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Overhead conductor pay-off length measuring device

A technology for length measurement and overhead conductors. It is used in measurement devices, overhead line/cable equipment, instruments, etc. It can solve the problems of short circuit faults, prone to slippage, inconsistent conductor sag, etc., to achieve accurate length measurement and avoid slippage. Phenomenon, effect with a wide range of applications

Pending Publication Date: 2022-04-12
国网河北省电力有限公司雄安新区供电公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Inconsistent sag of the wires will lead to different wind swings of the wires in windy weather, which will easily lead to short circuit faults of the line;
[0006] 2. Due to the different wire diameters, the tension of the wires is also different, and the horizontal force of the cross-arm is uneven, which will cause the cross-arm to bend or rotate in the direction of small force
[0008] However, when the wire is paid out overhead, since the wire is a bare wire with a hard and smooth surface, it is easy to slip, so the technical solution disclosed in the above patent application is not suitable for the length measurement of the wire

Method used

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  • Overhead conductor pay-off length measuring device
  • Overhead conductor pay-off length measuring device
  • Overhead conductor pay-off length measuring device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as Figure 1 to Figure 4 As shown, an overhead wire pay-off length measurement device includes a body frame 6 with a rectangular cross-section sheathed outside the wire 3 and a metering assembly 7 arranged in the body frame 6 near the middle. The metering assembly 7 is two groups symmetrically arranged on the upper and lower sides of the wire 3, and each group of metering assemblies 7 includes a support frame 14, three synchronous wheels 12 arranged axially along the wire 3, and crawler belts set on the synchronous wheel 12. 13 and an encoder 27 fixedly arranged on the support frame 14 for measuring the number of revolutions of the rightmost synchronous wheel 12.

[0046] The frame is connected to the body frame 6, the inner side of the crawler belt 13 is used for cooperating with the synchronous wheel 12, and the outer side of the crawler belt is lined with a wear-resistant layer, and the material of the wear-resistant layer is wear-resistant rubber. The speed is...

Embodiment 2

[0061] Such as Figure 5 to Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that the body frame 6 includes an upper frame 29 with a door-shaped cross section and a U-shaped lower frame 28 with a U-shaped cross section. The horizontal plane where the axis of the wire 3 is located is symmetrical up and down, one side of the upper frame 29 is hinged to one side of the lower frame 28, and the other side of the upper frame 29 is detachably connected to the other side of the lower frame 28; The horizontal plane where the axis of the wire 3 is located is arranged symmetrically up and down.

[0062] Such as Figure 6 and Figure 7 As shown, the sliding seat 1, the second screw rod 25 and the second handwheel 24 are all arranged on the lower frame 28, and the two first guide rollers 4 are respectively connected on the upper frame 29 and the lower frame 28, and the lower frame 28 and the left side of the upper frame 29 are welded with laterally protrudin...

Embodiment 3

[0065] Such as Figure 8 and Figure 9 As shown, the difference between this embodiment and Embodiment 2 is that a sealed dust removal chamber 32 is provided on the left side of the metering assembly 7, and the dust removal chamber 32 is divided into mutually independent and upper frame 29 by the horizontal plane where the wire 3 is located. The upper dust removal chamber of welding and the lower dust removal chamber welded with lower frame 29.

[0066] Both the dust removal chamber and the lower dust removal chamber are provided with semicircular holes at the positions corresponding to the wires 3, the upper dust removal chamber and the lower dust removal chamber are fitted with the wire 3 in clearance, and the top of the dust removal chamber 32 is provided with a ventilation hole 35, so that The bottom of the lower dust removal chamber is welded with a dust removal pipe 34 communicating with the inside thereof, and the dust removal pipe 34 communicates with the negative pre...

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Abstract

The invention discloses a device for measuring the pay-off length of an overhead conductor. The device comprises a machine body frame and a metering assembly, wherein the machine body frame is arranged outside the conductor in a sleeving manner and has a rectangular cross section; the two metering assemblies are symmetrically arranged on the two sides of the wire, and each metering assembly comprises a supporting frame, at least two synchronous wheels arranged in the axial direction of the wire, a crawler belt arranged on the synchronous wheels in a sleeving mode and an encoder fixedly arranged on the supporting frame and used for measuring the rotation number of at least one synchronous wheel. The lead drives the crawler belt and the synchronizing wheel to rotate, the encoder measures the rotating speed of the synchronizing wheel, so that the length of the lead is measured, the contact area of the crawler belt and the lead is large, the slipping phenomenon is avoided, and the length measurement is more accurate.

Description

technical field [0001] The invention relates to the technical field of power transmission line erection equipment, in particular to a device for measuring the pay-off length of overhead wires. Background technique [0002] In recent years, with the rapid development of the economy, the scale of urban and rural construction has continued to expand, the demand for electricity has increased, and users' requirements for power supply reliability and quality have also continued to rise, which has brought about the distribution network project. With increasing investment and increasing number of distribution network projects, it is further required that functions such as construction technical standards, process quality, and construction specifications of distribution network projects be gradually refined and improved. [0003] In the course of many years of construction practice, it was found that when the overhead conductors are paid out by traditional winches or purely manual me...

Claims

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Application Information

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IPC IPC(8): G01B21/06H02G1/02B08B1/04B08B5/04B08B7/04
Inventor 李如锋周开峰唐宝锋于璐
Owner 国网河北省电力有限公司雄安新区供电公司
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