CN104422621B - The high temperature resistant that dynamic response transmission characteristic is tested under a kind of thermal environment is dropped hammer device - Google Patents
The high temperature resistant that dynamic response transmission characteristic is tested under a kind of thermal environment is dropped hammer device Download PDFInfo
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- CN104422621B CN104422621B CN201310396179.2A CN201310396179A CN104422621B CN 104422621 B CN104422621 B CN 104422621B CN 201310396179 A CN201310396179 A CN 201310396179A CN 104422621 B CN104422621 B CN 104422621B
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Abstract
The high temperature resistant tested the present invention relates to dynamic response transmission characteristic under a kind of thermal environment is dropped hammer device, it is characterised in that：Including installing plate, tup bearing, bearing connecting rod, tup；Described bearing connecting rod one end is rotatably connected with the installing plate upper surface, and the other end is fixed with the tup bearing；The tup is arranged on described tup bearing one end, and tup axis is vertical with the bearing connecting rod axis；Also include the remote control line bracket that one end is fixed on the installing plate upper surface, the other end of the remote control line bracket is provided with carrier openings；Also it is fixed on including one end in the bearing connecting rod, the other end passes through the carrier openings and continues the remote control line of extension.The high temperature resistant of the present invention device that drops hammer overcomes the influence of high temperature, and simple in construction, small scale, flexible and convenient to use to produce interference with heating system.
Description
Technical field
The present invention relates to the experiment field of aircraft or other structures heating part under thermal environment, and in particular to Yi Zhongre
The high temperature resistant that dynamic response transmission characteristic is tested under environment is dropped hammer device.
Background technology
The continuous propulsion developed with glide vehicle, the Mach number more and more higher of aircraft flight, its key structure
Temperature elevation amplitude under pneumatic heat effect is very big, in order to study the dynamics transmission characteristic of heated structure at high temperature, it is necessary to
The dynamic response transmission characteristic experiment of heated structure in high temperature environments is carried out, and is needed in the experiment of thermal environment dynamic response transmission characteristic
The problem to be solved is the exciting that drops hammer the transient state that the testpieces under high temperature carries out certain value, and needs to control and survey
Acceleration amplitude and attack time during amount drop hammer testpieces.Through consulting domestic and international Patents and data, not with it is resistance to
High temperature drops hammer device related patent and documents and materials, is learnt by investigation, because the higher dynamic response of environment temperature transmits special
Property experiment difficulty it is larger, such experiment for carrying out both at home and abroad seldom, the structure type and impact mould of the existing common device that drops hammer
Formula is relatively fixed, and is not suitable for the dynamic response transmission characteristic with heating system and is tested, heating system and between dropping hammer in structure
On can interfere, and the dynamic response transmission characteristic experiment under thermal environment needs different attack times, and this is to hammer head material
Requirement it is higher, the material of tup should have higher heat resistance also need to meeting desired damping, and existing
The tup that drops hammer is generally metal, nylon and elastomeric material, for the different attack times select different materials, but nylon and
Elastomeric material is not amenable to high temperature.Therefore the existing device that drops hammer exists obvious not enough, it is impossible to efficiently accomplish under thermal environment to examination
The transient state for testing part is dropped hammer exciting.
The content of the invention
The technical problem to be solved of the present invention is to provide a kind of influence for overcoming high temperature by the way of remote control, and
And simple in construction, small scale, it is flexible and convenient to use to produce dynamic response transmission characteristic under the thermal environment interfered with heating system
The high temperature resistant of experiment is dropped hammer device.
In order to solve the above-mentioned technical problem, the technical scheme is that, under a kind of thermal environment dynamic response transmission characteristic try
The high temperature resistant tested is dropped hammer device, it is characterised in that：Including installing plate, tup bearing, bearing connecting rod, tup；
Described bearing connecting rod one end is rotatably connected with the installing plate upper surface, and the other end is consolidated with the tup bearing
It is fixed；The tup is arranged on described tup bearing one end, and tup axis is vertical with the bearing connecting rod axis；
Also include the remote control line bracket that one end is fixed on the installing plate upper surface, the remote control line bracket
The other end is provided with carrier openings；
Also it is fixed on including one end in the bearing connecting rod, the other end is through the carrier openings and continues the remote of extension
Process control line.
Also include the high temperature resistant acceleration transducer being fixed on the tup bearing, the high temperature resistant acceleration transducer
Axis and the tup diameter parallel.
Also include the bearing block for being fixed on installing plate upper surface, the bearing block is flexibly connected with bearing connecting rod lower end.
The remote control line is bearing with the distance of the bearing connecting rod upper end with the link position of bearing connecting rod
The 1/3 of the length of connection.
In the carrier openings position, pulley gear can be set；The remote control line winds the pulley gear.
Length scale is provided with the remote control line.
The tup is that metal tup or high temperature alloy silk time are made into set hammer head；The high temperature alloy silk knitting forming tup
It is that winding is in the tup of cylinder on wrapping machine by high temperature alloy silk.
Beneficial effects of the present invention：
（1）The high temperature resistant of present invention device structure design under the requirement for meeting use condition of dropping hammer is simple, flexible for installation
It is convenient to interfere with the heating system in experiment, it is wide using scope；
（2）The present invention overcomes the influence that hot environment is brought by the way of remote control power hammer is tapped, and makes operator
Member can conveniently operate；
（3）Scale is set on remote control line, the size of percussion power can be more accurately controlled；
（4）Tup includes metal tup and high temperature alloy silk all over set hammer head is made into, and disclosure satisfy that and tests different requirements, this
Invention had not only provided the tup of different groups of Buddhist nuns but also can overcome influence of the high temperature to tup；
（5）High temperature resistant acceleration transducer on tup bearing can measure the impact of tup in high temperature environments and accelerate
Degree.
Brief description of the drawings
Fig. 1 is that the high temperature resistant that dynamic response transmission characteristic is tested under a kind of thermal environment of the invention is dropped hammer device front view；
Fig. 2 is that the high temperature resistant device that drops hammer that dynamic response transmission characteristic is tested under a kind of thermal environment of the invention shows top view；
Fig. 3 is that the high temperature resistant that dynamic response transmission characteristic is tested under a kind of thermal environment of the invention is dropped hammer device application schematic diagram；
Fig. 4 is testpieces temperature changing curve diagram in the experimentation for the device that dropped hammer using high temperature resistant of the invention；
Fig. 5 be application the present invention high temperature resistant drop hammer device large impact experimentation in high temperature resistant drop hammer device tap examination
Test the impact acceleration curve map of part；
Fig. 6 be application the present invention high temperature resistant drop hammer device small impact experiment during high temperature resistant drop hammer device tap examination
Test the impact acceleration curve map of part；
In figure：1- bearing connecting rods, 2- bearing blocks, 3- hexagon socket cap head screws, 4- installing plates, 5- outer-hexagonal bolts,
6- remote control line brackets, 7- carrier openings, 8- tup bearings, 9- tups, 10- the first high temperature resistant acceleration transducers, 11- is remote
Process control line, 12- testpieces, 13- heaters, 14- the second high temperature resistant acceleration transducers, 15- ingot bars, 16- bolts.
Embodiment
The present invention is described further below in conjunction with drawings and examples.
The high temperature resistant that dynamic response transmission characteristic is tested under a kind of thermal environment of the invention as shown in Figure 1 is dropped hammer device, including branch
Seat connecting rod 1, bearing block 2, hexagon socket cap head screw 3, installing plate 4, outer-hexagonal bolts 5, remote control line bracket 6, support
Opening 7, tup bearing 8, tup 9, the first high temperature resistant acceleration transducer 10, remote control line 11.
Tup 9 is connected by screw thread with tup bearing 8, and the first high temperature resistant acceleration transducer 10 passes through with tup bearing 8
Bolt connection, tup bearing 8 welds together with the upper end of bearing connecting rod 1；
The lower end of bearing connecting rod 1 is flexibly connected with bearing block 2, and bearing block 2 passes through 4 interior hexagonal cylindrical heads with installing plate 4
Screw 3 is connected；Connecting hole is provided with bearing connecting rod 1, the distance of the connecting hole to the upper end of bearing connecting rod 1 is bearing
The 1/3 of the length of connection 1；
The one end of remote control line bracket 6 is connected by outer-hexagonal bolts 5 with installing plate 4, and the other end is provided with carrier openings 7,
In the position of carrier openings 7, pulley gear can be set；
The one end of remote control line 11 is connected with the connecting hole in bearing connecting rod 1, and the other end is extended to through carrier openings 7
The position of operating personnel's control；The remote control line 11 is provided with length scale；
Tup 9 includes metal tup and high temperature alloy silk knitting forming hammers first two into shape；The high temperature alloy silk knitting forming
Tup is specifically that winding requires that establishment is different in cylindrical tup, and according to different tests on wrapping machine by high temperature alloy silk
The tup of hardness, the different attack times are provided for experiment.
Two kinds of different tups dampings can provide the different attack times, both the above material can overcome again 650 DEG C and
The influence of high temperature above；The first high temperature resistant acceleration transducer 10 on tup bearing 8 can measure tup 9 in high temperature environments
Impact acceleration；The adjustable length of remote control line 11, selects suitable length according to environment temperature, makes position residing for operating personnel
Put and be not affected by high temperatures, remote control line 11 selects the preferable wire of rigidity, end is grasped with tightrope operating personnel easy to connect
Make, can realize that operating personnel can be placed in beyond thermal environment by the control hammered into shape to power again using remote control line 11, in order to control
The dynamics that power hammer is tapped sets scale in remote control line through the region of carrier openings, is pulled to power hammer not in formal test
Same scale is fallen, the tup impact accelerations different to testpieces generation, and the relation of control line scale and percussion power is according to pre-
Result of the test is determined.
As shown in figure 3, in process of the test, testpieces 12 is placed in heater 13, it is resistance to equipped with second on testpieces 12
High temperature acceleration transducer 14；Dress ingot bar 15 is taken around the position that hammering is needed on testpieces 12；By the installation for the device that drops hammer
Plate 4 is connected with ingot bar 15 by bolt 16, and setting height(from bottom) can be such that tup is tapped after falling to testpieces specified location, according to examination
Test the requirement selection to the attack time and different tups 9 are installed, then operating personnel are in the area apart from the certain distance of heater 13
Domain pulls remote control line 11, by order from small to large successively by the scale alignment bracket opening 7 on remote control line 11, and
Power hammer percussion is fallen, acceleration amplitude during the corresponding drop hammer of each scale is tested, reference is provided for formal test.
Impact acceleration amplitude in formal test further according to test requirements document selects corresponding scale to carry out drop hammer.
The device of the present invention is applied to dynamic response transmission characteristic experiment of certain aircraft cargo tank structure under thermal environment, it is real
Test condition, method and data as follows：
Experiment condition：
（1）The temperature of testpieces 12 reaches 650 DEG C；
（2）The boundary condition of testpieces 12 is freedom-free boundary；
（3）Amplitude is carried out in when the temperature of testpieces 12 is increased to 650 DEG C to testpieces 12 equal for 68g and 40g, attack time
For 6ms transient excitation.
By the free suspension of testpieces 12 and the second high temperature resistant acceleration transducer 14 of installation（Measure the sound of something astir on testpieces
Should）, heater 13 then is installed on the both sides of testpieces 12, exciting is needed on testpieces 12 after said system is installed
Take dress ingot bar 15 near position to be connected the installing plate 4 for the device that drops hammer by bolt 16 with ingot bar 15, setting height(from bottom) can make hammer
First 9 fall after tap and arrive testpieces Position of Vibrating, high temperature alloy silk is installed all over being made into type according to requirement of the experiment to the attack time
Tup, extends to operating area, operating personnel are apart from the certain distance of heater 12 by remote control line 11 through carrier openings
Region pull remote control line 11, by order from small to large successively by the scale alignment bracket opening on remote control line 11
And power hammer percussion is fallen, it is corresponding to test each scale using the first high temperature resistant acceleration transducer 10 on tup bearing 8
Acceleration amplitude during drop hammer, reference is provided for formal test.Start to start heater 13 after above-mentioned Job readiness is ready
Testpieces 12 is heated, remote control line is first pulled to 50g impact acceleration width when the temperature of testpieces 12 is increased to 650 DEG C
It is worth progress drop hammer at corresponding scale, remote control line is then pulled to the corresponding scale of 20g impact acceleration amplitudes again
Place carries out drop hammer, and tup 9 is measured using the first high temperature resistant acceleration transducer 10 on tup bearing 8 in each tap
Impact acceleration in high temperature environments.
Fig. 4 is the temperature variation curve of testpieces 12, and accompanying drawing 5,6 is that high temperature resistant is dropped hammer the impact acceleration that device taps twice
Curve.Above-mentioned as shown by data：The temperature of testpieces 12 has reached 650 DEG C, and middle high temperature resistant is dropped hammer exciting device work in high temperature environments
Make normal, amplitude and attack time Pass Test the condition requirement of impact acceleration.
Claims (6)
- The device 1. high temperature resistant that dynamic response transmission characteristic is tested under a kind of thermal environment is dropped hammer, it is characterised in that：Including installing plate, hammer Head bearing, bearing connecting rod, tup；Described bearing connecting rod one end is rotatably connected with the installing plate upper surface, and the other end is fixed with the tup bearing； The tup is arranged on described tup bearing one end, and tup axis is vertical with the bearing connecting rod axis；Also include one end and be fixed on the remote control line bracket of the installing plate upper surface, the remote control line bracket it is another End is provided with carrier openings；Also it is fixed on including one end in the bearing connecting rod, the other end passes through the carrier openings and continues the long-range control of extension Line processed；The tup is that high temperature alloy silk time is made into set hammer head；The high temperature alloy silk knitting forming tup is by high temperature alloy silk Winding is in cylindrical tup on wrapping machine.
- 2. dropped hammer device according to the high temperature resistant described in claim 1, it is characterised in that：Also include being fixed on the tup bearing High temperature resistant acceleration transducer, the axis of the high temperature resistant acceleration transducer and the tup diameter parallel.
- 3. dropped hammer device according to the high temperature resistant described in claim 1, it is characterised in that：Also include being fixed on installing plate upper surface Bearing block, the bearing block is flexibly connected with bearing connecting rod lower end.
- 4. dropped hammer device according to the high temperature resistant described in claim 1, it is characterised in that：The remote control line and bearing connecting rod The distance of link position and the bearing connecting rod upper end be the 1/3 of the length of bearing connecting rod.
- 5. dropped hammer device according to the high temperature resistant described in claim 1, it is characterised in that：The carrier openings position is provided with cunning Wheel apparatus；The remote control line winds the pulley gear.
- 6. dropped hammer device according to the high temperature resistant described in claim 1, it is characterised in that：Length is provided with the remote control line Scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396179.2A CN104422621B (en) | 2013-09-04 | 2013-09-04 | The high temperature resistant that dynamic response transmission characteristic is tested under a kind of thermal environment is dropped hammer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396179.2A CN104422621B (en) | 2013-09-04 | 2013-09-04 | The high temperature resistant that dynamic response transmission characteristic is tested under a kind of thermal environment is dropped hammer device |
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| Publication Number | Publication Date |
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| CN104422621A CN104422621A (en) | 2015-03-18 |
| CN104422621B true CN104422621B (en) | 2017-08-25 |
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| CN201310396179.2A Active CN104422621B (en) | 2013-09-04 | 2013-09-04 | The high temperature resistant that dynamic response transmission characteristic is tested under a kind of thermal environment is dropped hammer device |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201859048U (en) * | 2010-10-28 | 2011-06-08 | 延锋百利得（上海）汽车安全系统有限公司 | Impact tester |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1219197C (en) * | 2003-11-19 | 2005-09-14 | 哈尔滨工业大学 | Optic-mechanical-electrical combination delivering type bump test facility |
| CN100587463C (en) * | 2004-07-08 | 2010-02-03 | 日东电工株式会社 | Impact test apparatus and impact test method |
| CN2856134Y (en) * | 2006-01-16 | 2007-01-10 | 江苏省交通科学研究院有限公司 | Monkey hammer type benkelman beams deflectometer |
| CN201051062Y (en) * | 2006-03-13 | 2008-04-23 | 长春市智能仪器设备有限公司 | Dynamic impact analysis instrument |
| CN101329237B (en) * | 2008-07-31 | 2010-08-11 | 中国核动力研究设计院 | Device for measuring breaking-after lateral swelling capacity of impact test piece after irradiation |
| CN101413842B (en) * | 2008-11-28 | 2012-07-25 | 昆山市创新科技检测仪器有限公司 | Impact testing machine of treadmill |
| CN201955216U (en) * | 2010-11-19 | 2011-08-31 | 中国电力工程顾问集团中南电力设计院 | Double-shaft double-hook rotary impact decoupler |
| CN202126349U (en) * | 2011-06-23 | 2012-01-25 | 北京航天斯达新技术装备公司 | Pendulum type impact response spectra test table |
| CN103245578B (en) * | 2013-04-18 | 2016-03-02 | 长安大学 | Heat reflection type asphalt pavement impact resistance of coating proving installation and test method |
| CN203465160U (en) * | 2013-09-04 | 2014-03-05 | 北京强度环境研究所 | High-temperature-resisting drop hammer device for dynamic response transfer characteristic test under thermal environment |
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- 2013-09-04 CN CN201310396179.2A patent/CN104422621B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201859048U (en) * | 2010-10-28 | 2011-06-08 | 延锋百利得（上海）汽车安全系统有限公司 | Impact tester |
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