CN110518492B - Highway crossing support frame for power grid construction - Google Patents
Highway crossing support frame for power grid construction Download PDFInfo
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- CN110518492B CN110518492B CN201910856629.9A CN201910856629A CN110518492B CN 110518492 B CN110518492 B CN 110518492B CN 201910856629 A CN201910856629 A CN 201910856629A CN 110518492 B CN110518492 B CN 110518492B
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- 238000010276 construction Methods 0.000 title claims abstract description 32
- 206010020649 Hyperkeratosis Diseases 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 241000606750 Actinobacillus Species 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000009418 renovation Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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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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Abstract
The invention discloses a highway crossing support frame for power grid construction, wherein a flat plate is arranged on one side of the upper part of a frame, a bottom plate is arranged on the upper part of the flat plate, a coaming is arranged on one side of the bottom plate, a first support rod is movably arranged at two ends of the coaming through a hinge, one end of a second hydraulic cylinder is movably connected with a connecting rod, and the other end of the second hydraulic cylinder is movably connected with the first support rod through a hinge joint; the second supporting rod is movably connected with the first connecting plate; one end of the third hydraulic cylinder is movably connected with the first supporting rod through a hinge joint, and the other end of the third hydraulic cylinder is movably connected with the second supporting rod through the hinge joint. The first support frame and the second support frame are arranged on the vehicle body, when the cable laying device is used, the first support frame is supported by the second hydraulic cylinder, and the second support frame is supported by the third hydraulic cylinder, so that the support frame can be quickly and efficiently erected, the cable construction efficiency is improved, the stability of the support frame is enhanced, and the personal safety of constructors and highway co-workers is guaranteed.
Description
Technical Field
The invention belongs to the technical field of electric power facilities, and particularly relates to a highway crossing support frame for power grid construction.
Background
The power transmission line crossing support frame is common equipment in the field of power construction. When a new power grid is erected or power grid temporary construction is carried out, a power transmission line often crosses a highway or an original communication line, and in order to complete a construction task of the power transmission line while keeping normal operation of road traffic, workers of a power system usually need to erect a power transmission line crossing support frame on the highway.
The support frame is erect to current power transmission line crossing support frame utilizes the scaffold frame generally in the both sides of highway, sets up the cable on the upper portion of support frame, and it has following defect: 1) the scaffold needs to be erected manually, the erecting efficiency is low, and the construction period of cable erection is long; 2) the stability of the scaffold is poor, and particularly when the height of the scaffold is high, the upper part of the scaffold shakes and even collapses, so that the personal safety of constructors and highway passers-by is threatened; when the cable is erected, the cable needs to be pulled, friction force is generated on the upper end of the scaffold by the cable, shaking of the scaffold is aggravated, and safety is low; 3) the cable between the scaffolds at two ends is bent under the action of self gravity, so that the supporting height of the cable is reduced, and the traffic safety of road vehicles is influenced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a highway crossing support frame for power grid construction.
In order to achieve the purpose, the invention adopts the technical scheme that:
a highway crossing support frame for power grid construction comprises a vehicle body, a first support frame and a second support frame, wherein the vehicle body comprises a frame and tires, a flat plate is arranged on one side of the upper part of the frame, and the tires are arranged on two sides of the frame, so that the highway crossing support frame for power grid construction can move conveniently; the first support frame comprises a bottom plate, a second hydraulic cylinder and a first support rod, the bottom plate is arranged on the upper portion of the flat plate, a surrounding plate is arranged on one side of the bottom plate, the first support rod is movably mounted at two ends of the surrounding plate through a hinge, one side of the upper portion of the bottom plate is connected with a connecting rod through a convex block, one end of the second hydraulic cylinder is movably connected with the connecting rod, and the other end of the second hydraulic cylinder is movably connected with the first support rod through a hinge joint; the second support frame comprises a second support rod and a third hydraulic cylinder, a first connecting plate is arranged at one end of the first support rod, and the second support rod is movably connected with the first connecting plate; one end of the third hydraulic cylinder is movably connected with the first supporting rod through a hinge joint, and the other end of the third hydraulic cylinder is movably connected with the second supporting rod through the hinge joint.
When the support frame is used, the piston rod of the second hydraulic cylinder extends to enable the first support frame to rotate around the hinge to be in a vertical state, then the piston rod of the third hydraulic cylinder extends to enable the second support frame to rotate around one end of the first connecting plate to be perpendicular to the first support frame, and the support frame is erected quickly; the second support frame has a supporting function on the cable, so that the cable is prevented from being bent, and the traffic safety of road vehicles is guaranteed; after the cable is erected, a piston rod of the third hydraulic cylinder contracts to enable the second support frame to rotate to be parallel to the first support frame, then the second hydraulic cylinder contracts to enable the first support frame to rotate to the upper portion of the vehicle body, and the support frame is stored.
As a further preference of the technical scheme, a traction frame is arranged on one side of the vehicle body, a towing hook is arranged at one end of the traction frame, the towing hook is connected with a towing vehicle, and the traction frame facilitates long-distance movement of the vehicle body; the automobile body both sides are equipped with a plurality of supporting legs, the supporting leg includes first pneumatic cylinder, callus on the sole, the automobile body both sides are connected with a plurality of sleeves, the inside cover of sleeve is equipped with flexible arm, callus on the sole and flexible arm lower end fixed connection, first pneumatic cylinder one end and sleeve fixed connection, the first pneumatic cylinder other end and callus on the sole fixed connection, when the support frame used, the piston rod extension of first pneumatic cylinder made callus on the sole and ground contact, had avoided the automobile body to remove, had strengthened the stability of support frame.
As a further preferred option of the technical solution, the first support rod and the second support rod are made of square steel with an opening at one side, a first telescopic frame is arranged inside the first support rod, guide rails are arranged on two sides inside the first support rod, a plurality of slide blocks are arranged on the first telescopic frame, and the slide blocks are mounted on the guide rails, so that the first telescopic frame can extend out and retract along the first support rod, which is convenient for adjusting the support height of the first support rod, thereby adjusting different height limiting states of the road; the inside second expansion bracket that is equipped with of second bracing piece, the inside both sides of second bracing piece are equipped with the guide rail, be equipped with a plurality of sliders on the second expansion bracket, the slider is installed on the guide rail for the second expansion bracket can stretch out and withdraw along the second bracing piece, is convenient for adjust the support width of second support frame, is applicable to the road crossing stringing of different widths.
As a further optimization of the technical scheme, a plurality of pedals are arranged on the first support rod, the second support rod, the first expansion bracket and the second expansion bracket, and when the support frame fails or a cable is in an accident, the pedals are convenient for constructors to climb the support frame for renovation; first support frame and second support frame both sides all are equipped with a plurality of locking device, locking device includes spanner, picture peg, pedal both ends are equipped with the breach, and the inside spanner that is equipped with of breach, spanner one side is connected with the picture peg, be equipped with the jack on first bracing piece and the second bracing piece, the picture peg is pegged graft inside the jack, and the picture peg has avoided first expansion bracket and/or second expansion bracket to stretch out the back accident and has withdrawed, has guaranteed the safety of cable erection, and when first expansion bracket and/or second expansion bracket need withdraw, pull the spanner, make the picture peg shrink to inside first bracing piece and/or the second bracing piece, accomodate first expansion bracket and/or second expansion bracket inside first bracing piece and/or second bracing piece.
As a further preferred option of this technical scheme, spanner one side is equipped with fixed stop, fixed stop installs inside the footboard, fixed stop passes through spring coupling with the spanner, and the elasticity of spring makes the picture peg grafting inside the jack, has avoided the picture peg accident to withdraw, has strengthened locking device's stability.
As a further preference of the technical scheme, a turntable is arranged on one side of the lower portion of the bottom plate, the turntable comprises a worm wheel and a worm which are meshed with each other, the worm wheel is installed in the first shell, the worm is installed in the second shell, one side of the worm wheel is connected with a first rotating shaft, a connecting flange is arranged at the upper end of the first rotating shaft, and the connecting flange is fixedly connected with the bottom plate; the worm is arranged on a second rotating shaft, two ends of the second rotating shaft are movably connected with the second shell through bearings, and one end of the second rotating shaft is provided with a hand wheel; the rotating angle of the bottom plate is adjusted by rotating the hand wheel, so that the support frame can be conveniently rotated, positioned and finely adjusted, and the smooth erection of cables is guaranteed.
As a further preference of the technical scheme, one side of the first support frame is provided with a pay-off device, the pay-off device comprises a second connecting plate, a third rotating shaft and a pay-off wheel, the second connecting plate is arranged on two sides of the second support rod and the upper end of the first support rod, two ends of the third rotating shaft are arranged on the second connecting plate, the pay-off wheel is provided with a plurality of groups, and the pay-off wheel is movably arranged on the third rotating shaft; the plurality of groups of wire laying wheels are convenient for erecting the multi-strand cables simultaneously; one side of one group of second connecting plates is provided with a motor support, one side of the motor support is provided with a motor, an output shaft of the motor is connected with a third rotating shaft, one end of the third rotating shaft is connected with a belt pulley, and adjacent belt pulleys are connected through a transmission belt; the cable is placed on actinobacillus wheel upper portion, and the motor drives the rotation of the epaxial actinobacillus wheel of third pivot, and the actinobacillus wheel has reduced the frictional force between cable and support, has improved the smooth and easy nature that the cable dragged, has reduced constructor's intensity of labour.
As a further preference of the technical scheme, a pressing device is arranged on one side of the pay-off device and comprises a fourth rotating shaft and a pressing wheel, the fourth rotating shaft is arranged on the upper portion of the third rotating shaft, the pressing wheel is arranged on the fourth rotating shaft, the position of the pressing wheel corresponds to that of the pay-off wheel, and the cable is clamped between the pay-off wheel and the pressing wheel by the pressing wheel, so that the cable is prevented from falling off; the pressing wheel is connected with the cable through the tension spring, and the tension of the tension spring enables the pressing wheel to be in contact with the cable all the time, so that the pressing effect of the cable is guaranteed.
As a further optimization of the technical scheme, a plurality of uniformly arranged shifting teeth are arranged on the pay-off wheel and the pressing wheel, the shifting teeth are made of anti-skid rubber, and the shifting teeth enhance the friction force between the pay-off wheel and the pressing wheel and the cable, so that the pay-off effect of the cable is enhanced.
As a further optimization of the technical scheme, a supporting plate is arranged on one side of the enclosing plate, a plurality of supporting blocks are arranged on the flat plate, when the first supporting frame is stored, the upper end of the supporting plate is in contact with the first supporting rod, the supporting blocks are in contact with the second connecting plate, the supporting plate supports the first supporting frame, the supporting blocks support the second supporting frame, the stress of the second hydraulic cylinder and the stress of the third hydraulic cylinder are reduced, and the service lives of the second hydraulic cylinder and the third hydraulic cylinder are prolonged.
The invention has the beneficial effects that:
1) set up first support frame and second support frame on the automobile body, utilize the second pneumatic cylinder to prop up first support frame during the use, utilize the third pneumatic cylinder to prop up the second support frame, setting up of support frame is accomplished to high efficiency, the efficiency of cable construction is improved, the stability of support frame has been strengthened, constructor and highway personnel's in the same vogue personal safety have been ensured, the second support frame plays the supporting role to the cable, avoided the cable to produce the bending, road vehicle's current safety has been ensured.
2) A traction frame is arranged on one side of the vehicle body, so that the vehicle body can move for a long distance conveniently; the automobile body both sides are equipped with a plurality of supporting legs, and when the support frame used, the piston rod extension of first pneumatic cylinder made callus on the sole and ground contact, had avoided the automobile body to remove, had strengthened the stability of support frame.
3) The first support rod and the second support rod are made of square steel with an opening at one side, a first telescopic frame is arranged in the first support rod and can extend out and retract along the first support rod, so that the support height of the first support frame can be conveniently adjusted, and different height limiting states of roads can be adjusted; the second telescopic frame is arranged inside the second supporting rod and can stretch out and retract along the second supporting rod, the supporting width of the second supporting frame is convenient to adjust, and the road crossing stringing with different widths is suitable.
4) The first support rod, the second support rod, the first expansion bracket and the second expansion bracket are provided with a plurality of pedals, and when the support frame breaks down or a cable is in accident, the pedals are convenient for constructors to climb the support frame for renovation; the first support frame and the second support frame are provided with a plurality of locking devices on two sides, the inserting plate avoids the situation that the first expansion bracket and/or the second expansion bracket extend out and then accidentally retracts, the safety of cable erection is guaranteed, when the first expansion bracket and/or the second expansion bracket need to retract, the spanner is pulled, the inserting plate retracts to the interior of the first support rod and/or the second support rod, and the first expansion bracket and/or the second expansion bracket are/is accommodated in the interior of the first support rod and/or the second support rod.
5) Spanner one side is equipped with fixed stop, and fixed stop installs inside the footboard, and fixed stop passes through spring coupling with the spanner, and the elasticity of spring makes the picture peg grafting inside the jack, has avoided the picture peg accident to withdraw, has strengthened locking device's stability.
6) One side of the lower part of the bottom plate is provided with a turntable, the rotating angle of the bottom plate is adjusted by rotating a hand wheel, the support frame is convenient to rotate, position and finely adjust, and smooth erection of cables is guaranteed.
7) A pay-off device is arranged on one side of the first support frame, a plurality of groups of pay-off wheels are arranged, and the pay-off wheels are movably arranged on a third rotating shaft; the plurality of groups of wire laying wheels are convenient for erecting the multi-strand cables simultaneously; an output shaft of the motor is connected with a third rotating shaft, one end of the third rotating shaft is connected with a belt pulley, and adjacent belt pulleys are connected through a transmission belt; the cable is placed on actinobacillus wheel upper portion, and the motor drives the rotation of the epaxial actinobacillus wheel of third pivot, and the actinobacillus wheel has reduced the frictional force between cable and support, has improved the smooth and easy nature that the cable dragged, has reduced constructor's intensity of labour.
8) A pressing device is arranged on one side of the pay-off device, a pressing wheel is arranged on the fourth rotating shaft, the pressing wheel corresponds to the pay-off wheel in position, and the cable is clamped between the pay-off wheel and the pressing wheel by the pressing wheel, so that the cable is prevented from falling off; be equipped with the adjustment tank on the second connecting plate, the fourth pivot is installed inside the adjustment tank, and third pivot both ends are equipped with first connecting block, and fourth pivot both ends are equipped with the second connecting block, and first connecting block passes through the extension spring with the second connecting block to be connected, and the pulling force of extension spring makes the pinch roller contact with the cable all the time, has guaranteed the effect that compresses tightly of cable.
9) All be equipped with a plurality of evenly arranged on actinobacillus wheel and the pinch roller and dial the tooth, dial the tooth and made by anti-skidding rubber, dial the tooth and strengthened the frictional force between actinobacillus wheel and pinch roller and the cable to the unwrapping wire effect of cable has been strengthened.
10) The utility model discloses a pneumatic device, including bounding wall, supporting shoe, second connecting plate, supporting shoe, second pneumatic cylinder, supporting shoe, second connecting plate, supporting shoe, second pneumatic cylinder, third pneumatic cylinder, the life of second pneumatic cylinder and third pneumatic cylinder has been prolonged to bounding wall one side is equipped with the backup pad, is equipped with a plurality of supporting shoes on the flat board, and when first supporting shoe was accomodate, the backup pad upper end contacted with first supporting shoe, and the supporting shoe contacted with the second connecting.
Drawings
Fig. 1 is a schematic diagram of a highway crossing support frame for power grid construction.
Fig. 2 is a schematic structural diagram of a vehicle body in the highway crossing support frame for power grid construction.
Fig. 3 is a schematic view of the internal structure of a support leg in the highway crossing support frame for power grid construction.
Fig. 4 is a storage state diagram of a first support frame and a second support frame in the highway crossing support frame for power grid construction.
Fig. 5 is a use state diagram of a first support frame and a second support frame in the highway crossing support frame for power grid construction.
Fig. 6 is a schematic diagram of the internal structure of a turntable in a highway crossing support frame for power grid construction.
Fig. 7 is a schematic structural view of a defensive line device in a highway crossing support frame for power grid construction.
Fig. 8 is a partial schematic view of a first support frame of the highway crossing support frame for power grid construction according to the present invention.
Fig. 9 is a partial schematic view of the other side of the first support frame in the highway crossing support frame for power grid construction according to the invention.
Fig. 10 is a schematic structural view of a locking device in a highway crossing support frame for power grid construction.
Fig. 11 is a partially enlarged schematic view of a road crossing support frame for power grid construction according to the present invention.
In the figure: 1. a vehicle body; 11. a frame; 12. a flat plate; 13. a tire; 14. a support block; 15. a traction frame; 16. towing hooks; 17. supporting legs; 171. a first hydraulic cylinder; 172. a foot pad; 173. a sleeve; 174. a telescopic arm; 2. a turntable; 21. a first housing; 22. a second housing; 23. a worm gear; 24. a worm; 25. a first rotating shaft; 26. a second rotating shaft; 27. a connecting flange; 28. a hand wheel; 3. a first support frame; 31. a base plate; 32. a second hydraulic cylinder; 33. enclosing plates; 34. a first support bar; 35. a first telescopic frame; 36. a guide rail; 37. a slider; 38. pedaling; 39. a support plate; 40. a connecting rod; 4. a second support frame; 41. a second support bar; 42. a second telescopic frame; 43. a third hydraulic cylinder; 44. a first connecting plate; 51. a second connecting plate; 52. a motor; 53. a third rotating shaft; 54. a motor bracket; 55. a paying-off wheel; 56. shifting teeth; 57. a belt pulley; 58. a transmission belt; 6. a pressing device; 61. an adjustment groove; 62. a first connection block; 63. a second connecting block; 64. a tension spring; 65. a fourth rotating shaft; 66. a pinch roller; 7. a locking device; 71. fixing a baffle plate; 72. a spring; 73. a wrench; 74. inserting plates;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 11, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
A highway crossing support frame for power grid construction comprises a vehicle body 1, a first support frame 3 and a second support frame 4, wherein the vehicle body 1 comprises a vehicle frame 11 and tires 13, a flat plate 12 is arranged on one side of the upper part of the vehicle frame 11, and the tires 13 are arranged on two sides of the vehicle frame 11, so that the highway crossing support frame for power grid construction can move conveniently; the first support frame 3 comprises a bottom plate 31, a second hydraulic cylinder 32 and a first support rod 34, the bottom plate 31 is arranged on the upper portion of the flat plate 12, a surrounding plate 33 is arranged on one side of the bottom plate 31, the first support rod 34 is movably mounted at two ends of the surrounding plate 33 through hinges, a connecting rod 40 is connected to one side of the upper portion of the bottom plate 31 through a convex block, one end of the second hydraulic cylinder 32 is movably connected with the connecting rod 40, and the other end of the second hydraulic cylinder 32 is movably connected with the first support rod 34 through a hinge joint; the second support frame 4 comprises a second support rod 41 and a third hydraulic cylinder 43, a first connecting plate 44 is arranged at one end of the first support rod 34, and the second support rod 41 is movably connected with the first connecting plate 44; one end of the third hydraulic cylinder 43 is movably connected with the first support rod 34 through a hinge joint, and the other end of the third hydraulic cylinder 43 is movably connected with the second support rod 41 through a hinge joint.
When the support frame is used, the piston rod of the second hydraulic cylinder 32 extends to enable the first support frame 3 to rotate around the hinge to be in a vertical state, then the piston rod of the third hydraulic cylinder 43 extends to enable the second support frame 4 to rotate around one end of the first connecting plate 44 to be perpendicular to the first support frame 3, and therefore the support frame is erected rapidly; the second support frame 4 has a supporting function on the cable, so that the cable is prevented from being bent, and the passing safety of road vehicles is guaranteed; after the cable is erected, the piston rod of the third hydraulic cylinder 43 is contracted to enable the second support frame 4 to rotate to be parallel to the first support frame 3, then the second hydraulic cylinder 32 is contracted to enable the first support frame 3 to rotate to the upper portion of the vehicle body 1, and the storage of the support frames is completed.
In this embodiment, a traction frame 15 is arranged on one side of the vehicle body 1, a towing hook 16 is arranged at one end of the traction frame 15, the towing hook 16 is connected with a towing vehicle, and the traction frame 15 facilitates long-distance movement of the vehicle body 1; 1 both sides of automobile body are equipped with a plurality of supporting legs 17, supporting leg 17 includes first pneumatic cylinder 171, callus on the sole 172, 1 both sides of automobile body are connected with a plurality of sleeves 173, the inside cover of sleeve 173 is equipped with flexible arm 174, callus on the sole 172 and flexible arm 174 lower extreme fixed connection, first pneumatic cylinder 171 one end and sleeve 173 fixed connection, the first pneumatic cylinder 171 other end and callus on the sole 172 fixed connection, when the support frame used, the piston rod extension of first pneumatic cylinder 171 made callus on the sole 172 and ground contact, had avoided automobile body 1 to remove, had strengthened the stability of support frame.
In this embodiment, the first support rod 34 and the second support rod 41 are made of square steel with an opening on one side, a first telescopic frame 35 is arranged inside the first support rod 34, guide rails 36 are arranged on two sides inside the first support rod 34, a plurality of sliding blocks 37 are arranged on the first telescopic frame 35, and the sliding blocks 37 are mounted on the guide rails 36, so that the first telescopic frame 35 can extend out and retract along the first support rod 34, which is convenient for adjusting the support height of the first support frame 3, thereby adjusting different height limiting states of roads; the inside second expansion bracket 42 that is equipped with of second bracing piece 41, the inside both sides of second bracing piece 41 are equipped with guide rail 36, be equipped with a plurality of sliders 37 on the second expansion bracket 42, slider 37 installs on guide rail 36 for second expansion bracket 42 can stretch out and withdraw along second bracing piece 41, is convenient for adjust the support width of second support frame 4, is applicable to the road crossing stringing of different widths.
In this embodiment, the first support rod 34, the second support rod 41, the first expansion bracket 35 and the second expansion bracket 42 are provided with a plurality of pedals 38, and when the support frame fails or a cable is in an accident, the pedals 38 are convenient for a constructor to climb the support frame for renovation; first support frame 3 and 4 both sides of second support frame all are equipped with a plurality of locking device 7, locking device 7 includes spanner 73, picture peg 74, pedal 38 both ends are equipped with the breach, and the inside spanner 73 that is equipped with of breach, spanner 73 one side is connected with picture peg 74, be equipped with the jack on first bracing piece 34 and the second bracing piece 41, picture peg 74 pegs graft inside the jack, and picture peg 74 has avoided first expansion bracket 35 and/or second expansion bracket 42 to stretch out the back accident and has withdrawed, has guaranteed the safety of cable erection, and when first expansion bracket 35 and/or second expansion bracket 42 need withdraw, pull spanner 73, make picture peg 74 shrink to first bracing piece 34 and/or second bracing piece 41 inside, accomodate first expansion bracket 35 and/or second expansion bracket 42 inside first bracing piece 34 and/or second bracing piece 41.
In this embodiment, a fixing baffle 71 is arranged on one side of the wrench 73, the fixing baffle 71 is installed inside the pedal, the fixing baffle 71 is connected with the wrench 73 through a spring 72, and the elastic force of the spring 72 enables the insertion plate 74 to be inserted into the insertion hole, so that the insertion plate 74 is prevented from being accidentally withdrawn, and the stability of the locking device 7 is enhanced.
In this embodiment, a turntable 2 is disposed on one side of a lower portion of the bottom plate 31, the turntable 2 includes a worm wheel 23 and a worm 24 that are engaged with each other, the worm wheel 23 is mounted inside the first housing 21, the worm 24 is mounted inside the second housing 22, one side of the worm wheel 23 is connected to a first rotating shaft 25, an upper end of the first rotating shaft 25 is provided with a connecting flange 27, and the connecting flange 27 is fixedly connected to the bottom plate 31; the worm 24 is installed on a second rotating shaft 26, two ends of the second rotating shaft 26 are movably connected with the second shell 22 through bearings, and one end of the second rotating shaft 26 is provided with a hand wheel 28; the rotating angle of the bottom plate 31 is adjusted by rotating the hand wheel 28, so that the support frame can be conveniently rotated, positioned and finely adjusted, and the cable erection is ensured to be smoothly carried out.
In this embodiment, a paying-off device is arranged on one side of the first support frame 3, the paying-off device includes a second connecting plate 51, a third rotating shaft 53 and a paying-off wheel 55, the second connecting plate 51 is installed on two sides of the second support rod 41 and the upper end of the first support rod 34, two ends of the third rotating shaft 53 are installed on the second connecting plate 51, the paying-off wheel 55 is provided with a plurality of groups, and the paying-off wheel 55 is movably installed on the third rotating shaft 53; the sets of the wire unwinding wheels 55 facilitate simultaneous erection of the multi-strand cables; one side of one group of the second connecting plates 51 is provided with a motor bracket 54, one side of the motor bracket 54 is provided with a motor 52, an output shaft of the motor 52 is connected with a third rotating shaft 53, one end of the third rotating shaft 53 is connected with a belt pulley 57, and adjacent belt pulleys 57 are connected through a transmission belt 58; the cable is placed on actinobacillus wheel 55 upper portion, and motor 52 drives the rotation of actinobacillus wheel 55 on the third pivot 53, and actinobacillus wheel 55 has reduced the frictional force between cable and the carriage, has improved the smooth and easy nature that the cable dragged, has reduced constructor's intensity of labour.
In this embodiment, a pressing device 6 is arranged on one side of the pay-off device, the pressing device 6 includes a fourth rotating shaft 65 and a pressing wheel 66, the fourth rotating shaft 65 is installed on the upper portion of the third rotating shaft 53, the pressing wheel 66 is installed on the fourth rotating shaft 65, the position of the pressing wheel 66 corresponds to that of the pay-off wheel 55, and the pressing wheel 66 clamps the cable between the pay-off wheel 55 and the pressing wheel 66, so that the cable is prevented from falling off; be equipped with adjustment tank 61 on the second connecting plate 51, fourth pivot 65 is installed inside adjustment tank 61, third pivot 53 both ends are equipped with first connecting block 62, fourth pivot 65 both ends are equipped with second connecting block 63, first connecting block 62 is connected through extension spring 64 with second connecting block 63, and the pulling force of extension spring 64 makes pinch roller 66 contact with the cable all the time, has guaranteed the effect that compresses tightly of cable.
In this embodiment, the paying-off wheel 55 and the pressing wheel 66 are both provided with a plurality of uniformly arranged shifting teeth 56, the shifting teeth 56 are made of anti-slip rubber, and the shifting teeth 56 enhance the friction force between the paying-off wheel 55 and the pressing wheel 66 and the cable, so that the paying-off effect of the cable is enhanced.
In this embodiment, a supporting plate 39 is disposed on one side of the enclosing plate 33, a plurality of supporting blocks 14 are disposed on the flat plate 12, when the first supporting frame 3 is stored, the upper end of the supporting plate 39 contacts with the first supporting rod 34, the supporting blocks 14 contact with the second connecting plate 51, the supporting plate 39 supports the first supporting frame 3, the supporting blocks 14 support the second supporting frame 4, stress of the second hydraulic cylinder 32 and the third hydraulic cylinder 43 is reduced, and service lives of the second hydraulic cylinder 32 and the third hydraulic cylinder 43 are prolonged.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (6)
1. A highway crossing support frame for power grid construction comprises a vehicle body, a first support frame and a second support frame, wherein the vehicle body comprises a vehicle frame and tires, a flat plate is arranged on one side of the upper part of the vehicle frame, and the tires are arranged on two sides of the vehicle frame, so that the support frame can move conveniently; the support structure is characterized in that the first support frame comprises a bottom plate, a second hydraulic cylinder and a first support rod, the bottom plate is arranged on the upper portion of a flat plate, a surrounding plate is arranged on one side of the bottom plate, the first support rod is movably mounted at two ends of the surrounding plate through hinges, one side of the upper portion of the bottom plate is connected with a connecting rod through a convex block, one end of the second hydraulic cylinder is movably connected with the connecting rod, and the other end of the second hydraulic cylinder is movably connected with the first support rod through a hinge joint; the second support frame comprises a second support rod and a third hydraulic cylinder, a first connecting plate is arranged at one end of the first support rod, and the second support rod is movably connected with the first connecting plate; one end of the third hydraulic cylinder is movably connected with the first support rod through a hinge joint, and the other end of the third hydraulic cylinder is movably connected with the second support rod through the hinge joint; a pay-off device is arranged on one side of the first support frame and comprises second connecting plates, third rotating shafts and pay-off wheels, the second connecting plates are mounted on two sides of the second support rod and the upper end of the first support rod, two ends of each third rotating shaft are mounted on the second connecting plates, the pay-off wheels are provided with a plurality of groups, and the pay-off wheels are movably mounted on the third rotating shafts; one side of one group of second connecting plates is provided with a motor support, one side of the motor support is provided with a motor, an output shaft of the motor is connected with a third rotating shaft, one end of the third rotating shaft is connected with a belt pulley, and adjacent belt pulleys are connected through a transmission belt; the cable is placed on the upper part of the paying-off wheel; a pressing device is arranged on one side of the pay-off device and comprises a fourth rotating shaft and a pressing wheel, the fourth rotating shaft is arranged on the upper portion of the third rotating shaft, the pressing wheel is arranged on the fourth rotating shaft, and the position of the pressing wheel corresponds to that of the pay-off wheel; an adjusting groove is formed in the second connecting plate, the fourth rotating shaft is installed inside the adjusting groove, first connecting blocks are arranged at two ends of the third rotating shaft, second connecting blocks are arranged at two ends of the fourth rotating shaft, and the first connecting blocks are connected with the second connecting blocks through tension springs; the first support rod and the second support rod are made of square steel with an opening at one side, a first telescopic frame is arranged inside the first support rod, guide rails are arranged on two sides inside the first support rod, a plurality of sliding blocks are arranged on the first telescopic frame, and the sliding blocks are arranged on the guide rails; a second telescopic frame is arranged in the second support rod, guide rails are arranged on two sides in the second support rod, a plurality of sliding blocks are arranged on the second telescopic frame, and the sliding blocks are arranged on the guide rails; the first support rod, the second support rod, the first telescopic frame and the second telescopic frame are provided with a plurality of pedals; first support frame and second support frame both sides all are equipped with a plurality of locking device, locking device includes spanner, picture peg, pedal both ends are equipped with the breach, and the inside spanner that is equipped with of breach, spanner one side is connected with the picture peg, be equipped with the jack on first bracing piece and the second bracing piece, the picture peg is pegged graft inside the jack.
2. The highway crossing support frame for power grid construction according to claim 1, wherein a traction frame is arranged on one side of the vehicle body, a towing hook is arranged at one end of the traction frame, and the towing hook is connected with a towing vehicle; the automobile body both sides are equipped with a plurality of supporting legs, the supporting leg includes first pneumatic cylinder, callus on the sole, the automobile body both sides are connected with a plurality of sleeves, the inside cover of sleeve is equipped with flexible arm, callus on the sole and flexible arm lower end fixed connection, first pneumatic cylinder one end and sleeve fixed connection, the first pneumatic cylinder other end and callus on the sole fixed connection.
3. The road crossing support frame for power grid construction as claimed in claim 1, wherein a fixing baffle is arranged on one side of the wrench, the fixing baffle is mounted inside the pedal, and the fixing baffle is connected with the wrench through a spring.
4. The highway crossing support frame for power grid construction as claimed in claim 1, wherein a turntable is arranged on one side of the lower portion of the bottom plate, the turntable comprises a worm wheel and a worm which are meshed with each other, the worm wheel is installed in a first shell, the worm is installed in a second shell, a first rotating shaft is connected to one side of the worm wheel, a connecting flange is arranged at the upper end of the first rotating shaft, and the connecting flange is fixedly connected with the bottom plate; the worm is installed in the second pivot, second pivot both ends pass through bearing and second casing swing joint, second pivot one end is equipped with the hand wheel.
5. The highway crossing bracing frame for power grid construction according to claim 1, wherein a plurality of uniformly arranged shifting teeth are arranged on the paying-off wheel and the pressing wheel, and the shifting teeth are made of anti-skid rubber.
6. A road crossing support frame for power grid construction as claimed in claim 1, wherein a support plate is provided on one side of the enclosure, a plurality of support blocks are provided on the plate, the first support frame is received with the upper end of the support plate in contact with the first support bar, and the support blocks are in contact with the second connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910856629.9A CN110518492B (en) | 2019-09-11 | 2019-09-11 | Highway crossing support frame for power grid construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910856629.9A CN110518492B (en) | 2019-09-11 | 2019-09-11 | Highway crossing support frame for power grid construction |
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| CN110518492A CN110518492A (en) | 2019-11-29 |
| CN110518492B true CN110518492B (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910856629.9A Active CN110518492B (en) | 2019-09-11 | 2019-09-11 | Highway crossing support frame for power grid construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112186637B (en) * | 2020-09-21 | 2021-09-14 | 国网山东省电力公司齐河县供电公司 | Cable crossing device for power construction |
| CN115133457B (en) * | 2022-07-20 | 2024-04-12 | 国网青海省电力公司西宁供电公司 | Obstacle crossing device for power transmission line erection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0767216B2 (en) * | 1991-08-13 | 1995-07-19 | 株式会社関電工 | Sag control Overground wire replacement method |
| CN103996992B (en) * | 2014-04-29 | 2017-01-18 | 国家电网公司 | Mobile quick crossing frame |
| GB2558231B (en) * | 2016-12-22 | 2021-12-08 | Balfour Beatty Plc | Method and apparatus for deploying a supporting net when replacing overhead conductors |
| CN106986240B (en) * | 2017-05-11 | 2018-01-30 | 安徽理工大学 | A kind of electronic three tunnels synchronization take-up and pay-off device |
| CN108233258B (en) * | 2018-03-01 | 2023-12-22 | 国网湖北省电力公司咸宁供电公司 | Vehicle-mounted movable integrated spanning frame and application method thereof |
| CN110137857B (en) * | 2019-06-28 | 2024-04-30 | 沈阳建筑大学 | Vehicle-mounted rotatable stretching type electric power crossing frame |
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