CN1699944A - Pull tension gauge - Google Patents
Pull tension gauge Download PDFInfo
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- CN1699944A CN1699944A CN 200510049873 CN200510049873A CN1699944A CN 1699944 A CN1699944 A CN 1699944A CN 200510049873 CN200510049873 CN 200510049873 CN 200510049873 A CN200510049873 A CN 200510049873A CN 1699944 A CN1699944 A CN 1699944A
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- piston
- cylinder body
- end cap
- piston rod
- pressure transducer
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Abstract
The invention discloses a draft gauge which comprises an internally-arranged piston practice cylinder with one side space full of hydraulic-oil and the other side posited pressure sensor with its sensing side interconnected with hydraulic-oil; sealed cylinder cod overhangs the end face of high-pressure holder; piston practice exposes both end faces of cylinder; plunger compresses hydraulic-oil, pressure sensor collects the value of compressed hydraulic-oil when one side of cylinder cod weights and the other side with wire rope to hang; mathematical model changes the presser value into force value.
Description
Technical field
The present invention relates to the surveying instrument that use at a kind of deep-sea, be specifically related to a kind of tautness meter that can directly measure the weight of object in the water or the pulling force parameter that equipment is subjected at the deep-sea.
Background technology
At present, to actual weight measure or equipment in submarine sampling process be subjected to the tension measurement of oceanographic equipment in marine (comprising the seabed), all be to obtain through converting by the tautness meter measured value that disposes on the boat-carrying winch, the measured value that is obtained in the particular surroundings of ocean not only measuring accuracy is not high, and with seawater pressure and other sea situation, it is directly relevant that winch is put into marine wirerope length etc., it is long more to put into marine wirerope, sea situation is complicated more, the influence that tautness meter was subjected to when measuring is just big more, can not obtain generally speaking at real own wt of marine equipment or the value of thrust that is subjected to.
Summary of the invention
In order accurately, directly, simply to obtain pulling force and the stressing conditions of ocean sampling equipment in sampling process that oceanographic equipment is subjected in seawater, for example insert the viscosity resistance in the mud, the weight of the seabed object of being arrested etc., the invention discloses a kind of deep-sea tautness meter, use this deep-sea tautness meter accurately, directly, simply to measure the weight of marine equipment or measure the weight of the seabed object of arresting and the viscosity resistance of earth etc., irrelevant with the degree of depth, seawater pressure and other sea situation etc. that oceanographic equipment discharges into the seabed.
To achieve these goals, the technical solution used in the present invention is: described tautness meter comprises pressure transducer, cylinder body, piston component, be connected the cylinder hanger on cylinder body top and be connected the hanger of piston component one end, the cylinder body end is provided with lower cover, between lower cover and cylinder body, be provided with end cap, it is characterized in that: described piston component comprises pressure balancing stem and the piston that is connected with pressure balancing stem, described piston comprises piston head and piston rod, piston rod passes the end cap that is located between cylinder body and lower cover, pressure balancing stem one end then passes the cylinder body top and the external world communicates, described pressure transducer is located at the piston head top, the sensor ends of pressure transducer is hydraulic oil channel and the end cap by being located at piston head inside then, the formed airtight oil pocket of cylinder body and piston is communicated with, on the cylinder hanger, also be provided with the cable plug-in unit that is connected with pressure transducer, described piston head, between piston rod and the cylinder body, between end cap and the piston rod, being connected between pressure transducer and the piston head and between cable plug-in unit and the cylinder body is sealing setting.
Improvement as the present invention, described pressure balancing stem is passed the end face diameter of cylinder part and the end face diameter of piston rod traversing through end cover equates, like this because the both ends of the surface in the outer dew are straight through equating, the height of ignoring tautness meter, think that the pressure that both ends of the surface up and down are subjected to water equates, so, the tautness meter measured value of this structural design will not be subjected to sea water advanced influence.
Optimal way as the present invention, described hydraulic oil channel is a L type passage, L type passage one end connects airtight oil pocket, the other end pressure transducer mounting groove interior with being located at piston head is connected, when passing through the composite-gasket seal operation between pressure transducer and the piston head mounting groove, the pressure that hydraulic oil is subjected to will be delivered to the sensor ends of pressure transducer by L type passage, then by pressure transducer and the output of cable plug-in unit.
As the present invention's optimal way, described end cap is provided with oil hole, and oil hole is provided with plug, then seals with plug in order to dose hydraulic oil, to dose to finish.
As the present invention's optimal way, between described piston head, pressure balancing stem and the cylinder body, between end cap and the piston rod by the O-ring seal motive seal.
As the present invention's optimal way, described pressure balancing stem is connected with piston head by hexagon socket head cap screw.
As a kind of improvement of the present invention, be provided with key with the piston rod joining place on the described end cap, on piston rod, be provided with the keyway corresponding with key, this keyway axial length slightly is longer than key length, can avoid piston rotation like this, because hydraulic oil compression amount is very little, thereby the enough piston components in the space between keyway and key are up and down.
