CN109179175A - A kind of coal mine friction type winder head rope cup rope is committed suicide by hanging device - Google Patents
A kind of coal mine friction type winder head rope cup rope is committed suicide by hanging device Download PDFInfo
- Publication number
- CN109179175A CN109179175A CN201811346858.8A CN201811346858A CN109179175A CN 109179175 A CN109179175 A CN 109179175A CN 201811346858 A CN201811346858 A CN 201811346858A CN 109179175 A CN109179175 A CN 109179175A
- Authority
- CN
- China
- Prior art keywords
- support plate
- hydraulic cylinder
- coal mine
- rope
- friction type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B15/00—Main component parts of mining-hoist winding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/02—Installing or exchanging ropes or cables
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Emergency Lowering Means (AREA)
- Actuator (AREA)
Abstract
The application provides a kind of coal mine friction type winder head rope cup rope and commits suicide by hanging device, is related to coal mine friction type winder and throws rope technical field.Including motor, vane pump, hydraulic station, hydraulic cylinder, fixed frame, capel and wedge block；When working condition, fixed frame is fixedly connected with the shell of hydraulic cylinder, and the piston of hydraulic cylinder is resisted against the top of capel, and capel is ejected from wedge block.Construction of the present invention is simple, and needing the work of three people cooperation to be reduced to a people script using hydraulic power can be completed.Time was also shorten to three minutes by original ten minutes, is greatly improved work efficiency, is shortened the repair time, improves safety coefficient, the device have it is easy to carry, it is easy to use, save manpower, the advantages that security performance is high.
Description
Technical field
This application involves coal mine friction type winders to throw rope technical field more particularly to a kind of coal mine friction hoisting prow
Rope cup rope is committed suicide by hanging device.
Background technique
Coal mine friction type winder head rope and hoisting container junction do not have an adjusting rope device, in the course of work in, need into
Row rope skipping processing, adjusts rope process cumbersome, takes time and effort.
In the prior art, in practical lifting process, four hydraulic cylinder for adjusting rope pistons of hoisting container first-rope hinger are found
Extension elongation is not while can reach stroke value, but has the extension elongation of one or several oil cylinder pistons to reach stroke
Value, but the extension elongation of other several oil cylinder pistons has certain surplus still for adjusting.
In order to enable the extension elongation of oil cylinder piston to reach stroke value simultaneously, suspension hydraulic formula hydraulic cylinder for adjusting rope is mostly used to match
Oil pump is suppressed in the tune rope suspension arrangement of the compositions such as wedge shape rope card, cooperation, and it is convenient rapidly to operate.But adjusting the maximum length of rope cannot surpass
The piston stroke in hydraulic cylinder is crossed, otherwise must be just adjusted with wedge shape rope card.Capel is thrown when former cup rope to need with big
Capel can just be launched under blow counts ten with sudden force by hammering into shape, there are many security risks in this course, be flown out when such as hitting
Iron filings hurt sb.'s feelings, due to narrow space, it is bad firmly get rid of hammer, in order to reserve enough working spaces, personnel will stand to hoisting container
Top sides edge, although wearing safety belt, scene can also have very big unknown hidden danger.
Summary of the invention
It commits suicide by hanging device this application provides a kind of coal mine friction type winder head rope cup rope, to solve in the prior art ask
Topic, achievees the purpose that easily to launch capel.
The embodiment of the present invention provides a kind of coal mine friction type winder head rope cup rope and commits suicide by hanging device, including motor, vane pump,
Hydraulic station, hydraulic cylinder, fixed frame, capel and wedge block；
The vane pump is located in the liquid reserve tank of hydraulic station, and vane pump is connected with motor；The liquid reserve tank of hydraulic station passes through defeated
Liquid pipe road is connect with hydraulic cylinder；Liquid-transport pipe-line includes output channel and input channel, and hydraulic station passes through input channel and hydraulic cylinder
Rodless cavity connection, hydraulic station is connected to by output channel with the rod chamber of hydraulic cylinder；Capel is arranged in wedge block, heart
Wirerope is wound on ring；When working condition, fixed frame is fixedly connected with the shell of hydraulic cylinder, and the piston of hydraulic cylinder is resisted against heart
The top of ring ejects capel from wedge block.
Preferably, the fixed frame includes the first support plate and the second support plate disposed in parallel, the first support plate and
It is connected between two support plates by connector；First support plate is equipped with the first through hole adaptable with the piston of hydraulic cylinder, liquid
The piston of cylinder pressure passes through top to the top of capel after first through hole；Second support plate is equipped with the intermediate prominent position with hydraulic cylinder
The second adaptable through-hole is set, the intermediate prominent position of hydraulic cylinder is connected in the second through-hole.
Preferably, it is equipped with connecting hole in first support plate and the second support plate, the connector is inserted into connection
The first support plate is fixedly connected with the second support plate in hole, first support plate, the second support plate and connector besieged city are put
Cavity is set, hydraulic cylinder, which is placed on, to be placed in cavity.
Preferably, the liquid-transport pipe-line is equipped with two-position-five-way solenoid valve.
Preferably, the output channel is equipped with output control ball valve, and input channel is equipped with input control ball valve.
Preferably, second support plate is equipped with the locking machine for hydraulic cylinder to be fixedly connected with the second support plate
Structure.
Preferably, the retaining mechanism is door latch type active grab, and door latch type active grab includes pedestal, Button Block and lock
Button, pedestal are arranged in the side of the second through-hole in the second support plate, and the another of the second through-hole in the second support plate is arranged in Button Block
One end of side, lock is hinged on pedestal, and Button Block is equipped with the clamping groove adaptable with the lock other end.
Preferably, the connector uses half-thread bolt.
Preferably, first support plate and the second support plate are all made of the steel plate with a thickness of 20mm-40mm.
Preferably, improved mat is equipped in second through-hole.
The prior art is compared, the beneficial effects of the present invention are:
The present invention includes motor, vane pump, hydraulic station, hydraulic cylinder, fixed frame, capel and wedge block；When working condition,
Fixed frame is fixedly connected with the shell of hydraulic cylinder, and the piston of hydraulic cylinder is resisted against the top of capel, by capel from wedge block
Middle ejection.Construction of the present invention is simple, and needing the work of three people cooperation to be reduced to a people script using hydraulic power can be completed.
Time was also shorten to three minutes by original ten minutes, is greatly improved work efficiency, is shortened the repair time, improves safety
Coefficient, the device have it is easy to carry, it is easy to use, save manpower, the advantages that security performance is high.
Detailed description of the invention
To be illustrated more clearly that background technique or technical solution of the present invention, below to the prior art or specific embodiment
The attached drawing of middle combined use is briefly described；It should be evident that below in conjunction with the attached drawing side of being only for of specific embodiment
Just understand the embodiment of the present invention, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other drawings based on these drawings；
Fig. 1 is the schematic view of the front view of device provided in an embodiment of the present invention of committing suicide by hanging；
Fig. 2 is the side structure schematic view of device provided in an embodiment of the present invention of committing suicide by hanging；
Fig. 3 is the structural schematic diagram of fixed frame provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the first support plate provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the second support plate provided in an embodiment of the present invention；
Fig. 6 is the axis side structure schematic diagram of retaining mechanism provided in an embodiment of the present invention；
Fig. 7 is the side structure schematic view of retaining mechanism provided in an embodiment of the present invention；
Wherein: 1- motor, 2- vane pump, 3- hydraulic station, 4- hydraulic cylinder, 40- piston, 5- fixed frame, 51- first are supported
Frame, 511- first through hole, the second support frame of 52-, the second through-hole of 521-, 522- improved mat, 6- capel, 7- wedge block, 8-
Output channel, 9- input channel, 91- control ball valve, 10- wirerope, 11- connector, 12- placement cavity, 13- two-position five-way electricity
Magnet valve, 14- pedestal, 15- Button Block, 151- clamping groove, 16- lock.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
Coal mine friction type winder head rope cup rope provided in an embodiment of the present invention is committed suicide by hanging device, including motor 1, vane pump 2,
Hydraulic station 3, hydraulic cylinder 4, fixed frame 5, capel 6 and wedge block 7.
