CN111211528A - Power transmission line suspension clamp - Google Patents
Power transmission line suspension clamp Download PDFInfo
- Publication number
- CN111211528A CN111211528A CN201811394504.0A CN201811394504A CN111211528A CN 111211528 A CN111211528 A CN 111211528A CN 201811394504 A CN201811394504 A CN 201811394504A CN 111211528 A CN111211528 A CN 111211528A
- Authority
- CN
- China
- Prior art keywords
- wire
- polytetrafluoroethylene sleeve
- transmission line
- power transmission
- clamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
- H02G7/053—Suspension clamps and clips for electric overhead lines not suspended to a supporting wire
Abstract
A suspension clamp of a power transmission line; the steel core aluminum stranded wire clamp is characterized in that a polytetrafluoroethylene sleeve is placed in a wire clamp shell, a wire pressing cushion block is placed on the polytetrafluoroethylene sleeve, a U-shaped bolt passes through a fastening nut from top to bottom, the wire pressing cushion block and the polytetrafluoroethylene sleeve are connected and fastened with the wire clamp shell, and a lifting lug is assembled together through a fixing screw and a lifting lug fixing nut, wherein a slot is longitudinally formed in the inner hole of the polytetrafluoroethylene sleeve, an opening is longitudinally cut in an end slot corresponding to the opening of the steel core aluminum stranded wire so as to be conveniently coated on the steel core aluminum stranded wire, a convex pattern is formed on the inner wall of the steel core aluminum stranded wire, the polytetrafluoroethylene sleeve is at least 2 times longer than the bottom of the wire clamp shell, due to the adoption of the high-strength and flexible polytetrafluoroethylene sleeve and the coating of a suspension stress part of the steel core aluminum stranded wire, the abrasion of the steel core aluminum, the service life of the steel-cored aluminum strand is greatly prolonged, and the safe operation of the power transmission line is effectively guaranteed.
Description
Technical Field
The patent relates to the technical field of high-voltage transmission line construction, in particular to a suspension clamp for a transmission line.
Background
At present; a suspension clamp is widely adopted for fixing large-diameter steel-cored aluminum stranded wires of high-voltage and ultrahigh-voltage transmission lines, a clamp shell is generally made of steel or aluminum, the steel-cored aluminum stranded wires to be fixed are placed in the clamp shell, and the steel-cored aluminum stranded wires are pressed through U-shaped bolts and wire pressing cushion blocks; compress tightly steel-cored aluminum strand wires and fix in the wire clamp shell, then hang in the insulator below through the lug, because fixed point distance is long, circuit weight is big, it is very big at steel-cored aluminum strand wires and fastener both ends contact position atress, also atress at upper line ball cushion both ends contact point, because long-term wind blows vibration, sway, buckle, stress point aluminum wire can wear and tear the injury, long-time contact point position aluminum wire material can the fatigue strength reduce, arouse the emergence of the disconnected strand phenomenon of aluminum conductor, influence transmission line safe operation.
Disclosure of Invention
The purpose of this patent is to address; the suspension fixing wire clamp for the high-voltage and ultrahigh-voltage transmission lines and the large-diameter steel-cored aluminum strand is provided for the current situation of damage to the steel-cored aluminum strand; can prevent the abrasion of the steel-cored aluminum strand and prolong the service life of the steel-cored aluminum strand, and provides a suspension clamp for a power transmission line.
The technical scheme adopted by the patent for solving the technical problem is as follows; the cable clamp is characterized in that a polytetrafluoroethylene sleeve is placed in a cable clamp shell, a cable pressing cushion block is placed on the cable clamp shell, a U-shaped bolt passes through a fastening nut from top to bottom, the cable pressing cushion block is connected and fastened with the cable clamp shell, and then a lifting lug is assembled together through a fixing screw and a lifting lug fixing nut, wherein a slot is longitudinally formed in an inner hole of the polytetrafluoroethylene sleeve, an opening is longitudinally cut in an opening end slot of a corresponding surface, so that the cable clamp is conveniently coated on a steel-cored aluminum stranded wire, ribs are formed on the inner wall of the polytetrafluoroethylene sleeve, the matching with the steel-cored aluminum stranded wire is increased, the sliding is prevented, the polytetrafluoroethylene sleeve is at least 2 times longer than the bottom of the cable clamp shell, the polytetrafluoroethylene sleeve is matched with a corresponding standard wire diameter, a series of adaptive products are manufactured, the cable clamp shell, the.
When the device is installed and used; firstly, a polytetrafluoroethylene sleeve is stripped and sleeved on a steel-cored aluminum strand to be fixed, the opening is in the left or right direction, two ends of the polytetrafluoroethylene sleeve are fastened by clamps and placed in a wire clamp shell, then a lifting lug connected below an insulator is fixed with the wire clamp shell through a lifting lug fixing screw and a lifting lug fixing nut, and the position is adjusted; the wire pressing cushion block is put in, and the steel-cored aluminum strand coated with the polytetrafluoroethylene sleeve is tightly connected with the wire clamp shell by the two U-shaped bolts through the fastening nuts.
The beneficial effect of this patent lies in: because the high-strength and flexible polytetrafluoroethylene sleeve is adopted and the overhanging stress part of the steel-cored aluminum strand is coated, the steel-cored aluminum strand is prevented from being abraded due to wind-blowing swing and bending, and the stressed fatigue section of the steel-cored aluminum strand is prolonged due to the action of the polytetrafluoroethylene sleeve, so that the service life of the steel-cored aluminum strand is greatly prolonged, and the safe operation of a power transmission line is effectively ensured.
Drawings
The patent is further described with reference to the accompanying drawings.
Fig. 1 is a view showing the external appearance of the present patent.
Fig. 2 is a side sectional view of the patent.
FIG. 3 is an external view of the polytetrafluoroethylene sleeve of the present patent.
FIG. 4 is a cross-sectional view of the polytetrafluoroethylene sleeve of this patent.
FIG. 5 is a cross-sectional view of the Teflon sleeve of the present patent.
Fig. 6 is a front cross-sectional view of the patent.
Fig. 7 is a sectional view of a suspension clamp installation in use today.
In the figure: 1. a wire clamp housing; 2. a polytetrafluoroethylene sleeve; 3. steel-cored aluminum stranded wires; 4. pressing line cushion blocks; 5. a U-shaped bolt; 6. fastening a nut; 7. lifting lugs; 8. the lifting lug fixes the screw rod; 9. a groove; 10. an open end slot; 11. an opening; 12. a relief pattern; 13. the lifting lug is provided with a spacing sleeve; 14. the lifting lug fixing nut; 15. a steel strand core; 16. a clip; 17. an upper stress point; 18. the lower stress point.
Detailed Description
This patent includes the drawings in which: the polytetrafluoroethylene sleeve 2 is placed in the wire clamp shell 1, the wire pressing cushion block 4 is placed on the polytetrafluoroethylene sleeve 2, the U-shaped bolt 5 is assembled from top to bottom through the fastening nut 6, the wire pressing cushion block 4 is connected with the polytetrafluoroethylene sleeve 2 and the wire clamp shell 1, then the lifting lug 7 is assembled together through the lifting lug fixing screw 8 and the lifting lug fixing nut 14, wherein the inner hole of the polytetrafluoroethylene sleeve 2 is longitudinally provided with a groove 9 and an open end groove 10, the open end groove 10 is longitudinally provided with an opening 11, the inner wall of the polytetrafluoroethylene sleeve 2 is provided with a convex pattern 12, the polytetrafluoroethylene sleeve 2 is at least 2 times longer than the bottom of the wire clamp shell, the wire clamp shell 1 and the polytetrafluoroethylene sleeve 2 are matched with corresponding standard wire diameters to manufacture a series of adaptive products, and the wire clamp shell 1, the wire pressing cushion block 4 and the lifting lug 7 are manufactured and then are subjected to corrosion prevention through hot galvanizing.
When the patent is used; firstly, a polytetrafluoroethylene sleeve 2 is stripped and sleeved on a steel-cored aluminum strand 3 to be fixed, an opening 11 is arranged in the left or right direction, two ends of the polytetrafluoroethylene sleeve 2 are fastened by clamps 16 and are placed in a wire clamp shell 1, then a lifting lug 7 connected below an insulator is fixed with the wire clamp shell 1 through a lifting lug fixing screw 8 and a lifting lug fixing nut 14, and the position is adjusted; the wire pressing cushion block 4 is put in, the two U-shaped bolts 5 tightly connect the steel-cored aluminum strand 3 coated with the polytetrafluoroethylene sleeve 2 with the wire clamp shell 1 through the fastening nuts 6.
The implementation of the patent has the advantages; because the high-strength and flexible polytetrafluoroethylene sleeve 2 is adopted and the overhanging stress part of the steel-cored aluminum strand 3 is coated, the steel-cored aluminum strand 3 avoids the abrasion caused by wind-blowing swing and bending, and because the polytetrafluoroethylene sleeve 2 acts, the stress fatigue section of the steel-cored aluminum strand 3 is prolonged, the service life of the steel-cored aluminum strand 3 is greatly prolonged, and the safe operation of a power transmission line is effectively ensured.
The foregoing is only a basic embodiment of the patent, and it should be noted that, for those skilled in the art, many modifications, substitutions and technical extensions can be made without departing from the technical principle of the patent, and these modifications, substitutions and technical extensions should also be regarded as the technical scope of the patent and also belong to the protection scope of the patent.
Claims (6)
1. The utility model provides a transmission line suspension clamp which characterized in that: the wire clamp is formed by placing a polytetrafluoroethylene sleeve in a wire clamp shell, placing a wire pressing cushion block and a U-shaped bolt on the wire clamp shell, connecting and fastening the wire pressing cushion block and the polytetrafluoroethylene sleeve with the wire clamp shell through a fastening nut from top to bottom, and assembling a lifting lug together through a fixing screw and a lifting lug fixing nut.
2. The power transmission line suspension clamp of claim 1, further characterized by: wherein, the inner hole of the polytetrafluoroethylene sleeve is longitudinally provided with a groove, and the end groove of the opening on the corresponding surface is longitudinally provided with an opening.
3. The power transmission line suspension clamp of claim 1, further characterized by: the inner wall of the polytetrafluoroethylene sleeve is provided with convex lines.
4. The power transmission line suspension clamp of claim 1, further characterized by: the teflon sleeve is at least 2 times longer than the bottom of the cable clamp housing.
5. The power transmission line suspension clamp of claim 1, further characterized by: the wire clamp shell, the polytetrafluoroethylene sleeve and the corresponding standard wire diameter are matched to manufacture an adaptive series product.
6. The power transmission line suspension clamp of claim 1, further characterized by: the wire clamp shell, the wire pressing cushion block and the lifting lug are all hot-dip galvanized after being manufactured by cast steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394504.0A CN111211528A (en) | 2018-11-22 | 2018-11-22 | Power transmission line suspension clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394504.0A CN111211528A (en) | 2018-11-22 | 2018-11-22 | Power transmission line suspension clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111211528A true CN111211528A (en) | 2020-05-29 |
Family
ID=70788448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811394504.0A Pending CN111211528A (en) | 2018-11-22 | 2018-11-22 | Power transmission line suspension clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111211528A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111799735A (en) * | 2020-08-04 | 2020-10-20 | 山东鲁能光大电力器材有限公司 | Wind deflection prevention suspension clamp |
-
2018
- 2018-11-22 CN CN201811394504.0A patent/CN111211528A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111799735A (en) * | 2020-08-04 | 2020-10-20 | 山东鲁能光大电力器材有限公司 | Wind deflection prevention suspension clamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2946451A1 (en) | Aerial conductor wire suspension clamp | |
| EP3487020A1 (en) | Tension-resistant line clamp for carbon fiber composite core | |
| CN111211528A (en) | Power transmission line suspension clamp | |
| CN201289991Y (en) | Vibration insulation hammer | |
| CN206099215U (en) | Electric power transmission is cable fixing device for cable | |
| CN202167813U (en) | Pre-twisted strain clamp | |
| CN109038434B (en) | Wedge-shaped straight-through strain clamp | |
| CN202068152U (en) | Pre-twisted suspension clamp | |
| CN209994066U (en) | Pre-twisted strain clamp core ring | |
| CN209358206U (en) | A kind of preformed carrying out safety backup wire clamp mounting structure of conducting wire pendency | |
| CN208890320U (en) | A kind of suspension clamp for electric line | |
| CN102364792A (en) | Strain hardware fitting for optical fiber composite overhead phase wire | |
| CN205429652U (en) | Insulating high -voltage cable strain clamp of jib type | |
| CN201444563U (en) | Pre-twisted wire type anti-vibration hammer | |
| CN106004526A (en) | Composite hanger wire and electric railway catenary hanger | |
| CN203839880U (en) | Strain clamp | |
| RU148360U1 (en) | CLAMP MEDIUM ANCHORING | |
| CN201829898U (en) | Novel antiskid type anti-vibration hammer | |
| CN202308360U (en) | Pre-twisting type T-type continuing strip | |
| CN107134748B (en) | A kind of carbon fiber strain clamp | |
| RU159915U1 (en) | SUPPORTING CLAMP | |
| US2210587A (en) | Clamping device | |
| CN202178553U (en) | Pre-stranded wire damping anti-vibration hammer | |
| CN211046399U (en) | Special-shaped copper-aluminum parallel groove wire clamp | |
| CN103972841A (en) | Reinforced shockproof hammer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200529 |
|
| WD01 | Invention patent application deemed withdrawn after publication |