CN205981044U - Bridge dimension measurement instrument - Google Patents
Bridge dimension measurement instrument Download PDFInfo
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- CN205981044U CN205981044U CN201620924781.8U CN201620924781U CN205981044U CN 205981044 U CN205981044 U CN 205981044U CN 201620924781 U CN201620924781 U CN 201620924781U CN 205981044 U CN205981044 U CN 205981044U
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- main scale
- chi
- bridge
- boss
- measuring claw
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Abstract
The utility model relates to a bridge dimension measurement instrument, including main scale and sliding ruler, main scale and sliding ruler lower extreme are equipped with measuring claw, have the chi body that is equipped with the scale on the main scale, sliding ruler is last be equipped with with the rule sleeve of main scale chi body size adaptation, the main scale chi horizontal slip in rule sleeve that personally experiences sth. Part of the body, be equipped with the taut part of elasticity on the main scale, it is taut through the taut part horizontally connect of elasticity between main scale and sliding ruler, main scale and sliding ruler lower extreme are equipped with perpendicular to measuring claw's first boss and second boss, are equipped with the screw in the second boss, and adjusting screw passes the screw and offsets with first boss. The utility model discloses bridge dimension measurement instrument can make things convenient for and detect the bridge width rapidly, has the automatic bridge of looking for apart from the function, slide caliper traditional relatively, and operation is more simple and convenient.
Description
Technical field
This utility model is related to chemical industry equipment and manufactures field and in particular to detecting the measuring instrument of the bridge width on flat board,
The measuring instrument of the bridge width of Tube Sheet of Heat Exchanger plate hole in the range of particularly GB151-2014.
Background technology
In manufacturing field of equipment, the particularly heat exchange equipment of chemical industry equipment, carry out an acceptance inspection after the punching of drilling of tubesheet machine
When, bridge width size need to be detected.
In current checkout procedure, coroner generally uses slide gauge detection bridge width, if running into major diameter
Tube sheet, the quantity of needs detection is extremely many, and coroner often examines a bridge, need to be repeated once the behaviour looking for holes minimum range, reading
Make process.And use vernier caliper measurement, applying strength with handss could find bridge size, slide gauge operation side with inner measuring jaw
Formula and test position inconvenience, reading inconvenience when easily causing surveyor's arm Fatigue, and operating.
Content of the invention
For the problem overcoming prior art to exist, by the optimization design to slide gauge, this utility model provides one
Plant structure relatively simple bridge gauging instrument.
For realizing above-mentioned technical purpose, this utility model adopts the following technical scheme that：
A kind of bridge gauging instrument, including main scale and slip chi, main scale and slip chi lower end are provided with measuring claw, on main scale
Set graduated chi body, slip chi is provided with the chi set with main scale chi body size fit, main scale chi body level in chi covers is slided
Dynamic；Main scale is provided with elastic tensioning part, and main scale is connected tension with between slip chi by elastic tensioning component level；Main scale and
Slip chi lower end is provided with first boss and the second boss perpendicular to measuring claw, is provided with screw in second boss, and adjusting screw rod is worn
Cross screw to offset with first boss.
As further improvement of the utility model, described main scale and slip chi are additionally provided with handle, for adjusting measurement
Distance between pawl.The handle of main scale and slip chi interlocks and fits tightly, and is easy to adjust distance between measuring claw.
As further improvement of the utility model, described chi puts and is provided with digital display device, shows measurement result.Further
, setting dump block and calibration module in described digital display device.Measuring instrument of the present utility model can adopt digital display type vernier cursor,
Digital display device comprises switch, dump block and calibration module；It is clear that the graduation mark of main scale needs, sufficiently fine but need to ensure well readable
Property；Digital display device dump block is used for the measurement data before removing；Calibration module is used for calibration figure.
As further improvement of the utility model, described measuring claw medial surface is arc.Measuring claw needs and treats gaging hole
Inwall fit, inside measuring claw be arc, and radian be equal to or less than internal diameter radian, make inside measuring claw with the hole wall to be measured
For linear contact lay, laminating degree is higher.
As further improvement of the utility model, described first boss and second boss are semicylinder, and lower surface is
Plane, upper surface is arc surface.Boss lower surface is contacted with plate face to be measured, and boss is semicylinder, and plate face contact surface to be measured
For plane, can preferably support chi body, it is to avoid chi body run-off the straight.
As further improvement of the utility model, described measuring claw, main scale chi body are flexibly connected with adopting between measuring instrument,
Measuring claw, main scale chi body replaceable different size specification.By designing the main scale chi body length of different length, go for not
The bridge dimensional gaughing of logical width range, also can adjust length, the radian specification changing measuring claw as needed.
The structure member of this utility model measuring instrument is overall all can be high using the higher stainless steel material of hardness, intensity, resistance to
Mill property is good, and deformation rate is little, antioxidation, to ensure certainty of measurement height and long service life.
Measuring instrument of the present utility model has the advantages that：
Using this utility model bridge gauging instrument, detection bridge width rapidly can be facilitated, have and automatically look for bridge
Range capability, relatively conventional slide gauge, mode of operation is more simple and convenient.
Measuring instrument of the present utility model is of many uses, in addition to can be used for measuring bridge width, it may also be used for detection pipe is ellipse
Circularity.
Brief description
Fig. 1 is that this utility model bridge measures actually used structural representation；
Fig. 2 is this utility model bridge width measuring instrument main scale structural representation；
Fig. 3 is this utility model bridge width measuring instrument slip chi structural representation；
Fig. 4 applies to the standing part blade bending improved structure schematic diagram that little bridge width does；
Fig. 5 is that this utility model bridge width measuring instrument is used for detecting structural representation during pipe ovality.
Specific embodiment
Explanation and specific embodiment are described further to the technical solution of the utility model below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Fig. 1 ~ Fig. 3, a kind of bridge gauging instrument, including main scale 1 and slip chi 2, under main scale 1 and slip chi 2
End is provided with measuring claw 15,25, and described measuring claw 15,25 medial surface are arc；Graduated chi body 16 is set on main scale 1, slides
Chi is provided with the chi set 23 with main scale 1 chi body 16 size fit, and main scale 1 chi body 16 level in chi set 23 is slided；Set on main scale 1
Flexible strain component 13, passes through elastic tensioning part 13 level connection joint and strains between main scale and 1 and slip chi 2；Main scale 1 and slip
Chi 2 lower end is provided with the first boss 14 and second boss 24 perpendicular to measuring claw, and described first boss 14 and second boss 24 are
Semicylinder, lower surface is plane, and upper surface is arc surface, is provided with screw in second boss 24, and adjusting screw rod 26 passes through screw
Offset with first boss 14.Handle 12,22 is additionally provided with described main scale 1 and slip chi 2, for adjusting measuring claw 15,25 spacing
From handle 12 is interlocked with handle 22 and fits tightly, and intensity enough expanding elastic strain component 13 arrives appropriate length.
Described chi set 23 is provided with digital display device, shows measurement result.Setting dump block and school in described digital display device
Quasi-mode block.
Wherein, measuring claw 15,25, main scale chi body 16 between measuring instrument using being flexibly connected, measuring claw 15,25, main scale chi
The replaceable different size specification of body 16.
As shown in figure 4, can be by elongating the boss size of main scale 1, to adapt to undersized inside diameter measurement demand.
The step carrying out bridge measurement using this utility model bridge gauging instrument is specific as follows, to detect GB151-
As a example the straight-through bridge of 2014 heat exchanger tube sheet detections, as shown in Figure 1：
Step one, calibration：Open digital display device switch, the boss on main scale and measuring scale is adjusted direct to two convex surfaces
Contact, by correcting button, now shows that number is actual range inside two measuring claws, calibration completes.
Step 2, adjustment measuring claw minimum spacing：Adjusting screw rod 26 so that inside measuring claw spacing be slightly less than GB151-
The bridge width lower limit of 2014 requirements；
Step 3, detection bridge size：By the measuring instrument regulating, after being opened by handle 12,22 stretching with handss, will measure
Pawl is placed on the in the hole of bridge both sides to be measured, and righting is loosed one's grip after putting well, because of the effect of the elastic force of elastic tensioning part 13, surveys
Two measuring claws of amount instrument can be at minimum range automatically, records the show value of now digital display device, with permitting of standard regulation
Permitted maximin to compare, judged whether bridge width is qualified；
Step 4, continuation detection：After being opened by handle 12,22 stretching with handss, lift instrument, the process pair of repeat step three
Remaining bridge to be measured carry out detection judge whether qualified.
Pipe ellipticity measurement step is carried out using gauging instrument described in embodiment 1 as follows, as shown in Figure 5：
With execute ovality=（Maximum outside diameter-minimum outer diameter）As a example/nominal outside diameter * 100%：
Step one, calibration：Open digital display device switch, the boss on main scale and measuring scale is adjusted direct to two convex surfaces
Contact, by correcting button, now shows that number is actual range inside two measuring claws, calibration completes.
Step 2, setting zero point：Adjusting measuring claw distance to digital display value is pipe nominal diameter to be measured, arranges zero point；
Step 3, adjustment measuring claw minimum spacing：Adjusting screw rod 26 is so that spacing is to appropriate value inside measuring jaw；
Step 4, calculating desired value：Requirement ellipse angle value according to normative document and nominal outside diameter, calculate max（Maximum
External diameter-minimum outer diameter）Value=a；
Step 5, detection：Measuring instrument two measuring claw is stuck in outside pipe to be measured and rotates 180 ° in same position, digital display
Device record simultaneously shows maximum positive/negative deviant between measuring claw, that is, between the measuring claw in a measure the cycle minimum range and
Ultimate range is oppositely arranged the difference of zero point, the absolute value of the minimax offset deviation on digital display device display screen is added and obtains
To b, compare with step 4 value of calculation, the ovality at such as a >=b then pipe measurement position is qualified, otherwise unqualified；
Step 6, continuation detection：After the completion of one-time detection, press the key that clears data and remove this detection data, repeat step
Five, carry out subsequent detection and judgement.
Claims (7)
1. a kind of bridge gauging instrument, including main scale and slip chi, main scale and slip chi lower end are provided with measuring claw, and main scale has
If graduated chi body, slip chi is provided with the chi set with main scale chi body size fit, and main scale chi body level in chi covers is slided；
It is characterized in that, main scale is provided with elastic tensioning part, and main scale is drawn with being connected by elastic tensioning component level between slip chi
Tightly；Main scale and slip chi lower end are provided with first boss and the second boss perpendicular to measuring claw, are provided with screw in second boss, adjust
Section screw rod is offseted through screw with first boss.
2. bridge gauging instrument according to claim 1 is it is characterised in that be additionally provided with handss on described main scale and slip chi
Handle, for adjusting distance between measuring claw.
3. bridge gauging instrument according to claim 1, it is characterised in that described chi puts and is provided with digital display device, shows
Show measurement result.
4. bridge gauging instrument according to claim 3 is it is characterised in that arrange dump block in described digital display device
And calibration module.
5. bridge gauging instrument according to claim 1 is it is characterised in that described measuring claw medial surface is arc.
6. bridge gauging instrument according to claim 1 is it is characterised in that described first boss and second boss are half
Cylinder, lower surface is plane, and upper surface is arc surface.
7. bridge gauging instrument according to claim 1 is it is characterised in that described measuring claw, main scale chi body and measurement
Using flexible connection, measuring claw, main scale chi body replaceable different size specification between instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620924781.8U CN205981044U (en) | 2016-08-24 | 2016-08-24 | Bridge dimension measurement instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620924781.8U CN205981044U (en) | 2016-08-24 | 2016-08-24 | Bridge dimension measurement instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205981044U true CN205981044U (en) | 2017-02-22 |
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ID=58034184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620924781.8U Active CN205981044U (en) | 2016-08-24 | 2016-08-24 | Bridge dimension measurement instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205981044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797869A (en) * | 2020-12-29 | 2021-05-14 | 霍山嘉远智能制造有限公司 | Instrument for detecting side hole in inner cavity of orifice valve |
-
2016
- 2016-08-24 CN CN201620924781.8U patent/CN205981044U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797869A (en) * | 2020-12-29 | 2021-05-14 | 霍山嘉远智能制造有限公司 | Instrument for detecting side hole in inner cavity of orifice valve |
| CN112797869B (en) * | 2020-12-29 | 2024-02-09 | 霍山嘉远智能制造有限公司 | Instrument for detecting side holes in inner cavity of orifice plate valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |