CN107228804A - A kind of jump bit for vertical mechanical shock test machine - Google Patents
A kind of jump bit for vertical mechanical shock test machine Download PDFInfo
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- CN107228804A CN107228804A CN201710403750.7A CN201710403750A CN107228804A CN 107228804 A CN107228804 A CN 107228804A CN 201710403750 A CN201710403750 A CN 201710403750A CN 107228804 A CN107228804 A CN 107228804A
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- jump bit
- mechanical shock
- shock test
- vertical
- test machine
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0039—Hammer or pendulum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
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- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of jump bit for vertical mechanical shock test machine, the jump bit is made up of housing, magnetisable material, bonnet；The impact portion of housing is divided into solid, and rear portion is hollow, and then hollow parts filling magnetisable material is enclosed magnetisable material in housing with bonnet.When by impact endurance test shock, powdered magnetisable material can avoid fracture, and can adjust the position of itself according to the effect of magnetic force, make magnetic force maximum.
Description
Technical field
It is specifically that one kind is surveyed for mechanical shock the present invention relates to a kind of part that Contact -impact is carried out with product testing part
Try the jump bit in equipment.
Background technology
The product of plant produced is before being delivered for use, it is necessary to which numerous performances to product are tested, to verify product
Whether use requirement is met.In these tests, the mechanical resistant impact property test of product is important one therein.Jump bit
Quality, directly determine the effect of this product mechanical shock test.Existing vertical mechanical shock test machine has following several,
Include jump bit.
The impact test test machine that Fig. 1 playbacks certainly for steel ball, including testboard 1, the test on testboard 1
Frame.Testing jig includes leading screw 3, two guide pillars 2, slide unit 4, crossbeam 5, and motor 9.Screw mandrel and guide pillar 2 are vertically installed at survey
In test stand 1, leading screw 3 is located at the center of two guide pillars 2, and leading screw 3 can be rotated, and guide pillar 2 is fixed.The top of two guide pillars 2
Portion is provided with the crossbeam 5 for fixing motor 9, and the upper end of leading screw 3 is connected with the main shaft of motor 9.Slide unit 4 passes through screw pair and silk
Thick stick 3 coordinates, and is also coordinated by prismatic pair with guide pillar 2.It is provided with slide unit 4 on horizontal support 10, support 10 and installs directed downwardly
Magnet base 6 and laser range finder 11；The bottom face of magnet base 6 and the transmitting terminal of laser range finder are located at sustained height.Testboard
On be slidably fitted with two pairs of locating pieces 7, two pairs of locating pieces surround a square region jointly；One pair of which locating piece can surveyed
Transverse movement in test stand and another pair locating piece being capable of the lengthwise movement on testboard；The end of two neighboring locating piece passes through bullet
Property band 12 is connected.Because the surface of measured object is plane and testboard is horizontal positioned, therefore steel ball being capable of remains stationary shape
State, when the magneticaction of magnet base is in steel ball, steel ball will move along the direction magnetropism seat of power and realize that automatic homing is picked up
Take.The top edge of elastic webbing is not less than the top of locating piece.Locating piece 7 be cross section be right-angled trapezium truncated rectangular pyramids, and upper bottom
It is an inclined plane that face, which is more than the side for being used to position on bottom surface, locating piece 7, and this is sideways 45~80 ° with the angle of horizontal plane.
This structure can be completely fixed to measured object 8, so as to prevent from being subjected to displacement influence test result in test process.Locating piece
It is used to set sheet rubber on the side of positioning on 7, so as to protect the edge of measured object 8 not knocked bad.Locating piece 7 is by fastening spiral shell
Bolt is fixed on testboard 1.
