CN105591343B - Centralized control type tension paying-off system - Google Patents
Centralized control type tension paying-off system Download PDFInfo
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- CN105591343B CN105591343B CN201610133454.5A CN201610133454A CN105591343B CN 105591343 B CN105591343 B CN 105591343B CN 201610133454 A CN201610133454 A CN 201610133454A CN 105591343 B CN105591343 B CN 105591343B
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- tension
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- control room
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/02—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
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- Fluid-Pressure Circuits (AREA)
Abstract
The invention designs a brand new tension paying-off system, which is not a traditional paying-off mode combined by a plurality of tension machines, but a brand new mode for paying-off tension by a system formed by a centralized control room unit, a power center and an execution unit. A centralized control room can be combined with a power center and at most four tension execution units; the octant column conductors can be deployed simultaneously. The utility model provides a centralized control formula tension unwrapping wire system, includes centralized control room, power center, execution unit, tailstock unit, and wherein, centralized control room control cabinet links to each other with power center control part, and power center tension delivery outlet connects several execution unit, and the tailstock delivery outlet connects several tailstock unit.
Description
Technical Field
The invention belongs to the field of mechanical control, and particularly relates to a centralized control intelligent tension paying-off system.
Technical Field
The tension machine is used as main force equipment for tension paying-off construction, and although the technical performance and control mode of a single equipment are improved for years, the traditional tension paying-off construction mode is not completely innovated. It is particularly pointed out that the individual devices that perform the tension-paying-out operation are still operated independently by their operators in the form of a one-man-machine. In view of the fact that, during the pay-off work, in particular in tension fields, multiple devices are required to work simultaneously to carry out the deployment task of the complete one-phase sub-conductor. Taking the current ultra-high voltage power grid as an example, the ultra-high voltage power grid mainly adopts two modes, respectively is + -800 kV direct current and 1000kV alternating current, wherein +/-800 kV has 6 subconductors in each phase, 1000kV has 8 subconductors in each phase, and the conductors have 1520mm 2 And 1250mm 2 Pattern. According to the technical requirement of wire spreading, the diameter of a tensioner wheel also needs to be increased to 1850mm or more, and considering the whole size and transportation of equipment, a single tensioner can only spread 2 sub wires at a time, so that a tension field needs 3 to 4 tensioners, and a spreading guide steel wire is addedThe rope traction machine at least needs 4 to 5 pieces of equipment in a tension field, each piece of equipment needs to be provided with 1 to 2 operators, in an actual cloth field, not only the arrangement space of the equipment needs to be considered, but also the working space of the operators needs to be considered, and the field arrangement difficulty is high; in addition, a plurality of devices together complete a work, which requires each device to be matched with mercy, and thus, higher requirements are put on site commanders and actual operators of the devices. The construction efficiency and the safety reliability are greatly dependent on the familiarity degree between operators and the cooperation between site commanders and them besides being influenced by the technical performance and the quality of the equipment itself. Finally, in the whole field construction, operators and construction equipment are mixed with the noise and dust, the working environment of the operators is bad, the working strength is high, and the safety risk is high.
Disclosure of Invention
The invention designs a brand new tension paying-off system, which is not a traditional paying-off mode combined by a plurality of tension machines, but a brand new mode for paying-off tension by a system formed by a centralized control room, a power center and an execution unit. A centralized control room can be combined with a power center and at most four tension execution units; eight split conductors can be deployed simultaneously.
The utility model provides a centralized control formula tension unwrapping wire system, includes centralized control room, power center, execution unit, tailstock unit, and wherein, centralized control room control cabinet links to each other with power center control part, and power center links to each other with several execution unit and tailstock unit respectively through external interface.
Further, the centralized control room comprises a centralized control room shell, lifting lugs, openable windows, sealing windows, an air conditioner evaporator, an air conditioner compressor, a front window, a lighting lamp, a centralized control room door, an external electrical interface, an access door, a base, a seat and a control console; the base is positioned at the bottom of the centralized control outdoor shell, the air conditioner compressor is positioned at the outer side of the centralized control outdoor shell, the air conditioner evaporator, the console and the seat are arranged in the centralized control room, and the illuminating lamp is positioned at the upper end of the console; the centralized control room is connected with the power center, the centralized control room is provided with an RC12-10 microprocessor, the instrument panel of the control desk of the centralized control room is provided with a control switch, an operating handle, an operating knob, an indicator light, two centralized control displays and a working scene monitor.
Further, the power center comprises a power part and a control part, wherein the power part is provided with a battery box, a hydraulic oil tank, an engine, a transfer case, cartridge valve blocks, a lead frame throttle valve, an air filter, a main pump group, an auxiliary pump, a fan pump, a diesel oil tank and a radiator, the power center takes a diesel engine as power, the main pump group and the gear pump are driven to work through the transfer case, high-pressure hydraulic oil pumped by each pump is distributed to each group of external hydraulic interfaces through the hydraulic cartridge valve blocks, and power is provided for a plurality of groups of traction or tension execution units through a hydraulic pipeline; the radiator is positioned on the power front of center and two sides of the end.
The control part is provided with an instrument box, an external electrical interface, an external hydraulic interface and an oil return collecting block; the instrument box is arranged on the right side of the power center, a plurality of groups of external electrical interfaces are arranged below the right side of the power center, a plurality of groups of external main hydraulic interfaces are arranged on two sides of the front end of the power center, and the instrument box is positioned below the radiator; the tail part of the power center is provided with a plurality of groups of external auxiliary hydraulic interfaces which are positioned below the oil tank.
Further, the execution unit comprises a machine body part and consists of a guide wheel, a guide wheel bracket, a tension wheel, a supporting leg, a towing hook, a chassis, a tire, a ground anchor plate and a rubber tube disc; the hydraulic brake device comprises a hydraulic brake device, an external hydraulic interface and an external electric interface; the transmission device is positioned between the two phase tension wheels, and the external power system device is positioned at the tail part of the execution unit; the transmission device comprises a motor and a speed reducer; the motor drives the speed reducer, and the tension wheel is driven by the gear.
Further, the tailstock unit is used for installing the wire guide disc.
The invention designs a brand new tension paying-off system, which is not a traditional paying-off mode combined by a plurality of tension machines, but a brand new mode for paying-off tension by a system formed by a centralized control room, a power center and an execution unit. A centralized control room can be combined with a power center and at most four tension execution units; eight split conductors can be deployed simultaneously.
The power center mainly provides power for the system, a diesel engine is used as power to drive two main pump sets and five gear pumps to work through a transfer case, and high-pressure hydraulic oil pumped by each pump is distributed to an external hydraulic interface through a hydraulic cartridge valve block to provide power for the traction and tension executing unit through a hydraulic pipeline.
The tension executing unit is mainly used for tension paying-off operation and consists of two phases of tension wheels, each phase of tension wheel is provided with a respective motor and is driven by a speed reducer and a gear, the tension executing unit is provided with an external hydraulic interface which is connected with a power center through a hydraulic rubber tube, and the power provided by the power center can drive each phase of tension wheel to rotate positively and negatively so as to realize traction and wire feeding operation under traction working conditions; stepless speed regulation and safe braking can be realized under various working conditions. Compared with the same function tension machine, the structure is simple, the weight is reduced, the volume is reduced, and the on-site transportation is convenient.
The centralized control room is mainly used for operating, monitoring and controlling the whole system. In order to ensure the safety of operators, a humanized operation environment is provided, and the independent airtight operation room is designed. The operation of a plurality of devices is completed in the room by one person, and the display device in the operation room can display all information of the tension paying-off device in real time. The operation room is equipped with an air conditioner, a seat, illumination, communication and video monitoring system. Box house falls to ground a formula structure.
The tailstock unit is used for installing a wire guide disc.
The invention has the advantages that the invention breaks through the structure mode of one machine and one power of the existing tension machine, and the working mode of one person and one machine, invents a power center and an execution unit, and is uniformly controlled by a centralized control room. The system is highly integrated, convenient in command coordination, few in fault points and convenient in field arrangement; the single machine has light weight and convenient transportation.
Drawings
FIG. 1 is a centralized tension and (5) a general schematic diagram of a paying-off system.
Fig. 2 is a diagram of a power center of the centralized tension paying-off system.
FIG. 3 is a centralized tension pay-off a system power center transmission schematic diagram.
Fig. 4 is a schematic diagram of a centralized control room of the centralized control type tension paying-off system.
Fig. 5 is a block diagram of an execution unit of the centralized tension paying-off system.
Fig. 6 is a transmission structure diagram of the execution unit of the centralized control type tension paying-off system.
Fig. 7 is a diagram of the tail stock unit of the centralized tension paying-off system.
In the figure, a 001 centralized control room, a 002 power center, a 003 execution unit and a 004 tailstock unit are arranged.
The power center part 1 is provided with a battery box, a rear support leg, a 3-tail frame throttle valve, a 4 hydraulic oil tank, a 5 lifting point, a 6 engine, a 7-meter box, an 8-tire, a 9 transfer case, a 10-air filter, an 11 main pump (1), a 12 main pump (2), a 13-auxiliary pump, a 14-fan pump, a 15-diesel tank, a 16-cable interface, 17, 5-8-wheel tension output ports, 18 radiators (1), 19 radiators (2), 20 front support legs, 21 towing hooks, 22 cartridge valve blocks (1), 23, 1-4-wheel tension output ports, 24 radiators (3), 25, cartridge valve blocks (2), 26 return oil collecting blocks, 27, 1-8-wheel tail frame power output ports, 29, cartridge valve blocks 1, 30 tail frame 1 power input and output ports, 31 tail frame 2 power input and output ports, 32, 1-path tension input and output ports, 33 and 2 paths tension input and output ports, 34, 3 tension inputs, 35, 4 tension inputs, 36, radiator 1-3, 37, 5 tension inputs, 38, 6 tension inputs, 39, 7 tension inputs, 40, 1 tension inputs, 41 tail stock 5 power inputs, 42 tail stock 6 power inputs, 43 cartridge valve blocks 2, 44, traction input 2, 45 tail stock 8 power inputs, 46, tail stock 7 power inputs, 47, gear pump 3-5, 48, oil absorption filters 4-7, 49, main pump 2, 50, engine and transfer case, 51, return oil filter, 52, main pump 1, 53, oil absorption filters 1-3, 54, gear pump 1-2, 55, tail stock 4 power inputs, 56, tail stock 3 power inputs, 57. traction input output 1;
the device comprises a guide wheel of a unit part 1', a guide wheel bracket of a 2', a tension wheel of a 3', a transmission part of a 4', a front supporting leg of a 5', a towing hook of a 6', a rubber tube disc of a 7', a chassis of a 8', a tyre of a 9', a ground anchor of a 10', a rear supporting leg of a 11', a rubber tube of a 12', a cable interface, a motor 1 of a 13', 14' speed reducer 1, 15 'reel 1, 16' reel 2, 17 'speed reducer 2, 18' motor 2, 19 'interface panel, 20'1 wheel oil feed, 22'1 wheel braking, 23' cable interface, 24'1, 2 wheel motor housing oil return, 25'2 wheel oil return, 26'2 wheel braking, 27'1 wheel oil return.
Detailed Description
The invention will be further elucidated with reference to the drawings of the description, it being understood that the preferred embodiments are only used for a more clearly explained embodiment without further restrictions.
As shown in fig. 1, a centralized control type tension paying-off system comprises a centralized control room, a power center, an execution unit and a tailstock unit, wherein, the centralized control room console is connected with the power center control part, and the power center is respectively connected with the execution units and the tailstock units through external interfaces. The traditional tension machine is separated from the use method of one machine and one person, and a power center is used, the power is provided for a plurality of execution units, and the whole paying-off system can be operated by one person in a centralized control room.
Fig. 2 is a schematic diagram of a power center structure, and fig. 3 is a schematic diagram of power center transmission.
