CN204286962U - A kind of " O " RunddichtringO rebound rate device - Google Patents

A kind of " O " RunddichtringO rebound rate device Download PDF

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Publication number
CN204286962U
CN204286962U CN201420694612.0U CN201420694612U CN204286962U CN 204286962 U CN204286962 U CN 204286962U CN 201420694612 U CN201420694612 U CN 201420694612U CN 204286962 U CN204286962 U CN 204286962U
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CN
China
Prior art keywords
electromagnet
compression
type
iron core
runddichtringo
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Expired - Fee Related
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CN201420694612.0U
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Chinese (zh)
Inventor
郭宇
李树谦
李志杰
陈晓明
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No41 Research Institute Of Sixth Academy Of China Aerospace Science & Industry Corp
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No41 Research Institute Of Sixth Academy Of China Aerospace Science & Industry Corp
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Abstract

The utility model belongs to material properties test field, is specifically related to one " O " RunddichtringO rebound rate device.This device by compressing/quick release device and optics velocity measuring system form.Wherein, compression and releasing means adopt bidirectional electromagnet to realize O-ring seal compression and release fast; Optics velocity measuring system adopts laser displacement sensor test O-ring seal resilience displacement versus time relation, and then obtains its springback process rate variation.This device has that structure is simple, stable performance, feature that measuring accuracy is high.This device is applicable to the resilience speed of O-ring seal, is also applicable to the rebound performance test of other resilient material and structural member.

Description

A kind of " O " RunddichtringO rebound rate device
Technical field
The utility model belongs to material properties test field, relates to material rebounds performance test, is specifically related to proving installation and the method for solid propellant rocket " O " RunddichtringO resilience speed.
Background technology
The rebound characteristics of O-ring seal is the main special performance index characterizing dynamic seal (packing) usefulness, has reacted after elastomeric material pressurized reaches entropy balance state and can freely discharge shown deformation characteristic in elasticity.Elastomeric material has more typical viscoelastic property, and the change of its parameter will experience regular hour course.Because the distortion viscoelastic of elastomeric material blocks, under the shock load of solid propellant rocket ignition point, the rebound velocity of the rubber ring of its " O " type hermetically-sealed construction likely can not respond the distortion of shell structure part in time, at O-ring seal with sealing surface contact is too small or produce gap and cause seal failure.
Therefore, obtain the resilience speed of O-ring seal in the urgent need to a kind of simple, easy-to-use, proving installation that precision is high and method, for the motive seal Performance Evaluation of solid propellant rocket and reliability evaluation provide technological means and data supporting.
Utility model content
The technical problems to be solved in the utility model is the speed of test O-ring seal resilience, provides a kind of " O " RunddichtringO rebound rate device.
The technical solution adopted in the utility model is as follows:
A kind of " O " RunddichtringO rebound rate device, comprises two-way sucked type double-iron core electromagnet and high-rate laser distance measuring sensor.Wherein: two-way sucked type double-iron core electromagnet comprises 1 piece of compression electromagnet, 1 piece of resilience electromagnet, 1 " H " type and moves iron core, 2 pieces of web joints and 1 " U " type groove pressing plate." U " type groove pressing plate is arranged on the inner side of described compression electromagnet and fixes, " U " type compression groove size is determined according to seal diameter and compressibility, " H " type moves two core bore of double-iron core through compression electromagnet of iron core one end, the double-iron core of the other end passes the core bore of resilience electromagnet, adjust described compression electromagnet and described resilience electromagnet is fixed by described web joint after correct position meets iron core stroke and accuracy requirement, immediately below " U " type compression groove, laser range sensor is installed, its distance measuring laser beams is made to aim at " U " type compression groove, and guarantee that the rear position of O-ring seal compression is in effective temperature-measuring range of laser range sensor.
Alternatively, described resilience electromagnet and compression electromagnet share the dynamic iron core of " H " type, and interlock when described resilience electromagnet and compression work of electromagnet.
Alternatively, described " U " type groove pressing plate is removable, and adjusts the compressibility of described " O " RunddichtringO by change " U " type compression groove degree of depth.
Alternatively, in test process, at the top bonded metal sheet of described " O " RunddichtringO, by detecting the motion of the web exposed parts on described " O " RunddichtringO, obtain the springback process of O-ring seal.
Alternatively, described " H " type moves iron core and adopts FeCov alloy.
This proving installation has that principle is simple, structure is reliable, stable performance, feature that volume is little.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the technical solution of the utility model is described further:
Fig. 1 " O " of the present invention RunddichtringO resilience rate devices structural representation.
Aluminium sheet scheme of installation on Fig. 2 O-ring seal.
Wherein: 1 web joint, 2 resilience electromagnet, 3 " H " type moves iron core, 4 aluminium sheets, 5 " O " RunddichtringO test specimen, 6 " U " type groove pressing plate, 7 compression electromagnet, 8 laser range sensors.
Fig. 3 O-ring seal resilient mounting controlling test schematic diagram.
Wherein: 1 power supply, 2 laser range sensors, 3 computer for controlling, SB 1main circuit switch, SB 2compression electromagnet starting switch, SB 3resilience electromagnet and laser sensor gather starting switch, KM 1compression electromagnet starting contactor, KM 2resilience electromagnet and laser sensor starting contactor.
Embodiment
As shown in Figure 1, a kind of " O " RunddichtringO rebound rate device, comprises two-way sucked type double-iron core electromagnet and laser range sensor 8.Two-way sucked type double-iron core electromagnet comprises 1 block of compression electromagnet 7,1 block of resilience electromagnet, 2,1 " H " type and moves iron core 3,2 pieces of web joints and 1 " U " type groove pressing plate 6.The physical dimension of two-way sucked type double-iron core electromagnet, force of compression and resilience speed are comprehensively determined according to sealing ring material, size and compressibility, and two-way sucked type double-iron core electromagnet adopts interlocking; " U " type compression groove size is determined according to seal diameter and compressibility; Aluminium sheet 4 adopt long 60mm, wide 5mm, 0.05mm aluminium thin; The installation dimension of laser range sensor 8, measurement range and precision and sample frequency are selected according to O-ring seal resilience speed.
For the resilience speed under G105 viton seal ring (length is 50mm) maximum compression rate 35% condition of test diameter φ 5mm.According to investigation in early stage, know that 35% force of compression of " O " RunddichtringO test specimen 5 is no more than 300kg, resilience peak acceleration is no more than 10g.Rebound test device is shown in accompanying drawing 1.
Critical component parameter is as follows:
1) two-way sucked type double-iron core electromagnet 1 overlaps, and parameter is: voltage 36V, and compression suction 300kg, resilience suction 100kg, " H " type moves iron core 3 and adopts FeCov alloy, effective travel 15mm, and electromagnet compression/resilience interlocking state works.
2) " U " type groove pressing plate 1, material is DT8, the long 160mm of plate, wide 50mm, thick 8mm, and " U " type groove is groove (wide 8mm, dark 3.2mm), opens hole in electromagnet core bore corresponding position.
3) laser range sensor 1, major parameter: detecting distance 15mm, sensing range ± 5mm, range 10mm, resolution 1um, precision: ± 0.1%F.S., spot size 0.5 × 0.7mm, adopts cycle 500um.
Installation and Debugging step is as follows:
1) " U " type groove pressing plate 6 is installed to the inner side of compression electromagnet 7, and is screwed." H " type is moved two core bore of double-iron core through compression electromagnet 7 of iron core 3 one end, the double-iron core of the other end, through the core bore of resilience electromagnet 2, is fixed with bolt by web joint (2) 1 after adjustment compression electromagnet 7 and resilience electromagnet 2 meet iron core stroke and accuracy requirement to correct position.
2) immediately below " U " type groove, laser range sensor 8 is installed, makes its distance measuring laser beams aim at U-type groove, and guarantee that " O " RunddichtringO test specimen 5 compresses rear position in effective temperature-measuring range of this laser range sensor 8.
3) according to connection control shown in Fig. 2 and test circuit, and debug.
Use step is as follows:
1) as shown in Figure 3, by the aluminium sheet 4 of the thick 0.05mm of the bonding long 60mm of " O " RunddichtringO test specimen 5 long for 50mm, and 10mm is exposed at test lead.
2) " U " type compression groove put into by O-ring seal test specimen 5, ensures aluminium sheet 4 upwards.Start working power, O-ring seal test specimen 5 compression puts in place by the action of compression electromagnet 7, and " H " type of guarantee moves iron core 3 and " U " type groove pressing plate 6 is fitted.
3) by proving installation room temperature environment or put into sweat box keep more than 30min.
4) open electromagnet interlock switch, while the power-off of compression electromagnet 7, resilience electromagnet 2 is opened, and " H " type moves iron core 3 and upsprings at a high speed, quick releasing sealed circle test specimen 5, and laser range sensor 8 opens the motion process of monitoring aluminium sheet 4 simultaneously.
5) read the displacement versus time relation of motion process from acquisition system, and then obtain resilience speed.
In sum, simple, the stable performance of this proving installation structure, measuring accuracy are high.In addition, this device is not only applicable to the resilience speed of O-ring seal, is applicable to the rebound performance test of other resilient material and structural member yet.

