CN112730034A - Portable instrumented impact press-in instrument - Google Patents
Portable instrumented impact press-in instrument Download PDFInfo
- Publication number
- CN112730034A CN112730034A CN202110076931.XA CN202110076931A CN112730034A CN 112730034 A CN112730034 A CN 112730034A CN 202110076931 A CN202110076931 A CN 202110076931A CN 112730034 A CN112730034 A CN 112730034A
- Authority
- CN
- China
- Prior art keywords
- outer sleeve
- displacement
- portable
- unit
- instrument
- 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.)
- Pending
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 68
- 238000010304 firing Methods 0.000 claims abstract description 19
- 238000012546 transfer Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 11
- 238000009527 percussion Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 13
- 238000012360 testing method Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 238000007373 indentation Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000009533 lab test Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013211 curve analysis Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/307—Investigating 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
-
- 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
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/48—Investigating hardness or rebound hardness by performing impressions under impulsive load by indentors, e.g. falling ball
Abstract
The invention discloses a portable instrumented impact press-in instrument, which comprises an instrument frame, a pressure head unit, a firing unit and a displacement transfer unit, wherein the instrument frame comprises an instrument chassis, a level gauge and an outer sleeve, and the level gauge and the outer sleeve are both arranged on the instrument chassis; the pressure head unit is including setting up strike head and transfer line in the outer sleeve, strike the head install in the bottom of transfer line, first opening has been seted up to the outer sleeve bottom, the instrument chassis corresponds second opening has been seted up to first opening, it is suitable for to strike the head and passes first opening reaches second opening and testee contact, and this portable instrumentization strikes the appearance of impressing is small, and measurement accuracy is high.
Description
Technical Field
The invention relates to the technical field of material mechanical property testing, in particular to a portable instrumented impact indenter.
Background
The mechanical property parameters of the material are always the focus of basic research field and are also the important basis for the structural design and safety performance evaluation of various materials. The traditional mechanical property related tests such as uniaxial tension, compression, torsion and the like are important methods for obtaining mechanical parameters and researching mechanical characteristics of materials. The test usually requires cutting a sample with a certain size and shape on a test piece for measurement, has certain destructiveness on the test piece, has relatively strict requirements on the size, preparation, shape and the like of the sample, and is difficult to meet engineering field measurement. In addition, the traditional mechanical property measurement method has limitation in the aspect of mechanical property characterization of materials with small scale, surface film layers and the like. With the rapid development of the fields of surface modification materials, films, coating materials, composite materials, nano materials and the like, the pressing-in technology is used as a micro-area and micro-loss testing mode, the operation is relatively simple and convenient, the requirements on sample preparation and test piece alignment are relatively low, and the purpose of portability is easily achieved, so that the device has the potential of solving the three problems. The press-in method and its unique role in the field of surface material science and engineering are increasingly gaining attention.
The instrumented indentation measurement is mainly to record the load and the indentation depth so as to obtain a load-indentation depth relation curve, and to obtain parameters such as hardness, elastic modulus and the like of a measured material through an analysis curve. The method greatly reduces the error of the test by avoiding searching the indentation position and measuring the residual area of the indentation. And by combining a proper mechanical model and derivation, abundant mechanical parameter information can be obtained from the curve analysis. The hardness, elastic modulus, stress-strain curve, fracture toughness, creep property, fatigue property, adhesion and other parameters of the material can be obtained by the current press-in test. After the development of more than 20 years, the instrumented indentation method becomes an important means for detecting the mechanical property of surface engineering. Most of the current common pressing-in instruments are laboratory equipment, which has strict requirements on working environment and sample preparation, but in practical engineering application, many situations that the traditional laboratory test is limited often exist, for example, oil pipelines and other objects to be tested are located in the field or are difficult to disassemble, and the field measurement is required to be realized; or the laboratory test procedure is complex and requires on-site preliminary evaluation of the mechanical parameters of the material.
The existing portable instrumented indenter measurement principle belongs to a frame reference type indenter, the working principle of the indenter testing machine of the type is mostly motor-driven, a load is calculated by a series load sensor, and the displacement of an action shaft is measured by a displacement sensor. The structural design determines that the measured displacement is the total displacement of a measuring loop (including frame deformation and the like), and the measurement of the penetration depth is often greatly influenced; to achieve a larger press-in load, a larger load applying device is often required, causing an increase in manufacturing cost and limiting the development of further miniaturized portable apparatuses.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a portable instrumented impact indenter which is small in size and high in measurement accuracy.
The purpose of the invention is realized by adopting the following technical scheme:
a portable instrumented impact indenter comprises an instrument frame, a pressure head unit, a firing unit and a displacement transfer unit;
the instrument frame comprises an instrument chassis, a gradienter and an outer sleeve, and the gradienter and the outer sleeve are both arranged on the instrument chassis;
the pressure head unit comprises an impact head and a transmission rod which are arranged in the outer sleeve, the impact head is installed at the bottom end of the transmission rod, a first opening is formed in the bottom end of the outer sleeve, a second opening is formed in the instrument chassis, the outer sleeve is inserted into the second opening, and the impact head is suitable for penetrating through the first opening to be in contact with a measured object;
the trigger unit comprises a trigger seat, an adjusting spring, a spring plug, sliding grooves and a trigger, the sliding grooves are through holes formed in two sides of the outer sleeve, the through holes extend along the length direction of the outer sleeve and form the sliding grooves, the spring plug, the adjusting spring and the trigger seat are arranged in the outer sleeve and are sequentially arranged downwards along the axial direction of the outer sleeve, the top end of the transmission rod is fixedly connected with the bottom end of the trigger seat, the trigger seat is connected with the outer sleeve in a sliding mode, sliding parts are formed at two ends of the trigger seat corresponding to the sliding grooves and are in sliding fit with the sliding grooves, the spring plug is fixedly connected with the outer sleeve, and one end of the trigger is suitable for extending into the outer sleeve through the sliding grooves to limit displacement of the transmission rod;
the displacement transfer unit is arranged in the outer sleeve and comprises a laser, a displacement unit, a movable grating, a fixed grating, a photoelectric receiver, a signal processing circuit and a displacement rod; the bottom end of the displacement rod penetrates through the spring plug and is fixedly connected with the percussion seat, the displacement unit is installed at the top end of the displacement rod, the laser and the photoelectric receiver are arranged on the inner wall of the outer sleeve and are arranged oppositely, the movable grating and the fixed grating are parallel to each other and extend downwards along the axial direction of the outer sleeve, the displacement unit is arranged between the laser and the photoelectric receiver, the movable grating and the fixed grating are arranged between the displacement unit and the photoelectric receiver, the movable grating is fixedly connected with the displacement unit, and the laser, the movable grating, the fixed grating and the photoelectric receiver are in communication connection with the signal processing circuit.
Furthermore, the instrument frame further comprises a horizontal adjusting screw installed at the corner of the instrument chassis and a base installed at one end, far away from the instrument chassis, of the horizontal adjusting screw.
Further, the base is made of a permanent magnet.
Furthermore, the number of the gradienters is two, and the connecting line of the gradienters and the center of the outer sleeve is 90 degrees.
Further, the pressure head unit further comprises a return spring gasket and a return spring, the return spring gasket is fixedly mounted on the transmission rod, the transmission rod is sleeved with the return spring, one end of the return spring is fixedly connected with the return spring gasket, and the other end of the return spring is abutted to the bottom wall of the outer sleeve.
Further, the pressure head unit is still including setting up inner skleeve and setting in the outer skleeve buffer block in the inner skleeve blocks up, the transfer line bottom is passed buffer block blocks up and installs the spring shim that resets, the inner skleeve bottom corresponds first opening is provided with the third opening.
Further, install first buffer block and second buffer block on the inner wall of inner skleeve, first buffer block be suitable for with homing spring gasket top butt, the second buffer block be suitable for with homing spring gasket bottom butt.
Further, the level gauge is detachably connected with the instrument chassis.
Furthermore, a plurality of positioning holes are formed in the side face of the displacement rod, and the trigger is suitable for being inserted and matched with any one of the positioning holes.
Compared with the prior art, the invention has the beneficial effects that:
according to the device, the pressure head unit, the firing mechanism and the displacement sensor unit are matched, and the original loading mode of applying load through motor driving is replaced by the loading mode of impact load, so that a user can apply larger load to an object to be measured without a large firing mechanism, and the whole device is favorably miniaturized; meanwhile, the laser, the movable grating, the fixed grating and the photoelectric receiver are matched to measure the pressing-in amount of the impact head, so that the measurement precision is high, and the problem of insufficient measurement precision when the traditional pressing-in instrument testing machine measures displacement is solved; the displacement is measured in a non-contact mode in the measuring process, the triggering unit, the pressure head unit and the displacement transfer unit are designed in a separated mode, only the punching head part is in contact with a measured sample in the pressing-in process, displacement measuring loops are greatly reduced, and the requirement for system rigidity is lowered.
Drawings
FIG. 1 is a schematic diagram of a portable instrumented impact indenter of the present invention;
FIG. 2 is a cross-sectional view of a portable instrumented impact indenter of the present invention;
the figure is as follows: 1. an instrument frame; 11. an instrument chassis; 111. a second opening; 13. an outer sleeve; 131. a first opening; 14. a horizontal adjustment screw; 15. a base; 2. a ram unit; 21. an impact head; 22. a transmission rod; 23. a homing spring washer; 24. a homing spring; 25. an inner sleeve; 251. a third opening; 26. blocking the buffer block; 27. a first buffer block; 28. a second buffer block; 3. a firing unit; 31. a percussion seat; 32. adjusting the spring; 33. the spring is blocked; 34. a chute; 35. a trigger; 4. a displacement transfer unit; 41. a laser; 42. a displacement unit; 43. moving the optical grating; 44. determining a grating; 45. a photoelectric receiver; 46. a signal processing circuit; 47. a displacement rod.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
As shown in fig. 1 and 2, a portable instrumented impact indenter of the present invention includes an instrumentation frame 1, a ram unit 2, a firing unit 3, and a displacement transfer unit 4,
the instrument frame 1 comprises an instrument chassis 11, a level and an outer sleeve 13, wherein the level and the outer sleeve 13 are both arranged on the instrument chassis 11, and the level and the instrument chassis 11 are detachably connected in the application so as to facilitate a user to maintain and replace the level.
The pressure head unit 2 comprises an impact head 21 and a transmission rod 22 which are arranged in an outer sleeve 13, the impact head 21 is installed at the bottom end of the transmission rod 22, a first opening 131 is formed in the bottom end of the outer sleeve 13, a second opening 111 is formed in the instrument chassis 11, the outer sleeve 13 is inserted into the second opening 111, and the impact head 21 is suitable for penetrating through the first opening 131 to be in contact with a measured object;
the firing unit 3 comprises a firing seat 31, an adjusting spring 32, a spring plug 33, a sliding chute 34 and a trigger 35, wherein the sliding chute 34 is a through hole formed in two sides of the outer sleeve 13, the through hole extends along the length direction of the outer sleeve 13 and forms the sliding chute 34, the spring plug 33, the adjusting spring 32 and the firing seat 31 are arranged in the outer sleeve 13 and are sequentially arranged downwards along the axial direction of the outer sleeve 13, the top end of the transmission rod 22 is fixedly connected with the bottom end of the firing seat 31, the firing seat 31 is slidably connected with the outer sleeve 13, sliding parts are formed at two ends of the firing seat 31 corresponding to the sliding chute 34, the sliding parts are slidably matched with the sliding chute 34, the spring plug 33 is fixedly connected with the outer sleeve 13, and one end of the trigger 35 is suitable for extending into the;
the displacement transfer unit 4 is arranged in the outer sleeve 13, and the displacement transfer unit 4 comprises a laser 41, a displacement unit 42, a movable grating 43, a fixed grating 44, a photoelectric receiver 45, a signal processing circuit 46 and a displacement rod 47; the bottom end of a displacement rod 47 penetrates through a spring plug 33 to be fixedly connected with the firing seat 31, a displacement unit 42 is arranged at the top end of the displacement rod 47, a laser 41 and a photoelectric receiver 45 are arranged on the inner wall of the outer sleeve 13 and are arranged oppositely, a movable grating 43 and a fixed grating 44 are mutually parallel and extend downwards along the axial direction of the outer sleeve 13, the displacement rod 47 is arranged between the laser 41 and the photoelectric receiver 45, the movable grating 43 and the fixed grating 44 are arranged between the displacement unit 42 and the photoelectric receiver 45, the movable grating 43 is fixedly connected with the displacement unit 42, when in use, the laser emitted from the laser 41 sequentially passes through the movable grating 43 and the fixed grating 44 to form interference fringes, and is received by a photoelectric receiver 45, the laser 41, the movable grating 43, the fixed grating 44 and the photoelectric receiver 45 are connected with a signal processing circuit 46 in a communication way, so that the signal received by the photoreceiver 45 can be transmitted to the user's terminal through the signal processing circuit 46.
The instrument frame 1 further comprises a horizontal adjusting screw 14 mounted at the corner of the instrument chassis 11 and a base 15 mounted at one end of the horizontal adjusting screw 14 far away from the instrument chassis 11, wherein the base 15 is made of a permanent magnet.
When the portable instrumented impact indenter is used, a suitable position is selected on a test piece, the portable instrumented impact indenter is placed on the side wall or the plane of a pipeline to be measured, for example, the instrument main body is adjusted to be horizontal through the horizontal adjusting screw 14 and the gradienter, preferably, two gradienters are arranged in the application, the connecting line of the two gradienters and the center of the outer sleeve 13 is 90 degrees, so that the levelness of the device body along the axial direction of the instrument chassis 11 and the levelness perpendicular to the axial direction can be measured respectively, the base 15 is adsorbed on the side wall or the plane of the pipeline to be measured, the indenter is firmly fixed on the surface of the pipeline to be measured, and if the surface to be measured is a non-magnetic material, the base 15 can be adhered and fixed.
Then, the trigger 35 on the outer sleeve 13 is released, the firing base 31 is lifted to the preset highest position, and at the moment, the firing base 31 presses the adjusting spring 32, so that the adjusting spring 32 is compressed; the trigger 35 is inserted, a plurality of positioning holes are formed in the side surface of the displacement rod 47, the trigger 35 can be inserted and matched with any positioning hole to fasten the transmission rod 22, and meanwhile, the compression amount of the spring 32 can be adjusted through different positioning holes, so that the size of the applied impact load can be adjusted; then, the laser 41, the photo receiver 45, and the signal processing circuit 46 are turned on, and the displacement is zeroed.
After zero setting, the trigger 35 is pulled out to loosen the transmission rod 22, the adjusting spring 32 pushes the percussion seat 31 to move downwards along the axial direction of the outer sleeve 13, and the transmission rod 22 and the impact head 21 are synchronously driven to move downwards linearly along the axial direction of the outer sleeve 13, so that the impact head 21 can apply impact load to the surface to be measured of the test piece.
The displacement signal of the impact head 21 in the motion process is collected by a signal processing circuit 46 in the displacement transfer unit 4, specifically, the movable grating 43 moves along with the displacement rod 47 and the transmission rod 22 and moves relative to the fixed grating 44, at this time, the interference fringe generated after the laser passes through the fixed grating 44 and the movable grating 43 also moves correspondingly, the photoelectric receiver 45 receives the interference fringe signal, specifically, when the movable grating 43 moves a grating distance relative to the fixed grating 44, the interference fringe moves a period relatively, the electric signal generated by the photoelectric receiver 45 changes a period, the signal processor converts the electric signal into a displacement signal and transmits the displacement signal to a user terminal, the user processes the collected original signals of the displacement and the time to obtain a real displacement and time signal, the displacement calculates a second derivative of the displacement with respect to the time to obtain an acceleration and a time signal, because the mass of the impact head 21, the transmission rod 22, the percussion seat 31, the displacement rod 47 and the displacement unit 42 is known, the load signal in the motion process can be obtained by combining the acceleration signal calculation, the real displacement and the load signal in the impact loading process can be obtained by calculation, the real displacement and the load are brought into a contact mechanical model for data processing, and the mechanical parameter results of the materials, such as hardness, modulus and the like, are obtained and output.
According to the device, the pressure head unit 2, the firing mechanism and the displacement sensor unit are matched, and the original loading mode of applying load through motor driving is replaced by the loading mode of impact load, so that a user can apply larger load to an object to be measured without a large firing mechanism, and the whole device is favorably miniaturized; meanwhile, the laser 41, the movable grating 43, the fixed grating 44 and the photoelectric receiver 45 are matched to measure the pressing-in amount of the impact head 21, so that the measurement precision is high, and the problem of insufficient measurement precision when the traditional pressing-in instrument tester measures displacement is solved; non-contact displacement measurement is adopted in the measuring process, the firing unit 3, the pressure head unit 2 and the displacement transfer unit 4 are designed in a separated mode, only the stamping head part is in contact with a measured sample in the pressing-in process, displacement measuring loops are greatly reduced, and the requirement on system rigidity is lowered.
Specifically, for punching press head resets after facilitating the use, this application pressure head unit 2 still includes playback spring gasket 23 and playback spring 24, and playback spring gasket 23 fixed mounting is on transfer line 22, and the transfer line 22 is located to the playback spring 24 cover, and playback spring 24 one end and playback spring gasket 23 rigid coupling, the diapire butt of the other end and outer sleeve 13.
In the process that the impact head 21 applies impact load to the surface to be measured of the test piece, the return spring gasket 23 moves downwards along with the transmission rod 22, so that the return spring 24 is extruded until the impact head 21 is in contact with the surface to be measured of the test piece, at the moment, the return spring 24 restores the original state and pushes the return spring gasket 23 to reset, so that the impact head 21 restores the original position, and meanwhile, the arranged return spring 24 can provide buffering for the return spring gasket 23 when the impact head 21 applies the impact load, so that the return spring is prevented from directly impacting the bottom wall of the outer sleeve 13.
Preferably, the pressure head unit 2 further comprises an inner sleeve 25 disposed in the outer sleeve 13 and a buffer block plug 26 disposed in the inner sleeve 25, the bottom end of the transmission rod 22 passes through the buffer block plug 26 and is provided with the return spring washer 23, and the bottom end of the inner sleeve 25 is provided with a third opening 251 corresponding to the first opening 131.
Install first buffer block 27 and second buffer block 28 on the inner wall of inner skleeve 25, first buffer block 27 is suitable for with playback spring gasket 23 top butt, second buffer block 28 is suitable for with playback spring gasket 23 bottom butt, when impact head 21 applys impact load, second buffer block 28 can with playback spring gasket 23 butt, in order to avoid playback spring gasket 23 direct and inner wall of inner skleeve 25 to take place the striking, and the first buffer block 27 that sets up can take place the striking with playback spring gasket 23 butt when playback spring gasket 23 resets, avoid it to block up 26 with the buffer block and take place the striking and lead to the damage.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (9)
1. The utility model provides a portable instrumentization impact indenter which characterized in that: comprises an instrument frame, a pressure head unit, a firing unit and a displacement transfer unit,
the instrument frame comprises an instrument chassis, a gradienter and an outer sleeve, and the gradienter and the outer sleeve are both arranged on the instrument chassis;
the pressure head unit comprises an impact head and a transmission rod which are arranged in the outer sleeve, the impact head is installed at the bottom end of the transmission rod, a first opening is formed in the bottom end of the outer sleeve, a second opening is formed in the instrument chassis, the outer sleeve is inserted into the second opening, and the impact head is suitable for penetrating through the first opening to be in contact with a measured object;
the trigger unit comprises a trigger seat, an adjusting spring, a spring plug, sliding grooves and a trigger, the sliding grooves are through holes formed in two sides of the outer sleeve, the through holes extend along the length direction of the outer sleeve and form the sliding grooves, the spring plug, the adjusting spring and the trigger seat are arranged in the outer sleeve and are sequentially arranged downwards along the axial direction of the outer sleeve, the top end of the transmission rod is fixedly connected with the bottom end of the trigger seat, the trigger seat is connected with the outer sleeve in a sliding mode, sliding parts are formed at two ends of the trigger seat corresponding to the sliding grooves and are in sliding fit with the sliding grooves, the spring plug is fixedly connected with the outer sleeve, and one end of the trigger is suitable for extending into the outer sleeve through the sliding grooves to limit displacement of the transmission rod;
the displacement transfer unit is arranged in the outer sleeve and comprises a laser, a displacement unit, a movable grating, a fixed grating, a photoelectric receiver, a signal processing circuit and a displacement rod; the bottom end of the displacement rod penetrates through the spring plug and is fixedly connected with the percussion seat, the displacement unit is installed at the top end of the displacement rod, the laser and the photoelectric receiver are arranged on the inner wall of the outer sleeve and are arranged oppositely, the movable grating and the fixed grating are parallel to each other and extend downwards along the axial direction of the outer sleeve, the displacement unit is arranged between the laser and the photoelectric receiver, the movable grating and the fixed grating are arranged between the displacement unit and the photoelectric receiver, the movable grating is fixedly connected with the displacement unit, and the laser, the movable grating, the fixed grating and the photoelectric receiver are in communication connection with the signal processing circuit.
2. The portable instrumented impact indenter of claim 1, wherein: the instrument frame further comprises a horizontal adjusting screw arranged at the corner of the instrument chassis and a base arranged at one end, far away from the instrument chassis, of the horizontal adjusting screw.
3. The portable instrumented impact indenter of claim 2, wherein: the base is made of a permanent magnet.
4. The portable instrumented impact indenter of claim 1, wherein: the gradienter is provided with two, and two gradienters are 90 degrees with outer sleeve center line.
5. The portable instrumented impact indenter of claim 1, wherein: the pressure head unit further comprises a return spring gasket and a return spring, the return spring gasket is fixedly mounted on the transmission rod, the transmission rod is sleeved with the return spring, one end of the return spring is fixedly connected with the return spring gasket, and the other end of the return spring is abutted to the bottom wall of the outer sleeve.
6. The portable instrumented impact indenter of claim 5, wherein: the pressure head unit is still including setting up inner skleeve and setting in the outer skleeve buffer block in the inner skleeve blocks up, the transfer line bottom is passed the buffer block blocks up and installs the spring shim that resets, the inner skleeve bottom corresponds first opening is provided with the third opening.
7. The portable instrumented impact indenter of claim 6, wherein: install first buffer block and second buffer block on the inner wall of inner skleeve, first buffer block be suitable for with homing spring gasket top butt, the second buffer block be suitable for with homing spring gasket bottom butt.
8. The portable instrumented impact indenter of claim 1, wherein: the level gauge is detachably connected with the instrument chassis.
9. The portable instrumented impact indenter of claim 1, wherein: a plurality of positioning holes are formed in the side face of the displacement rod, and the trigger is suitable for being matched with any one of the positioning holes in an inserted mode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110076931.XA CN112730034A (en) | 2021-01-20 | 2021-01-20 | Portable instrumented impact press-in instrument |
| PCT/CN2021/077204 WO2022156030A1 (en) | 2021-01-20 | 2021-02-22 | Portable instrumented impact press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110076931.XA CN112730034A (en) | 2021-01-20 | 2021-01-20 | Portable instrumented impact press-in instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112730034A true CN112730034A (en) | 2021-04-30 |
Family
ID=75593697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110076931.XA Pending CN112730034A (en) | 2021-01-20 | 2021-01-20 | Portable instrumented impact press-in instrument |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112730034A (en) |
| WO (1) | WO2022156030A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2469434Y (en) * | 2001-04-04 | 2002-01-02 | 中国科学院金属研究所 | Indentation making equipment measuirng residual stress by impact impressing method |
| US20050016264A1 (en) * | 2001-12-21 | 2005-01-27 | Enno Anthe | Hardness measuring device comprising a housing and a penetration body in particular a manual device |
| CN101000252A (en) * | 2006-12-01 | 2007-07-18 | 华中科技大学 | Double-raster displacement sensor |
| CN110208121A (en) * | 2019-07-15 | 2019-09-06 | 沈阳天星试验仪器有限公司 | A kind of shear pin type double impression meter applying test force by jump bit |
| CN210803166U (en) * | 2019-10-18 | 2020-06-19 | 上海天祥质量技术服务有限公司 | Elastic material shock attenuation capability test device for sole |
| CN112129659A (en) * | 2020-09-24 | 2020-12-25 | 华东理工大学 | Portable dynamic indentation testing device and testing method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3158878B2 (en) * | 1994-07-28 | 2001-04-23 | 松下電器産業株式会社 | Optical encoder |
| CN1170137C (en) * | 2001-04-04 | 2004-10-06 | 中国科学院金属研究所 | Impression producing device for fixed point |
| CN200986441Y (en) * | 2006-12-01 | 2007-12-05 | 华中科技大学 | Dual-grating displacement sensor |
| FR2953291B1 (en) * | 2009-11-30 | 2017-01-20 | Univ Rennes | PORTABLE INSTRUMENTAL INDENTATION DEVICE |
-
2021
- 2021-01-20 CN CN202110076931.XA patent/CN112730034A/en active Pending
- 2021-02-22 WO PCT/CN2021/077204 patent/WO2022156030A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2469434Y (en) * | 2001-04-04 | 2002-01-02 | 中国科学院金属研究所 | Indentation making equipment measuirng residual stress by impact impressing method |
| US20050016264A1 (en) * | 2001-12-21 | 2005-01-27 | Enno Anthe | Hardness measuring device comprising a housing and a penetration body in particular a manual device |
| CN101000252A (en) * | 2006-12-01 | 2007-07-18 | 华中科技大学 | Double-raster displacement sensor |
| CN110208121A (en) * | 2019-07-15 | 2019-09-06 | 沈阳天星试验仪器有限公司 | A kind of shear pin type double impression meter applying test force by jump bit |
| CN210803166U (en) * | 2019-10-18 | 2020-06-19 | 上海天祥质量技术服务有限公司 | Elastic material shock attenuation capability test device for sole |
| CN112129659A (en) * | 2020-09-24 | 2020-12-25 | 华东理工大学 | Portable dynamic indentation testing device and testing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022156030A1 (en) | 2022-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2621935C2 (en) | Indentation device, automated measurement system and method for materials mechanical properties determination by indentation method | |
| US9581533B2 (en) | Modular hardness testing machine | |
| KR100903560B1 (en) | Apparatus for providing impact test | |
| CN101413859A (en) | Method and system for testing material hardness | |
| CN204027952U (en) | Mortar penetrometer calibrating installation | |
| CN102252924A (en) | Micro-nano-scale in-situ indentation testing device based on double-displacement detection | |
| US7066013B2 (en) | Hardness tester | |
| KR20090042001A (en) | Indentation test system for residual stress evaluation based on fea solutions | |
| CN110658056A (en) | Circular pipe fitting low-speed drop hammer impact test detection device and impact test instrument | |
| CN105136453B (en) | A kind of transmission selector fork strength test system | |
| CN107702990B (en) | Acoustic emission extensometer and test method thereof | |
| CN112730034A (en) | Portable instrumented impact press-in instrument | |
| CN110424362B (en) | Optical fiber type temperature self-compensating static sounding sensor | |
| CN115356142B (en) | Hydraulic rock drill performance detection system and method | |
| KR200201924Y1 (en) | Schmidt hammer tester | |
| CN113834750A (en) | Concrete resiliometer calibration device and concrete resiliometer calibration method | |
| KR101727504B1 (en) | Apparatus for Portable Verifying Tester of Measuring Instrument having Radiation Shield | |
| CN109357606A (en) | A kind of calibrating device for vibrating string type strain transducer clamping device | |
| CN109443637A (en) | A kind of dynamic response caliberating device of the resistance-strain chip pressure-measuring system of spring cam structure | |
| CN212134304U (en) | Nondestructive detector for strength of lightweight aggregate concrete | |
| CN216560126U (en) | Concrete resiliometer calibrating device | |
| CN218036215U (en) | Structural design of digital display resiliometer | |
| CN110823734A (en) | Method and device for measuring Brinell hardness | |
| CN214097013U (en) | Wall hardness detection device for construction | |
| CN217930821U (en) | Motion waveform calibration device suitable for eccentric shaft |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210430 |