CN215378267U - Braking device for laying ultrahigh-voltage power cable in high-fall shaft - Google Patents
Braking device for laying ultrahigh-voltage power cable in high-fall shaft Download PDFInfo
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- CN215378267U CN215378267U CN202121680219.2U CN202121680219U CN215378267U CN 215378267 U CN215378267 U CN 215378267U CN 202121680219 U CN202121680219 U CN 202121680219U CN 215378267 U CN215378267 U CN 215378267U
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Abstract
The utility model discloses a braking device for laying an ultrahigh-voltage power cable in a high-fall shaft, which solves the technical problems of complex design and installation, high construction risk and higher cost of a sky anchor in the prior art. The utility model comprises a plurality of supporting frames and a cable braking mechanism; the cable braking mechanism comprises a first combined flange, a second combined flange and a third combined flange used for generating friction braking with the cable outer sheath, and the supporting frames are equidistantly distributed along the cable travel path during cable laying operation. According to the utility model, the cable is arranged in the three flanges in a penetrating manner, and the inner wall of the rubber flange and the outer sheath of the cable are used for generating friction braking, so that the uniform stress of the cable can be effectively ensured, and the cable damage caused by overlarge local stress of the cable can be avoided. Meanwhile, the principle is clear and simple, the manufacturing cost is low, the assembly efficiency is high, the safety and the efficiency of laying the ultrahigh-voltage power cable of the high-fall shaft can be effectively ensured, and the economic benefit of construction is improved.
Description
Technical Field
The utility model belongs to the technical field of cable laying equipment, and particularly relates to a braking device for laying an ultrahigh-voltage power cable in a high-fall shaft.
Background
In the operation of laying the ultrahigh-voltage power cable in the high-drop shaft, the cable has large diameter and long length, and the whole dead weight is heavy, so that the cable can automatically slide down under the action of gravity, and if a braking measure is not taken, the gravity which causes the cable to slide down is offset, and the cable laying process can lose control because the cable automatically slides down under the action of gravity.
When a braking measure is adopted to counteract the gravity causing the cable to slide down in the laying operation of the ultrahigh-voltage power cable of the high-drop shaft, the bearing capacity of the cable needs to be considered, the gravity of the braking counteracting cable cannot be concentrated on a certain point of the cable, otherwise, the cable is damaged due to the fact that the local stress of the cable is too large, and therefore the braking measure must be uniformly distributed on the cable when the gravity causing the cable to slide down is counteracted.
At present, when a high-drop shaft ultrahigh-voltage power cable is laid, a traditional gravity braking measure for counteracting the cable slip is generally to install a sky anchor at the top of a shaft, the sky anchor acts on the cable in a segmented mode through a winch, a steel wire rope and a steel wire mesh sleeve to form a braking effect, the design and installation technology of the sky anchor used by the traditional gravity braking measure for counteracting the cable slip are extremely complex, the construction safety risk is high, the requirement on the operation synchronization of the winch in the cable laying process is high, and the cost of the braking measure is high.
Therefore, it is an urgent need to solve the above technical problems by designing a braking device for laying an extra-high voltage power cable in a high-drop shaft to solve at least some of the above technical problems.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a braking device is used in laying of superhigh pressure power cable in high fall shaft to solve above-mentioned some technical problem at least.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a braking device for laying an ultrahigh-voltage power cable in a high-drop shaft comprises a plurality of supporting frames and a cable braking mechanism, wherein the supporting frames are arranged on the inner wall of the shaft; the cable braking mechanism comprises a first combined flange connected with the support frame, a second combined flange connected with the first combined flange, and a third combined flange clamped between the first combined flange and the second combined flange and used for generating friction braking with the cable outer sheath, and the support frame is equidistantly distributed along a cable stroke path during cable laying operation.
Furthermore, first combination formula flange includes half first flange arc spare and half second flange arc spare, and half first flange arc spare one end and half second flange arc spare one end are articulated each other, and half first flange arc spare other end can be dismantled with half second flange arc spare other end and be connected.
Furthermore, a first hinge hole is formed in one end of the first half flange arc piece, a second hinge hole matched with the first hinge hole is formed in one end of the second half flange arc piece, and one end of the first half flange arc piece and one end of the second half flange arc piece are arranged in the first hinge hole and the second hinge hole in a penetrating mode through the hinge bolt and hinged to each other.
Furthermore, the other end of the first half flange arc piece protrudes outwards to form a first locking plate, a first locking hole is formed in the first locking plate, the other end of the second half flange arc piece protrudes outwards to form a second locking plate, a second locking hole matched with the first locking hole is formed in the second locking plate, and the other end of the first half flange arc piece and the other end of the second half flange arc piece penetrate through the first locking hole and the second locking hole through the first locking bolt to be detachably connected.
Furthermore, the second combined flange comprises a third half flange arc piece and a fourth half flange arc piece, one end of the third half flange arc piece is hinged with one end of the fourth half flange arc piece, and the other end of the third half flange arc piece is detachably connected with the other end of the fourth half flange arc piece.
Furthermore, a third hinge hole is formed in one end of the third half-flange arc piece, a fourth hinge hole matched with the third hinge hole is formed in one end of the fourth half-flange arc piece, and one end of the third half-flange arc piece and one end of the fourth half-flange arc piece are hinged to each other in the third hinge hole and the fourth hinge hole in a penetrating mode through the hinge bolts.
Furthermore, a third locking plate protrudes outwards from the other end of the third half flange arc piece, a third locking hole is formed in the third locking plate, a fourth locking plate protrudes outwards from the other end of the fourth half flange arc piece, a fourth locking hole matched with the third locking hole is formed in the fourth locking plate, and the other end of the third half flange arc piece and the other end of the fourth half flange arc piece penetrate through the second locking bolt to be arranged in the third locking hole and the fourth locking hole to be locked.
Furthermore, the third combined flange comprises a fifth half flange arc piece and a sixth half flange arc piece, the fifth half flange arc piece is clamped between the first half flange arc piece and the third half flange arc piece, the sixth half flange arc piece is clamped between the second half flange arc piece and the fourth half flange arc piece, and the fifth half flange arc piece and the sixth half flange arc piece are both made of rubber.
Furthermore, a plurality of bolt holes are formed in the first half flange arc piece, the third half flange arc piece and the fifth half flange arc piece, and the first half flange arc piece, the third half flange arc piece and the fifth half flange arc piece are fastened through first flange bolts;
a plurality of bolt holes are formed in the second half flange arc piece, the fourth half flange arc piece and the sixth half flange arc piece, and the second half flange arc piece, the fourth half flange arc piece and the sixth half flange arc piece are fastened through second flange bolts.
Furthermore, the support frame includes two A-frame that distribute side by side, is equipped with the shackle on the A-frame, is connected with wire rope on the shackle, all is equipped with rings on first half flange arc spare and the second half flange arc spare, and the wire rope lower extreme is fixed in on the rings.
Compared with the prior art, the utility model has the following beneficial effects:
the braking device for cable laying is simple in structure, scientific and reasonable in design and convenient to use, the braking device for cable laying is installed on the route of cable travel at equal intervals during cable laying operation, cables are arranged in the three flanges in a penetrating mode, friction braking is generated by the inner walls of the rubber flanges and the outer sheaths of the cables, the uniform stress of the cables can be effectively guaranteed, and the cables are prevented from being damaged due to overlarge local stress of the cables. Meanwhile, the principle is clear and simple, the manufacturing cost is low, the assembly efficiency is high, the safety and the efficiency of laying the ultrahigh-voltage power cable of the high-fall shaft can be effectively ensured, and the economic benefit of construction is improved.
The utility model mainly comprises a support frame and a cable braking mechanism, wherein the cable braking mechanism comprises a first combined flange, a second combined flange and a third combined flange, the support frame is arranged on the inner wall of a vertical shaft and is equidistantly distributed on the route of cable travel during cable laying operation for supporting the cable braking mechanism, the third combined flange is clamped between the first combined flange and the second combined flange, when in use, a cable sequentially passes through the first combined flange, the third combined flange and the second combined flange, the gravity which causes the cable to slide downwards can be effectively counteracted by utilizing the friction braking generated between the inner wall of the third combined flange and the outer sheath of the cable, the gravity is evenly distributed on the cable, the situation that the cable is damaged due to overlarge local stress of the cable can not be caused, the cable braking device has simple structure, convenient and efficient assembly, good effect of counteracting dead weight and sliding of the cable, and can effectively improve the cable laying operation efficiency, and the cost of auxiliary cost of cable laying operation is reduced.
The third combined flange comprises a fifth half flange arc piece and a sixth half flange arc piece, wherein the fifth half flange arc piece is provided with a plurality of bolt holes, the fifth half flange arc piece is fastened and clamped between the first half flange arc piece and the third half flange arc piece through a plurality of first flange bolts, and the first half flange arc piece, the third half flange arc piece and the fifth half flange arc piece are fixed into a three-five half flange whole; and a plurality of bolt holes are formed in the sixth half flange arc piece, the sixth half flange arc piece is tightly clamped between the second half flange arc piece and the fourth half flange arc piece through a plurality of second flange bolts, the second half flange arc piece, the fourth half flange arc piece and the sixth half flange arc piece are fixed into a whole of two, four and half flanges, one ends of the two whole bodies are hinged, and the other ends of the two whole bodies are detachably connected through locking bolts. When the cable braking mechanism is required to be assembled on a cable, the first locking bolt and the second locking bolt are disassembled, the first half-flange, the third half-flange, the fifth half-flange and the second half-flange are integrally broken off, the cable is located between the first half-flange, the third half-flange, the fifth half-flange, the fourth half-flange and the sixth half-flange, the first locking bolt and the second locking bolt are installed, the whole assembling process is very simple, convenient and efficient, the fifth half-flange arc part and the sixth half-flange arc part are made of rubber materials, and the fact that the cable gravity can be offset by friction force generated between the third combined flange and the cable outer sheath can be effectively guaranteed.
The first combined flange comprises a first half flange arc piece and a second half flange arc piece, one end of each of the first half flange arc piece and the second half flange arc piece is provided with a hinge hole and is hinged through a hinge bolt, the other end of each of the first half flange arc piece and the second half flange arc piece is provided with a locking plate, the locking plate is provided with a locking hole, and the other ends of the first half flange arc piece and the second half flange arc piece are locked through a locking bolt. And the first half flange arc piece and the second half flange arc piece are provided with a plurality of bolt holes for being connected with the third half flange arc piece, the fourth half flange arc piece, the fifth half flange arc piece and the sixth half flange arc piece. And the top surfaces of the first half flange arc piece and the second half flange arc piece are provided with lifting rings for being mounted on the supporting frame.
The second combined flange comprises a third half flange arc piece and a fourth half flange arc piece, one end of each of the third half flange arc piece and the fourth half flange arc piece is provided with a hinge hole and is hinged through a hinge bolt, the other end of each of the third half flange arc piece and the fourth half flange arc piece is provided with a locking plate, the locking plate is provided with a locking hole, and the other ends of the third half flange arc piece and the fourth half flange arc piece are locked through locking bolts. And a plurality of bolt holes are formed in the third half flange arc piece and the fourth half flange arc piece and are used for being connected with the first half flange arc piece, the second half flange arc piece, the fifth half flange arc piece and the sixth half flange arc piece.
The support frame comprises two triangular supports which are distributed side by side, each triangular support is provided with a shackle, each shackle is connected with a steel wire rope, each of the first half flange arc piece and the second half flange arc piece is provided with a hanging ring, the lower end of each steel wire rope is fixed on each hanging ring, a cable braking mechanism can be effectively guaranteed to be stably hung on each triangular support, the first half flange, the second half flange and the fourth half flange are respectively corresponding to one steel wire rope, and the first half flange, the second half flange and the fourth half flange can be conveniently detached.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a top view of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 1.
Fig. 4 is a schematic view of a first half flange arc and a second half flange arc of the present invention.
Fig. 5 is a side view of a first or third half flange segment of the present invention.
FIG. 6 is a side view of the second or fourth half-flange arcs of the utility model
Fig. 7 is a schematic view of a third half-flange arc and a fourth half-flange arc of the present invention.
Fig. 8 is a schematic view of a fifth half-flange arc member and a sixth half-flange arc member of the present invention.
Fig. 9 is a schematic view of the utility model assembled into a shaft and jacketed over a cable.
Fig. 10 is a top view of the utility model assembled into a hoistway and sleeved over a cable.
Wherein, the names corresponding to the reference numbers are:
1-a first half flange arc piece, 2-a second half flange arc piece, 3-a first hinge hole, 4-a second hinge hole, 5-a first locking plate, 6-a first locking hole, 7-a second locking plate, 8-a second locking hole, 9-a first locking bolt, 10-a hinge bolt, 11-a third half flange arc piece, 12-a fourth half flange arc piece, 13-a third hinge hole, 14-a fourth hinge hole, 15-a third locking plate, 16-a third locking hole, 17-a fourth locking plate, 18-a fourth locking hole, 19-a second locking bolt, 20-a fifth half flange arc piece, 21-a sixth half flange arc piece, 22-a first flange bolt, 23-a second flange bolt, 24-a vertical shaft, 25-a triangular support, 26-a first combined flange, 27-a second combined flange, 28-a cable, 29-a third combined flange, 30-a shackle, 31-a steel wire rope and 32-a lifting ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. 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.
As shown in figures 1-10, the braking device for laying the ultrahigh-voltage power cable in the high-fall shaft, provided by the utility model, has the advantages of simple structure, scientific and reasonable design and convenience in use, the braking device for laying the cable is installed at equal intervals in the cable travel way during cable laying operation, the cable is arranged in the three flanges in a penetrating manner, and the inner walls of the rubber flanges and the outer sheath of the cable are adopted to generate friction braking, so that the uniform stress of the cable can be effectively ensured, and the cable is prevented from being damaged due to overlarge local stress of the cable. Meanwhile, the principle is clear and simple, the manufacturing cost is low, the assembly efficiency is high, the safety and the efficiency of laying the ultrahigh-voltage power cable of the high-fall shaft can be effectively ensured, and the economic benefit of construction is improved. The utility model comprises a plurality of supporting frames arranged on the inner wall of the vertical shaft 24 and a cable braking mechanism arranged on the supporting frames; the cable braking mechanism comprises a first combined flange 26 connected with the support frame, a second combined flange 27 connected with the first combined flange 26, and a third combined flange 29 clamped between the first combined flange 26 and the second combined flange 27 and used for generating friction braking with an outer sheath of a cable 28, wherein the support frame is equidistantly distributed along a cable stroke path during cable laying operation.
The utility model mainly comprises a support frame and a cable braking mechanism, wherein the cable braking mechanism comprises a first combined flange, a second combined flange and a third combined flange, the support frame is arranged on the inner wall of a vertical shaft and is equidistantly distributed on the route of cable travel during cable laying operation for supporting the cable braking mechanism, the third combined flange is clamped between the first combined flange and the second combined flange, when in use, a cable sequentially passes through the first combined flange, the third combined flange and the second combined flange, the gravity which causes the cable to slide downwards can be effectively counteracted by utilizing the friction braking generated between the inner wall of the third combined flange and the outer sheath of the cable, the gravity is evenly distributed on the cable, the situation that the cable is damaged due to overlarge local stress of the cable can not be caused, the cable braking device has simple structure, convenient and efficient assembly, good effect of counteracting dead weight and sliding of the cable, and can effectively improve the cable laying operation efficiency, and the cost of auxiliary cost of cable laying operation is reduced.
