CN100427953C - Hydraulic ejection experimental facility - Google Patents

Hydraulic ejection experimental facility Download PDF

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Publication number
CN100427953C
CN100427953C CNB2007100101002A CN200710010100A CN100427953C CN 100427953 C CN100427953 C CN 100427953C CN B2007100101002 A CNB2007100101002 A CN B2007100101002A CN 200710010100 A CN200710010100 A CN 200710010100A CN 100427953 C CN100427953 C CN 100427953C
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China
Prior art keywords
hydraulic
valve
solenoid valve
ejection
retaining
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CNB2007100101002A
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Chinese (zh)
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CN101029901A (en
Inventor
杨忠伟
王明家
裴定勇
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Jinzhou Jinheng Car Safety System Co., Ltd.
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JINHENG MOTOR SAFETY SYSTEM CO Ltd JINZHOU
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Priority to CNB2007100101002A priority Critical patent/CN100427953C/en
Publication of CN101029901A publication Critical patent/CN101029901A/en
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Abstract

A tester of hydraulic ejection consists of ejection assembly, steering wheel support assembly, signal collection unit and control unit. It is featured as forming ejection assembly by base, support, hydraulic system, guide rail support and purchase tackle; forming said hydraulic system by one-way valve connected separately at two ends of hydraulic cylinder and accumulator being set on pipeline between two said one-way valves.

Description

Hydraulic ejection experimental facility
Technical field
The present invention relates to be used for necessity test-capitiform thing impulse test and the used experimental machine of half body dummy impulse test of air bag exploitation and steering design, particularly a kind ofly be used to assess air bag passenger protection effect and steering hydraulic ejection experimental facility to the human injury.
Background technology
Be used for the test safety air bag at present passenger protection effect and steering are mainly contained three types to human injury's equipment: 1, the several nitrogen cylinders of air-driven type-employing are as power source, ejection speed is 6.8m/s, its major defect is difficulty of control ratio, the test specimen ejection speed is slow, and speed repeatability is bad; 2, mechanical drive type-constitute by 25KW variable-frequency motor, haulage cable, pulley blocks, rail brackets, guide rail, coaster etc., ejection speed is 6.8m/s, and its major defect is to take up room greatly, and the entire length size is greater than 10m, power of motor is not fully utilized, and ejection speed does not improve; 3, hydraulic pressure and mechanical drive associative form-, form by spring emission test specimen again by hydraulic cylinder pulling spring, ejection speed is 7.5m/s, its shortcoming is that structure is loaded down with trivial details, though ejection speed increase, still lower generally.
In addition, the above-mentioned three types test safety air bag that is used for all has only a kind of experiential function to passenger protection effect and steering to human injury's equipment, can only do half body dummy experiment for preceding two kinds, and the back is a kind of can only do the experiment of capitiform thing.
Summary of the invention
The objective of the invention is to solve the problems referred to above that prior art exists, provide a kind of and can do half body dummy experiment, can do the experiment of capitiform thing again, and simple to operate, speed good reproducibility, compact conformation, the fast hydraulic ejection experimental facility of ejection speed.
The present invention is achieved in that it is by the ejection system assembly, the tho wheel support assembly, signal gathering unit and control module 16 constitute, described ejection system assembly is by base 19 and support 4, be installed in the hydraulic system 1 on the support 4 respectively, guide rail bracket 6 and the coaster assembly 5 that is placed on the guide rail bracket 6 constitute, described hydraulic system 1 comprises hydraulic cylinder 112, fuel tank 101, motor 102 and hydraulic pump 103, its special character is: the two ends at hydraulic cylinder 112 are communicated with retaining valve 113 and 117 respectively, pass through pipeline connection between two retaining valves 113 and 117, on the pipeline between two retaining valves 113 and 117, be provided with accumulator 115, be parallel with pressure switch or pressure transducer 116 at accumulator 115 entrance points, the retaining valve 113 of described hydraulic cylinder 112 right-hand members is a hydraulic control one-way valve, the output terminal of hydraulic pump 103 is parallel with solenoid valve 104 respectively, solenoid valve 109 and solenoid valve 108, the endpiece of described solenoid valve 108 is communicated with the two ends and the fuel tank 101 of hydraulic cylinder 112 respectively, the endpiece of solenoid valve 109 is communicated with retaining valve 113 and fuel tank 101 respectively, is provided with retaining valve 111 on solenoid valve 109 and pipeline that retaining valve 113 is communicated with.
Above-mentioned hydraulic ejection experimental facility, described retaining valve 113 and retaining valve 117 are inserted valve, so that realize high speed impact.
Above-mentioned hydraulic ejection experimental facility, described hydraulic system 1 is connected with support 4 with bolt 2 by web joint 3, corresponding bolt 2 places are provided with bar hole 301 on web joint 3, are provided with to adjust screw rod 21 below corresponding web joint 3 on the support 4, so that adjust the vertical height of hydraulic system 1.
Above-mentioned hydraulic ejection experimental facility, described tho wheel support assembly are by base 15, are fixed on the bearing circle fixture stand 13 on the base 15 and the bearing circle clamping fixture seat 11 that is fixed on the bearing circle fixture stand 13 constitutes.
Above-mentioned hydraulic ejection experimental facility, the corresponding bearing circle place that supports is provided with arc strip hole 1101 on bearing circle clamping fixture seat 11, to adjust the angle of inclination of bearing circle.
Advantage of the present invention is: compact conformation, simple to operate, owing to be communicated with retaining valve respectively at the two ends of hydraulic cylinder, between two retaining valves, be provided with accumulator, so just, formed a differential link circuit, therefore can realize high speed impact, guarantee that the test specimen ejection speed is fast, the speed good reproducibility, can do half body dummy experiment, also can do the experiment of capitiform thing.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is that the B of Fig. 1 is to view;
Fig. 4 is a hydraulic system principle figure of the present invention;
Fig. 5 is a circuit block diagram of the present invention;
Fig. 6 is the structural representation of coaster assembly of the present invention;
Among the figure: 1-hydraulic system, 101-fuel tank, 102-motor, the 103-hydraulic pump, 104-solenoid valve, 105-surplus valve, the 106-pressure meter switch, 107-tensimeter, 108-solenoid valve, the 109-solenoid valve, 110-stop valve, 111-retaining valve, the 112-hydraulic cylinder, 113-retaining valve, 114-solenoid valve, the 115-accumulator, 116-pressure switch or pressure transducer, 117-retaining valve, 118-pressure switch or pressure transducer, 2-bolt, 3-web joint, the 301-bar hole, 4-support, 5-coaster assembly, the 501-stiffening plate, 502-straight pin, 503-castor, the 504-header board, 505-backup plate, the spacing screw rod of 506-, the 507-adapter sleeve, 6-guide rail bracket, 7-energy absorbing tube, 8-energy-absorbing base, 9-optoelectronic switch support, 10-optoelectronic switch, 11-bearing circle clamping fixture seat, 1101-arc strip hole, 12-bearing circle, 13-bearing circle fixture mount, 14-bolt, 15-base, the 16-control module, 17-bolt, 18-bolt, the 19-base, the 20-foot bolt, 21-adjusts screw rod, the 22-screw plate, 23-support member, 24-back shaft, the 25-industrial computer, the 26-unit of recording a video, 27-portfire, 28-display, the 29-electric wire strain gauge, the 30-sensor.
Embodiment:
As shown in the figure, this hydraulic ejection experimental facility is to be made of ejection system assembly, tho wheel support assembly, signal gathering unit and control module 16.Described ejection system assembly is to be fixed on support 4 on the base 19 by base 19 with by bolt 18, be installed in the hydraulic system 1 and the guide rail bracket 6 of support 4 both sides respectively, the energy-absorbing base 8 that is placed on the coaster assembly 5 on the guide rail bracket 6 and is fixed on guide rail bracket 6 front ends constitutes, and described guide rail bracket 6 is two and is fixed on support 4 front sides by bolt 17 symmetries.Described coaster assembly 5 is by header board 504, be separately fixed at the castor 503 and the spacing screw rod 506 at header board 504 two ends, be located at the adapter sleeve 507 and the backup plate 505 at header board 504 middle parts, straight pin 502 by being threaded in backup plate 505 front ends and be welded on backup plate 505 and adapter sleeve 507 between stiffening plate 501 constitute, on energy-absorbing base 8, be set with energy absorbing tube 7.Rear side at support 4 is fixed with web joint 3 by bolt 2, corresponding bolt 2 places are provided with bar hole 301 on web joint 3, hydraulic system 1 is being welded with screw plate 22 below corresponding web joint 3 middle parts by being bolted on the web joint 3 on the support 4, is provided with to adjust screw rod 21 on screw plate 22.Described hydraulic system 1 comprises by bolt and is supported on hydraulic cylinder 112 on the web joint 3, fuel tank 101, motor 102 and hydraulic pump 103, above the two ends of hydraulic cylinder 112, be communicated with retaining valve 113 and 117 respectively, described retaining valve 113 and retaining valve 117 are inserted valve, pass through pipeline connection between two retaining valves 113 and 117, on the pipeline between two retaining valves 113 and 117, be provided with accumulator 115, be parallel with pressure switch or pressure transducer 116 at accumulator 115 entrance points, the retaining valve 113 of described hydraulic cylinder 112 right-hand members is provided with two-position three way magnetic valve 114, and retaining valve 113 and two-position three way magnetic valve 114 constitute hydraulic control one-way valve.Output terminal at hydraulic pump 103 is parallel with two-position two-way solenoid valve 104 respectively, two-position three way magnetic valve 109, two-position four-way solenoid valve 108 and tensimeter 107 and surplus valve 105, the endpiece of described solenoid valve 104 is communicated with fuel tank 101, the endpiece of solenoid valve 108 is communicated with the two ends and the fuel tank 101 of hydraulic cylinder 112 respectively, the endpiece of solenoid valve 109 is communicated with hydraulic control one-way valve 113 and fuel tank 101 respectively, on solenoid valve 109 and pipeline that hydraulic control one-way valve 113 is communicated with, be provided with stop valve 110 and retaining valve 111, on solenoid valve 108 and pipeline that hydraulic cylinder 112 left ends are communicated with, be provided with pressure switch or pressure transducer 118, be provided with pressure meter switch 106 in tensimeter 107 porch, constitute hydraulic system 1 with upper-part.Described tho wheel support assembly is by base 15, is fixed on the bearing circle fixture stand 13 on the base 15 and the bearing circle clamping fixture seat 11 that is fixed on the bearing circle fixture stand 13 by bolt 14 constitutes by bolt 18.14 places are provided with bar hole at bearing circle fixture stand 13 corresponding bolts, so that adjust the vertical height of bearing circle clamping fixture seat 11.The used bearing circle 12 of fixation test on bearing circle clamping fixture seat 11, the lower end of bearing circle 12 is hinged on the front end of bearing circle clamping fixture seat 11, run through at the rear portion of bearing circle clamping fixture seat 11 and to be fixed with back shaft 24, be set with support member 23 at the middle part of back shaft 24, the upper support of bearing circle 12 is on support member 23, correspondence runs through back shaft 24 places and is provided with arc strip hole 1101 on bearing circle clamping fixture seat 11, to adjust the angle of inclination of bearing circle 12.Described signal gathering unit is to be made of two pairs of optoelectronic switches 10 that optoelectronic switch support 9 that is fixed on both sides, base 15 rear end by the bolt symmetry and symmetry are located on the optoelectronic switch support 9.Described control module 16 is to be made of industrial computer 25, display 28 and electric wire strain gauge 29, the input port of industrial computer 25 is connected with optoelectronic switch 10, and the delivery outlet of industrial computer 25 is connected with 118 with solenoid valve 104, solenoid valve 108, solenoid valve 109, solenoid valve 114, pressure switch or pressure transducer 116 in the hydraulic system with video recording unit 26 respectively.
During experiment, this hydraulic ejection experimental facility is fixed on the ground runners with foot bolt 20, used test specimen-capitiform thing or the half body dummy of experiment is inserted on the straight pin 502 of backup plate 505 front ends, sensor 30 is set in test specimen, the used air bag of fixing experiment on bearing circle 12, sensor 30 is connected with the input port of industrial computer 25 by electric wire strain gauge 29, and the delivery outlet of industrial computer 25 portfire 27 interior with being located at air bag is connected.Connect industrial computer 25, display 28, electric wire strain gauge 29, enter the capture program of industrial computer 25, adjust drift, set sensitivity, experimental pressure, delay time, primer fluid pressing system 1, at first to accumulator 115 topping ups: solenoid valve 109 energisings, the hydraulic oil of being got by hydraulic pump 103 passes through solenoid valve 109 successively, stop valve 110, retaining valve 111 and hydraulic control one-way valve 113 are to accumulator 115 topping ups, when supercharging pressure reaches the force value of default, pressure switch or pressure transducer 116 are posted a letter, solenoid valve 109 outages, solenoid valve 104 outages, accumulation of energy stops, and hydraulic pump 103 is by solenoid valve 104 off-loads; Realize then impacting: solenoid valve 114 energisings, retaining valve 113 becomes hydraulic control one-way valve, accumulator 115, retaining valve 113 and 117 and hydraulic cylinder 112 form a differential link circuit, accumulator 115 discharges the hydraulic pressure energy, enter into the rodless cavity of hydraulic cylinder 112 by hydraulic control one-way valve 113, realize high speed impact thereby promote piston; When piston rod impacts to preceding terminal, optoelectronic switch 10 is posted a letter, solenoid valve 108 energising conductings, the rodless cavity of hydraulic cylinder 112 is by solenoid valve 108 off-loads, and piston rod is retracted into the back terminal at a slow speed, and pressure raises thereupon, pressure switch or pressure transducer 118 are posted a letter, solenoid valve 108 and solenoid valve 104 outages, hydraulic pump 103 off-loads, so far hydraulic system 1 has been finished once and has highly been impacted.Finish in the process of high speed impact in hydraulic system 1, the coaster assembly 5 that the piston rod promotion of the hydraulic cylinder 112 that high speed is stretched out is loaded with capitiform thing or half body dummy advances, piston rod is withdrawn automatically at stroke terminal, coaster assembly 5 continues preshoot under inertia effect, behind the bump energy absorbing tube 7, coaster assembly 5 halts, and capitiform thing or half body dummy continue inertia impact, the air bag of using until striking experiment.In impact process, test the speed by 10 pairs of test specimens of optoelectronic switch, the signal of gathering is passed to industrial computer 25, industrial computer 25 output ignition signals are given portfire 27; Simultaneously, gather acceleration signal,, obtain acceleration signal, after industrial computer 25 analyzing and processing, by display 28 display result, printout through electric wire strain gauge 29 input industrial computers 25 by sensor 30.

Claims (5)

1. hydraulic ejection experimental facility, it is by the ejection system assembly, the tho wheel support assembly, signal gathering unit and control module (16) constitute, described ejection system assembly is by base (19) and support (4), be installed in the hydraulic system (1) on the support (4) respectively, guide rail bracket (6) and the coaster assembly (5) that is placed on the guide rail bracket (6) constitute, described hydraulic system (1) comprises hydraulic cylinder (112), fuel tank (101), motor (102) and hydraulic pump (103), it is characterized in that: be communicated with retaining valve (113) and (117) respectively at the two ends of hydraulic cylinder (112), pass through pipeline connection between two retaining valves (113) and (117), on the pipeline between two retaining valves (113) and (117), be provided with accumulator (115), be parallel with pressure switch or pressure transducer (116) at accumulator (115) entrance point, the retaining valve (113) of described hydraulic cylinder (112) right-hand member is a hydraulic control one-way valve, the output terminal of hydraulic pump (103) is parallel with solenoid valve (104) respectively, solenoid valve (109) and solenoid valve (108), the endpiece of described solenoid valve (108) is communicated with the two ends and the fuel tank (101) of hydraulic cylinder (112) respectively, the endpiece of solenoid valve (109) is communicated with retaining valve (113) and fuel tank (101) respectively, is provided with retaining valve (111) on solenoid valve (109) and pipeline that retaining valve (113) is communicated with.
2, hydraulic ejection experimental facility according to claim 1 is characterized in that: described retaining valve (113) and retaining valve (117) are inserted valve.
3, hydraulic ejection experimental facility according to claim 1, it is characterized in that: described hydraulic system (1) is connected with support (4) with bolt (2) by web joint (3), go up corresponding bolt (2) at web joint (3) and locate to be provided with bar hole (301), go up corresponding web joint (3) below at support (4) and be provided with adjustment screw rod (21).
4, hydraulic ejection experimental facility according to claim 1 is characterized in that: described tho wheel support assembly is by base (15), is fixed on the bearing circle fixture stand (13) on the base (15) and the bearing circle clamping fixture seat (11) that is fixed on the bearing circle fixture stand (13) constitutes.
5, hydraulic ejection experimental facility according to claim 4 is characterized in that: go up the corresponding bearing circle place that supports at bearing circle clamping fixture seat (11) and be provided with arc strip hole (1101).
CNB2007100101002A 2007-01-15 2007-01-15 Hydraulic ejection experimental facility Active CN100427953C (en)

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CN100427953C true CN100427953C (en) 2008-10-22

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102928187B (en) * 2012-10-29 2015-09-23 长城汽车股份有限公司 pedestrian head model recovery device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5709246A (en) * 1996-11-04 1998-01-20 Midland Brake, Inc. Booster valve with contaminant ejection for use in a pneumatic brake system
US6042199A (en) * 1996-07-31 2000-03-28 Jidosha Kiki Co., Ltd. Anti-skid brake control system with vacuum driven pump
JP2003329538A (en) * 2002-05-09 2003-11-19 Mitsubishi Heavy Ind Ltd Vehicle crash test apparatus and method therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6042199A (en) * 1996-07-31 2000-03-28 Jidosha Kiki Co., Ltd. Anti-skid brake control system with vacuum driven pump
US5709246A (en) * 1996-11-04 1998-01-20 Midland Brake, Inc. Booster valve with contaminant ejection for use in a pneumatic brake system
JP2003329538A (en) * 2002-05-09 2003-11-19 Mitsubishi Heavy Ind Ltd Vehicle crash test apparatus and method therefor

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
无人机气液压弹射装置的关键系统设计. 李悦等.南昌航空工业学院学报,第16卷第2期. 2002
无人机气液压弹射装置的关键系统设计. 李悦等.南昌航空工业学院学报,第16卷第2期. 2002 *
汽车碰撞试验中远程控制制动装置的研究. 乌秀春,商恩义,王立秋.辽宁工学院学报,第24卷第2期. 2004
汽车碰撞试验中远程控制制动装置的研究. 乌秀春,商恩义,王立秋.辽宁工学院学报,第24卷第2期. 2004 *

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Address after: 121007 Jinzhou economic and Technological Development Zone, Bohai, the main street, No. 4, No., No. 16

Patentee after: Jinzhou Jinheng Car Safety System Co., Ltd.

Address before: 121007 Jinzhou economic and Technological Development Zone, Bohai, the main street, No. 4, No., No. 16

Patentee before: Jinheng Motor Safety System Co., Ltd., Jinzhou

Address after: 121007 Jinzhou economic and Technological Development Zone, Bohai, the main street, No. 4, No., No. 16

Patentee after: Jinzhou Jinheng Car Safety System Co., Ltd.

Address before: 121007 Jinzhou economic and Technological Development Zone, Bohai, the main street, No. 4, No., No. 16

Patentee before: Jinheng Motor Safety System Co., Ltd., Jinzhou

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Hydraulic ejection experimental facility

Effective date of registration: 20200608

Granted publication date: 20081022

Pledgee: Jinzhou Bank Co., Ltd. urban construction sub branch

Pledgor: JINZHOU JINHENG AUTOMOTIVE SAFETY SYSTEM Co.,Ltd.

Registration number: Y2020210000024