CN211955021U

CN211955021U - Better triaxial confined pressure chamber of stability and suitability

Info

Publication number: CN211955021U
Application number: CN202020678964.2U
Authority: CN
Inventors: 张玉梅; 孟祥廪; 孙鹏龙; 郑文焕
Original assignee: Changchun New Testing Machine Co ltd
Current assignee: Changchun New Testing Machine Co ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-11-17
Anticipated expiration: 2030-04-28

Abstract

The utility model discloses a better triaxial confining pressure room of stability and suitability, the on-line screen storage device comprises a base, the outside of base is provided with telescopic ring, telescopic ring's the outside is provided with the snap ring, telescopic ring's upper end is provided with the barrel, the bottom of barrel is in the same place with the top swing joint of base. The utility model discloses in, triaxial confining pressure room must be installed on the clamp plate that has the wheel, can walk on the track, push away people or release compression space of compression testing machine, axial stress is applyed by compression testing machine, enclose to exert by the indoor high-pressure oil of confining pressure to the stress, triaxial compression testing just goes on under the axial and the circumstances of enclosing to synchronous applied stress, detect the rock, the all-round stress-bearing capacity of concrete test body, at the radial extensometer of the internally mounted of barrel and axial extensometer, can make deformation measurement synchronous, install balanced piston in the upper end of barrel, thereby make from top to bottom receive peer corresponding in and be in quiescent condition through balanced piston.

Description

Better triaxial confined pressure chamber of stability and suitability

Technical Field

The utility model relates to a triaxial confining pressure room field especially relates to a better triaxial confining pressure room of stability and suitability.

Background

Although the time for producing the triaxial testing machine in China is long, the time for applying the computer technology is short, so that the manufacture of a triaxial confining pressure chamber mostly continues to use the original design or only small local improvement, and the triaxial confining pressure chamber basically has no self-balance property; substantially free of compression balance adjustment means; and a rock extensometer is not installed in the confining pressure chamber, deformation data is separately measured outdoors, and the like.

The three-axis tester produced in China at present has two types, one type is a true three-axis tester, and is test equipment for synchronously applying stress to the x, y and z directions of a test body, the tester has high technical requirements and expensive price, and the supply and demand of the market at present are very small; the other test device is commonly called a pseudo-triaxial test machine, and is a test device for synchronously applying stress to the axial direction and the peripheral direction of a test body, the test machine has a long production history in China, and the price is easy to accept by customers, so the pseudo-triaxial test machine is a main body of market supply and demand, a triaxial confining pressure chamber is key equipment of the pseudo-triaxial test machine, and the triaxial confining pressure chamber is continuously improved in the production process, so that the stability and the applicability of the triaxial confining pressure chamber are more ideal, and therefore a triaxial confining pressure chamber with better stability and applicability is needed to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a triaxial confining pressure chamber with better stability and applicability.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a better triaxial confined pressure chamber of stability and suitability, includes the base, the outside of base is provided with telescopic ring, telescopic ring's the outside is provided with the snap ring, telescopic ring's upper end is provided with the barrel, the bottom of barrel is in the same place with the top swing joint of base.

As a further description of the above technical solution:

the top of the cylinder body is provided with a balance piston, the outer side of the upper end of the balance piston is mechanically connected with the inner side of the screw gland, and the bottom of the screw gland is provided with a sealing ring.

As a further description of the above technical solution:

the bottom of the balance piston is mechanically connected with the top of the upper pressure head, and the side surface of the upper pressure head is mechanically connected with the inner side of the wedge-shaped measuring ring.

As a further description of the above technical solution:

the bottom end of the upper pressure head is fixedly connected with the top of the test piece, and the bottom of the test piece is provided with a lower seat.

As a further description of the above technical solution:

the top of base and the top swing joint of lower seat are in the same place, the left side of lower seat is provided with radial extensometer, the right side of lower seat is provided with the axial extensometer.

The utility model discloses following beneficial effect has:

1. the utility model discloses, at barrel internally mounted balance piston, make from top to bottom receive the equivalent relative stress and be in quiescent condition through balance piston.

2. The utility model discloses, be provided with the sphere in the upper end of last pressure head to support through the sphere that increases and to make the test piece atress balanced.

3. The utility model discloses, at barrel internally mounted radial extensometer and axial extensometer for can warp the measurement synchronism, be convenient for detect more.

Drawings

Fig. 1 is a front view of a triaxial confining pressure chamber with better stability and applicability provided by the present invention;

fig. 2 is a front sectional view of a triaxial confining pressure chamber with better stability and applicability provided by the present invention;

fig. 3 is the utility model provides a better extensometer schematic diagram in triaxial confining pressure room of stability and suitability.

Illustration of the drawings:

1. a base; 2. a snap ring; 3. a sleeve-type ring; 4. a lower seat; 5. a barrel; 6. a test piece; 7. an upper pressure head; 8. a balance piston; 9. a seal ring; 10. a screw gland; 11. a wedge-shaped measuring ring; 12. a radial extensometer; 13. an axial extensometer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a better triaxial confined pressure chamber of stability and suitability, includes base 1, and the outside of base 1 is provided with telescopic ring 3, and telescopic ring 3's the outside is provided with snap ring 2, and telescopic ring 3's upper end is provided with barrel 5, and the bottom of barrel 5 is in the same place with base 1's top swing joint.

The top of barrel 5 is provided with balance piston 8, the upper end outside of balance piston 8 is in the same place with screw gland 10's inboard mechanical connection, screw gland 10's bottom is provided with sealing ring 9, balance piston 8's bottom is in the same place with the top mechanical connection of last pressure head 7, the side of going up pressure head 7 is in the same place with the inboard mechanical connection of wedge measurement ring 11, the bottom of going up pressure head 7 is in the same place with the top fixed connection of test piece 6, the bottom of test piece 6 is provided with lower seat 4, the top of base 1 is in the same place with the top swing joint of lower seat 4, the left side of lower seat 4 is provided with radial extensometer 12, the right side of lower seat 4 is provided with axial extens.

The working principle is as follows: the pressure-bearing annular area in the upper balance cavity of the balance piston 8 is equal to the pressure-bearing annular area in the lower confining pressure cavity, the upper end of a contact rod of the axial extensometer 13 is in contact with the inclined plane of the wedge-shaped measuring ring 11 outside the pressure head, in the stress deformation process of the test body, the contact rod outwards expands under the action of the inclined plane, the axial extensometer 13 sends out a deformation signal, meanwhile, a horizontal contact rod is installed at the upper end of the contact rod of the radial extensometer 12, the front end of the contact rod is in contact with the middle of the test piece 6, in the process that the test piece 6 is subjected to a compression force, the middle expands to push the upper end of the contact rod to outwards expand, and the radial extensometer 12 sends out a.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a better triaxial confining pressure room of stability and suitability, includes base (1), its characterized in that: the outer side of the base (1) is provided with a sleeve type ring (3), the outer side of the sleeve type ring (3) is provided with a snap ring (2), the upper end of the sleeve type ring (3) is provided with a cylinder body (5), and the bottom of the cylinder body (5) is movably connected with the top of the base (1).

2. A more stable and adaptable triaxial confining pressure chamber according to claim 1, wherein: the top of barrel (5) is provided with balanced piston (8), the inboard mechanical connection of the upper end outside and screw gland (10) of balanced piston (8) is in the same place, the bottom of screw gland (10) is provided with sealing ring (9).

3. A more stable and adaptable triaxial confining pressure chamber according to claim 2, wherein: the bottom of the balance piston (8) is mechanically connected with the top of the upper pressure head (7), and the side surface of the upper pressure head (7) is mechanically connected with the inner side of the wedge-shaped measuring ring (11).

4. A more stable and adaptable triaxial confining pressure chamber according to claim 3, wherein: the bottom end of the upper pressure head (7) is fixedly connected with the top of the test piece (6), and the bottom of the test piece (6) is provided with a lower seat (4).

5. A more stable and adaptable triaxial confining pressure chamber according to claim 1, wherein: the top of base (1) is in the same place with the top swing joint of lower seat (4), the left side of lower seat (4) is provided with radial extensometer (12), the right side of lower seat (4) is provided with axial extensometer (13).