CN100416258C - Device for testing intensity of goggles on motorcycle helmet - Google Patents
Device for testing intensity of goggles on motorcycle helmet Download PDFInfo
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- CN100416258C CN100416258C CNB2005100125648A CN200510012564A CN100416258C CN 100416258 C CN100416258 C CN 100416258C CN B2005100125648 A CNB2005100125648 A CN B2005100125648A CN 200510012564 A CN200510012564 A CN 200510012564A CN 100416258 C CN100416258 C CN 100416258C
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- goggles
- urceolus
- motorcycle helmet
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Abstract
The present invention relates to a device for testing the intensity of goggles of a motorcycle helmet. The device is composed of a bottom seat, a driving control mechanism fixed on the bottom seat, a rate generator, a releasing mechanism and a speed measuring device which is arranged at the front end of a transmitting pipe. The present invention adopts a unique air sealing structure, the transmitting speed of a lead missile can be regulated within a definite distance, the real-time speed measuring device is adopted, and the speed of each lead missile can be tested, so that the present invention provides reliable data for tests. The present invention adopts an electrical control transmitting method, transmitting can not be carried out without a power source, and personnel can be in a safe position during the tests. The present invention has good safety and is suitable for the testing of the goggles of the motorcycle helmet and similar shock tests.
Description
Affiliated technical field
The present invention relates to a kind of pick-up unit, be used for the intensity detection of goggles on motorcycle helmet.
Background technology
Motorcycle has obtained developing rapidly in China, and in order to guarantee motor driver and occupant's safety, China's traffic law clearly regulation motor driver and occupant must be worn crash helmet when driving and taking motorcycle.Helmet safety goggles is the important component part of the helmet, in the motor test item, technical requirement that goggles on motorcycle helmet is detected has clearly been proposed, substantially with 140～170m/s velocity shock goggles on motorcycle helmet, whether the intensity that detects goggles on motorcycle helmet meets the demands the testing conditions regulation with the spherical plumb of quality 1 ± 0.1g.
There is the air gun of various models can be used for launching plumb both at home and abroad, most of air gun is for the fire accuracy on satisfying at a distance, needs consider that the shape of bullet satisfies the attitude stability in the projectile flight process, so mostly being afterbody, the shape of plumb has certain shape, and power valve is designed to the rifle structure, to give plumb certain rotational speed.Therefore, though the kind of air gun is a lot, but there is not a kind of air gun that can satisfy intensity of goggles on motorcycle helmet detection launch requirements fully with plumb.And, listed air gun the category of control firearms in along with the enforcement of China's firearm management way, general entity and individual must not have air gun.
Generally speaking, the structure of every kind of air gun product is certain, emission rate when it dispatches from the factory also is certain, but use along with air gun, its emission rate has bigger reduction, at present generally be the reduction that its initial velocity is judged in the reduction of reduction by fire accuracy and effective range, also do not have a kind of velocity test device that can be used for the detection by quantitative emission rate.
Therefore, from security consideration with satisfy the needs that goggles on motorcycle helmet detects, be badly in need of a kind of device for testing intensity of goggles on motorcycle helmet.
Summary of the invention
The purpose of this invention is to provide a kind of pick-up unit that is applicable to goggles on motorcycle helmet test and similar impulse test.
Device for testing intensity of goggles on motorcycle helmet of the present invention comprises a base and is fixed on transmission controlling mechanism, rate generator and releasing mechanism on the base separately, wherein,
Rate generator is made up of spring base, piston rod, piston cylinder, piston spring, urceolus and power valve, urceolus is fixed on the base, below its front portion, be provided with a gathering sill, the top has a ready service magazine, the fixedly connected power valve of the front end of urceolus, rear end and spring base flexibly connect, piston cylinder is sleeved in the urceolus, can in urceolus, move forward and backward, piston rod is installed in the piston cylinder, tail end is by stretching out in the spring base, and is provided with piston spring between piston rod and spring base, and the tail end of piston rod is provided with an annular groove.
Transmission controlling mechanism is made up of reducing motor, drive screw, bearing seat, travel switch and pulling-pushing rod, bearing seat is fixed on the base, drive screw is installed on the bearing seat, and be connected with reducing motor, be fixed with two travel switches with the drive screw parallel direction on the base, pulling-pushing rod is positioned at the centre of travel switch, is connected with drive screw by screw pair, and the gathering sill that urceolus is passed in its termination is fixed on the piston cylinder.
Releasing mechanism comprises that an electromagnet and one are positioned at the electromagnet front end, and by the sear of electromagnet and spring controlled motion, the termination of sear can be embedded in the annular groove of piston rod tail end.
The present invention also is equipped with a speed measuring device at the front end of power valve, and keeping at a certain distance away on speed measuring device is provided with several photoelectric sensors.After spherical plumb is by power valve, move forward, during through the photoelectric sensor on the speed measuring device, produce corresponding number signal, note by data acquisition system (DAS), obtain through each interlude, can calculate the average velocity of spherical plumb again according to the distance between the photoelectric sensor.
Power valve of the present invention is designed to smooth interior thorax structure.
Ring structure is adopted in sealing in the piston cylinder of the present invention, in the termination of piston rod multi-layer sealed circle is installed and is used for gas in the packed-piston tube, front end at piston cylinder is installed with an end cap simultaneously, the one side that end cap contacts with power valve is equipped with the sealing cushion pad and O-ring seal is used for sealing gas, the sealing cushion pad both had been used for gas in the packed-piston tube, can play buffer action again when the piston cylinder motion puts in place and launches.
Device of the present invention also has the function of regulating spherical plumb emission rate, can regulate the speed of emission plumb within the specific limits.The position of releasing mechanism and travel switch can be regulated before and after the launcher-tube line direction, when the scope of regulating when needs is big, can change the position of the travel switch of releasing mechanism or correspondence along launcher-tube line, change initial gas chamber volume, thereby in a big way, regulate the speed of spherical plumb; Spring base is threaded with outer tube rear end, and when needs were regulated spherical plumb speed among a small circle, the position that can rotate the regulating spring seat changed the working pressure of piston spring, thus the emission rate of regulating spherical plumb among a small circle.
Pick-up unit collection rate generator of the present invention, transmission controlling mechanism, releasing mechanism and speed measuring device are one, rate generator adopts spring-piston principle, the compressed gas room air forms high pressure, and spherical plumb is quickened to meet the requirements of experimental test speed along power valve.This pick-up unit adopts unique gas sealing structure, launches spherical plumb quality 1g, and high initial speed can reach 300m/s, and emission rate has controllability, can adjust in the scope of 60～300m/s, to satisfy the requirement of friction speed.
Electrical control is adopted in the emission control of pick-up unit, motion by motor, electromagnet and other control device control pistons and piston cylinder puts in place and controls and implement emission, during test, the launching crew can be in home, and there be not the emission to implement under the situation of AC power, have good experimental safe, can satisfy the requirement of social safety.
Pick-up unit has adopted real-time speed measuring device, can test record each send out the initial velocity of plumb, thereby judge whether each plumb reaches the desired speed index of test, for test provides the reliable velocity data.Speed measuring device adopts photoelectric sensor and data acquisition processing system, and time interval measuring accuracy can reach ± 3 μ s.
Proving installation compact conformation of the present invention, safe in utilization is specially adapted to the strength test of goggles on motorcycle helmet and the detection of similar impulse test.
Description of drawings
Fig. 1 is the structural representation of device for testing intensity of goggles on motorcycle helmet of the present invention.
Fig. 2 is the structural representation of Fig. 1 medium velocity generator.
Fig. 3 is the vertical view of Fig. 1.
Embodiment
Device for testing intensity of goggles on motorcycle helmet of the present invention is made up of base 15, transmission controlling mechanism, rate generator, releasing mechanism 2 and speed measuring device more than 9 parts as shown in Figure 1.Wherein releasing mechanism 2 directly is fixed on the base 15, and rate generator is fixed on the base 15 by urceolus 6, and the reducing motor 1 in the transmission controlling mechanism, bearing seat 10 and travel switch 13 also are separately fixed on the base 15.
The structure of rate generator is set with a piston cylinder that can move forward and backward 7 as shown in Figure 2 in urceolus 6, piston rod 4 is installed in the piston cylinder 7, and in the termination of piston rod 4 multi-layer sealed circle 20 is installed, and is used for gas in the packed-piston tube.The front end of piston cylinder 7 is installed with an end cap 18, and sealing cushion pad 17 and O-ring seal 16 are installed between end cap 18 and the power valve 8 of fixedlying connected with urceolus 6 front ends, has both played sealing function, plays the buffer action that the piston cylinder motion puts in place and launches again.Piston spring 5 is contained on the piston rod 4, and the spring base 3 that is threaded by urceolus 6 tail ends is fixed in the urceolus 6, and the tail end of piston rod 4 is provided with an annular groove by stretching out in the spring base 3.Be provided with a bar shaped gathering sill 19 below urceolus 6 front portions, the top has a bar shaped ready service magazine 22.
Transmission controlling mechanism is made up of reducing motor 1, drive screw 12, bearing seat 10, travel switch 13 and pulling-pushing rod 11, and drive screw 12 is installed on the bearing seat 10, is connected with reducing motor 1 by shaft joint 14.Pulling-pushing rod 11 is connected with drive screw 12 by screw pair, and the gathering sill 19 that urceolus 6 is passed in its termination is fixed on the piston cylinder 7.On base 15, be fixed with two travel switches 13 that are used to control pulling-pushing rod 11 motion front and back positions with drive screw 12 parallel directions, pulling-pushing rod 11 is positioned at the centre of travel switch 13, can only drive piston cylinder 7 along the gathering sill on the urceolus 6 19 and seesaw between two travel switches 13.
The structure of releasing mechanism 2 comprises that an electromagnet 23 and one are positioned at electromagnet 23 front ends as shown in Figure 3, by the sear 21 of electromagnet 23 and spring controlled motion, gives electromagnet 23 energisings, sear 21 by adhesive to compression position, and with length of spring compressed; During electromagnet 23 outages, under spring action, promote sear 21 and stretch out forward, be embedded in the annular groove of piston rod 4 tail ends, piston rod 4 is fastened; Give electromagnet 23 energisings once more, to compression position, piston rod 4 moves rapidly forward under piston spring 5 effects sear 21 by adhesive.
The position of releasing mechanism 2 and travel switch 13 can be regulated before and after power valve 8 axis directions, with the position of control piston bar 4 at piston cylinder 7 rears, regulates initial gas chamber volume thereby reach, and regulates the speed of spherical plumb in a big way.Spring base 3 is threaded with urceolus 6 rear ends, can rotate regulating spring seat 3, with the working pressure of change piston spring 5, thus the emission rate of regulating spherical plumb among a small circle.
Speed measuring device 9 is fixed on the front portion of power valve 8, on speed measuring device 9, keep at a certain distance away and be provided with several photoelectric sensors, when spherical plumb passes through speed measuring device 9, photoelectric sensor produces number signal, by the data acquisition system (DAS) record, can accurately test out the velocity of discharge of each plumb.
The course of work principle of pick-up unit is: under electrical apparatus control system control, reducing motor 1 rotates, driving drive screw 12 by shaft joint 14 rotatablely moves, and then drive pulling-pushing rod 11 by screw pair and in the gathering sill 19 of urceolus 6, do rectilinear motion, drive piston cylinder 7 and move backward, while piston cylinder 7 drives piston rod 4 compression piston springs 5 again and moves backward.When pulling-pushing rod 11 touched the travel switch 13 that is positioned at the rear end, electrical apparatus control system control reducing motor 1 stopped operating, and the motion of each parts stops, and this moment, the sear 21 of releasing mechanism 2 was buckled in the annular groove of piston rod 4 rear ends.Spherical plumb is manually packed in the tail end hole of power valve 8 by the ready service magazine 22 of urceolus 6 upper ends.
Under electrical apparatus control system control, reducing motor 1 is done rotatablely move opposite with aforementioned direction, drive drive screw 12 reverse rotation campaigns by shaft joint 14, and then in the gathering sill 19 of urceolus 6, do rectilinear motion, drive piston cylinder 7 and travel forward by screw pair drive pulling-pushing rod 11.This moment, sear 21 was depressed into the position, forefront under spring action because electromagnet 23 is in off-position, be buckled in the annular groove of piston rod 4 rear ends, piston rod 4 can not be travelled forward with piston cylinder 7, rest on the rear position, piston spring 5 is in most compressed state.When pulling-pushing rod 11 touched the travel switch 13 that is positioned at front end, electrical apparatus control system control reducing motor 1 stopped operating, and piston cylinder 7 motions stop.
Under electrical apparatus control system control, energising adhesive electromagnet 23 drives sear 21 and moves backward, makes sear 21 break away from the annular groove of piston rod 4, and piston rod 4 travels forward rapidly under the effect of piston spring 5 at this moment, and pressurized air forms gases at high pressure.Because the sealing and the buffering effect of O- ring seal 16,20 and sealing cushion pad 17, make gases at high pressure can only promote spherical plumb in the power valve 8 along power valve accelerated motion forward, until penetrating the power valve oral area with certain speed.
When spherical plumb passes through the speed measuring device 9 of power valve 8 front ends, trigger the some photoelectric sensors on the speed measuring device 9 respectively, trigger pip is obtained and write down to data acquisition system (DAS), and according to time interval of record and given transducer spacing from, calculate the speed of spherical plumb.Because distance is very near between the sensor, the speed that calculates can be thought the velocity of discharge of spherical plumb.
When carrying out the emission of spherical plumb once more, repeat above-mentioned steps.
Claims (6)
1. device for testing intensity of goggles on motorcycle helmet comprises a base and is fixed on transmission controlling mechanism, rate generator and releasing mechanism on the base separately, it is characterized in that:
Described rate generator is by spring base, piston rod, piston cylinder, piston spring, urceolus and power valve are formed, urceolus is fixed on the base, below its front portion, be provided with a gathering sill, the top has a ready service magazine, the fixedly connected power valve of the front end of urceolus, rear end and spring base flexibly connect, piston cylinder is sleeved in the urceolus, can in urceolus, move forward and backward, piston rod is installed in the piston cylinder, and tail end is by stretching out in the spring base, and is provided with piston spring between piston rod and spring base, the tail end of piston rod is provided with an annular groove, at the front end of power valve a speed measuring device is installed;
Described transmission controlling mechanism is made up of reducing motor, drive screw, bearing seat, travel switch and pulling-pushing rod, bearing seat is fixed on the base, drive screw is installed on the bearing seat, and be connected with reducing motor, be fixed with two travel switches with the drive screw parallel direction on the base, pulling-pushing rod is positioned at the centre of travel switch, is connected with drive screw by screw pair, and the gathering sill that urceolus is passed in its termination is fixed on the piston cylinder;
Described releasing mechanism comprises that an electromagnet and one are positioned at the electromagnet front end, and by the sear of electromagnet and spring controlled motion, the termination of sear can be embedded in the annular groove of piston rod tail end.
2. device for testing intensity of goggles on motorcycle helmet according to claim 1 is characterized in that being installed with an end cap at the front end of piston cylinder, and the one side that end cap contacts with power valve is equipped with the sealing cushion pad.
3. device for testing intensity of goggles on motorcycle helmet according to claim 1 is characterized in that described spring base is threaded with outer tube rear end.
4. device for testing intensity of goggles on motorcycle helmet according to claim 1 is characterized in that power valve is smooth interior thorax structure.
5. device for testing intensity of goggles on motorcycle helmet according to claim 1 is characterized in that the position of releasing mechanism can be regulated before and after the launcher-tube line direction.
6. device for testing intensity of goggles on motorcycle helmet according to claim 1 is characterized in that the position of travel switch can be regulated before and after the launcher-tube line direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100125648A CN100416258C (en) | 2005-05-31 | 2005-05-31 | Device for testing intensity of goggles on motorcycle helmet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100125648A CN100416258C (en) | 2005-05-31 | 2005-05-31 | Device for testing intensity of goggles on motorcycle helmet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1696648A CN1696648A (en) | 2005-11-16 |
| CN100416258C true CN100416258C (en) | 2008-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100125648A Expired - Fee Related CN100416258C (en) | 2005-05-31 | 2005-05-31 | Device for testing intensity of goggles on motorcycle helmet |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315262B (en) * | 2008-06-03 | 2012-07-25 | 北京航空航天大学 | Movement objective generating device |
| CN103105339A (en) * | 2013-02-06 | 2013-05-15 | 杭州奥普卫厨科技有限公司 | Infrared bulb impact resistance tester |
| CN104568621B (en) * | 2014-11-04 | 2017-09-26 | 中国航天科工集团第六研究院四十一所 | A kind of " O " type rebound rate of sealing ring devices and methods therefor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10009987A1 (en) * | 2000-03-01 | 2001-09-06 | Heinz Kreiskorte | Test device for generating shock and impact loads, has mass that strikes test object via striking head, when mass accelerates to test speed via the supply of compressed air in cylinder |
| EP1236987A2 (en) * | 2001-01-31 | 2002-09-04 | Erwin Deutscher | Launching device for accelerating a test object |
| US20030074949A1 (en) * | 2000-06-30 | 2003-04-24 | Carlo Albertini | Collision test apparatus |
| CN2833567Y (en) * | 2005-05-31 | 2006-11-01 | 中北大学 | Motorcycle helmet goggle strength detector |
-
2005
- 2005-05-31 CN CNB2005100125648A patent/CN100416258C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10009987A1 (en) * | 2000-03-01 | 2001-09-06 | Heinz Kreiskorte | Test device for generating shock and impact loads, has mass that strikes test object via striking head, when mass accelerates to test speed via the supply of compressed air in cylinder |
| US20030074949A1 (en) * | 2000-06-30 | 2003-04-24 | Carlo Albertini | Collision test apparatus |
| EP1236987A2 (en) * | 2001-01-31 | 2002-09-04 | Erwin Deutscher | Launching device for accelerating a test object |
| CN2833567Y (en) * | 2005-05-31 | 2006-11-01 | 中北大学 | Motorcycle helmet goggle strength detector |
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| Publication number | Publication date |
|---|---|
| CN1696648A (en) | 2005-11-16 |
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Granted publication date: 20080903 Termination date: 20100531 |