CN207991599U - The underground acquisition component of power and speed signal in standard penetration test (SPT) - Google Patents
The underground acquisition component of power and speed signal in standard penetration test (SPT) Download PDFInfo
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- CN207991599U CN207991599U CN201820391071.2U CN201820391071U CN207991599U CN 207991599 U CN207991599 U CN 207991599U CN 201820391071 U CN201820391071 U CN 201820391071U CN 207991599 U CN207991599 U CN 207991599U
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- power transmission
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- piezoelectric pressure
- spline
- transmission sleeve
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Abstract
The utility model is power and speed signal underground acquisition component in standard penetration test (SPT), it is connected between drilling rod bottom end and standard penetrometer, so that top connection and its power transmission sleeve is connected as relatively-stationary entirety with lower contact and its supporting sleeve by hollow bolt, and the piezoelectric pressure indicator between power transmission sleeve and stop sleeve is made to be critical engagement state.Spline housing constitutes spline with the tooth form housing of the spline tooth and piezoelectric pressure indicator of power transmission sleeve and stop sleeve respectively and connect.The piezoelectric pressure indicator and acceleration transducer of this component can really detect the power and movement velocity that standard penetrometer is directly born, the hammering energy caused by sounding rod bending or sounding rod and hole wall friction that solves more thoroughly is lost, it ensure that the accurate of test data, therefore need not carry out bar length during later data arranges and correct.The utility model has reasonable for structure, easy to operate and test data accurately and reliably outstanding advantages.
Description
Technical field
The utility model belongs to dynamic sounding in situ, more particularly to power in a kind of standard penetration test (SPT) and speed signal
Lower acquisition component.
Background technology
Standard penetration test (SPT) (SPT) is the common test method of dynamic sounding in situ, and capital equipment includes Standard piercing
Device or dynamic probe, drilling rod, punching hammer, SPT analyzers and telescopic data acquisition components, the component are mounted on punching and hammer into shape and sample
It is one of ground installations at the top of drilling rod between bar.
Two piezoelectricity Bridge transmitters and two acceleration transducers, SPT analyses are set in telescopic data acquisition components
Instrument receives the power that each sensor provides and speed signal and is converted to hammering energy in real time, and is shown and stored.
During the test especially test depth it is deeper when, due to sounding rod stress deformation bending or sounding rod with
Hole wall friction can all lead to the loss of hammering energy, and the energy for being transmitted to standard penetrometer is caused to be adopted with ground upper bush formula data
The hammering energy that the data of collection component acquisition are converted through SPT analyzers is inconsistent, causes test data inaccurate, thus in the later stage
It needs to carry out bar length amendment in data-handling procedure.
Invention content
The utility model proposes power and speed signal in a kind of standard penetration test (SPT) in view of the above shortcomings of the prior art
Underground acquisition component.
The utility model takes following technical scheme to achieve the above object：Power and speed letter in a kind of standard penetration test (SPT)
Number underground acquisition component, including piezoelectric pressure indicator and acceleration transducer, are characterized in, the underground acquisition component is equipped with
The lower contact of the top connection and connection standard penetrometer upper end of threaded connection drill stem bottom end, the top connection bottom end is threadedly coupled one
Power transmission sleeve, engaging portion are equipped with sealing rubber ring, and the lower contact threaded upper ends connect a stop sleeve, and joint portion is equipped with close
Sealing rubber ring, described closed one end of stop sleeve are fixed with acceleration transducer, and the center sliding support of the power transmission sleeve has
It is axial hollow bolt relative to power transmission sleeve, which is threadedly coupled with stop sleeve, the power transmission sleeve and branch
Between support set cylinder be equipped with annular piezoelectric pressure indicator, the pressure sensor respectively with the power transmission sleeve and stop sleeve
The critical engagement in end face, the power transmission sleeve and the corresponding end surface of stop sleeve be respectively equipped with spline tooth and with the flower
The spline housing that key teeth is meshed, the piezoelectric pressure indicator are equipped with tooth form housing, and tooth form housing is meshed with spline housing,
One end that the spline housing corresponds to top connection is equipped with the anti-avulsion inner convex platform that is engaged with the positive stop lug boss of power transmission sleeve, spline housing with
The sliding interval of the spline housing, the power transmission sleeve and the joint portion of stop sleeve and spline housing difference are equipped between top connection
Equipped with sealing rubber ring, the tooth form housing of the piezoelectric pressure indicator and the spline tooth of stop sleeve are equipped with corresponding connect
The toothless portion) of piezoelectric pressure indicator signal output line, stop sleeve are equipped with the cable-through hole road being connected to the toothless portion), should
Cable-through hole road is mutually connected with the port of hollow bolt, and installation battery and signal acquisition storage circuit plate are equipped in the top connection
The signal output line of circuit board storehouse, piezoelectric pressure indicator and acceleration transducer passes through hollow bolt to be stored with signal acquisition
Circuit board respective input is connected, and the top connection is equipped with the plug-like end cap being threadedly coupled with it, plug-like end cap and top connection
Joint portion is equipped with sealing rubber ring, and plug-like end cap is equipped with the via and its harness fluid sealant of the signal acquisition storage circuit plate bundle of outputs
Circle.
The utility model can also take following technical measures：
The nut of the hollow bolt is equipped with spring washer with power transmission sleeve engaging portion.
The stop sleeve is equipped with radial screw hole, is equipped with holding screw in radial screw hole, holding screw is tight with hollow bolt
Contiguity is closed.
The beneficial effects of the utility model and advantage are：This power and speed signal underground acquisition component are connected to drilling rod bottom
Between end and standard penetrometer, enable really to detect power and movement velocity that standard penetrometer is directly born, more thoroughly
It solves the hammering energy caused by the bending of sounding rod stress deformation or sounding rod and hole wall friction to be lost, ensure that test number
According to it is accurate.It is whole that this component by hollow bolt makes top connection and its power transmission sleeve with lower contact and its supporting sleeve be connected as one
Body, and the piezoelectric pressure indicator between power transmission sleeve and stop sleeve is made to be critical engagement state.Spline housing respectively with biography
Power sleeve, the spline tooth of stop sleeve and piezoelectric pressure indicator tooth form housing composition spline connect, and on the one hand make top connection
And its power transmission sleeve, lower contact and its stop sleeve and piezoelectric pressure indicator position and avoid rotating displacement up and down,
On the other hand top connection and its power transmission sleeve can be made to be axially moved under hammering state, is really surveyed by piezoelectric force transducer
Go out the size of standard penetration device stress.It is long that there is the utility model the arrangement of reasonable for structure, easy to operate, later data need not carry out bar
It corrects and test data accurately and reliably outstanding advantages.
Description of the drawings
Attached drawing 1 is example structure schematic diagram.
Attached drawing 2 is Fig. 1 diagrammatic cross-sections.
Attached drawing 3 is Fig. 2A-A enlarged views.
It is marked in figure：1 top connection, 1-1 harness sealing rubber rings, 1-2 plug-like end caps, 2 power transmission sleeves, 3 spline housings, 3-1 stop
De- inner convex platform, 3-2 slidings interval, 4 stop sleevees, 4-1 toothless portion)s, 4-2 cable-through holes road, 5 lower contacts, 6 circuit board storehouses, 7 is hollow
Bolt, 7-1 spring washers, 8 piezoelectric pressure indicators, 9 tooth form housings, 9-1 toothless portion)s, 10 acceleration transducers, 10-1 spiral shells
Nail, 11 radial screw holes, 12 holding screws.
Specific implementation mode
The utility model is further illustrated with reference to embodiment and its attached drawing.
Embodiment as shown in Figure 1, 2, underground acquisition component are equipped with top connection 1 and the connection standard of threaded connection drill stem bottom end
The lower contact 5 of penetrator upper end.
1 bottom end of top connection is threadedly coupled a power transmission sleeve 2, and engaging portion is equipped with sealing rubber ring, and 5 threaded upper ends of lower contact connect
A stop sleeve 4 is connect, joint portion is equipped with sealing rubber ring, and 4 closed one end of stop sleeve is fixed with acceleration transducer 10, leads to
It crosses screw 10-1 and is allowed to fixed.
It is axial hollow bolt 7 that the center sliding support of power transmission sleeve 2, which has relative to power transmission sleeve, the hollow bolt with
Stop sleeve 4 is threadedly coupled, and so that top connection and its power transmission sleeve is connect with lower contact and its supporting sleeve and is integral.Hollow bolt
7 nut is equipped with spring washer 7-1 with 2 engaging portion of power transmission sleeve.
Stop sleeve 4 is arranged with radial screw hole 11, and holding screw 12, holding screw and hollow spiral shell are equipped in radial screw hole
Bolt 7 is tightly engaged into, and holding screw 12 can avoid the loosening of holding screw 12.
The piezoelectric pressure indicator 8 of annular, pressure sensor difference are equipped between power transmission sleeve 2 and stop sleeve 4
Become critical engagement state with the end face of the power transmission sleeve and stop sleeve by adjusting hollow bolt 7.
Power transmission sleeve 2 and 4 corresponding end surface of stop sleeve are respectively equipped with spline tooth and are mutually nibbled with the spline tooth
The spline housing 3 closed, piezoelectric pressure indicator 8 are equipped with tooth form housing 9, and tooth form housing is meshed with spline housing 3.
One end that spline housing 3 corresponds to top connection 1 is equipped with the anti-avulsion inner convex platform 3- engaged with the positive stop lug boss of power transmission sleeve 2
1, the sliding interval 3-2 of the spline housing is equipped between spline housing 3 and top connection 1.Power transmission sleeve 2 and stop sleeve 4 and spline
The joint portion of set 3 is respectively equipped with sealing rubber ring.
The tooth form housing 9 of piezoelectric pressure indicator is equipped with the toothless portion) for connecting piezoelectric pressure indicator signal output line
The spline tooth of 9-1 (see Fig. 2,3), stop sleeve 4 are equipped with toothless portion) 4-1 corresponding with 9 toothless portion) of tooth form housing, stop sleeve
4 are equipped with the cable-through hole road 4-2 being connected to the toothless portion), which is mutually connected with the port of hollow bolt 7.
The circuit board storehouse 6 of installation battery and signal acquisition storage circuit plate, piezoelectric pressure indicator are equipped in top connection 1
8 and the signal output line of acceleration transducer 10 be connected with signal acquisition storage circuit plate respective input across hollow bolt 7
It connects, top connection 1 is equipped with the plug-like end cap 1-2 being threadedly coupled with it, and plug-like end cap is equipped with sealing rubber ring, plug with top connection joint portion
Shape end cap is equipped with the via and its harness sealing rubber ring 1-1 of the signal acquisition storage circuit plate bundle of outputs.
It the above is only presently preferred embodiments of the present invention, any restrictions not done to the utility model.
Claims (3)
1. the underground acquisition component of power and speed signal in standard penetration test (SPT), including piezoelectric pressure indicator and acceleration pass
Sensor, it is characterised in that：The underground acquisition component is equipped with top connection and the connection standard penetrometer of threaded connection drill stem bottom end
The lower contact of upper end, the top connection bottom end are threadedly coupled a power transmission sleeve, and engaging portion is equipped with sealing rubber ring, the lower contact
Threaded upper ends connect a stop sleeve, and joint portion is equipped with sealing rubber ring, and described closed one end of stop sleeve is fixed with acceleration
Sensor is spent, the center sliding support of the power transmission sleeve has relative to the hollow bolt that power transmission sleeve is axial direction, the hollow spiral shell
Bolt is threadedly coupled with stop sleeve, and the piezoelectric pressure indicator of annular is equipped between the power transmission sleeve and stop sleeve, should
The pressure sensor critical engagement in end face with the power transmission sleeve and stop sleeve respectively, the power transmission sleeve and stop sleeve phase
The spline housing that corresponding end surface is respectively equipped with spline tooth and is meshed with the spline tooth, the piezoelectric pressure sensing
Device is equipped with tooth form housing, and tooth form housing is meshed with spline housing, and one end that the spline housing corresponds to top connection is equipped with and power transmission set
The anti-avulsion inner convex platform that the positive stop lug boss of cylinder engages is equipped with the sliding interval of the spline housing, institute between spline housing and top connection
The joint portion for stating power transmission sleeve and stop sleeve and spline housing is respectively equipped with sealing rubber ring, the tooth of the piezoelectric pressure indicator
The spline tooth of shape housing and stop sleeve is equipped with the corresponding toothless portion) for connecting piezoelectric pressure indicator signal output line, branch
Support set cylinder is equipped with the cable-through hole road that is connected to the toothless portion), which is mutually connected with the port of hollow bolt, it is described on
The circuit board storehouse of installation battery and signal acquisition storage circuit plate, piezoelectric pressure indicator and acceleration sensing are equipped in connector
The signal output line of device is connected across hollow bolt with signal acquisition storage circuit plate respective input, and the top connection is equipped with
The plug-like end cap being threadedly coupled with it, plug-like end cap are equipped with sealing rubber ring with top connection joint portion, and plug-like end cap is adopted equipped with signal
Collect the via and its harness sealing rubber ring of the storage circuit plate bundle of outputs.
2. the underground acquisition component of power and speed signal in standard penetration test (SPT) according to claim 1, it is characterised in that：
The nut of the hollow bolt is equipped with spring washer with power transmission sleeve engaging portion.
3. the underground acquisition component of power and speed signal in standard penetration test (SPT) according to claim 1, it is characterised in that：
The stop sleeve is equipped with radial screw hole, is equipped with holding screw in radial screw hole, holding screw is tightly engaged into hollow bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820391071.2U CN207991599U (en) | 2018-03-22 | 2018-03-22 | The underground acquisition component of power and speed signal in standard penetration test (SPT) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820391071.2U CN207991599U (en) | 2018-03-22 | 2018-03-22 | The underground acquisition component of power and speed signal in standard penetration test (SPT) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207991599U true CN207991599U (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820391071.2U Active CN207991599U (en) | 2018-03-22 | 2018-03-22 | The underground acquisition component of power and speed signal in standard penetration test (SPT) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375395A (en) * | 2018-03-22 | 2018-08-07 | 中国铁路设计集团有限公司 | The underground acquisition component of power and speed signal in standard penetration test (SPT) |
-
2018
- 2018-03-22 CN CN201820391071.2U patent/CN207991599U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375395A (en) * | 2018-03-22 | 2018-08-07 | 中国铁路设计集团有限公司 | The underground acquisition component of power and speed signal in standard penetration test (SPT) |
| CN108375395B (en) * | 2018-03-22 | 2024-04-19 | 中国铁路设计集团有限公司 | Underground acquisition assembly for force and speed signals in standard penetration test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190411 Address after: No. 88 Manjiang Road, Yueyahe Street, Hebei District, Tianjin 300251 Patentee after: TieSanyuan (Tianjin) Engineering Co., Ltd. Address before: 300142 No. 10, Hebei District, Tianjin, Zhongshan Road Patentee before: China Railway Design Group Limited |
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| TR01 | Transfer of patent right |