Fig. 2 is a kind of electrician's conduit shock machine, including bottom plate 1 and top plate 2, both sides between the bottom plate 1 and top plate 2
Column 3 is respectively equipped with, guide rod 4 is additionally provided between the bottom plate 1 and top plate 2, the guide rod 4 is located between two root posts 3, described
Lift beam 5 is provided between bottom plate 1 and top plate 2, the lift beam 5 is socketed on guide rod 4 and column 3 provided with longitudinal hole, institute
The upper end of bottom plate 1 is stated provided with connecting plate 6, the upper end both sides of connecting plate 6 are provided with test clamp 7, the guide rod 4 and are cased with jump bit 8,
The upper end of jump bit 8 is radially provided with boss, and the front and rear sides of the lift beam 5 are respectively equipped with hook 9, the hook 9
End and the boss lower edge of jump bit 8 coordinate；Described two hooks 9 are with guide rod 4 in same perpendicular；The lift beam 5
Two ends prop up column 3 through lift beam 5 provided with clamping screw I10, clamping screw I10 front end；The upper end of guide rod 4
Through top plate 2, front end of the front end of top plate 2 provided with clamping screw II11, the clamping screw II11 is propped up through top plate 2 leads
Bar 4；The guide rod 4 is prismatic, and three faces of the guide rod 4 are provided with scale, height can be seen from all directions.
It the transform gravitational energy of shock machine jump bit is institute that above two vertical mechanical shock test machine, which is all,
The kinetic energy needed, i.e. impact energy.Mechanical shock energy ratio if desired is larger, can only be carried out by two aspects：One
It is to increase the quality of jump bit, two be to increase jump bit relative to the height of product testing part, and gravitional force is increased with this.But
It is that, when the jump bit quality of mechanical shock test's machine is excessive, equipment can be caused heavy, the operation of impact test is not easy to；Work as punching
Hammer relative to product testing part height increase when, and necessarily cause the increase of mechanical shock test's machine height.But it is due to
The limitation of the factors such as laboratory place, it is impossible to improve required more impact energys by increasing height.
On the other hand, above two vertical mechanical shock test machine is needing adjustment jump bit relative to product testing part
Height when, be not easy to operation.
In view of vertical mechanical shock test machine is present at present drawbacks described above and the deficiency of jump bit, need offer one badly
Different vertical mechanical shock test machines and jump bit are planted, to meet impact energy of the mechanical shock test to testing machine of product
It is higher and higher in terms of amount, size and jump bit quality to require.
The content of the invention
In view of the jump bit of existing vertical mechanical shock test machine can not meet need of the product to mechanical shock test
Ask, in order to solve the above-mentioned technical problem, the present invention provides a kind of different jump bit for vertical mechanical shock test machine.
To achieve these goals, technical scheme is as follows：
A kind of jump bit for vertical mechanical shock test machine, vertical mechanical shock test machine by vertical arm 1,
The part such as one transverse arm 2, guide rod 3, jump bit 4, jump bit fixator 5, shock testing machine 6, product fixator 7 is constituted；It is described perpendicular
Arm 1 is round bar shape, and its two ends is respectively provided with screw thread；The transverse arm 2 is also round bar shape, and its two ends offers screwed hole, and vertical arm 1 is
Two, one end of two vertical arm 1 is screwed into two screwed holes of transverse arm 2 respectively；Two screwed holes, two are offered on shock testing machine 6
The other end of individual vertical arm 1 is screwed into two screwed holes on shock testing machine respectively；Guide rod 3 is round bar shape, is connected in transverse arm 2
Portion, be arranged in parallel with perpendicular wall 1；Guide rod 3 can be welded on the middle part of transverse arm 2, and transverse arm 2 can also be fixed on by fastener
Middle part；Need adjust jump bit 4 relative to product testing part height when, screw two vertical arm 1, raise two vertical arm 1,
Need to ensure the holding level of transverse arm 2 simultaneously；The jump bit 4 has through hole 41, and guide rod 3 passes through through hole 41, and jump bit 4 can
Slided along the vertical direction of guide rod 3；Jump bit 4 is fixed on guide rod 3 by jump bit fixator 5；The product is consolidated
Device 7 is determined on shock testing machine 6, for the fixed product testing part for doing impact test；The lower end of guide rod 3 is located at product fixator
7 top, the two is not contacted.
Further, the jump bit fixator 5 is a screw, and the side of jump bit 4 offers screwed hole, and the screw is twisted
In the screwed hole for entering jump bit 4.
Further, the jump bit 4 is made up of housing 42, magnetisable material 43, bonnet 44；The impact portion of housing is divided into reality
The heart, rear portion is hollow, hollow parts filling magnetisable material 43, is then enclosed magnetisable material 43 in housing 42 with bonnet 44.
Further, the magnetisable material 43 is rare-earth magnetic material, and the rare-earth magnetic material is in powdered.Work as jump bit
When being impacted with product testing part, jump bit and product testing part bear larger vibrations.Common magnetisable material is one whole
Body, material is more crisp, not impact resistance.In order to be broken when preventing the magnetisable material of globality from being impacted, magnetic is influenceed, the present invention is adopted
With powdered magnetisable material.When by impact endurance test shock, powdered magnetisable material can avoid fracture, and can be according to magnetic
The effect of power, adjusts the position of itself, makes magnetic force maximum.Meanwhile, in order to further improve the magnetic force of magnetisable material, magnetisable material
The preferably magnetisable material of rare earth.
Further, the shock surface that the jump bit 4 is contacted with product testing part is convex surface or plane, preferably convex surface.
When the shock surface is convex surface, because contact surface is smaller, product testing part can be rushed by bigger under identical condition
Hit effect.
Further, in order to ensure that jump bit 4 is avoided damage to when being impacted with product testing part, the jump bit 4 is by shell
The material of body 42 is metal, preferably steel or copper material, and its tensile strength is 370MPa-550MPa, and Rockwell hardness is 58-62,
The tensile strength of case material and the relation of Rockwell hardness are met：The value of tensile strength × Rockwell hardness is more than or equal to 21500 simultaneously
And less than or equal to 34000, preferably greater than or equal to 28000 and less than or equal to 32000.When the tensile strength and Rockwell of case material
When the product of hardness is less than 21500, the intensity of housing can not meet requirement during impact；When the tensile strength and Rockwell of case material
When the product of hardness is more than 34000, housing can become fragile, and also be unfavorable for the raising of its intensity, it is impossible to meet requirement during impact.
Further, vertical mechanical shock test machine also includes accelerating coil component 8, the accelerating coil component
8 include multiple accelerating coils 81.After accelerating coil is powered, electromagnetic field is produced, magnetic force is produced to having magnetic jump bit, drives
Jump bit is done work, and bigger impact energy is produced on the basis of the transform gravitational energy of jump bit is kinetic energy, meets product examination
Test demand of the part to greater impact energy.
Further, vertical mechanical shock test machine also includes computer 10, display device 11, proximity switch
12, speed detector 13.The speed detector 13 is arranged on shock testing machine 6, before detection jump bit 4 is contacted with product testing part
Speed, and by the speed data transmission to computer 10, speed data is converted into energy datum by computer 10, and should
Energy datum is transferred to display device 11, and shows.
Further, vertical mechanical shock test machine also includes power supply 9, and the power supply 9 is each accelerating coil
81st, computer 10, display device 11, proximity switch 12, speed detector 13 etc. need the part of electric energy to provide electric energy.
Further, each accelerating coil 81 is connected with an independent proximity switch 12, when jump bit 4 is passed through
During each accelerating coil 81, the proximity switch 12 being connected with each accelerating coil 81 disconnects, and power supply 9 stops to the accelerating coil
81 power supplies, to save electricity.
Compared with prior art, the height of vertical mechanical shock test machine of the invention is easy to adjust, and is utilizing
While transform gravitational energy is impact energy, done work using electromagnetic force, jump bit is obtained bigger impact energy, overcome
The deficiency of existing vertical mechanical shock test machine, meets the requirement that product is tested big energy impact.
Brief description of the drawings
Fig. 1 a kind of includes the schematic diagram of jump bit vertical mechanical shock test machine to be of the prior art；
Fig. 2 another includes the schematic diagram of jump bit vertical mechanical shock test machine to be of the prior art；
Fig. 3 is the schematic diagram of the vertical mechanical shock test machine of the present invention；
Fig. 4 for the present invention in jump bit profile；
Fig. 5 is the schematic diagram of accelerating coil component in vertical mechanical shock test machine of the invention；
Reference：1- vertical arm, 2- transverse arms, 3- guide rods, 4- jump bits, 41- through holes, 42- housings, 43- magnetisable materials,
44- bonnets, 5- jump bits fixator, 6- shock testing machines, 7- products fixator, 8- accelerating coils component, 81- accelerating coils, 9- electricity
Source, 10- computers, 11- display devices, 12- proximity switches, 13- speed detectors.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme is carried out clear, complete, in detail
Description.Obviously, described embodiment is only the part in numerous embodiments of the invention, rather than whole embodiments.
Based on protection scope of the present invention, those skilled in the art make in the case where not paying creative work to the present invention
Any deformation technical scheme, all within protection scope of the present invention.
As shown in figure 3, a kind of jump bit for vertical mechanical shock test machine, the vertical mechanical shock test
Machine is by the part group such as vertical arm 1, transverse arm 2, guide rod 3, jump bit 4, jump bit fixator 5, shock testing machine 6, a product fixator 7
Into；The vertical arm 1 is round bar shape, and its two ends is respectively provided with screw thread；The transverse arm 2 is also round bar shape, and its two ends offers screw thread
Hole, vertical arm 1 is two, and one end of two vertical arm 1 is screwed into two screwed holes of transverse arm 2 respectively；Two are offered on shock testing machine 6
Screwed hole, the other end of two vertical arm 1 is screwed into two screwed holes on shock testing machine respectively；Guide rod 3 is round bar shape, is connected to
The middle part of transverse arm 2, be arranged in parallel with perpendicular wall 1；Guide rod 3 can be welded on the middle part of transverse arm 2, can also be fixed by fastener
At the middle part of transverse arm 2；Need adjust jump bit 4 relative to product testing part height when, screw two vertical arm 1, make two
Vertical arm 1 is raised, while needing to ensure the holding level of transverse arm 2；The jump bit 4 has through hole 41, and guide rod 3 passes through through hole 41,
Jump bit 4 can be slided along the vertical direction of guide rod 3；Jump bit 4 is fixed on guide rod 3 by jump bit fixator 5；
The product fixator 7 is located on shock testing machine 6, for the fixed product testing part for doing impact test；The lower end of guide rod 3 is located at
The top of product fixator 7, the two is not contacted.
The jump bit fixator 5 is a screw, and the side of jump bit 4 offers screwed hole, and the screw is screwed into jump bit 4
Screwed hole in, jump bit 4 is fixed on to the top of guide rod 3.
The jump bit 4 is made up of housing 42, magnetisable material 43, bonnet 44；The impact portion of housing is divided into solid, and rear portion is
Hollow, then hollow parts filling magnetisable material 43 is enclosed magnetisable material 43 in housing 42 with bonnet 44.
The magnetisable material 43 is rare-earth magnetic material, and the rare-earth magnetic material is in powdered.When jump bit and product are tried
When testing part impact, jump bit and product testing part bear larger vibrations.Common magnetisable material is entirety, material compared with
It is crisp, not impact resistance.In order to be broken when preventing the magnetisable material of globality from being impacted, magnetic is influenceed, the present invention is using powdered
Magnetisable material.When by impact endurance test shock, powdered magnetisable material can avoid fracture, and can be according to the work of magnetic force
With adjusting the position of itself, make magnetic force maximum.Meanwhile, in order to further improve the magnetic force of magnetisable material, magnetisable material is preferably
The magnetisable material of rare earth.
The shock surface that the jump bit 4 is contacted with product testing part is convex surface or plane, preferably convex surface.When the impact
When face is convex surface, because contact surface is smaller, product testing part can be by bigger impact effect under identical condition.
In order to ensure that jump bit 4 is avoided damage to when being impacted with product testing part, the jump bit 4 by housing 42 material
For metal, preferably steel or copper material, its tensile strength is 370MPa-550MPa, and Rockwell hardness is 58-62, case material
Tensile strength and the relation of Rockwell hardness are met：The value of tensile strength × Rockwell hardness is more than or equal to 21500 and is less than or equal to
34000, preferably greater than or equal to 28000 and less than or equal to 32000.When the tensile strength of case material and the product of Rockwell hardness are small
When 21500, the intensity of housing can not meet requirement during impact；When the tensile strength of case material and the product of Rockwell hardness are big
When 34000, housing can become fragile, and also be unfavorable for the raising of its intensity, it is impossible to meet requirement during impact.
