CN106990001A - A kind of impact energy control and detection means - Google Patents

A kind of impact energy control and detection means Download PDF

Info

Publication number
CN106990001A
CN106990001A CN201710241399.6A CN201710241399A CN106990001A CN 106990001 A CN106990001 A CN 106990001A CN 201710241399 A CN201710241399 A CN 201710241399A CN 106990001 A CN106990001 A CN 106990001A
Authority
CN
China
Prior art keywords
impact
piston
cavity
blind hole
detection means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710241399.6A
Other languages
Chinese (zh)
Other versions
CN106990001B (en
Inventor
李维嘉
孙在军
吴耀中
兰秋华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huazhong University of Science and Technology
Original Assignee
Huazhong University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huazhong University of Science and Technology filed Critical Huazhong University of Science and Technology
Priority to CN201710241399.6A priority Critical patent/CN106990001B/en
Publication of CN106990001A publication Critical patent/CN106990001A/en
Application granted granted Critical
Publication of CN106990001B publication Critical patent/CN106990001B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/30Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • G01N3/307Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003Generation of the force
    • G01N2203/0042Pneumatic or hydraulic means

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention discloses a kind of control of impact energy and detection means, belong to mechano-electronic field, the device includes impact cavity components, impacting head assembly, superhigh pressure sensor, transfer block, stop valve.Impacting head assembly is arranged in impact cavity components, and the cavity between impact cavity components and impacting head assembly is pre-charged with high pressure air-liquid blending agent.By adjusting the pressure of high pressure air-liquid blending agent, the control of impact energy maximum can be achieved.Superhigh pressure sensor connects the cavity for being pre-charged with high pressure air-liquid blending agent by transfer block, the pressure for detecting the high pressure air-liquid blending agent of preliminary filling in impact cavity, realizes and acts on by the dynamic process test of the impact energy of test specimen.Stop valve connects cavity also by transfer block.Apparatus of the present invention may be repeated the control and detection of impact energy, and compact conformation is simple, service life is long.

