CN219998919U - Fixing device of underground high-voltage cable in vertical cable hole - Google Patents
Fixing device of underground high-voltage cable in vertical cable hole Download PDFInfo
- Publication number
- CN219998919U CN219998919U CN202321396879.7U CN202321396879U CN219998919U CN 219998919 U CN219998919 U CN 219998919U CN 202321396879 U CN202321396879 U CN 202321396879U CN 219998919 U CN219998919 U CN 219998919U
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- cable
- fixing mechanism
- vertical section
- vertical
- clamping plate
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000005452 bending Methods 0.000 claims abstract description 3
- 210000000078 claw Anatomy 0.000 claims description 6
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 11
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model discloses a fixing device of a downhole high-voltage cable in a vertical cable hole, which comprises a connecting rod, a first fixing mechanism and a second fixing mechanism, wherein the connecting rod is fixedly connected with the first fixing mechanism; the connecting rod comprises a first vertical section, a bending section and a second vertical section which are sequentially connected from top to bottom; the first vertical section is positioned at the rear side of the second vertical section; the first vertical section is provided with a first fixing mechanism which is used for fixedly connecting the connecting rod with a steel wire rope used for discharging the cable; the front part of the second vertical section is fixedly connected with the rear part of the second fixing mechanism, and the second fixing mechanism is used for being fixedly connected with the cable. The cable fixing device solves the problem that the distance between the steel wire rope and the cable is relatively short through the bent connecting rod, and meanwhile, the cable can be prevented from falling after the first fixing mechanism loosens through the stop block.
Description
Technical Field
The utility model relates to a cable fixing device.
Background
Some of the downhole equipment in mines requires power via high voltage cables. For example, 400KW 2-level main fans installed in a main fan machine room of a main roadway of a current sublevel 150m of a gold mine of a three-mountain island are powered by a 6KV high-voltage cable led out from a 35KV total voltage reduction substation of an ammeter, so that the normal operation requirement of the fans is met.
There are many obstacles to the laying of high voltage cables. If the high-voltage cable is laid from the gallery and the service well, the engineering quantity is greatly increased, and the timely power supply of the underground main fan is influenced, so that the underground main fan is not suitable to be adopted. Another proposal is to use a down-the-hole drill to drill a 270mm cable hole from the earth surface, drop the high-voltage cable from the cable hole to the-150 m gallery, and then enter the main fan blower room. When the cable is put down, the traction steel wire rope and the cable are fixed together, and then the cable is put down through the traction equipment. However, the wire rope and the cable are generally directly fixed together by strapping, and there are the following problems: firstly, the steel wire rope is relatively close to the cable, is easy to collide with each other and even wind up, and influences normal release; secondly, the bundling position is easy to be separated, so that the cable falls.
Disclosure of Invention
The utility model provides a fixing device of a downhole high-voltage cable in a vertical cable hole, which aims to: the problem that the distance between the steel wire rope and the cable is relatively short is solved; (2) prevent the cable from falling.
The technical scheme of the utility model is as follows:
a fixing device of a downhole high-voltage cable in a vertical cable hole comprises a connecting rod, a first fixing mechanism and a second fixing mechanism;
the connecting rod comprises a first vertical section, a bending section and a second vertical section which are sequentially connected from top to bottom; the first vertical section is positioned at the rear side of the second vertical section;
the first vertical section is provided with a first fixing mechanism which is used for fixedly connecting the connecting rod with a steel wire rope used for discharging the cable;
the front part of the second vertical section is fixedly connected with the rear part of the second fixing mechanism, and the second fixing mechanism is used for being fixedly connected with the cable.
As a further improvement of the fixing means of the downhole high voltage cable in the vertical cable hole: and a stop block is fixedly connected to the side of the upper end of the first vertical section.
As a further improvement of the fixing means of the downhole high voltage cable in the vertical cable hole: the first fixing mechanism comprises a U-shaped bolt, a fixing claw and a first nut; the fixed claw is provided with through holes corresponding to the two external thread ends of the U-shaped screw one by one, the first nuts are two groups and are connected with the two external thread ends one by one.
As a further improvement of the fixing means of the downhole high voltage cable in the vertical cable hole: the second fixing mechanism comprises an inner clamping plate and an outer clamping plate, and the inner clamping plate and the outer plate are semicircular and are oppositely arranged; the two ends of the inner clamping plate and the two ends of the outer clamping plate are correspondingly connected through screws and second nuts respectively; the rear part of the inner clamping plate is fixedly connected with the front part of the second vertical section.
As a further improvement of the fixing means of the downhole high voltage cable in the vertical cable hole: the second fixing mechanism further comprises a bushing arranged in a round hole formed by the inner clamping plate and the outer clamping plate in a surrounding mode.
As a further improvement of the fixing means of the downhole high voltage cable in the vertical cable hole: the bushing is C-shaped.
Compared with the prior art, the utility model has the following positive effects: (1) The device is provided with a bent connecting rod, and two ends of the connecting rod are respectively connected with the steel wire rope/cable through a fixing mechanism, so that the steel wire rope and the cable are isolated through a middle bent section, and collision of the steel wire rope and the cable is avoided; (2) The upper end of the connecting rod is provided with a stop block, when the first fixing mechanism is loosened, the cable drives the connecting rod to fall, and the stop block is blocked by the U-shaped bolt at the moment, so that the cable is prevented from falling; (3) The second fixing mechanism is provided with a bushing, so that friction force between the second fixing mechanism and the outer surface of the cable can be increased, the outer surface of the cable is protected, and the cable is prevented from being damaged by the metal clamping plate.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a side view of the connecting rod and the rear half of the inner clamping plate;
FIG. 3 is a top view of the connecting rod, stop block and second securing mechanism portion;
fig. 4 is a schematic view of the present utility model when installed on a steel cord.
Detailed Description
The technical scheme of the utility model is described in detail below with reference to the accompanying drawings:
referring to fig. 1, a fixing device for a downhole high-voltage cable in a vertical cable hole comprises a connecting rod 1, a first fixing mechanism and a second fixing mechanism.
The connecting rod 1 adopts phi 16mm/Q235B screw thread steel. As shown in fig. 2, the connecting rod 1 includes a first vertical section 1-1, a curved section 1-2, and a second vertical section 1-3 connected in this order from top to bottom. The first vertical section 1-1 is located at the rear side of the second vertical section 1-3 with a horizontal spacing of about 46mm.
As shown in fig. 1, a first fixing mechanism is installed on the first vertical section 1-1, and the first fixing mechanism is used for fixedly connecting the connecting rod 1 with a steel wire rope used for paying off a cable.
Specifically, the first fixing mechanism comprises a U-shaped bolt 3, a fixing claw 4 and a first nut 5, which are all made of metal materials, and the surface is galvanized. The fixing claw 4 is provided with through holes corresponding to the two external thread ends of the U-shaped screw 7 one by one, and the first nuts 5 are two groups and are connected with the two external thread ends one by one.
The upper end side of the first vertical section 1-1 is fixedly connected with a stop block 2 in a welding mode.
As shown in fig. 3, the front part of the second vertical section 1-3 is fixedly connected with the rear part of a second fixing mechanism for fixedly connecting with a cable.
Specifically, the second fixing mechanism comprises an inner clamping plate 9 and an outer clamping plate 6. The inner clamping plate 9 and the outer plate block are semicircular and oppositely arranged. The two ends of the inner clamping plate 9 and the two ends of the outer clamping plate 6 are correspondingly connected through screws 7 and second nuts 8 respectively. The rear part of the inner clamping plate 9 is fixedly connected with the front part of the second vertical section 1-3.
In the embodiment, the inner clamping plate 9 and the outer clamping plate 6 are manufactured by adopting delta 5mm/Q235B metal structure steel plate sheet metal processing, surface galvanization treatment is carried out, the length of a processed straight line is 160mm, the height is 60mm, and the gap between clamping plates is less than or equal to 20mm. The specification of the screw 7 is M14 x 60mm, and the surface is galvanized.
Further, the second fixing mechanism further comprises a bushing 10 arranged in a round hole surrounded by the inner clamping plate 9 and the outer clamping plate 6. The bushing 10 is C-shaped.
The bushing 10 is made of an anti-skid rubber plate in a shape of 160 x 80 x 5mm strips, so that friction force can be increased, and the surface of a cable can be protected, so that the cable is prevented from being damaged by the metal clamping plate.
In the embodiment, all welding seams adopt fillet welding, continuous welding and double-sided welding seams for welding, the height of the welding seams is not less than 10mm, and welding is carried out by adopting J422 structural steel welding rods, so that defects such as slag inclusion, air holes and the like are strictly controlled in the welding process, and the welding quality is ensured.
As shown in fig. 4, when the cable is lowered, the connecting rod 1 is fixed to the wire rope using the first fixing mechanism, and then the cable is fixed to the connecting rod 1 using the second fixing mechanism. And then the cable is put down by putting down the steel wire rope. If the first fixing mechanism is loosened, the cable descends, and the stop block 2 is clamped on the U-shaped bolt 3, so that the cable is prevented from falling.
The wire rope selects the wire rope which does not rotate by 18 x 7 mm, so that the cable hole is prevented from being blocked and the cable surface is prevented from being damaged due to rotation in the installation process of the wire rope, and lithium grease is smeared on the surface in the releasing process of the wire rope so as to prolong the service life of the wire rope.
Claims (6)
1. A fixing device of a downhole high-voltage cable in a vertical cable hole, which is characterized in that: comprises a connecting rod (1), a first fixing mechanism and a second fixing mechanism;
the connecting rod (1) comprises a first vertical section (1-1), a bending section (1-2) and a second vertical section (1-3) which are sequentially connected from top to bottom; the first vertical section (1-1) is positioned at the rear side of the second vertical section (1-3);
a first fixing mechanism is arranged on the first vertical section (1-1) and is used for fixedly connecting the connecting rod (1) with a steel wire rope used for paying off the cable;
the front part of the second vertical section (1-3) is fixedly connected with the rear part of a second fixing mechanism, and the second fixing mechanism is used for being fixedly connected with a cable.
2. The downhole high voltage cable fixation apparatus in a vertical cable hole of claim 1 wherein: a stop block (2) is fixedly connected to the side of the upper end of the first vertical section (1-1).
3. A downhole high voltage cable fixing device in a vertical cable hole according to claim 1 or 2, wherein: the first fixing mechanism comprises a U-shaped bolt (3), a fixing claw (4) and a first nut (5); the fixing claw (4) is provided with through holes corresponding to the two external thread ends of the U-shaped screw (7) one by one, and the first nuts (5) are two groups and are connected with the two external thread ends one by one.
4. A downhole high voltage cable fixing device in a vertical cable hole according to claim 1 or 2, wherein: the second fixing mechanism comprises an inner clamping plate (9) and an outer clamping plate (6), and the inner clamping plate (9) and the outer plate are arranged in a semicircular shape and are opposite to each other; two ends of the inner clamping plate (9) and two ends of the outer clamping plate (6) are correspondingly connected with a second nut (8) through screws (7) respectively; the rear part of the inner clamping plate (9) is fixedly connected with the front part of the second vertical section (1-3).
5. The downhole high voltage cable fixation apparatus in a vertical cable hole of claim 4 wherein: the second fixing mechanism further comprises a bushing (10) arranged in a round hole formed by the inner clamping plate (9) and the outer clamping plate (6).
6. The downhole high voltage cable fixation apparatus in a vertical cable aperture of claim 5 wherein: the bushing (10) is C-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321396879.7U CN219998919U (en) | 2023-06-03 | 2023-06-03 | Fixing device of underground high-voltage cable in vertical cable hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321396879.7U CN219998919U (en) | 2023-06-03 | 2023-06-03 | Fixing device of underground high-voltage cable in vertical cable hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219998919U true CN219998919U (en) | 2023-11-10 |
Family
ID=88612740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321396879.7U Active CN219998919U (en) | 2023-06-03 | 2023-06-03 | Fixing device of underground high-voltage cable in vertical cable hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219998919U (en) |
-
2023
- 2023-06-03 CN CN202321396879.7U patent/CN219998919U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |