CN206523343U - A kind of device that the axle sample of kaolin three is produced using external air pump - Google Patents

A kind of device that the axle sample of kaolin three is produced using external air pump Download PDF

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Publication number
CN206523343U
CN206523343U CN201720087145.9U CN201720087145U CN206523343U CN 206523343 U CN206523343 U CN 206523343U CN 201720087145 U CN201720087145 U CN 201720087145U CN 206523343 U CN206523343 U CN 206523343U
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CN
China
Prior art keywords
cylinder
piston rod
consolidation
kaolin
air pump
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Expired - Fee Related
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CN201720087145.9U
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Chinese (zh)
Inventor
傅了
傅了一
周建
徐杰
余良贵
周佳锦
龚晓南
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Zhejiang University ZJU
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Zhejiang University ZJU
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Abstract

The utility model discloses a kind of device that the axle sample of kaolin three is produced using external air pump, the device includes Pneumatic controller and is consolidated into sampling device;Sampling device is consolidated into by transparent plexiglass cylinder outer cover, consolidate cylinder upper cover plate, consolidate the part composition of cylinder base three, Pneumatic controller includes cylinder, piston rod, control valve, through consolidating, cylinder base is same to be located in plexiglass cylinder outer cover piston rod, Pneumatic controller is used to regulate and control air pressure in cylinder so as to promote piston rod to move up and down, device of the present utility model only need to be by changing the size i.e. controllable consolidation pressure of external air pressure, and continuously adjustable pressure value, it is lighter, it is removable, sample preparation available for small size triaxial test, be particularly suitable for use in kaolin triaxial machining, it is prepared by the sample preparation of the experiments such as power cycle.

Description

A kind of device that the axle sample of kaolin three is produced using external air pump
Technical field
The utility model is related to a kind of preparation facilities of the axle sample of kaolin three, more particularly to one kind can utilize external air pump The device and method of the axle sample of kaolin three is produced, the device can be used for portable air pump to load the processing with lower cost, It is prepared by the sample preparation available for experiments such as kaolin triaxial machining, power cycles.
Background technology
Kaolin is a kind of common clay mineral, preferably, is easily standardized due to its permeability, therefore be widely used in soil In work model test, geotechnical centrifuge test, predominantly where simcity foundation ditch, tunnel, ocean pile foundation, submarine pipeline etc. Cohesive soil stratum.The conventional indoor triaxial test demarcation of its mechanics parameter.Kaolin needs into sampling device by mud to the process into sample, The consolidation device of the similar remoulded clay of its principle.By literature survey, it is found that existing patent focuses primarily upon the weight of general clay The native sample preparation of modeling, such as cool beauty autumn (2015), wealth richness waits (2014), Zhang Xianwei and Kong Lingwei (2012), etc..These manipulated soils What sample preparation facilities had is loaded with counterweight, and some sizes are smaller can not to make soil particle fully flow precipitation, therefore is not suitable for height The preparation of ridge three axle samples of soil.In addition, the external device for thering is special air pressure-loading to prepare the axle sample of kaolin three of going together, such as Wang Y.H.&Siu W.K. (2006), its device materials use the stainless steel of finishing so that installation cost is very high, do not apply to In domestic laboratory.The utility model is intended to prepare on the basis of the axle sample of kaolin three based on foreign countries, by transformation Portion's structure and material, substantially reduce the cost of the axle sample preparation device of kaolin three, while filling up the blank of domestic correlation technique.
Utility model content
The technical problems to be solved in the utility model mainly include it is following some:1) axle of kaolin three that the country is commonly used now Sample preparation device, its loading source is mainly counterweight, and this load mode can not realize the consecutive variations of loading numerical value, may reduce Into the quality of sample.Counterweight is very heavy simultaneously, and causing the mobility of sample preparation device reduces.In addition, counterweight loading cannot be used for The sample preparation device (diameter of the current axle sample of main flow three is 38 millimeters, and counterweight can not be loaded) of minor diameter, and its own weight The load of generation is extremely limited;2) the external axle sample preparation device of kaolin three used is sufficiently expensive, its high accuracy processing used And succinct internal structure greatly improves cost.
The device of the present utility model that the axle sample of kaolin three is produced using external air pump, including Pneumatic controller and It is consolidated into sampling device;
Described Pneumatic controller includes external pneumatic control valve, cylinder, piston rod, wherein, the upper end of piston rod Provided with the piston plate with undercut, it is provided with piston plate in conduction hole, piston plate undercut and is provided with a piece of permeable stone;Control valve is used for Air pressure-loading and unloading in control device;
Described is consolidated into sampling device by transparent plexiglass cylinder outer cover, consolidation cylinder upper cover plate, consolidation cylinder base three Part is constituted, piston rod through consolidation cylinder base with being located in plexiglass cylinder outer cover, plexiglass cylinder outer cover with it is solid Knot cylinder upper cover plate, piston plate, consolidation cylinder base respectively pass through a rubber seal rings for seal;Through hole company is provided with consolidation cylinder upper cover plate Drainage tube is connect, consolidation cylinder upper cover plate is arranged with a piece of permeable stone, being provided with lower conduction hole on consolidation cylinder base is used for external lead The Free water that pipe discharge soil solidifying is produced, passes through some uniform rigid spiral shells between consolidation cylinder upper cover plate, consolidation cylinder base Bar is fastened, and is fixedly connected between consolidation cylinder base and the shell of cylinder by consolidating cylinder cylinder rebound.
Between described piston rod and piston plate, between piston rod and Pneumatic controller, external pneumatic control valve with Between cylinder, rebound and consolidation cylinder base and Pneumatic controller between using waterproof connect.
Described control valve concrete structure is:The through hole of the two-way above and below switching to all the way is provided with valve body, so as to be formed Two-way inlet channel, is provided with sliding block in through hole up and down, and monkey wrench is provided with valve body, and monkey wrench is mutually used in conjunction with sliding block In control slide block movement to realize the open and close to inlet channel, the external air pump of air admission hole of inlet channel, piston rod Lower end by cylinder be divided into above and below two cavitys, the outlet of upper air passage connects with lower chamber of air cylinder body phase, and lower inlet channel goes out Mouth is connected with upper chamber of air cylinder body phase, and being provided with through hole in the not yet bifurcation of inlet channel leads to air.When sliding block is moved to down By the passage plugging in gas passage, external air pressure will enter lower chamber of air cylinder body from upper air passage, and the gas being now passed through makes gas The air pressure of lower part rises in cylinder, promotes piston rod to rise;Conversely, when sliding block is by upper air channel blockage, then gas enters from down Gas passage enters upper chamber of air cylinder body, so as to increase its interior air pressure, moves down piston rod.When spanner is at middle gear, i.e. sliding block When two inlet channels are all blocked inlet channel crotch by above and below, gas can only flow out from the through hole of atmosphere, Now piston rod remains stationary.
The length of the piston rod is more than the height of plexiglass cylinder outer cover.
The pneumatic supply being further applied load to external Pneumatic controller is the positive and negative pressure device of wall-hanging or removable air pump.
The method that the axle sample of kaolin three is produced using above-mentioned device, comprises the following steps:External gas is connected first Pressure, ventilation checks the air-tightness of outside tube, plexiglass cylinder outer cover is put into the undercut of consolidation cylinder base after inspection is errorless On, rubber sealing ring is placed with undercut;
Adjusting control valve pressurizes, stabilized plexiglass cylinder outer cover so that piston rod is moved upwards, when piston rod is reached Behind position on most, the filter paper soaked is placed on the permeable stone of piston plate, adjusting control valve unloading makes piston rod drop down onto most bottom Hold and ensure that filter paper is close to permeable stone simultaneously, then kaolin mud pour into consolidation cylinder to distance consolidation cylinder top~centimetre Stop grouting during place.The filter paper that another soaks is put into the permeable stone surface of upper cover plate, upper cover plate lid to lucite is justified Cylinder outer cover on and use seal with elastometic washer, then penetrate rigid threaded rod, by upper cover plate with consolidate cylinder base tighten, adjusting control valve Pressurization, pushes up piston rod, after mud upper surface is just contacted with the filter paper under upper cover plate, closing control valve causes piston Bar is static to current location;According to the total series and the pressurization size per one-level, adjusting control valve of predetermined consolidation loading Pressurizeed step by step to relevant pressure carry out sample preparation, after the completion of sample preparation, unclamp rigid threaded rod, dismantle upper cover plate, will tried using piston rod Sample pushes away consolidation cylinder.
Preferably it is connected at the enterprising gas port of control valve with air gauge, so as to obtain the load that air pressure is produced in real time. Control valve is by controlling the air pressure of cavity above and below cylinder to promote piston to realize pressurization and device unloading to sample.
There are drainage plate and undercut on piston plate, permeable stone can be placed herein.The water produced during soil solidifying is from drainage plate Aperture outflow, collect in cavity, the pipe outflow then picked out from lower conduction hole, there is undercut upper cover plate bottom and permeable Stone, it is ensured that draining above and below sample.The waterproof of whole device is particularly significant.The water that sample is discharged downwards product above lower conduction hole It is poly-, therefore need to add sealing ring waterproof between piston rod and rebound.Piston plate with piston rod by being threadedly coupled, antirust herein It is more difficult to do and directly contacted with permeable stone, it is therefore desirable to vaseline is often added in screw.In addition, control valve, rebound with The connecting sewing of cylinder is as small as possible, and extra waterproof measure is done if necessary.For the drainability in the upper draining face of increase, it can draw by Flow tube is connected with negative pressure, and the principle of similar vacuum preconsolidation method accelerates consolidation.Due to design cylinder and piston plate it is effective Area (i.e. with kaolinic contact surface) is equal, therefore external barometric reading is without conversion, i.e. consolidation pressure suffered by sample Size.In addition, the processing circularity of plexiglass tent requires higher, otherwise the frictional force between piston plate and cover body can be caused uneven And occur leak, leak the situation of mud.
Compared with prior art, the beneficial effects of the utility model are:
1. the utility model applies consolidation pressure using external air pressure to sample, this kind of pressuring method has advantages below: Continuously adjustable pressure value, it is lighter, removable, available for the sample preparation of small size triaxial test, a collection of sample preparation can be given simultaneously Device pressurizes, and makes full use of the existing device in laboratory, without waste thing etc..
2. the design that plexiglass tent is connected with cylinder is employed, then must finishing according to steel under equal length Work, cost is significantly reduced this programme in comparison, and sample preparation effect meets test requirements document.Consolidation cylinder is made using lucite also There are two advantages, one is that can meet the sample preparation requirement under acid, alkali, salt environment, two be that transparent lucite is conducive to experiment Person observes into the height change situation of sample.
3. improved as of the present utility model, can be by control valve portion by people to realize the full-automation of kaolin sample preparation Industry control system is changed to programme-control, so as to realize standardization sample preparation, reduces the sample preparation error that human factor is produced.
Brief description of the drawings
Fig. 1 is that the utility model can utilize the axle sample preparation device structural representation of kaolin three of external air pump,
Fig. 2 is the concrete structure schematic diagram of control valve in the utility model;
Wherein:Pneumatic controller 1, external pneumatic control valve 1-1, sliding block 1-1-1, through hole 1-1-2, piston rod 1-2, work Seben 1-2-1, conduction hole 1-2-2, permeable stone 1-2-3, plexiglass cylinder outer cover 2-1, rubber seal 2-1-1, consolidation cylinder Upper cover plate 2-2, drainage tube 2-2-1, rigid threaded rod 2-2-2, consolidation cylinder base 2-3, consolidation cylinder-cylinder rebound 2-3-1, under draw Discharge orifice 2-3-2.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, the utility model provides a kind of device that the axle sample of kaolin three is produced using external air pump, bag Include Pneumatic controller 1 and be consolidated into the two parts of sampling device 2, the pneumatic supply being further applied load can be the positive and negative pressure device of wall-hanging or can Mobile air pump.Described Pneumatic controller 1 is made up of external pneumatic control valve 1-1, cylinder, piston rod 1-2.Wherein, cylinder Piston rod 1-2 upper end is made up of the piston plate 1-2-1 with undercut, conduction hole 1-2-2 and permeable stone 1-2-3, piston plate There is a circle rubber seal 2-1-1 on the outside of 1-2-1.Described is consolidated into sampling device 2 by plexiglass cylinder outer cover 2-1, consolidation Cylinder upper cover plate 2-2, the part compositions of consolidation cylinder base 2-3 tri-.Wherein, plexiglass cylinder outer cover 2-1 by upper, middle and lower three at Rubber seal 2-1-1 respectively with consolidation cylinder upper cover plate 2-2, piston plate 1-2-1, consolidation cylinder base 2-3 contact;Consolidate on cylinder Through hole connection drainage tube 2-2-1, consolidation cylinder upper cover plate 2-2 are provided with cover plate 2-2 and is arranged with a piece of permeable stone, at consolidation cylinder bottom Lower conduction hole 2-3-2 is provided with seat 2-3 it is used for external catheter and discharges the Free water that soil solidifying is produced, consolidation cylinder upper cover plate 2-2, Fastened between consolidation cylinder base 2-3 by some uniform rigid threaded rod 2-2-2, the shell of consolidation cylinder base 2-3 and cylinder Between be fixedly connected by consolidating cylinder-cylinder rebound 2-3-1.
It can be aluminum material to be consolidated into sampling device main body, and plexiglass cylinder outer cover 2-1 is made up of polypropylene, transparent Situation of change of the stack shell observable into sample height;The setting of many places rubber seal can guarantee that the top and bottom of consolidation soil sample and consolidate Knot cylinder base is water-tight, leakage mud;Permeable stone 1-2-3 can use permeable metal material, it is ensured that acid, alkaline Pore Solution will not be right Permeable stone produces influence.Between piston rod 1-2 and piston plate 1-2-1, between piston rod 1-2 and Pneumatic controller 1, external gas Between pressure control valve 1-1 and Pneumatic controller 1, rebound 2-3-1 and consolidation cylinder base 2-3 and Pneumatic controller 1 between Connection all need to do water-proofing treatment.
The length of the piston rod 1-2 should be greater than plexiglass cylinder outer cover 2-1 height, it is ensured that soil sample can be with after being made Smoothly release.
As shown in Figure 2:Control valve 1-1 concrete structures are:The through hole of the two-way above and below switching to all the way is provided with valve body, from And two-way inlet channel above and below being formed, sliding block 1-1-1 is provided with through hole, monkey wrench, monkey wrench are provided with valve body It is connected for control slide block movement to realize the open and close to inlet channel, the air admission hole external gas of inlet channel with sliding block Pump, the lower end of piston rod by cylinder be divided into above and below two cavitys, the outlet of upper air passage connects with lower chamber of air cylinder body phase, under enter The outlet of gas passage is connected with upper chamber of air cylinder body phase, and being provided with through hole in the not yet bifurcation of inlet channel leads to air, the through hole The break-make of the through hole can be controlled provided with valve.When sliding block is moved to the passage plugging (shape in such as Fig. 2 in lower inlet channel State), external air pressure will enter lower chamber of air cylinder body from upper air passage, and the gas being now passed through makes to descend part atmospherically in inflator Rise, promote piston rod to rise;Conversely, when sliding block is by upper air channel blockage, then gas enters upper chamber of air cylinder from lower inlet channel Body, so as to increase its interior air pressure, moves down piston rod.When spanner will in inlet channel crotch in middle gear, i.e. sliding block When two inlet channels are all blocked up and down, gas can only flow out from the through hole of atmosphere, now piston rod remains stationary.
The course of work of the present utility model is as follows:After the cleaning of device that last time is made good use of, each part of whole device is point From.External air pressure is connected first, is ventilated, and the air-tightness of outside tube is checked, by outside plexiglass cylinder after inspection is errorless Cover 2-1 is put on consolidation cylinder base 2-3, though being sealed by rubber sealing ring makes malcompression between consolidation cylinder 2-1 and base 2-3 Mud will not be leaked.Adjusting control valve 1-1 pressurizes, i.e., block lower inlet channel, stabilized lucite circle by spanner adjusting slider Cylinder outer cover 2-1 so that piston rod 1-2 is moved upwards, after piston rod reaches the position on most, piston is placed on by the filter paper soaked On the permeable stone 1-2-3 of plate, adjusting control valve causes lower chamber of air cylinder body to unload, and piston rod 1-2 is dropped down onto lowermost end and is protected simultaneously Card filter paper is close to permeable stone, when then kaolin mud is poured into consolidation cylinder 2-1 to distance consolidation cylinder 1~2 centimeters of top Stop grouting.The filter paper that another soaks is put into upper cover plate 2-2 permeable stone surface, upper cover plate 2-2 lids are arrived lucite On cylinder outer cover 2-1 and seal with elastometic washer is used, then penetrates rigid threaded rod 2-2-2, upper cover plate is tightened with consolidation cylinder base, Adjusting control valve pressurizes, and pushes up piston rod, after mud upper surface is just contacted with the filter paper under upper cover plate 2-2, closes Control valve 1-1 causes piston rod 1-2 static to current location;According to total series of predetermined consolidation loading and every one-level Pressurize size, adjusting control valve to relevant pressure pressurizes carry out sample preparation step by step, after the completion of sample preparation, unclamps rigid threaded rod 2-2-2, tears open Upper cover plate 2-2 is unloaded, sample is pushed away into consolidation cylinder using piston rod 1-2.
Only it need to increase consolidation pressure by changing the size of external air pressure in sample making course.Whole sample making course is probably needed 3~5 days are taken, completes into and rigidity long bolt 2-2-2 is unclamped after sample and is taken out, dismantle upper cover plate 2-2, then increase external air pressure Size, consolidation cylinder is pushed away using lift piston rod 1-2 by sample, notices that the process is needed with outside the stabilized plexiglass cylinder of hand Cover 2-1.Take away after soil sample and to dismantle whole sample preparation device completely, finally clean various pieces.

Claims (5)

1. a kind of device that the axle sample of kaolin three is produced using external air pump, it is characterised in that including Pneumatic controller (1) and it is consolidated into sampling device (2);
Described Pneumatic controller (1) includes external pneumatic control valve (1-1), cylinder, piston rod (1-2), wherein, piston rod The upper end of (1-2) is provided with the piston plate (1-2-1) with undercut, piston plate (1-2-1) and is provided with conduction hole (1-2-2), piston A piece of permeable stone is provided with plate (1-2-1) undercut;Control valve (1-1) is used for air pressure-loading and unloading in control device;
Described is consolidated into sampling device (2) by transparent plexiglass cylinder outer cover (2-1), consolidation cylinder upper cover plate (2-2), consolidation Cylinder base (2-3) three part composition, through consolidating, cylinder base (2-3) is same to be located in plexiglass cylinder outer cover to piston rod (1-2) In (2-1), plexiglass cylinder outer cover (2-1) and consolidation cylinder upper cover plate (2-2), piston plate (1-2-1), consolidation cylinder base (2- 3) respectively sealed by a rubber seal (2-1-1);Through hole connection drainage tube (2-2- is provided with consolidation cylinder upper cover plate (2-2) 1), consolidation cylinder upper cover plate (2-2) is arranged with a piece of permeable stone, and lower conduction hole (2-3-2) is provided with consolidation cylinder base (2-3) The Free water that soil solidifying is produced is discharged for external catheter, is led between consolidation cylinder upper cover plate (2-2), consolidation cylinder base (2-3) Cross some uniform rigid threaded rods (2-2-2) fastenings, consolidation cylinder base (2-3) between the shell of cylinder by consolidate cylinder- Cylinder rebound (2-3-1) is fixedly connected.
2. the device according to claim 1 that the axle sample of kaolin three is produced using external air pump, it is characterised in that institute Between the piston rod (1-2) and piston plate (1-2-1) stated, between piston rod (1-2) and Pneumatic controller (1), external air pressure Control valve (1-1) is between cylinder, rebound (2-3-1) and consolidation cylinder base (2-3) and Pneumatic controller (1) between adopt Connected with waterproof.
3. the device according to claim 1 that the axle sample of kaolin three is produced using external air pump, it is characterised in that institute Control valve (1-1) concrete structure stated is:The through hole of the two-way above and below switching to all the way is provided with valve body, so that two above and below being formed Road inlet channel, is provided with sliding block (1-1-1) in through hole, and monkey wrench is provided with valve body, and monkey wrench is connected with sliding block For control slide block movement to realize the open and close to inlet channel, the external air pump of air admission hole of inlet channel, piston rod Lower end by cylinder be divided into above and below two cavitys, the outlet of upper air passage connects with lower chamber of air cylinder body phase, lower inlet channel Outlet is connected with upper chamber of air cylinder body phase, and the through hole (1-1-2) for leading to air is provided with the not yet bifurcation of inlet channel.
4. the device according to claim 1 that the axle sample of kaolin three is produced using external air pump, it is characterised in that institute The length for stating piston rod (1-2) is more than the height of plexiglass cylinder outer cover (2-1).
5. the device according to claim 1 that the axle sample of kaolin three is produced using external air pump, it is characterised in that to The pneumatic supply that external Pneumatic controller is further applied load is the positive and negative pressure device of wall-hanging or removable air pump.
CN201720087145.9U 2017-01-23 2017-01-23 A kind of device that the axle sample of kaolin three is produced using external air pump Expired - Fee Related CN206523343U (en)

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CN201720087145.9U CN206523343U (en) 2017-01-23 2017-01-23 A kind of device that the axle sample of kaolin three is produced using external air pump

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Application Number Priority Date Filing Date Title
CN201720087145.9U CN206523343U (en) 2017-01-23 2017-01-23 A kind of device that the axle sample of kaolin three is produced using external air pump

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109669111A (en) * 2017-10-13 2019-04-23 中国石油天然气股份有限公司 A kind of transformer oil degassing dehydration device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109669111A (en) * 2017-10-13 2019-04-23 中国石油天然气股份有限公司 A kind of transformer oil degassing dehydration device

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