The present invention adopts technique scheme, be not subjected to the influence of the pressure change of water during measurement, when the end at the piston cylinder bar is fastened weight, when the other end is fastened wirerope and is carried out lift heavy, Piston Compression hydraulic oil, by the compressed oil pressure pressure data of pressure transducer collection, by setting up the mathematical model program, pressure values is converted into the power value, reach the purpose of dynamometry, thereby can be accurate, directly, simply measure the weight of marine equipment or measure the weight of the seabed object of arresting and the viscosity resistance of earth etc., discharge the degree of depth into the seabed with oceanographic equipment, seawater pressure and other sea situation etc. are irrelevant.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is an one-piece construction synoptic diagram of the present invention;
Fig. 2 is the installation site synoptic diagram of pressure transducer of the present invention on piston head;
Force analysis synoptic diagram when Fig. 3 works for the present invention.
Embodiment
As shown in Figure 1, tautness meter of the present invention comprises cylinder hanger 1, cylinder body 3, pressure transducer 6, piston component, hanger 14 and lower cover 17, cylinder hanger 1 is installed on the cylinder body 3 by holding screw 18, cylinder body 3 ends are equipped with end cap 11, and be fixed on the cylinder body 3 by lower cover, end cap 11 is provided with oil hole, oil hole is provided with plug 16, on cylinder hanger 1, be provided with the cable plug-in unit 2 that is connected by signal wire with pressure transducer 6, described piston component comprises pressure balancing stem 51 and piston 52, piston 52 is made up of piston head 521 and piston rod 522, pressure balancing stem 51 is fixed on the piston head 521 by hexagon socket head cap screw, piston component is installed in the cylinder body, wherein pressure balancing stem 51 passes cylinder body 5 tops and communicates with extraneous seawater, piston rod 522 passes end cap 11, piston head 521, between pressure balancing stem 51 and the cylinder body 3, between end cap 11 and the piston rod 522 all by O-ring seal 4 motive seals, like this, piston head 521 and end cap 11 and cylinder body 3 are divided into isolated airtight oil pocket 31 and hollow end 32 with the cylinder interior cavity, pressure transducer 6 is installed in the pressure transducer mounting groove 524 that is located on the piston head 521, and by a composite-gasket 8 sealings (its position such as Fig. 2 illustrate), pressure transducer mounting groove 524 and 31 of airtight oil pockets at piston 52 are provided with L type oil passage 523, and 61 of the sensor ends of pressure transducer 6 are passed through L type oil passage 523 and are communicated with airtight oil pocket 31.On described end cap 11, be provided with key 15 with piston rod 522 joining places, on piston rod 522, be provided with the keyway 525 corresponding with key 15, these keyway 525 axial lengths slightly are longer than key length, can avoid piston rotation like this, because hydraulic oil compression amount is very little, thereby the enough piston components in the space between keyway and key are up and down.Pressure balancing stem 51 among the present invention passes the end face diameter of cylinder body 3 parts and end face diameter that piston rod 522 passes end cap 11 parts equates, like this because the both ends of the surface in the outer dew are straight through equating, the height of ignoring tautness meter, think that the pressure that both ends of the surface up and down are subjected to water equates, so, the tautness meter measured value of this structural design will not be subjected to sea water advanced influence.
Because at deep ocean work, high for sealing requirements, thereby the O RunddichtringO that the O-ring seal of starting sealing function has adopted the M168H impregnating resin graphite new material of better performances to make seals, ward off the processing technology that adopts reticulate pattern chromium plating, shot to strengthen in the cylinder sleeve, make sealing surface reach the oil film seal state.The hydraulic oil of this tautness meter employing is YH-10 hydraulic air chilli oil in addition.
As shown in Figure 3, the force analysis synoptic diagram when working for the present invention, wherein F2 is the pulling force of measurand to piston rod, and F3 is the pressure of seawater to pressure balancing stem, and F4 is the pressure of seawater to piston rod, and F5 is the acting force of hydraulic oil to piston.
With piston 52 is research object, gets the equation of static equilibrium, F2+F3=F4+F5, because pressure balancing stem face area and piston rod end face area equate that seawater pressure equates, so F3=F4, get F2=F5, so as long as draw weight or the pulling force that F5 promptly draws measurand.And F5 records hydraulic oil pressure by pressure transducer, by the compressed oil pressure pressure data of pressure transducer collection, by setting up the mathematical model program, pressure values is converted into the power value, reaches the purpose of dynamometry.
Claims (7)
1, a kind of tautness meter, comprise pressure transducer (6), cylinder body (3), piston component, be connected the cylinder hanger (1) on cylinder body (3) top and be connected the hanger (14) of piston component one end, cylinder body (3) end is provided with lower cover (17), between lower cover and cylinder body, be provided with end cap (11), it is characterized in that: described piston component comprises pressure balancing stem (51) and the piston (52) that is connected with pressure balancing stem, described piston (52) comprises piston head (521) and piston rod (522), piston rod (522) passes the end cap (11) that is located between cylinder body and lower cover, pressure balancing stem (51) one ends then pass cylinder body (3) top and the external world communicates, described pressure transducer (6) is located at piston head (521) top, the sensor ends of pressure transducer (61) is the hydraulic oil channel (523) and end cap (11) by being located at piston head inside then, cylinder body (3) and the formed airtight oil pocket of piston (52) (31) are communicated with, on cylinder hanger (1), also be provided with the cable plug-in unit (2) that is connected with pressure transducer (6), described piston head (521), between piston rod (522) and the cylinder body (3), between end cap (11) and the piston rod (522), being connected between pressure transducer (6) and the piston head (512) and between cable plug-in unit (2) and the cylinder body (3) is sealing setting.
2, according to the described tautness meter of claim 1, it is characterized in that: described pressure balancing stem (51) is passed the end face diameter of cylinder body (3) part and end face diameter that piston rod (522) passes end cap (11) part equates.
3, according to the described tautness meter of claim 1, it is characterized in that: described hydraulic oil channel (523) is a L type passage, L type passage one end connects airtight oil pocket (31), the other end pressure transducer mounting groove (524) interior with being located at piston head (521) is connected, and seals by composite-gasket (8) between pressure transducer (6) and the piston head mounting groove (524).
4, according to the described tautness meter of claim 1, it is characterized in that: described end cap (11) is provided with oil hole, and oil hole is provided with plug (16).
5, according to the described tautness meter of claim 1, it is characterized in that: between described piston head (521), pressure balancing stem (51) and the cylinder body (3), between end cap (11) and the piston rod (522) by O-ring seal (4) motive seal.
6, according to the described tautness meter of claim 1, it is characterized in that: described pressure balancing stem (51) is connected with piston head (521) by hexagon socket head cap screw (7).
7, according to the described tautness meter of claim 1, it is characterized in that: described end cap (11) is gone up and piston rod (522) joining place is provided with key (15), be provided with the keyway (525) corresponding with key (15) on piston rod (522), this keyway axial length is longer than key length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100498732A CN100494930C (en) | 2005-05-30 | 2005-05-30 | Pull tension gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100498732A CN100494930C (en) | 2005-05-30 | 2005-05-30 | Pull tension gauge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1699944A true CN1699944A (en) | 2005-11-23 |
| CN100494930C CN100494930C (en) | 2009-06-03 |
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ID=35476097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100498732A Expired - Fee Related CN100494930C (en) | 2005-05-30 | 2005-05-30 | Pull tension gauge |
Country Status (1)
| Country | Link |
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| CN (1) | CN100494930C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449272C (en) * | 2006-07-31 | 2009-01-07 | 许晓华 | Electric push-rod comprehensive measuring device |
| CN102706488A (en) * | 2012-05-04 | 2012-10-03 | 昆山沪光汽车电器有限公司 | Tension detecting box |
| CN103863959A (en) * | 2014-02-28 | 2014-06-18 | 三一重工股份有限公司 | Tension sensor, moment limiter and crane |
| CN103884455A (en) * | 2012-12-20 | 2014-06-25 | 国家核电技术有限公司 | Pulling force measuring device |
| CN109374193A (en) * | 2018-11-21 | 2019-02-22 | 中铁大桥科学研究院有限公司 | A kind of Oversea bridge steel suspended box cofferdam wave lift measuring device and method |
-
2005
- 2005-05-30 CN CNB2005100498732A patent/CN100494930C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449272C (en) * | 2006-07-31 | 2009-01-07 | 许晓华 | Electric push-rod comprehensive measuring device |
| CN102706488A (en) * | 2012-05-04 | 2012-10-03 | 昆山沪光汽车电器有限公司 | Tension detecting box |
| CN103884455A (en) * | 2012-12-20 | 2014-06-25 | 国家核电技术有限公司 | Pulling force measuring device |
| CN103884455B (en) * | 2012-12-20 | 2015-11-25 | 国家核电技术有限公司 | tension measuring device |
| CN103863959A (en) * | 2014-02-28 | 2014-06-18 | 三一重工股份有限公司 | Tension sensor, moment limiter and crane |
| CN103863959B (en) * | 2014-02-28 | 2015-12-23 | 三一重工股份有限公司 | Pulling force sensor, limiter of moment and hoisting crane |
| CN109374193A (en) * | 2018-11-21 | 2019-02-22 | 中铁大桥科学研究院有限公司 | A kind of Oversea bridge steel suspended box cofferdam wave lift measuring device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100494930C (en) | 2009-06-03 |
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Granted publication date: 20090603 Termination date: 20120530 |