CN203518908U - Bending radius measuring ruler - Google Patents
Bending radius measuring ruler Download PDFInfo
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- CN203518908U CN203518908U CN201320591630.1U CN201320591630U CN203518908U CN 203518908 U CN203518908 U CN 203518908U CN 201320591630 U CN201320591630 U CN 201320591630U CN 203518908 U CN203518908 U CN 203518908U
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- radius
- cable
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- gage
- bending radius
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Abstract
A bending radius measuring ruler comprises a front support plate (2), a rear support plate (3), a measuring sheet storage groove (5), inner bending radius measuring rulers (4), outer bending radius measuring rulers (8), cable radius measuring sheets (6) and a root straight-line distance measuring sheet (7). The inner bending radius measuring rulers (4) and the outer bending radius measuring rulers (8) are respectively riveted between the front support plate (2) and the rear support plate (3) by rivets and are respectively arranged on the left side and the right side. The measuring sheet storage groove (5) is connected with the front support plate (2) through a fastener (9). The cable radius measuring sheets (6) and the root straight-line distance measuring sheet (7) are arranged in the measuring sheet storage groove (5). The inner bending radius measuring rulers (4) and the outer bending radius measuring rulers (8) respectively comprise at least one fan-shaped slice which is known in radius. The cable radius measuring sheets (6) are rectangular slices, and arc-shaped openings, which are known in radius, are formed on the edges of the rectangular slices. The root straight-line distance measuring sheet (7) is a strip-shaped slice with scales.
Description
Technical field
The utility model relates to a kind of measurement frock of moonlet general assembly Cable Bending Radius, for realizing the measurement of Cable Bending Radius after cable laying on small satellite satellite, is particularly suitable for the bending radius of high frequency, low frequency and LVDS wire on star to carry out accordance interpretation.
Background technology
On small satellite satellite, installing cables generally comprises low frequency, high frequency and LVDS leader cable, in satellite assembly process, first carry out the installation of equipment and the work of laying of cable, then the electric connector at cable two ends is plugged on relevant device, then carries out final Cable Management, colligation and steady job according to cable louding, point of fixity position.
In cable laying and arrangement, fixing process, Cable Bending Radius and root straight-line segment distance after above-mentioned 3 kinds of cables are installed must meet corresponding mounting process requirement.For example, the inner bend radius of low-frequency cable generally should be not less than 4 times of the outside diameter of cable, and its length of straigh line near plug root is generally not less than 30mm; The inner bend radius of flexible high frequency cable generally should be not less than 5 times of the outside diameter of cable, and its length of straigh line near plug root is generally not less than 20mm; The minimum inner bend radius of LVDS leader cable generally should be not less than 10 times of the outside diameter of cable, and after its cable hood pyrocondensation belt, length of straigh line is generally not less than 15mm.
After on star, cable was installed in the past, owing to lacking professional survey instrument, reviewer to cable laying after the meeting result and can only rely on naked eyes and ruler roughly to carry out interpretation and check of bending radius, cause interpretation to have inaccurate risk.Before interpretation bending radius, first to use vernier caliper measurement cable body diameter, according to the requirement in standard, calculate theoretical bending radius again, then estimate home position and measure real radius size with ruler, this kind of method of operating not only loaded down with trivial details, but also estimate inaccurate, and when the small space operation of using the instruments such as vernier caliper, tape measure on star, have the scratch danger of other cables, equipment of instrument, checkability is low simultaneously.
Utility model content
Technology of the present utility model is dealt with problems and is: overcome on existing star high and low frequency and LVDS leader cable install fixing after Cable Bending Radius can not survey, indeterminable problem, a kind of moonlet general assembly Cable Bending Radius special measurement frock is provided, can be intuitively, convenience, Measurement accuracy cable body radius, bending radius and root straight-line segment distance, one chi is multiplex, promote checkability, reduce operational risk.
Technical solution of the present utility model is: a kind of bending radius dip stick, comprises fore-stock plate, after-poppet plate, amount sheet storage tank, inner bend radius gage, outside sweep radius gage, cable half mass runoff sheet and root straight-line segment distance measurements sheet; Inner bend radius gage by rivet between fore-stock plate and after-poppet plate and be positioned at left side, outside sweep radius gage by rivet between fore-stock plate and after-poppet plate and be positioned at right side; Amount sheet storage tank is connected with fore-stock plate by securing member, in cable half mass runoff sheet and the root straight-line segment distance measurements sheet amount of being placed on sheet storage tank; Described inner bend radius gage comprises the fan-shaped flake that at least one radius is known, described outside sweep radius gage also comprises the fan-shaped flake that at least one radius is known, described cable half mass runoff sheet is the rectangular tab that edge leaves the arc section opening that radius is known, and described root straight-line segment distance measurements sheet is the bar shaped thin slice with size scale.
The quantity of the fan-shaped flake that described inner bend radius gage or outside sweep radius gage comprise is 25.The quantity of described cable half mass runoff sheet is 3, comprises altogether 22 of arc section openings.Described root straight-line segment distance measurements sheet is 1, and size scale has 3, and 3 size scales are corresponding low-frequency cable, high frequency cable, LVDS cable desired root straight-line segment distance after laying completes respectively.
The utility model advantage is compared with prior art:
(1) the utility model solved in the past on star high and low frequency and LVDS leader cable install fixing after Cable Bending Radius can not survey, indeterminable problem, utilize 4 class dip stick sheets can accurately measure respectively the bending radius (external diameter) after the body radius of tested cable, the bending radius (internal diameter) after tested cable laying, tested cable laying, tested cable laying back root part straight-line segment distance, can intuitive and accurately to all standard parameter after cable laying, carry out accordance interpretation;
(2) in the utility model for high and low frequency and the LVDS leader cable of conventional kind, specification on star, design gage and the amount sheet of current cable radius largest enveloping scope, the cable of all specifications of using on current star is all included in tested scope, and versatility is stronger;
(3) the utility model is little for moonlet volume, the feature that operating space is narrow and small, except being designed with inner bend radius gage, in the time cannot measuring inner bend radius due to space interference, also is furnished with outside sweep radius gage, can from space, to cable, measure by inside and outside both direction, improve the operation possibility that on star, Cable Bending Radius is measured;
(4) equal carved with mark on the utility model inner bend radius gage 4, outside sweep radius gage 8, this sign has been done transformation.According to cable body radius distance value and requirement, calculate respective curved radius.Operator has saved and has measured the trouble of calculating again after body radius, can choose intuitively, fast corresponding bending radius gage, has promoted checkability;
(5) this small product size is less, easy to carry, one chi is multiplex, simple to operate, can measure cable body radius, bending radius and a plurality of numerical value of root straight-line segment distance simultaneously, substitute the trouble that need use the multiple types of tools such as ruler, slide calliper rule while in the past operating, reduced the operation of broadcasting TV programs by satellite of a plurality of instruments and caused the risk of colliding with, improved processing safety.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the utility model bending radius dip stick;
Fig. 2 is for being used the utility model dip stick to measure bending radius (internal diameter) schematic diagram, and wherein Fig. 2 (a) is qualified for measuring, and Fig. 2 (b) is defective for measuring;
Fig. 3 is for being used the utility model dip stick to measure bending radius (external diameter) schematic diagram, and wherein Fig. 3 (a) is qualified for measuring, and Fig. 3 (b) is defective for measuring;
Fig. 4 is the cable half mass runoff sheet schematic diagram of the utility model dip stick;
Fig. 5 is that the utility model dip stick is measured root straight-line segment apart from schematic diagram.
Embodiment
As shown in Figure 1, the utility model, for the measurement frock of moonlet general assembly Cable Bending Radius, comprises fore-stock plate 2, after-poppet plate 3, amount sheet storage tank 5, inner bend radius gage 4, outside sweep radius gage 8 and cable half mass runoff sheet 6, root straight-line segment distance measurements sheet 7.Inner bend radius gage 4 is riveted between fore-stock plate 2 and after-poppet plate 3 by rivet 1 and is positioned at left side, and outside sweep radius gage 8 is riveted between fore-stock plate 2 and after-poppet plate 3 by rivet 1 and is positioned at right side.Amount sheet storage tank 5 links together by securing member 9 and fore-stock plate 2, in amount sheet storage tank 5, is placed with cable half mass runoff sheet 6, root straight-line segment distance measurements sheet 7.
