CN104897459A - Multidirectional loading system used for mechanical test of particles - Google Patents
Multidirectional loading system used for mechanical test of particles Download PDFInfo
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- CN104897459A CN104897459A CN201510373710.3A CN201510373710A CN104897459A CN 104897459 A CN104897459 A CN 104897459A CN 201510373710 A CN201510373710 A CN 201510373710A CN 104897459 A CN104897459 A CN 104897459A
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- loading system
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- shearing
- rectangular housing
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Abstract
The invention discloses a multidirectional loading system used for mechanical test of particles. The multifunctional loading system comprises an external rectangular shell, an internal rectangular shell, a compressed double-rod loading system and a shearing double-rod loading system. A compression force sensor is arranged at the lower end of the internal rectangular shell, which can eliminate friction generated by the compression loading system during test and effect on compression test numerical value. Rib plates are arranged on two sides of the internal upper rectangular shell inside, and the internal upper rectangular shell can be improved during shearing test, so that the internal upper rectangular shell and the internal lower rectangular shell have no contact, and the internal lower shell is connected with a linear guide rail. In addition, gravity of the internal lower shell and test particles is measured by the compression force sensor so as to calculate friction of the linear guide rail, and error of shearing force becomes smaller. A ball screw drives the double-rod loading system, the loading system can apply more uniform force on particles, and test equipment is small and has double functions of shearing and compressing and is convenient to use and accurate in measuring. By connecting the shearing loading system with a slide fastener of a shearing force sensor, the internal lower shell can be pushed and pulled, and force in the vertical direction can be measured by the compression force sensor.
Description
Technical field
The present invention relates to field of precision measurement, specifically, by Biaxial stress system, multidirectional load test is carried out to particle, and by power inductor, data are gathered.
Background technology
By vertically compressing, lateral shear particulate material, and to test in conjunction with photo-elastic instrument, the feature of the contact forces chain of granular system particle can be observed out intuitively.This equipment, small and exquisite, be easy to operation, and easy accessibility.By special two bar loading systems, make numerical density even; By the device such as floor, slide rail, the friction force affecting empirical value on producing in particle loaded process can be greatly reduced, and ensure to shear box according to rectilinear motion.
Summary of the invention
The present invention carries out multidirectional load test by Biaxial stress system to particle for a kind of, and by instrument that power inductor gathers data.
It is characterized in that: comprise outer rectangular housing, inner double square housing.
1, wherein, external shell is rectangular box structure; The two ends, lower end inside face of external shell have been connected with two pressure inductors, and power inductor is connected with a supporting plate with line slideway; The end face of shell body and side bar loading system two with compression and shear pair bar loading system and be connected respectively.
Inner bin structure is laterally zygomorphic rectangle half casing composition, and lower end half casing is connected with line slideway, and upper end casing is connected by pin with lower box when doing particles compress test, during particle shear test, fixes its position by the floor of its both sides; Poly (methyl methacrylate) plate is all inlayed in former and later two sides of two rectangular housing up and down of inner bin.
2, device as described in right 1, it is characterized in that: described compression and the two bar loading system of shearing, mainly contain ball-screw, load bar, only tooth bearing formed, the connected mode of compression-loaded system is: load plate is connected with ball-screw nut, load plate two ends symmetry fix two load bars, load bar is through outer rectangular housing, inner rectangular housing finally connects compressive plate, shearing loading system connected mode is: load plate is connected with ball-screw nut, load plate two ends symmetry fix two load bars, load bar is connected two pressure inductors being fixed on lower end casing through outer rectangular housing respectively with slide fastener and is connected.
3, the device as described in right 1, is characterized in that: described slide fastener is overlapped by slide fastener and round and smooth dish forms, and slide fastener cover is connected with shearing load bar, and round and smooth dish is connected with inductor, and round and smooth dish is placed in the groove of slide fastener cover.
4, the device as described in right 1, is characterized in that: described generating laser is arranged on shell body side and two half rectangular housing osculatory opposite position, can before shear test, and detecting inner rectangular housing surface, two ends up and down has contactless.
5, the device as described in right 1, it is characterized in that: described floor is arranged on inside shell body, upper inner housing both sides, can get rid of the friction force of interior lower end housing and inner upper end housing during shear test, also ensure that the stable of inner upper end rectangular housing simultaneously.
6, the device as described in right 1, is characterized in that: described round tray, to exert all one's strength inductor cross section uniform force for being arranged on power inductor one end, ensures power inductor axially loaded.
7, the device as described in right 1, it is characterized in that: described force of compression inductor be positioned at contain test material inner rectangular housing lower end, can get rid of compression test compression-loaded system and produce friction force to the impact of measuring numerical value, simultaneously power inductor stress balance, the data of measurement are accurate; Shearing force inductor is connected with two bar, and power inductor stress balance, the data of measurement are accurate.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention one-piece construction schematic diagram;
Fig. 2 is that apparatus of the present invention connect the slide fastener stereographic map and Local map of shearing loading system and shear sensing device;
Fig. 3 is the floor stereographic map of apparatus of the present invention fixing internal upper end rectangular housing;
Fig. 4 is the stereographic map of apparatus of the present invention round tray.
In figure:
1-outer rectangular housing 201-inner upper end rectangular housing 202-interior lower end Rectangular shell 301-compression-loaded system body
301a-ball-screw 301b-screw 301c-load plate 301d-load bar
302-shears loading system 401-force of compression inductor 402-and shears pressure pulling force inductor 5-floor
6-infrared transmitter 7-supporting plate 8-line slideway 9-compressive plate
10-round tray 11-pin hole 12a-round and smooth dish 12b-sliding sleeve
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The feature of this instrument is: comprise outer rectangular housing 1, and inner two half rectangular housing 201,202, compression-loaded system 301, shears loading system 302, connects the slide fastener 12 shearing loading system and shear sensing device.
As shown in Figure 1.
Wherein, external shell is rectangular configuration 1; The two ends, lower end inside face of external shell 1 are connected with and are connected 401 with two stretching inductors, and tensile force inductor 401 is connected with a supporting plate 7 with line slideway 8 by 10 pallets; The top of shell body 1 and right side respectively with compression-loaded system 301 with shear loading system 302 and be connected; Leave in inner upper end rectangular housing 201 and interior lower end rectangular housing 201 boundary position on the left of shell body 1 and generating laser 6 circular hole is installed, before shear test, inner upper end rectangular housing 201 can be detected with interior lower end rectangular housing 202 with or without surface contact.
Inner rectangular housing is made up of upper end rectangular housing 201 and lower end rectangular housing 202, lower end rectangular housing 201 is connected with line slideway 8, the both wings of inner upper end housing 201 and interior lower end rectangular housing 202 are with pin hole 11, when doing compression test, in pin hole 11, add pin to guarantee that inner upper end rectangular housing 201 is relative fixing with interior lower end rectangular housing 202 position.During particle shear test, by stepping up rectangular housing 201 position, bolt fixing internal upper end of floor 5 both sides of its both sides; Poly (methyl methacrylate) plate is all inlayed in two sides of two rectangular housing 201,202 up and down of inner bin.
Compression-loaded system 301 and shearing loading system 302.For compression-loaded system 301, it mainly contains ball-screw 301a and consisted of screw 301b, load plate 301c, load bar 301d.The connected mode of compression-loaded system is: load plate 301c is connected with ball-screw nut 301b, load plate 301c two ends symmetry fix two load bar 301d, load bar finally connects compression pressing plate 9 through outer rectangular housing 1, inner upper end rectangular housing 201.Shear loading system connected mode identical with compression-loaded system connected mode.
Slide fastener overlaps 12b and round and smooth dish 12a by slide fastener and forms, and slide fastener cover 12b is connected with shearing load bar, and round and smooth dish 12a is connected with inductor 402, and round and smooth dish 12a is placed in the groove of slide fastener cover 12b
(1) realize mainly through six steps during compression test:
Step one: the side poly (methyl methacrylate) plate of upper and lower for inside two ends rectangular housing 201,202 is opened;
Step 2: pre-designed organic glass post is placed in rectangular housing;
Step 3: install poly (methyl methacrylate) plate;
Step 4: regulate compression-loaded system 301, inner upper end rectangular housing 201 is contacted with interior lower end rectangular housing 202, tightens floor 5 bolts at two ends and add pin with fixing internal upper end rectangular housing 201 and interior lower end rectangular housing 202 position at pin hole 11;
Step 5: read force of compression inductor 401 numerical value, and record;
Step 6: the handwheel of rotary compression system drives ball-screw 301a rotation to carry out load test, and records power sensor data;
(2) realize mainly through five steps during shear test:
Step one: open infrared transmitter 6, and control compression-loaded system 301 to regulate the position of inner upper end housing 201, straight infrared transmitter 6, till corresponding offside leaves the wide light of about one millimeter, tightens the position of end housing on floor 5 bolts at two ends fixing internal;
Step 2: the side poly (methyl methacrylate) plate of upper and lower for inside two ends rectangular housing 201,202 is opened;
Step 3: pre-designed organic glass post is placed in rectangular housing 201,202;
Step 4: install poly (methyl methacrylate) plate;
Step 5: rotational shear loading system 302 handwheel carries out shear test, and records power sensor data.
Claims (7)
1. by Biaxial stress system, a multidirectional load test is carried out to particle, and by instrument that power inductor gathers data.It is characterized in that: comprise outer rectangular housing, inner double square housing, compression-loaded system, shear loading system, connect the slide fastener shearing loading system and shear sensing device.
Wherein, external shell is rectangular box structure; The two ends, lower end inside face of external shell have been connected with two pressure inductors, and power inductor is connected with a supporting plate with line slideway; The end face of shell body and side bar loading system two with compression and shear pair bar loading system and be connected respectively.
Inner bin structure is laterally zygomorphic rectangle half casing composition, and lower end half casing is connected with line slideway, and upper end casing is connected by pin with lower box when doing particles compress test, during particle shear test, fixes its position by the floor of its both sides; Poly (methyl methacrylate) plate is all inlayed in former and later two sides of two rectangular housing up and down of inner bin.
2. the device as described in right 1, it is characterized in that: described compression and the two bar loading system of shearing, mainly contain ball-screw, load bar, only tooth bearing formed, the connected mode of compression-loaded system is: load plate is connected with ball-screw nut, load plate two ends symmetry fix two load bars, load bar is through outer rectangular housing, inner rectangular housing finally connects compressive plate, shearing loading system connected mode is: load plate is connected with ball-screw nut, load plate two ends symmetry fix two load bars, load bar is connected two pressure inductors being fixed on lower end casing through outer rectangular housing respectively with slide fastener and is connected.
3. the device as described in right 1, is characterized in that: described slide fastener is overlapped by slide fastener and round and smooth dish forms, and slide fastener cover is connected with shearing load bar, and round and smooth dish is connected with inductor, and round and smooth dish is placed in the groove of slide fastener cover.
4. the device as described in right 1, is characterized in that: described generating laser is arranged on shell body side and two half rectangular housing osculatory opposite position, can before shear test, and detecting inner rectangular housing surface, two ends up and down has contactless.
5. the device as described in right 1, it is characterized in that: described floor is arranged on inside shell body, upper inner housing both sides, can get rid of the friction force of interior lower end housing and inner upper end housing during shear test, also ensure that the stable of inner upper end rectangular housing simultaneously.
6. the device as described in right 1, is characterized in that: described round tray, to exert all one's strength inductor cross section uniform force for being arranged on power inductor one end, ensures power inductor axially loaded.
7. the device as described in right 1, it is characterized in that: described force of compression inductor be positioned at contain test material inner rectangular housing lower end, can get rid of compression test compression-loaded system and produce friction force to the impact of measuring numerical value, simultaneously power inductor stress balance, the data of measurement are accurate; Shearing force inductor is connected with two bar, and power inductor stress balance, the data of measurement are accurate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510373710.3A CN104897459B (en) | 2015-06-23 | 2015-06-23 | A kind of multidirectional loading system for particulate matter mechanical test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510373710.3A CN104897459B (en) | 2015-06-23 | 2015-06-23 | A kind of multidirectional loading system for particulate matter mechanical test |
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| CN104897459A true CN104897459A (en) | 2015-09-09 |
| CN104897459B CN104897459B (en) | 2018-03-30 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105203418A (en) * | 2015-10-15 | 2015-12-30 | 郑州轻工业学院 | pneumatic grain hardness detector |
| CN105547863A (en) * | 2016-01-18 | 2016-05-04 | 北京工业大学 | Bidirectional sample conveying component and two-dimensional rock sample seepage test device applying same |
| CN106226202A (en) * | 2016-07-04 | 2016-12-14 | 北京航空航天大学 | A kind of for observational record granular materials carrying node configuration and the photoelastic instrument of characteristic |
| CN107907408A (en) * | 2017-10-27 | 2018-04-13 | 海南师范大学 | Dynamic thermomechanical analysis apparatus and mechanical property measuring method suitable for granular materials |
| CN108279155A (en) * | 2018-01-29 | 2018-07-13 | 东北大学 | A kind of multidirectional loading structure surface intensity measurement device and application method |
| CN109781528A (en) * | 2019-02-18 | 2019-05-21 | 长安大学 | The device and its application method of swollen effect are cut in test asphalt transition process |
| CN109781506A (en) * | 2019-01-30 | 2019-05-21 | 航天科工防御技术研究试验中心 | A kind of static loading method and device |
| CN110208080A (en) * | 2019-06-21 | 2019-09-06 | 华东交通大学 | A kind of granular materials contact stress Visualization loading equipemtn and its application method |
| CN111006974A (en) * | 2019-12-12 | 2020-04-14 | 北京科技大学 | Particle material fluid-solid coupling photoelastic experimental device and using method thereof |
| CN113588440A (en) * | 2021-09-27 | 2021-11-02 | 华北科技学院 | Real-time observation test platform for rock microscopic structure under multi-field coupling |
| CN113654919A (en) * | 2021-08-30 | 2021-11-16 | 华侨大学 | Self-balancing testing device and testing method for shearing resistance of single-cabin pipe gallery joint |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203418A (en) * | 2015-10-15 | 2015-12-30 | 郑州轻工业学院 | pneumatic grain hardness detector |
| CN105547863A (en) * | 2016-01-18 | 2016-05-04 | 北京工业大学 | Bidirectional sample conveying component and two-dimensional rock sample seepage test device applying same |
| CN106226202A (en) * | 2016-07-04 | 2016-12-14 | 北京航空航天大学 | A kind of for observational record granular materials carrying node configuration and the photoelastic instrument of characteristic |
| CN107907408A (en) * | 2017-10-27 | 2018-04-13 | 海南师范大学 | Dynamic thermomechanical analysis apparatus and mechanical property measuring method suitable for granular materials |
| CN108279155A (en) * | 2018-01-29 | 2018-07-13 | 东北大学 | A kind of multidirectional loading structure surface intensity measurement device and application method |
| CN109781506A (en) * | 2019-01-30 | 2019-05-21 | 航天科工防御技术研究试验中心 | A kind of static loading method and device |
| CN109781528A (en) * | 2019-02-18 | 2019-05-21 | 长安大学 | The device and its application method of swollen effect are cut in test asphalt transition process |
| CN110208080A (en) * | 2019-06-21 | 2019-09-06 | 华东交通大学 | A kind of granular materials contact stress Visualization loading equipemtn and its application method |
| CN110208080B (en) * | 2019-06-21 | 2021-08-13 | 华东交通大学 | Particle material contact stress visual test loading equipment and use method thereof |
| CN111006974A (en) * | 2019-12-12 | 2020-04-14 | 北京科技大学 | Particle material fluid-solid coupling photoelastic experimental device and using method thereof |
| CN113654919A (en) * | 2021-08-30 | 2021-11-16 | 华侨大学 | Self-balancing testing device and testing method for shearing resistance of single-cabin pipe gallery joint |
| CN113654919B (en) * | 2021-08-30 | 2023-06-23 | 华侨大学 | Self-balancing testing device and testing method for single-cabin pipe gallery joint shearing resistance |
| CN113588440A (en) * | 2021-09-27 | 2021-11-02 | 华北科技学院 | Real-time observation test platform for rock microscopic structure under multi-field coupling |
| CN113588440B (en) * | 2021-09-27 | 2022-02-08 | 华北科技学院 | Real-time observation test platform for rock microscopic structure under multi-field coupling |
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| CN104897459B (en) | 2018-03-30 |
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