CN105319007A - Device for dissembling calibrated suite of spinning sensor - Google Patents

Device for dissembling calibrated suite of spinning sensor Download PDF

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Publication number
CN105319007A
CN105319007A CN201410247408.9A CN201410247408A CN105319007A CN 105319007 A CN105319007 A CN 105319007A CN 201410247408 A CN201410247408 A CN 201410247408A CN 105319007 A CN105319007 A CN 105319007A
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CN
China
Prior art keywords
sensor
spinning
sealing ring
nuts
circle
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Pending
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CN201410247408.9A
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Chinese (zh)
Inventor
邵建军
焦安龙
鞠晓春
李家波
周学滨
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邵建军
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Priority to CN201410247408.9A priority Critical patent/CN105319007A/en
Publication of CN105319007A publication Critical patent/CN105319007A/en
Pending legal-status Critical Current

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Abstract

A device capable of dissembling a calibrated suite of a W138A spinning sensor produced by the PCB company is composed of an external hexagonal spinning nut and a hexagonal internal round liner, wherein all components are made of brass. The device is characterized in that the measuring cable end of a free-field pressure sensor with an undissembled seal ring penetrates through a measuring cable channel hole of the liner along the hexagonal internal round liner end. The external hexagon spinning nut passes through the tourmaline sensitive element end of the sensor, and is screwed into the hexagonal internal round liner. Through the axial movement of the hexagonal nut, the end face of the seal head of the sensor is extruded, the sensor moves axially under stress, the sensor and the seal ring move relatively along the axial direction, and thus, the sensor is dissembled. The device has the advantage that a W138A free-field pressure sensor after calibration can be smoothly dissembled from the seal ring without damaging the sensor.

Description

A kind of rotary extrusion type spinning transducer calibration external member device for dissociation
Technical field
The present invention relates to a kind of rotary extrusion type spinning transducer calibration external member device for dissociation, especially can complete PCB company of the U.S. produce W138 Series of Water under shock wave free-field blast pressure "pencil" sensor quasistatic calibration after decomposer.
Background technology
The assessment of accurate test to blast impulse wave energy and bubble energy of underwater blast wave transformation period course produces crucial effect.The pressure sensitivity of explosion pressure sensor is its main technical indicator.Therefore, to the calibration of pressure sensitivity, there is important practical significance.
The sensitivity calibration of pressure transducer divides static calibration method and dynamic calibration method [new technology new instrument, 2009,29 (4): 24-26].Static calibration method can not produce sinusoidal pressure pulsating wave.Dynamic calibration method has sinusoidal pressure signal input method and transient pressure signal input method.But sinusoidal pressure signal input method can only produce pressure signal that is less and low frequency, reaches far away the pressure amplitude of the hundreds of MPas needed for underwater explosion pressure sensor.The shock wave tube method Main Basis that transient pressure input method is commonly used be high-speed aerodynamics.Therefore, these two kinds of dynamic calibration methods are not all suitable for the calibration [pressure measurement technology and instrument, China Machine Press, 2005. aerospace measurement technology, 2011,31 (6): 15-20] of underwater blast measurement sensor.
Adopt quasi-static method can realize the measurement range of underwater blast measurement pressure transducer, producible transient pressure near sinusoidal ripple.Its principle is the liquid by being equipped with in the impact chamber that drops hammer, the liquid that is hit produces the sinusoidal pressure pulse of Millisecond, standard transducer is put into and by school sensor in liquid same plane, because in same level, pressure is equal, adopt relative method can obtain by the pressure sensitivity of school sensor.
The tourmaline that under the W138 Series of Water that PCB company of the U.S. produces, Shock Wave Sensors can produce piezoelectric effect is placed in the plastic pipe filling with silicone oil, and moisture resistance is good, does not have directivity, just to the harsh conditions of the quick-fried heart when avoiding other biosensor assay.Meanwhile, high resistant signal can be transformed into low-resistance signal by the sensitive element of this sensor.Low-resistance signal can produce signal attenuation more at a distance and not through cable transmission, can eliminate the interference that cable effect causes, because of but the pressure test sensor of underwater blast widespread use.Often about 1 year time all needed to calibrate sensitivity, to ensure the accuracy of measurement result this series sensor excessively.Because shock wave free field pressure range under W138 Series of Water is comparatively large, reach hundreds of MPa, this just requires that metering outfit can produce the dynamic pressure of hundreds of MPa.
The BLG09 pressure sensor calibrating apparatus of Beijing Institute of Technology's development can realize the pressure calibration of 800 MPas, is domestic state-of-the-art underwater explosion pressure sensor quasistatic calibrating installation.First sensor installation is needed: first screwed in by locating sleeve in the sensor mounting hole of high voltage pulse room when pressure transducer is calibrated, together will be inserted in locating sleeve by the two semi-ring supporting pad of school Underwater Pressure sensor overcoat and sealing ring again, then holding nut is screwed in, extrude by being screwed of holding nut and locating sleeve the fixing seal that two semi-ring supporting pad and sealing ring realize pressure transducer, the sensitive element of sensor gos deep in silicone oil.Reference sensor inserts in high-voltage pulse room at the conplane other end.Reference sensor is cylindrical, installs to decompose all to be easier to realize.But after repeat impact calibration test, repeatedly can be produced slight plastic yield by impacting with high pressure by the sealing ring of school sensor overcoat, form the interference fit state with Underwater Pressure sensor, cause cannot normally decompose by school sensor.
Summary of the invention
In order to decompose interference fit state free-field blast pressure "pencil" sensor and sealing ring smoothly, the object of the invention is to provide a kind of PCB company W138A series free-field blast pressure "pencil" sensor to demarcate external member decomposer.
The technical solution adopted in the present invention, is characterized in that: this device is made up of two parts.Outer six side's spinning nuts, six side's inner circle linings respectively.Wherein, six side's inner circle lining (2) parcels are combined with the sealing ring of pressure transducer in the W138A type water of PCB company production; Outer six side's spinning nuts (1) and six side's inner circle linings (2) are threaded connection, outer six side's spinning nuts (1) are made to produce axial relative motion with six side's inner circle linings (2), pinch sensors and sealing ring produce relative motion, realize the decomposition of sensor.。
Outer six side's spinning nuts of the present invention, is characterized in that: its outside surface is hexagonal prism shape; Inside, upper end is a closely-pitched internal thread, for coordinating with six side's inner circle linings (2), makes outer six side's spinning nuts (1) produce axial relative motion with six side's inner circle linings (2); Its underpart is circular groove, for contacting with sensor lower end metal flat, makes sensor produce axially-movable; Its lower end cylindrical hole is tourmaline element passage hole.
Six side's inner circle linings of the present invention, it is characterized in that: its upper end outside surface is hexagonal prism shape, inside is circular groove, for contacting with sealing ring, center is circular hole, for measuring cable passage hole; Its lower end outside surface is column type fine thread, for coordinating with outer six side's spinning nuts (1); Interior cylindrical is hollow is sealing ring access opening.
Decomposer of the present invention, is characterized in that: each part all adopts brass material, causes sensor impaired to avoid decomposable process.
The invention has the beneficial effects as follows, the W138A type free-field blast pressure "pencil" sensor after calibration can be made to decompose smoothly from sealing ring, and avoid causing damage to sensor.
Accompanying drawing explanation
Fig. 1 is arranged on the schematic diagram in calibrating installation by school sensor;
Fig. 2 is schemed with coordinating of sealing ring by school sensor;
Fig. 3 is outer six side's spinning nut part figure;
Fig. 4 is six side's inner circle lining part drawings;
Fig. 5 is free-field blast pressure "pencil" sensor calibration facility external member decomposer fundamental diagram.
In figure: 1. outer six side's spinning nuts, 2. six side's inner circle linings, 3. pressure transducer, 4. holding nut, 5. pair semi-ring supporting pad, 6. sealing ring, 7. locating sleeve, 8. high voltage pulse room, 9. tourmaline element, 10. O-ring seal, 11. O-ring seals, 12. O-ring seals.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1
Rotary extrusion type spinning transducer calibration external member device for dissociation China and foreign countries six side's spinning nuts (1), is characterized in that: its outside surface is hexagonal prism shape; Inside, upper end is a closely-pitched internal thread, for coordinating with six side's inner circle linings (2), makes outer six side's spinning nuts (1) produce axial relative motion with six side's inner circle linings (2); Its underpart is circular groove, for contacting with sensor (3) lower end metal flat, makes sensor produce axially-movable; Its lower end cylindrical hole is tourmaline element (11) access opening.。
Embodiment 2
Six side's inner circle linings in rotary extrusion type spinning transducer calibration external member device for dissociation, it is characterized in that: its upper end outside surface is hexagonal prism shape, inside is circular groove, for contacting with sealing ring, center is circular hole, for measuring cable passage hole; Its lower end outside surface is column type fine thread, for coordinating with outer six side's spinning nuts (1); Interior cylindrical is hollow is sealing ring (6) access opening.
Embodiment 3
Rotary extrusion type spinning transducer calibration external member device for dissociation material.The each part of decomposer all adopts brass material, causes sensor impaired to avoid decomposable process.
Embodiment 4
The application process of rotary extrusion type spinning transducer calibration external member device for dissociation.In Fig. 5, when sealing ring (6) that use free-field blast pressure "pencil" sensor of the present invention to demarcate on external member decomposer decomposition sensor, first that six side's inner circle linings (2) are fixing on jig, then will measure cable passage hole with the measurement cut cable of the Underwater Pressure sensor (3) of undecomposed sealing ring (6) through six side's inner circle linings (2).By six side's inner circle lining (2) environmental sealing rings (6).By outer six side's spinning nuts (1) through sensor tourmaline sensitive element end (9), screw in six side's inner circle linings (2).By the axially-movable of outer six side's spinning nuts (1), pinch sensors seal head end face (9), sensor (3) stressed generation axially-movable trend, owing to being moved by six side's inner circle lining (2) restrictive axial with the sealing ring (6) of sensor (3) interference fit, sensor (3) and sealing ring (6) is caused to produce relative motion vertically.Because sensor (3) part coordinated with sealing ring (6) has the less conical surface, the interference fit with sealing ring (6) freed by the sensor (3) that relative motion occurs, and realizes the decomposition of sensor (3).

Claims (6)

1. a rotary extrusion type spinning transducer calibration external member device for dissociation, is made up of outer six side's spinning nuts (1), six side's inner circle linings (2); In the W138A type water that PCB company that is calibration is rear and sealing ring interference fit produces, pressure transducer makes sealing ring and sensor move to axial by decomposer, realizes decomposing.
2. rotary extrusion type spinning transducer calibration external member device for dissociation according to claim 1, is characterized in that: adopt six side's inner circle lining (2) parcels to be combined with the sealing ring of pressure transducer in the W138A type water of PCB company production; Outer six side's spinning nuts (1) and six side's inner circle linings (2) are threaded connection, outer six side's spinning nuts (1) are made to produce axial relative motion with six side's inner circle linings (2), pinch sensors and sealing ring produce relative motion, realize the decomposition of sensor.
3. rotary extrusion type spinning transducer calibration external member device for dissociation according to claim 1, its annexation is: outer six side's spinning nuts (1) and six side's inner circle linings (2) are threaded connection, and makes outer six side's spinning nuts (1) produce axial relative motion with six side's inner circle linings (2).
4. outer six side's spinning nuts (1) of rotary extrusion type spinning transducer calibration external member device for dissociation according to claim 1, is characterized in that: its outside surface is hexagonal prism shape; Inside, upper end is a closely-pitched internal thread, for coordinating with six side's inner circle linings (2), makes outer six side's spinning nuts (1) produce axial relative motion with six side's inner circle linings (2); Its underpart is circular groove, for contacting with sensor lower end metal flat, makes sensor produce axially-movable; Its lower end cylindrical hole is tourmaline element passage hole.
5. six side's inner circle linings (2) of rotary extrusion type spinning transducer calibration external member device for dissociation according to claim 1, it is characterized in that: its upper end outside surface is hexagonal prism shape, inside is circular groove, for contacting with sealing ring, center is circular hole, for measuring cable passage hole; Its lower end outside surface is column type fine thread, for coordinating with outer six side's spinning nuts (1); Interior cylindrical is hollow is sealing ring access opening.
6. rotary extrusion type spinning transducer calibration external member device for dissociation according to claim 1, each part of this device all adopts brass material.
CN201410247408.9A 2014-06-05 2014-06-05 Device for dissembling calibrated suite of spinning sensor Pending CN105319007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410247408.9A CN105319007A (en) 2014-06-05 2014-06-05 Device for dissembling calibrated suite of spinning sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410247408.9A CN105319007A (en) 2014-06-05 2014-06-05 Device for dissembling calibrated suite of spinning sensor

Publications (1)

Publication Number Publication Date
CN105319007A true CN105319007A (en) 2016-02-10

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Application Number Title Priority Date Filing Date
CN201410247408.9A Pending CN105319007A (en) 2014-06-05 2014-06-05 Device for dissembling calibrated suite of spinning sensor

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CN (1) CN105319007A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006103651A2 (en) * 2005-03-29 2006-10-05 Hanita Metal Works Ltd. Shrink fit tool holder
CN201082532Y (en) * 2007-07-20 2008-07-09 宝山钢铁股份有限公司 Shaft sleeve detaching device
CN201783908U (en) * 2010-05-25 2011-04-06 国营险峰机器厂 Dismounting device of interference fit products
CN102049756A (en) * 2009-10-27 2011-05-11 鸿富锦精密工业(深圳)有限公司 Extractor
CN201856073U (en) * 2010-08-31 2011-06-08 中国北车集团大连机车研究所有限公司 Detaching device of interference-fit combined piston of locomotive diesel engine
CN202846482U (en) * 2012-11-13 2013-04-03 湘潭电机股份有限公司 Dismounting device for interference sleeve
CN103808456A (en) * 2013-11-25 2014-05-21 邵建军 Decomposing device for calibrated suite of underwater pressure sensor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006103651A2 (en) * 2005-03-29 2006-10-05 Hanita Metal Works Ltd. Shrink fit tool holder
CN201082532Y (en) * 2007-07-20 2008-07-09 宝山钢铁股份有限公司 Shaft sleeve detaching device
CN102049756A (en) * 2009-10-27 2011-05-11 鸿富锦精密工业(深圳)有限公司 Extractor
CN201783908U (en) * 2010-05-25 2011-04-06 国营险峰机器厂 Dismounting device of interference fit products
CN201856073U (en) * 2010-08-31 2011-06-08 中国北车集团大连机车研究所有限公司 Detaching device of interference-fit combined piston of locomotive diesel engine
CN202846482U (en) * 2012-11-13 2013-04-03 湘潭电机股份有限公司 Dismounting device for interference sleeve
CN103808456A (en) * 2013-11-25 2014-05-21 邵建军 Decomposing device for calibrated suite of underwater pressure sensor

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Application publication date: 20160210

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