pole concatenates mutually with first insulating rod and regards as the rear end of testing electric earthing rod subassembly, it links to each other with drive arrangement to test electric earthing rod subassembly through the transition pole, and drive arrangement's hookup location on the transition pole is adjustable along the axis direction of transition pole, and above adjustable be used for realizing testing electric earthing rod subassembly for drive arrangement's extension length.

In order to realize automation, intellectuality or improve automation, intelligent level for the convenience, this scheme still discloses a contact net tests electric ground connection control system, include as above arbitrary any the combined type test electric earthing device, still include:

an electricity testing unit: the detector is connected with the touch screen and is used for detecting the voltage value or the voltage grade on the touch screen;

a detection unit: the detection device is used for detecting the resistance value and the charged state of a grounding wire on the grounding knife;

a manipulation unit: the device is used for realizing the man-machine interaction with the combined electricity testing grounding device.

The invention has the following beneficial effects:

(1) the invention can complete the quality detection of the detector as an electroscope, so that the electricity testing result is more reliable;

(2) the invention can charge the detector as an electroscope, and is convenient for realizing the intellectualization and automation of a device or a system or improving the intellectualization and automation level.

(3) The invention can complete contact type electricity testing and simultaneously identify whether the contact is in place accurately.

(4) The grounding device is very high in grounding reliability, the pressing block device comprising the copper bar, the driving piece and the like is additionally arranged on the grounding knife, the micro air cylinder is used for controlling the action of the copper bar, and the contact net is pressed on the grounding knife and the copper bar and the grounding knife body by means of the pressure spring, so that the contact net is tightly matched with the copper bar and the grounding knife body, and the grounding reliability is guaranteed.

(5) The detector and the grounding knife are matched, the detector and the grounding knife are driven, intelligentization and automation can be achieved conveniently, or intelligentization and automation levels can be improved conveniently, and problems of electricity testing safety and grounding safety can be solved conveniently, and electricity testing efficiency and grounding efficiency can be improved conveniently.

(6) The device or the system structure provided by the invention not only realizes equipment integration or complete set, but also is convenient for realizing real-time electricity testing in the grounding process of the contact net.

(7) Compared with the prior art, the device or the system provided by the invention has the characteristics of more reliable and safe electricity testing and grounding.

Drawings

Fig. 1 is a schematic structural view of a combined type electricity testing grounding device in an electricity testing state in which a specific embodiment is matched with a contact net;

fig. 2 is a schematic structural view of a grounding state of a specific embodiment of the combined type electricity testing grounding device in cooperation with a contact net;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is an enlarged view of a portion of FIG. 2 at C;

FIG. 6 is a front view of a grounding state of one embodiment of the composite electroscopic grounding device in cooperation with a contact net;

fig. 7 is a schematic structural view of a specific state in the process that an electricity testing grounding rod assembly is separated from a contact net and rotated to be matched with a detection device and a charging device in a specific embodiment of the combined electricity testing grounding device;

fig. 8 is a schematic structural view of a specific standby state of the combined type electricity testing grounding device in which the electricity testing grounding rod assembly is separated from the contact net and rotated to a specific state after being matched with the detection device and the charging device;

FIG. 9 is an enlarged view of a portion of FIG. 8 at D;

fig. 10 is a top view of a specific standby state of the composite electricity testing grounding device in an embodiment in which the electricity testing grounding rod assembly is detached from the contact net and rotated to a specific state after being engaged with the detecting device and the charging device;

FIG. 11 is a schematic view of a composite electroscopic grounding rod in an embodiment of the composite electroscopic grounding apparatus;

FIG. 12 is an enlarged view of a portion E of FIG. 11;

FIG. 13 is a schematic diagram of a pressing block device according to an embodiment of the composite electroscopic grounding device;

fig. 14 is a schematic structural diagram of an assembly formed by a driving device and a mounting bracket in an embodiment of a composite electroscopic grounding device.