Claims (5)

1. " O " RunddichtringO rebound rate device, is characterized in that: comprise two-way sucked type double-iron core electromagnet and laser range sensor (8), described two-way sucked type double-iron core electromagnet comprises 1 piece of compression electromagnet (7), 1 piece of resilience electromagnet (2), 1 " H " type moves iron core (3), 2 pieces of web joints and 1 " U " type groove pressing plate (6), wherein " U " type groove pressing plate (6) is arranged on the inner side of described compression electromagnet (7) and fixes, " U " type compression groove size is determined according to seal diameter and compressibility, " H " type moves two core bore of double-iron core through compression electromagnet of iron core (3) one end, the double-iron core of the other end passes the core bore of resilience electromagnet (2), adjust described compression electromagnet (7) and described resilience electromagnet (2) is fixed by described web joint after correct position meets iron core stroke and accuracy requirement, immediately below " U " type compression groove, laser range sensor (8) is installed, its distance measuring laser beams is made to aim at U-shaped compression groove, and guarantee that the rear position of O-ring seal compression is in effective temperature-measuring range of laser range sensor (8).
2. " O " RunddichtringO rebound rate device according to claim 1, it is characterized in that: described resilience electromagnet (2) and compression electromagnet (7) share the dynamic iron core of " H " type, and described resilience electromagnet (2) and compression electromagnet (7) mutual when working lock.
3. " O " RunddichtringO rebound rate device according to claim 1, it is characterized in that: described " U " type groove pressing plate (6) are removable, and adjust the compressibility of described " O " RunddichtringO by change " U " type compression groove degree of depth.
4. " O " RunddichtringO rebound rate device according to claim 1, is characterized in that: in test process, at the top bonded metal sheet of described " O " RunddichtringO.
5. " O " RunddichtringO rebound rate device according to claim 1, is characterized in that: described " H " type moves iron core and adopts FeCov alloy.
CN201420694612.0U 2014-11-04 2014-11-04 A kind of " O " RunddichtringO rebound rate device Expired - Fee Related CN204286962U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104568621A (en) * 2014-11-04 2015-04-29 中国航天科工集团第六研究院四十一所 Device and method for testing rebound rate of O-shaped sealing ring
CN105158096A (en) * 2015-04-23 2015-12-16 山东大学 Telescopic rebound detection device and use method thereof
CN105300820A (en) * 2015-11-17 2016-02-03 杭州市质量技术监督检测院 Textile compression resilience tester

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104568621A (en) * 2014-11-04 2015-04-29 中国航天科工集团第六研究院四十一所 Device and method for testing rebound rate of O-shaped sealing ring
CN105158096A (en) * 2015-04-23 2015-12-16 山东大学 Telescopic rebound detection device and use method thereof
CN105158096B (en) * 2015-04-23 2018-02-16 山东大学 Extension type checking spring range device and its application method
CN105300820A (en) * 2015-11-17 2016-02-03 杭州市质量技术监督检测院 Textile compression resilience tester

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150422

Termination date: 20151104

EXPY Termination of patent right or utility model