The first combined flange 26 comprises a first half flange arc part 1 and a second half flange arc part 2, wherein one end of the first half flange arc part 1 is hinged with one end of the second half flange arc part 2, and the other end of the first half flange arc part 1 is detachably connected with the other end of the second half flange arc part 2. First hinge hole 3 has been seted up to 1 one end of first half flange arc spare, and second hinge hole 4 with 3 looks adaptations of first hinge hole is seted up to 2 one ends of second half flange arc spare, and first half flange arc spare 1 one end and 2 one ends of second half flange arc spare are worn to locate in first hinge hole 3 and the second hinge hole 4 articulated through a hinge bolt 10. The other end of the first half flange arc piece 1 is outwards protruded with a first locking plate 5, a first locking hole 6 is formed in the first locking plate 5, the other end of the second half flange arc piece 2 is outwards protruded with a second locking plate 7, a second locking hole 8 matched with the first locking hole 6 is formed in the second locking plate 7, and the other end of the first half flange arc piece 1 and the other end of the second half flange arc piece 2 are connected in a detachable mode through the first locking bolt 9 and the second locking hole 6 in a penetrating mode.
The first combined flange comprises a first half flange arc piece and a second half flange arc piece, one end of each of the first half flange arc piece and the second half flange arc piece is provided with a hinge hole and is hinged through a hinge bolt, the other end of each of the first half flange arc piece and the second half flange arc piece is provided with a locking plate, the locking plate is provided with a locking hole, and the other ends of the first half flange arc piece and the second half flange arc piece are locked through a locking bolt. And the first half flange arc piece and the second half flange arc piece are provided with a plurality of bolt holes for being connected with the third half flange arc piece, the fourth half flange arc piece, the fifth half flange arc piece and the sixth half flange arc piece. And the top surfaces of the first half flange arc piece and the second half flange arc piece are provided with lifting rings for being mounted on the supporting frame.
The second combined flange 27 comprises a third half flange arc part 11 and a fourth half flange arc part 12, wherein one end of the third half flange arc part 11 is hinged with one end of the fourth half flange arc part 12, and the other end of the third half flange arc part 11 is detachably connected with the other end of the fourth half flange arc part 12. Third hinge hole 13 has been seted up to third half flange arc piece 11 one end, and fourth hinge hole 14 with third hinge hole 13 looks adaptation is seted up to fourth half flange arc piece 12 one end, and third half flange arc piece 11 one end and fourth half flange arc piece 12 one end are worn to locate third hinge hole 13 and fourth hinge hole 14 in articulated through hinge bolt 10. The other end of the third half-flange arc piece 11 protrudes outwards to form a third locking plate 15, a third locking hole 16 is formed in the third locking plate 15, the other end of the fourth half-flange arc piece 12 protrudes outwards to form a fourth locking plate 17, a fourth locking hole 18 matched with the third locking hole 16 is formed in the fourth locking plate 17, and the other end of the third half-flange arc piece 11 and the other end of the fourth half-flange arc piece 12 penetrate through a second locking bolt 19 to be arranged in the third locking hole 16 and the fourth locking hole 18 for locking.
The second combined flange comprises a third half flange arc piece and a fourth half flange arc piece, one end of each of the third half flange arc piece and the fourth half flange arc piece is provided with a hinge hole and is hinged through a hinge bolt, the other end of each of the third half flange arc piece and the fourth half flange arc piece is provided with a locking plate, the locking plate is provided with a locking hole, and the other ends of the third half flange arc piece and the fourth half flange arc piece are locked through locking bolts. And a plurality of bolt holes are formed in the third half flange arc piece and the fourth half flange arc piece and are used for being connected with the first half flange arc piece, the second half flange arc piece, the fifth half flange arc piece and the sixth half flange arc piece.
The third combined flange 29 of the present invention comprises a fifth half flange arc member 20 and a sixth half flange arc member 21, wherein the fifth half flange arc member 20 is held between the first half flange arc member 1 and the third half flange arc member 11, the sixth half flange arc member 21 is held between the second half flange arc member 2 and the fourth half flange arc member 12, and the fifth half flange arc member 20 and the sixth half flange arc member 21 are both made of rubber.
A plurality of bolt holes are formed in a first half flange arc piece 1, a third half flange arc piece 11 and a fifth half flange arc piece 20, and the first half flange arc piece 1, the third half flange arc piece 11 and the fifth half flange arc piece 20 are fastened through first flange bolts 22; a plurality of bolt holes are formed in the second half flange arc piece 2, the fourth half flange arc piece 12 and the sixth half flange arc piece 21, and the second half flange arc piece 2, the fourth half flange arc piece 12 and the sixth half flange arc piece 21 are fastened through second flange bolts 23.
The third combined flange comprises a fifth half flange arc piece and a sixth half flange arc piece, wherein the fifth half flange arc piece is provided with a plurality of bolt holes, the fifth half flange arc piece is fastened and clamped between the first half flange arc piece and the third half flange arc piece through a plurality of first flange bolts, and the first half flange arc piece, the third half flange arc piece and the fifth half flange arc piece are fixed into a three-five half flange whole; and a plurality of bolt holes are formed in the sixth half flange arc piece, the sixth half flange arc piece is tightly clamped between the second half flange arc piece and the fourth half flange arc piece through a plurality of second flange bolts, the second half flange arc piece, the fourth half flange arc piece and the sixth half flange arc piece are fixed into a whole of two, four and half flanges, one ends of the two whole bodies are hinged, and the other ends of the two whole bodies are detachably connected through locking bolts. When the cable braking mechanism is required to be assembled on a cable, the first locking bolt and the second locking bolt are disassembled, the first half-flange, the third half-flange, the fifth half-flange and the second half-flange are integrally broken off, the cable is located between the first half-flange, the third half-flange, the fifth half-flange, the fourth half-flange and the sixth half-flange, the first locking bolt and the second locking bolt are installed, the whole assembling process is very simple, convenient and efficient, the fifth half-flange arc part and the sixth half-flange arc part are made of rubber materials, and the fact that the cable gravity can be offset by friction force generated between the third combined flange and the cable outer sheath can be effectively guaranteed.
The support frame comprises two triangular supports 25 which are distributed side by side, each triangular support 25 is provided with a shackle 30, each shackle 30 is connected with a steel wire rope 31, each of the first half flange arc piece 1 and the second half flange arc piece 2 is provided with a hanging ring 32, and the lower end of each steel wire rope 31 is fixed on each hanging ring 32.
The support frame comprises two triangular supports which are distributed side by side, the triangular supports are provided with shackles, the shackles are finished product shackles purchased in the conventional market, the shackles are connected with steel wire ropes, the first half flange arc piece and the second half flange arc piece are respectively provided with a hanging ring, the lower ends of the steel wire ropes are fixed on the hanging rings, the cable brake mechanism can be effectively ensured to be stably hung on the triangular supports, the first half flange whole, the second half flange whole, the third half flange whole, the fifth half flange whole and the second half flange whole correspond to one steel wire rope respectively, and the first half flange whole, the fifth half flange whole and the second half flange whole can be conveniently dismounted.
The utility model has clear and simple principle, low investment equipment and material cost, material saving, practicality, simple operation and high benefit; the method can well improve the laying safety and efficiency of the ultrahigh-voltage power cable of the high-fall shaft and improve the economic benefit of construction. The device is arranged in a cable shaft, the cable passes through a cable braking mechanism and is contacted with a rubber flange in the device through a cable outer sheath to generate friction, so that resistance is formed, and the cable is braked to slide downwards due to dead weight. After the cable is laid in place, the first locking bolt and the second locking bolt are loosened, the one-third-fifth-half flange whole body and the one-second-fourth-sixth-half flange whole body are opened, the cable is moved out of the braking device, the cable is installed on the permanent support of the vertical shaft, and the device can be detached and reused.
The utility model cancels the design of a sky anchor with great difficulty and the workload of installation of a sky cat, cancels the use of a large-scale winch, reduces the mechanical use cost and improves the safety of the construction process; the device has the advantages of simple structure, repeated use, low manufacturing cost and safe use.
According to the utility model, the number of braking devices to be arranged in the whole shaft is calculated according to parameters such as the height of the shaft, the weight of the cable, the stress limit of the cable and the like, then a triangular bracket is designed and manufactured as a device mounting bracket according to the design shape and the size of the cable bracket, the triangular bracket is fixed on the cable bracket of the shaft through welding or bolts, after the cable braking mechanism is assembled, the cable braking mechanism and the triangular bracket are connected through a steel wire rope, and the cable is assembled to a three-five-half flange whole body and a two-four-six-half flange whole body and locked inside, so that the device is obtained. After the cable is laid in place, the first locking bolt and the second locking bolt are loosened, the one-third-fifth-half flange whole body and the one-second-fourth-sixth-half flange whole body are opened, the cable is moved out of the braking device, the cable is installed on the permanent support of the vertical shaft, and the device can be detached and reused.
Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, but not to limit the technical solutions, and certainly not to limit the patent scope of the present invention; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; that is, the technical problems to be solved by the present invention, which are not substantially changed or supplemented by the spirit and the concept of the main body of the present invention, are still consistent with the present invention and shall be included in the scope of the present invention; in addition, the technical scheme of the utility model is directly or indirectly applied to other related technical fields, and the technical scheme is included in the patent protection scope of the utility model.
Claims (10)
1. A braking device for laying an ultrahigh-voltage power cable in a high-fall shaft is characterized by comprising a plurality of supporting frames and a cable braking mechanism, wherein the supporting frames are arranged on the inner wall of the shaft (24), and the cable braking mechanism is arranged on the supporting frames; the cable braking mechanism comprises a first combined flange (26) connected with the support frame, a second combined flange (27) connected with the first combined flange (26), and a third combined flange (29) clamped between the first combined flange (26) and the second combined flange (27) and used for generating friction braking with an outer sheath of a cable (28), wherein the support frame is equidistantly distributed along a cable stroke path during cable laying operation.
2. The braking device for the laying of the ultrahigh-voltage power cable in the high-fall shaft according to claim 1, wherein the first combined flange (26) comprises a first half flange arc piece (1) and a second half flange arc piece (2), one end of the first half flange arc piece (1) is hinged with one end of the second half flange arc piece (2), and the other end of the first half flange arc piece (1) is detachably connected with the other end of the second half flange arc piece (2).
3. The braking device for laying the ultrahigh-voltage power cable in the high-drop shaft according to claim 2, wherein one end of the first half flange arc piece (1) is provided with a first hinge hole (3), one end of the second half flange arc piece (2) is provided with a second hinge hole (4) matched with the first hinge hole (3), and one end of the first half flange arc piece (1) and one end of the second half flange arc piece (2) penetrate through the first hinge hole (3) and one end of the second hinge hole (4) through a hinge bolt (10) and are hinged with each other.
4. The braking device for laying the ultrahigh-voltage power cable in the high-drop shaft according to claim 2, wherein a first locking plate (5) protrudes outwards from the other end of the first half-flange arc piece (1), a first locking hole (6) is formed in the first locking plate (5), a second locking plate (7) protrudes outwards from the other end of the second half-flange arc piece (2), a second locking hole (8) matched with the first locking hole (6) is formed in the second locking plate (7), and the other end of the first half-flange arc piece (1) and the other end of the second half-flange arc piece (2) are detachably connected through the first locking hole (6) and the second locking hole (8) in a penetrating mode through a first locking bolt (9).
5. The braking device for the laying of the ultrahigh-voltage power cable in the high-fall shaft according to claim 2, wherein the second combined flange (27) comprises a third half flange arc piece (11) and a fourth half flange arc piece (12), one end of the third half flange arc piece (11) is hinged with one end of the fourth half flange arc piece (12), and the other end of the third half flange arc piece (11) is detachably connected with the other end of the fourth half flange arc piece (12).
6. The braking device for laying the ultrahigh-voltage power cable in the high-drop shaft according to claim 5, wherein a third hinge hole (13) is formed in one end of the third half-flange arc piece (11), a fourth hinge hole (14) matched with the third hinge hole (13) is formed in one end of the fourth half-flange arc piece (12), and one end of the third half-flange arc piece (11) and one end of the fourth half-flange arc piece (12) are hinged to each other in the third hinge hole (13) and the fourth hinge hole (14) through hinge bolts (10).
7. The braking device for laying the ultrahigh-voltage power cable in the high-drop shaft according to claim 5, wherein a third locking plate (15) protrudes outwards from the other end of the third half-flange arc piece (11), a third locking hole (16) is formed in the third locking plate (15), a fourth locking plate (17) protrudes outwards from the other end of the fourth half-flange arc piece (12), a fourth locking hole (18) matched with the third locking hole (16) is formed in the fourth locking plate (17), and the other end of the third half-flange arc piece (11) and the other end of the fourth half-flange arc piece (12) are inserted into the third locking hole (16) and the fourth locking hole (18) through a second locking bolt (19) to be locked.
8. The braking device for the laying of the ultrahigh-pressure power cable in the high-fall shaft according to claim 5, wherein the third combined flange (29) comprises a fifth half flange arc piece (20) and a sixth half flange arc piece (21), the fifth half flange arc piece (20) is clamped between the first half flange arc piece (1) and the third half flange arc piece (11), the sixth half flange arc piece (21) is clamped between the second half flange arc piece (2) and the fourth half flange arc piece (12), and the fifth half flange arc piece (20) and the sixth half flange arc piece (21) are both made of rubber.
9. The braking device for laying the ultrahigh-voltage power cable in the high-fall shaft according to claim 8, wherein a plurality of bolt holes are formed in the first half flange arc piece (1), the third half flange arc piece (11) and the fifth half flange arc piece (20), and the first half flange arc piece (1), the third half flange arc piece (11) and the fifth half flange arc piece (20) are fastened through first flange bolts (22);
a plurality of bolt holes are formed in the second half flange arc piece (2), the fourth half flange arc piece (12) and the sixth half flange arc piece (21), and the second half flange arc piece (2), the fourth half flange arc piece (12) and the sixth half flange arc piece (21) are fastened through second flange bolts (23).
10. The braking device for the laying of the ultrahigh-voltage power cable in the high-fall shaft according to claim 2, wherein the support frame comprises two triangular supports (25) which are distributed side by side, each triangular support (25) is provided with a shackle (30), each shackle (30) is connected with a steel wire rope (31), each of the first half flange arc piece (1) and the second half flange arc piece (2) is provided with a lifting ring (32), and the lower end of each steel wire rope (31) is fixed on each lifting ring (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121680219.2U CN215378267U (en) | 2021-07-23 | 2021-07-23 | Braking device for laying ultrahigh-voltage power cable in high-fall shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121680219.2U CN215378267U (en) | 2021-07-23 | 2021-07-23 | Braking device for laying ultrahigh-voltage power cable in high-fall shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215378267U true CN215378267U (en) | 2021-12-31 |
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ID=79611047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121680219.2U Active CN215378267U (en) | 2021-07-23 | 2021-07-23 | Braking device for laying ultrahigh-voltage power cable in high-fall shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215378267U (en) |
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2021
- 2021-07-23 CN CN202121680219.2U patent/CN215378267U/en active Active
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