Fig. 1 is the overall structure diagram of device provided in an embodiment of the present invention of committing suicide by hanging, and Fig. 2 is that the embodiment of the present invention provides
Device of committing suicide by hanging side structure schematic view, as depicted in figs. 1 and 2, the vane pump 2 is located in the liquid reserve tank of hydraulic station 3, leaf
Piece pump 2 is connected with motor 1；The liquid reserve tank of hydraulic station 3 is connect by liquid-transport pipe-line with hydraulic cylinder 4.
Liquid-transport pipe-line includes output channel 8 and input channel 9, and hydraulic station 3 is by input channel 9 with hydraulic cylinder 4 without bar
Chamber connection, hydraulic station 3 are connected to by output channel 8 with the rod chamber of hydraulic cylinder 4.
In the present embodiment, the liquid-transport pipe-line is equipped with two-position-five-way solenoid valve 13, and the output channel 8 is equipped with output
Ball valve 81 is controlled, input channel 9 is equipped with input control ball valve 91.
Capel 6 is arranged in wedge block 7, and 7 bottom of wedge block is equipped with and launches mouth, and wirerope 10 is wound on capel 6；It is real
When the working condition of border, fixed frame 5 is fixedly connected with the shell of hydraulic cylinder 4, and the piston 40 of hydraulic cylinder 4 is resisted against the top of capel 6
Portion ejects capel 6 from launching in mouth for wedge block 7.
Fig. 3 is the structural schematic diagram of fixed frame provided in an embodiment of the present invention, as shown in figure 3, the fixed frame 5 includes flat
The first support plate 51 and the second support plate 52 of row setting, pass through connector 11 between the first support plate 51 and the second support plate 52
It is connected, in the present embodiment, using the half-thread bolt of two Φ 20mm × 260mm, connector 11 plays solid the connector 11
Determine the effect of hydraulic cylinder 4.
In the present embodiment, first support plate 51 and the second support plate 52 are all made of with a thickness of the trapezoidal of 20mm-40mm
Steel plate.
Fig. 4 is the structural schematic diagram of the first support plate provided in an embodiment of the present invention, as shown in figure 4, the first support plate 51
Middle part be equipped with the first through hole 511 adaptable with the piston 40 of hydraulic cylinder 4, the piston 40 of hydraulic cylinder 4 passes through first through hole 511
It is pushed up afterwards to the top of capel 6.
Fig. 5 is the structural schematic diagram of the second support plate provided in an embodiment of the present invention, as shown in figure 5, the second support plate 52
Middle part be equipped with the second through-hole 521 being adapted with the intermediate prominent position of hydraulic cylinder 4, the intermediate prominent position card of hydraulic cylinder 4
It connects in the second through-hole 521.
Hydraulic cylinder 4 is worn in the second through-hole 521 in order to prevent, and improved mat is equipped in second through-hole 521
522, improved mat 522 is arranged while increasing the intermediate prominent position of 4 shell of hydraulic cylinder and the connection of the second support plate 52
Tightness.
Connecting hole is equipped in first support plate 51 and the second support plate 52, the connector 11 is inserted into connecting hole
Middle to be fixedly connected with the first support plate 51 with the second support plate 52, connector 11 and the first support plate 51 and the second support plate 52 can
Cavity 12 is placed in dismantling connection, first support plate 51, the second support plate 52 and the besieged city of connector 11, and hydraulic cylinder 4 is placed on
It places in cavity 12, the size for placing cavity 12 can be changed by adjusting connector 11 according to the specific size of hydraulic cylinder 4.
In the present embodiment, second support plate 52 is equipped with the lock for hydraulic cylinder to be fixedly connected with the second support plate
Tight mechanism.
Fig. 6 is the axis side structure schematic diagram of retaining mechanism provided in an embodiment of the present invention；Fig. 7 is that the embodiment of the present invention provides
Retaining mechanism side structure schematic view；As shown in Figure 5-Figure 7, the retaining mechanism is door latch type active grab, door latch type
Active grab includes pedestal 14, Button Block 15 and lock 16, and one of the second through-hole 521 in the second support plate 52 is arranged in pedestal 14
The other side of the second through-hole 521 in the second support plate 52 is arranged in side, Button Block 15, latches 16 one end and is hinged on pedestal 1, detains
Seat 15 is equipped with the clamping groove 151 adaptable with 3 other ends of lock.
The embodiment of the present embodiment are as follows:
In practical work process, push up after the piston 40 of hydraulic cylinder 4 is passed through first through hole 511 first to the top of capel 6
Portion, at this point, adjustment connector 11 is connected to the intermediate prominent position of hydraulic cylinder 4 in second through-hole 521, rotation lock 16,
Lock 16 is snapped fit onto the clamping groove 151 on Button Block 15, the shell of hydraulic cylinder 4 is firmly fixed to by retaining mechanism
In two support plates 52；Then start motor, motor 1 drives vane pump 2 to generate pressure, makes by two-position-five-way solenoid valve 13 hydraulic
3 are stood to 4 fluid injection pressure oil of hydraulic cylinder, so that the stretching of piston 40 of hydraulic cylinder 4 ejects capel 6 from wedge block 7, the dress of committing suicide by hanging
It sets using hydraulic power, needing the work of three people cooperation to be reduced to a people script can be completed.The time of the device committed suicide by hanging
Also it was shorten to three minutes by original ten minutes, greatly improves work efficiency, shorten the repair time, improve safe system
Number, the device have easy to carry, are suitble to use in the cage in mine, easy to use, save manpower, security performance height etc. is excellent
Point.
The device of committing suicide by hanging of coal mine friction type winder head rope cup rope in the embodiment of the present invention is described in detail above.
"upper", "lower", " left side " and " right side " in the present embodiment are the position descriptions in opposite Figure of description.This part is using specific
Principle and implementation of the present invention are described for embodiment, the above embodiments are only used to help understand this hair
Bright core concept, without departing from the principles of the present invention, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, shall fall within the protection scope of the present invention.
Claims (10)
- The device 1. a kind of coal mine friction type winder head rope cup rope is committed suicide by hanging, it is characterised in that:Including motor (1), vane pump (2), hydraulic station (3), hydraulic cylinder (4), fixed frame (5), capel (6) and wedge block (7)；The vane pump (2) is located in the liquid reserve tank of hydraulic station (3), and vane pump (2) is connected with motor (1)；The storage of hydraulic station (3) Liquid case is connect by liquid-transport pipe-line with hydraulic cylinder (4)；Liquid-transport pipe-line includes output channel (8) and input channel (9), hydraulic station (3) it is connected to by input channel (9) with the rodless cavity of hydraulic cylinder (4), hydraulic station (3) passes through output channel (8) and hydraulic cylinder (4) Rod chamber connection；Capel (6) setting is wound with wirerope (10) in wedge block (7) on capel (6)；When working condition, Fixed frame (5) is fixedly connected with the shell of hydraulic cylinder (4), and the piston (40) of hydraulic cylinder (4) is resisted against the top of capel (6), The ejection from wedge block (7) by capel (6).
- The device 2. coal mine friction type winder head rope cup rope according to claim 1 is committed suicide by hanging, it is characterised in that:The fixed frame (5) includes the first support plate (51) disposed in parallel and the second support plate (52), the first support plate (51) And second be connected between support plate (52) by connector (11)；First support plate (51) is equipped with the piston with hydraulic cylinder (4) (40) adaptable first through hole (511), the piston (40) of hydraulic cylinder (4) pass through first through hole (511) and are pushed up afterwards to capel (6) Top；Second support plate (52) is equipped with second through-hole (521) adaptable with the intermediate prominent position of hydraulic cylinder (4), liquid The intermediate prominent position of cylinder pressure (4) is connected in the second through-hole (521).
- The device 3. coal mine friction type winder head rope cup rope according to claim 2 is committed suicide by hanging, it is characterised in that:Connecting hole is equipped on first support plate (51) and the second support plate (52), the connector (11) is inserted into connection The first support plate (51) is fixedly connected with the second support plate (52) in hole, first support plate (51), the second support plate (52) and cavity (12) are placed in connector (11) besieged city, and hydraulic cylinder (4), which is placed on, to be placed in cavity (12).
- The device 4. coal mine friction type winder head rope cup rope according to claim 1 is committed suicide by hanging, it is characterised in that:The liquid-transport pipe-line is equipped with two-position-five-way solenoid valve (13).
- The device 5. coal mine friction type winder head rope cup rope according to claim 1 is committed suicide by hanging, it is characterised in that:The output channel (8) is equipped with output control ball valve (81), and input channel (9) is equipped with input control ball valve (91).
- The device 6. coal mine friction type winder head rope cup rope according to claim 2 is committed suicide by hanging, it is characterised in that:Second support plate (52) is equipped with the retaining mechanism for hydraulic cylinder to be fixedly connected with the second support plate.
- The device 7. coal mine friction type winder head rope cup rope according to claim 6 is committed suicide by hanging, it is characterised in that:The retaining mechanism is door latch type active grab, and door latch type active grab includes pedestal (14), Button Block (15) and lock (16), the side of the second through-hole (521) is arranged on the second support plate (52) in pedestal (14), and Button Block (15) setting is in the second support The other side of second through-hole (521) on plate (52), lock (16) one end be hinged on pedestal (1), Button Block (15) be equipped with Latch the adaptable clamping groove (151) of (3) other end.
- The device 8. coal mine friction type winder head rope cup rope according to claim 2 is committed suicide by hanging, it is characterised in that:The connector (11) uses half-thread bolt.
- The device 9. coal mine friction type winder head rope cup rope according to claim 2 is committed suicide by hanging, it is characterised in that:First support plate (51) and the second support plate (52) are all made of the steel plate with a thickness of 20mm-40mm.
- The device 10. coal mine friction type winder head rope cup rope according to claim 2 is committed suicide by hanging, it is characterised in that:Improved mat (522) are equipped in second through-hole (521).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811346858.8A CN109179175B (en) | 2018-11-13 | 2018-11-13 | First rope ring throwing device of coal mine friction type elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811346858.8A CN109179175B (en) | 2018-11-13 | 2018-11-13 | First rope ring throwing device of coal mine friction type elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109179175A true CN109179175A (en) | 2019-01-11 |
| CN109179175B CN109179175B (en) | 2020-12-11 |
Family
ID=64939627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811346858.8A Active CN109179175B (en) | 2018-11-13 | 2018-11-13 | First rope ring throwing device of coal mine friction type elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109179175B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827711A (en) * | 2020-07-28 | 2020-10-27 | 国网山东省电力公司寿光市供电公司 | Emergency reinforcing device for broken pole of electric pole and using method |
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| CN105151952A (en) * | 2015-08-31 | 2015-12-16 | 南京梅山冶金发展有限公司 | Lifter first-rope height difference judging method |
| CN106044473A (en) * | 2016-06-29 | 2016-10-26 | 昆山苏梯机电科技有限公司 | Elevator balancing system |
| CN205709335U (en) * | 2016-05-05 | 2016-11-23 | 中信重工机械股份有限公司 | A kind of multi-rope friction hoisting machine adjusting rope device |
| CN206395758U (en) * | 2017-01-07 | 2017-08-11 | 李贤明 | A kind of device for being used to adjust rope length |
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- 2018-11-13 CN CN201811346858.8A patent/CN109179175B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11138460A (en) * | 1997-11-12 | 1999-05-25 | Hitachi Building Systems Co Ltd | Bearing driving device of terminal gear of high lift type escalator |
| CN201565766U (en) * | 2009-04-27 | 2010-09-01 | 永城煤电控股集团有限公司 | Quick manufacturer for winch hooking head |
| CN201989801U (en) * | 2011-01-25 | 2011-09-28 | 淮南矿业(集团)有限责任公司 | Safe exploiting and transportation connecting rod applied in mine |
| CN203732305U (en) * | 2013-12-17 | 2014-07-23 | 天津市海华技术开发中心 | Messager striking releasing device |
| CN104724615A (en) * | 2015-01-23 | 2015-06-24 | 中建三局第二建设工程有限责任公司 | Penetrating and winding method of large-diameter variable-amplitude steel wire rope of large moving-arm type tower crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827711A (en) * | 2020-07-28 | 2020-10-27 | 国网山东省电力公司寿光市供电公司 | Emergency reinforcing device for broken pole of electric pole and using method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109179175B (en) | 2020-12-11 |
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