CN107240893A - A kind of cable puller suitable for out-of-flatness region - Google Patents
A kind of cable puller suitable for out-of-flatness region Download PDFInfo
- Publication number
- CN107240893A CN107240893A CN201710659233.6A CN201710659233A CN107240893A CN 107240893 A CN107240893 A CN 107240893A CN 201710659233 A CN201710659233 A CN 201710659233A CN 107240893 A CN107240893 A CN 107240893A
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- China
- Prior art keywords
- helical gear
- cable
- turbine
- transmission mechanism
- gear
- 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.)
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Classifications
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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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Abstract
The invention discloses a kind of cable puller suitable for out-of-flatness region, two holders clamp a cable respectively；The power of motor is transported on two holders by the second transmission mechanism and the first transmission mechanism, and two holders drive cable movement；Turbine and runner are arranged oppositely in liquid case, and input shaft one end connection turbine, other end connection motor output end；Output shaft one end connects runner, and the other end connects the first transmission mechanism；Through hole through turbine is set on turbine；First helical gear wheel shaft is connected to holder and exports power, and the 5th helical gear is snapped at side gear, and the 5th helical gear wheel shaft is connected to output shaft and receives power.A kind of cable puller suitable for out-of-flatness region of the invention, cooperated, realized by mechanical mechanism to the reduction of speed for the continuous two-stage of cable for receiving resistance, so as to reduce the tension force on cable by the first transmission mechanism and the second transmission mechanism, Electrical Safety is improved, and reliability is high.
Description
Technical field
The present invention relates to power engineering field, and in particular to a kind of cable puller suitable for out-of-flatness region.
Background technology
Power cable is the cable for transmitting and distributing electric energy, and power cable is usually used in Urban Underground power network, power station
Lead line, the extra large submarine transmission line of industrial and mining enterprises' in-line power and mistake river.In power circuit, cable proportion just gradually increases
Plus.Power cable is to the cable product for transmitting and distributing high-power power, including 1- in the basic routing line of power system
500KV and any of the above voltage class, the power cable of various insulation.The use of power cable has over one hundred year calendar so far
History.1879, American inventor T.A. Edison wrapped jute on copper rod and penetrated in iron pipe, is subsequently filled pitch and mixes
Cable is made in compound.This cable laying in New York, has been started underground transmission by him.Next year, British Ka Lunde inventions pitch leaching
Stain paper insulation power cable.1889, British S.Z. Ferranti, Sebastian Ziani des laid 10 kilovolts of oil immersions between London and the special Ford of moral
Paper insulated cable.1908, Britain built up 20 kv cable nets.Power cable obtains increasingly wider application., Germany in 1911
60 kilovolts of high-tension cables are laid into, have started the development of high-tension cable.1913, German M. Huo Xishitaite were developed into split-phase
Shielded cable, improves the distribution of cable internal electric field, eliminates the positive shearing stress of insulating surface, developing as power cable
Milestone.Nineteen fifty-two, Sweden has laid 380 kilovolts of extra-high-tension cables in northern power plant, realizes the application of extra-high-tension cable.
1100 kilovolts, 1200 kilovolts of extra-high voltage electric power cable has been made to the eighties.
With the development of urban planning, substantial amounts of cable laying is converted to embedded underground from overhead form.Cable
Laid in embedded underground, it is necessary in default cable shaft.Because the electrical equipment in cable shaft is numerous so that two cables
, can be by different resistances, when a cable is increased by resistance simultaneously in delivered downhole, cable stretch becomes big, causes
Cable insulation damage layer, threatens Electrical Safety.
The content of the invention
The technical problems to be solved by the invention be two cables simultaneously in delivered downhole, can by different resistances,
When a cable is increased by resistance, cable stretch becomes big, causes cable insulation damage layer, threatens Electrical Safety, and purpose exists
In providing a kind of cable puller suitable for out-of-flatness region, solve the above problems.