The reference numbers in the figures are in order: 1. a mounting bracket, 2, a locking device, 3, an electricity testing grounding rod assembly, 4, a detection device, 5, a charging device, 6, a stand column, 7, a driving device, 8, a limiting device, 99, a contact net, 21, a locking cylinder, 22, a locking block, 23, a proximity sensor, 81, a connecting seat, 82, a limiting sensor, 31, a transition rod, 32, a first insulating rod, 33, a grounding wire, 34, a connecting block, 35, a second insulating rod, 36, a detector, 37, a metal rod, 38, a pressing block device, 39, a grounding knife, 41, a detection block, 42, a third insulating rod, 43, a connecting flange seat, 71, a servo motor, 72, a worm gear reducer, 73, a clamping device, 74, a diaphragm type coupler, 75, a bearing seat, 76, a mounting seat copper bar, 79, a hand wheel, 381, 382, a push rod, 383, a pressure spring, 384, a connecting flange, 385, a micro cylinder, 386. quick connector 387, insulating trachea.

Detailed Description

The present invention will be described in further detail with reference to examples, but the structure of the present invention is not limited to the following examples.

Example 1:

as shown in fig. 1 to 14, a composite electricity testing grounding device includes a mounting bracket 1, a driving device 7 fixed on the mounting bracket 1, and an electricity testing grounding rod assembly 3 connected to an output end of the driving device 7;

the electroscopic grounding rod assembly 3 comprises a first insulating rod 32, a grounding knife 39 fixed on the first insulating rod 32, a detector 36 which is rotatably connected with the first insulating rod 32 and is used for electroscopic, and a metal rod 37 which is used as a metal head of the detector 36;

the driving device 7 is connected with the rear end of the first insulating rod 32 and is used for driving the first insulating rod 32 to swing, and the rotating shaft forming the rotatable connection and the rotating shaft forming the swing are parallel to each other;

the grounding blade 39 and the probe 36 are both disposed at the front end of the first insulating rod 32, and when the metal rod 37 is in a free state, the front end of the metal rod 37 is located on the opening side of the grounding blade 39, and the opening side and the metal rod 37 are arranged side by side in the extending direction along the overhead line 99.

Regarding contact net 99 tests electricity, at present, although electronic earthing device has appeared, and electronic earthing device can drive earthing rod and contact net 99 and keep contacting or separating, but prior art is to install limit switch mechanism on the couple, and through limit switch signal control actuating mechanism rotation, the contact or the separation of couple and contact net 99 is realized. When couple and contact net 99 are close, if limit switch fault missend a signal, rotate and stop, just can produce virtual connecing (unsuccessful ground connection) this moment, nevertheless the dispatch is looked over through the camera and is also hardly found, can cause huge threat to operation personnel's life safety.

Meanwhile, in the prior art, the corresponding electricity testing component and the grounding component are mutually independent components, if the electricity testing component is adopted to test electricity of the contact network 99, if the voltage on the contact network 99 is 0 or less than 5KV, the grounding operation is executed, and if not, the grounding operation can be executed after the discharging treatment is performed according to the situation. The existing electricity testing mode also determines that the electricity testing component is separated from the contact net 99 after the contact net 99 is grounded, so that the existing operation mode and the corresponding component setting mode determine that the existing technology can not test the electricity of the contact net 99 in real time after the grounding is completed.

To above problem, this scheme provides a specific combined type tests electric earthing device, and in the concrete structural design, installing support 1 is as the device frame of above device, drive arrangement 7 is used for the drive to test the swing of electric earthing rod subassembly 3, sets up to simultaneously to test electric earthing rod subassembly 3 and includes earthing sword 39 and detector 36, and when concrete fortune, connect earth connection 33 on the earthing sword 39 to realize contact net 99 ground connection after earthing sword 39 is connected with contact net 99, detector 36 is used for contact net 99 to test the electricity, if be used for voltage detection or voltage level to detect. Simultaneously setting as follows: the grounding knife 39 and the detector 36 are both arranged at the front end of the first insulating rod 32, the metal rod 37 is in a free state, the front end of the metal rod 37 is located on the opening side of the grounding knife 39, the opening side and the metal rod 37 are arranged side by side in the extending direction of the contact net 99, so that when the electricity testing grounding rod assembly 3 swings towards the opening side of the grounding knife 39 under the action of the driving device 7, the metal rod 37 is firstly contacted with the contact net 99, at the moment, the electricity testing operation of the contact net 99 can be completed by the detector 36, when the electricity testing result meets the grounding condition, the electricity testing grounding rod assembly 3 further swings, at the moment, the metal rod 37 rotates relative to the first insulating rod 32, so that the contact net 99 can be embedded into the grounding knife 39 through the opening side of the grounding knife 39, and the grounding of the contact net 99 is completed. In the swing process of the electricity testing grounding rod assembly 3 for completing electricity testing to grounding, the metal rod 37 always keeps in a contact state with the contact net 99, and finally the grounding knife 39, the detector 36 and the contact net 99 are matched so that the grounding knife and the detector can respectively play corresponding electricity testing and grounding functions.

As described in the above-introduced work flow, the same driving device 7 is adopted in the device, the detector 36 and the grounding knife 39 are simultaneously carried on the electricity testing grounding rod assembly 3, and meanwhile, the operation of first testing electricity and then grounding of the contact net 99 can be realized in a continuous process in one swinging direction by limiting the connection relation of the metal rod 37 on the detector 36 and the position relation of the metal rod 37 and the grounding knife 39, namely, the scheme provides an electricity testing and grounding integrated scheme; based on the prior art, the technical personnel in the field can easily realize the automatic control of the driving device 7 and the automatic judgment of the electricity testing result, so that the above mode not only can replace the traditional manual electricity testing operation, realize the automation and the intellectualization of the electricity testing and the grounding of the contact net 99, but also can avoid the occurrence of dangerous accidents and improve the work efficiency of the electricity testing and the grounding of the contact net 99; regarding the contact net 99 to test electricity, because the metal rod 37 can be turned over in the process that the contact net 99 goes deep into the grounding knife 39, the contact net 99 cannot restrict the further swing of the electricity testing grounding rod assembly 3, and meanwhile, the metal rod 37 can be always contacted with the contact net 99 in the process of swinging relative to the first insulating rod 32, so that the situation of virtual connection of electricity testing can be effectively avoided by adopting the scheme; regarding the contact net 99 test electricity, because the metal rod 37 can always contact with the contact net 99 in the process of swinging relative to the first insulating rod 32, after the grounding knife 39 is matched with the contact net 99, the detector 36 still can realize the test electricity of the contact net 99, so that the detector 36 still can realize the test electricity protection of the contact net 99 in real time in the process of grounding the contact net 99.

When the scheme is in specific use, the detector 36 which is preferably arranged to be rotatably connected with the first insulating rod 32 is rotatably connected through the hinged shaft, meanwhile, an elastic part is arranged between the detector 36 and the first insulating rod 32, if a torsion spring is arranged, the torsion spring is used for restraining the metal rod 37 in a free state, so that the metal rod 37 is located on the front side of the opening side, in the swinging process of the electricity testing grounding rod assembly 3, the metal rod 37 is in contact with the contact net 99 before the grounding knife 39 contacts, then electricity testing is carried out in the process that the electricity testing grounding rod assembly 3 swings further to connect the grounding knife 39 with the contact net 99, the elastic part is elastically deformed, and the reliable contact relation between the metal rod 37 and the contact net 99 is maintained through elastic deformation energy storage.

As a person skilled in the art, the above-mentioned continuous action process is a unidirectional swing process from the swing of the electroscopic grounding rod assembly 3 to the matching of the grounding knife 39 and the contact net 99: after the electricity test is successful, the grounding device swings further to complete grounding of the contact net 99, so that the swinging of the electricity test grounding ring assembly is not continuous. Preferably, the grounding is completed by adopting a mode of swinging discontinuously, such as further swinging after the electrification passes.

Example 2:

as shown in fig. 1 to 14, the present embodiment is further defined on the basis of embodiment 1: as a technical scheme for conveniently realizing reliable connection and insulated connection between the detector 36 and the first insulating rod 32, the technical scheme is as follows: electroscopic earthing pole subassembly 3 still includes connecting block 34 and second insulator spindle 35, connecting block 34 is fixed in on the first insulator spindle 32, the rear end and the connecting block 34 rotatable coupling of second insulator spindle 35, the rear end of detector 36 and the front end fixed connection of second insulator spindle 35. In this embodiment, the second insulating rod 35 serves as an insulating isolation between the detector 36 and the first insulating rod 32, for example, to isolate the detector 36 from the ground line 33, and the connecting block 34 may be made of a metal member for reliable connection of the two insulating rods.

Regarding the grounding of the contact net 99, at present, an operator must hang a safety belt when working on the roof of the electric bus, the fixed end of the safety belt is hung on the contact net 99, and the contact net 99 can move up and down, left and right under the action of external force, so that the connection between the contact net 99 and a hook is unstable, and the grounding performance is affected. However, the prior art only considers the up and down movement: the damper is arranged at the tail end of the grounding rod, and the hook is kept in contact with the contact net 99 by the output torque of the damper. If the damper is invalid, the appearance cannot be found, and no signal is output, so that the connection of the contact net 99 and the hook is unstable. To the above problem, this scheme sets up to: the grounding knife 39 comprises a copper bar 381 used for forming the boundary of the clamping gap of the contact net 99;

the copper bar 381 is driven to move by a driving piece so as to change the width of the clamping gap. This scheme of adoption utilizes driving piece drive copper bar 381 to move and changes the width in centre gripping clearance reaches the purpose of centre gripping contact net 99, like this, can effectively avoid contact net 99 because human factor or other factors when the swing, the problem that contact net 99 ground connection became invalid appears.

As a corresponding drive form is simple, simple structure, simultaneously at centre gripping contact net 99's in-process, can protect contact net 99's technical scheme through elastic buffer, set up to: the grounding knife 39 further comprises a grounding knife body, the grounding knife 39 further comprises a push rod 382, a pressure spring 383, a connecting flange 384, a micro cylinder 385, a quick joint 386 and an insulating air pipe 387, the micro cylinder 385 is used as the driving piece, the quick joint 386 is used as an air source pipe interface of the micro cylinder 385, and the insulating air pipe 387 is used as the air source pipe;

the push rod 382 and the pressure spring 383 are connected in series to form an intermediate connecting piece, and the push rod 382 is connected with a piston rod of the micro cylinder 385 through the intermediate connecting piece;

the micro cylinder 385 is connected with the grounding knife body through the connecting flange 384. This scheme is when concrete application, and the injecture that adopts insulating trachea 387 to the air supply pipe aims at avoiding taking place the electric shock accident, quick-operation joint 386 is convenient for realize the connection and the separation of corresponding part, is convenient for obtain copper bar 381 power supply for micro cylinder 385 driving piece mode: if compressed gas contained in a compressed gas cylinder is used, the driving force can be provided for the micro cylinder 385. The specific action process of the scheme is as follows: control microcylinder 385's air supply state through insulating trachea 387, can make microcylinder 385 obtain flexible action, above copper bar 381 with flexible action follow-up, when copper bar 381 and contact net 99 contact, the accessible pressure spring 383 produces compression deformation for copper bar 381 not only can reliably contact with contact net 99, can avoid contact net 99 impaired simultaneously.

In the prior art, in the electricity testing process and the grounding process, taking the grounding process as an example, as described above, there may be a situation of virtual connection caused by a limit switch failure, and as a technical scheme that can more accurately determine the in-place situation of the contact network 99 relative to the grounding switch 39, the arrangement is as follows: the electric grounding rod component is characterized by further comprising a torque detection device 4, wherein the torque detection device 4 is used for detecting the torque of the driving device 7 when the driving device drives the electric grounding rod component 3 to swing. In this scheme, if the metal rod 37 that has the torsional spring if the matching contacts with the contact net 99 after, torque can increase to contact net 99 is by the opening side embedding grounding sword 39 of grounding sword 39, above open-ended bottom side and contact net 99 after, the characteristics that torque can increase utilize torque feedback contact net 99 tests the electric contact condition and contact net 99 ground connection contact condition, thereby obtains more reliable and contact relation with contact net 99. As a person skilled in the art, the above torque magnitude detection can be based on a torque sensor, and can also be realized by monitoring the current magnitude of the servo motor 71 as a power source on the driving device 7.

In order to avoid the excessive swing of test electricity earthing rod subassembly 3 and cause contact net 99 impaired, set up as: the device further comprises a limiting device 8 for limiting the position of the swing dead point of the contact net 99 to the electricity testing grounding rod assembly 3. When the electric testing grounding rod component 3 is used specifically, the limiting device 8 is set to be a position limiting device located on the swing track of the electric testing grounding rod component 3, and the electric testing grounding rod component 3 is limited to swing further through the position limiting device.

To achieve availability detection before use of the detector 36 and to charge the detector 36 in an idle state, so as to optimize the level of intelligence and automation of the device, the following settings are made: the device also comprises an upright post 6 fixed on the mounting bracket 1, and a detection device 4 and a charging device 5 which are connected to the top of the upright post 6;

when the electricity testing grounding rod assembly 3 rotates away from the contact net 99 under the action of the driving device 7, the detector 36 can rotate to be matched with the detection device 4 and the charging device 5;

in the matching state, the detecting device 4 is used for detecting whether the detector 36 can work normally, and the charging device 5 is used for charging the detector 36. Based on the design of the existing detector 36, in order to realize automation and intellectualization, the above detector 36 is preferably configured as the detector 36 having a wireless charging function and a wireless transmission function of the electricity testing result, so that the above charging device 5 preferably employs a wireless charging module. Regarding the above detection device 4, if the third insulating rod 42 is connected to the column 6, and the detection block 41 is connected to the third insulating rod 42, where the detection block 41 is a conductor and is externally connected with an external power supply, before the probe 36 is formally applied to the catenary 99 for testing electricity, the metal rod 37 and the detection block 41 contact the probe 36 to receive electricity, and the electricity testing result of the probe 36 at this time is compared with the known external power supply parameters, so as to determine whether the probe 36 can normally work.

The existing driving device 7 generally comprises a motor and a speed reducer, although the speed reducer has a certain self-locking function, the existing driving device is set to be as follows from the safe redundancy angle of a contact net 99 and the device: still including being fixed in locking device 2 on installing support 1, locking device 2 is used for under this device standby or idle condition, realizes locking electroscopic grounding pole subassembly 3 on installing support 1.

As a technical scheme capable of changing the extending length of the first insulating rod 32 relative to the mounting bracket 1 to adapt to specific application according to actual application, the following technical scheme is provided: test electric earthing pole subassembly 3 and still include transition pole 31, transition pole 31 concatenates and regards as the rear end of testing electric earthing pole subassembly 3 with first insulating rod 32, it links to each other with drive arrangement 7 through transition pole 31 to test electric earthing pole subassembly 3, and the hookup location of drive arrangement 7 on transition pole 31 is adjustable along the axis direction of transition pole 31, and above adjustable be used for realizing testing electric earthing pole subassembly 3 for drive arrangement 7's extension length.

Example 3:

as shown in fig. 1 to 14, in order to facilitate automation and intellectualization or improve automation and intellectualization levels, the embodiment further discloses a contact net 99 electricity testing grounding control system, which includes the composite electricity testing grounding device according to any one of the above embodiments, and further includes:

an electricity testing unit: is connected with the detector 36 and is used for detecting the voltage value or the voltage grade on the contact net 99;

a detection unit: the resistance value and the charged state detection of the grounding wire 33 on the grounding knife 39;

a manipulation unit: the device is used for realizing the man-machine interaction with the combined electricity testing grounding device.

Example 4:

this example provides a more detailed and specific implementation based on the above examples: the utility model provides an electricity earthing device is tested to combined type to solve current manual operation and test the pole and detect, test the electricity, prior art exists couple and contact net 99 virtual connection, and contact net 99 is connected unstablely with the couple, and actuating mechanism lacks safety arrangement scheduling problem.

Another aim at of this scheme is to provide well contact net 99 tests electric ground control system to there is the voltage level to rise bow to detect, tests the electric result and needs artifical feedback in the current-testing existence of prior art, tests the electricity, the degree of automation of ground connection is low, and has untimely, inaccurate technical problem.

The combined type electricity testing grounding device comprises a mounting support 1, a locking protection device, a combined type electricity testing grounding rod, a detection device 4, a wireless charging device 5, a mounting upright post 6, a driving device 7, a limiting device 8 and the like, can safely and accurately complete automatic electricity testing and automatic grounding of a contact net 99, feeds back and displays results in real time, and is automatic and intelligent very high operating equipment and a system.

Electric earthing rod is tested to combined type can rotate around speed reducer output shaft, include:

one end of the transition rod 31 is connected with the output shaft of the speed reducer through a clamping device 73, and the other end of the transition rod is connected with a first insulating rod;

one end of the first insulating rod is connected with the transition rod 31, and the other end of the first insulating rod is provided with an electricity testing and grounding device;

the connecting block 34 is arranged between the electricity testing device and the first insulating rod and plays a role in connection and fixation;

the second insulating rod is arranged on the connecting block 34 to ensure high-voltage insulation between the connecting block 34 and the detector 36;

the detector 36 is arranged on the second insulating rod, can sense the voltage level and feed back the voltage level to the control system in real time through wireless signals, and can give out sound and light alarm;

the metal rod 37 is arranged on the detector 36, conducts the contact net 99 and the detector 36 and drives the electricity testing device to rotate around the connecting block 34;

the grounding knife 39 is connected with the first insulating rod through a connecting flange 384 and is hung on the contact net 99;

the briquetting device 38 is arranged on the connecting flange 384, the push rod 382 is pulled through the micro cylinder 385 to enable the compression spring 383 to contract, when the grounding knife 39 is hung on the contact net 99, the servo motor 71 detects that the torque changes, namely the rotation stops, the micro cylinder 385 pushes the push rod 382, the compression spring 383 recovers, the copper bar 381 is pushed to the contact net 99, and the contact net 99 is tightly connected with the grounding knife 39;

one end of the grounding copper wire is connected with the grounding knife 39, and the other end of the grounding copper wire is connected with the ground, so that the contact net 99 is safely conducted with the ground.

Locking protection device can test electric earthing rod locking protection with the combined type under equipment standby state, include:

the proximity sensor 23 is arranged on the side surface of the locking block 22, can sense the combined electroscopic grounding rod and sends out a stop signal;

the ultrathin cylinder is connected with the locking block 22 and can drive the locking block 22 to move forwards and backwards;

one end of the locking block 22 is connected with the ultrathin cylinder, and the other end of the locking block can lock and unlock the combined electroscopic grounding rod.

The detecting device 4 can detect the quality of the detector 36, and comprises:

one end of the detection block 41 is arranged on the third insulating rod and is connected with a power supply through a lead, before the detector 36 is used, the metal rod 37 is conducted, voltage is applied to the detector 36, and the quality of the detector 36 is detected;

the third insulating rod is arranged between the detection block 41 and the connecting flange 384 seat 43 and plays a role in insulating and isolating;

and one end of the connecting flange 384 seat 43 is connected with the third insulating rod, and the other end of the connecting flange is connected with the mounting upright post 6.

The wireless charging device 5 can wirelessly charge the battery of the detector 36, and ensure that the electric quantity of the detector 36 is sufficient.

Drive arrangement 7 enables the combined type and tests electric earthing rod and rotate, includes:

the servo motor 71 is connected with the input end of the worm gear speed reducer 72 and provides power for rotation;

one input end of the worm gear speed reducer 72 is connected with the servo motor 71, the other input end of the worm gear speed reducer is connected with the coupling, and the output end of the worm gear speed reducer is connected with the clamping device 73;

the clamping device 73 is connected with the output end of the speed reducer and can clamp the transition rod 31;

one end of the diaphragm type coupler 74 is connected with the input end of the speed reducer, and the other end of the diaphragm type coupler is connected with the hand wheel 79;

the bearing block 75 is connected with the shaft coupling shaft and plays a role in supporting rotation;

the mounting seat 76 is connected with the mounting bracket 1 and can be connected with a speed reducer and a bearing seat 75;

the hand wheel 79, which may be connected to the coupling shaft, is used in the event of motor failure emergency.

Stop device 8, the transfinite warning that can prevent earthing switch 39 not articulate contact net 99 includes:

the limit sensor 82 is arranged on the connecting seat 81, can sense the overrun of the composite electricity testing grounding rod and sends out stop and overrun signals;

and one end of the connecting seat 81 is connected with the upright post 6, and the other end is provided with the limit sensor 82.

Contact net 99 tests electric ground connection control system includes like above-mentioned combined type tests electric earthing device, still includes:

the electricity testing unit comprises a receiver and can receive an electricity testing voltage value or voltage grade;

the detection unit comprises a voltage sensor, a current sensor and a relay and is used for detecting the resistance value and the charged state of the grounding copper wire and ensuring the grounding reliability;

the control cabinet comprises an electricity testing operation button, a grounding operation button, an HIM screen, a control cabinet and the like, and is used for operating and controlling the combined electricity testing grounding device by personnel;

the monitoring software comprises application software and is used for online real-time monitoring, abnormal alarming, historical data query, interaction with other systems and the like.

The combined type electricity testing grounding device needs to power off the contact network 99 before use, firstly an operator submits a power off application, the motor train unit pantograph is confirmed to be lowered and all personnel are evacuated through maintenance scheduling, the isolation switch is normally monitored, monitoring software displays that the states of all modules of equipment are normal, the operator confirms that the states of field equipment are normal, and the operator can agree with a breakpoint application. An operator cuts off power through a field control cabinet of the safety interlocking monitoring system, presses an alarm button after scheduling agreement, and performs alarm broadcasting for three times; after the warning broadcasting in the warehouse is finished, the field scheduling applies for the brake-separating indication to the maintenance scheduling; after receiving the request of on-site scheduling and checking and confirming, the maintenance scheduling gives an indication signal of 'opening brake' of the station track; after an operator and a field scheduling confirmation 'brake-off available indicator lamp' lamp is turned on, the operator presses a 'brake-off' button (more than 3S); operator, field scheduling joint confirmation: the isolating switch control cabinet is turned on by a 'no electricity' lamp, the 'no electricity' display board displays 'no electricity', and the isolating switch knife switch is switched off in place.

The combined type electricity testing grounding device is used for controlling the power-on and power-off of the detection device 4 through the control cabinet by an operator, whether the test detector 36 is normal or not is detected, the combined type electricity testing grounding rod is controlled to automatically test electricity after normal operation, if the contact network 99 is displayed to be electrified, discharging processing is needed according to the situation when the voltage is larger than 5KV, the combined type electricity testing grounding rod is not larger than 5KV or is not electrified, automatic grounding operation is normally executed, after the electricity testing device displays the situation of no electricity after the automatic grounding rod, the control system displays 'no electricity' and 'a hanging rod', and after safe reset, manual grounding rod.

The foregoing is a more detailed description of the present invention in connection with specific preferred embodiments thereof, and it is not intended that the specific embodiments of the present invention be limited to these descriptions. For those skilled in the art to which the invention pertains, other embodiments that do not depart from the gist of the invention are intended to be within the scope of the invention.

Claims (10)

1. The combined type electricity testing grounding device is characterized by comprising a mounting bracket (1), a driving device (7) fixed on the mounting bracket (1) and an electricity testing grounding rod component (3) connected to the output end of the driving device (7);

the electricity testing grounding rod assembly (3) comprises a first insulating rod (32), a grounding knife fixed on the first insulating rod (32), a detector (36) which is rotatably connected with the first insulating rod (32) and is used for testing electricity, and a metal rod (37) serving as a metal head of the detector (36);

the driving device (7) is connected with the rear end of the first insulating rod (32) and is used for driving the first insulating rod (32) to swing, and the rotating shaft forming the rotatable connection and the rotating shaft forming the swing are parallel to each other;

the grounding knife and the detector (36) are arranged at the front end of the first insulating rod (32), the front end of the metal rod (37) is located on the opening side of the grounding knife in a free state, and the opening side and the metal rod (37) are arranged side by side in the extending direction along the overhead line system (99).

2. The combined type electricity testing grounding device according to claim 1, wherein the electricity testing grounding rod assembly (3) further comprises a connecting block (34) and a second insulating rod (35), the connecting block (34) is fixed on the first insulating rod (32), the rear end of the second insulating rod (35) is rotatably connected with the connecting block (34), and the rear end of the detector (36) is fixedly connected with the front end of the second insulating rod (35).

3. The composite electrical grounding device of claim 1, wherein the grounding blade comprises copper bars (381) for forming a boundary of a contact net (99) clamping gap;

the copper bar clamping device further comprises a driving piece used for driving the copper bar (381) to move so as to change the width of the clamping gap.

4. The combined type electricity testing grounding device of claim 3, wherein the grounding knife further comprises a grounding knife body, the grounding knife further comprises a push rod (382), a pressure spring (383), a connecting flange (384), a micro cylinder (385), a quick coupling (386) and an insulating air pipe (387), the micro cylinder (385) is used as the driving member, the quick coupling (386) is used as an air supply pipe interface of the micro cylinder (385), and the insulating air pipe (387) is used as the air supply pipe;

the push rod (382) and the pressure spring (383) are connected in series to form an intermediate connecting piece, and the push rod (382) is connected with a piston rod of the micro cylinder (385) through the intermediate connecting piece;

the micro cylinder (385) is connected with the grounding knife body through the connecting flange (384).

5. The compound electroscopic earthing device according to claim 1, further comprising a torque detection device for detecting the torque of said driving device (7) when driving the electroscopic earthing rod assembly (3) to swing.

6. The combined type electricity testing grounding device according to claim 1, further comprising a limiting device (8) for limiting the position of the swing dead point of the electricity testing grounding rod component (3) to the contact net (99).

7. The combined type electricity testing grounding device of claim 1, further comprising a stand column (6) fixed on the mounting bracket (1), and a detection device (4) and a charging device (5) connected to the top of the stand column (6);

when the electricity testing grounding rod assembly (3) deviates from the contact net (99) to rotate under the action of the driving device (7), the detector (36) can rotate to be matched with the detection device (4) and the charging device (5);

under the cooperation state, detection device (4) are used for detecting whether detector (36) can normally work, charging device (5) are used for charging for detector (36).

8. The combined type electricity testing grounding device according to claim 1, characterized in that, it further comprises a locking device (2) fixed on the mounting bracket (1), said locking device (2) is used to lock the electricity testing grounding rod assembly (3) on the mounting bracket (1) when the device is in standby or idle condition.

9. The composite electricity testing grounding device according to claim 1, wherein the electricity testing grounding rod assembly (3) further comprises a transition rod (31), the transition rod (31) is connected in series with the first insulating rod (32) and serves as the rear end of the electricity testing grounding rod assembly (3), the electricity testing grounding rod assembly (3) is connected with the driving device (7) through the transition rod (31), and the connection position of the driving device (7) on the transition rod (31) is adjustable along the axial direction of the transition rod (31), and the adjustment is used for realizing the extending length of the electricity testing grounding rod assembly (3) relative to the driving device (7).

10. An electrical testing grounding control system of a contact network, comprising the composite electrical testing grounding device of any one of claims 1 to 9, further comprising:

an electricity testing unit: the detector (36) is connected with the contact net (99) and is used for detecting the voltage value or the voltage grade of the contact net;

a detection unit: the detection device is used for detecting the resistance value and the charged state of a grounding wire (33) on the grounding knife;

a manipulation unit: the device is used for realizing the man-machine interaction with the combined electricity testing grounding device.

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