CN113118339A - High-altitude cable bending device - Google Patents
High-altitude cable bending device Download PDFInfo
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- CN113118339A CN113118339A CN202110443423.0A CN202110443423A CN113118339A CN 113118339 A CN113118339 A CN 113118339A CN 202110443423 A CN202110443423 A CN 202110443423A CN 113118339 A CN113118339 A CN 113118339A
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- 238000005452 bending Methods 0.000 title claims abstract description 117
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 210000000078 claw Anatomy 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 11
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
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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
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention relates to a high-altitude cable bending device which comprises a bottom plate, a first bending pipe, a second bending pipe and an inner diameter adjusting device. The inner diameter adjusting device is arranged on the bottom plate, and the first bending pipe and the second bending pipe are respectively arranged at the front end and the rear end of one side of the inner diameter adjusting device. The bottoms of the first bending pipe and the second bending pipe are both connected with sliding devices. The top surface of the bottom plate is internally provided with a first slide way and a second slide way in a concave manner, the second slide way is composed of a straight slide way and an arc-shaped slide way, the straight slide way and the arc-shaped slide way are communicated with each other, the arc-shaped slide way has a radian of 180 degrees, and the straight slide way and the first slide way are equal in length and are arranged on two sides of the inner diameter adjusting. The arc-shaped slideway is circularly arranged on the central line of the inner diameter adjusting device, and the arc-shaped slideway and the straight slideway are respectively arranged at two sides of the central line of the inner diameter adjusting device. The cable bending device can bend the cable at the top of the power transmission and distribution iron tower, and reduces the working strength of constructors. Meanwhile, the cable is bent in a constant radian and is more attractive.
Description
Technical Field
The invention belongs to the technical field of power construction, and particularly relates to a high-altitude cable bending device.
Background
In the process of erecting the high-voltage power transmission and distribution line, the cable needs to be bent. However, no special overhead cable bending tool exists at present, and basically, the cable is directly bent after a constructor wears an insulating glove. The bending method wastes time and labor, and meanwhile, the bending angle and the attractiveness of the cable cannot be guaranteed.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the overhead cable bending device can be used for bending the cable at the top of a power transmission and distribution iron tower, and reduces the working strength of constructors. Meanwhile, the cable has a bending arc all the time and is more attractive.
The technical scheme adopted by the invention for solving the problems in the prior art is as follows:
high altitude cable bending device is including bottom plate, first return bend, second return bend and internal diameter adjusting device.
The inner diameter adjusting device is arranged on the bottom plate, the first bending pipe and the second bending pipe are respectively arranged at the front end and the rear end of one side of the inner diameter adjusting device, and the shortest distance from the axis of the first bending pipe and the axis of the second bending pipe to the outer wall of the inner diameter adjusting device is larger than or equal to the diameter of a cable.
The first bending pipe and the second bending pipe are both semicircular pipes and are provided with openings facing the inner diameter adjusting device.
The bottoms of the first bending pipe and the second bending pipe are connected with sliding devices. The inner diameter adjusting device is characterized in that a first slide way and a second slide way are concavely arranged on the top surface of the bottom plate, the second slide way is composed of a straight slide way and an arc-shaped slide way, the straight slide way and the arc-shaped slide way are communicated with each other, the arc-shaped slide way is 180 degrees in radian, and the straight slide way and the first slide way are equal in length and are arranged on two sides of the inner.
The arc-shaped slideway is circularly arranged on the central line of the inner diameter adjusting device, and the arc-shaped slideway and the straight slideway are respectively arranged at two sides of the central line of the inner diameter adjusting device.
The sliding devices below the first bending pipe and the second bending pipe are respectively arranged inside the first slideway and inside the second slideway in a sliding manner.
A plurality of supporting rods are arranged below the bottom plate, and the tail ends of the supporting rods are provided with positioning claws.
Preferably, the inner diameter adjusting device comprises a top plate, 3-6 arc-shaped side plates, first conical teeth, second conical teeth and a fixing block.
The roof center is equipped with the hole, and first toper type tooth is located under the roof centre bore, and roof centre bore top is equipped with first hand wheel, and first hand wheel passes through round bar and first toper type tooth fixed connection.
A supporting frame is fixed above the top plate and sleeved on a round rod below the first hand wheel.
A plurality of arc sideboard centers on first toper profile tooth axis equipartition in the roof below, and second toper profile tooth and arc sideboard one-to-one are fixed with first screw rod, first screw rod and arc sideboard threaded connection in second toper profile tooth axis direction.
The second conical teeth are in meshed connection with the first conical teeth.
The fixed block is inserted inside the bottom plate, the bottom surface of the fixed block is lower than the bottom surface of the arc-shaped side plate, the top surface of the fixed block is fixedly connected with the top plate through a plurality of vertical connecting rods, and the screw rod penetrates through the connecting rods.
Preferably, the first and second liquid crystal materials are,
the top surface of the bottom plate is inwards provided with a threaded hole, the circumferential surface of the fixing block is provided with threads, and the fixing block is in threaded connection with the threaded hole.
Preferably, a first rotating shaft is arranged above the bottom plate and is positioned on one side of the first bending pipe, which is far away from the inner diameter adjusting device.
The second supporting frame is sleeved on the first rotating shaft, the bottom of the second supporting frame is fixedly connected with the bottom plate, the third conical teeth fixedly connected with the first rotating shaft and the first wire roller are sleeved on the first rotating shaft, and the first pull rope is wound on the first wire roller.
The bottom plate is internally provided with a first pull rope locating groove communicated with the second slide way, and the free end of the first pull rope passes through the first pull rope locating groove, the second slide way and the sliding device at the bottom of the second bend pipe to be fixedly connected.
One side of the first rotating shaft is provided with a speed change device, the third conical teeth are meshed and connected with the output end of the speed change device, and the input end of the speed change device is provided with a second hand wheel.
Preferably, first pivot one end be equipped with the second pivot of coaxial arrangement, the second pivot on the cover be equipped with rather than fixed connection's second line roller and rather than the second support frame of rotation connection.
And a second pull rope is wound on the second wire roller.
The bottom plate bottom surface be equipped with the second stay cord of U type and walk the groove, the second stay cord is walked the groove and is linked through with the one end that first slide is close to internal diameter adjusting device, the second stay cord passes second stay cord and walks the groove and first slide and the slider fixed connection of first bent pipe below.
The speed changing device drives the second rotating shaft to rotate.
Preferably, the bottom plate inside be equipped with the pneumatic cylinder and place chamber and hydraulic pressure pipe and walk the position groove, the pneumatic cylinder is placed the chamber and is located first slide towards the one end of internal diameter adjusting device, hydraulic pressure pipe walks the position groove and places the one end through connection that the chamber deviates from first slide with the pneumatic cylinder.
The first rotating shaft is internally provided with a telescopic cavity, and the inner wall of the telescopic cavity is internally provided with a spline groove.
And the telescopic cavity and the opening of the spline groove are arranged oppositely.
The telescopic cavity is internally provided with a spline and a spring, the spring is positioned at one end of the spline departing from the second rotating shaft, and a round rod is fixed at one end of the spline facing the second rotating shaft.
Under the thrust action of the spring, one part of the spline is positioned inside the spline groove, and the other part of the spline is positioned inside the telescopic cavity.
One end of the second rotating shaft, which deviates from the first rotating shaft, is provided with a first hydraulic cylinder, a first piston rod of the first hydraulic cylinder penetrates through the flower key groove, and the tail end of the first piston rod is in end face contact with the round rod.
The pneumatic cylinder is placed intracavity portion and is equipped with the second pneumatic cylinder, and the second piston rod of second pneumatic cylinder wears to establish to first slide inside.
The hydraulic pipe is arranged in the hydraulic pipe position-moving groove, and two ends of the hydraulic pipe are respectively in through connection with the first hydraulic cylinder and the second hydraulic cylinder.
The second cylinder internal volume is greater than the first cylinder internal volume.
Preferably, the speed changing device comprises a fourth conical tooth, a first gear, a second gear and a plug rod.
The fourth conical teeth are meshed and linked with the third conical teeth, and the number of the fourth conical teeth is less than or equal to that of the third conical teeth.
The first gear is coaxially and fixedly connected with the fourth conical teeth, the first gear is meshed with the second gear, and the number of teeth of the first gear is greater than that of the second gear.
The second gear is coaxially and fixedly connected with the inserted link, the section of the inserted link is polygonal, and the second hand wheel is sleeved on the inserted link.
Preferably, the sliding device comprises a base plate, a central shaft is vertically fixed above the center of the base plate, a sliding block is fixed at the top of the central shaft, a rotating ring is sleeved on the central shaft, the diameter of the rotating ring is larger than the width of the base plate and the width of the sliding block, and the rotating ring is in contact with the inner walls of two sides of the first sliding way and the second sliding way.
A side plate is fixed between the chassis and the sliding block and is fixedly connected with the first pull rope and the second pull rope.
Preferably, an L-shaped fixing plate is fixed at the bottom of the bottom plate.
One end of the supporting rod departing from the positioning claw is hinged with a rotating block, and the rotating block is rotatably connected with the bottom plate.
The positioning claw is clamped with the fixing plate.
The overhead cable bending method comprises the following steps:
A. the positioning claw threshing fixing plate is bent and then fixedly connected with a high-voltage transmission iron tower frame, and a cable to be bent is inserted into the positioning claw threshing fixing plate from the openings of the first bending pipe and the second bending pipe;
B. and the second hand wheel is rotated to drive the first rotating shaft to rotate through the speed changing device, and the first rotating shaft drives the second rotating shaft to rotate through the spline.
The first pull rope and the second pull rope are respectively wound on the first wire roller and the second wire roller so as to pull the first bent pipe and the second bent pipe to move towards the inner diameter adjusting device;
C. the cable is extruded by the inner diameter adjusting device, the cable in contact with the inner diameter adjusting device is extruded to be semicircular, and the first folding elbow pipe moves to the end of the first slideway at the moment.
Meanwhile, the sliding device below the first folding pipe pushes the second piston rod, hydraulic oil in the second hydraulic cylinder is pushed into the first hydraulic cylinder through the hydraulic pipe, the first piston rod is pushed to move towards the round rod, the spline groove is pushed out of the spline, and the first rotating shaft can not drive the second rotating shaft to rotate.
The first rotating shaft continues to rotate, so that the first pull rope continues to pull the second bending pipe to rotate 180 degrees around the center of the inner diameter adjusting device, and the cable is bent into a complete circle along the arc-shaped side plate of the inner diameter adjusting device;
D. after the cable is bent, the inner diameter adjusting device is taken down, the first bent pipe and the bent pipe are reset manually, and the bent cable is separated from the high-altitude cable bending device.
Compared with the prior art, the invention has the following beneficial effects:
(1) bottom plate, internal diameter adjusting device, second hand wheel in the high altitude cable bending device all can be dismantled, and several people of constructor of being convenient for carry high altitude cable bending device to the iron tower top jointly.
(2) The inner diameter adjusting device can adjust the bending radius of the cable.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Figure 1 is an outline view of the overhead cable bending device of the invention,
figure 2 is a bottom view of the overhead cable bending apparatus of the present invention,
FIG. 3 is an effect diagram of the high-altitude cable bending device of the present invention after the bracket is opened,
FIG. 4 is a diagram showing the effect of the bending tube of the overhead cable bending device of the present invention after folding,
FIG. 5 is a schematic view of the cable installation before bending by the overhead cable bending apparatus of the present invention,
FIG. 6 is a diagram showing the cable effect of the overhead cable bending apparatus according to the present invention after bending,
figure 7 is a structural diagram of a base plate of the overhead cable bending device,
figure 8 is a cross-sectional view of the overhead cable bending apparatus of the present invention,
FIG. 9 is a structural diagram of an inner diameter adjusting device of the overhead cable bending device of the invention,
figure 10 is a partial cross-sectional view of the inner diameter adjusting device of the overhead cable bending device of the invention,
figure 11 is a drawing mechanism structure diagram of the overhead cable bending device of the invention,
figure 12 is a close-up view of the pulling mechanism of the overhead cable bending apparatus of the present invention,
FIG. 13 is a partial enlarged view of the hand wheel of the traction mechanism of the overhead cable bending apparatus according to the present invention,
figure 14 is a partial cross-sectional view of the hydraulic mechanism of the aerial cable bending apparatus of the present invention,
figure 15 is an exploded view of the aerial cable bending apparatus line roller of the present invention,
figure 16 is a cross-sectional view of a wire roller of the overhead cable bending apparatus of the present invention,
figure 17 is a cross-sectional view of a bending pipe of the overhead cable bending device,
fig. 18 is a cross-sectional view of the overhead cable bender sliding apparatus of the present invention.
In the figure: 1-bottom plate, 101-first slideway, 102-second slideway, 1021-straight slideway, 1022-arc slideway, 103-second rope-pulling running groove, 104-first rope-pulling running groove, 105-hydraulic cylinder placing cavity, 106-hydraulic pipe running groove, 107-threaded hole, 108-through hole, 109-fixing plate, 1010-weight-reducing groove, 2-first bending pipe, 3-second bending pipe, 4-inner diameter adjusting device, 401-top plate, 4011-sliding groove, 4012-connecting rod, 402-arc side plate, 4021-pointer, 403-first cone-shaped tooth, 404-first hand wheel, 405-first supporting frame, 406-second cone-shaped tooth, 4061-first screw rod, 407-fixing block, 5-first rotating shaft, 501-third cone-shaped tooth, 502-telescopic cavity, 503-air hole, 6-first wire roller, 601-first pull rope, 7-second rotating shaft, 701-spline groove, 8-second wire roller, 801-second pull rope, 9-first hydraulic cylinder, 901-first piston rod, 10-speed change device, 1001-fourth tapered tooth, 1002-first gear, 1003-second gear, 1004-inserted rod, 1005-limiting disc, 1006-second screw, 1007-nut, 11-second hand wheel, 12-second hydraulic cylinder, 1201-second piston rod, 13-positioning claw, 1301-fastening bolt, 1302-support rod, 1303-rotating block, 14-cable, 15-hydraulic pipe, 16-sliding device, 1601-chassis, 1602-central shaft, 1603-side plate, 1604-rotating ring, 1605-sliding block, 17-second supporting frame, 18-spline, 1801-round rod and 19-spring
Detailed Description
The attached drawings are preferred embodiments of the overhead cable bending device, and the invention is further explained in detail with reference to the attached drawings.
As shown in fig. 1 and 2, the overhead cable bending device includes a bottom plate 1, a first bending pipe 2, a second bending pipe 3, and an inner diameter adjusting device 4. The first bending pipe 2 and the second bending pipe 3 are both arc pipes, and the radian is larger than 90 degrees and is less than or equal to 180 degrees. The first bending pipe 2 and the second bending pipe 3 are arranged in an open mode towards one surface of the inner diameter adjusting device 4, and the open radian is larger than or equal to 180 degrees.
Before the cable 14 is not bent, the first bending pipe 2 and the second bending pipe 3 are respectively positioned at the front end and the rear end of the same side of the inner diameter adjusting device 4, and the shortest distance between the axis of the first bending pipe 2 and the axis of the second bending pipe 3 to the outer wall of the inner diameter adjusting device 4 is larger than or equal to the diameter of the cable 14. When it is desired to bend the cable 14, as shown in fig. 5, the cable 14 is passed through the first bent tube 2 and then through the second bent tube 3. At this time, the inner diameter adjusting device 4 does not interfere with the cable.
The inner diameter adjusting device 4 is arranged on the bottom plate 1, as shown in fig. 8, a threaded hole 107 is concavely formed in the top surface of the bottom plate 1, and a thread is arranged on the circumferential surface of a fixing block 407 at the bottom of the inner diameter adjusting device 4. The fixing block 407 is screwed into the screw hole 107, so that the inner diameter adjusting device 4 is fixed to the base plate 1, and the inner diameter adjusting device 4 is easily detached. When the overhead cable bending device is brought to a high-voltage power transmission and distribution iron tower, the inner diameter adjusting device 4 can be separated from the bottom plate 1, and the overhead cable bending device is convenient to carry.
The inner diameter adjusting device 4 is used for determining the size of the inner diameter of the bent part of the cable 14. The inner diameter adjusting device 4 in this embodiment can adjust the outer diameter determined by the arc-shaped side plate 402. As shown in fig. 9 and 10, the inner diameter adjusting device 4 includes a top plate 401, 3 to 6 arc-shaped side plates 402, a first tapered tooth 403, a second tapered tooth 406, and a fixing block 407. The arc of the arcuate edge panel 402 is 360 divided by the number of arcuate edge panels 402. The number of the arc-shaped side plates in the embodiment is 4, and the radian of each arc-shaped side plate is 90 degrees.
A hole is formed in the center of the top plate 401, the first conical tooth 403 is located right below the center hole of the top plate 401, a first hand wheel 404 is arranged above the center hole of the top plate 401, and the first hand wheel 404 is fixedly connected with the first conical tooth 403 through a round rod.
A supporting frame 405 is fixed above the top plate 401, the supporting frame 405 is sleeved on a round bar below the first handwheel 404, two limiting rings are arranged on the round bar, and the supporting frame 405 is located between the two limiting rings to prevent the first tapered teeth 403 from moving upwards.
A plurality of arc sideboard 402 centers on first tapered tooth 403 axis equipartition in roof 401 below, and second tapered tooth 406 and arc sideboard 402 one-to-one, second tapered tooth 406 axis direction are fixed with first screw 4061, first screw 4061 and arc sideboard 402 threaded connection. The second tapered teeth 406 are in meshing connection with the first tapered teeth 403.
The first screw 4061 may have different thread directions, which ensures that all the arc-shaped side plates 402 move outward or inward simultaneously when the first tapered teeth 403 are rotated, and the moving direction and distance are constant.
Meanwhile, the top plate 401 is provided with sliding grooves 4011, the sliding grooves 4011 correspond to the arc-shaped side plates 402 one by one, and the outer side of each sliding groove 4011 is provided with a scale plate which is arranged in parallel. Pointer 4021 is arranged at the top of arc-shaped side plate 402, pointer 4021 is arranged in sliding groove 4011 in a sliding manner, and the moving distance of arc-shaped side plate 402, namely the bending radius of cable 14, is determined by the scale indicated by pointer 4021.
Inside bottom plate 1 was inserted to fixed block 407, fixed block 407 bottom surface was less than arc sideboard 402 bottom surface, through a plurality of vertically connecting rod 4012 fixed connection between fixed block 407 top surface and the roof 401, connecting rod 4012 is passed to first screw 4061, and connecting rod 4021 plays the spacing effect of support to first screw 4061.
The bottoms of the first bending pipe 2 and the second bending pipe 3 are both connected with a sliding device 16. As shown in fig. 17 and 18, the sliding device 16 includes a chassis 1601. A central shaft 1602 is vertically fixed above the center of the base 1601, a slider 1605 is fixed on the top of the central shaft 1602, a rotating ring 1604 is sleeved on the central shaft 1602, the diameter of the rotating ring 1604 is larger than the width of the base 1601 and the slider 1605, and a side plate 1603 is fixed between the base 1601 and the slider 1605. The slider 1605 in the sliding device 16 below the first bending pipe 2 is fixedly connected with the center of the bottom of the first bending pipe 2, the slider 1605 in the sliding device 16 below the second bending pipe 3 is fixedly connected with one side of the center of the second bending pipe 3 far away from the inner diameter adjusting device 4, and the farther the center of the second bending pipe 3 is, the larger the torque is during rotation.
As shown in fig. 7, the top surface of the bottom plate 1 is recessed with a first slide 101 and a second slide 102 having a convex cross-section. The second slideway 102 is composed of a straight slideway 1021 and an arc slideway 1022 with 180 degrees of arc, which are interconnected. The straight slideway 1021 and the first slideway 101 are equal in length and are arranged in parallel at two sides of the inner diameter adjusting device 4.
The arc-shaped slideway 1022 is circularly located on the central line of the inner diameter adjusting device 4, and the arc-shaped slideway 1022 and the straight slideway 1021 are respectively located on two sides of the central line of the inner diameter adjusting device 4.
The sliding devices 16 below the first bent pipe 2 and the second bent pipe 3 are respectively arranged inside the first slideway 101 and the second slideway 102 in a sliding manner, the sliding blocks 1605 are positioned on the upper portion with short section width, and the diameter of the rotating ring 1604 is the same as the width of the lower portion with long section width of the slideway, so that the rotating ring 1604 is in contact with the inner walls of the first slideway 101 and the second slideway 102, and the rotating ring is convenient to turn.
The second supporting frame 17 is sleeved on the first rotating shaft 5, the bottom of the second supporting frame 17 is fixedly connected with the bottom plate 1, the third conical teeth 501 fixedly connected with the first rotating shaft 5 and the first wire roller 6 are sleeved on the first rotating shaft 5, and the first pull rope 601 is wound on the first wire roller 6.
The bottom plate 1 is internally provided with a first pull rope positioning groove 104 communicated with the second slide way 102, and the first pull rope 601 penetrates through the first pull rope positioning groove 104 from the end, the second slide way 102 and the edge plate 1603 of the sliding device 16 at the bottom of the second bent pipe 3 to be fixedly connected.
One side of the first rotating shaft 5 is provided with a speed change device 10, the third conical teeth 501 are meshed and linked with the output end of the speed change device 10, the input end of the speed change device 10 is provided with a second hand wheel 11, and power can be provided for the speed change device 10 through electric tools such as an electric hand drill and the like.
As shown in fig. 13, the transmission 10 includes a fourth tapered tooth 1001, a first gear 1002, a second gear 1003, and a plunger 1004. The fourth bevel gear 1001 is meshed and linked with the third bevel gear 501, and the number of teeth of the fourth bevel gear 1001 is less than or equal to that of the third bevel gear 501.
The second gear 1003 is coaxially and fixedly connected with the plunger 1004, the cross section of the plunger 1004 is polygonal, and the second hand wheel 11 is sleeved on the plunger 1004. One side of the inserted link 1004 close to the second gear 1003 is provided with a limiting disc 1005, the other end of the inserted link is provided with a second screw 1006, the limiting disc 1005 prevents the second hand wheel 11 from contacting the second gear 1003, and after the second hand wheel 11 is inserted, the nut 1007 and the second screw 1006 are in threaded connection to fix the second hand wheel 11.
The second hand wheel 11 can be installed outside the bottom plate 1, so that the diameter of the second hand wheel 11 can be increased, and a constructor can exert force conveniently. And the speed is reduced all the time from the second hand wheel 11 to the third conical teeth 501, so that the torque can be effectively increased. So that the cable 14 can be bent with a small force, and the labor intensity of constructors is reduced.
A second pull rope 801 is wound around the second wire roller 8.
The bottom surface of the bottom plate 1 is provided with a U-shaped second pull rope position moving groove 103, the second pull rope position moving groove 103 is communicated with one end of the first slide way 101 close to the inner diameter adjusting device 4, and the second pull rope 801 passes through the second pull rope position moving groove 103 and the first slide way 101 to be fixedly connected with a side plate 1603 of the sliding device 16 below the first folding pipe 2.
The first rope 601 and the second rope 801 are turned into corners to increase pulleys and reduce friction resistance.
The bottom plate 1 inside be equipped with the pneumatic cylinder and place chamber 105 and hydraulic pressure pipe line groove 106, the pneumatic cylinder is placed chamber 105 and is located the one end of first slide 101 towards internal diameter adjusting device 4, hydraulic pressure pipe line groove 106 and the pneumatic cylinder place the one end through connection that chamber 105 deviates from first slide 101.
A telescopic cavity 502 is arranged inside the first rotating shaft 5, and a spline groove is formed in the inner wall of the telescopic cavity 502 in a concave mode.
The inner spline groove 701 of the second rotating shaft 7, the telescopic cavity 502 and the opening of the spline groove 701 are arranged oppositely.
The telescopic cavity 502 is internally provided with a spline 18 and a spring 19, the spring 19 is located at one end of the spline 18 departing from the second rotating shaft 7, and a round rod 1801 is fixed at one end of the spline 18 facing the second rotating shaft 7.
Under the thrust of the spring 19, the spline 18 is partially located inside the spline groove 701 and partially inside the telescopic cavity 502. Meanwhile, the end of the telescopic cavity 502 is provided with an air hole 503 to connect with the outside of the first rotating shaft 5. When the spline 18 is prevented from pressing the spring 19, air is not discharged, and resistance is increased.
One end of the second rotating shaft 7 departing from the first rotating shaft 5 is provided with a first hydraulic cylinder 9, a first piston rod 901 of the first hydraulic cylinder 9 penetrates through the spline groove 701, and the tail end of the first piston rod 901 is in end face contact with the round rod 1801.
The second hydraulic cylinder 12 is arranged in the hydraulic cylinder placing cavity 105, and a second piston rod 1201 of the second hydraulic cylinder 12 penetrates into the first slide 101.
The hydraulic pipe 15 is arranged in the hydraulic pipe locating groove 106, and two ends of the hydraulic pipe 15 are respectively connected with the first hydraulic cylinder 9 and the second hydraulic cylinder 12 in a penetrating way.
The internal volume of the second hydraulic cylinder 12 is larger than the internal volume of the first hydraulic cylinder 9, and the area inside the second hydraulic cylinder 12, between the first hydraulic cylinder 9 and the hydraulic pipe 15, is filled with hydraulic oil. The second hydraulic cylinder 12 has a large volume, so that when the hydraulic oil in the second hydraulic cylinder 12 is squeezed out, the first piston rod 901 can be completely ejected, and the second rotating shaft 7 is completely separated from the first rotating shaft 5.
A plurality of supporting rods 1302 are arranged below the bottom plate 1, and the tail ends of the supporting rods 1302 are provided with positioning claws 13. One end of the supporting rod 1302, which is far away from the positioning claw 13, is hinged with a rotating block 1303, and the rotating rod above the rotating block 1303 is rotatably connected with the bottom plate through a through hole 108 on the bottom plate 1. For more flexibility, the positioning claw 13 is hinged with the support rod 1302, a fastening bolt capable of being fixed in position is arranged at the hinged position, and a fastening bolt capable of being fixed in position is also arranged at the hinged position of the support rod 1302 and the rotating block 1303.
The positioning claw 13 is made of a U-shaped plate, and a fastening bolt 1301 in threaded connection is arranged on one side of the positioning claw 13 to help the positioning claw 13 to be fixedly connected with the power transmission and distribution iron tower.
The bottom of the bottom plate 1 is fixedly provided with an L-shaped fixing plate 109, and when the overhead cable bending device is moved, the positioning claw 13 is clamped with the fixing plate 109. The supporting rod 1302 is folded, so that the occupied space is reduced, and the carrying is convenient.
In order to further reduce the weight of the overhead cable bending device and facilitate carrying, a plurality of weight reduction grooves 1010 are formed in the bottom plate 1, and the mass of the bottom plate 1 is reduced.
The overhead cable bending method comprises the following steps:
A. the positioning claw 13 is used for threshing and fixing the plate 109, then the plate is fixedly connected with a high-voltage transmission iron tower frame after being bent, and a cable 14 needing to be bent is inserted into the plate from the openings of the first bent pipe 2 and the second bent pipe 3;
B. the second hand wheel 11 is rotated to drive the first rotating shaft 5 to rotate through the speed changing device 10, the first rotating shaft 5 drives the second rotating shaft 6 to rotate through the spline 18,
the first pulling rope 601 and the second pulling rope 801 are wound around the first wire roller 6 and the second wire roller 8, respectively, and further pull the first bent pipe 2 and the second bent pipe 3 to move toward the inner diameter adjusting device 4;
C. the cable 14 is pressed by the inner diameter adjusting device 4, the cable 14 contacting with the inner diameter adjusting device 4 is pressed to be semi-circular, at this time, the first bending pipe 2 moves to the end of the first slideway 101,
meanwhile, the sliding device 16 below the first bending pipe 2 pushes the second piston rod 1201, the hydraulic oil inside the second hydraulic cylinder 12 is pushed into the first hydraulic cylinder 9 through the hydraulic pipe 15, the first piston rod 901 is pushed to move towards the round rod 1801, the spline 18 is pushed out of the spline groove 701, so that the first rotating shaft 5 cannot drive the second rotating shaft 7 to rotate,
the first rotating shaft 5 continues to rotate, so that the first pull rope 601 continues to pull the second bent pipe 3 to rotate 180 degrees around the center of the inner diameter adjusting device 4, and the cable 14 is bent into a complete circle along the arc-shaped side plate 402 of the inner diameter adjusting device 4;
D. after the cable 14 is bent, the inner diameter adjusting device 4 is taken down, and the first bent pipe 2 and the bent pipe 3 are reset manually, so that the bent cable 14 is separated from the high-altitude cable bending device.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the embodiments described above, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. High altitude cable bending device, its characterized in that:
comprises a bottom plate (1), a first bending pipe (2), a second bending pipe (3) and an inner diameter adjusting device (4),
the inner diameter adjusting device (4) is arranged on the bottom plate (1), the first bending pipe (2) and the second bending pipe (3) are respectively positioned at the front end and the rear end of one side of the inner diameter adjusting device (4), the shortest distance between the axial line of the first bending pipe (2) and the second bending pipe (3) and the outer wall of the inner diameter adjusting device (4) is more than or equal to the diameter of the cable (14),
the first bending pipe (2) and the second bending pipe (3) are both semicircular pipes, and the openings of the semicircular pipes face the inner diameter adjusting device (4),
the bottoms of the first bending pipe (2) and the second bending pipe (3) are connected with sliding devices (16),
the top surface of the bottom plate (1) is internally provided with a first slideway (101) and a second slideway (102) in a concave manner, the second slideway (102) consists of a straight slideway (1021) and an arc slideway (1022) which are communicated with each other and have a radian of 180 degrees, the straight slideway (1021) and the first slideway (101) have equal length and are arranged at two sides of the inner diameter adjusting device (4) in parallel,
the arc-shaped slideway (1022) is circularly positioned on the central line of the inner diameter adjusting device (4), the arc-shaped slideway (1022) and the straight slideway (1021) are respectively positioned at two sides of the central line of the inner diameter adjusting device (4),
a sliding device (16) below the first bending pipe (2) and the second bending pipe (3) is respectively arranged in the first slideway (101) and the second slideway (102) in a sliding way,
a plurality of supporting rods (1302) are arranged below the bottom plate (1), and positioning claws (13) are arranged at the tail ends of the supporting rods (1302).
2. The overhead cable bending device according to claim 1, wherein:
the inner diameter adjusting device (4) comprises a top plate (401), 3-6 arc-shaped side plates (402), first conical teeth (403), second conical teeth (406) and a fixing block (407),
a hole is arranged at the center of the top plate (401), the first conical tooth (403) is positioned under the center hole of the top plate (401), a first hand wheel (404) is arranged above the center hole of the top plate (401), the first hand wheel (404) is fixedly connected with the first conical tooth (403) through a round rod,
a supporting frame (405) is fixed above the top plate (401), the supporting frame (405) is sleeved on a round rod below the first hand wheel (404),
a plurality of arc-shaped side plates (402) are uniformly distributed below the top plate (401) around the axis of the first conical teeth (403), the second conical teeth (406) correspond to the arc-shaped side plates (402) one by one, first screw rods (4061) are fixed in the axis direction of the second conical teeth (406), the first screw rods (4061) are in threaded connection with the arc-shaped side plates (402),
the second conical teeth (406) are meshed with the first conical teeth (403),
the fixed block (407) is inserted in the bottom plate (1), the bottom surface of the fixed block (407) is lower than the bottom surface of the arc-shaped side plate (402), the top surface of the fixed block (407) is fixedly connected with the top plate (401) through a plurality of vertical connecting rods (4012),
the screw rod passes through the connecting rod (4012).
3. The overhead cable bending device according to claim 2, wherein:
the top surface of the bottom plate (1) is inwards provided with a threaded hole (107), the circumferential surface of the fixing block (407) is provided with threads, and the fixing block (407) is in threaded connection with the threaded hole (107).
4. The aerial cable bending device according to claim 2 or 3, wherein:
a first rotating shaft (5) is arranged above the bottom plate (1), the first rotating shaft (5) is positioned at one side of the first bending pipe (2) departing from the inner diameter adjusting device (4),
a second supporting frame (17) is sleeved on the first rotating shaft (5), the bottom of the second supporting frame (17) is fixedly connected with the bottom plate (1), a third conical tooth (501) and a first wire roller (6) which are fixedly connected with the first rotating shaft (5) are sleeved on the first rotating shaft (5), a first pull rope (601) is wound on the first wire roller (6),
a first pull rope locating groove (104) communicated with the second slideway (102) is arranged in the bottom plate (1), the free end of the first pull rope (601) passes through the first pull rope locating groove (104), the second slideway (102) and is fixedly connected with a sliding device (16) at the bottom of the second bend pipe (3),
one side of the first rotating shaft (5) is provided with a speed change device (10), the third conical teeth (501) are meshed and linked with the output end of the speed change device (10), and the input end of the speed change device (10) is provided with a second hand wheel (11).
5. The overhead cable bending device according to claim 4, wherein:
one end of the first rotating shaft (5) is provided with a second rotating shaft (7) which is coaxially arranged, the second rotating shaft (7) is sleeved with a second wire roller (8) which is fixedly connected with the second rotating shaft and a second supporting frame (17) which is rotatably connected with the second rotating shaft,
a second pull rope (801) is wound on the second wire roller (8),
the bottom surface of the bottom plate (1) is provided with a U-shaped second pull rope position-moving groove (103), the second pull rope position-moving groove (103) is communicated with one end of the first slideway (101) close to the inner diameter adjusting device (4), the second pull rope (801) passes through the second pull rope position-moving groove (103) and the first slideway (101) and is fixedly connected with a sliding device (16) below the first folding elbow pipe (2),
the speed changing device (10) drives the second rotating shaft (7) to rotate.
6. The overhead cable bending device according to claim 5, wherein:
a hydraulic cylinder placing cavity (105) and a hydraulic pipe locating groove (106) are arranged in the bottom plate (1), the hydraulic cylinder placing cavity (105) is positioned at one end of the first slide way (101) facing the inner diameter adjusting device (4), the hydraulic pipe locating groove (106) is communicated with one end of the hydraulic cylinder placing cavity (105) deviating from the first slide way (101),
a telescopic cavity (502) is arranged in the first rotating shaft (5), a spline groove is recessed in the inner wall of the telescopic cavity (502),
the inner spline groove (701) of the second rotating shaft (7), the telescopic cavity (502) and the opening of the spline groove (701) are arranged oppositely,
a spline (18) and a spring (19) are arranged in the telescopic cavity (502), the spring (19) is positioned at one end of the spline (18) departing from the second rotating shaft (7), a round rod (1801) is fixed at one end of the spline (18) facing the second rotating shaft (7),
under the thrust action of the spring (19), the spline (18) is partially positioned inside the spline groove (701) and partially positioned inside the telescopic cavity (502),
one end of the second rotating shaft (7) departing from the first rotating shaft (5) is provided with a first hydraulic cylinder (9), a first piston rod (901) of the first hydraulic cylinder (9) penetrates into the spline groove (701), the tail end of the first piston rod (901) is in end face contact with the round rod (1801),
a second hydraulic cylinder (12) is arranged in the hydraulic cylinder placing cavity (105), a second piston rod (1201) of the second hydraulic cylinder (12) penetrates into the first slide way (101),
a hydraulic pipe (15) is arranged in the hydraulic pipe position-moving groove (106), two ends of the hydraulic pipe (15) are respectively communicated with the first hydraulic cylinder (9) and the second hydraulic cylinder (12),
the internal volume of the second hydraulic cylinder (12) is larger than that of the first hydraulic cylinder (9).
7. The aerial cable bending device according to claim 5 or 6, wherein:
the speed changing device (10) comprises a fourth conical tooth (1001), a first gear (1002), a second gear (1003) and an inserted rod (1004),
the fourth conical tooth (1001) is meshed and linked with the third conical tooth (501), the number of the fourth conical tooth (1001) is less than or equal to that of the third conical tooth (501),
the first gear (1002) is coaxially and fixedly connected with the fourth conical tooth (1001), the first gear (1002) is meshed with the second gear (1003), the number of teeth of the first gear (1002) is greater than that of the second gear (1003),
the second gear (1003) is coaxially and fixedly connected with the inserted link (1004), the section of the inserted link (1004) is polygonal, and the second hand wheel (11) is sleeved on the inserted link (1004).
8. The aerial cable bending device according to claim 5 or 6, wherein:
the sliding device (16) comprises a base plate (1601), a central shaft (1602) is vertically fixed above the center of the base plate (1601), a sliding block (1605) is fixed at the top of the central shaft (1602), a rotating ring (1604) is sleeved on the central shaft (1602), the diameter of the rotating ring (1604) is larger than the width of the base plate (1601) and the width of the sliding block (1605), the rotating ring (1604) is in contact with the inner walls of the two sides of the first slideway (101) and the second slideway (102),
an edge plate (1603) is fixed between the chassis (1601) and the slide block (1605), and the edge plate is fixedly connected with the first pull rope (601) and the second pull rope (801).
9. The overhead cable bending device according to claim 8, wherein:
an L-shaped fixing plate (109) is fixed at the bottom of the bottom plate (1),
one end of the support rod (1302) departing from the positioning claw (13) is hinged with a rotating block (1303), the rotating block (1303) is rotatably connected with the bottom plate (1),
the positioning claw (13) is clamped with the fixing plate (109).
10. The overhead cable bending method is characterized by comprising the following steps:
A. threshing a fixing plate (109) by a positioning claw (13), then bending and fixedly connecting the fixing plate with a high-voltage transmission iron tower frame, and inserting a cable (14) to be bent into the fixing plate from the openings of a first bent pipe (2) and a second bent pipe (3);
B. the second hand wheel (11) is rotated, the first rotating shaft (5) is driven to rotate through the speed changing device (10), the first rotating shaft (5) drives the second rotating shaft (6) to rotate through the spline (18),
the first pull rope (601) and the second pull rope (801) are respectively wound on the first wire roller (6) and the second wire roller (8) to further pull the first bending pipe (2) and the second bending pipe (3) to move towards the inner diameter adjusting device (4);
C. the cable (14) is extruded by the inner diameter adjusting device (4), the cable (14) contacted with the inner diameter adjusting device (4) is extruded to be semicircular, at the moment, the first folding pipe (2) moves to the end of the first slideway (101),
meanwhile, the sliding device (16) below the first bending pipe (2) pushes the second piston rod (1201), hydraulic oil in the second hydraulic cylinder (12) is pushed into the first hydraulic cylinder (9) through the hydraulic pipe (15), the first piston rod (901) is pushed to move towards the round rod (1801), the spline (18) is pushed out of the spline groove (701), and the first rotating shaft (5) cannot drive the second rotating shaft (7) to rotate,
the first rotating shaft (5) continues to rotate, so that the first pull rope (601) continues to pull the second bending pipe (3) to rotate 180 degrees around the center of the inner diameter adjusting device (4), and the cable (14) is bent into a complete circle along the arc-shaped side plate (402) of the inner diameter adjusting device (4);
D. after the cable (14) is bent, the inner diameter adjusting device (4) is taken down, and the first bent pipe (2) and the bent pipe (3) are reset manually, so that the bent cable (14) is separated from the high-altitude cable bending device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111614270.8A CN114453522B (en) | 2021-04-23 | 2021-04-23 | Cable bending method |
| CN202110443423.0A CN113118339B (en) | 2021-04-23 | 2021-04-23 | High-altitude cable bending device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110443423.0A CN113118339B (en) | 2021-04-23 | 2021-04-23 | High-altitude cable bending device |
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| CN202111614270.8A Division CN114453522B (en) | 2021-04-23 | 2021-04-23 | Cable bending method |
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| CN113118339A true CN113118339A (en) | 2021-07-16 |
| CN113118339B CN113118339B (en) | 2021-12-10 |
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| CN202111614270.8A Active CN114453522B (en) | 2021-04-23 | 2021-04-23 | Cable bending method |
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| CN115377926A (en) * | 2022-08-19 | 2022-11-22 | 西安空间无线电技术研究所 | Forming dimensional tool and method for satellite-borne high-power radio frequency cable assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4249405A (en) * | 1979-04-12 | 1981-02-10 | Robert Cyr | Wire or cable bending apparatus |
| CN205673417U (en) * | 2016-06-18 | 2016-11-09 | 江苏恒泽安装工程股份有限公司 | Portable swan neck system |
| CN106391920A (en) * | 2016-06-15 | 2017-02-15 | 国网冀北电力有限公司秦皇岛供电公司 | Cable bending tool |
| CN108941282A (en) * | 2018-06-04 | 2018-12-07 | 佛山市信智宇科技服务有限公司 | A kind of aluminum profile swan neck system |
| CN211437868U (en) * | 2019-11-20 | 2020-09-08 | 中建汇海有限公司 | Construction steel bar bending device |
| CN112191766A (en) * | 2020-09-22 | 2021-01-08 | 国网河南省电力公司武陟县供电公司 | Power cable bending tool |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006049089A (en) * | 2004-08-04 | 2006-02-16 | Tyco Electronics Amp Kk | Wire connector |
| DE102005047078B3 (en) * | 2005-09-30 | 2007-05-03 | Trumer Schutzbauten Gesmbh | Bending machine, in particular cable bending machine |
| CN105728592B (en) * | 2016-03-28 | 2017-12-01 | 深圳市金吉峰科技有限公司 | Flexible flat cable apparatus for bending and its processing method |
| CN110695144B (en) * | 2019-10-12 | 2021-01-05 | 黄山绩甲传动机械有限公司 | Bending equipment for plate processing |
-
2021
- 2021-04-23 CN CN202110443423.0A patent/CN113118339B/en active Active
- 2021-04-23 CN CN202111614270.8A patent/CN114453522B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4249405A (en) * | 1979-04-12 | 1981-02-10 | Robert Cyr | Wire or cable bending apparatus |
| CN106391920A (en) * | 2016-06-15 | 2017-02-15 | 国网冀北电力有限公司秦皇岛供电公司 | Cable bending tool |
| CN205673417U (en) * | 2016-06-18 | 2016-11-09 | 江苏恒泽安装工程股份有限公司 | Portable swan neck system |
| CN108941282A (en) * | 2018-06-04 | 2018-12-07 | 佛山市信智宇科技服务有限公司 | A kind of aluminum profile swan neck system |
| CN211437868U (en) * | 2019-11-20 | 2020-09-08 | 中建汇海有限公司 | Construction steel bar bending device |
| CN112191766A (en) * | 2020-09-22 | 2021-01-08 | 国网河南省电力公司武陟县供电公司 | Power cable bending tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114453522A (en) | 2022-05-10 |
| CN114453522B (en) | 2023-05-26 |
| CN113118339B (en) | 2021-12-10 |
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