CN204008329U - A kind of new type auto control stacked ring type shearing test apparatus - Google Patents
A kind of new type auto control stacked ring type shearing test apparatus Download PDFInfo
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- CN204008329U CN204008329U CN201420342284.8U CN201420342284U CN204008329U CN 204008329 U CN204008329 U CN 204008329U CN 201420342284 U CN201420342284 U CN 201420342284U CN 204008329 U CN204008329 U CN 204008329U
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Abstract
The utility model relates to a kind of new type auto control stacked ring type shearing test apparatus, on to cut box be that multilayer stacked ring type is cut box or direct shear box, under to cut box not stratified, the described box of cutting is that stacked ring type is while cutting box, on cut box and comprise the folded ring that needle bearing, side are provided with rolling steel balls row is at least installed between two-layer every layer, for measuring a plurality of shear surfaces of soil body sample; When cutting box on described and being direct shear box, above cut box size and stacked ring type cut box on to cut box size the same, share under a set of and cut box.The utility model can be tested the stress of different materials Contact face; The utility model can be tested a plurality of shear surfaces of grogs, can test the weakest breakdown point; The utility model adopts board-like framed structure, operates solid and reliable.
Description
Technical field
The utility model relates to the physical test equipment of the coarse-grained soil soil body, refers in particular to a kind of new type auto control stacked ring type shearing test apparatus.
Background technology
The unstability overwhelming majority of Geotechnical Engineering is because shear failure causes, the shear strength parameter of Accurate Determining Rock And Soil is significant in Geotechnical Engineering is built.At present, conventional shear strength parameter assay method has three axles and direct shear test, wherein direct shear test due to simple to operate, applied widely apply the most general.In thick soil particle shearing test widespread use, direct shear apparatus is being updated, and develops into ess-strain now control the multi-functional staight scissors instrument of formula large scale by early stage small size Stress Control formula.But the shortcoming that in conventional direct shear apparatus, shear surface is single exists always, make the measuring accuracy of sample not high, or likely along the most weak shear surface, destroy; The coarse soil direct shear instrument of water power institute of Sichuan University development, not eccentric all the time with vertical load in warranty test process by the relative motion of upper and lower shear box; Traditional direct shear apparatus can be used for the strength test of coarse-grained soil, but the size of sample is different, coarse particle material difference is all the more difficult for needs are measured the weakest breakdown point.The utility model is considering under the applicability and functional prerequisite of equipment, has researched and developed a kind of new type auto control stacked ring type shearing test apparatus that can improve measuring accuracy.
Summary of the invention
The purpose of this utility model is improved for the shortcoming existing in background technology and problem, provides a kind of simple and reliable for structure, can measure the new type auto control stacked ring type shearing test apparatus of a plurality of shear surfaces.
The technical solution of the utility model is a kind of new type auto control stacked ring type shearing test apparatus of structure, comprise host machine part, automatic control section, digital control meter oil sources part, it is characterized in that: described host machine part forms board-like framed structure by main machine base, curb girder and upper beam, vertical loading oil cylinder is fixed on upper beam bottom, vertical loading oil cylinder inside is provided with vertical load sensor, on vertical force-transmitting block, is provided with for measuring the perpendicular displacement sensor of sample vertical deformation; Under cut box bottom and be fixed with down and cut box plate, under cut roller row be set between box plate and main machine base; On cut on box and be connected with vertical force-transmitting block, above cut box one side and be provided with the horizontal reacting force seat being fixed on main machine base, above cut box one end and contact with the slotting in middle height of horizontal reacting force seat and become upper counter-force point; Horizontal load cylinder is arranged on horizontal reacting force seat side, with be horizontally set on main machine base on and return power beam with the level of upper beam balance, by pull bar tightening nut and level, return the girt that power beam two ends are connected and form horizontal reacting force system, the girt other end by girt articulated joint with under to cut box hinged, horizontal load cylinder inside is provided with horizontal load sensor, and horizontal displacement sensors is installed on main machine base; Described automatic control section is by computer realization, be divided into vertical loading control system and horizontal Loading Control System, comprise hydrostatic control cabinet, operation screen and the measuring system being formed by computing machine, industrial control unit (ICU), data transducer, data acquisition unit and signal conditioning circuit; Described digital control meter oil sources is partly divided into vertical digital control meter oil sources and horizontal digital control meter oil sources, for hydraulic flow and pressure are provided; Described automatic control section connects and controls digital control meter oil sources part and host machine part; On described, cut box and under cut box square-outside and round-inside, its side-walls towards curb girder one side is provided with guiding antifriction apparatus, and above cutting box is that stacked ring type is cut box or direct shear box, and stacked ring type is cut box and comprised at least one stacked ring, the size that stacked ring type is cut box and direct shear box is the same, shares under a set of and cuts box.
The utlity model has following advantage:
1, the utility model is owing to adopting the folded ring structure of multilayer, and during test, breakdown point is to occur in a weakest face, thereby can test the minimum shearing stress of sample;
2, on the utility model, cut box and multilayer stacked ring type can be installed cut box, also direct shear box can be installed, share under a set of and cut box, when staight scissors being installed cutting box, can carry out direct shear test;
3, the utility model can be tested the stress of different materials Contact face;
4, the utility model adopts board-like framed structure, operates solid and reliable.
Accompanying drawing explanation
Fig. 1 is the utility model host machine part front view.
Fig. 2 is the utility model host machine part vertical view.
Fig. 3 is the utility model host machine part left view.
Embodiment
From Fig. 1-3, the utility model comprises host machine part, automatic control section, digital control meter oil sources part, it is characterized in that: described host machine part forms board-like framed structure by main machine base 12, curb girder 24 and upper beam 17, vertical loading oil cylinder 1 is fixed on upper beam 17 bottoms, vertical loading oil cylinder 1 inside is provided with vertical load sensor 2, on vertical force-transmitting block 21, is provided with for measuring the perpendicular displacement sensor of sample vertical deformation; Under cut box 6 bottoms and be fixed with down and cut box plate 15, under cut box plate 15 bottoms and roller row 26 is set is connected with main machine base 12 with needle roller row base plate; On cut on box 7 and be connected with vertical force-transmitting block 21, above cut box 7 one sides and be provided with the horizontal reacting force seat 8 being fixed on main machine base 12, above cut box 7 one end and contact with the slotting in middle height of horizontal reacting force seat 8 and become upper counter-force point; Horizontal load cylinder 3 is arranged on horizontal reacting force seat 8 sides, with be horizontally set on main machine base 12 on and return power beam 14 with the level of upper beam 17 balances, by pull bar tightening nut 33 and level, return the girt 13 that power beam 14 two ends are connected and form horizontal reacting force systems, girt 13 other ends by girt articulated joint 34 with under to cut box hinged, horizontal load cylinder 3 inside are provided with horizontal load sensor, on main machine base 12, horizontal displacement sensors are installed; Described automatic control section is by computer realization, be divided into vertical loading control system and horizontal Loading Control System, comprise hydrostatic control cabinet, operation screen and the measuring system being formed by computing machine, industrial control unit (ICU), data transducer, data acquisition unit and signal conditioning circuit; Described digital control meter oil sources is partly divided into vertical digital control meter oil sources and horizontal digital control meter oil sources, for hydraulic flow and pressure are provided; Described automatic control section connects and controls digital control meter oil sources part and host machine part; On described, cut box 7 and under cut box 6 square-outside and round-insides, its side-walls towards curb girder 24 1 sides is provided with guiding antifriction apparatus, above cuts box 7 and cuts box or direct shear box for stacked ring type, and stacked ring type is cut box and comprised at least one stacked ring 9, the size that stacked ring type is cut box and direct shear box is the same, shares under a set of and cuts box 6.
Between vertical loading oil cylinder 1 described in the utility model and upper beam 17, be provided with Vertical Cylinders adjustable plate 22.On described in the utility model, cutting box 7 is provided with and cuts the anti-device that sticks up of box.On described in the utility model, cut box 7 and under cut and between box 6, be equipped with at least one ring and corresponding to difference crack roller row and the gib block of ring of cracking.Under described in the utility model, cut box 6 and be fixed on down and cut on box plate 15, and and under cut and between box plate 15, be provided with O type O-ring seal.On upper beam 17 described in the utility model, be provided with by lifting cantilever 18, lifting oil cylinder 19 and lifting tool 20, formed for loading and unloading the hydraulic crane system of sample.The below of vertical reference 2 described in the utility model is provided with height adjusting cushion block 23.The following surrounding of the top layer of folded ring 9 described in the utility model and top layer is overlapped respectively to be had for making the rubber finger sleeve 30,31 of sample sealing, forms and vacuumizes saturation system.Vertical force-transmitting block 21 described in the utility model and on cut and between box 7, be provided with porous disc 28, under cut box 6 inner bottom parts and be provided with lower porous disc 32.
The utility model is controlled stacked ring type shearing test apparatus automatically for measuring the shearing strength of the coarse-grained soil soil body, and the experimental study of the aspects such as surface of contact characteristic of different materials.Mainframe adopts board-like framed structure, and vertical load and tangential horizontal thrust load by digital control meter oil sources, hydraulic jack.Folded ring is cut hydrostatic control and is had two kinds of working methods: manual control mode (being only applicable to direct shear test) is controlled working method automatically with vertical, horizontal digital control meter oil sources.Vertically, horizontal load measured by vertical, horizontal load sensor, vertical, horizontal shift adopts displacement sensor.All hydraulic and electric operation by-pass valve control, switch are all installed concentratedly in hydraulic pressure comprehensive switch board.Automatic control system is supporting computing machine, a data sampling and processing system, in order to complete the automatic control of the collection storage of load, displacement and vertical load, horizontal load, shear rate.Coordinative composition of equipments has folded ring to cut box and staight scissors are cut box, for this reason, can carry out respectively stacked ring type and shear and staight scissors shear test.
Design concept:
The utility model main frame adopts board-like framed structure, and vertical loading oil cylinder 1 is installed on upper beam 17 belows, and vertical load installation of sensors is in the inside of vertical loading oil cylinder 1; Horizontal load cylinder 3 is arranged on the right flank of the horizontal reacting force seat 8 on main frame the right, and horizontal load installation of sensors is in horizontal load cylinder 3 inside; Installation stacked ring type in main frame center cuts box or staight scissors are cut box, and the folded ring of down cut box shares while cutting with direct shear test.
On stacked ring type, cut box 7 and be altogether 8 layers, be outside square, one end contacts with the end face of horizontal reacting force seat 8 becomes upper counter-force point, during shearing, top stacked ring is without movement, needle bearing is all installed between every stacked ring, folded ring is cut box two sides rolling steel balls row, the frictional resistance while moving forward and backward to reduce between each surface of contact is installed.
On direct shear apparatus, cutting box 7 is that outside is square, to cut box physical dimension identical with folded ring, under being convenient to share one, cut box 6, on cut box 7 one end and contact with the slotting in middle height of horizontal reacting force seat 8 and become upper counter-force point, on cut box 7 without mobile, its stress surface is designed to plane, cuts upwards tilting of box 7 on can reducing while shearing, on the utility model, cut box 7 end faces and be provided with anti-picking device, can effectively prevent from cutting the box tilting that makes progress and cause measuring error when shearing.
The upper and lower ring that cracks of being furnished with three kinds of differing heights between box of cutting, selects according to sample particle size for user.Upper and lower roller row 26 and the gib block of cutting between box cracks highly corresponding to difference, guarantees that upper and lower cutting between box forms and roll with capable of reducing friction resistance.
Under cut box 6 sides and be provided with after two girts 13 are connected with horizontal load cylinder 3, horizontal reacting force beam 14 and form horizontal reacting force system.Under cut box 6 and be fixedly mounted on down and cut on box plate 15, and under cut between box plate 15 and have sealing cushion rubber, during for saturated sample, prevent from leaking.Under cut on box plate 15 guide runner be installed, steel ball is installed on slide block, while preventing from loading, shear box produces lateral rotation, cuts under box, to cut box plate 15 and be furnished with axis of rolling row below, the frictional resistance while shearing to reduce; Can move forward and backward for promoting shear box conveniently assemble and disassemble sample simultaneously.
Main frame beam upside is provided with a set of hydraulic crane, consists of, for loading and unloading sample lifting cantilever 18, lifting oil cylinder 19 and lifting tool 20.
The utility model is provided with and vacuumizes saturation system, vacuumizing saturated is that corresponding viscosity is high, being difficult for saturated coarse grain figure test specimen designs, it is a kind of method that improves saturation degree, employing under cut mounting O-shaped O-ring seal between box and its base plate, in the following surrounding of top stacked ring, put the rubber finger sleeve 31 of a circle three-axis tester special use, these rubber finger sleeve 31 thickness are 2 millimeters, extensibility is more than 400%, top stacked ring puts another circle rubber finger sleeve 30 above, thereby sample is all sealed, due to rubber finger sleeve 30, 31 have very high extensibility and certain intensity, after bearing the pressure of 0.1MPa, can not destroy, in process of the test, it can be followed folded ring variation and change, the saturation degree that keeps sample top.
Vertical loading control system of the present utility model has manual control, pressure at right angle automatically to control two kinds of control modes.Manually controlling and apply vertical load, is by the servomotor controller of manual operation digital control meter oil sources, changes system oil pressure pressure, reaches vertical load and loads with stable.Pressure at right angle is controlled automatically, is by the prior setting program of computing machine basis, controls vertical digital control meter oil sources oil pressure, changes vertical loading oil cylinder working-pressure, realizes the loading of vertical load and stablizes.
Horizontal Loading Control System of the present utility model has manual control (manually time only can carry out direct shear test) and two kinds of modes of computer controlled automatic.Manually level of control load is by the servomotor controller of manual operation digital control meter oil sources, changes system oil pressure pressure, realizes horizontal load and loads with stable.Manual adjustments servomotor rotating speed, the shear rate that is up to the standard is stable.Horizontal thrust is controlled automatically, according to prior setting program by computing machine, the servomotor rotating speed of controlling vertical digital control meter oil sources oil pressure and vertical digital control meter oil sources changes cross cylinder charge oil pressure and flow, thereby horizontal shear stresses and the stable of horizontal strain speed realized apply.
The utility model hydrostatic control cabinet is mainly used in installing vertical, horizontal load ess-strain system pipeline, also for manually controlling digital control meter oil sources part, can utilize manual switch rotary switch control manually and automatically switch.Manual operation completes on control flow, automatically controls by connecting computer realization.The electric elements such as servomotor controller of hydraulic services, hand-operated direction valve, load indication electro connecting pressure gauge, hydraulic selector and pipeline thereof, industrial control unit (ICU), horizontal or vertical passage are also installed on control flow.
The utility model digital control meter oil sources is partly comprised of servomotor, high reduction gear ratio mechanical reducer, ball-screw, push action cylinder, operating cylinder etc., vertical digital control meter oil sources is partly stable for controlling vertical load, and horizontal digital control meter oil sources is partly for level of control stress, strain, load and velocity-stabilization.The pumping plant of the utility model hydraulic control system, the fast advance and retreat operation of fluid and operating cylinder being partly provided mainly to digital control meter oil sources.
The utility model completes automatic displacement with displacement transducer and measures.Folded ring is cut, staight scissors perpendicular displacement is when measure, and along the end face surrounding of upper shear box, four 50mm displacement transducers is installed.Staight scissors horizontal shift measurement be under cut box 6 levels and complete to the displacement transducer of installing 1 100 millimeters.When folded ring is cut horizontal shift measurement, adopt the displacement transducer of 9 100 millimeters, measure respectively each folded interannular displacement and under cut box 6 horizontal direction displacements, and by the mobile variable quantity of every displacement transducer of computer-automatic collection storage, analyze the position of weak face.
The utility model utilizes keyboard operation to control computing machine, automatically controls this equipment carry out experiment work by automatic control system.
Embodiment described in the utility model is only the description that preferred implementation of the present utility model is carried out; not the utility model design and scope are limited; do not departing under the prerequisite of the utility model design philosophy; various modification and improvement that in this area, engineering technical personnel make the technical solution of the utility model; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection, is all documented in claims.
Claims (9)
1. a new type auto control stacked ring type shearing test apparatus, comprises host machine part, automatic control section, digital control meter oil sources part,
It is characterized in that:
Described host machine part forms board-like framed structure by main machine base (12), curb girder (24) and upper beam (17), vertical loading oil cylinder (1) is fixed on upper beam (17) bottom, vertical loading oil cylinder (1) inside is provided with vertical load sensor (2), on vertical force-transmitting block (21), is provided with for measuring the perpendicular displacement sensor of sample vertical deformation;
Under cut box (6) bottom and be fixed with down and cut box plate (15), under cut box plate (15) bottom and roller row (26) and needle roller are set arrange base plate and be connected with main machine base (12);
On cut on box (7) and be connected with vertical force-transmitting block (21), above cut box (7) one sides and be provided with the horizontal reacting force seat (8) being fixed on main machine base (12), above cut box (7) one end and contact and become upper counter-force point with the slotting in middle height of horizontal reacting force seat (8);
Horizontal load cylinder (3) is arranged on horizontal reacting force seat (8) side, with to be horizontally set on main machine base (12) upper and return power beam (14), return by pull bar tightening nut (33) and level girt (13) the composition horizontal reacting force system that power beam (14) two ends are connected with the level of upper beam (17) balance, girt (13) other end by girt articulated joint (34) with under to cut box (6) hinged, horizontal load cylinder (3) inside is provided with horizontal load sensor, and main machine base is provided with horizontal displacement sensors on (12);
Described automatic control section is by computer realization, be divided into vertical loading control system and horizontal Loading Control System, comprise hydrostatic control cabinet, operation screen and the measuring system being formed by computing machine, industrial control unit (ICU), data transducer, data acquisition unit and signal conditioning circuit;
Described digital control meter oil sources is partly divided into vertical digital control meter oil sources and horizontal digital control meter oil sources, for hydraulic flow and pressure are provided;
Described automatic control section connects and controls digital control meter oil sources part and host machine part;
On described, cut box (7) and under cut box (6) square-outside and round-inside, its side-walls towards curb girder (24) one sides is provided with guiding antifriction apparatus, on cut box (7) and cut box or direct shear box for stacked ring type, stacked ring type is cut box and is comprised at least one stacked ring (9), the size that stacked ring type is cut box and direct shear box is the same, shares under a set of and cuts box (6).
2. new type auto control stacked ring type shearing test apparatus according to claim 1, is characterized in that: between described vertical loading oil cylinder (1) and upper beam (17), be provided with Vertical Cylinders adjustable plate (22).
3. new type auto control stacked ring type shearing test apparatus according to claim 1, is characterized in that: on described, cut box (7) and be provided with and cut the anti-device that sticks up of box.
4. new type auto control stacked ring type shearing test apparatus according to claim 1, is characterized in that: on described, cut box (7) and under cut and between box (6), be equipped with at least one ring and corresponding to difference crack roller row and the gib block of ring of cracking.
5. new type auto control stacked ring type shearing test apparatus according to claim 1, is characterized in that: under described, cut box (6) and be fixed on down that to cut box plate (15) upper, and and under cut and between box plate (15), be provided with O type O-ring seal.
6. new type auto control stacked ring type shearing test apparatus according to claim 1, is characterized in that: on described upper beam (17), be provided with by lifting cantilever (18), lifting oil cylinder (19) and lifting tool (20), formed for loading and unloading the hydraulic crane system of sample.
7. new type auto control stacked ring type shearing test apparatus according to claim 1, is characterized in that: the below of described vertical reference (2) is provided with height adjusting cushion block (23).
8. new type auto control stacked ring type shearing test apparatus according to claim 1 or 5, it is characterized in that: the top layer of described folded ring (9) and the following surrounding of top layer are overlapped respectively to be had for making rubber finger sleeve (30), (31) of sample sealing, forms and vacuumizes saturation system.
9. new type auto control stacked ring type shearing test apparatus according to claim 1, is characterized in that: described vertical force-transmitting block (21) and on cut and between box (7), be provided with porous disc (28), under cut box (6) inner bottom part and be provided with lower porous disc (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342284.8U CN204008329U (en) | 2014-06-25 | 2014-06-25 | A kind of new type auto control stacked ring type shearing test apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342284.8U CN204008329U (en) | 2014-06-25 | 2014-06-25 | A kind of new type auto control stacked ring type shearing test apparatus |
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| CN204008329U true CN204008329U (en) | 2014-12-10 |
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| CN201420342284.8U Withdrawn - After Issue CN204008329U (en) | 2014-06-25 | 2014-06-25 | A kind of new type auto control stacked ring type shearing test apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062192A (en) * | 2014-06-25 | 2014-09-24 | 成都东华卓越科技有限公司 | Novel automatic control stacked-ring type shear test apparatus |
| CN104749049A (en) * | 2015-04-21 | 2015-07-01 | 武汉理工大学 | Rock mass structural surface shear test method and device |
| CN105571957A (en) * | 2016-02-02 | 2016-05-11 | 河海大学 | Large model box for measuring shear strength of coarse-grained soil and use method |
| CN107014977A (en) * | 2017-03-30 | 2017-08-04 | 温州大学 | Use for laboratory vacuum method Ground Treatment surrounding soil horizontal displacement measurement apparatus and measuring method |
| CN107748112A (en) * | 2017-11-15 | 2018-03-02 | 中国科学院武汉岩土力学研究所 | Ring angle and ring displacement measuring device and method |
| CN114235604A (en) * | 2022-02-23 | 2022-03-25 | 成都东华卓越科技有限公司 | Direct shear apparatus for soft rock |
-
2014
- 2014-06-25 CN CN201420342284.8U patent/CN204008329U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062192A (en) * | 2014-06-25 | 2014-09-24 | 成都东华卓越科技有限公司 | Novel automatic control stacked-ring type shear test apparatus |
| CN104062192B (en) * | 2014-06-25 | 2016-06-15 | 成都东华卓越科技有限公司 | A kind of new type auto control stacked ring type shearing test apparatus |
| CN104749049A (en) * | 2015-04-21 | 2015-07-01 | 武汉理工大学 | Rock mass structural surface shear test method and device |
| CN104749049B (en) * | 2015-04-21 | 2017-11-17 | 武汉理工大学 | A kind of rock mass discontinuity shearing test method and device |
| CN105571957A (en) * | 2016-02-02 | 2016-05-11 | 河海大学 | Large model box for measuring shear strength of coarse-grained soil and use method |
| CN107014977A (en) * | 2017-03-30 | 2017-08-04 | 温州大学 | Use for laboratory vacuum method Ground Treatment surrounding soil horizontal displacement measurement apparatus and measuring method |
| CN107014977B (en) * | 2017-03-30 | 2019-08-16 | 温州大学 | Use for laboratory vacuum method Ground Treatment surrounding soil horizontal displacement measuring device and measurement method |
| CN107748112A (en) * | 2017-11-15 | 2018-03-02 | 中国科学院武汉岩土力学研究所 | Ring angle and ring displacement measuring device and method |
| CN114235604A (en) * | 2022-02-23 | 2022-03-25 | 成都东华卓越科技有限公司 | Direct shear apparatus for soft rock |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160615 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |