CN103956682A - Adjustable paying-off pulley test rack - Google Patents
Adjustable paying-off pulley test rack Download PDFInfo
- Publication number
- CN103956682A CN103956682A CN201410189793.6A CN201410189793A CN103956682A CN 103956682 A CN103956682 A CN 103956682A CN 201410189793 A CN201410189793 A CN 201410189793A CN 103956682 A CN103956682 A CN 103956682A
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- China
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- pulley
- paying
- pulley block
- adjustable
- mobile jib
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Abstract
The invention provides an adjustable paying-off pulley test rack. The adjustable paying-off pulley test rack comprises a pulley frame and a paying-off pulley, wherein the pulley frame is of a frame structure, main rods are vertically arranged at intervals, and the paying-off pulley is arranged on the main rods. According to the improvement on the adjustable paying-off pulley test rack, adjusting cushion blocks are arranged between the paying-off pulley and the main rods. Compared with the prior art, the adjustable paying-off pulley test rack is used for detecting influence of a paying-off pulley friction resistance coefficient and paying-off construction technology parameters on wire damage, and the requirements for paying-off pulley developing and detecting and tension paying-off construction parameter determining and optimizing can be met.
Description
Technical field
The present invention relates to a kind of pulley block test stand, specifically relate to a kind of for testing tension unwrapping wire process wire and the interactional adjustable pulley block test stand of pulley block.
Background technology
Transmission line Poling Construction releasing pulley is one of main facility of overhead transmission line engineering Poling Construction indispensability.Pulley block is as a major function original paper of releasing pulley, its coefficient of friction resistance and specific payingoff construction parameter as: laying tension, wire are crossed coaster envelope and are crossed in the situations such as coaster number of times that all the construction quality on tension stringing and efficiency have important impact on the damage of wire.
As " transmission line tension stringing releasing pulley " (DL/T371-2010) in in the performance requirement of releasing pulley, explicitly point out the wire releasing pulley coefficient of friction resistance and should be not more than 1.015.
Simultaneously more to the influencing factor of wire damage in transmission line tension stringing process, wherein parameters of construction technology is principal element, and the crucial optimization of construction technology of large-section lead tension stringing and parameter select construction quality, construction period and economy to tension stringing all will produce material impact.
In existing tension stringing construction technology directive/guide on the specified braking tension force of main tensioner solid conductor, the crucial parameters of construction technology of crossing coaster quantity, the envelope angle of wire on releasing pulley etc. and affect tension stringing specifies, as " ± 800kV overhead transmission line tension stringing construction technology directive/guide " (Q/GDW260-2009) and " ± 660kV aerial power transmission line wire tension overhead construction process directive/guide " all specify in (Q/GDW568-2010):
1) " unwrapping wire segment length should be controlled at 6～8km, and should not exceed 20 wires-erecting pulley.In the time exceeding, should take corresponding technical measures.”；
2) " the specified braking tension force of main tensioner solid conductor can be selected by following formula:
T＝K
T?T
P
In formula:
The specified braking tension force of T-main tensioner single conductor, N;
K
t-select the coefficient of the specified braking tension force of main tensioner single conductor.When steel reinforced aluminium conductor, K
t=0.12～0.18.When steel core aluminum alloy stranded wire, K
t=0.09～0.125.Select corresponding coefficient according to concrete geographic and geomorphic conditions.
T
p-quilt is led the guarantee calculating pull-off force of putting wire, N.”；
3) " polar conductor is general with (group) coaster supporting on a base steel tower, but the envelope angle of wire on releasing pulley is while exceeding 30 °, must hang pair releasing pulleys, uses support bar interval between sister block.”。
More than regulation is the comparatively crucial technological parameter of tension stringing construction, larger to wire damage and unfolding quality influence.
Carry out the pulley block coefficient of friction resistance and payingoff construction parameter to the test of wire damage influence in, need to cross pulley envelope angle to the pulley block number of times of wire process and wire and adjust, thereby obtain data accurately.At present, also there is no to meet the device of above-mentioned requirements.
Summary of the invention
In order to address the above problem, the invention provides a kind of adjustable pulley block test stand, impact for detection of the pulley block coefficient of friction resistance and payingoff construction technological parameter on wire damage, can meet the demand of pulley block development, detection and tension stringing determine operating parameter and optimization.
The object of the invention is to adopt following technical proposals to realize:
The adjustable pulley block test stand of one provided by the invention, comprise pulley yoke and pulley block, described pulley yoke is frame structure, and vertical spacing is provided with mobile jib, described pulley block is arranged on mobile jib, and its improvements are: between described pulley block and mobile jib, be provided with adjustment cushion block.
Wherein, described mobile jib is that two symmetrically arranged H shaped steel form, and the quantity of described mobile jib is 4.
Wherein, between described two H shaped steel and be provided with web member between described mobile jib.
Wherein, described web member is angle steel, and described mobile jib and web member are for being welded to connect.
Wherein, be arranged on the quantity of the adjustment cushion block on mobile jib described in each unequal.
Wherein, be arranged on the diameter of the pulley block on mobile jib described in each unequal.
Wherein, described pulley block and mobile jib are bolted.
Wherein, described adjustment cushion block and mobile jib are bolted.
Wherein, described adjustment cushion block is steel plate, processes by bonding machine.
Wherein, described pulley yoke is anchored on level ground.
Wherein, prepare described pulley block test stand material and be by weight percentage, C≤0.28%, Mn:1.30～1.80%, Si≤0.75%, P≤0.065%, S≤0.045%, V:0.15～0.25%, Nb:0.005～0.055%, Ti:0.05～0.35%, Cr :≤0.70%, Ni :≤0.80%, iron is surplus.
Wherein, prepare described pulley block test stand material and be by weight percentage, C:0.22%, Mn:1.45%, Si:0.53%, P:0.044%, S:0.032%, V:0.17%, Nb:0.041%, Ti:0.27%, Cr:0.61%, Ni:0.47%, iron is surplus.
Compared with the prior art, the beneficial effect that the present invention reaches is:
1, the whole members of pulley yoke are linked to be entirety by welding, adjust cushion block and pulley block with bolts on pulley yoke, and integral fastening are on ground, has facilitated on-the-spot installation.
2, according to test parameters and requirement, the pulley yoke of combination varying number, adjust the quantity of cushion block and the diameter of pulley block by change, can verify at differential tension, different pulley block wheel footpath, different conductor and cross the pulley block coefficient of friction resistance in the situation of pulley envelope angle.
3, according to test parameters and requirement, the pulley yoke of combination varying number, by adjusting pad number of blocks and the diameter of pulley is installed, can verify different laying tensions, different pulley wheel footpath, differently cross pulley envelope angle and differently cross the damage influence of releasing pulley to wire in coaster number of times situation.
4, simple in structure, economy is strong, is convenient to promote.
5, the material mixture ratio that pulley block test stand adopts, durable, the general material of ratio of rigidity has improved 5%, has extended useful life.
Brief description of the drawings
Fig. 1 is: adjustable pulley block test stand provided by the invention face structural representation;
Fig. 2 is: the plan structure schematic diagram of adjustable pulley block test stand provided by the invention;
Fig. 3 is: the side-looking structural representation after cushion block is adjusted in the installation of adjustable pulley block test stand provided by the invention;
Fig. 4 is: the side-looking structural representation that adjustment cushion block is not installed of adjustable pulley block test stand provided by the invention;
Wherein: 1, pulley yoke; 2, adjust cushion block; 3, pulley block; 4, tested wire.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The present embodiment is taking adjustable pulley block test stand as example, and as shown in Figures 1 to 4, the adjustable pulley block test stand that the embodiment of the present invention provides comprises: pulley yoke 1, adjustment cushion block 2, pulley block 3, tested wire 4; Pulley yoke 1 for frame structure is anchored on level ground, and on pulley yoke 1, vertical spacing is provided with the mobile jib being made up of two symmetrically arranged H shaped steel, and the quantity of mobile jib is four, is welding the web member being made up of angle steel between two H shaped steel and between mobile jib; Pulley block 3 is vertically fixed on by bolt between two H shaped steel of principal post, and tested wire 4 is successively through pulley block 3; Between pulley block 3 and mobile jib, be bolted and adjust cushion block 2, can adjust the height of pulley block 3, thereby adjust the envelope angle of tested wire 4 in the time crossing pulley by adjusting cushion block 2, adjusting cushion block 2 is steel plate, processes by bonding machine.
Wherein, the quantity of the adjustment cushion block 2 on each mobile jib and the diameter of pulley block 3 and grooved can be all unequal; By single adjustable pulley block test stand and combine multiple adjustable pulley test stands, can form the pulley of testing requirement; Adjust quantity and the size of cushion block 2 by change, envelope angle when the tested wire 4 of capable of regulating is crossed pulley; The pulley block 3 of different-diameter and grooved can be installed simultaneously on pulley yoke 1, can realize the adjustment that pulley wheel footpath, grooved, quantity and wire are crossed pulley envelope angle.
According to test parameters and requirement, the pulley yoke 1 of combination varying number, adjust the quantity of cushion block 2 and the diameter of pulley block 3 by change, can verify at differential tension, different pulley block wheel footpath, different conductor and cross the pulley block coefficient of friction resistance in the situation of pulley envelope angle; Also can verify that different laying tensions, different pulley are taken turns footpath, difference crosses pulley envelope angle and difference is crossed the damage influence of releasing pulley to wire in coaster number of times situation simultaneously.
Wherein, the material that adjustable pulley block test stand adopts is by weight percentage, C≤0.28%, Mn:1.30～1.80%, Si≤0.75%, P≤0.065%, S≤0.045%, V:0.15～0.25%, Nb:0.005～0.055%, Ti:0.05～0.35%, Cr :≤0.70%, Ni :≤0.80%, iron is surplus.
The material that adjustable pulley block test stand in the present embodiment adopts is by weight percentage, C:0.22%, Mn:1.45%, Si:0.53%, P:0.044%, S:0.032%, V:0.17%, Nb:0.041%, Ti:0.27%, Cr:0.61%, Ni:0.47%, iron is surplus.Above-mentioned material is durable, and rigidity has improved 5% than general material, and also greatly improve useful life.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not depart from any amendment of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.
Claims (10)
1. an adjustable pulley block test stand, comprise pulley yoke and pulley block, described pulley yoke is frame structure, and vertical spacing is provided with mobile jib, described pulley block is arranged on mobile jib, it is characterized in that: between described pulley block and mobile jib, be provided with adjustment cushion block.
2. adjustable pulley block test stand as claimed in claim 1, is characterized in that, described mobile jib is that two symmetrically arranged H shaped steel form, and the quantity of described mobile jib is 4.
3. adjustable pulley block test stand as claimed in claim 2, is characterized in that, between described two H shaped steel and be provided with web member between described mobile jib.
4. adjustable pulley block test stand as claimed in claim 3, is characterized in that, described web member is angle steel, and described mobile jib and web member are for being welded to connect.
5. adjustable pulley block test stand as claimed in claim 1, is characterized in that, the quantity that is arranged on the adjustment cushion block on mobile jib described in each is unequal.
6. adjustable pulley block test stand as claimed in claim 1, is characterized in that, the diameter that is arranged on the pulley block on mobile jib described in each is unequal.
7. adjustable pulley block test stand as claimed in claim 1, is characterized in that, described pulley block and mobile jib are bolted.
8. adjustable pulley block test stand as claimed in claim 1, is characterized in that, described adjustment cushion block and mobile jib are bolted.
9. adjustable pulley block test stand as claimed in claim 1, is characterized in that, described adjustment cushion block is steel plate, processes by bonding machine.
10. adjustable pulley block test stand as claimed in claim 1, is characterized in that, described pulley yoke is anchored on level ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410189793.6A CN103956682B (en) | 2014-05-07 | 2014-05-07 | A kind of adjustable pulley block test stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410189793.6A CN103956682B (en) | 2014-05-07 | 2014-05-07 | A kind of adjustable pulley block test stand |
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| Publication Number | Publication Date |
|---|---|
| CN103956682A true CN103956682A (en) | 2014-07-30 |
| CN103956682B CN103956682B (en) | 2018-05-01 |
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| CN201410189793.6A Active CN103956682B (en) | 2014-05-07 | 2014-05-07 | A kind of adjustable pulley block test stand |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192640A (en) * | 2014-08-22 | 2014-12-10 | 国家电网公司 | Guide wire detecting device |
| CN104374566A (en) * | 2014-12-03 | 2015-02-25 | 国家电网公司 | Conductor passing pulley experiment rack |
| CN104792515A (en) * | 2015-05-12 | 2015-07-22 | 中国电力科学研究院 | Paying-off pulley test rack |
| CN108908408A (en) * | 2018-08-22 | 2018-11-30 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Robot testing's device and test method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201013354Y (en) * | 2007-03-12 | 2008-01-30 | 王丽 | Test rack |
| FR2931237A3 (en) * | 2008-05-19 | 2009-11-20 | Renault Sas | Mechanical resistance testing installation for e.g. motor vehicle, has pulleys for offering guiding path among set of guiding paths to cable by selecting or adjusting position of anchor point in one of pulleys |
| CN201478732U (en) * | 2009-06-23 | 2010-05-19 | 浙江省送变电工程公司 | Paying-off block of ultrahigh voltage power transmission line |
| CN202217968U (en) * | 2011-09-08 | 2012-05-09 | 河南省电力公司周口供电公司 | Lifting type paying-off tackle for wires in power distribution lines |
| CN203501987U (en) * | 2013-10-09 | 2014-03-26 | 国家电网公司 | Fixed-length small-span ground wire length measuring device |
| CN203859442U (en) * | 2014-05-07 | 2014-10-01 | 国家电网公司 | Adjustable paying-off pulley testing rack |
-
2014
- 2014-05-07 CN CN201410189793.6A patent/CN103956682B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201013354Y (en) * | 2007-03-12 | 2008-01-30 | 王丽 | Test rack |
| FR2931237A3 (en) * | 2008-05-19 | 2009-11-20 | Renault Sas | Mechanical resistance testing installation for e.g. motor vehicle, has pulleys for offering guiding path among set of guiding paths to cable by selecting or adjusting position of anchor point in one of pulleys |
| CN201478732U (en) * | 2009-06-23 | 2010-05-19 | 浙江省送变电工程公司 | Paying-off block of ultrahigh voltage power transmission line |
| CN202217968U (en) * | 2011-09-08 | 2012-05-09 | 河南省电力公司周口供电公司 | Lifting type paying-off tackle for wires in power distribution lines |
| CN203501987U (en) * | 2013-10-09 | 2014-03-26 | 国家电网公司 | Fixed-length small-span ground wire length measuring device |
| CN203859442U (en) * | 2014-05-07 | 2014-10-01 | 国家电网公司 | Adjustable paying-off pulley testing rack |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192640A (en) * | 2014-08-22 | 2014-12-10 | 国家电网公司 | Guide wire detecting device |
| CN104374566A (en) * | 2014-12-03 | 2015-02-25 | 国家电网公司 | Conductor passing pulley experiment rack |
| CN104792515A (en) * | 2015-05-12 | 2015-07-22 | 中国电力科学研究院 | Paying-off pulley test rack |
| CN108908408A (en) * | 2018-08-22 | 2018-11-30 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Robot testing's device and test method |
| CN108908408B (en) * | 2018-08-22 | 2023-12-12 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Robot testing device and testing method |
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|---|---|
| CN103956682B (en) | 2018-05-01 |
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