The present invention is achieved through the following technical solutions：
A kind of cable puller suitable for out-of-flatness region, including two holders, the first transmission mechanism, the second transmissions
Mechanism and motor；Described two holders be arranged in parallel, and two holders clamp a cable respectively；The motor, second
Transmission mechanism and the first transmission mechanism are sequentially connected, and the power of motor is transported to by the second transmission mechanism and the first transmission mechanism
On two holders, described two holders drive cable movement；Second transmission mechanism includes liquid case, turbine, through hole, defeated
Enter axle, runner and output shaft；Liquid is set in the liquid case；The turbine and runner are arranged oppositely in liquid case, and input shaft
One end connects turbine, other end connection motor output end；Described output shaft one end connects runner, and the other end connects the first driver
Structure；Through hole through turbine is set on the turbine；First transmission mechanism includes the first helical gear, the second helical gear, the
Three helical gears, the 4th helical gear, the 5th helical gear, side gear and two supports；First helical gear, the second helical gear,
Three helical gears and the 4th helical gear are engaged successively, and the 4th helical gear and the occlusion of the first helical gear；Described first helical gear wheel
Axle is connected to holder and exports power, and the 3rd helical gear wheel shaft is connected to another holder and exports power；It is described
Two supports are arranged on side gear, and the second helical gear wheel shaft is movably set in an one end of the support away from side gear,
4th helical gear wheel shaft is movably set in the one end of another support away from side gear；Described two supports are arranged at side gear
The end points of upper one end is conllinear with the axle center of side gear；5th helical gear is snapped at side gear, and the 5th helical gear wheel shaft
It is connected to output shaft and receives power.
In the prior art, because the electrical equipment in cable shaft is numerous so that two cables are simultaneously in delivered downhole, meeting
By different resistances, when a cable is increased by resistance, cable stretch becomes big, causes cable insulation damage layer, threatens
Electrical Safety.When the present invention is applied, motor conveys power by the first transmission mechanism and the second transmission mechanism to two holders,
When normal operation, motor drives turbine rotation by input shaft, and turbine drives the liquid flowing in liquid case, so that liquid drives
Runner is rotated, output shaft concomitant rotation；The 5th helical gear is rotated immediately, and drives side gear to rotate, two on side gear branch
Frame rotates and drives the first helical gear and the rotation of the 3rd helical gear, so as to export power, cable movement to two holders；Due to
During proper motion, the resistance that cable is subject on two holders is identical, so the first helical gear and the 3rd helical teeth wheel speed are identical.
When the cable for having side is increased by resistance, the second helical gear and the 4th helical gear start rotation, so that the 5th helical teeth
The rotating speed of wheel conveying changes on the first helical gear and the 3rd helical gear, so as to reduce the motion speed of resistance increase side cable
Degree, it is ensured that cable stretch will not be excessive, and cable insulation is survivable, has ensured Electrical Safety；The resistance being subject to when cable
When excessive, turbine drives the liquid flowing in liquid case, and runner increases due to resistance, and the kinetic energy of the liquid in liquid case will not be complete
It is delivered on runner, but is returned by through hole at turbine, so that the speed of service of cable on two holders is reduced, so as to enter
One step reduces the tension force on cable.First transmission mechanism and the second transmission mechanism are respectively as two-stage reduction of speed, it is ensured that cable
On tension force will not be excessive.Simultaneously because the reliability of control panel depends on life-span most short electric elements on control panel,
So the reliability of control panel is nothing like mechanical structure, this is allowed in cable transfer, and the reliability of mechanical structure is more
Height, the probability of cable bad is lower.The present invention is cooperated by the first transmission mechanism and the second transmission mechanism, is realized and is passed through
Mechanical mechanism, so as to reduce the tension force on cable, improves Electrical Safety to the reduction of speed for the continuous two-stage of cable for receiving resistance,
And reliability is high.
Further, the liquid set in the liquid case uses machine oil.
When the present invention is applied, because the compression ratio of machine oil is very low, so setting machine oil in liquid case, it is to avoid power output
Waste.
Further, the holder includes driving wheel, the first crawler belt, the first driven pulley, the second driven pulley, the second crawler belt
With the 3rd driven pulley；First crawler belt is arranged at the outer rim of driving wheel and the first driven pulley；Second crawler belt is arranged at
Two driven pulleys and the 3rd driven pulley；The driving wheel is connected to the first transmission mechanism and receives power.
When the present invention is applied, by setting said apparatus so that cable can be clamped part held tight.
Further, first helical gear, the second helical gear, the 3rd helical gear, the 4th helical gear and the 5th helical gear
Using 42CrMo steel.
Further, the blade of the turbine uses 20cr steel.
Further, the diameter of the through hole set on the turbine uses the 10~15% of turbine diameter.
When the present invention is applied, inventor has found, when the diameter of through hole uses the 10~15% of turbine diameter, you can to have
The power for avoiding runner from exporting of effect is excessive, and runner rotating speed can also be avoided too low.
Further, the height of the flabellum of the runner uses the 15~20% of runner diameter.
When the present invention is applied, the height of the flabellum of runner uses the 15~20% of runner diameter, so that runner is to liquid
The flowing of body is more sensitive, improves the sensitivity of whole equipment.
Further, the blade of turbine uses the 10~15% of turbine diameter.
When the present invention is applied, the blade of turbine uses the 10~15% of turbine diameter, so that driving liquid in turbine
During rotation, the energy transmission effect to liquid is more obvious, improves the sensitivity of whole equipment.
Further, described two supports use cast iron.
Further, described two supports are by being welded to connect in the side of side gear.
The present invention compared with prior art, has the following advantages and advantages：
1st, a kind of cable puller suitable for out-of-flatness region of the invention, passes through the first transmission mechanism and the second driver
Structure cooperates, and realizes by mechanical mechanism to the reduction of speed for the continuous two-stage of cable for receiving resistance, so as to reduce on cable
Tension force, improve Electrical Safety, and reliability is high；
2nd, a kind of cable puller suitable for out-of-flatness region of the invention, you can effectively to avoid the dynamic of runner output
Power is excessive, and runner rotating speed can also be avoided too low；
3rd, a kind of cable puller suitable for out-of-flatness region of the invention so that flowing of the runner to liquid is quicker
Sense, improves the sensitivity of whole equipment.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is holder structural representation of the present invention；
Fig. 3 is the first transmission mechanism structural representation of the invention；
Fig. 4 is the second transmission mechanism structural representation of the invention.
Mark and corresponding parts title in accompanying drawing：
1- cables, 2- holders, the transmission mechanisms of 3- first, the transmission mechanisms of 4- second, 5- motors, 21- driving wheels, 22-
One crawler belt, the driven pulleys of 23- first, the driven pulleys of 24- second, the crawler belts of 25- second, the driven pulleys of 26- the 3rd, the helical gears of 31- first,
The helical gears of 32- second, the helical gears of 33- the 3rd, the helical gears of 34- the 4th, the helical gears of 35- the 5th, 36- side gears, 37- supports, 41-
Liquid case, 42- turbines, 43- through holes, 44- input shafts, 45- runners, 46- output shafts.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make
For limitation of the invention.
Embodiment 1
It is shown as shown in Figure 1, Figure 3 and Figure 4, a kind of cable puller suitable for out-of-flatness region of the invention, including two folders
Gripping member 2, the first transmission mechanism 3, the second transmission mechanism 4 and motor 5；Described two holders 2 be arranged in parallel, and two holders
2 clamp a cable 1 respectively；The motor 5, the second transmission mechanism 4 and the first transmission mechanism 3 are sequentially connected, and the second transmission
The power of motor 5 is transported on two holders 2 by the transmission mechanism 3 of mechanism 4 and first, and described two holders 2 drive cable
Motion；Second transmission mechanism 4 includes liquid case 41, turbine 42, through hole 43, input shaft 44, runner 45 and output shaft 46；It is described
Liquid is set in liquid case 41；The turbine 42 and runner 45 are arranged oppositely in liquid case 41, and the one end of input shaft 44 connection turbine
42, the other end connection output end of motor 5；Described one end of output shaft 46 connects runner 45, and the other end connects the first transmission mechanism 3；
Through hole 43 through turbine 42 is set on the turbine 42；First transmission mechanism 3 includes the first helical gear 31, the second helical teeth
Take turns the 32, the 3rd helical gear 33, the 4th helical gear 34, the 5th helical gear 35, side gear 36 and two supports 37；First helical teeth
The 31, second helical gear 32 of wheel, the 3rd helical gear 33 and the 4th helical gear 34 are engaged successively, and the 4th helical gear 34 and the first helical teeth
Wheel 31 is engaged；The wheel shaft of first helical gear 31 is connected to holder 2 and exports power, and the wheel shaft of the 3rd helical gear 33 connects
It is connected to another holder 2 and exports power；Described two supports 37 are arranged on side gear 36, and the wheel of the second helical gear 32
Axle is movably set in an one end of the support 37 away from side gear 36, and the wheel shaft of the 4th helical gear 34 is movably set in another branch
The one end of frame 37 away from side gear 36；Described two supports 37 are arranged at the axle of the end points of one end and side gear 36 on side gear 36
The heart is conllinear；5th helical gear 35 is snapped at side gear 36, and the wheel shaft of the 5th helical gear 35 is connected to output shaft 46 and connect
By power.
When the present embodiment is implemented, motor 5 is conveyed by the first transmission mechanism 3 and the second transmission mechanism 4 to two holders 2
Power, when normal operation, motor 5 drives turbine 42 to rotate by input shaft 44, and turbine 42 drives the liquid flow in liquid case 41
It is dynamic, so that liquid drives runner 45 to rotate, the concomitant rotation of output shaft 46；The 5th helical gear 35 is rotated immediately, and drives side gear
36 rotate, and two supports 37 on side gear 36 rotate and drive the first helical gear 31 and the 3rd helical gear 33 to rotate, so as to
Two holders 2 export power, and cable 1 is moved；During due to proper motion, the resistance phase that cable 1 is subject on two holders 2
Together, so the first helical gear 31 is identical with the rotating speed of the 3rd helical gear 33.When the cable 1 for having side is increased by resistance, second
The helical gear 34 of helical gear 32 and the 4th starts rotation, so that the rotating speed of the 5th helical gear 35 conveying is in the He of the first helical gear 31
Changed on 3rd helical gear 33, so as to reduce the movement velocity that resistance increases side cable 1, it is ensured that the tension force of cable 1 will not
Excessive, the insulating barrier of cable 1 is survivable, has ensured Electrical Safety；When the resistance that cable 1 is subject to is excessive, turbine 42 is with hydrodynamic
Liquid flowing in case 41, and runner 45 increases due to resistance, the kinetic energy of the liquid in liquid case 41 will not be fully transmitted to runner
On 45, but returned by through hole 43 at turbine 42, so that the speed of service of cable 1 on two holders 2 is reduced, so as to enter one
Step reduces the tension force on cable 1.First transmission mechanism 3 and the second transmission mechanism 4 are respectively as two-stage reduction of speed, it is ensured that cable
Tension force on 1 will not be excessive.Simultaneously because the reliability of control panel depends on life-span most short electric elements on control panel,
So the reliability of control panel is nothing like mechanical structure, this is allowed for when cable 1 is conveyed, and the reliability of mechanical structure is more
Height, the probability that cable 1 is damaged is lower.The present invention is cooperated by the first transmission mechanism 3 and the second transmission mechanism 4, is realized
By mechanical mechanism to the reduction of speed for the continuous two-stage of cable for receiving resistance, so as to reduce the tension force on cable 1, electricity consumption is improved
Safety, and reliability is high.
Embodiment 2
As shown in Fig. 2 the present embodiment is on the basis of embodiment 1, the liquid set in the liquid case 41 uses machine oil.Institute
State holder 2 including driving wheel 21, the first crawler belt 22, the first driven pulley 23, the second driven pulley 24, the second crawler belt 25 and the 3rd from
Driving wheel 26；First crawler belt 22 is arranged at the outer rim of the driven pulley 23 of driving wheel 21 and first；Second crawler belt 25 is arranged at
Second driven pulley 24 and the 3rd driven pulley 26；The driving wheel 21 is connected to the first transmission mechanism 3 and receives power.
When the present embodiment is implemented, because the compression ratio of machine oil is very low, so setting machine oil in the liquid case 41, it is to avoid power
The waste of output, by setting said apparatus so that cable 1 can be clamped the held tight of part 2.
Embodiment 3
The present embodiment is on the basis of embodiment 1, and the diameter of the through hole 43 set on the turbine 42 is straight using turbine 42
The 10~15% of footpath.The height of the flabellum of the runner 45 uses the 15~20% of the diameter of runner 45.The blade of turbine 42 is used
The 10~15% of the diameter of turbine 42.
When the present embodiment is implemented, inventor has found, when the diameter of through hole 43 uses the 10~15% of the diameter of turbine 42, i.e.,
The power that can effectively avoid runner 45 from exporting is excessive, and the rotating speed of runner 45 can also be avoided too low.The height of the flabellum of runner 45
Degree, so that flowing of the runner 45 to liquid is more sensitive, improves whole equipment using the 15~20% of the diameter of runner 45
Sensitivity.The blade of turbine 42 uses the 10~15% of the diameter of turbine 42, so that when turbine 42 drives liquid to rotate,
Energy transmission effect to liquid is more obvious, improves the sensitivity of whole equipment.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (10)
1. a kind of cable puller suitable for out-of-flatness region, it is characterised in that including two holders (2), the first transmission
Mechanism (3), the second transmission mechanism (4) and motor (5)；Described two holders (2) be arranged in parallel, and two holders (2) point
Jia Chi not a cable (1)；The motor (5), the second transmission mechanism (4) and the first transmission mechanism (3) are sequentially connected, and second
The power of motor (5) is transported on two holders (2) by transmission mechanism (4) and the first transmission mechanism (3), described two clampings
Part (2) drives cable movement；Second transmission mechanism (4) includes liquid case (41), turbine (42), through hole (43), input shaft
(44), runner (45) and output shaft (46)；Liquid is set in the liquid case (41)；The turbine (42) and runner (45) are to setting
It is placed in liquid case (41), and input shaft (44) one end connection turbine (42), other end connection motor (5) output end；The output
Axle (46) one end connection runner (45), the other end connects the first transmission mechanism (3)；Set on the turbine (42) and run through turbine
(42) through hole (43)；First transmission mechanism (3) includes the first helical gear (31), the second helical gear (32), the 3rd helical teeth
Take turns (33), the 4th helical gear (34), the 5th helical gear (35), side gear (36) and two supports (37)；First helical gear
(31), the second helical gear (32), the 3rd helical gear (33) and the 4th helical gear (34) are engaged successively, and the 4th helical gear (34) and
First helical gear (31) is engaged；The wheel shaft of first helical gear (31) is connected to holder (2) and exports power, and the described 3rd
Helical gear (33) wheel shaft is connected to another holder (2) and exports power；Described two supports (37) are arranged at side gear
(36) on, and the wheel shaft of the second helical gear (32) is movably set in the one end of a support (37) away from side gear (36), the 4th
The wheel shaft of helical gear (34) is movably set in the one end of another support (37) away from side gear (36)；Described two supports (37)
It is arranged at the end points of one end on side gear (36) conllinear with the axle center of side gear (36)；5th helical gear (35) is snapped at side
Gear (36), and the wheel shaft of the 5th helical gear (35) is connected to output shaft (46) and receives power.
2. a kind of cable puller suitable for out-of-flatness region according to claim 1, it is characterised in that the liquid case
(41) liquid set in uses machine oil.
3. a kind of cable puller suitable for out-of-flatness region according to claim 1, it is characterised in that the clamping
Part (2) include driving wheel (21), the first crawler belt (22), the first driven pulley (23), the second driven pulley (24), the second crawler belt (25) and
3rd driven pulley (26)；First crawler belt (22) is arranged at the outer rim of driving wheel (21) and the first driven pulley (23)；Described
Two crawler belts (25) are arranged at the second driven pulley (24) and the 3rd driven pulley (26)；The driving wheel (21) is connected to the first driver
Structure (3) simultaneously receives power.
4. a kind of cable puller suitable for out-of-flatness region according to claim 1, it is characterised in that described first
Helical gear (31), the second helical gear (32), the 3rd helical gear (33), the 4th helical gear (34) and the 5th helical gear (35) are used
42CrMo steel.
5. a kind of cable puller suitable for out-of-flatness region according to claim 1, it is characterised in that the turbine
(42) blade uses 20Cr steel.
6. a kind of cable puller suitable for out-of-flatness region according to claim 1, it is characterised in that the turbine
(42) diameter of the through hole (43) set on uses the 10~15% of turbine (42) diameter.
7. a kind of cable puller suitable for out-of-flatness region according to claim 1, it is characterised in that the runner
(45) height of flabellum uses the 15~20% of runner (45) diameter.
8. a kind of cable puller suitable for out-of-flatness region according to claim 1, it is characterised in that turbine (42)
Blade use turbine (42) diameter 10~15%.
9. a kind of cable puller suitable for out-of-flatness region according to claim 1, it is characterised in that described two
Support (37) uses cast iron.
10. a kind of cable puller suitable for out-of-flatness region according to claim 1, it is characterised in that described two
Individual support (37) is by being welded to connect in the side of side gear (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659233.6A CN107240893B (en) | 2017-08-04 | 2017-08-04 | A kind of cable puller suitable for out-of-flatness region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659233.6A CN107240893B (en) | 2017-08-04 | 2017-08-04 | A kind of cable puller suitable for out-of-flatness region |
Publications (2)
| Publication Number | Publication Date |
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| CN107240893A true CN107240893A (en) | 2017-10-10 |
| CN107240893B CN107240893B (en) | 2018-09-11 |
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ID=59989918
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710659233.6A Active CN107240893B (en) | 2017-08-04 | 2017-08-04 | A kind of cable puller suitable for out-of-flatness region |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004058196A (en) * | 2002-07-29 | 2004-02-26 | Tohoku Electric Power Co Inc | Remote operation tool |
| CN2708546Y (en) * | 2004-07-03 | 2005-07-06 | 乔维宝 | Constant-tension cable drum apparatus |
| CN201393010Y (en) * | 2009-04-08 | 2010-01-27 | 安徽长江精工电工机械制造有限公司 | Cable traction apparatus equipped with low-angle bevel wheel |
| CN101806349A (en) * | 2010-04-30 | 2010-08-18 | 常州汉森机械有限公司 | Crawler-type traveling power transmission |
| CN102421692A (en) * | 2009-05-12 | 2012-04-18 | 全秉寿 | Apparatus for equalizing the tensions among elevator wire ropes |
| CN104242162A (en) * | 2014-07-28 | 2014-12-24 | 国家电网公司 | Electric variable-frequency high-voltage cable conveying construction technology |
| CN106286748A (en) * | 2016-10-13 | 2017-01-04 | 重庆大学 | Dual input multi-change speed worm reducer |
-
2017
- 2017-08-04 CN CN201710659233.6A patent/CN107240893B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004058196A (en) * | 2002-07-29 | 2004-02-26 | Tohoku Electric Power Co Inc | Remote operation tool |
| CN2708546Y (en) * | 2004-07-03 | 2005-07-06 | 乔维宝 | Constant-tension cable drum apparatus |
| CN201393010Y (en) * | 2009-04-08 | 2010-01-27 | 安徽长江精工电工机械制造有限公司 | Cable traction apparatus equipped with low-angle bevel wheel |
| CN102421692A (en) * | 2009-05-12 | 2012-04-18 | 全秉寿 | Apparatus for equalizing the tensions among elevator wire ropes |
| CN101806349A (en) * | 2010-04-30 | 2010-08-18 | 常州汉森机械有限公司 | Crawler-type traveling power transmission |
| CN104242162A (en) * | 2014-07-28 | 2014-12-24 | 国家电网公司 | Electric variable-frequency high-voltage cable conveying construction technology |
| CN106286748A (en) * | 2016-10-13 | 2017-01-04 | 重庆大学 | Dual input multi-change speed worm reducer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107240893B (en) | 2018-09-11 |
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