CN106840862B - A kind of true triaxil tester end assembling jig and fixture - Google Patents

A kind of true triaxil tester end assembling jig and fixture Download PDF

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Publication number
CN106840862B
CN106840862B CN201710053786.7A CN201710053786A CN106840862B CN 106840862 B CN106840862 B CN 106840862B CN 201710053786 A CN201710053786 A CN 201710053786A CN 106840862 B CN106840862 B CN 106840862B
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China
Prior art keywords
plate
bottom plate
hexagon socket
triaxil tester
true triaxil
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CN201710053786.7A
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CN106840862A (en
Inventor
余振鹏
黄侨
任政
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Southeast University
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Southeast University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • G01N3/04Chucks
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058Kind of property studied
    • G01N2203/0069Fatigue, creep, strain-stress relations or elastic constants
    • G01N2203/0075Strain-stress relations or elastic constants
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/025Geometry of the test
    • G01N2203/0256Triaxial, i.e. the forces being applied along three normal axes of the specimen
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/04Chucks, fixtures, jaws, holders or anvils
    • G01N2203/0423Chucks, fixtures, jaws, holders or anvils using screws
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/04Chucks, fixtures, jaws, holders or anvils
    • G01N2203/0452Cushioning layer between test piece and grip

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention discloses a kind of true triaxil tester end assembling jig and fixtures, comprising: the transition steel tank includes rectangle bottom plate and three rectangle side plates along the setting of bottom plate side, and bottom plate and side plate are steel plate, and are linked together;The rubber mat plate being affixed with side plate is provided with inside and outside three side plates, hexagon socket head cap screw passes through external rubber mat plate and is connected through a screw thread with place side plate, realizes that three side plate interior sides and true triaxil tester original work move the fixation of head to the pressing force of built-in rubber mat plate by hexagon socket head cap screw;The fixation of the confining pressure load plate of bottom plate and plate outer side is realized by the interior hexagonal fastening bolt on the inside of bottom plate;The loading surface size of confining pressure load plate is determined according to the size and shape of loaded members.The present invention can widen the size and shape limit value of true triaxil tester loaded members, while can be improved the service life and load authenticity of instrument, and structure is simple, easy to assembly, safe and reliable, have good economic engineering effectiveness.

Description

A kind of true triaxil tester end assembling jig and fixture
Technical field
The present invention relates to a kind of true triaxil tester end assembling jig and fixtures, belong to technical field of structural engineering.
Background technique
In the case that true triaxil tester is mainly used for the simulation rock soil body by loading, any junior unit is held in the rock soil body The stress state received, to study under conditions of principal direction of stress is fixed, the relationship and strength characteristics of principal stress and strain, i.e., Soil Constitutive Relation.Sample is generally regular cube, cuboid or cylindrical body, is able to reflect true constitutive relation.State at present Inside and outside related research institutes often carry out the research of true triaxial test to materials such as concrete, react its this related true structure and close System, therefore true triaxil tester has relatively broad application.
Under normal circumstances, the actuation head of true triaxil tester has the loading surface of fixed dimension and shape, load actuation head master There are connection hydraulic servo-machine end, flexural pivot and load end plate, its main feature is that confining pressure can be passed through convenient for being directly used in test Load, directly loads component, obtains the true constitutive relation of component.But its disadvantage is clearly: first, since load is made The loading surface size and shape of dynamic head be it is fixed, if desired the component of different sizes and shapes is loaded, is needed directly Actuation head to be replaced, flexural pivot is remake, action head plate, fabrication cycle is long, and it is costly, and need very high tooling requirement;Its Two, true triaxil tester is larger to the damage of load actuation head due to long-term use, is also easy to produce biggish deformation, easily makes loading surface By cross jamming, the authenticity of load and the use of true triaxil tester are directly affected;Third, when loading different materials component, Since different materials axis rigidity is different, axial deformation is not also identical, in confining pressure loading procedure, the deformation of axially loaded material Greatly, that is, it will lead to the deformation of confining pressure actuation head, if its flexural pivot is unsatisfactory for deformation requirements, being easy, which makes to load actuation head, generates eccentric make With leading to the damage of instrument, while also limiting the use of instrument.
Therefore, those skilled in the art be dedicated to developing a kind of structure it is simple, using and it is easy to maintain, lower-cost true Triaxial apparatus end assembling jig and fixture can widen true triaxil tester under the use premise for guaranteeing the normal reasonable benefit/risk of true triaxil tester The size and shape limit value of loaded members, while can be improved the service life of instrument.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of true triaxil tester end assembly Formula fixture has the characteristics that structure is simple, easy for installation, cost is relatively low, can widen the sizes of true triaxil tester loaded members with Shape limit value, while can be improved the service life and load authenticity of instrument, it is safe and reliable.
Technical solution: to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of true triaxil tester end assembling jig and fixture, including confining pressure load plate and transition steel tank, and confining pressure load plate passes through Transition steel tank is installed on true triaxil tester original work and moves on head;
Wherein, the transition steel tank include rectangle bottom plate and along bottom plate side setting three rectangle side plates, it is described Bottom plate and side plate are steel plate, and are linked together;It is provided with the rubber mat plate being affixed with side plate inside and outside three side plates, And several hexagon socket head cap screws are provided on three side plates;Hexagon socket head cap screw passes through external rubber mat plate and passes through with place side plate It is threadedly coupled, three side plate interior sides and true triaxil tester original work is realized to the pressing force of built-in rubber mat plate by hexagon socket head cap screw The fixation of dynamic head;
Several interior hexagonal fastening bolts are provided on the inside of the transition steel tank bottom plate, and real by interior hexagonal fastening bolt The fixation of the confining pressure load plate of existing bottom plate and plate outer side;The shape size of the outside loading surface of the confining pressure load plate and load The shape size of component is adapted.
Preferably, the head of the hexagon socket head cap screw is provided with square rubber gasket, and square rubber gasket with it is external Spring is arranged on hexagon socket head cap screw between rubber mat plate.By spring elongation adjust peripheral hexagon socket head cap screw position and Highly, to guarantee the installation accuracy of true triaxil tester end assembling jig and fixture;Square rubber gasket be mainly used for buffer spring with The interaction of hexagon socket head cap screw, compatible deformation.
Specifically, the hexagon socket head cap screw quantity on two side plates being oppositely arranged on the bottom plate is three, and another Hexagon socket head cap screw quantity on a side plate is two.
Specifically, the quantity of the interior hexagonal fastening bolt on the inside of the bottom plate is four, and it is in distributed rectangular, constitutes a square Four vertex of shape.
The utility model has the advantages that a kind of true triaxil tester end assembling jig and fixture provided by the invention, compared with the existing technology, have with Lower advantage: 1, it only needs to replace confining pressure load plate according to the geomery of different loaded members, has effectively widened true triaxil tester and added The size and shape limit value of mount components, is substantially more utilized true triaxil tester;2, the deformation of confining pressure actuation head when instrument loads The flexural pivot that head can be not only moved by original work is alleviated, while the effective deformation of built-in rubber backing plate also alleviates greatly instrument and encloses very much The deformation for pressing actuation head, greatly enhances the service life of instrument;3, structure is simple, easy to assembly, and cost is relatively low, and It is safe and reliable, the coup injury of former instrument actuation head is shifted in replaceable confining pressure load plate, instrument is effectively increased The service life of device has good economic engineering effectiveness.
Detailed description of the invention
Fig. 1 is a kind of main view of true triaxil tester end of the invention assembling jig and fixture;
Fig. 2 is a kind of left view of true triaxil tester end of the invention assembling jig and fixture;
Fig. 3 is a kind of top view of true triaxil tester end of the invention assembling jig and fixture;
It include: 1, confining pressure load plate, 2, transition steel tank, 3, rubber mat plate, 4, hexagon socket head cap screw, 5, the fastening of interior hexagonal in figure Bolt, 6, square rubber gasket, 7, spring.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
It is as shown in Figure 1, 2, 3 a kind of true triaxil tester end assembling jig and fixture, which is characterized in that including confining pressure load plate 1 And transition steel tank 2, and confining pressure load plate 1 is installed on true triaxil tester original work by transition steel tank 2 and moves on head;
Wherein, the transition steel tank 2 is described including rectangle bottom plate and along three rectangle side plates of bottom plate side setting Bottom plate and side plate are steel plate, and are linked together;The rubber mat plate being affixed with side plate is provided with inside and outside three side plates 3, and several hexagon socket head cap screws 4 are provided on three side plates;Hexagon socket head cap screw 4 pass through external rubber mat plate 3 and with place side Plate is connected through a screw thread, and three side plate interior sides and true three are realized to the pressing force of built-in rubber mat plate 3 by hexagon socket head cap screw 4 Axis instrument original work move the fixation of head;
It is provided with several interior hexagonal fastening bolts 5 on the inside of 2 bottom plate of transition steel tank, and passes through interior hexagonal fastening bolt 5 realize the fixation of the confining pressure load plate 1 of bottom plate and plate outer side;The shape size of the outside loading surface of the confining pressure load plate 1 It is adapted with the shape size of loaded members.
In the present embodiment, the head of the hexagon socket head cap screw 4 is provided with square rubber gasket 6, and square rubber gasket 6 Spring 7 is arranged on hexagon socket head cap screw 4 between external rubber mat plate 3.
In the present embodiment, 4 quantity of hexagon socket head cap screw on two side plates being oppositely arranged on the bottom plate is three, and 4 quantity of hexagon socket head cap screw on another side plate is two;The quantity of interior hexagonal fastening bolt 5 on the inside of the bottom plate is four It is a, and be in distributed rectangular, constitute four vertex of a rectangle.
A specific embodiment of the invention is as follows:
The compatible confining pressure load plate 1 of loading surface is selected according to the geomery of loaded members when use, and passes through four Interior hexagonal fastening bolt 5 realizes the fixation of transition steel tank 2 and confining pressure load plate 1;Rubber pad is respectively set in three side plate interior sides Transition steel tank 2 is then placed on the dynamic head of true triaxil tester original work and is adjacent to by plate 3;Rubber is respectively set on the outside of three side plates Hexagon socket head cap screw 4 is then sequentially passed through square rubber gasket 6 and spring 7 is screwed in and has been mounted on true triaxil tester original work and moves by backing plate 3 On 2 side plate of transition steel tank on head;Position and the height for adjusting 2 outside hexagon socket head cap screw 4 of transition steel tank, pass through the change of spring 7 Shape amount observes the installation site and installation accuracy of true triaxil tester end assembling jig and fixture component.
In the present invention, the loading surface size of confining pressure load plate can be determined according to the size and shape of loaded members, it is ensured that Its energy normal load is on component;The size design transition steel tank size of head is moved according to true triaxil tester original work simultaneously, and is designed The threaded hole of hexagon socket head cap screw and interior hexagonal fastening bolt on transition steel tank;It is set by the size of transition steel tank and hexagon socket head cap screw Rubber mat plate size is counted, three side plate interior sides on transition steel tank are individually positioned in.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (4)

1. a kind of true triaxil tester end assembling jig and fixture, which is characterized in that including confining pressure load plate (1) and transition steel tank (2), and Confining pressure load plate (1) is installed on true triaxil tester original work by transition steel tank (2) and moves on head;
Wherein, the transition steel tank (2) includes rectangle bottom plate and three rectangle side plates along the setting of bottom plate side, the bottom Plate and side plate are steel plate, and are linked together;The rubber mat plate being affixed with side plate is provided with inside and outside three side plates (3), it and on three side plates is provided with several hexagon socket head cap screws (4);Hexagon socket head cap screw (4) pass through external rubber mat plate (3) and It is connected through a screw thread with place side plate, three sides is realized to the pressing force of built-in rubber mat plate (3) by hexagon socket head cap screw (4) The fixation of head is moved on the inside of plate with true triaxil tester original work;
It is provided with several interior hexagonal fastening bolts (5) on the inside of transition steel tank (2) bottom plate, and passes through interior hexagonal fastening bolt (5) fixation of the confining pressure load plate (1) of bottom plate and plate outer side is realized;The shape of the outside loading surface of the confining pressure load plate (1) Shape size is adapted with the shape size of loaded members.
2. a kind of true triaxil tester end assembling jig and fixture according to claim 1, which is characterized in that the hexagon socket head cap screw (4) head is provided with square rubber gasket (6), and interior six between square rubber gasket (6) and external rubber mat plate (3) Spring (7) are arranged on corner bolt (4).
3. a kind of true triaxil tester end assembling jig and fixture according to claim 1, which is characterized in that opposite on the bottom plate Hexagon socket head cap screw (4) quantity on two side plates being arranged is three, and hexagon socket head cap screw (4) quantity on third side plate It is two.
4. a kind of true triaxil tester end assembling jig and fixture according to claim 1, which is characterized in that on the inside of the bottom plate The quantity of interior hexagonal fastening bolt (5) is four, and is in distributed rectangular, constitutes four vertex of a rectangle.
CN201710053786.7A 2017-01-24 2017-01-24 A kind of true triaxil tester end assembling jig and fixture Active CN106840862B (en)

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CN201710053786.7A CN106840862B (en) 2017-01-24 2017-01-24 A kind of true triaxil tester end assembling jig and fixture

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Application Number Priority Date Filing Date Title
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CN106840862B true CN106840862B (en) 2019-06-25

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106840862B (en) * 2017-01-24 2019-06-25 东南大学 A kind of true triaxil tester end assembling jig and fixture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101764462A (en) * 2010-01-27 2010-06-30 王伟青 Elastic buffer thrust end at top end of micro-motor rotor worm shaft
CN103471908A (en) * 2013-09-24 2013-12-25 国家电网公司 Clamping device
CN106018100A (en) * 2016-07-06 2016-10-12 山东大学 Multifunctional true-triaxial rock drilling test system
CN106840862A (en) * 2017-01-24 2017-06-13 东南大学 A kind of true triaxil tester termination assembling jig and fixture

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101764462A (en) * 2010-01-27 2010-06-30 王伟青 Elastic buffer thrust end at top end of micro-motor rotor worm shaft
CN103471908A (en) * 2013-09-24 2013-12-25 国家电网公司 Clamping device
CN106018100A (en) * 2016-07-06 2016-10-12 山东大学 Multifunctional true-triaxial rock drilling test system
CN106840862A (en) * 2017-01-24 2017-06-13 东南大学 A kind of true triaxil tester termination assembling jig and fixture

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