CN106144934A - The method of work of transformer station's interruption maintenance - Google Patents
The method of work of transformer station's interruption maintenance Download PDFInfo
- Publication number
- CN106144934A CN106144934A CN201610581621.2A CN201610581621A CN106144934A CN 106144934 A CN106144934 A CN 106144934A CN 201610581621 A CN201610581621 A CN 201610581621A CN 106144934 A CN106144934 A CN 106144934A
- Authority
- CN
- China
- Prior art keywords
- disconnecting switch
- power transmission
- transmission shaft
- transformer station
- supporting frame
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/12—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses the method for work of a kind of transformer station interruption maintenance, including base, power transmission shaft, ratchet, the supporting frame being arranged on base and the ratchet being arranged on supporting frame, described power transmission shaft is connected with supporting frame by cover for seat, described ratchet is flexibly connected with power transmission shaft, described power transmission shaft is provided with position limiting structure and friction component, one end of described power transmission shaft is provided with whim, the transverse arm of support frame as described above body be provided with for rope through fixed pulley, the rope free end on described whim is provided with hook.This device can quickly realize the accurate lifting of weight, and lifting required time is short, and overhaul efficiency is high, bidirectional self-locking in mechanical transmission course, and easy to operate, safe and reliable.
Description
Technical field
The present invention relates to transformer substation overhauling device ground technical field, be specifically related to the work side of a kind of transformer station interruption maintenance
Method.
Background technology
In transformer station, along with equipment longtime running and external influence, equipment fault defect is increasing, for guaranteeing electricity
Net reliability service, the work being replaced old equipment becomes as homely food.But, either used equipment or new equipment
The heaviest, neighbouring device interval is narrow, and prior art uses the mode of crane lifting and scaffolding carrying to carry out equipment
Change and install, but, transformer station's narrow space, crane is difficult to pass through, and setting up insulation scaffold wastes time and energy, and only at compartment
Feasible away from big transformer station.Secondly transformer station is when main equipments such as zinc oxide surge arresters, it is common that by traditional lifting vehicle
Carry out, but owing to the lifting vehicle channel requirements to travelling is higher, and transformer station has a lot of equipment mostly, its passage is narrower,
Therefore lifting vehicle arrival operation field is more difficult；Additionally transformer station place is also required that higher by lifting vehicle, and lifting vehicle arrives
After reaching operation field, place be there is also bigger destruction；And owing to lifting vehicle volume is big, in satisfied lifting vehicle gabarit
In the case of safe distance between live part, vehicle operation space is less, it is difficult to ensure its job safety.
To this end, the patent of invention of Publication No. 104876133A proposes a kind of transformer station hanging apparatus, this device
Including supporter, the bottom of supporter is provided with base, and base connects the grid support in transformer station, and the top of supporter is provided with
Boom arm sections body, boom arm sections body connects and has fixed pulley and lifting rope, and lifting rope connects movable pulley, and movable pulley is provided with suspension hook,
Lifting rope walks around movable pulley and fixed pulley successively.And for example the open a kind of converting station electric power equipment of CN201310139206.8 plays lifting
Putting, including a seat pipe, the periphery of seat pipe is fixedly connected with anchor ear, the upper port of seat pipe is inserted between one and seat pipe inwall
The right-angle elbow pipe that gap coordinates, the horizontal segment of right-angle elbow pipe arranges one for the suspension ring connecting pulley, the vertical section of right-angle elbow pipe
It is provided with an annulus limiting stand equal with seat pipe external diameter, during use, used equipment or new equipment is placed on suspension hook, then uses
Pulling lifting rope, used equipment moves upward under external force and realizes changing, and new equipment moves downward weight under the effect of external force
Newly installed.Although this device uses pulley principle, during operation, ratio is relatively labor-saving, but owing to the weight of equipment is big, still needs to during operation
Expend a large amount of strength, leverage the replacing efficiency of equipment.Even more important: existing locking device is by ratchet and spine
Pawl forms, and in hand winch, ratchet mechanism is conventional in case non-return turn.Ratchet self-locking mechanism in lifting appliance has solid more at present
The ratchet being contained on winch main shaft and the ratchet composition being contained on rocking bar, it is achieved one-way brake during heavy lift or
Have a rest.And when weight is slightly downgraded or during descending at slow speed by needs, then generally require and first exert a force to heavy lift direction pre-add, make spine
Pawl departs from the ratchet of ratchet, then is lifted by ratchet, apply lifting force with overcome article gravity situation under slowly reduce force,
Weight is made slowly to decline.In the case, promote the force amplitude unbalance with article gravity and be difficult to hold, inevitably go out
The fluctuation of existing weight decrease speed, also will cause the suddenly big or suddenly small of gravity, thus increases considerably the operation easier of operating personnel,
Even causing operation out of control, weight hurtles down, and leads to security incident.This problem the most not yet obtains ideal solution
Certainly.
Summary of the invention
Problem to be solved by this invention is the above-mentioned deficiency overcoming prior art, it is provided that a kind of transformer station interruption maintenance
Method of work, this device can quickly realize the accurate lifting of weight, and lifting required time is short, and overhaul efficiency is high, machine driving
During bidirectional self-locking, and easy to operate, safe and reliable.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of transformer station interruption maintenance device, bag
Include base, power transmission shaft, ratchet, the supporting frame being arranged on base and the ratchet being arranged on supporting frame, described power transmission shaft
Being connected with supporting frame by cover for seat, described ratchet is flexibly connected with power transmission shaft, and described power transmission shaft is provided with position limiting structure and rubs
Brush assembly, one end of described power transmission shaft is provided with whim, the transverse arm of support frame as described above body be provided with for rope through fixed pulley,
Rope free end on described whim is provided with hook, and described base has walking mechanism, on described transverse arm and supporting frame
It is mounted on illuminating lamp.
Described illuminating lamp connects Digiplex.
Under described hook, connection has magnechuck.
Support frame as described above body is connected with base rotation.
Described base is provided with driving motor, drives the gear that drives of motor to nibble with the gear being sleeved on supporting frame
Close.
Described friction component includes being sleeved on actuating swivel nut the most threaded on power transmission shaft, is arranged on power transmission shaft one end
Prevent the clamp nut that actuating swivel nut exits and the friction damper being sleeved on power transmission shaft.
The quantity of described friction damper is 2, is separately positioned on the position, both sides of described ratchet.
Described actuating swivel nut is connected with described power transmission shaft by multiple thread.
Described clamp nut is connected with described power transmission shaft by fine thread.
Described clamp nut side arranges groove.
It is composed of the following components by weight for described friction damper: activated carbon 5～10 parts；Brown Alundum cashew shell oil
Phenol-formaldehyde resin modified 8～12 parts；Diamond particles 15～25 parts；Acrylonitrile-butadiene rubber powder 15～25 parts；Polypropylene fibre 10～15
Part；Boron nitride 6～10 parts.
The method of work of a kind of transformer station interruption maintenance, comprises the following steps:
1) after the disconnecting switch of transformer station is damaged, device is moved in transformer station, drive motor work to drive supporting frame
Transverse arm move to above disconnecting switch；
2) being stuck in disconnecting switch by hook, pulled down by disconnecting switch hold-doun nut, rotating clockwise actuating swivel nut will keep apart
Slinging in pass, drives motor work that transverse arm is moved to side, and fine setting actuating swivel nut counterclockwise, now disconnecting switch is slowly to moving down
Dynamic；
3) disconnecting switch keeped in repair is hung on hook, rotate clockwise actuating swivel nut and disconnecting switch is sling make disconnecting switch
Top at disconnecting switch base to be installed；Motor work is driven to drive the disconnecting switch under supporting frame to be positioned at isolation to be installed
The surface of switch pedestal, the most counterclockwise fine setting actuating swivel nut, now disconnecting switch slowly moves down, it is simple to operating personnel
The position of fine setting disconnecting switch, the installing hole making disconnecting switch is corresponding with the base screw of disconnecting switch.
The invention has the beneficial effects as follows:
1) the bidirectional self-locking mechanism of the present invention uses ratchet-friction self-locking structure, can not only reliably ensure good rotating shaft
Self-locking counterclockwise, and it is capable of the self-locking that turns clockwise, still can implement when self-locking counterclockwise to rotate counterclockwise
Actuating, only need to be controlled by the actuating of actuating nut, just can realize the rotation of either direction and the self-locking of optional position and unblock,
It is not required to special solution latching operation, operates random and convenient and swift.
2) present invention increase on the basis of conventional ratchet self-locking structure is provided with friction component, both can realize moment of torsion and pass
Dynamic bidirectional self-locking, can improve again the safety coefficient of movement system, thus have simple in construction, simple for production, with low cost etc.
Advantage.
3) present invention is by friction damper, ratchet and the regulation of actuating swivel nut axial location and restriction, it is achieved friction resistance
The regulation of Buddhist nun's power size, and operated, simultaneously by the backwards rotation realized under self-locking state of placing restrictions on of actuating swivel nut axial location
Can reliably ensure the safety of actuating operation under load condition.
4) present configuration is the smallest and the most exquisite, it is simple to operation in complicated transformer station, changes disconnecting switch, uses traditional
Device, dismantles and installs laborious, and install inaccuracy, and alignment error is big, generally requires power failure and could change for 4 hours
Finish；And use assembly of the invention to change disconnecting switch and only need 40 minutes.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment one
As it is shown in figure 1, a kind of transformer station interruption maintenance device, including base 19, power transmission shaft 1, ratchet 6, it is arranged on base 19
Supporting frame 2 and the ratchet 8 that is arranged on supporting frame 2, described power transmission shaft 1 is connected with supporting frame 2 by cover for seat 3, institute
Stating ratchet 6 to be flexibly connected with power transmission shaft, described power transmission shaft 1 is provided with position limiting structure 1-1 and friction component, described power transmission shaft 1
One end is provided with whim 12, the transverse arm of support frame as described above body 2 be provided with for rope through fixed pulley 12, on described whim
Rope 14 free end be provided with hook 13.Support frame as described above body is rotated even by the bearing 18 being sleeved on supporting frame with base
Connecing, described base 19 is provided with driving motor 17, and drive motor drives gear 16 and the gear 15 being sleeved on supporting frame
Engagement, it is simple to adjust the angle of transverse arm.Described friction component includes being sleeved on actuating swivel nut the most threaded on power transmission shaft
5, the clamp nut 7 that power transmission shaft 1 one end prevents actuating swivel nut from exiting and the friction damper 4 being sleeved on power transmission shaft it are arranged on.
Described base has walking mechanism, and mobile device is convenient and swift.Ratchet 8 can be arranged on supporting frame 2 by rotating shaft 10,
Ratchet 8 engages with ratchet 6, to realize the braking of ratchet 6.Power transmission shaft 1 is connected with supporting frame 2 by cover for seat 3, and cover for seat 3 is permissible
It it is the sleeve type structure being welded to connect with supporting frame 2；Can also be bearing block, install with supporting frame 2 and be connected, power transmission shaft 1
Installed with bearing block by thrust bearing 11 and be connected, actuating more light and flexible.Ratchet 6 is flexibly connected with power transmission shaft 1, can pass
On moving axis 1 freely rotatable.Power transmission shaft 1 is provided with position limiting structure 1-1 and friction component, plays spacing when power transmission shaft moves right
Effect, wherein, described position limiting structure 1-1 is arranged on the load side of described cover for seat 3, is used for preventing power transmission shaft 1 to drive end play.
Position limiting structure 1-1 can be to be integrally disposed upon the step on power transmission shaft 1 or flange, it is also possible to is to be installed on biography by radial direction through hole
Position-limitting pin on moving axis, the most also can install spacing pad additional in the thrust side of position-limitting pin.Described friction component includes actuating spiral shell
Set 5, clamp nut 7 and friction damper 4, wherein friction damper 4 can be cannula-like or wheel plate-like, sets according to requirement of strength
Putting, wiping damping piece 4 should be pressed close to described ratchet 6 and install.Actuating swivel nut 5 and clamp nut 7 pass sequentially through and are threadably mounted at power transmission shaft 1
Input, the internal diameter of clamp nut 7 should be less than the internal diameter of actuating swivel nut 5, in order to is respectively mounted.Clamp nut plays and holds out against
The effect of actuating swivel nut, is prevented actuating swivel nut from loosening, actuating swivel nut 5 can install hands 9, the most also can be connected by driving member
Actuating unit, described transverse arm and supporting frame are mounted on illuminating lamp, and illumination is without dead angle, and described illuminating lamp connects wireless remote
Control device, controls to open conveniently, and illuminating lamp 20 may be installed on electric platform, and electric platform is arranged on support body, by electronic cloud
The angle of platform adjusting illuminating lamp, meets lighting demand；Under described hook, connection has magnechuck, it is simple to regulation adsorption site, it is simple to
Regulation suspended object balance.
The method of work of a kind of transformer station interruption maintenance, comprises the following steps:
1) after the disconnecting switch of transformer station is damaged, device is moved in transformer station, drive motor work to drive supporting frame
Transverse arm move to above disconnecting switch；
2) being stuck in disconnecting switch by hook, pulled down by disconnecting switch hold-doun nut, rotating clockwise actuating swivel nut will keep apart
Slinging in pass, drives motor work that transverse arm is moved to side, and fine setting actuating swivel nut counterclockwise, now disconnecting switch is slowly to moving down
Dynamic；
3) disconnecting switch keeped in repair is hung on hook, rotate clockwise actuating swivel nut and disconnecting switch is sling make disconnecting switch
Top at disconnecting switch base to be installed；Motor work is driven to drive supporting frame to rotate, to be installed keeps apart
Closing the surface being positioned at disconnecting switch base to be installed, the most counterclockwise fine setting actuating swivel nut, now disconnecting switch is the most downward
Mobile, it is simple to operating personnel finely tunes the position of disconnecting switch, makes the installing hole of disconnecting switch and the base screw phase of disconnecting switch
Corresponding.
When the present invention uses, 9 or start other actuating unit by hands, make actuating swivel nut 5 be rotated clockwise, behaviour
Movable snail sleeve 5, by after ratchet 6, friction damper 4 and cover for seat 3 jam-packed, drives whim 12 and ratchet 6 to rotate, it is achieved weight
Promote.Heavy lift put in place or during need interval time, the operation of actuating swivel nut 5, the now ratchet of ratchet 6 can be stopped at any time
Engage with described ratchet 8 and can not rotate, due to the rubbing action of friction damper 4, the gravity of weight can be overcome to make to pass
Moving axis 1 stops operating, and i.e. realizes self-locking.Clamp nut can play the effect compressing actuating swivel nut, prevents from loosening, needs to make weight
During decline, first clamp nut is loosened, can directly rotate actuating swivel nut 5, actuating swivel nut 5 side counterclockwise under aforementioned self-locking state
The trend moved by screw thread the most oriented clamp nut 7 one end in time rotating, actuating swivel nut fine motion, now the gravity of weight is bigger
In frictional force, now can not move axially due to the stop of clamp nut 7, power transmission shaft 1 can only be driven to overcome friction damper 4
Frictional resistance carry out rotate in an anti-clockwise direction, it is achieved the slow decline of weight.During weight declines, can stop at any time
The operation of actuating swivel nut 5, i.e. rotates clockwise actuating swivel nut, thus pressing friction damping piece, the rubbing action of friction damper 4
The continuation stoping weight declines, and i.e. realizes the reverse locking of power transmission shaft 1.When power transmission shaft 1 is carried out counter-rotating actuating, due to
The gravity of weight reduces effect with the balance of friction damper 4 frictional force, and actuating is the most laborsaving, and can stop at any time and oneself
Lock, which thereby enhances the safety of weight descending operation.
Embodiment two
As further improving, the quantity of described friction damper is 2, and two friction damper 4 are separately positioned on described spine
The position, both sides of wheel, can strengthen self-locking moment of torsion, the friction damper 4 using external diameter to be 60mm, and maximum self-locking moment of torsion can reach
To more than 1000kg, when needs increase load torque, as long as the effective cross section that appropriateness strengthens friction damper 4 is amassed.
Embodiment three
Described actuating swivel nut 5 can be connected with described power transmission shaft 1 by multiple thread, it is simple to increases the helical pitch connecting screw thread, strengthens
The transmission of actuating swivel nut 5 driving torque, counter-rotating actuating is sensitiveer.Described clamp nut 7 preferably by fine thread with
Described power transmission shaft 1 connects, and can increase the axial pressing force of clamp nut 7.
Embodiment four
Described clamp nut 7 side can arrange groove, it is simple to the junction surface pair of multiple thread and fine thread crossed by clamp nut 7
Actuating swivel nut 5 is implemented to compress, it is to avoid occur compressing room.
Embodiment five with the difference of embodiment four is: it is composed of the following components by weight for described friction damper:
Activated carbon 5 parts；Brown Alundum cashew nut oil modified alkyd resin 8 parts；Diamond particles 15 parts；Acrylonitrile-butadiene rubber powder 15 parts；Polypropylene
Fiber 10 parts；Boron nitride 6 parts.
Embodiment six with the difference of embodiment four is: it is composed of the following components by weight for described friction damper:
Activated carbon 10 parts；Brown Alundum cashew nut oil modified alkyd resin 12 parts；Diamond particles 25 parts；Acrylonitrile-butadiene rubber powder 25 parts；Poly-third
Alkene fiber 15 parts；Boron nitride 10 parts.
Embodiment seven with the difference of embodiment four is: it is composed of the following components by weight for described friction damper:
Activated carbon 8 parts；Brown Alundum cashew nut oil modified alkyd resin 10 parts；Diamond particles 20 parts；Acrylonitrile-butadiene rubber powder 20 parts；Poly-third
Alkene fiber 12 parts；Boron nitride 8 parts；Diamond uses diamond synthesis low price, and hardness is high.
Embodiment eight with the difference of embodiment seven is: embodiment eight uses friction material disclosed in CN201480061713.7
Material；Test through inventor, see table.
Above presently preferred embodiments of the present invention is described, so that principles and applications to be described, but should manage
Solving, the present invention otherwise can realize on the basis of without departing from these principles.
Claims (9)
1. transformer station's interruption maintenance device, it is characterised in that: include base, power transmission shaft, ratchet, be arranged on base
Support body and the ratchet being arranged on supporting frame, described power transmission shaft is connected with supporting frame by cover for seat, described ratchet and biography
Moving axis is flexibly connected, and described power transmission shaft is provided with position limiting structure and friction component, and one end of described power transmission shaft is provided with whim,
The transverse arm of support frame as described above body be provided with for rope through fixed pulley, the rope free end on described whim is provided with hook, institute
Stating supporting frame to be connected with base rotation, described base has walking mechanism, and described transverse arm and supporting frame are mounted on
Illuminating lamp.
2. transformer station as claimed in claim 1 interruption maintenance device, it is characterised in that: described base is provided with driving motor,
The gear that drives driving motor engages with the gear being sleeved on supporting frame.
3. transformer station as claimed in claim 2 interruption maintenance device, it is characterised in that: described friction component includes being sleeved on biography
Actuating swivel nut the most threaded on moving axis, it is arranged on clamp nut and suit that power transmission shaft one end prevents actuating swivel nut from exiting
Friction damper on power transmission shaft.
4. transformer station as claimed in claim 3 interruption maintenance device, it is characterised in that: the quantity of described friction damper is 2
Individual, it is separately positioned on the position, both sides of described ratchet.
5. transformer station as claimed in claim 4 interruption maintenance device, it is characterised in that: described actuating swivel nut passes through multiple thread
It is connected with described power transmission shaft.
6. transformer station as claimed in claim 5 interruption maintenance device, it is characterised in that: described clamp nut passes through fine thread
It is connected with described power transmission shaft.
7. transformer station as claimed in claim 6 interruption maintenance device, it is characterised in that: described clamp nut side arranges recessed
Groove.
8. transformer station as claimed in claim 7 interruption maintenance device, it is characterised in that: described friction damper is by weight
It is composed of the following components: activated carbon 5～10 parts；Brown Alundum cashew nut oil modified alkyd resin 8～12 parts；Diamond particles 15
～25 parts；Acrylonitrile-butadiene rubber powder 15～25 parts；Polypropylene fibre 10～15 parts；Boron nitride 6～10 parts.
9. the method for work of a transformer station as claimed in claim 7 interruption maintenance device, it is characterised in that: include following step
Rapid:
1) after the disconnecting switch of transformer station is damaged, device is moved in transformer station, drive motor work to drive supporting frame
Transverse arm move to above disconnecting switch；
2) being stuck in disconnecting switch by hook, pulled down by disconnecting switch hold-doun nut, rotating clockwise actuating swivel nut will keep apart
Slinging in pass, drives motor work that transverse arm is moved to side, and fine setting actuating swivel nut counterclockwise, now disconnecting switch is slowly to moving down
Dynamic；
3) disconnecting switch keeped in repair is hung on hook, rotate clockwise actuating swivel nut and disconnecting switch is sling make disconnecting switch
Top at disconnecting switch base to be installed；Motor work is driven to drive the disconnecting switch under supporting frame to be positioned at isolation to be installed
The surface of switch pedestal, the most counterclockwise fine setting actuating swivel nut, now disconnecting switch slowly moves down, it is simple to operating personnel
The position of fine setting disconnecting switch, the installing hole making disconnecting switch is corresponding with the base screw of disconnecting switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581621.2A CN106144934A (en) | 2016-07-22 | 2016-07-22 | The method of work of transformer station's interruption maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581621.2A CN106144934A (en) | 2016-07-22 | 2016-07-22 | The method of work of transformer station's interruption maintenance |
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| Publication Number | Publication Date |
|---|---|
| CN106144934A true CN106144934A (en) | 2016-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610581621.2A Pending CN106144934A (en) | 2016-07-22 | 2016-07-22 | The method of work of transformer station's interruption maintenance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109132248A (en) * | 2018-09-27 | 2019-01-04 | 南京金陵化工厂有限责任公司 | A kind of jumbo bag for calcium zinc stabilizer production feeds intake arch breaking apparatus |
| WO2020133458A1 (en) * | 2018-12-29 | 2020-07-02 | 鹤壁天海电子信息系统有限公司 | Bidirectional self-locking device and antenna lifting rod |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4022429A (en) * | 1975-03-13 | 1977-05-10 | Daido Kiko Co., Ltd. | Lifting apparatus |
| CN201010472Y (en) * | 2007-02-25 | 2008-01-23 | 陈紫刚 | Elevator |
| CN101508404A (en) * | 2009-02-24 | 2009-08-19 | 宁波力富特牵引机制造有限公司 | Electric lifting device |
| CN104291224A (en) * | 2014-09-24 | 2015-01-21 | 国家电网公司 | Lifting double-locking hook rotation type mounting mechanism for electromechanical equipment in substation |
-
2016
- 2016-07-22 CN CN201610581621.2A patent/CN106144934A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4022429A (en) * | 1975-03-13 | 1977-05-10 | Daido Kiko Co., Ltd. | Lifting apparatus |
| CN201010472Y (en) * | 2007-02-25 | 2008-01-23 | 陈紫刚 | Elevator |
| CN101508404A (en) * | 2009-02-24 | 2009-08-19 | 宁波力富特牵引机制造有限公司 | Electric lifting device |
| CN104291224A (en) * | 2014-09-24 | 2015-01-21 | 国家电网公司 | Lifting double-locking hook rotation type mounting mechanism for electromechanical equipment in substation |
Non-Patent Citations (1)
| Title |
|---|
| 陈霞等: "长石粉对酚醛树脂基摩擦材料性能的影响", 《工程塑料应用》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109132248A (en) * | 2018-09-27 | 2019-01-04 | 南京金陵化工厂有限责任公司 | A kind of jumbo bag for calcium zinc stabilizer production feeds intake arch breaking apparatus |
| WO2020133458A1 (en) * | 2018-12-29 | 2020-07-02 | 鹤壁天海电子信息系统有限公司 | Bidirectional self-locking device and antenna lifting rod |
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Application publication date: 20161123 |