The power center is designed to be powered by a diesel engine, the engine drives a transfer case to work through a coupler, the transfer case drives two sets of main pump sets and five gear pumps to work, oil pumped by the main pump sets is distributed to all external hydraulic interfaces through integrated cartridge valve blocks, and the oil is connected with a traction or tension execution unit through hydraulic rubber pipes; the main pump variable control handle controls the displacement size and displacement direction of the main pump through the processor so as to control the speed of the tension or traction executing unit and the traction and wire feeding; the tension control knob controls the pressure of the tension system through the processor to realize tension control of the tension execution unit; hydraulic oil beaten by the two gear pumps is distributed to an external hydraulic interface through an integrated cartridge valve block to provide power for eight lead frame units; the three gear pumps provide power for the three sets of heat dissipation systems;
power center instrument box the control system is shown. The basic control of the power center hydraulic system can be realized through a control handle, a knob and a switch in the instrument box, and related parameters are displayed and observed through a display in the instrument box. In actual use, the speed and the direction of the eight-phase tension wheel can be controlled through eight groups of external main hydraulic interfaces, and the pressure of eight groups of lead frame units can be controlled through eight groups of external auxiliary hydraulic interfaces. And 8 groups of oil inlet pipelines, oil outlet pipelines and brake pipelines are correspondingly arranged, and a group of oil inlet and outlet pipelines are also designed for the supporting legs.
The power center configured as described above has the following capabilities:
the power (various specifications) can be provided for 4 double-wheel tension execution units (8 split tension paying-off) at the same time.
The power may be provided to 1 180kN traction performing unit or to 2 90kN traction performing units at the same time.
Can simultaneously provide power for 8 tension machine lead frames (8 split tension paying-off).
The power center is designed into a single-bridge pulling type structure; two tires are arranged for pulling and transporting;
the instrument box is arranged in the power center, so that the engine control (starting, stopping and speed regulation) of the power center can be realized, and the working control of the two sets of main pumps and the working pressure control of the five gear pumps can be realized; the display in the instrument box can display various working parameters of the engine of the power center and working states of the two variable main pumps and the five gear pumps;
the power center is provided with a signal socket for receiving the speed sensor of the execution unit, and the paying-off speed and paying-off mileage of the tension execution unit can be displayed.
The power center is provided with three sets of heat dissipation systems so as to dissipate heat of the whole hydraulic system and ensure the normal operation of the system.
The power center is designed with two RC12-10 processors to control the whole system, and all input instructions and execution instructions are completed by the processors.
The power center is designed with two sets of integrated hydraulic cartridge valve block systems.
The power center is provided with front and rear supporting legs to realize adjustment and fixation of the power center.
The power center is designed with a hanging point, can be lifted at a single point.
FIG. 4 is a schematic diagram of a centralized control room.
The utility model provides a centralized control intelligence tension unwrapping wire system centralized control room, includes the lug, can open the window, sealed window, air conditioner evaporimeter, air condition compressor, seat, control cabinet, wiper, preceding window, light, openable access door, base, cable interface, power source, centralized control room door, door handle, centralized control room, centralized control treater, centralized control display. The external dimension of the centralized control room is 230mm x 1700mm x 2200mm, and the centralized control room adopts a totally-enclosed structure. Has good heat insulation and sound insulation properties. The periphery and the inner periphery of the centralized control room are made of Q235A cold-rolled plates, and the interior material is made of black true hole leather with heat absorption and sound insulation. The centralized control room is a left side and right side double door, and is provided with a locking device. Openable aluminum alloy windows are arranged on the left side and the right side of the centralized control room. Centralized control room is equipped with 1.5P in interior cooling and heating integrated civil air conditioner. The 220V LED illuminating lamp is installed in the centralized control room, is reasonable in position and is provided with a switch. The wiper is 24V, and the wiper is furnished with the water spout, kettle, water pipe. The seats of the centralized control room are one set of comfortable seats with front and rear height adjusting type, and the two sets of foldable seats are arranged on the rear wall of the centralized control room. The centralized control room provides a drawing manufacturing control console according to the first party, and the cable connector control box is opened according to drawing requirements. And fire extinguishers are arranged in the centralized control room, and the glass breaking hammers are respectively arranged. The front window of the centralized control room is provided with a sunshade curtain. The centralized control room is provided with two color displays to realize real-time display of system data. The specific display parameters are as follows:
1. parameters related to engine (speed, oil pressure, water temperature, throttle position.)
2. Presetting and actually tensioning eight-phase tension wheels;
3. eight-phase tension pulley paying-off speed;
4. paying-off mileage of eight-phase tension wheel;
5. working pressure of two lead frame systems;
6. the working pressure of the two power systems;
the centralized control room is provided with the following operation functions;
1. control of a power plant
Tension adjustment of 2.8 phase tension pulley.
3.2 set of traction and (5) controlling a system.
4.2 sets of auxiliary system control.
The centralized control room is provided with a working scene monitor which can display the whole working scene and can effectively monitor the working condition of the paying-off system;
all control switches, operating handles, operating knobs, indicator lights, displays and the like of the centralized control room are arranged on a control panel of the centralized control room for an operator to control and observe. The centralized control room console is a place where input signals are concentrated, and is required to be provided with an RC12-10 microprocessor, and all input signals such as control instructions are connected to the signal input end of the RC12-10 microprocessor. Calculating input port resources of the RC12-10 microprocessors, wherein the input port quantity of 1 RC12-10 microprocessor can completely meet the requirement of inputting instruction books on all console panels, and arranging 1 RC12-10 microprocessor in a centralized control unit; information of all control handles, knobs and switches is input into a processor in a centralized control room, and the processor and a display are connected with a controller of a power center through a CAN bus, so that control and information sharing of each execution unit are realized.
FIG. 5 is a block diagram of a centralized tension payout system execution unit; FIG. 6 is a diagram showing a transmission structure of an execution unit of the centralized tension paying-off system
The centralized control tension paying-off system execution unit comprises a machine body part, a machine body part and a machine body part, wherein the machine body part consists of a guide wheel, a guide wheel bracket, a tension wheel, supporting legs, a towing hook, a chassis, a tire, a ground anchor plate, a rubber tube disc, a transmission device, a braking device, an external hydraulic interface and an external electric interface; wherein, the two-phase tension wheels are both arranged on the main beam through a tension wheel shaft, the guide wheel support is located the execution unit rear side, is connected with the girder for install the guide wheel. The tension executing unit is composed of two-phase tension wheels, each phase tension wheel is provided with a transmission device which is independent, and the transmission device comprises a motor, a speed reducer and a transmission gear pair. The execution unit does not need to be provided with a special power system, compared with the tension machine with the same function, the tension machine has simple structure, the weight is reduced, the volume is reduced, the on-site transportation is convenient, and the failure rate is low.
And the actuating unit transmission and braking device transmits power through the sequence of the motor, the speed reducer gear, the tension wheel gear and the tension wheel to finish the winding and unwinding work. Wherein, be equipped with arresting gear between motor and the speed reducer, can realize the reliable braking of tension pulley.
The maximum diameter of the tension wheel of the execution unit can reach phi 1850mm, and the paying-off requirement of paying-off a wire with the maximum diameter phi 48mm can be met.
The tension executing unit is provided with a hydraulic external interface, and is connected with an external power system through a hydraulic rubber pipe, and the external power system can drive each phase of tension wheel to rotate positively and negatively so as to realize traction and wire feeding work under traction working conditions; stepless speed regulation and safety braking can be realized.
The two-phase tension wheel is provided with a parallel wheel device, and the two-phase tension wheel can be connected and combined into a one-phase tension wheel, so that the paying-off tension of the two-phase tension wheel can reach twice of that of a single phase, and the tension paying-off requirement of a special section can be met.
The tension executing unit is designed into a single-bridge pulling type structure and is provided with two tires so as to facilitate pulling transportation;
the tension executing unit is provided with a speed measuring device on each phase of tension wheel, and is connected with a processor of an external power system through an external electrical interface so as to measure the paying-off speed and paying-off mileage of the tension wheel.
The tension executing unit is provided with hydraulic front and rear supporting legs and two ground anchor plates to realize adjustment and fixation of the executing unit.
And hanging points are arranged on two sides of the top of the tension executing unit and are used for hanging, loading and unloading the tension executing unit.
The tension executing unit is provided with three sets of hydraulic rubber tube storage discs which are used for storing the hydraulic rubber tubes connected with the external power system during the non-working period of the equipment.
Fig. 7 is a schematic view of a tailstock unit for mounting a wire reel.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The centralized control type tension paying-off system is characterized by comprising a centralized control room, a power center, an execution unit and a tail frame unit, wherein a control console of the centralized control room is connected with a control part of the power center, the power center is respectively connected with a plurality of execution units and the tail frame unit through external interfaces, the power center comprises a power part and a control part, the power part is provided with a battery box, a hydraulic oil tank, an engine and a transfer case, the hydraulic system comprises a cartridge valve block, a lead frame throttle valve, an air filter, a main pump group, an auxiliary pump, a fan pump, a diesel tank and a radiator, wherein a power center is powered by a diesel engine, the main pump group and a gear pump are driven to work through a transfer case, high-pressure hydraulic oil pumped by each pump is distributed to each group of external hydraulic interfaces through the hydraulic cartridge valve block, and power is provided for a plurality of groups of traction or tension execution units through hydraulic pipelines; the heat radiator is positioned at two sides of the front end of the power center;
the control part is provided with an instrument box, an external electrical interface, an external hydraulic interface and an oil return collecting block; the instrument box is arranged on the right side of the power center, a plurality of groups of external electrical interfaces are arranged below the right side of the power center, a plurality of groups of external main hydraulic interfaces are arranged on two sides of the front end of the power center, and the instrument box is positioned below the radiator; the tail part of the power center is provided with a plurality of groups of external auxiliary hydraulic interfaces which are positioned below the oil tank; the execution unit comprises a machine body part, a guide wheel bracket and a tension wheel, the support leg, towing hook, chassis, tire, ground anchor plate, rubber tube disc make up; the hydraulic brake device comprises a hydraulic brake device, an external hydraulic interface and an external electric interface; the transmission device is positioned between the two phase tension wheels, and the external power system device is positioned at the tail part of the execution unit; the transmission device comprises a motor and a speed reducer; the motor drives the speed reducer, and the tension wheel is driven by the gear.
2. The centralized-control type tension pay-off system according to claim 1, wherein the centralized-control room comprises a centralized-control room housing, lifting lugs, openable windows, sealed windows, air-conditioning evaporators, air-conditioning compressors, front windows, illumination lamps, centralized-control room doors, external electrical interfaces, access doors, bases, seats, consoles; the base is positioned at the bottom of the centralized control outdoor shell, the air conditioner compressor is positioned at the outer side of the centralized control outdoor shell, the air conditioner evaporator, the console and the seat are arranged in the centralized control room, and the illuminating lamp is positioned at the upper end of the console; the centralized control room is connected with the power center, the centralized control room is provided with an RC12-10 microprocessor, and an instrument panel of a console of the centralized control room is provided with a control switch, an operating handle, an operating knob, an indicator light, two centralized control displays and a working scene monitor.
3. The centralized tension payout system of claim 1, wherein the tailstock unit is configured to mount a wire spool.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610133454.5A CN105591343B (en) | 2016-03-10 | 2016-03-10 | Centralized control type tension paying-off system |
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| CN201610133454.5A CN105591343B (en) | 2016-03-10 | 2016-03-10 | Centralized control type tension paying-off system |
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| CN106837899B (en) * | 2016-12-28 | 2018-10-23 | 国家电网公司 | A kind of hydraulic system Cartridge inserted valve integrated block |
| CN109361170A (en) * | 2018-11-01 | 2019-02-19 | 河南送变电建设有限公司 | A kind of intelligent dragger of collection control |
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