Vertical mechanical shock test machine also includes accelerating coil component 8, and the accelerating coil component 8 includes multiple
Accelerating coil 81.After accelerating coil is powered, electromagnetic field is produced, magnetic force is produced to having magnetic jump bit, drives jump bit to do
Work(, jump bit transform gravitational energy be kinetic energy on the basis of produce bigger impact energy, meet product testing part to compared with
The demand of large impact energy.Multiple accelerating coils 81 are annular in shape, and be connected in turn composition accelerating coil component 8.It will add
The jump bit 4 that fast coil block 8 is inserted in guide rod 3 and is fixed on guide rod 3, is fixed on transverse arm 2.
Vertical mechanical shock test machine also includes computer 10, display device 11, proximity switch 12, velocity measuring
Device 13.The speed detector 13 be arranged on shock testing machine 6 on, detection jump bit 4 contacted with product testing part before speed, and general
The speed data transmission is to computer 10, and speed data is converted into energy datum by computer 10, and the energy datum is passed
It is defeated to arrive display device 11, and show.The display device 11 can be LCD display, light-emitting diode display, CRT monitor.
Vertical mechanical shock test machine also includes power supply 9, and the power supply 9 is accelerating coil 81, computer 10, shown
Showing device 11, proximity switch 12, speed detector 13 etc. need the part of electric energy to provide electric energy.
Each accelerating coil 81 is connected with an independent proximity switch 12, when jump bit 4 accelerates through each
During coil 81, the proximity switch 12 being connected with each accelerating coil 81 disconnects, and power supply 9 stops powering to the accelerating coil 81,
To save electricity.
When carrying out mechanical shock test to product testing part, it will need to carry out mechanical punching first with product fixator 7
The product testing part for hitting experiment is fixed on shock testing machine 6；Secondly the height of two vertical arm 1 is adjusted, and it is horizontal to be in transverse arm 2
State；Then the vertical mechanical shock test machine is switched on power, each accelerating coil 81 in accelerating coil component 8 produces electricity
Magnetic field；Back-out screw jump bit 4 being fixed on guide rod 3, jump bit 4 is moved downward under gravity, and speed is got over
Come bigger；Jump bit 4 enters after accelerating coil component, and in the presence of gravity and electromagnetic force, speed is increasing, the impact
Hammer 4 is often passed through after an accelerating coil, and proximity switch 12 disconnects the connection of the accelerating coil being through and power supply；Final punching
Hammer 4 reaches shock testing machine 6, and product testing part is impacted, and completes impact test.Product testing is impacted in the jump bit 4
Before part, speed detector 13 detects the speed of jump bit 4, and by the speed data transmission to computer 10, computer 10 will
Speed data is converted into energy datum, and the energy datum is transferred into display device 11, and shows.
The height of the vertical mechanical shock test machine of the present invention is easy to adjust, and is being punching using transform gravitational energy
While hitting energy, done work using electromagnetic force, jump bit is obtained bigger impact energy, overcome existing vertical machinery punching
The deficiency of testing machine is hit, the requirement that product is tested big energy impact is met.
Claims (10)
1. a kind of jump bit for vertical mechanical shock test machine, vertical mechanical shock test machine by vertical arm (1),
The part groups such as transverse arm (2), guide rod (3), jump bit (4), jump bit fixator (5), shock testing machine (6), product fixator (7)
Into；
- the vertical arm (1) is round bar shape, and its two ends is respectively provided with screw thread；The transverse arm (2) is round bar shape, and its two ends is offered
Screwed hole, one end of two vertical arm (1) is screwed into two screwed holes of transverse arm (2) respectively；Two spiral shells are offered on shock testing machine (6)
Pit, the other end of two vertical arm (1) is screwed into two screwed holes on shock testing machine respectively；
- guide rod (3) is round bar shape, is connected to the middle part of transverse arm (2), is be arranged in parallel with perpendicular wall (1)；
- product the fixator (7) is located on shock testing machine (6), for the fixed product testing part for doing impact test；Guide rod
(3) lower end is located at the top of product fixator (7), and the two is not contacted；
- the jump bit (4) has through hole (41), and guide rod (3) passes through through hole (41), and jump bit (4) can be along guide rod
(3) vertical direction is slided；Jump bit (4) is fixed on guide rod (3) by jump bit fixator (5).
2. a kind of jump bit for vertical mechanical shock test machine according to claim 1, wherein the jump bit
Fixator (5) is a screw, and jump bit (4) side offers screwed hole, and the screw is screwed into the screwed hole of jump bit (4).
3. a kind of jump bit for vertical mechanical shock test machine according to any one of claim 1 or 2, wherein institute
Jump bit (4) is stated to be made up of housing (42), magnetisable material (43), bonnet (44)；The impact portion of housing be divided into it is solid, rear portion for sky
The heart, hollow parts filling magnetisable material (43) is then enclosed magnetisable material (43) in housing (42) with bonnet (44).
4. a kind of jump bit for vertical mechanical shock test machine according to claim 3, wherein the Magnetic Materials
Matter (43) is rare-earth magnetic material, and the rare-earth magnetic material is in powdered.
5. a kind of jump bit for vertical mechanical shock test machine according to claim any one of 1-4, wherein institute
It is convex surface or plane to state the shock surface that jump bit (4) contacts with product testing part.
6. a kind of jump bit for vertical mechanical shock test machine according to claim any one of 1-4, wherein institute
It is metal that jump bit (4), which is stated, by the material of housing (42).
7. a kind of jump bit for vertical mechanical shock test machine according to claim any one of 1-6, described perpendicular
Straight mechanical shock test's machine also includes accelerating coil component (8), and the accelerating coil component (8) includes multiple accelerating coils
(81)。
8. a kind of jump bit for vertical mechanical shock test machine according to claim any one of 1-7, described perpendicular
Straight mechanical shock test's machine also includes power supply (9), and the power supply (9) is that each accelerating coil (81) provides electric energy.
9. a kind of jump bit for vertical mechanical shock test machine according to claim any one of 1-8, described perpendicular
Straight mechanical shock test's machine also includes computer (10), display device (11), proximity switch (12), speed detector (13).
10. a kind of jump bit for vertical mechanical shock test machine according to claim any one of 1-9, described every
Individual accelerating coil (81) is connected with an independent proximity switch (12), when jump bit (4) passes through each accelerating coil (81)
When, the proximity switch (12) being connected with each accelerating coil (81) disconnects, and power supply (9) stops supplying to the accelerating coil (81)
Electricity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710403750.7A CN107228804B (en) | 2017-06-01 | 2017-06-01 | A kind of jump bit for vertical mechanical shock test machine |
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| CN201710403750.7A CN107228804B (en) | 2017-06-01 | 2017-06-01 | A kind of jump bit for vertical mechanical shock test machine |
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| CN107228804A true CN107228804A (en) | 2017-10-03 |
| CN107228804B CN107228804B (en) | 2019-09-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849749A (en) * | 2019-11-29 | 2020-02-28 | 北京理工大学 | Impact testing machine for linear motor |
| CN113008658A (en) * | 2021-02-02 | 2021-06-22 | 广州城建职业学院 | Two-wavelength decomposition self-balancing supporting device based on biaxial SHPB experiment |
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| CN110849749A (en) * | 2019-11-29 | 2020-02-28 | 北京理工大学 | Impact testing machine for linear motor |
| CN113008658A (en) * | 2021-02-02 | 2021-06-22 | 广州城建职业学院 | Two-wavelength decomposition self-balancing supporting device based on biaxial SHPB experiment |
| CN113008658B (en) * | 2021-02-02 | 2024-05-03 | 广州城建职业学院 | Two ripples decompose self-balancing strutting arrangement based on biax SHPB experiment |
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