CN101936844B - Triaxial suspended pressure chamber - Google Patents
Triaxial suspended pressure chamber Download PDFInfo
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- CN101936844B CN101936844B CN201010238291XA CN201010238291A CN101936844B CN 101936844 B CN101936844 B CN 101936844B CN 201010238291X A CN201010238291X A CN 201010238291XA CN 201010238291 A CN201010238291 A CN 201010238291A CN 101936844 B CN101936844 B CN 101936844B
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- pressure chamber
- sleeve
- base
- pressure rod
- foundation ring
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Abstract
The invention discloses a triaxial suspended pressure chamber. The connection foundation ring and the base of the triaxial suspended pressure chamber are connected or separated by a connection sleeve with an internal screw; and compared with the connection mode of symmetrical bolts adopted by the connection foundation ring and the base of the existing triaxial suspended pressure chamber, the rotary operation of the connection sleeve is simple and quick and can ensure the uniformity and the tightness of all-direction joint degree of the connection foundation ring and the base of the pressure chamber. The triaxial suspended pressure chamber takes a pressurized rod as an axis to move up and down; during upgoing operation, the oriented sealing sleeve of the pressure chamber is suspended and connected with a suspended sleeve so as to change the existing operation mode that the pressure chamber moves in or out of the test bed, thus saving labor, and avoiding falling accidents when the pressure chamber moves in or out. The invention has the outstanding advantages of reasonable structure and simple operation, lightens labor intensity and is favorable for improving test efficiency.
Description
Technical field
The invention belongs to the geotechnical mechanics test and use triaxial apparatus, particularly relate to a kind of suspension type pressure chamber of triaxial apparatus.
Background technology
The pressure chamber of triaxial apparatus be the soil property sample is installed, to the primary structure of sample loading with the control draining.The composition of existing pressure chamber comprises that the flange form metal connects the end cap at foundation ring, the transparent stack shell that is fixed in this connection foundation ring and stack shell top, is positioned at the pilot seal cover at end cap center and is engaged in the pressure rod that this pilot seal is overlapped, and the pressure rod upper end links with the axial force take-off lever of loading system.Pressure chamber's end cap also is provided with switch valve.
Pressure chamber in the process of the test is connected with the bolt of the base that is supported on testing table up-down main shaft by 3 symmetrical distributions; The soil property sample is installed in the pressure chamber before the test or the test back is shifted out from the pressure chamber in the operation of soil property sample, the pressure chamber that comprises pressure rod is connected or separates with base as a whole parts and moves into or shift out testing table.
There is following open defect in the operation that is connected or separates and move into or shift out testing table of above-mentioned pressure chamber and base:
1, the flange form metal of pressure chamber connects the foundation ring and is connected fixed form with the bolt of base and makes both connections or lock out operation very loaded down with trivial details; Particularly attended operation also requires the tightening degree of 3 bolts uniformity of trying one's best, otherwise will influence the sealing of pressure chamber and cause test failure.
2, existing pressure chamber structure has suitable weight, shifts out or move into not only effort but also have the hidden danger of falling damage of testing table.
Summary of the invention
The present invention is for being connected with base of solving that existing pressure chamber exists or lock out operation is loaded down with trivial details, the difficult control of sealing after connecting, shift out or move into that testing table is required great effort and unsafe technical matters and disclose a kind of suspension type pressure chamber of triaxial apparatus.
The present invention takes following technical scheme for realizing above-mentioned purpose: this suspension type pressure chamber comprises portal frame; The transparent stack shell of axial force loading system, up-down main shaft, pressure chamber, be fixed in the end cap at transparent stack shell top and be installed on the switch valve of end cap; Characteristic is; The pressure chamber is provided with the base that is fixed in testing table up-down main shaft, and the periphery of said base is provided with the adapter sleeve on the inner edge of band that is threaded with it, and this adapter sleeve is inner along three recesses that are provided with symmetrical distribution; The bottom of said transparent stack shell is fixed with and connects the foundation ring; The outer bead of this connection foundation ring is provided with inner along three three convexities that recess is corresponding with adapter sleeve, engages with being connected each raised surface of foundation ring along the bottom surface for its inner of adapter sleeve that screws under the rotary state with respect to base, connects between foundation ring and the pressure chamber's base to be provided with elastic seal ring; Said end cap center fixation has the pilot seal cover; Be provided with the pressure rod that the upper end is connected in the axial force loading system in the sealing cover, pressure rod and pilot seal cover are slidingly matched, and pilot seal is arranged with the O-ring seal that acts on pressure rod; The both sides upright supports of said portal frame has the intermediate transverse girder that is positioned at axial force loading system below; Intermediate transverse girder is fixed with the sleeve of hanging that is set in pressure rod, saidly hangs two double wedges that the inboard of mouth at the bottom of the sleeve is provided with symmetry, the top of said pilot seal cover be provided with hang sleeve at the bottom of mouth embed the link plate that engages; This link plate is provided with and hangs the corresponding groove of two double wedges of mouth at the bottom of the sleeve, the groove of link plate pass through hang sleeve at the bottom of in the mouth double wedge under the condition of rotation pressure chamber the link plate bottom surface engage with the double wedge upper surface.
The present invention can also take following technical measures:
Said base is connected with testing table up-down spindle thread, is provided with in the radially screw of base one side to be engaged in the dog screw of up-down main spindle table over glaze to groove.
The interlude of said pressure rod is provided with reducing and tiltedly takes on, and reducing is tiltedly takeed on above pressure rod diameter less than the pressure rod diameter below the oblique shoulder of reducing.
The said sleeve inboard of hanging is arranged with the pressure rod sliding joint and makes pressure rod positioning boss placed in the middle.
The said sleeve of hanging is threaded with the radially screw of intermediate transverse girder, hangs sleeve and is provided with the thread-locking ring that makes it to be stable at intermediate transverse girder.
Beneficial effect of the present invention is with advantage: be connected foundation ring and the base of the suspension type pressure chamber of this triaxial apparatus adopt the adapter sleeve that is threaded to be connected or to separate, and the connected mode that the more existing triaxial apparatus pressure chamber flange form connection of the rotary manipulation of adapter sleeve foundation ring and base adopt symmetrical bolt is simple and fast but also can guarantee that the pressure chamber is connected the homogeneity and the sealing of foundation ring and each orientation degree of engagement of base not only.The suspension type pressure chamber of this triaxial apparatus is that axle moves up and down with the pressure rod; When up the pilot seal cover of pressure chamber can with hang sleeve and hang and be connected; Thereby changed the mode of operation that existing pressure chamber shifted out or moved into testing table, not only laborsaving also can avoid the pressure chamber shift out or migration process in take place fall the damage accident.That the present invention has is rational in infrastructure, simple to operate, reduce labor intensity and help improving the outstanding advantage of test efficiency.
Description of drawings
Accompanying drawing 1 is the example structure synoptic diagram.
Accompanying drawing 3 is three recess synoptic diagram that adapter sleeve is symmetrically distributed.
Accompanying drawing 4 is to connect three bump diagrams that the foundation ring is symmetrically distributed.
Accompanying drawing 6 is that Fig. 5 A is to view.
Accompanying drawing 8 is link plate groove distribution schematic diagrams.
Accompanying drawing 9 is pressure chamber's structural representations when hanging state.
Reference numeral: 1 portal frame, 2 axial force loading systems, 3 hang sleeve, 3-1 thread-locking ring, 3-2 double wedge, 3-3 positioning boss; 4 intermediate transverse girders, 5 pressure rods, the 5-1 reducing is tiltedly takeed on, 6 pilot seal covers, 6-1 link plate, 6-2 O-ring seal; The 6-3 groove, 7 end caps, 8 transparent stack shells, 9 connection foundation rings, 9-1 is protruding; 10 adapter sleeves, the inner edge of 10-1,10-2 recess, 11 bases, 11-1 wall pressure passage; The 11-2 elastic seal ring, 11-3 circular orientation boss, 12 up-down main shafts, 12-1 axial notch, 13 dog screws.
Embodiment
Further specify the present invention below in conjunction with embodiment and accompanying drawing thereof.
Like Fig. 1,2 illustrated embodiments, the pressure chamber of present embodiment comprises transparent stack shell 8, is fixed in the end cap 7 at transparent stack shell top, the bottom of the pilot seal cover 6 that the end cap center is threaded fixing, the switch valve (not shown) that is installed on end cap and transparent stack shell 8 is threaded and be fixedly coupled foundation ring 9.
The base 11 with above-mentioned pressure chamber is connected or separates of present embodiment is fixed in testing table up-down main shaft 12, and concrete connected mode is referring to Fig. 2.Among Fig. 2, base 11 is threaded with testing table up-down main shaft 12, is provided with in the radially screw of base 11 1 sides to be engaged in the dog screw 13 of up-down main spindle table over glaze to groove 12-1.This connected mode can guarantee that base 11 only does vertical displacement movement with the up-down main shaft and avoid its rotation.Structure in the base 11 is identical with existing base, only shows wall pressure passage 11-1 among Fig. 2.
Like Fig. 1,2,3,4 illustrated embodiments, the periphery of base 11 is provided with band the inner of being threaded with it adapter sleeve 10 along 10-1, and this adapter sleeve is inner along three recess 10-2 that are provided with symmetrical distribution.The outer bead of the connection foundation ring 9 of pressure chamber is provided with adapter sleeve 10 inner along three corresponding three protruding 9-1 of recess 10-2.Engage with the surface that is connected foundation ring 9 each protruding 9-1 for the bottom surface of adapter sleeve 10 its inners under the screw-in rotary state with respect to base along 10-1; Connect between foundation ring and the pressure chamber's base and be provided with elastic seal ring 11-2; Base 11 also is provided with and acts on the circular orientation boss 11-3 that connects the foundation ring, and elastic seal ring 11-2 is identical with the understructure of prior art with circular orientation boss 11-3.Realized connecting the foundation ring when rotateing in place when adapter sleeve 10 screw-ins and fixed with being connected of pressure chamber's base, the screw-in of adapter sleeve 10 rotates and makes connection foundation ring 9 each one stressed even simultaneously, therefore can guarantee the sealing that the pressure chamber engages with base.
Like Fig. 1,5,6 illustrated embodiments; The both sides upright supports of portal frame 1 has the intermediate transverse girder 4 that is positioned at axial force loading system 2 belows; The radially screw of intermediate transverse girder be threaded be fixed be set in pressure rod 5 hang sleeve 3, hang sleeve and be provided with the thread-locking ring 3-1 that makes it to be stable at intermediate transverse girder.
The inboard of hanging 3 end of sleeve mouth is provided with two double wedge 3-2 of symmetry, also is arranged with pressure rod 5 sliding joint and makes pressure rod positioning boss 3-3 placed in the middle.
Like Fig. 1,7,8 illustrated embodiments; Pilot seal is overlapped 6 screw threads and is fixed in end cap 7 centers; Pressure rod 5 upper ends in the pilot seal cover are connected in axial force loading system 2; The lower end is goed deep in the pressure chamber, and pressure rod 5 is slidingly matched with the pilot seal cover, and pilot seal is arranged with the O-ring seal 6-2 that acts on pressure rod.The top of pilot seal cover is provided with Fig. 5 and hangs the link plate 6-1 that the mouth embedding of 3 end of sleeve engages; This link plate is provided with the corresponding groove 6-3 of two double wedge 3-2 that hangs 3 end of sleeve mouth with Fig. 6; The groove 6-3 of link plate upwards pass through hang sleeve at the bottom of behind the mouth double wedge 3-2; The rotation pressure chamber makes link plate 6-1 bottom surface engage with double wedge 3-2 upper surface, and the pressure chamber of this moment is the state of hanging shown in Figure 9.
Pressure chamber among Fig. 9 comprises transparent stack shell 8, end cap 7, pilot seal cover 6, connect foundation ring 9 and be installed on the switch valve (not shown) of end cap.The pressure chamber is the soil property sample charge and discharge operations that can carry out when hanging state on the base.Any direction rotary steering sealing shroud also makes the groove 6-3 of link plate 6-1 pass through the double wedge 3-2 that hangs sleeve downwards, can make the link plate disengaging of pilot seal cover hang sleeve, and the pressure chamber will serve as to be advanced into duty under the axle with pressure rod 5.
Like Fig. 1,9 illustrated embodiments, the interlude of pressure rod 5 is provided with reducing and tiltedly takes on 5-1, and reducing is tiltedly takeed on above pressure rod diameter less than the pressure rod diameter below the oblique shoulder of reducing.When the pressure chamber when duty changes Fig. 9 into and hangs state, the reducing tiltedly above pressure rod of shoulder can reduce the pressure chamber and promotes resistance.When state-transition is hung when Fig. 1 duty from Fig. 9 by the pressure chamber; Pilot seal cover 6 and O-ring seal thereof will tiltedly be takeed on 5-1 with the reducing of pressure rod 5 and contact and produce damping; Play the effect that slows down pressure chamber's decline rate, the damage of avoiding pressure chamber's free-falling to cause.
Claims (5)
1. the suspension type pressure chamber of a triaxial apparatus; Comprise portal frame; The transparent stack shell of axial force loading system, up-down main shaft, pressure chamber, be fixed in the end cap at transparent stack shell top and be installed on the switch valve of end cap; It is characterized in that: the pressure chamber is provided with the base that is fixed in testing table up-down main shaft, and the periphery of said base is provided with the adapter sleeve on the inner edge of band that is threaded with it, and this adapter sleeve is inner along three recesses that are provided with symmetrical distribution; The bottom of said transparent stack shell is fixed with and connects the foundation ring; The outer bead of this connection foundation ring is provided with inner along three three convexities that recess is corresponding with adapter sleeve, engages with being connected each raised surface of foundation ring along the bottom surface for its inner of adapter sleeve that screws under the rotary state with respect to base, connects between foundation ring and the pressure chamber's base to be provided with elastic seal ring; Said end cap center fixation has the pilot seal cover; Be provided with the pressure rod that the upper end is connected in the axial force loading system in the sealing cover, pressure rod and pilot seal cover are slidingly matched, and pilot seal is arranged with the O-ring seal that acts on pressure rod; The both sides upright supports of said portal frame has the intermediate transverse girder that is positioned at axial force loading system below; Intermediate transverse girder is fixed with the sleeve of hanging that is set in pressure rod, saidly hangs two double wedges that the inboard of mouth at the bottom of the sleeve is provided with symmetry, the top of said pilot seal cover be provided with hang sleeve at the bottom of mouth embed the link plate that engages; This link plate is provided with and hangs the corresponding groove of two double wedges of mouth at the bottom of the sleeve, the groove of link plate pass through hang sleeve at the bottom of in the mouth double wedge under the condition of rotation pressure chamber the link plate bottom surface engage with the double wedge upper surface.
2. suspension type according to claim 1 pressure chamber is characterized in that: said base is connected with testing table up-down spindle thread, is provided with in the radially screw of base one side to be engaged in the dog screw of up-down main spindle table over glaze to groove.
3. suspension type according to claim 1 pressure chamber is characterized in that: the interlude of said pressure rod is provided with reducing and tiltedly takes on, and reducing is tiltedly takeed on above pressure rod diameter less than the pressure rod diameter below the oblique shoulder of reducing.
4. suspension type according to claim 1 pressure chamber is characterized in that: the said sleeve inboard of hanging is arranged with the pressure rod sliding joint and makes pressure rod positioning boss placed in the middle.
5. suspension type according to claim 1 pressure chamber is characterized in that: the said sleeve of hanging is threaded with the radially screw of intermediate transverse girder, hangs sleeve and is provided with the thread-locking ring that makes it to be stable at intermediate transverse girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010238291XA CN101936844B (en) | 2010-07-28 | 2010-07-28 | Triaxial suspended pressure chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010238291XA CN101936844B (en) | 2010-07-28 | 2010-07-28 | Triaxial suspended pressure chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101936844A CN101936844A (en) | 2011-01-05 |
| CN101936844B true CN101936844B (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010238291XA Active CN101936844B (en) | 2010-07-28 | 2010-07-28 | Triaxial suspended pressure chamber |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830060B (en) * | 2012-08-23 | 2015-07-22 | 铁道第三勘察设计院集团有限公司 | Multifunctional rock expansion tester |
| CN106680076A (en) * | 2016-11-21 | 2017-05-17 | 江苏亨通光电股份有限公司 | Edgewise compressive testing device of loose tube for optical cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4825700A (en) * | 1988-06-15 | 1989-05-02 | Regents Of The University Of Minnesota | Bi-axial geomaterial test system |
| CN1641350A (en) * | 2005-01-07 | 2005-07-20 | 清华大学 | Large-sized multifunction material three-shaft static-dynamic test machine |
| CN201193998Y (en) * | 2008-02-19 | 2009-02-11 | 水利部交通部电力工业部南京水利科学研究院 | Vibration three-axis determinator with confined pressure stabilizing compensator |
| CN201754133U (en) * | 2010-07-28 | 2011-03-02 | 铁道第三勘察设计院集团有限公司 | Hanging type pressure chamber of tri-axial apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0735663A (en) * | 1993-07-19 | 1995-02-07 | Fujita Corp | Apparatus for three-axial compression test in situ |
-
2010
- 2010-07-28 CN CN201010238291XA patent/CN101936844B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4825700A (en) * | 1988-06-15 | 1989-05-02 | Regents Of The University Of Minnesota | Bi-axial geomaterial test system |
| CN1641350A (en) * | 2005-01-07 | 2005-07-20 | 清华大学 | Large-sized multifunction material three-shaft static-dynamic test machine |
| CN201193998Y (en) * | 2008-02-19 | 2009-02-11 | 水利部交通部电力工业部南京水利科学研究院 | Vibration three-axis determinator with confined pressure stabilizing compensator |
| CN201754133U (en) * | 2010-07-28 | 2011-03-02 | 铁道第三勘察设计院集团有限公司 | Hanging type pressure chamber of tri-axial apparatus |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平7-35663A 1995.02.07 |
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| CN101936844A (en) | 2011-01-05 |
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Address after: 300251 No. 10 Minjiang Road, Minquan gate, Tianjin, Hebei District Patentee after: China Railway Design Group Limited Address before: 300251 No. 10 Minjiang Road, Minquan gate, Tianjin, Hebei District Patentee before: China Railway Third Survey and Design Institute Group Ltd. |
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Effective date of registration: 20211231 Address after: 300251 No. 10 Minjiang Road, Minquan gate, Tianjin, Hebei District Patentee after: CHINA RAILWAY DESIGN Corp. Patentee after: Creec (Tianjin) Testing Technology Co., Ltd Address before: 300251 No. 10 Minjiang Road, Minquan gate, Tianjin, Hebei District Patentee before: CHINA RAILWAY DESIGN Corp. |