Description

A kind of impact energy control and detection means
Technical field
The invention belongs to mechano-electronic field, more particularly, to a kind of control of impact energy and detection means, especially exist When new material, new product carry out impact test, the control and detection of impact energy can be carried out.
Background technology
In new material, the R&D process of new product, it is often necessary to carry out impact property experiment to new material, new product.It is right Impact operating mode energy be controlled and detect that means are more deficient, particularly under high-strength impact load, to new material, The impact energy that new product is subject to, which is controlled and detected, seems especially prominent.
, can if the impact working condition tests of energy-controllable when implementing impact test, can be carried out to new material, new product To significantly reduce developing risk, save R&D costs.Accordingly, it would be desirable to develop a kind of simple in construction, efficiency high, service life length, Be easily achieved impact energy it is controllable and detection impact energy control and detection means.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of control of impact energy and detection dress Put, it is intended that impacting head assembly is arranged in impact cavity components, set between impact cavity components and impacting head assembly There is the pressure size of preliminary filling high-pressure gas-liquid blending agent in cavity, control cavity, it is possible to achieve the setting of maximum impact force.To rush Component of tapping the head impacts test specimen, and test specimen can produce reaction force to impact head, the size of active force and dynamic mistake simultaneously Journey can be measured by connecting the superhigh pressure sensor of cavity, thus achieve the detection of impact energy.Apparatus of the present invention structure It is compact it is simple, energy consumption is low, reusable, be easily achieved quantification operation.
To achieve the above object, the invention provides a kind of control of impact energy and detection means, it includes impacting cavity Component, impacting head assembly, superhigh pressure sensor, switching block assembly and stop valve, wherein, the impact cavity components include blind Vestibule body, fixing nut, damping cushion block, copper sheathing and ultra-high voltage sealing ring, copper sheathing are arranged at the blind hole internal surface of blind hole cavity, led to Cross fixing nut and fix copper sheathing, ultra-high voltage sealing ring is arranged in the blind via bottom groove of blind hole cavity, sealing blind hole cavity Blind hole inwall and copper sheathing contact surface, damping cushion block are pasted onto the surface of fixing nut using damping glue, play cushioning effect.
Impacting head assembly includes impact piston, valve piston, A types O-ring, hexagon socket head cap screw, capping, the first combination sealing Circle, Type B O-ring and guide ring, impact piston outer surface set for example two the first combined seal rings and connect to seal with copper sheathing Contacting surface, impact piston medium design is through-hole structure, mitigates weight, and valve piston is arranged in impact piston intermediate throughholes, small work Plug small end is sealed using for example two A types O-rings to be used with impact piston contact surface, the big end of valve piston (namely piston head end) Type B O-ring come seal with impact piston contact surface, be oriented to using guide ring, first be provided between valve piston and impact piston Cavity, the first cavity preliminary filling Number 10 aviation hydraulic oil plays lubrication, capping is arranged at impact piston right-hand member, using interior six Corner bolt is fixed on impact piston port, and capping exposed face is sphere, this structure design of impact piston, valve piston, can be with Reduce in impact process, energy loss when impact piston is buffered.
Switching block assembly is arranged on impact cavity components upper surface, passes through the taper hole being arranged on above impact cavity and impact Cavity components formation sealing, switching block assembly includes transfer block and bolt, transfer block is fixed on into punching by for example four bolts Hit on the blind hole cavity of cavity components.
Superhigh pressure sensor is arranged on the one side of switching block assembly, using the second combined seal ring sealing super-pressure sensing The contact surface of device and transfer block.
Stop valve is arranged on also by transfer block on the blind hole cavity of impact cavity components, and stop valve passes through steel on stop valve The taper hole of pipe is connected sealing with transfer block.
In the present invention, the impacting head assembly integral installation in impact cavity components in, it is described impact cavity components with Second cavity inside of impacting head assembly formation is pre-charged with high pressure air-liquid blending agent.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it can obtain down and show Beneficial effect:
In use, the impact energy detection means of the present invention is connected with extraneous elliptical gear body phase, elliptical gear body exists In the presence of power source, the impact energy control and detection means for driving the present invention are moved together, pass through impact energy amount detection device The impacting head assembly impact test specimen put, test specimen can produce reaction force acts on impacting head assembly simultaneously, act on The size and dynamic process of power can be measured by superhigh pressure sensor, thus achieve the detection of impact energy;While this hair The pressure size of the high pressure air-liquid blending agent of preliminary filling is adjustable inside bright device, it is possible to achieve the setting of maximum impact force.
Apparatus of the present invention can carry to provide the impact that detection is born in impact process by test specimen in laboratory conditions Lotus, for verifying by the mechanical property of test specimen, can carry out repeating experiment, this detection means has the advantages that energy consumption is low, expense is small. In addition, apparatus of the present invention are simple and compact for structure, ingenious in design, reusable, energy consumption is low, safe and reliable, it is easy to accomplish automatic Detection and quantification operation.
Brief description of the drawings
Fig. 1 is a kind of impact energy control and the integrally-built graphics of detection means in the embodiment of the present invention;
Fig. 2 is the schematic cross-sectional view of device in Fig. 1;
In all of the figs, identical reference is used for representing identical element or structure, wherein:
1st, impact cavity components 2, impacting head assembly 3, superhigh pressure sensor
4th, switching block assembly 5, stop valve 6, blind hole cavity
7th, impact piston 8, valve piston 9, A type O-rings
10th, hexagon socket head cap screw 11, capping 12, fixing nut
13rd, damping cushion block 14, the first combined seal ring 15, copper sheathing
16th, Type B O-ring 17, guide ring 18, the second combined seal ring
19th, transfer block 20, bolt 21, ultra-high voltage sealing ring
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not For limiting the present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below that Not constituting conflict between this can just be mutually combined.
Impact energy controls and detection means integrally-built graphics of the Fig. 1 for the embodiment of the present invention, as seen from the figure, its Including impact cavity components 1, impacting head assembly 2, superhigh pressure sensor 3, switching block assembly 4 and stop valve 5.Wherein, impact Head assembly 2 is arranged in impact cavity components 1, and superhigh pressure sensor 3 and stop valve 5 are arranged on punching by block assembly 4 of transferring Hit on cavity components 1.Impact cavity components 1 are used as mounting body, have deep blind hole in the middle of it, impacting head assembly 2 is arranged on blind hole It is interior, it can be moved along blind hole axis, pore channels are provided with the wall of blind hole side and are connected with stop valve 5 and superhigh pressure sensor 3.Cut Only valve 5 and superhigh pressure sensor 3 are fixed on the impact outside wall surface of cavity components 1 by block assembly 4 of transferring.The impact cavity components The second cavity is formed between 1 and impacting head assembly 2.
Fig. 2 is the machine construction principle schematic cross-sectional view of device in Fig. 1, as seen from the figure, and apparatus of the present invention also include blind hole Cavity 6, impact piston 7, valve piston 8, A types O-ring 9, hexagon socket head cap screw 10, capping 11, fixing nut 12, damping cushion block 13, First combined seal ring 14, copper sheathing 15, Type B O-ring 16, guide ring 17, the second combined seal ring 18, transfer block 19, bolt 20 (specification of bolt is for example M10x50) and ultra-high voltage sealing ring 21.
Wherein, it is described impact cavity components 1 include blind hole cavity 6, fixing nut 12, damping cushion block 13, copper sheathing 15 and Ultra-high voltage sealing ring 21, wherein, the copper sheathing 15 is arranged in the blind hole of blind hole cavity 6, and fixing nut 12 is fixed on blind hole mouthful Portion, for fixing copper sheathing 15, damping cushion block 13 is arranged on the end of fixing nut 12, and, super-pressure adjacent with the one end of copper sheathing 15 Sealing ring 21 is arranged between the blind via bottom inwall of blind hole cavity 6 and the outside wall surface of copper sheathing 15, and another with the copper sheathing 15 End is adjacent.
The impacting head assembly 2 includes impact piston 7, valve piston 8, A types O-ring 9, hexagon socket head cap screw 10, capping 11, the One combined seal ring 14, Type B O-ring 16 and guide ring 17, wherein, the impact piston 7 is arranged in the copper sheathing 15, institute State the outside wall surface of impact piston 7 and be provided with the first combined seal ring 14, it is close for the outside wall surface of impact piston 7 and the internal face of copper sheathing 15 Envelope, the valve piston 8 is arranged in three rank through holes in the middle of impact piston 7, and described valve piston one end has piston head and another End has piston rod, and piston head is contained at the maximum inner diameter of three rank through holes, and piston rod is arranged on the minimum diameter of three rank through holes Sealed at place, the piston head of the valve piston 8 using three rank through-hole wall faces of Type B O-ring 16 and impact piston 7, valve piston 8 Piston rod at sealed using three rank through-hole wall faces of A types O-ring 9 and impact piston 7, be provided with and lead in piston head outside wall surface To ring 17, for the slide-and-guide between valve piston 8 and impact piston 7, the capping 11 is fixed on using hexagon socket head cap screw 10 The end of the impact piston 7 is so that capping 11 is covered in the end of impact piston 7.
Formed and filled in the first cavity, first cavity between the three ranks through-hole wall face and the outside wall surface of the valve piston 8 Being full of has aircraft fluid.Air-liquid blending agent is pre-charged with second cavity.
Gas is high pressure nitrogen in the air-liquid blending agent, and the liquid of the air-liquid blending agent is hydraulic air Oil.
In one embodiment of the invention, 11 exposed faces of the capping are sphere.Such setting this have the advantage that The rum point of impact head and test specimen is betided both near axis, reduce the profile to test specimen in process of the test It is required that.
, can be according to subject filled with high-pressure gas-liquid blending agent or liquid medium in first cavity II and the second cavity I The maximum impact force of part, the pressure of setting air-liquid blending agent reaches setting value.Valve piston 8 is arranged on logical in the middle of impact piston 7 Impact energy can be put in hole, during impact by test specimen, the second cavity I of valve piston 8 is marked with Number 10 aviation hydraulic oil.
Switching block assembly is arranged on impact cavity components upper surface, passes through the taper hole being arranged on above impact cavity and impact Cavity components formation sealing, switching block assembly includes transfer block and bolt, transfer block is fixed on into punching by for example four bolts Hit on the blind hole cavity of cavity components.
In the present invention, superhigh pressure sensor 3 is arranged on the one side of switching block assembly 4, using the second combined seal ring 18 Seal superhigh pressure sensor 3 and the contact surface (switching block assembly includes transfer block and bolt) of transfer block 19, superhigh pressure sensor 3 For the Pressure behaviour data for the blending agent for measuring impact cavity components 1 cavity II.Stop valve 5 is set also by transfer block 19 On the blind hole cavity 6 of impact cavity components 1, stop valve 5 is connected sealing by the taper hole of steel pipe on stop valve with transfer block 19.
The course of work of apparatus of the present invention comprises the following steps:
Pre-set the stage:According to the setting value of the Maximal shock load needed by test specimen, to the impact cavity of cavity components 1 Preliminary filling high pressure nitrogen and Number 10 aviation hydraulic oil medium are carried out inside II, air-liquid blending agent is reached required pressure, and protect Hold closed.
Adjusting stage:Impact energy control and detection means are fixed with one with extraneous movable body, adjusted by test specimen Heart position, makes by test specimen center and the central shaft of impacting head assembly 2 concentrically or coaxially.Wherein, impacting head assembly 2 is arranged on by test specimen Positive other side upwards, to guarantee to be struck by impacting head assembly.
Working stage:Start extraneous movable body, make impact energy control and detection means with movable body high-speed motion, Impacting head assembly 2 impact its positive other side it is upward by test specimen, while height that can be in compression shock cavity components 1 in first cavity II Nitrogen and for example Number 10 aviation hydraulic oil medium are pressed, the superhigh pressure sensor 3 being arranged on switching block assembly 4, which is used to detect, to be impacted Pressure dynamic data in first cavity II, by processing pressure dynamic data, draws the data of impact energy in cavity components 1. End (namely piston head end) is while by the pressure of high pressure air-liquid blending agent greatly for valve piston 8, by the pressurization of valve piston 8, It is transmitted to by the tailpiece of the piston rod and capping 11 of valve piston 8 by test specimen, such design can reduce the energy loss of impact process.
Apparatus of the present invention are by adjusting in impact cavity components 1 in first cavity II filled with high pressure air-liquid blending agent Pressure, can reach the effect of detection different impact.
In the present invention, impact energy detection means is connected with extraneous elliptical gear body (namely movable body), elliptical gear Body is in the presence of power source, by the impact head impact test specimen of impact energy detection means, and test specimen can be produced simultaneously The raw active force for reacting on impact head, the size and dynamic process of active force can be measured by superhigh pressure sensor, thus Realize the detection of impact energy;Simultaneously inside apparatus of the present invention the high-pressure gas-liquid blending agent of preliminary filling pressure size, can be with Realize the setting of maximum impact force.Apparatus of the present invention compact conformation is simple, energy consumption is low, it is reusable, be easily achieved quantification Operation.In addition, the security of apparatus of the present invention is good, repeatable experiment, developing risk can be reduced, R&D costs are saved.
Apparatus of the present invention can supporting test system, the dynamic data that superhigh pressure sensor is transmitted can be recorded in real time, complete Test, the data analysis storage of impact energy in impact process.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., it all should include Within protection scope of the present invention.

Claims (7)

1. a kind of impact energy control and detection means, it is characterised in that it includes impact cavity components (1), impacting head assembly (2), superhigh pressure sensor (3), switching block assembly (4) and stop valve (5), wherein,
Blind hole is provided with the impact cavity components (1), impacting head assembly (2) is arranged in blind hole, the impact cavity group The second cavity is formed between part (1) and impacting head assembly (2), impacting head assembly (2) may be moved along blind hole axis, blind hole side Pore channels are provided with wall so that the second cavity is connected with stop valve (5) and superhigh pressure sensor (3);Stop valve (5) and super High pressure sensor (3) is fixed on impact cavity components (1) outside wall surface by block assembly of transferring (4).
2. a kind of impact energy control as claimed in claim 1 and detection means, it is characterised in that the impact cavity components (1) blind hole cavity (6), fixing nut (12), damping cushion block (13), copper sheathing (15) and ultra-high voltage sealing ring (21) are included, its In,
The copper sheathing (15) is arranged in the blind hole of blind hole cavity (6), and fixing nut (12) is fixed on blind hole oral area, for fixing Copper sheathing (15), damping cushion block (13) is arranged on fixing nut (12) end, and adjacent with copper sheathing (15) one end, ultra-high voltage sealing ring (21) it is arranged between the blind via bottom inwall of blind hole cavity (6) and copper sheathing (15) outside wall surface, and it is another with the copper sheathing (15) One end is adjacent.
3. a kind of impact energy control as claimed in claim 2 and detection means, it is characterised in that the impacting head assembly (2) impact piston (7), valve piston (8), A types O-ring (9), hexagon socket head cap screw (10), capping (11), the first combination sealing are included (14), Type B O-ring (16) and guide ring (17) are enclosed, wherein,
The impact piston (7) is arranged in the copper sheathing (15), and it is close that impact piston (7) outside wall surface is provided with the first combination Seal (14), is sealed for impact piston (7) outside wall surface and copper sheathing (15) internal face,
The valve piston (8) is arranged in three rank through holes in the middle of impact piston (7), described valve piston one end have piston head and The other end has piston rod, and piston head is contained at the maximum inner diameter of three rank through holes, and piston rod is arranged on the minimum of three rank through holes Inner radius,
Sealed at the piston head of the valve piston (8) using three rank through-hole wall faces of Type B O-ring (16) and impact piston (7), Sealed at the piston rod of valve piston (8) using three rank through-hole wall faces of A types O-ring (9) and impact piston (7), in piston head Outside wall surface is provided with guide ring (17), for the slide-and-guide between valve piston (8) and impact piston (7),
The capping (11) is fixed on so that capping (11) lid by the end of the impact piston (7) using hexagon socket head cap screw (10) Close in the impact piston (7) end.
4. a kind of impact energy control as claimed in claim 3 and detection means, it is characterised in that the three ranks through-hole wall Formed to fill in the first cavity, first cavity between face and the valve piston (8) outside wall surface and have aircraft fluid.
5. a kind of impact energy control as claimed in claim 4 and detection means, it is characterised in that pre- in second cavity Filled with air-liquid blending agent.
6. a kind of impact energy control as claimed in claim 5 and detection means, it is characterised in that the air-liquid mixing is situated between Gas is high pressure nitrogen in matter, and the liquid of the air-liquid blending agent is aircraft fluid.
7. a kind of impact energy control as claimed in claim 6 and detection means, it is characterised in that the capping (11) is exposed Face is sphere.
CN201710241399.6A 2017-04-13 2017-04-13 A kind of control of impact energy and detection device Active CN106990001B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710241399.6A CN106990001B (en) 2017-04-13 2017-04-13 A kind of control of impact energy and detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710241399.6A CN106990001B (en) 2017-04-13 2017-04-13 A kind of control of impact energy and detection device

Publications (2)

Publication Number Publication Date
CN106990001A true CN106990001A (en) 2017-07-28
CN106990001B CN106990001B (en) 2019-05-03

Family

ID=59415982

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710241399.6A Active CN106990001B (en) 2017-04-13 2017-04-13 A kind of control of impact energy and detection device

Country Status (1)

Country Link
CN (1) CN106990001B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108120628A (en) * 2018-01-25 2018-06-05 中国商用飞机有限责任公司北京民用飞机技术研究中心 A kind of impact injury fabricated device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000249620A (en) * 1999-02-26 2000-09-14 Ishikawajima Harima Heavy Ind Co Ltd Impact testing machine
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
CN201096688Y (en) * 2007-10-17 2008-08-06 王志云 Dual-diameter, dual-direction and dual speed oil jar pressure tester
CN201163233Y (en) * 2008-03-03 2008-12-10 苏州试验仪器总厂 Independent oil cylinder type gas-liquid supercharging contracting brake anti-shake impact testing bench
DE102007058702A1 (en) * 2007-03-01 2009-06-10 Ortwin Prof. Dr.-Ing. Hahn Damping element for a test device
CN201673095U (en) * 2010-04-23 2010-12-15 安徽理工大学 Bullet fired cylinder for Hopkinson pressure bar
CN106525373A (en) * 2016-11-28 2017-03-22 西安百纳电子科技有限公司 Horizontal impact response spectrometry apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000249620A (en) * 1999-02-26 2000-09-14 Ishikawajima Harima Heavy Ind Co Ltd Impact testing machine
JP4029514B2 (en) * 1999-02-26 2008-01-09 株式会社Ihi Impact test equipment
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
DE102007058702A1 (en) * 2007-03-01 2009-06-10 Ortwin Prof. Dr.-Ing. Hahn Damping element for a test device
CN201096688Y (en) * 2007-10-17 2008-08-06 王志云 Dual-diameter, dual-direction and dual speed oil jar pressure tester
CN201163233Y (en) * 2008-03-03 2008-12-10 苏州试验仪器总厂 Independent oil cylinder type gas-liquid supercharging contracting brake anti-shake impact testing bench
CN201673095U (en) * 2010-04-23 2010-12-15 安徽理工大学 Bullet fired cylinder for Hopkinson pressure bar
CN106525373A (en) * 2016-11-28 2017-03-22 西安百纳电子科技有限公司 Horizontal impact response spectrometry apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
YAOZHONG WU ET AL.: ""Fatigue life prediction for boom structure of concrete pump truck"", 《ENGINEERING FAILURE ANALYSIS》 *
徐鲲 等: ""舰炮后坐力试验装置强冲击特性仿真分析"", 《机械与电子》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108120628A (en) * 2018-01-25 2018-06-05 中国商用飞机有限责任公司北京民用飞机技术研究中心 A kind of impact injury fabricated device

Also Published As

Publication number Publication date
CN106990001B (en) 2019-05-03

Similar Documents

Publication Publication Date Title
CN110595909A (en) True triaxial test system and method for simulating influence of different temperatures of deep rock mass
CN104198306B (en) A kind of dynamic drawing experimental provision impacted under active confined pressure and experimental technique
US11879514B2 (en) Composite impact resistance apparatus and applications thereof
CN104198165A (en) Shock absorber durability testing device
CN106990001A (en) A kind of impact energy control and detection means
CN102507169A (en) Novel anchor chain tensile testing machine
CN207335994U (en) Pressure-bearing end cap flange dynamic sealing performance detection device
CN104374559A (en) Downhole tool dynamic property test detecting device
CN106092488A (en) A kind of automotive seat shock table
CN110441157B (en) Rock confining pressure loading device for laser drilling experiment
CN208921874U (en) A kind of Pneumatic immpacting focus
CN209126739U (en) Coupler and draft gear
CN105242027B (en) A kind of true triaxial core holding unit
CN202330175U (en) Reciprocating oil seal pressure-resistant detection device
CN201334015Y (en) Railway diesel oil tank car with 30t axle load
RU2156899C1 (en) Flexible damper
CN107630864A (en) A kind of cylinder seal longevity test device
CN208328678U (en) Split intelligent ball-type Dynamometric support system device
CN104458452A (en) Compression and relaxation testing device
RU2216665C2 (en) Hydropneumatic damper
CN110058295A (en) A kind of Pneumatic immpacting focus
CN204269488U (en) Compression stress relaxation test unit
CN208564479U (en) A kind of down-hole vibration source generator
CN208651320U (en) Drop hammer deflection meter bilayer oil cylinder lifting device
CN218670368U (en) Damping device and vertical impact test bench

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant