CN203069580U - Mechanical calibration device for output load of lever type consolidometer - Google Patents

Mechanical calibration device for output load of lever type consolidometer Download PDF

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Publication number
CN203069580U
CN203069580U CN 201320068254 CN201320068254U CN203069580U CN 203069580 U CN203069580 U CN 203069580U CN 201320068254 CN201320068254 CN 201320068254 CN 201320068254 U CN201320068254 U CN 201320068254U CN 203069580 U CN203069580 U CN 203069580U
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CN
China
Prior art keywords
consolidometer
longeron
power transmission
calibration device
lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320068254
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Chinese (zh)
Inventor
罗强
侯振斌
付铭川
卢良青
陈坚
刘钢
熊勇
何强
李佶敏
张玉广
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Southwest Jiaotong University
Original Assignee
Southwest Jiaotong University
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Publication date
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Priority to CN 201320068254 priority Critical patent/CN203069580U/en
Application granted granted Critical
Publication of CN203069580U publication Critical patent/CN203069580U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a mechanical calibration device for an output load of a lever type consolidometer. The mechanical calibration device is characterized in that four vertical columns (7) are arranged on a stressed tabletop (8) of the consolidometer; the upper parts of the four vertical columns (7) are connected with a high-altitude table seat (5); the high-altitude table seat (5) is positioned above a pressurization cross beam (9) of the consolidometer; a lower longitudinal beam (6) is arranged below the pressurization cross beam (9); two ends of the lower longitudinal beam are connected with the lower end of a force transmission vertical column (2); the force transmission vertical column (2) penetrates through the high-altitude table seat (5); the upper end of the force transmission vertical column (2) is connected with the end of an upper longitudinal beam (1); the lower end of a force transmission bolt (12) in the middle of the upper longitudinal beam (1) is aligned with a concave hole in a concave hole end of a force measurement ring (4); and a cushion block (11) is arranged between the convex head end of the force measurement ring (4) and the high-altitude table seat (5). The calibration device is convenient to operate and low in cost; and a calibration result is precise and reliable.

Description

A kind of mechanical type caliberating device of lever consolidometer output load
Technical field
The utility model relates to a kind of mechanical type caliberating device of lever consolidometer output load.
Background technology
Soil body parameter characterizations such as the compressibility coefficient of the soil body, compression index, swelling index, modulus in compression, the coefficient of consolidation the essential characteristic of the soil body, the relation of soil deformation, time and pressure has been described, the compression property (settling amount) of grasping the soil body is played key effect, and these parameters need to obtain by compression test; In engineering practice, the settling amount of earth structure generally is the compressibility parameter that obtains the soil body according to compression test, calculate according to theoretical formula then and in addition the experience factor method of proofreading and correct obtain, this just requires to obtain experimental data accurately by compression test.This shows that compression test has important and uses widely in soil nature analysis and engineering.
The lever consolidometer is the key instrument that carries out soil body compression test, and its increased pressure beam is hinged by montant and the lever below the pressurized table top at two ends, and the long-armed end of lever is connected with the hanging scaffold of placing counterweight.After hanging scaffold is put counterweight, the long-armed end of lever bears downward load, under the amplification transfer function of lever, increased pressure beam can produce a bigger vertical load, this vertical load acts on the sample in the consolidation container on the pressurized table top by adding cover clamp, thereby finishes soil body compression test.Whether the load that it is exported is accurate, is directly connected to the accuracy of resulting soil body parameter.Because the wearing and tearing of parts such as the error of counterweight and leverage, distortion all can make the load of its output change, output load deviation is crossed senior general's influence to the correct understanding of soil body compression property, even obtains wrong parameter and cause engineering accident.Based on this, be necessary the output load of consolidometer is carried out regular demarcation.
The scaling method of " consolidometer calibrating standard " lever consolidometer output load in (JJF1311-2011) is, standard dynamometer directly is installed on the bottom surface of increased pressure beam, and the lower end of standard dynamometer contacts with the pressurized table top.Put counterweight at hanging scaffold again, measure the output payload values by standard dynamometer, thereby realize the demarcation to the output load.But the height between the increased pressure beam of consolidometer and pressurized table top is less usually, uncommon with this standard dynamometer that highly is complementary or the ring of measuring one's own ability, the precision of the therefore inconvenient operation of this scaling method, and the dynamometer of small dimension or the ring of measuring one's own ability is limited, also causes the precision of its demarcation to have much room for improvement.In addition, " lever consolidometer method of calibration " (SL114-95) also discloses the mode of utilizing the electronic type load sensor and come the output load of consolidometer is carried out the method that the school is examined, but this method needs supporting data acquisition equipment on the one hand, required cost is higher, on the other hand because the electronic type load sensor is subject to the influence of environment temperature, temperature variation can cause bigger interference to experimental result, makes the poor repeatability of its demarcation, also makes its calibrated error big.
The utility model content
The purpose of this utility model provides a kind of mechanical type caliberating device of lever consolidometer output load, and this caliberating device is easy to operate, and is with low cost, and calibration result accurately, reliably.
The utility model for realizing the technical scheme that its goal of the invention adopts is: a kind of mechanical type caliberating device of lever consolidometer output load, it is characterized in that: the pressurized table top at consolidometer is placed four root posts, the top of four root posts is connected with high-order pedestal, and high-order pedestal is positioned at the increased pressure beam top of consolidometer; The below of increased pressure beam is provided with down longeron, and the two ends of following longeron are connected with the lower end of power transmission column; The power transmission column passes high-order pedestal, and its upper end is connected with the end of last longeron; The lower end centering of the power transmission bolt at last longeron middle part is measured one's own ability and is encircled the shrinkage pool of shrinkage pool end; Measure one's own ability the ring the plush copper end and high-order pedestal between be provided with cushion block.
The course of work of the present utility model and principle are:
Timing signal, after the consolidometer hanging scaffold is put counterweight, the long-armed end of consolidometer lever bears downward load, under the amplification transfer function of lever, increased pressure beam can produce a bigger vertical load, this vertical load is successively by descending longeron, power transmission column, last longeron, power transmission bolt to act on the ring of measuring one's own ability, measure the output load value by the ring of measuring one's own ability, thereby finish the demarcation to lever consolidometer output load.
Because this caliberating device integral body is to be placed on the pressurized table top of consolidometer by four root posts, the increased pressure beam of consolidometer also only is to move down the relation that can push down down longeron and transmit load after increased pressure beam carries with the relation of following longeron.Therefore, after demarcation is finished, can easily this device be removed from consolidometer pressurized table top, again consolidation container be put back to the pressurized table top and can be carried out normal compression test.
Compared with prior art, the beneficial effects of the utility model are:
Connect the high-order pedestal that strides across the consolidometer increased pressure beam by four root posts of placing at the pressurized table top of consolidometer, the ring of measuring one's own ability is installed, and the load on the increased pressure beam can be by longeron, two power transmission columns that pass high-order pedestal, last longeron intactly pass to the ring of measuring one's own ability on the high-order pedestal down between high-order pedestal and last longeron.Thereby ring provides a new installing space that is not subjected to increased pressure beam and pressurized table top distance limit in order to measure one's own ability.The utility model can change the distance that goes up between longeron and the high-order pedestal easily, so that the ring of measuring one's own ability of various sizes to be installed.Therefore, find the ring of measuring one's own ability of coupling easily, easy to operate, can use big specification, the high-precision ring of measuring one's own ability, make precision height, the good reliability of its demarcation.
The concrete mode that the top of four above-mentioned root posts is connected with high-order pedestal is for being threaded; The suspension column of four root posts is equipped with the leveling bolt.
Like this, be convenient to the leveling of high-order pedestal, make that the debugging work of timing signal is more simple and convenient, also guaranteed the accurate and reliable of demarcation simultaneously further.
The concrete mode that the two ends of above-mentioned following longeron are connected with the lower end of power transmission column is for being threaded; The concrete mode that the upper end of power transmission column is connected with the end of last longeron is also for being threaded.
Like this, the adjusting of the convenient ring installing space height of measuring one's own ability can use the ring of measuring one's own ability of different size to demarcate under the situation of not changing caliberating device easily.
Below in conjunction with drawings and Examples the utility model is described further.
Description of drawings:
Fig. 1 is the front view of the utility model embodiment;
Fig. 2 is the left view of the utility model embodiment.
Embodiment:
Embodiment
Fig. 1, Fig. 2 illustrate, a kind of embodiment of the present utility model, a kind of mechanical type caliberating device of lever consolidometer output load.Its composition is: the top of placing four root posts, 7, four root posts 7 at the pressurized table top 8 of consolidometer 3 is connected with high-order pedestal 5, and high-order pedestal 5 is positioned at increased pressure beam 9 tops of consolidometer 3; The below of increased pressure beam 9 is provided with down longeron 6, and the two ends of following longeron 6 are connected with the lower end of power transmission column 2; Power transmission column 2 passes high-order pedestal 5, and its upper end is connected with the end of last longeron 1; The lower end centering of the power transmission bolt 12 at last longeron 1 middle part is measured one's own ability and is encircled the shrinkage pool of 4 shrinkage pool ends; Measure one's own ability and be provided with cushion block 11 between ring 4 plush copper end and the high-order pedestal 5.
The concrete mode that the top of four root posts 7 of this example is connected with high-order pedestal 5 is for being threaded; The suspension column of four root posts 7 is equipped with leveling bolt 10.
Fig. 1 illustrates, and the concrete mode that the two ends of the following longeron 6 of this example are connected with the lower end of power transmission column 2 is for being threaded; The concrete mode that the upper end of power transmission column 2 is connected with the end of last longeron 1 is also for being threaded.

Claims (3)

1. the mechanical type caliberating device of lever consolidometer output load, it is characterized in that: the pressurized table top (8) at consolidometer (3) is placed four root posts (7), the top of four root posts (7) is connected with high-order pedestal (5), and high-order pedestal (5) is positioned at increased pressure beam (9) top of consolidometer (3); The below of increased pressure beam (9) is provided with down longeron (6), and the two ends of following longeron (6) are connected with the lower end of power transmission column (2); Power transmission column (2) passes high-order pedestal (5), and its upper end is connected with the end of last longeron (1); The measure one's own ability shrinkage pool of ring (4) shrinkage pool end of the lower end centering of the power transmission bolt (12) at last longeron (1) middle part; Measure one's own ability and be provided with cushion block (11) between the plush copper end of ring (4) and the high-order pedestal (5).
2. a kind of lever consolidometer according to claim 1 is exported the mechanical type caliberating device of load, and it is characterized in that: the concrete mode that the top of described four root posts (7) is connected with high-order pedestal (5) is for being threaded; The suspension column of four root posts (7) is equipped with leveling bolt (10).
3. a kind of lever consolidometer as claimed in claim 1 is exported the mechanical type caliberating device of load, it is characterized in that: the concrete mode that the described two ends of longeron (6) down are connected with the lower end of power transmission column (2) is for being threaded; The concrete mode that the upper end of power transmission column (2) is connected with the end of last longeron (1) is also for being threaded.
CN 201320068254 2013-02-06 2013-02-06 Mechanical calibration device for output load of lever type consolidometer Expired - Fee Related CN203069580U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320068254 CN203069580U (en) 2013-02-06 2013-02-06 Mechanical calibration device for output load of lever type consolidometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320068254 CN203069580U (en) 2013-02-06 2013-02-06 Mechanical calibration device for output load of lever type consolidometer

Publications (1)

Publication Number Publication Date
CN203069580U true CN203069580U (en) 2013-07-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320068254 Expired - Fee Related CN203069580U (en) 2013-02-06 2013-02-06 Mechanical calibration device for output load of lever type consolidometer

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CN (1) CN203069580U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103487329A (en) * 2013-09-25 2014-01-01 深圳大学 Mechanical test instrument for surfaces of soil and structure and test method thereof
CN103792335A (en) * 2014-01-07 2014-05-14 陕西理工学院 Consolidometer information calibration system
CN105181511A (en) * 2015-07-31 2015-12-23 铁道第三勘察设计院集团有限公司 Commonly used geotechnical test instrument output value in-situ verification and calibration device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103487329A (en) * 2013-09-25 2014-01-01 深圳大学 Mechanical test instrument for surfaces of soil and structure and test method thereof
CN103487329B (en) * 2013-09-25 2016-01-20 深圳大学 For mechanical test instrument and the method for testing thereof of soil and structural plane
CN103792335A (en) * 2014-01-07 2014-05-14 陕西理工学院 Consolidometer information calibration system
CN105181511A (en) * 2015-07-31 2015-12-23 铁道第三勘察设计院集团有限公司 Commonly used geotechnical test instrument output value in-situ verification and calibration device
CN105181511B (en) * 2015-07-31 2017-12-15 铁道第三勘察设计院集团有限公司 Conventional earthwork test Instrument power generating value verification caliberating device in situ

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130717

Termination date: 20160206

CF01 Termination of patent right due to non-payment of annual fee