CN107339287A - A kind of device and method for being used to measure Underwater Pressure compensator piston stroke - Google Patents
A kind of device and method for being used to measure Underwater Pressure compensator piston stroke Download PDFInfo
- Publication number
- CN107339287A CN107339287A CN201710624559.5A CN201710624559A CN107339287A CN 107339287 A CN107339287 A CN 107339287A CN 201710624559 A CN201710624559 A CN 201710624559A CN 107339287 A CN107339287 A CN 107339287A
- Authority
- CN
- China
- Prior art keywords
- piston
- housing
- magnet steel
- gland
- pressure compensator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 210000004907 gland Anatomy 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000013535 sea water Substances 0.000 claims abstract description 9
- 238000005259 measurement Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
Abstract
A kind of device and method for being used to measure Underwater Pressure compensator piston stroke, belongs to Underwater Pressure compensator technical field.Shell one end is blind end, the other end is opening end, piston ring set is mounted in enclosure interior, one end of piston is opening end, the other end is blind end, the blind end of the opening end corresponding housing of piston, the blind end of housing is provided with seawater access apertures, in housing piston gland is provided with the outside of the blind end of piston, diaphragm is provided between piston gland and piston, diaphragm extends always along housing inner circumferential side wall to be fixed in the annular groove that housing opening end face is provided with, threaded rod one end of guide rod sequentially passes through housing, piston, the centre bore of diaphragm and piston gland, nut has been screwed on the threaded rod of guide rod, a side end face upper groove of the piston gland towards the hydraulic pressure cargo tank, magnet steel is fixed in the groove of piston gland, magnet steel is made of permanent-magnet material, Hall element is set with magnet steel face.The present invention is used to measure Underwater Pressure compensator piston stroke.
Description
Technical field
The present invention relates to a kind of device and method of piston stroke measurement, be particularly suitable for use in Underwater Pressure compensator piston row
The measurement of journey, belong to Underwater Pressure compensator technical field.
Background technology
As Underwater Pressure changes, adverse effect is brought to the hydraulic system of underwater operation, therefore pressure need to be used to mend
Repay device balance system external and internal pressure.It can be not only used for compensation system work when flow needed for actuator and fluid because itself
Changes in flow rate caused by elastic deformation, temperature etc., automatic environmental pressure compensation can also be carried out to system, avoid hyperbaric environment pair
System has adverse effect on, and ensures reliable, the trouble free service of actuator.Currently used compensator has bladder, metal foil
The type such as membrane type and bellows-type.When wherein measuring piston stroke, frequently with stay-supported type displacement sensor, but occupancy volume is needed
The external space, make that there is certain limitation during its use.
The content of the invention
The purpose of the present invention is to solve currently used for existing in measurement Underwater Pressure compensator piston stroke measurement process
The defects of and deficiency, there is provided it is a kind of to be used to measure the device and method of Underwater Pressure compensator piston stroke.
To achieve the above object, the present invention adopts the technical scheme that：
A kind of device for being used to measure Underwater Pressure compensator piston stroke of the present invention, including housing and piston, described use
Also include Hall element, diaphragm, magnet steel, spring, guide rod, piston gland in the device of measurement Underwater Pressure compensator piston stroke
And nut, described shell one end are blind end, the other end is opening end, and described piston ring set is mounted in enclosure interior, piston
Provided with center cavity, one end of piston is opening end, and the other end is blind end, the blind end of the opening end corresponding housing of piston, shell
The blind end of body is provided with seawater access apertures, and piston gland, described piston are provided with the outside of the blind end of piston in housing
Diaphragm is provided between gland and piston, described diaphragm extends always along housing inner circumferential side wall to be fixed on housing opening end face
In the annular groove being provided with, form hydraulic pressure cargo tank on the inside of diaphragm, described guide rod by one end to the other end by be made as one and diameter according to
Threaded rod, cylindrical bar and the annular outer of secondary increase are formed, housings close end middle part, piston blind end middle part, the middle part of diaphragm
And centre bore is respectively equipped with the middle part of piston gland, threaded rod one end of guide rod sequentially passes through the center of the centre bore of housing, piston
The centre bore in hole, the centre bore of diaphragm and piston gland, nut is screwed on the threaded rod of guide rod, piston gland is described in
One side end face upper groove of hydraulic pressure cargo tank, described magnet steel are fixed in the groove of piston gland, and magnet steel uses permanent-magnet material system
Into described Hall element is arranged on hull outside, and the Hall installation that Hall element is fixed on submersible machine covers, Hall element
Set with magnet steel face.