According to the difference of high and low frequency on star and LVDS leader cable kind and specification, design 25 altogether of inner bend radius gages 4,25 altogether of outside sweep radius gages 8,3 altogether of cable half mass runoff sheets 6,1 altogether of root straight-line segment distance measurements sheet 7.
The design concept of this frock is: according to the requirement of Interventions Requested after cable dress star technical requirement and dress star, during this Fixture Design, comprise altogether 4 kinds of gages, be respectively used to measure high and low frequency cable body radius, inner bend radius, outside sweep radius, cable root straight-line segment distance after laying.During design, first for cable type on current star, determine cable body half mass runoff sheet quantity.Low frequency (by R2-R20mm, 1mm/1 shelves), high frequency (by R2-R5mm, 0.5mm/1 shelves) and LVDS cable (R3.7) radius specification amount to 22, if increase to some extent can corresponding recruitment sheet quantity for follow-up kind.Again according to cable body numerical value, calculate bending radius (inside and outside) value after the minimum cable laying that each specification radius is corresponding, and produce fan-shaped inside and outside mass runoff sheet and be respectively 25.During use, owing to operating space problem on star, in or beyond corresponding choosing, mass runoff sheet screws out and is placed on cable bend place, can go out bending radius Qualification by intuitive judgment.In addition, according to cable laying back root part length of straigh line, require to produce high and low frequency and the LVDS cable amount sheet of totally 3 kinds of range specifications (15mm, 20mm, 30mm), during measurement, amount sheet is placed on to cable root, if straight-line segment distance exceed corresponding groove be qualified.
The cable half mass runoff sheet 6 of first withdrawal amount sheet storage tank 5 interior placements during use, as shown in Figure 4, body radius to cable is measured, then according to high frequency or low-frequency cable classification, in the past between supporting plate 2, after-poppet plate 3, screw out the inner bend radius gage 4 of left side respective cable, according to the sign of indicating on chi, choosing the inner bend radius of corresponding gage after to cable laying measures, if the actual inner bend radius of cable is more than or equal to this gage bending radius, judge cable installation qualification, if be less than this gage bending radius, judge that cable installation is defective.If owing to operating spacial influence on star, cannot measure cable inner bend radius, in the past between supporting plate 2, after-poppet plate 3, screw out the outside sweep radius gage 8 of right side respective cable, according to the sign of indicating on chi, choose the outside sweep radius of corresponding gage after to cable laying and measure, the same internal diameter of interpretation method.Fig. 2, Fig. 3 are for measuring inside and outside bending radius schematic diagram.
After bending radius interpretation, regain gage.Root straight-line segment distance measurements sheet 7 in withdrawal amount sheet storage tank 5, carries out the interpretation of cable root straight-line segment distance according to sign on it again, and it is qualified being more than or equal to tag line, and it is defective being less than tag line, and Fig. 5 is root straight-line segment range observation schematic diagram.
While adopting the utility model moonlet general assembly Cable Bending Radius special measurement frock to carry out after cable laying that bending radius is measured, implement according to the following steps:
1, the cable half mass runoff sheet 6 of withdrawal amount sheet storage tank 5 interior placements, measures the body radius of cable.After measurement in the amount of putting back to sheet storage tank 5;
2, in the middle of the past supporting plate 2, after-poppet plate 3, screw out the inner bend radius gage 4 of left side respective cable, according to the body radius of cable, according to the sign being carved with on chi, choose corresponding gage;
3, inner bend radius gage 4 is moved to correct position directly over tested cable;
4, the inner bend radius after using gage to cable laying is measured.If cannot measure internal diameter, can use right side outside sweep radius gage 8 instead and measure;
5, after measurement, the gage of arranged on left and right sides is all retracted among fore-stock plate 2, after-poppet plate 3;
6, the root straight-line segment distance measurements sheet 7 of withdrawal amount sheet storage tank 5 interior placements;
7, root straight-line segment distance measurements sheet 7 is moved to tested cable root position;
8, use root straight-line segment distance measurements sheet 7 to measure cable root straight-line segment distance;
9, measure after by the amount sheet amount of being returned to sheet storage tank 5.
The content not being described in detail in the utility model instructions belongs to those skilled in the art's known technology.
Claims (4)
1. a bending radius dip stick, is characterized in that: comprise fore-stock plate (2), after-poppet plate (3), amount sheet storage tank (5), inner bend radius gage (4), outside sweep radius gage (8), cable half mass runoff sheet (6) and root straight-line segment distance measurements sheet (7); Inner bend radius gage (4) is riveted between fore-stock plate (2) and after-poppet plate (3) by rivet (1) and is positioned at left side, and outside sweep radius gage (8) is riveted between fore-stock plate (2) and after-poppet plate (3) by rivet (1) and is positioned at right side; Amount sheet storage tank (5) is connected with fore-stock plate (2) by securing member (9), in cable half mass runoff sheet (6) and root straight-line segment distance measurements sheet (7) amount of being placed on sheet storage tank (5); Described inner bend radius gage (4) comprises the fan-shaped flake that at least one radius is known, described outside sweep radius gage (8) also comprises the fan-shaped flake that at least one radius is known, described cable half mass runoff sheet (6) is for leaving the rectangular tab of the arc section opening that radius is known in edge, and described root straight-line segment distance measurements sheet (7) is the bar shaped thin slice with size scale.
2. a kind of bending radius dip stick according to claim 1, is characterized in that: the quantity of the fan-shaped flake that described inner bend radius gage (4) or outside sweep radius gage (8) comprise is 25.
3. a kind of bending radius dip stick according to claim 1, is characterized in that: the quantity of described cable half mass runoff sheet (6) is 3, comprises altogether 22 of arc section openings.
4. a kind of bending radius dip stick according to claim 1, it is characterized in that: described root straight-line segment distance measurements sheet (7) is 1, size scale has 3, and 3 size scales are corresponding low-frequency cable, high frequency cable, LVDS cable desired root straight-line segment distance after laying completes respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591630.1U CN203518908U (en) | 2013-09-24 | 2013-09-24 | Bending radius measuring ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591630.1U CN203518908U (en) | 2013-09-24 | 2013-09-24 | Bending radius measuring ruler |
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| CN203518908U true CN203518908U (en) | 2014-04-02 |
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| CN201320591630.1U Expired - Lifetime CN203518908U (en) | 2013-09-24 | 2013-09-24 | Bending radius measuring ruler |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627875A (en) * | 2014-11-26 | 2016-06-01 | 约翰内斯·海德汉博士有限公司 | Length measuring device |
| CN107407548A (en) * | 2014-12-02 | 2017-11-28 | 通用电气石油和天然气英国有限公司 | The angular displacement of flexible pipe |
| CN108534646A (en) * | 2018-05-29 | 2018-09-14 | 广东联塑科技实业有限公司 | A kind of survey tool for measuring helical corrugation type tubing mean inside diameter |
| CN109839084A (en) * | 2019-01-25 | 2019-06-04 | 国家电网有限公司 | A kind of turning radius detection device of high voltage single-core cable, system and method |
-
2013
- 2013-09-24 CN CN201320591630.1U patent/CN203518908U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627875A (en) * | 2014-11-26 | 2016-06-01 | 约翰内斯·海德汉博士有限公司 | Length measuring device |
| CN105627875B (en) * | 2014-11-26 | 2020-05-08 | 约翰内斯·海德汉博士有限公司 | Length measuring device |
| CN107407548A (en) * | 2014-12-02 | 2017-11-28 | 通用电气石油和天然气英国有限公司 | The angular displacement of flexible pipe |
| US10495437B2 (en) | 2014-12-02 | 2019-12-03 | Ge Oil & Gas Uk Limited | Angular displacement of flexible pipe |
| CN107407548B (en) * | 2014-12-02 | 2020-02-14 | 通用电气石油和天然气英国有限公司 | Angular displacement of flexible pipe |
| CN108534646A (en) * | 2018-05-29 | 2018-09-14 | 广东联塑科技实业有限公司 | A kind of survey tool for measuring helical corrugation type tubing mean inside diameter |
| CN109839084A (en) * | 2019-01-25 | 2019-06-04 | 国家电网有限公司 | A kind of turning radius detection device of high voltage single-core cable, system and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
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| CX01 | Expiry of patent term |