CN103193172A - Winding machine without rope tangling - Google Patents
Winding machine without rope tangling Download PDFInfo
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- CN103193172A CN103193172A CN2013101177729A CN201310117772A CN103193172A CN 103193172 A CN103193172 A CN 103193172A CN 2013101177729 A CN2013101177729 A CN 2013101177729A CN 201310117772 A CN201310117772 A CN 201310117772A CN 103193172 A CN103193172 A CN 103193172A
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- 238000004804 winding Methods 0.000 title abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 86
- 239000010959 steel Substances 0.000 claims abstract description 86
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 241000269799 Perca fluviatilis Species 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 abstract 2
- 238000010276 construction Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
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Abstract
The invention discloses a winding machine without rope tangling. The winding machine comprises a frame, a steel wire rope winding device and a steel wire rope tensioning device, wherein the steel wire rope winding device and the steel wire rope tensioning device are mounted on the frame. The winding machine is characterized in that the steel wire rope winding device mainly comprises a spindle, a left bidirectional lead screw sleeve, a right bidirectional lead screw sleeve, an upper spline tile, a lower spline tile, a winding drum, a left winding drum rib plate, a right winding drum rib plate, a left ball slider and a right ball slider, and the steel wire rope tensioning device mainly comprises a driving shaft, a driven shaft, a tensioning wheel, a left transmission device, a right transmission device, a left tensioning device and a right tensioning device. The winding machine mainly has the advantages that the winding drum of the steel wire rope winding device axially moves left and right in a reciprocating manner while axially rotating relative to the frame, and the position of a winding point of a steel wire rope constantly remains unchanged relative to the frame.
Description
Technical field
The present invention relates to technical field of engineering machinery, specifically is a kind of winch that does not have the disorder cable phenomenon.
Background technology
Winch is mainly used in construction fields such as building, bridge, metallurgy, mine and oil field, but because the restriction of installing space and environmental conditions, make that the rope feeding angle of steel rope is bigger than normal, and steel rope is when non-loaded, the steel rope that twines on the reel is loosening easily, thereby the row's of making rope is uneven, easily cause steel rope to press situations such as rope, disorder cable, mutual extruding, cause the rope woolding confusion, work efficiency is not high, shorten the service life of steel rope, and have potential safety hazard.The existing steel rope rope feeding angle problem that solves adopts rope winding jib mostly, the steel rope rope feeding angle is met the demands, be the Chinese utility model patent of CN20123120Y as publication number, at winch automatic rope arranger is installed, but rope winding jib belonging to forced rope, is the plan of taking stopgap measures, fundamentally do not eliminate the side force that steel rope causes owing to rope feeding angle is excessive, make steel rope abrasion more serious on the contrary, reduced steel rope service life, effect is undesirable.And for example publication number is the Chinese utility model patent of CN202284128U, a kind of winch is provided, and it is that cylinder and roller shaft are arranged to axially slidably draw bail, and cylinder carries out worm drive by screw rod and nut, when cylinder rotates, the rolling out a position and can remain unchanged of drag-line.Though this technology has been eliminated rope feeding angle because the transmission of screw rod and nut limits, steel rope can only winding of single layer on reel, can't satisfy construction field length such as oil field, mine apart from the needs of operation, range of use is restricted.Existing winch all can not give steel rope certain tensile force when non-loaded in addition, thereby the disorder cable phenomenon is still existed inevitably.
Summary of the invention
At the deficiencies in the prior art, the technical matters that quasi-solution of the present invention is determined is: design a kind of winch that does not have the disorder cable phenomenon, this winch has been eliminated rope feeding angle, for steel rope provides tensile force, the steel rope multilayer closely is arranged on the reel, solves disorder cable problem, the service life of having improved work efficiency and the steel rope of winch from root, and simple in structure, range of use is wide.
The technical scheme that the present invention solve the technical problem is, design a kind of winch that does not have the disorder cable phenomenon, comprise frame and be installed on steel rope elevator device and steel wire rope stretching device on the frame, it is characterized in that: described steel rope elevator device is mainly by main shaft, and left and right two-way leading screw sleeve, upper and lower spline tile, reel, left and right reel floor and left and right ball slide block are formed; Described main shaft is stepped shaft, and the centre is thick axle, and two ends are thin axle, select an end of stepped shaft to be connected with engine installation, speed reduction gearing and brake equipment as required; Described left and right two-way leading screw sleeve assembles by the thin axle at bearing and main shaft two ends, and is fixed on the described frame by bolt; Described upper and lower spline tile is fixed on the thick axle of main shaft by bolt, gives rack-mounted reel with the torque drive of engine installation output; Described left and right reel floor is fixed on the described reel by bolt, with described upper and lower spline tile bearing fit, and moves back and forth about can be thereon; Described left and right ball slide block is installed on respectively in the described left and right cylinder floor, and can swing certain angle within it, left and right ball slide block matches with the screw thread of described left and right two-way leading screw sleeve respectively simultaneously, and can roll thereon, described reel is back and forth moved axially about axially rotation, one side on one side with respect to described frame; The screw thread one end sealing of described left and right two-way leading screw sleeve, the other end does not seal, and the flight pitch of left and right two-way leading screw sleeve is consistent with the diameter design of steel rope; Described left and right ball slide block structure is the same, includes outer ring, inner ring and ball, and the projection on the outer ring embeds in the ball hole of inner ring, and extruding ball wherein;
Described steel wire rope stretching device mainly comprises imput shaft, driven shaft, tension wheel, left and right driving device and left and right tightening device; Described imput shaft is installed on the frame by bearing, and tension wheel is equipped with in the centre of imput shaft; Described driven shaft is installed in the slideway of frame, and can move in slideway, and same tension wheel is equipped with in the centre of driven shaft; Described left and right driving device is made up of driving wheel, ratchet and belt, and driving wheel is installed on the two ends of main shaft, and ratchet is installed on the two ends of imput shaft; Described left and right tightening device is made up of otic placode, spring perch, spring, screw rod and nut, otic placode is installed on the two ends of imput shaft by bearing, spring perch is connected on the frame, and vertical with the direction of slideway, and screw rod, nut and spring are installed in the hole of otic placode and spring perch.
Compared with prior art, the present invention's winch of not having a disorder cable phenomenon has following characteristics:
1. simple in structure, applied range.Reel on the steel rope elevator device of winch of the present invention can rotate on one side with respect to frame when operation, back and forth move axially on one side, and a position that rolls out that guarantees steel rope remains constant with respect to frame, can satisfy the demand of the tight arranging steel wire rope of reel multilayer, can not only in construction fields such as building, bridge, use, also can satisfy construction field length such as oil field, mine apart from the needs of operation.
2. easy and simple to handle, efficient improves.The steel wire rope stretching device of winch of the present invention can regulate manually automatically, also that steel rope rolls out a little and two tension wheels between the tensioning of rope, avoided winch when non-loaded because the loosening disorder cable that causes of steel rope has improved production efficiency.
3. steel rope prolongs service life.The present invention can with steel rope accurately closely single or multiple lift be arranged on the lifting drum, the serious accident of not only fundamentally having avoided the steel rope disorder cable to cause, also avoid steel rope by the unnecessary wearing and tearing that the strand oscillator forced rope causes, prolonged the service life of steel rope.
Description of drawings
Fig. 1 does not have the overall structure scheme drawing of a kind of embodiment of winch of disorder cable phenomenon for the present invention.
Fig. 2 does not have the main axle structure scheme drawing of a kind of embodiment of winch of disorder cable phenomenon for the present invention.
Fig. 3 does not have the two-way screw structure scheme drawing of a kind of embodiment of winch of disorder cable phenomenon for the present invention.
Fig. 4 does not have main shaft and left and right two-way leading screw sleeve and the left and right ball slide block mounting structure scheme drawing of a kind of embodiment of winch of disorder cable phenomenon for the present invention.
Fig. 5 does not have the reel floor shape structural representation of a kind of embodiment of winch of disorder cable phenomenon for the present invention.
Fig. 6 does not have the ball slide block shape and structure scheme drawing of a kind of embodiment of winch of disorder cable phenomenon for the present invention.
Fig. 7 does not have the tightening device shape and structure scheme drawing of a kind of embodiment of winch of disorder cable phenomenon for the present invention.
Fig. 8 does not have the screw rod shape structural representation of a kind of embodiment of winch of disorder cable phenomenon for the present invention.
The specific embodiment
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is described in further detail below in conjunction with specific embodiment and accompanying drawing thereof.Should be understood that; the accompanying drawing that constitutes the embodiment of the present application part is used to provide further understanding of the present invention; in this part only is explanation to specific embodiment to the description of concrete structure and description order, should not be considered as that the protection domain of invention is had any restriction.
The winch of the no disorder cable phenomenon of the present invention's design (being called for short winch, referring to Fig. 1-8) comprises frame 1, steel rope elevator device 2 and steel wire rope stretching device 3, and described steel rope elevator device 2, tightening device 3 are installed on the frame 1; It is characterized in that described steel rope elevator device 2 comprises main shaft 21, left two-way leading screw sleeve 22, right two-way leading screw sleeve 23, upper spline tile 24, following spline tile 25, reel 26, left reel floor 27, right reel floor 28, pearl slide block 271 and right ball slide block 281 roll left; Described main shaft 21 is stepped shaft (referring to Fig. 2,1), and middle thick, two ends are thin, selects one end (left end or right-hand member) to be connected with engine installation, speed reduction gearing and brake equipment according to requirement of engineering; The two-way leading screw sleeve 22 in a described left side, right two-way leading screw sleeve 23 assemble by the thin axle at bearing and described main shaft 21 two ends, and are fixed on the described frame 1 by bolt; Described upper spline tile 24, following spline tile 25 are fixed on the thick axle in centre of described main shaft 21 by bolt, give reel 26 with the torque drive of engine installation output; Described left reel floor 27, right reel floor 28 are fixed on by the bolt symmetry on the two ends of described reel 26, with described upper spline tile 24, following spline tile 25 bearing fits, and move back and forth about can be thereon; The described pearl slide block 271 that rolls left, right ball slide block 281 are installed on respectively in the described floor 27 that rolls left, the right cylinder floor 28, and can swing certain angle within it, respectively with the screw thread fit of the two-way leading screw sleeve 22 in a described left side, right two-way leading screw sleeve 23, and can roll thereon, described reel 26 is moved back and forth about rotating with respect to described frame 1, an A position that rolls out of steel rope is remained unchanged with respect to described frame 1, satisfy steel rope compact arranged demand of multilayer on reel 26.Described reel 26 and left and right reel floor 27,28 are bearing fit.
Realize commutation smoothly in order to make the pearl slide block 271 that rolls left, right ball slide block 281, the left end of the two-way leading screw sleeve 22 in a described left side, the right-hand member screw thread of right two-way leading screw sleeve 23 seals respectively, the other end does not seal, and the diameter design consistent (referring to Fig. 3) of left and right two-way leading screw sleeve 22,23 flight pitch and steel rope.
Described left and right ball slide block 271,281 structures are the same, include outer ring, inner ring and ball.Described ball can be for more than 3.Specifically, the described pearl slide block 271 that rolls left comprises inner ring 2711, outer ring 2712 and ball 2713, and the projection on the outer ring 2712 embeds in the ball hole of inner ring 2711, and extruding ball 2713(wherein is referring to Fig. 6).Described right ball slide block 281 is consistent with described pearl slide block 271 symmetrical configuration that roll left.Described left and right ball slide block 271,281 ball are spheroidal, cylindrical or conical.
Described steel wire rope stretching device 3 comprises imput shaft 31, driven shaft 32, tension wheel 33, Left Drive device 34, right driving device 35, left tightening device 36 and right tightening device 37; Described imput shaft 31 is installed on the described frame 1 by bearing, and tension wheel 33 is equipped with in the centre; Driven shaft 32 is installed in the slideway of described frame 1, and can move in slideway, and same tension wheel 33 is equipped with in the centre of driven shaft 32; Described Left Drive device 34 is by driving wheel 341, belt 342 and ratchet 343 are formed, right driving device 35 is by driving wheel 351, belt 352 and ratchet 353 are formed, the driving wheel 341 of Left Drive device 34 and driving wheel 351 symmetries of right driving device 35 are installed on the two ends of main shaft 21, the ratchet 343 of Left Drive device 34 and ratchet 353 symmetries of right driving device 35 are installed on the two ends of imput shaft 31, the belt 342 of Left Drive device 34 is installed in the belt grooves of driving wheel 341 and ratchet 343, and the belt 352 of right driving device 35 is installed in the belt grooves of driving wheel 351 and ratchet 353; Described left tightening device 36 is by otic placode 361, spring perch 362, screw rod 363, nut 364 and spring 365 are formed, right tightening device 37 is by otic placode 371, spring perch 372, screw rod 373, nut 374 and spring 375 are formed, the otic placode 361 of left side tightening device 36 and the otic placode 371 of right tightening device 37 are installed on the two ends of described imput shaft 21 by the bearing symmetry, the spring perch 362 of described left tightening device is connected on the described left frame 11, the spring perch 372 of right tightening device 37 is connected on the described right frame 12, difference is also vertical with the direction of slideway, the screw rod 363 of described left tightening device 36, nut 364 and spring 365 are installed in the hole of otic placode 361 and spring perch 362; The screw rod 373 of same right tightening device 37, nut 374 and spring 375 are installed in the hole of otic placode 371 and spring perch 372 (referring to Fig. 1 and Fig. 7).
One end of described screw rod 373 (upper end or left end) is helicitic texture, is used for being connected with nut 374; The other end of screw rod 373 (lower end or right-hand member) has two sections screw threads, screw thread 3731 and right-hand thread 3732 namely, remainder is polished rod, and middle screw thread 3731 and right-hand thread 3732 are respectively applied to and being threaded of spring perch 372, and handle 3733(is equipped with referring to Fig. 8 in the bottom of screw rod 373).
The reel 26 of described steel rope elevator device 2 back and forth moved axially about axially rotation, one side on one side with respect to described frame 1 when the characteristics of winch of the present invention mainly were work, and make an A position that rolls out of steel rope 29 remain constantly with respect to described frame 1, thoroughly solve winch disorder cable problem.The described steel wire rope stretching device 3 of winch of the present invention can be finished the tensioning that steel rope rolls out steel rope 29 between an A and two tension wheels 33 automatically; Can realize manually that also steel rope rolls out the tensioning of steel rope 29 between an A and two tension wheels 33.
Working process and principle of work to winch of the present invention is described in detail below.
When engine installation drives main shaft 21 rotations, upper spline tile 24 and following spline tile 25 drive reel 26 and left reel floor 27, right reel floor 28 rotate, the left end of the two-way leading screw sleeve 22 in a left side and the right-hand member of right two-way leading screw sleeve 23 are separately fixed on left frame 11 and the right frame 12, roll in the ball 2813 difference screw thread thereon of the ball 2713 of the pearl slide block 271 that rolls left in the left side reel floor 27 and the right ball slide block 281 in the right reel floor 28, reel 26 and left reel floor 27, right reel floor about 28 are moved axially.When reel 26 moved to the limit on the right-right-hand limit position from left to right, right ball slide block 281 automatic reverses drove reel 26 and move from right to left; In like manner, when reel 26 moves to left-limit, pearl slide block 271 automatic reverses of rolling left, driving reel 26 moves from right to left, thereby reel 26 is axially moved back and forth on one side about rotation on one side with respect to frame 1, make an A position that rolls out of steel rope remain constantly with respect to frame 1, satisfy steel rope and tighten solid matter row and target requirement that can be multilaminate coiled at reel 26.
The described steel wire rope stretching device 3 of winch of the present invention can realize automatically that steel rope rolls out the tensioning of steel rope 29 between an A and two tension wheels 33: when steel rope rolls out end when non-loaded, this moment, steel rope 29 needed tensioning, slideway and the horizontal direction of driven shaft 12 place frames 1 have certain angle, gravity and left tightening device 36 at driven shaft 32, under the spring 365 of right tightening device 37 and the spring force effect of spring 375, two tension wheels 33 are adjacent to mutually, thereby clamp steel rope 29, when rope is put in the winding plant zero load, main shaft 21 rotations, driving wheel 351 in the right driving device 35 drives ratchet 353 rotations by belt 352 simultaneously, ratchet 343 in the Left Drive device 34 does not rotate at this moment, make imput shaft 31 and on tension wheel 33 rotate, thereby make steel rope roll out a linear velocity at A place less than the linear velocity at tension wheel 33 places, realize that steel rope rolls out the tensioning of steel rope 29 between an A and two tension wheels 33; When the unloaded receipts of winding plant are restricted, main shaft 21 rotations, driving wheel 341 in the Left Drive device 34 drives ratchet 343 rotations by belt 342 simultaneously, ratchet 353 in the right driving device 35 does not rotate at this moment, make imput shaft 31 and on tension wheel 33 rotate, thereby described steel rope rolls out a linear velocity at A place greater than the linear velocity at tension wheel 33 places, realize that steel rope rolls out a little and two tension wheels between the tensioning of steel rope 29.In addition, by changing the transmitting ratio of Left Drive device 34 and right driving device 35, can regulate the size of steel rope 29 tensile forces.When steel rope 29 rolls out end when load is arranged, this moment, steel rope 29 did not need tensioning, by the relative position of reel 26 and tension wheel 33 is set, the steel rope 29 that steel rope is rolled out between an A and two tension wheels 33 has certain angle with vertical direction, the gravity of wire rope roll output load can be stretching with this section steel rope, driven shaft 32 is moved along the slideway of frame 1, thereby two tension wheels 33 are separated.
Described steel wire rope stretching device 3 also can manually be regulated, realize that steel rope rolls out the tensioning of steel rope 29 between an A and two tension wheels 33, described left tightening device 36, screw thread 3631 and right-hand thread 3632 and middle screw thread 3731 and 3,732 two sections screw threads of right-hand thread during screw rod 363 and screw rod 373 lower ends of right tightening device 37 have respectively, when steel rope 29 does not need tensioning, the handle 3633 of elder generation's rotary screw 363 makes the screw-threaded engagement of middle screw thread 361 with the spring perch 362 of left tightening device 36, the handle 3733 of rotary screw 373 makes the screw-threaded engagement of middle screw thread 371 with the spring perch 372 of right tightening device 37 again, thereby two tension wheels 33 of imput shaft 31 and driven shaft 32 are broken away from, when steel rope 29 needs tensioning, make the screw-threaded engagement of right-hand thread 3632 with the spring perch 362 of left tightening device 36 earlier, make the screw-threaded engagement of right-hand thread 3732 with the spring perch 372 of right tightening device 37 again, thereby two tension wheels 33 of imput shaft 31 and driven shaft 32 are adjacent to, thereby clamp steel rope 29.In addition, the right-hand thread 3632 by changing described left tightening device 36 and the screw-threaded engagement degree of spring perch 362 also change the screw-threaded engagement degree of right-hand thread 3732 with the spring perch 372 of right tightening device 37 simultaneously, can change the gripping power to steel rope 29.
The present invention does not address part and is applicable to prior art.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
What want supplemental instruction is, the title of parts such as winch of the present invention described " upper and lower ", " forward and backward ", " left and right " or installation position word are according to shown in operation position or the accompanying drawing, only has relativism, perhaps only be in order to narrate removing and convenient, not represent uniqueness and the necessary property of this structure or installation site.The embodiment of winch of the present invention can do as required fully and nonessentially suitably adjust and change.
Claims (5)
1. winch that does not have the disorder cable phenomenon, comprise frame and be installed on steel rope elevator device and steel wire rope stretching device on the frame, it is characterized in that: described steel rope elevator device mainly is made up of main shaft, left and right two-way leading screw sleeve, upper and lower spline tile, reel, left and right reel floor and left and right ball slide block; Described main shaft is stepped shaft, and the centre is thick axle, and two ends are thin axle, select an end of stepped shaft to be connected with engine installation, speed reduction gearing and brake equipment as required; Described left and right two-way leading screw sleeve assembles by the thin axle at bearing and main shaft two ends, and is fixed on the described frame by bolt; Described upper and lower spline tile is fixed on the thick axle of main shaft by bolt, gives rack-mounted reel with the torque drive of engine installation output; Described left and right reel floor is fixed on the described reel by bolt, with described upper and lower spline tile bearing fit, and moves back and forth about can be thereon; Described left and right ball slide block is installed on respectively in the described left and right cylinder floor, and can swing certain angle within it, left and right ball slide block matches with the screw thread of described left and right two-way leading screw sleeve respectively simultaneously, and can roll thereon, described reel is back and forth moved axially about axially rotation, one side on one side with respect to described frame; The screw thread one end sealing of described left and right two-way leading screw sleeve, the other end does not seal, and the flight pitch of left and right two-way leading screw sleeve is consistent with the diameter design of steel rope; Described left and right ball slide block structure is the same, includes outer ring, inner ring and ball, and the projection on the outer ring embeds in the ball hole of inner ring, and extruding ball wherein;
Described steel wire rope stretching device mainly comprises imput shaft, driven shaft, tension wheel, left and right driving device and left and right tightening device; Described imput shaft is installed on the frame by bearing, and tension wheel is equipped with in the centre of imput shaft; Described driven shaft is installed in the slideway of frame, and can move in slideway, and same tension wheel is equipped with in the centre of driven shaft; Described left and right driving device is made up of driving wheel, ratchet and belt, and driving wheel is installed on the two ends of main shaft, and ratchet is installed on the two ends of imput shaft; Described left and right tightening device is made up of otic placode, spring perch, spring, screw rod and nut, otic placode is installed on the two ends of imput shaft by bearing, spring perch is connected on the frame, and vertical with the direction of slideway, and screw rod, nut and spring are installed in the hole of otic placode and spring perch.
2. the winch of no disorder cable phenomenon according to claim 1 is characterized in that described upper and lower spline tile is trapezoidal key or triangular form key.
3. the winch of no disorder cable phenomenon according to claim 1, the ball that it is characterized in that described left and right ball slide block is spheroidal, cylindrical or conical; Described ball is more than 3.
4. the winch of no disorder cable phenomenon according to claim 1 is characterized in that described left and right driving device is chain transmission or gear transmission.
5. the winch of no disorder cable phenomenon according to claim 1, screw rod one end that it is characterized in that described left and right tightening device has left-hand thread, the other end has middle screw thread and two sections screw threads of right-hand thread, is polished rod between left-hand thread, middle screw thread and the right-hand thread, and handle is equipped with in the bottom of screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310117772.9A CN103193172B (en) | 2013-04-07 | 2013-04-07 | Winding machine without rope tangling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310117772.9A CN103193172B (en) | 2013-04-07 | 2013-04-07 | Winding machine without rope tangling |
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| Publication Number | Publication Date |
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| CN103193172A true CN103193172A (en) | 2013-07-10 |
| CN103193172B CN103193172B (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310117772.9A Expired - Fee Related CN103193172B (en) | 2013-04-07 | 2013-04-07 | Winding machine without rope tangling |
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| CN104229660A (en) * | 2014-08-21 | 2014-12-24 | 中国石油化工集团公司 | Pneumatic small winch automatic rope arrangement device |
| CN104528471A (en) * | 2014-11-27 | 2015-04-22 | 河北省机电一体化中试基地 | Constant-tension cable drum |
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| CN114855644A (en) * | 2022-03-25 | 2022-08-05 | 浙江恒炜建设集团有限公司 | Bridge main tower structure convenient to maintain and construction method thereof |
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| DE576345C (en) * | 1930-07-07 | 1933-05-10 | Pastor Santamarina Labora | Winch drum for cranes, elevators, etc. |
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