A kind of method for measuring Underwater Pressure compensator piston stroke of the present invention, described method are：By Hall
Element faces magnet steel, using Hall element detect magnet steel leakage field, according to permanent-magnet material leakage field size with magnet steel centre-to-centre spacing suddenly
The change curve of your element axial distance, determines piston stroke.
It is of the invention to be relative to the beneficial effect of prior art：Due to magnet steel（Permanent-magnet material）Center leakage field magnetic is close and Hall
Element axial distance has the relation of determination, and piston stroke can relatively accurately be measured by detecting leakage field according to Hall element, and
It is simple in construction, occupy little space, precision is high, high pressure resistant, applied widely, is easy to implement pressure compensation.
Brief description of the drawings
Fig. 1 is the main sectional view for being used to measure the device of Underwater Pressure compensator piston stroke of the present invention；
Fig. 2 is partial enlarged drawing at Fig. 1 A；
Fig. 3 is partial enlarged drawing at Fig. 1 B；
Fig. 4 is a height of 3mm of cylinder magnet steel, the variation relation figure of leakage field size and the central axial distance of magnet steel during a diameter of 14mm.
Component names and label in figure are as follows：
Hall element 1, diaphragm 2, magnet steel 3, piston 4, spring 5, guide rod 6, seawater access apertures 7, piston gland 8, housing 9, hydraulic pressure
Cargo tank 10, threaded rod 11, cylindrical bar 12, annular outer 13, nut 14, submersible machine 15, annular boss 1, annular boss two
17th, Hall installation lid 18.
Embodiment
In order to be better understood from the scheme of patent of the present invention, technical scheme is made further with reference to accompanying drawing
It is bright, but be not limited thereto, it is every technical solution of the present invention to be modified or equivalent substitution, without departing from the technology of the present invention
The spirit and scope of scheme, it all should cover in protection scope of the present invention.
Embodiment one：As shown in Figure 1-Figure 3, present embodiment discloses a kind of for measuring Underwater Pressure compensation
The device of device piston stroke, including housing 9 and piston 4, the described device for being used to measure Underwater Pressure compensator piston stroke
Also include Hall element 1, diaphragm 2, magnet steel 3, spring 5, guide rod 6, piston gland 8 and nut 14, described one end of housing 9 is envelope
Closed end, the other end are opening end, and for the described ring set of piston 4 inside housing 9, piston 4 is provided with center cavity, one end of piston 4
For opening end, the other end is blind end, and the blind end of the opening end corresponding housing 9 of piston 4, the blind end of housing 9 is provided with sea
Water access apertures 7, is provided with piston gland 8 in housing 9 on the outside of the blind end of piston 4, described piston gland 8 and piston 4 it
Between be provided with diaphragm 2, described diaphragm 2 extends the ring for being fixed on 9 open end face of housing and being provided with along the inner circumferential side wall of housing 9 always
In groove, the inner side of diaphragm 2 forms hydraulic pressure cargo tank 10, and described guide rod 6 is by one end to the other end by being made as one and diameter increases successively
Big threaded rod 11, cylindrical bar 12 and annular outer 13（When guide rod 6 is moved to the left, axial limiting work is played in annular outer 13
With）Form, during the blind end of housing 9 middle part, the blind end of piston 4 middle part, the middle part of diaphragm 2 and the middle part of piston gland 8 are respectively equipped with
Heart hole, threaded rod one end of guide rod 6 sequentially pass through the centre bore of housing 6, the centre bore of piston 4, the centre bore of diaphragm 2 and work
The centre bore of gland 8 is filled in, nut 14 has been screwed on the threaded rod 11 of guide rod 6（Pass through screwing piston gland 8, film for nut 14
Piece 2 and piston 4 are fixed on guide rod 6）, piston gland 8 is towards a side end face upper groove of the hydraulic pressure cargo tank 10, described magnetic
Steel 3 is fixed in the groove of piston gland 8, and magnet steel 3 is made of permanent-magnet material, and described Hall element 1 is arranged on outside housing 9
Portion, Hall element 1 are fixed on the Hall installation lid 18 of submersible machine 15, and Hall element 1 is set with the face of magnet steel 3.
Embodiment two：Present embodiment is the further explanation made to embodiment one, it is described forever
Magnetic material is neodymium iron boron or SmCo.
Embodiment three：As shown in figure 1, present embodiment is that embodiment one is made furtherly
Bright, the neighboring in the middle part of the described blind end inner surface of housing 9 positioned at centre bore is provided with annular boss 1, described piston 4
In the middle part of blind end inner surface annular boss 2 17,5 liang of described spring are provided with the described opposite position of annular boss 1
End is set in outside the annular boss 1 of housing 9 and the annular boss 2 17 of piston 4.
Embodiment four：As shown in Figure 1 and Figure 2, present embodiment be embodiment two is made it is further
Illustrate, the described profile of magnet steel 3 is cylinder or polygonal prism body.
Embodiment five：As shown in Figure 1 and Figure 2, present embodiment be embodiment one is made it is further
Illustrate, described magnet steel 3 is fixed on by gluing, rivet or pin or mosaic mode in the groove of piston gland 8.For
Local environment temperature is not high（Usually below 200 DEG C）Occasion, magnet steel 3 can use gluing fixed form, and for ring
Border temperature has higher（Usually more than 200 DEG C）Requirement when, then should be by the way of rivet, pin be fixed or inlayed.
Embodiment six：As shown in Figure 1 and Figure 2, present embodiment be embodiment one is made it is further
Illustrate, described magnet steel 3 is in towards a side end face of hydraulic pressure cargo tank 10 with piston gland 8 towards the side end face of hydraulic pressure cargo tank 10
Same plane.
Embodiment seven：As shown in Figure 1-Figure 3, it is a kind of to utilize in one ~ embodiment of embodiment six
The method that device described in any embodiment realizes measurement Underwater Pressure compensator piston stroke, described method are：
Hall element 1 is faced into magnet steel 3, the leakage field of magnet steel 3 is detected using Hall element 1, according to permanent-magnet material leakage field size with magnetic
The change curve of the axial distance of 3 centre-to-centre spacing Hall element of steel 1, determines piston stroke.It is easy to Underwater Pressure to compensate.
Operation principle：The hydraulic pressure cargo tank of diaphragm 2 enters to piston 4 built with hydraulic oil, seawater by seawater access apertures 7
In inner chamber（I.e. left side is hydraulic oil, and right side is seawater）, with the continuous enhancing of seawater pressure, piston 4 is moved to the left, spring 5
It is stretched, the magnet steel 3 being fixed in the groove of piston gland 8 is made of permanent-magnet material, can be neodymium iron boron and SmCo.Face
Magnet steel 3 is Hall element 1, for detecting the magnetic field size of magnet steel 3.
Simulation analysis are carried out to technical scheme using finite element software, simulation model is actual device front view
Half.Magnet steel 3 uses cylinder, as a height of 3mm of cylinder, a diameter of 14mm, the center leakage field magnetic line of force be distributed as with
Axial distance increase, the close amplitude of magnetic is less and less.
As shown in figure 4, can more directly it find out：Magnet steel 3 uses cylinder, a diameter of as a height of 3mm of cylinder
During 14mm, with the increase of Hall element 1 and the distance of magnet steel 3, the close rapid decrease of leakage field magnetic.According to this curve and Hall element
The 1 close size of the magnetic detected, it can be deduced that compensator stroke（I.e. magnet steel 3 is apart from the distance between Hall element 1 H, such as Fig. 1 institutes
Show）.
Claims (7)
1. a kind of device for being used to measure Underwater Pressure compensator piston stroke, including housing（9）And piston（4）, its feature exists
In：The described device for being used to measure Underwater Pressure compensator piston stroke also includes Hall element（1）, diaphragm（2）, magnet steel
（3）, spring（5）, guide rod（6）, piston gland（8）And nut（14）, described housing（9）One end is blind end, and the other end is
Opening end, described piston（4）Ring set is mounted in housing（9）Inside, piston（4）Provided with center cavity, piston（4）One end for opening
End, the other end are blind end, piston（4）Opening end corresponding housing（9）Blind end, housing（9）Blind end be provided with sea
Water access apertures（7）, housing（9）It is interior to be located at piston（4）Blind end on the outside of be provided with piston gland（8）, described piston gland（8）
With piston（4）Between be provided with diaphragm（2）, described diaphragm（2）Along housing（9）Inner circumferential side wall extends always is fixed on housing
（9）In the annular groove that open end face is provided with, diaphragm（2）Inner side forms hydraulic pressure cargo tank（10）, described guide rod（6）By one end to another
One end is by the threaded rod that is made as one and diameter increases successively（11）, cylindrical bar（12）With annular outer（13）Form, housing（9）
Blind end middle part, piston（4）Blind end middle part, diaphragm（2）Middle part and piston gland（8）Middle part is respectively equipped with centre bore, leads
Bar（6）Threaded rod one end sequentially pass through housing（6）Centre bore, piston（4）Centre bore, diaphragm（2）Centre bore and
Piston gland（8）Centre bore, guide rod（6）Threaded rod（11）On screwed nut（14）, piston gland（8）Towards the liquid
Press oil cabin（10）A side end face upper groove, described magnet steel（3）It is fixed on piston gland（8）Groove in, magnet steel（3）Using
Permanent-magnet material is made, described Hall element（1）It is arranged on housing（9）Outside, Hall element（1）It is fixed on submersible machine（15）
Hall installation lid（18）On, Hall element（1）With magnet steel（3）Face is set.
A kind of 2. device for being used to measure Underwater Pressure compensator piston stroke according to claim 1, it is characterised in that：
Described permanent-magnet material is neodymium iron boron or SmCo.
A kind of 3. device for being used to measure Underwater Pressure compensator piston stroke according to claim 1, it is characterised in that：
Described housing（9）Neighboring in the middle part of blind end inner surface positioned at centre bore is provided with annular boss one（16）, described piston
（4）Blind end inner surface middle part and described annular boss one（16）Opposite position is provided with annular boss two（17）, it is described
Spring（5）Both ends are set in housing（9）Annular boss one（16）And piston（4）Annular boss two（17）It is outside.
A kind of 4. device for being used to measure Underwater Pressure compensator piston stroke according to claim 2, it is characterised in that：
Described magnet steel（3）Profile is cylinder or polygonal prism body.
A kind of 5. device for being used to measure Underwater Pressure compensator piston stroke according to claim 1, it is characterised in that：
Described magnet steel（3）Piston gland is fixed on by gluing, rivet or pin or mosaic mode（8）Groove in.
A kind of 6. device for being used to measure Underwater Pressure compensator piston stroke according to claim 1, it is characterised in that：
Described magnet steel（3）Towards hydraulic pressure cargo tank（10）A side end face and piston gland（8）Towards hydraulic pressure cargo tank（10）One side end face
In same plane.
7. the device in a kind of 1-6 using claim described in any claim realizes measurement Underwater Pressure compensator piston row
The method of journey, it is characterised in that：Described method is：By Hall element（1）Face magnet steel（3）, utilize Hall element（1）Inspection
Survey magnet steel（3）Leakage field, according to permanent-magnet material leakage field size with magnet steel（3）Centre-to-centre spacing Hall element（1）The change of axial distance
Curve, determine piston stroke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624559.5A CN107339287A (en) | 2017-07-27 | 2017-07-27 | A kind of device and method for being used to measure Underwater Pressure compensator piston stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624559.5A CN107339287A (en) | 2017-07-27 | 2017-07-27 | A kind of device and method for being used to measure Underwater Pressure compensator piston stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107339287A true CN107339287A (en) | 2017-11-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710624559.5A Pending CN107339287A (en) | 2017-07-27 | 2017-07-27 | A kind of device and method for being used to measure Underwater Pressure compensator piston stroke |
Country Status (1)
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| CN (1) | CN107339287A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895044A (en) * | 2018-09-25 | 2018-11-27 | 天津昊野科技有限公司 | A kind of pressure compensator of deepwater work device |
| CN110056546A (en) * | 2019-05-17 | 2019-07-26 | 中国科学院深海科学与工程研究所 | A kind of Quan Haishen Multi-oil circuit pressure compensator |
| CN110805571A (en) * | 2019-11-05 | 2020-02-18 | 三联泵业股份有限公司 | Bearing protection sealing mechanism of underwater dredge pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02194301A (en) * | 1989-01-23 | 1990-07-31 | Taiyo Ltd | Method for detecting piston position of fluid pressure cylinder |
| JPH05264205A (en) * | 1992-03-20 | 1993-10-12 | Aichi Steel Works Ltd | Magnetic sensor and device for detecting magnetic displacement |
| DE102004025014A1 (en) * | 2004-05-23 | 2005-12-08 | Richter, Werner, Dipl.-Ing. | Body e.g. piston, position measuring device, has permanent magnets forming magnetic flux of magnetic circle which is enclosed with magnetic flux sensors and axially moveable bar and/or axially firm bar |
| US20070145969A1 (en) * | 2005-12-22 | 2007-06-28 | Rosplock James D | Long stroke hall position sensor having a shaped pole |
| CN201378089Y (en) * | 2009-04-17 | 2010-01-06 | 蒋伟荣 | Vehicular electronic pressure sensor |
| CN202720979U (en) * | 2012-09-10 | 2013-02-06 | 宁波力达物流设备有限公司 | Acceleration potentiometer |
| CN104677466A (en) * | 2013-11-27 | 2015-06-03 | 中国科学院沈阳自动化研究所 | Underwater robot compensator displacement detection sensor and detection method thereof |
| CN206231597U (en) * | 2016-12-13 | 2017-06-09 | 中国科学院沈阳自动化研究所 | Can be used for the pressure compensator of underwater environment |
| CN207145375U (en) * | 2017-07-27 | 2018-03-27 | 哈尔滨工业大学 | A kind of device for being used to measure Underwater Pressure compensator piston stroke |
-
2017
- 2017-07-27 CN CN201710624559.5A patent/CN107339287A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02194301A (en) * | 1989-01-23 | 1990-07-31 | Taiyo Ltd | Method for detecting piston position of fluid pressure cylinder |
| JPH05264205A (en) * | 1992-03-20 | 1993-10-12 | Aichi Steel Works Ltd | Magnetic sensor and device for detecting magnetic displacement |
| DE102004025014A1 (en) * | 2004-05-23 | 2005-12-08 | Richter, Werner, Dipl.-Ing. | Body e.g. piston, position measuring device, has permanent magnets forming magnetic flux of magnetic circle which is enclosed with magnetic flux sensors and axially moveable bar and/or axially firm bar |
| US20070145969A1 (en) * | 2005-12-22 | 2007-06-28 | Rosplock James D | Long stroke hall position sensor having a shaped pole |
| CN201378089Y (en) * | 2009-04-17 | 2010-01-06 | 蒋伟荣 | Vehicular electronic pressure sensor |
| CN202720979U (en) * | 2012-09-10 | 2013-02-06 | 宁波力达物流设备有限公司 | Acceleration potentiometer |
| CN104677466A (en) * | 2013-11-27 | 2015-06-03 | 中国科学院沈阳自动化研究所 | Underwater robot compensator displacement detection sensor and detection method thereof |
| CN206231597U (en) * | 2016-12-13 | 2017-06-09 | 中国科学院沈阳自动化研究所 | Can be used for the pressure compensator of underwater environment |
| CN207145375U (en) * | 2017-07-27 | 2018-03-27 | 哈尔滨工业大学 | A kind of device for being used to measure Underwater Pressure compensator piston stroke |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895044A (en) * | 2018-09-25 | 2018-11-27 | 天津昊野科技有限公司 | A kind of pressure compensator of deepwater work device |
| CN110056546A (en) * | 2019-05-17 | 2019-07-26 | 中国科学院深海科学与工程研究所 | A kind of Quan Haishen Multi-oil circuit pressure compensator |
| CN110805571A (en) * | 2019-11-05 | 2020-02-18 | 三联泵业股份有限公司 | Bearing protection sealing mechanism of underwater dredge pump |
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Application publication date: 20171110 |