CN201225879Y - Tool for detecting hole eccentricity degree - Google Patents
Tool for detecting hole eccentricity degree Download PDFInfo
- Publication number
- CN201225879Y CN201225879Y CNU2008201043894U CN200820104389U CN201225879Y CN 201225879 Y CN201225879 Y CN 201225879Y CN U2008201043894 U CNU2008201043894 U CN U2008201043894U CN 200820104389 U CN200820104389 U CN 200820104389U CN 201225879 Y CN201225879 Y CN 201225879Y
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- connection plate
- measuring rod
- degree
- web joint
- vertical web
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a boring eccentricity detection tool, which comprises a measuring rod, a vertical connection plate, a horizontal connection plate and a spiral gauge with scales or a caliper with scales, wherein, the measuring rod is paralleled to the vertical connection plate, and the measuring rod is connected with the vertical connection plate by a horizontal connection plate, and the spiral gauge with scales or the caliper with scales is mounted on the bottom of the vertical connection plate. The detection tool has the advantages of high precision, simple, convenient and rapid operation, good collision resistance, good abrasion resistance, strong fault-tolerant capacity, simple structure, low cost and the like. The detection tool is applied to the eccentricity detection of the steel anchor hole that is a narrow cylindrical body, and the eccentricity detection of other holes.
Description
Technical field
The utility model relates to a kind of machine work testing tool, a kind of specifically drilling degree of eccentricity testing tool.It can be used for the non-detection that runs through type strain insulator hydraulic tube steel anchor drilling degree of eccentricity.
Technical background
In work transmission line, strain insulator hydraulic tube steel anchor is bearing the pulling force of lead steel core, is main stressed member, and the processing quality of its processing influences great to power transmission engineering and seems especially crucial.In recent line construction process, we find on certain bar circuit, the strain insulator pipe steel anchor that certain producer provides, the eccentric phenomena that its drilling existence is made us being very worried.And because the aperture is little, the degree of depth is big, endcapped, because of there not being easy testing tool or with high costs because of looking into survey, cause each manufacturer all not carry out effective eccentricity detecting, the rules standard detects content arrangement to on-the-spot routine inspection also no this item, unit in charge of construction will be used for the scene without the steel anchor of eccentricity detecting, steel anchor crimping up to indivedual eccentric degree severe overweights produces cracking, just exposes eccentric drilling problem place.Through spot-check the not steel anchor of usefulness (the sawed-off detection), find the steel anchor drilling considerable part existence off-centre in various degree of this producer.As everyone knows, after the eccentric steel anchor crimping grip of steel core caused to have a strong impact on, probably can cause broken string, accident such as tower, even can cause personal injury.
The non-aperture little (less than 8mm) of running through the drilling of type strain insulator hydraulic tube steel anchor, the degree of depth big (about 10cm-12cm), single-ended sealing.Measure the bottom eccentric degree of such narrowed aperture, ripe at present method is to adopt three coordinate measuring machine, measures with accurate probe.It generally is used for Aero-Space and other need the field of precision measurement, and the price of each one is in hundreds of thousands unit.In addition, also have various laser equipments and ultrasonic equipment to use.Their common feature is exactly very strict to environmental requirement, complicated operation, and computation process is loaded down with trivial details, and price is all high.
Because the field work character of work transmission line, environmental facies are to badly.Adopt such instrument to detect at the construction field (site), cost height not only, and can be because factor affecting precision such as sunshine, winds, and may damage instrument.Therefore adopt above-mentioned detecting instrument and improper at the construction field (site).Therefore we have worked out a kind of easy survey instrument in conjunction with the actual conditions of power transmission engineering, can carry out surveying work at the scene quickly and easily.
The utility model content
The purpose of this utility model is the actual conditions in conjunction with power transmission engineering, design a kind of simple in structure, cost of manufacture is low, the testing tool of simple operation, drilling degree of eccentricity that degree of accuracy is high, can carry out testing at the construction field (site) quickly and easily.
In order to solve the problems of the technologies described above, the technical solution of the utility model is:
A kind of drilling degree of eccentricity testing tool, it comprises the spiral chi of measuring rod, vertical web joint, horizontal connecting plate and band scale or the slide calliper rule of being with scale, measuring rod is parallel to each other with vertical web joint, by horizontal connecting plate they are connected, the slide calliper rule of the spiral chi of band scale or band scale are connected the bottom of vertical web joint by the long rule rack of the spiral chi frame of being with scale or band scale.
A kind of horizontal connecting plate of drilling degree of eccentricity testing tool with measure rod and be connected with rivet, horizontal connecting plate is connected with rivet with vertical web joint or is connected with screw with regulating tank on the vertical web joint.
The utility model beneficial effect compared with the prior art is:
1. the utility model is simple in structure, and cost of manufacture is cheap.
2. degree of accuracy height, the steel anchor hole eccentricity value limits of error are 1mm, operative norm: GB/T2317, GB/T2314, the degree of accuracy of this instrument can guarantee the level at 0.2mm-0.1mm.The precision of spiral chi is higher.
3. the utility model is applicable to that the drilling of steel anchor is long and narrow right cylinder, and the drilling size of different electric pressures is had any different, the 500kV transmission line of alternation current, and its internal diameter is 8mm.Hole depth is generally at 10-12cm.This instrument can stretch into and measure the related data in so narrow hole.
4. the utility model is easy and simple to handle, rapid, and the method that adopts this instrument to measure is simple, is convenient to promote.Do not need to adopt very complicated intermediate computations or conversion.Measuring speed is fast, is fit to the measurement of typical products in mass production.
5. the utlity model has stronger this instrument of fault-tolerant ability and detection method have considered that all human and environment etc. causes on measuring error, suitable fault-tolerant ability is arranged, staff perspire or slightly shake, measure posture instability, humiture environmental facies to situation such as relatively poor, that wind-force is bigger under, still can keep higher precision.
After instrument was subjected to collision that slight deformation is arranged, measured value did not have bigger change yet.Because can adopt relative measuring method, under the identical situation of Δ value, the measurement result of eccentric degree is consistent.
6. the utlity model has anti-collision, wearing quality is better.Repeatedly measure and also can not cause too macrolesion, and after the part is impaired, still can keep higher precision instrument.
Description of drawings
Fig. 1 is that the utility model measuring appliance is the structural representation of spiral chi.
Fig. 1-the 1st, synoptic diagram is looked on Fig. 1 dotted line right side partly.
Fig. 2 is that the utility model measuring appliance is the structural representation of slide calliper rule.
Fig. 2-the 1st, synoptic diagram is looked on Fig. 3 dotted line right side partly.
Among the figure: measure the slide calliper rule 8 of rod 1, fixing rivet 2, horizontal connecting plate 3, vertical web joint 4, the spiral chi 5 of band scale, the spiral chi frame 6 of being with scale, regulating tank 7, band scale, the long rule rack 9 of band scale.
Embodiment
Below in conjunction with drawings and embodiments the utility model is explained in detail.
The state of strain insulator hydraulic tube steel anchor drilling degree of eccentricity as shown in Figure 1, its degree of eccentricity can detect with the utility model.Structure of the present utility model as shown in Figures 2 and 3.Measuring rod 1 as can be seen from Figure 2 is parallel to each other with vertical web joint 4, by rivet 2 they are connected spiral chi frame 6 or the long rule rack 9 of the band scale bottom that be installed in vertical web joint 4 of the slide calliper rule 9 of the spiral chi 5 of band scale or band scale by the band scale by horizontal connecting plate 3.
The effect of measuring rod is to stretch in the drilling of strain insulator hydraulic tube steel anchor to position, and is connected externally measured spiral chi or slide calliper rule by level with vertical web joint, thereby can measures drilling.By the reading of chi, can directly measure the related data of drilling.
Wherein slide calliper rule adopt the slip chi that is similar to vernier caliper to measure and reading.The spiral chi then is slide calliper rule to be changed into the helical structure of pitch certain (be generally 1mm or 0.5mm, more little precision is high more), and stamps on nut that index dial is measured and reading, is similar to milscale.
Using method of the present utility model
1. visual testing: check earlier whether outward appearance of the present utility model has the situation of damage, distortion, and with the dip stick above the vernier caliper verification whether accurately and reliably.
2. spiral chi or slide calliper rule are adjusted to suitable position, are advisable not touch steel anchor outer wall.To measure rod and stretch in the drilling, drilling bottom circular conical surface (because drilling is that drill bit processes, the bottom has a circular conical surface can be used for auxiliary positioning) should be stretched in its tip.
3. rotating screw chi or mobile gently slide calliper rule gently keep measuring rod and are close to the bottom, hole, and the variable in distance of noting observing spiral chi or slide calliper rule front end and steel anchor outer wall, find the place of eccentric degree maximum, promptly apart from minimum and maximum place.Because judge distance has than mistake, adjustable screw chi or slide calliper rule make its maintenance be close to steel anchor outer wall gently, seek the eccentric degree maximum point with the convergence method according to the situation of change of chi.
4. adjustable screw chi or slide calliper rule are measured eccentric distance herein.
5. will measure rod along excellent circumference Rotate 180 degree, the eccentric distance that repeats 3.3,3.4 process measurement another sides is as the reference verification.
6. number reading method: according to the scale of slide calliper rule or spiral chi, directly read maximum eccentric distance and minimum eccentric distance, whether exceed standard thereby analyze eccentric degree.In addition,, can also adopt the relative difference method of reading for improving precision, because two data of minimum and maximum eccentric distance that gone up planar survey, can be according to formula:
Carry out reading, even this method of reading is after the instrument collision has distortion slightly, measured value is still relatively more accurate: caused the error of Δ after supposing to be out of shape, the maximum eccentric distance becomes maximum eccentric distance+Δ so, minimum eccentric distance becomes minimum eccentric distance+Δ, the above-mentioned formula of substitution:
Under the identical situation of Δ value, the eccentricity value measurement result remains unchanged as can be seen.
Claims (2)
1. drilling degree of eccentricity testing tool, it is characterized in that, it comprises the spiral chi of measuring rod, vertical web joint, horizontal connecting plate and band scale or the slide calliper rule of being with scale, measuring rod is parallel to each other with vertical web joint, by horizontal connecting plate they are connected, the slide calliper rule of the spiral chi of band scale or band scale are connected the bottom of vertical web joint by the long rule rack of the spiral chi frame of being with scale or band scale.
2. a kind of drilling degree of eccentricity testing tool according to claim 1 is characterized in that, horizontal connecting plate is fixed with rivet with measuring rod, and horizontal connecting plate is fixed with rivet with vertical web joint or is connected with screw with regulating tank on the vertical web joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201043894U CN201225879Y (en) | 2008-07-17 | 2008-07-17 | Tool for detecting hole eccentricity degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201043894U CN201225879Y (en) | 2008-07-17 | 2008-07-17 | Tool for detecting hole eccentricity degree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201225879Y true CN201225879Y (en) | 2009-04-22 |
Family
ID=40598772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201043894U Expired - Fee Related CN201225879Y (en) | 2008-07-17 | 2008-07-17 | Tool for detecting hole eccentricity degree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201225879Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458351A (en) * | 2015-12-17 | 2016-04-06 | 芜湖市甬微制冷配件制造有限公司 | Detecting tool probe for drilling depth and deviation size |
-
2008
- 2008-07-17 CN CNU2008201043894U patent/CN201225879Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458351A (en) * | 2015-12-17 | 2016-04-06 | 芜湖市甬微制冷配件制造有限公司 | Detecting tool probe for drilling depth and deviation size |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20160717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |