CN108645696A - A kind of separate type split-Hopkinson torsional bar accumulation of energy and release device and operating method - Google Patents
A kind of separate type split-Hopkinson torsional bar accumulation of energy and release device and operating method Download PDFInfo
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- CN108645696A CN108645696A CN201810442947.6A CN201810442947A CN108645696A CN 108645696 A CN108645696 A CN 108645696A CN 201810442947 A CN201810442947 A CN 201810442947A CN 108645696 A CN108645696 A CN 108645696A
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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
- G01N3/02—Details
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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
- G01N3/02—Details
- G01N3/04—Chucks
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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
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
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- 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
- G01N2203/0014—Type of force applied
- G01N2203/0021—Torsional
Abstract
The invention discloses a kind of separate type split-Hopkinson torsional bar accumulation of energys and release device and operating method, and it includes Hopkinson incident bar, clamping device, relieving mechanism and adjustment mechanism that impact torsion accumulation of energy and release, the device can be realized with simple mechanical structure；Operating method provided by the invention can step up Hopkinson incident bar by clamping and adjustment mechanism, realize the storage to torque, and the release device for passing through design, it realizes and abrupt release is carried out to the amount of torsional energy of storage, to simulate impact loading, impact experiment simulated conditions are provided；Meanwhile the shock loading loaded is determined by the torsion number of turns, convenient for control；It is reusable suitable for different loading devices, it is not necessarily to consumptive material；The configuration of the present invention is simple, relative inexpensiveness, control is easy, easy to operate.
Description
Technical field
The invention belongs to impact torsion test technical field, and in particular to a kind of separate type split-Hopkinson torsional bar accumulation of energy with release
Put device and operating method.
Background technology
Torsion test is the basic experiment of Knowing material shear behavior, is carried out generally on torsion testing machine, when experiment
Sample both ends apply torque, at this moment will generate torsion angle between two sections of sample, when torsion angle reaches a certain level, test specimen
It will be twisted off, the fracture apperance of torsional specimen can reflect material property and stressing conditions.However, under some operating modes, material
It can be acted on by high speed impact torsional load, such as engine clutch combines the stand under load and vehicle brake of moment axle
When countershaft used load etc..When material is acted on by high speed torsional load, the shear behavior of material can be different from accurate quiet
State reverses situation, therefore, it is necessary to material into Mobile state torsion test, to the shear resistance under Knowing material dynamic condition
Energy.Separate type split-Hopkinson torsional bar be exactly it is a kind of measurement MATERIALS ' DYNAMIC under the conditions of shear behavior experimental provision.The experimental provision
Test specimen is positioned between incident bar and transmission bar, and incident bar is generally divided into two, and is detached both ends by clamping device, far
One end from test specimen is known as pretwist end, is loaded to pretwist end by applied moment, to which amount of torsional energy be stored, when
When clamping device discharges suddenly, the amount of torsional energy of the storage at pretwist end can be transmitted to test specimen in the form of wave by the other end rapidly
On, to realize that the dynamic to test specimen is reversed.Traditional separate type split-Hopkinson torsional bar is generally using an intermediate casting slotted
Iron stud to generate clamping device application chucking power at fluting by cast iron stud when chucking power is reached a certain level
Fracture loads to simulate moment, but there are some defects for this method.Firstly, since cast iron stud can not in the fracture of fault location
Control, so that being difficult to ensure the repeatability of chucking power in experiment in an experiment；And in the loading procedure of experiment, casting
If iron stud insufficient strength is easy to happen unexpected fracture, the failure of an experiment will result directly in；In an experiment, ironcasting often can only
Using primary so that experimental cost improves, and experimental implementation process complicates.These restrict separate type Hopkinson using defect
The development and application of torsion bar.
Though being provided with hydraulic locking formula device in the prior art, solve the problems, such as consumptive material and assay reproducibility problem,
It is compared to traditional mechanical structure, there is also distinct disadvantages：
1, hydraulic system General reactions are slower, when the clamping device as high velocity experiments equipment, nothing during release
Method realizes abrupt release, thus can seriously affect experimental precision.
2, hydraulic locking apparatus needs a huge feed system, thus expensive, and maintenance is difficult.
Invention content
It is an object of the invention to mitigate above-mentioned technical contradiction to a certain extent, a kind of separate type Hopkinson is provided
Torsion bar accumulation of energy and release device and operating method, solve the problems, such as that existing separator exists.
The present invention adopts the following technical scheme that realize：
A kind of separate type split-Hopkinson torsional bar accumulation of energy and release device, including Hopkinson incident bar, clamping device, release
Mechanism and adjustment mechanism；Wherein,
Clamping device includes pedestal, gland, axis pin and jointing, and one end of gland is hinged with pedestal, and the other end passes through
Axis pin is connect with jointing, and gland offers through-hole with jointing at the cooperation of both ends, and the two is connected simultaneously by axis pin
Form the revolute pair that can be relatively rotated around axis pin；
Relieving mechanism includes two identical steel balls, sleeve, special-shaped release lever, magnet and release handle, special-shaped release lever
In sleeve, the through-hole that release handle is opened by sleeve side is connect with special-shaped release lever；Magnet is discharged embedded in abnormity
The top of bar；Two steel balls are symmetrically mounted in the circular hole opened up on sleeve；
Adjustment mechanism includes gasket, spring, nut and regulation stud, and nut and regulation stud are connected through a screw thread；It adjusts
Stud passes through the hole of base bottom, and is connect with sleeve bottom by the screw thread on regulation stud top with relieving mechanism, spacer
Piece is arranged among stud and sleeve, spring mounted between pedestal and gasket, relieving mechanism and clamping device by steel ball into
The aperture entered on jointing realizes connection；In use, adjustment mechanism makes regulation stud move downward by torque nut, from
And draw and release mechanism, drive clamping device realization that Hopkinson incident bar is clamped between pedestal and gland.
The present invention, which further improves, to be, clamping device further includes hinge, and pedestal and gland are connected through the hinge.
The present invention, which further improves, to be, clamping device further includes spring leaf, and spring leaf is fixed on pedestal, upper surface
It is contacted with gland.
The present invention, which further improves, to be, clamping device pedestal and gland contact surface are respectively provided with a matched semicircle
Connected in star, Hopkinson incident bar are clamped at the semi-circular recesses.
The present invention, which further improves, to be, in use, relieving mechanism is turned by controlling special-shaped release lever in sleeve
Dynamic position, to realize that changing the restrained condition of steel ball realizes the function of combination and release.
The present invention, which further improves, to be, is arc-shaped at the top of relieving mechanism sleeve, side is provided in axial cross section
It is in 90 °, the through-hole for accessing release handle；Sleeve bottom is machined with the screw thread for connecting adjustment mechanism.
The present invention, which further improves, to be, there are two symmetrical rectangular section is recessed to be opened in top-side for special-shaped release lever
Slot and the round bar that threaded hole is drilled in bottom sidewall, wherein the rectangular section groove of top-side are for adjusting steel-ball limiting shape
The rectangular channel of state is provided with the threaded hole for Connection Release handle in bottom end.
A kind of operating method of the accumulation of energy of separate type split-Hopkinson torsional bar and release device, includes the following steps：
Whether normal step S1 first checks for structure；
Step S2 connects adjustment mechanism and relieving mechanism；
Rotating nut makes it rotate to the bottom end of regulation stud, then adjusts the rotation angle of gland and jointing, makes
The hole for obtaining sleeve upper end is aligned with the hole site of jointing, is then rotated release handle and is driven special-shaped release lever rotation, change
The contact surface of steel ball and special-shaped release lever so that steel ball stretches out, and being formed between jointing and sleeve can be around steel ball common axis
The revolute pair that line mutually rotates；
Step S3 is clamped；
Rotating nut moves downward to draw regulation stud, sleeve, jointing and gland, to realize to Hope
The gloomy incident bar of gold is compressed, while spring will be compressed；
Step S4, accumulation of energy；
After completing above-mentioned steps, torsion load is carried out to Hopkinson incident bar one end, amount of torsional energy will be stored at this time
Between bite and loading end；
Step S5, release；
After the completion of to be loaded, rotation release handle drives special-shaped release lever rotation, change steel ball to be connect with special-shaped release lever
Contacting surface pushes up gland and jointing so that steel ball is returned in the case where extruding is used in sleeve, is stepped up to completion
Moment relaxes, and the energy of Hopkinson incident bar storage will be quickly released, and be loaded into far from Hopkinson incident bar loading end
On the test specimen of connection, to realize the simulation of impact torsion load.
The present invention, which further improves, to be, in step S1, checks whether ball is lost and whether release handle rotates just
Often.
The present invention, which further improves, to be, in step S3, is completed to mark nut location after clamping, is facilitated repetition real
It tests.
The present invention has following beneficial technique effect：
The present invention provides a kind of separate type split-Hopkinson torsional bar accumulation of energy and release device, including Hopkinson incident bar,
Clamping device, relieving mechanism and adjustment mechanism.The method of clamping in impact torsion accumulation of energy stage is realized with simple mechanical structure.
And present apparatus practicability is stronger, and chucking power can be controlled by adjustment mechanism, ensures that the repeatability of experiment, mechanical structure composition are released
The instantaneity that device ensure that release is put, and is not necessarily to consumptive material.It, can be to be realized with a low cost accurately for other devices
Impulsive load fully meets experimental precision requirement.In addition to this, the present invention also has the characteristics that easy to operate.
Further, clamping device pedestal and gland are equipped with semicolumn groove, and groove section semi-circular shape is slightly less than
180 °, when pedestal upper surface is parallel with gland lower surface, still there is certain distance between the two.The peace of spring leaf is not only given in this way
Space left is filled, when torsion bar is clamped in groove, after gland is bonded with torsion bar surface, moreover it is possible to further compress, energy
Enough meet different clamping force demands, prevent to slip, reveals energy.Clamping device is made of pure mechanic structure, favorably
In ensureing that conditional stability is clamped in the course of work.
Further, the spring leaf between clamping device pedestal and gland can fill energy in clamping process by compression, release
It is sprung back during putting so that rate of release is faster.
Further, be arranged to the intermediate hole for placing steel ball to tilt a certain angle upwards slightly, can make steel ball conducted oneself with dignity and
It stays in hole, prevents from rolling out；And sleeve wall thickness is slightly smaller than the diameter of steel ball so that steel ball stress surface is not up to or surpasses
Cross steel ball center, it is therefore prevented that occur that self-locking cannot discharge or steel ball flies out in load, and make work of the contact surface to steel ball
Increased with resultant force, and improves rate of release towards hole direction forever.The mating surface of special-shaped release lever top and steel ball is cut
Special shape is processed into face, and operation principle is similar to cam mechanism.In rotation process, steel ball can be made to realize and release and roll into,
To realize combination and release.
Further, release special-shaped bar top is embedded in magnet, and the magnetic force of generation can ensure after discharge, and steel ball will not be because
It flies out sleeve for rigid shock.
Further, it is threaded hole in special-shaped release lever bottom end, release lever is opened up from the certain position of sleeve side
Through hole being threaded into end in the screw hole of special-shaped release lever, may make whole process operation it is more effortless.
Further, the operating method of a kind of accumulation of energy of separate type split-Hopkinson torsional bar and release device provided by the invention.It is first
Whether the whether normal such as steel ball of first inspection structure is lost, and whether release handle rotates normal etc..If each system normally if can open
Begin to operate.Then rotating nut makes it rotate to the bottom end of regulation stud, then adjusts the rotation angle of gland and jointing
Degree so that the hole of sleeve upper end is aligned with the hole site of jointing, is then rotated release handle and is driven special-shaped release lever rotation,
Change the contact surface of steel ball and special-shaped release lever so that steel ball stretches out, and revolute pair is formed between jointing and sleeve.Then
Rotating nut moves downward to draw regulation stud, sleeve, jointing, gland, is compressed to torsion bar to realize,
Spring leaf and spring will be compressed simultaneously, mark the rotational angle of nut, to repeat to test.Finally, torsion bar one end is carried out
Torsion load, amount of torsional energy will be stored between bite and loading end at this time.After the completion of to be loaded, release handle band is rotated
Dynamic abnormity release lever rotation, changes the contact surface of steel ball and special-shaped release lever, under the action of spring leaf, gland and connects
Head will be pushed upwardly so that steel ball is returned in the case where extruding is used in sleeve, and to complete the moment stepped up relaxation, torsion bar stores
Energy will be quickly released, be loaded on the test specimen far from the connection of torsion bar loading end, to realize the mould of impact torsion load
It is quasi-.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the installation diagram of clamping device gland part；
Fig. 3 is the installation diagram of clamping device and relieving mechanism；
Fig. 4 is the installation diagram of relieving mechanism and adjustment mechanism；
Fig. 5 is the part drawing of special-shaped release lever in adjustment mechanism；
Fig. 6 is the front view of adjustment mechanism middle sleeve；
Fig. 7 is the vertical view of adjustment mechanism middle sleeve；
Fig. 8 is the part drawing of regulation stud in adjustment mechanism.
In figure：1, Hopkinson incident bar, 2, pedestal, 3, hinge, 4, gland, 5, spring leaf, 6, axis pin, 7, connect
Head, 8, steel ball, 9, sleeve, 10, special-shaped release lever, 11, magnet, 12, release handle, 13, gasket, 14, spring, 15, nut,
16, regulation stud.
Specific implementation mode
The present invention is described in more detail below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of separate type split-Hopkinson torsional bar accumulation of energy provided by the invention and release device, overall work dress
It sets and is made of completely mechanical structured member, including Hopkinson incident bar 1, clamping device, relieving mechanism and adjustment mechanism.
Clamping device is used for being clamped Hopkinson incident bar, and composition includes pedestal 2, hinge 3, gland 4, spring leaf 5, axis pin
6 and jointing 7, wherein threaded hole is arranged at 1 bottom of pedestal, is used for joint test platform, realizes the fixation to itself.Pedestal 1 and pressure
Lid 4 is connected by hinge 3, and gland 4 is connect with jointing 7 by axis pin 6, spring leaf 5 fix on the base 2, upper surface with
Gland 4 contacts, so that gripping gland is rapidly separated after being discharged for clamping device, and ensures that relieving mechanism and adjustment mechanism are pressing from both sides
It will not be respectively provided with a semicircle to pedestal 2, clamping device pedestal 2 and 4 contact surface of gland by falling impacts suddenly after holding force unloading
Groove, Hopkinson incident bar 1 are clamped in groove
As shown in Fig. 2, gland 4 is provided with through-hole with jointing 7 at the cooperation of both ends in clamping device, the two passes through pin
The connection of axis 6 forms the revolute pair that can be relatively rotated around axis pin；
As shown in Figure 3 and Figure 4, relieving mechanism is connected to clamping device and adjustment mechanism and can freely be tied with clamping device
It closes and separation, the abrupt release that guarantee clamping device does not disconnect in loading procedure with chucking power in experimentation, composition includes
Two identical steel balls 8, sleeve 9, special-shaped release lever 10, magnet 11 and release handle 12, wherein special-shaped release lever 10 is mounted on
In sleeve 9, the through-hole that release handle 12 is opened by 9 side of sleeve is connect with special-shaped release lever 10, by controlling release handle
12 controllable special-shaped release levers 10 are freely rotated in sleeve.Circular magnet 11 is embedded in the top of special-shaped release lever 10.Steel ball 8 is pacified
In the circular hole on sleeve 9, the groove part surface engagement with special-shaped release lever 10.
Clamping device and relieving mechanism realize connection by the aperture that steel ball 8 enters on jointing 7, are discharged by rotating
Handle 12 makes the contact with each other contact position of part of 10 end of special-shaped release lever and steel ball 8 change, so as to adjust steel ball 8 along set
The stroke of 9 radial directions of cylinder, realized by steel ball 8 realized between adjustment mechanism sleeve 9 and clamping device jointing 7 connection and
Separation, to control the combination and separation of clamping device and relieving mechanism.
Adjustment mechanism Connection Release mechanism, for realizing the load and control of chucking power.Its composition includes spring 14, nut
15 and regulation stud 16, nut 15 and regulation stud 16 be connected through a screw thread, the regulation stud 16 of adjustment mechanism passes through 2 bottom of pedestal
The hole in portion, and connect with 9 bottom of sleeve by the screw thread on 16 top of regulation stud with relieving mechanism, and in regulation stud 16 and set
Gasket 13 is installed, spring 14 is mounted between pedestal 2 and gasket 13 among cylinder 9.In the state that structure integrally keeps connection,
Pass through torque nut 15 so that regulation stud 16 moves downward, and draws relieving mechanism, and it is downward to be further driven to clamping device
The clamping to Hopkinson incident bar 1 is realized in movement.
As shown in figure 5, the top of special-shaped release lever 10 opens that there are two symmetrical rectangular section grooves in adjustment mechanism, and
The round bar of threaded hole is drilled in bottom sidewall.Wherein top rectangular section grooves are used to adjust the rectangular channel that steel ball 8 limits state,
It is provided with the threaded hole for Connection Release handle 12 in bottom end, and top is provided with the slot of embedded magnet 11, ensures steel ball not
It can be popped up during release.
As shown in Figure 6 and Figure 7,9 top of adjustment mechanism middle sleeve is arc-shaped, dry to prevent from occurring in rotation process
It relates to；9 side of sleeve is provided in 90 ° in axial cross section, the through-hole for accessing release handle 12；The processing of 9 bottom of sleeve is useful
In the screw thread of connection adjustment mechanism regulation stud 16.
As shown in figure 8, for the design of part of regulation stud 16 in adjustment mechanism, by the screw thread of front and back two parts various outer diameter
Composition, front end minor thread coordinate with sleeve 9, and rear end screw thread coordinates with nut 15, is screwed into depth by nut to complete adjustment machine
The stroke of structure, and then control clamping force size.
The operating method of a kind of accumulation of energy of separate type split-Hopkinson torsional bar and release device provided by the invention, including following step
Suddenly：
Whether normal step S1 first checks for structure：
If whether steel ball 8 is lost, whether release handle 12 rotates normal etc..If each system normally if can start to operate.
Step S2 connects adjustment mechanism and relieving mechanism：
Rotating nut 15 makes it rotate to the bottom end of regulation stud 16, then adjusts the rotation of gland 4 and jointing 7
Angle so that the hole of 9 upper end of sleeve is aligned with the hole site of jointing, is then rotated release handle 12 and is driven special-shaped release lever
10 rotations change the contact surface of steel ball 8 and special-shaped release lever 10 so that steel ball 8 stretches out, the shape between jointing 7 and sleeve 9
At can be around the revolute pair that steel ball common axis mutually rotates.
Step S3 is clamped：
Rotating nut 15 moves downward to draw regulation stud 16, sleeve 9, jointing 7, gland 4, to realize
Hopkinson incident bar 1 is compressed, while spring leaf 5 and spring 14 will be compressed.It completes to mark nut position after clamping
It sets, repetition is facilitated to test.
Step S4, accumulation of energy：
After completing above-mentioned steps, torsion load is carried out to 1 one end of Hopkinson incident bar, amount of torsional energy will be stored at this time
Between bite and loading end.
Step S5, release：
After the completion of to be loaded, rotation release handle 12 drives special-shaped release lever 10 to rotate, and changes steel ball 8 and special-shaped release lever
10 contact surface, under the action of spring leaf 5, gland 4 and jointing 7 will be pushed upwardly so that steel ball 8 is squeezing institute
It is returned under in sleeve 9, to complete the moment stepped up relaxation, the energy that Hopkinson incident bar 1 stores will be quickly released,
It is loaded on the test specimen far from the 1 loading end connection of Hopkinson incident bar, to realize the simulation of impact torsion load.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is every according to
According to the technical spirit of the present invention to any simple modification, equivalent variations made by above example, the protection of the present invention is each fallen within
Within the scope of.
Claims (10)
1. a kind of separate type split-Hopkinson torsional bar accumulation of energy and release device, which is characterized in that including Hopkinson incident bar (1),
Clamping device, relieving mechanism and adjustment mechanism；Wherein,
Clamping device includes pedestal (2), gland (4), axis pin (6) and jointing (7), and one end and the pedestal (1) of gland (4) are cut with scissors
It connects, the other end is connect by axis pin (6) with jointing (7), and gland (4) is opened up with jointing (7) at the cooperation of both ends
There are through-hole, the two to be connected by axis pin (6) and form the revolute pair that can be relatively rotated around axis pin (6)；
Relieving mechanism includes two identical steel balls (8), sleeve (9), special-shaped release lever (10), magnet (11) and release handle
(12), special-shaped release lever (10) is mounted in sleeve (9), the through-hole that release handle (12) is opened by sleeve (9) side with it is different
Shape release lever (10) connects；Magnet (11) is embedded in the top of special-shaped release lever (10)；Two steel balls (8) are symmetrically mounted on sleeve
(9) in the circular hole opened up on；
Adjustment mechanism includes gasket (13), spring (14), nut (15) and regulation stud (16), nut (15) and regulation stud
(16) it is connected through a screw thread；Regulation stud (16) passes through the hole of pedestal (2) bottom, and passes through regulation stud (16) with relieving mechanism
The screw thread on top is connect with sleeve (9) bottom, and adjusting gasket (13) setting is intermediate in stud (16) and sleeve (9), spring (14)
Between pedestal (2) and gasket (13), relieving mechanism and clamping device are entered by steel ball (8) on jointing (7)
Aperture realizes connection；In use, adjustment mechanism makes regulation stud (16) move downward by torque nut (15), to draw
Relieving mechanism drives clamping device realization that Hopkinson incident bar (1) is clamped between pedestal (2) and gland (4).
2. a kind of separate type split-Hopkinson torsional bar accumulation of energy according to claim 1 and release device, which is characterized in that clamping
Mechanism further includes hinge (3), and pedestal (1) and gland (4) are connected by hinge (3).
3. a kind of separate type split-Hopkinson torsional bar accumulation of energy according to claim 1 and release device, which is characterized in that clamping
Mechanism further includes spring leaf (5), and spring leaf (5) is fixed on pedestal (2), and upper surface is contacted with gland (4).
4. a kind of separate type split-Hopkinson torsional bar accumulation of energy according to claim 1 and release device, which is characterized in that clamping
Mechanism base (2) and gland (4) contact surface are respectively provided with a matched semi-circular recesses, Hopkinson incident bar (1) clamping
At the semi-circular recesses.
5. a kind of separate type split-Hopkinson torsional bar accumulation of energy according to claim 1 and release device, which is characterized in that use
When, relieving mechanism is by controlling turned position of the special-shaped release lever (10) in sleeve (9), to realize the pact for changing steel ball (8)
Pencil state realizes the function of combination and release.
6. a kind of separate type split-Hopkinson torsional bar accumulation of energy according to claim 5 and release device, which is characterized in that release
It is arc-shaped at the top of mechanism sleeve (9), side is provided in 90 ° in axial cross section, the through-hole for accessing release handle (12)；
Sleeve (9) bottom is machined with the screw thread for connecting adjustment mechanism.
7. a kind of separate type split-Hopkinson torsional bar accumulation of energy according to claim 6 and release device, which is characterized in that abnormity
Release lever (10) is the circle that threaded hole is opened there are two symmetrical rectangular section groove and be drilled in bottom sidewall in top-side
Bar, wherein the rectangular section groove of top-side are used to adjust the rectangular channel of steel ball (8) limit state, are provided in bottom end for connecting
Connect the threaded hole of release handle (12).
8. the operation side of a kind of separate type the split-Hopkinson torsional bar accumulation of energy and release device described in any one of claim 1 to 7
Method, which is characterized in that include the following steps：
Whether normal step S1 first checks for structure；
Step S2 connects adjustment mechanism and relieving mechanism；
Rotating nut (15), makes it rotate to the bottom end of regulation stud (16), then adjusts gland (4) and jointing (7)
Rotation angle so that the hole of sleeve (9) upper end is aligned with the hole site of jointing, and it is different then to rotate release handle (12) drive
Shape release lever (10) rotates, and changes the contact surface of steel ball (8) and special-shaped release lever (10) so that steel ball (8) stretches out, and is connect in connection
Being formed between head (7) and sleeve (9) can be around the revolute pair that steel ball common axis mutually rotates；
Step S3 is clamped；
Rotating nut (15) moves downward to draw regulation stud (16), sleeve (9), jointing (7) and gland (4), from
And realize and Hopkinson incident bar (1) is compressed, while spring (14) will be compressed；
Step S4, accumulation of energy；
After completing above-mentioned steps, torsion load is carried out to Hopkinson incident bar (1) one end, amount of torsional energy will be stored at this time
Between bite and loading end；
Step S5, release；
After the completion of to be loaded, rotation release handle (12) drives special-shaped release lever (10) to rotate, and changes steel ball (8) and is discharged with abnormity
The contact surface of bar (10) pushes up gland (4) and jointing (7) so that steel ball (8) returns to set in the case where extruding is used
In cylinder (9), to complete the moment stepped up relaxation, the energy of Hopkinson incident bar (1) storage will be quickly released, be loaded into
On test specimen far from the connection of Hopkinson incident bar (1) loading end, to realize the simulation of impact torsion load.
9. the operating method of a kind of accumulation of energy of separate type split-Hopkinson torsional bar and release device according to claim 8, special
Sign is, in step S1, checks whether ball (8) is lost and whether release handle (12) rotates normally.
10. the operating method of a kind of accumulation of energy of separate type split-Hopkinson torsional bar and release device according to claim 8, special
Sign is, in step S3, completes to mark nut (15) position after clamping, repetition is facilitated to test.
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| CN201810442947.6A CN108645696B (en) | 2018-05-10 | 2018-05-10 | Split Hopkinson torsion bar energy storage and release device and operation method |
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| CN110057663A (en) * | 2019-02-28 | 2019-07-26 | 西南交通大学 | Electromagnetic type split-Hopkinson torsional bar clamps and release device |
| CN111006942A (en) * | 2019-12-27 | 2020-04-14 | 杨为东 | Operation bench for in-situ test |
| CN111487119A (en) * | 2019-09-06 | 2020-08-04 | 西北工业大学 | Torsional stress wave releasing device |
| CN112834327A (en) * | 2021-02-03 | 2021-05-25 | 哈尔滨瞬态加载试验设备技术开发有限公司 | Hopkinson torsion bar hydraulic clamping and releasing device |
| CN112945726A (en) * | 2021-01-29 | 2021-06-11 | 太原理工大学 | Split Hopkinson bar pulling/pressing-twisting dynamic composite loading device and operation method |
| CN113029756A (en) * | 2021-03-29 | 2021-06-25 | 哈尔滨瞬态加载试验设备技术开发有限公司 | Hopkinson torsion bar hydraulic clamping and releasing device |
| CN116465587A (en) * | 2023-03-29 | 2023-07-21 | 中国飞机强度研究所 | Test system for introducing small-energy low-speed impact damage |
| CN116625848A (en) * | 2023-05-18 | 2023-08-22 | 天津大学 | Composite loading device |
| CN116818563A (en) * | 2023-06-20 | 2023-09-29 | 天津大学 | Experimental device based on hopkinson pole |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100300177A1 (en) * | 2009-05-26 | 2010-12-02 | Raytheon Company | Methods and apparatus for high frequency impact testing |
| CN102914478A (en) * | 2012-10-30 | 2013-02-06 | 北京理工大学 | Spring-lever energy storage type fatigue tension test machine |
| CN103935490A (en) * | 2014-04-28 | 2014-07-23 | 哈尔滨工程大学 | Safety valve type underwater fixed-depth releasing device |
| CN104110458A (en) * | 2014-06-23 | 2014-10-22 | 中国矿业大学(北京) | Damped system and automatic control system of split Hopkinson pressure bar |
| CN104697854A (en) * | 2015-03-11 | 2015-06-10 | 中国人民解放军陆军军官学院 | Hydraulic surrounding type locking and releasing device for energy pre-storage type Hopkinson torsional bar |
| CN205506587U (en) * | 2016-04-08 | 2016-08-24 | 浙江大学城市学院 | Lumbar vertebrae fatigue testing machine's power unit |
| CN106198227A (en) * | 2016-07-12 | 2016-12-07 | 辽宁工程技术大学 | Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device |
-
2018
- 2018-05-10 CN CN201810442947.6A patent/CN108645696B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100300177A1 (en) * | 2009-05-26 | 2010-12-02 | Raytheon Company | Methods and apparatus for high frequency impact testing |
| CN102914478A (en) * | 2012-10-30 | 2013-02-06 | 北京理工大学 | Spring-lever energy storage type fatigue tension test machine |
| CN103935490A (en) * | 2014-04-28 | 2014-07-23 | 哈尔滨工程大学 | Safety valve type underwater fixed-depth releasing device |
| CN104110458A (en) * | 2014-06-23 | 2014-10-22 | 中国矿业大学(北京) | Damped system and automatic control system of split Hopkinson pressure bar |
| CN104697854A (en) * | 2015-03-11 | 2015-06-10 | 中国人民解放军陆军军官学院 | Hydraulic surrounding type locking and releasing device for energy pre-storage type Hopkinson torsional bar |
| CN104697854B (en) * | 2015-03-11 | 2017-05-24 | 中国人民解放军陆军军官学院 | Hydraulic surrounding type locking and releasing device for energy pre-storage type Hopkinson torsional bar |
| CN205506587U (en) * | 2016-04-08 | 2016-08-24 | 浙江大学城市学院 | Lumbar vertebrae fatigue testing machine's power unit |
| CN106198227A (en) * | 2016-07-12 | 2016-12-07 | 辽宁工程技术大学 | Accumulation of energy drop hammer type coupled static-dynamic loadingi assay device |
Cited By (16)
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|---|---|---|---|---|
| CN110057663A (en) * | 2019-02-28 | 2019-07-26 | 西南交通大学 | Electromagnetic type split-Hopkinson torsional bar clamps and release device |
| CN111487119A (en) * | 2019-09-06 | 2020-08-04 | 西北工业大学 | Torsional stress wave releasing device |
| CN111006942B (en) * | 2019-12-27 | 2022-03-29 | 杨为东 | Operation bench for in-situ test |
| CN111006942A (en) * | 2019-12-27 | 2020-04-14 | 杨为东 | Operation bench for in-situ test |
| CN112945726A (en) * | 2021-01-29 | 2021-06-11 | 太原理工大学 | Split Hopkinson bar pulling/pressing-twisting dynamic composite loading device and operation method |
| CN112945726B (en) * | 2021-01-29 | 2022-06-07 | 太原理工大学 | Split Hopkinson bar pulling/pressing-twisting dynamic composite loading device and operation method |
| CN112834327B (en) * | 2021-02-03 | 2022-07-12 | 哈尔滨瞬态加载试验设备技术开发有限公司 | Hopkinson torsion bar hydraulic clamping and releasing device |
| CN112834327A (en) * | 2021-02-03 | 2021-05-25 | 哈尔滨瞬态加载试验设备技术开发有限公司 | Hopkinson torsion bar hydraulic clamping and releasing device |
| CN113029756A (en) * | 2021-03-29 | 2021-06-25 | 哈尔滨瞬态加载试验设备技术开发有限公司 | Hopkinson torsion bar hydraulic clamping and releasing device |
| CN113029756B (en) * | 2021-03-29 | 2022-11-25 | 哈尔滨瞬态加载试验设备技术开发有限公司 | Hopkinson torsion bar hydraulic clamping and releasing device |
| CN116465587A (en) * | 2023-03-29 | 2023-07-21 | 中国飞机强度研究所 | Test system for introducing small-energy low-speed impact damage |
| CN116465587B (en) * | 2023-03-29 | 2024-04-16 | 中国飞机强度研究所 | Test system for introducing small-energy low-speed impact damage |
| CN116625848A (en) * | 2023-05-18 | 2023-08-22 | 天津大学 | Composite loading device |
| CN116625848B (en) * | 2023-05-18 | 2024-01-09 | 天津大学 | Composite loading device |
| CN116818563A (en) * | 2023-06-20 | 2023-09-29 | 天津大学 | Experimental device based on hopkinson pole |
| CN116818563B (en) * | 2023-06-20 | 2024-03-08 | 天津大学 | Experimental device based on hopkinson pole |
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