CN201449366U - Adhesive force measuring apparatus - Google Patents

Adhesive force measuring apparatus Download PDF

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Publication number
CN201449366U
CN201449366U CN2009200558402U CN200920055840U CN201449366U CN 201449366 U CN201449366 U CN 201449366U CN 2009200558402 U CN2009200558402 U CN 2009200558402U CN 200920055840 U CN200920055840 U CN 200920055840U CN 201449366 U CN201449366 U CN 201449366U
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CN
China
Prior art keywords
cup
base
native
native cream
force
Prior art date
Application number
CN2009200558402U
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Chinese (zh)
Inventor
郭玉华
胡长友
林荃
余小廉
Original Assignee
中交第四航务工程勘察设计院有限公司
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Priority to CN2009200558402U priority Critical patent/CN201449366U/en
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Publication of CN201449366U publication Critical patent/CN201449366U/en

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Abstract

The utility model provides an adhesive force measuring apparatus for measuring adhesive force of cohesive soil, which comprises a force adding device, a force measuring device, a force transmission device, a soil paste cup mechanism and an apparatus base. A hand-operated threaded rotating bar is arranged between supports of the force adding device, a movable platform which utilizes the supports as guide tracks is movably connected onto the hand-operated threaded rotating bar, the movable platform fixes a force meter, the force measuring device consists of the force meter and a hanging ring below the force meter, a shock absorbing spring of the force transmission device is connected with the hanging ring of the force measuring device, a hook is connected below the shock absorption spring, the soil paste cup mechanism consists of a soil paste cup cover, a cup hoop, a soil paste cup and a base, the soil paste cup cover is connected with the hook of the force transmission device, and the soil paste cup is arranged below the soil paste cup cover. Through utilizing work modes of hand-operated lifting and direct force measuring, the adhesive force measuring apparatus greatly increases reliability and accuracy of experimental data, increases work quality and work efficiency and is stronger in operability.

Description

The adhesion measuring instrument
Technical field
The utility model relates to a kind of measuring equipment, specifically refers to a kind of measuring instrument of measuring cohesive soil adhesion.
Background technology
It is the geotechnological class test apparatus of measuring the adhesion test of cohesive soil that the adhesion measuring instrument is meant special, and for a long time, adhesion test is the proprietary soil test of harbor work system basically, provides test figure for excavation projects such as navigation channel, basins specially.And used adhesion measuring instrument is that eighties of last century was made the eighties in the past at present, this instrument belongs to non-standard equipment, need during test by the testing crew manual operations, manufacture difficulty is big, expense is high, uses and keep in repair neither convenience, the maintenance difficulty, the easy-to-rust wearing and tearing, operation easier is big, and efficient is low, and operating personnel must have very skilled experience could complete operation.
Old-fashioned adhesion measuring instrument as shown in Figure 1, its structure is by lever dolly 101, the crossbeam 102 on top, the base 103 and the edge of a knife 104, the balanced weight 105 in lever dolly left side, iron chains 106, iron sand bucket 107, the lever dolly right side is in the iron chains 108 on the base, the native cream bowl cover 109 that iron chains is divided into, soil cream cup 110 constitutes, this structure designs according to lever principle, adopt 1: 5 lever ratio, by in the iron sand bucket, adding iron sand, destroy up to balance, weighing iron sand weight then, calculate soil in the native cream cup to the tension of native cream bowl cover by lever balance theory, try to achieve the adhesion of soil.
There is following defective in above-mentioned old-fashioned adhesion measuring instrument:
(1), loading speed is difficult to hold the dynamometry low precision;
(2), integral body is rigid structure, be difficult to avoid impact and vibrations;
(3), there is friction force in the lever knife-edge part, influences experiment effect;
(4), native cream cup is extruding type, be difficult to hold the pressurization size, and the friction force between native cream cup and the native cream bowl cover can't be avoided also;
(5), instrument is steel construction, corrosive wear easily, maintenance difficulty;
(6), this instrument is that machining forms, apparatus guarantee is changed difficulty, cost height.
Continuous development along with the port engineering construction, dredging, excavation project are on the increase, need carry out a large amount of adhesion tests during geological mapping, old-fashioned adhesion measuring instrument has been difficult to adapt to the requirement of producing, and it is extremely urgent to design and develop novel, advanced adhesion measuring instrument.
Summary of the invention
For improving the stability of adhesion experimental data, make the experimental result precision higher, reliability is stronger, improve work quality and work efficiency, the utility model proposes that a kind of structure closes, easy to operate adhesion measuring instrument, reliability, degree of accuracy that it can effectively improve experimental data satisfy actual needs, workable, the maintenance of instrument, easy maintenance.
For achieving the above object, the utility model is achieved by the following technical programs: this adhesion measuring instrument comprises augmentor, device for measuring force, load transfer device, soil cream cup mechanism, instrument base, augmentor wherein and native cream cup mechanism are contained on the instrument base, augmentor is at least by symmetrical support, the hand tommy and the movable platform of band crank constitute, device for measuring force is made of dynamometer and link at least, described load transfer device is made of damping spring and hook at least, and described native cream cup mechanism is at least by native cream bowl cover, the cup hoop, soil cream cup and base constitute;
Be installed with hand tommy between the described symmetrical support, movable platform is that guide rail is movably connected on the described hand tommy with the support, and described augmentor is by the fixing dynamometer of device for measuring force of movable platform;
The link of described device for measuring force is connected in the below of dynamometer, and both are on the same longitudinal axis;
The link of described damping spring and device for measuring force joins, and the hook of load transfer device is connected in the below of damping spring;
The native cream bowl cover of described native cream cup mechanism links to each other with the hook of described load transfer device, is provided with native cream cup with the below of native cream bowl cover longitudinal axis centering, and native cream cup is fixed by base, and the rim of a cup edge of native cream cup is installed with the cup hoop.
The further technical measures of the utility model are, the base in stating is shape ringwise, and native cream cup places in the annular of annular base.
The bottom of described native cream cup is provided with some projectioies, and the bottom of base is provided with the projection that can make native cream cup and complies with the groove of inserting, the bottom of base also be provided with can with native cream cup projection after the rotating collar of buckle mutually.
Described cup hoop internal diameter equates that with the internal diameter of native cream cup the base internal diameter equates with the external diameter of native cream cup.
The bottom of described instrument base adds the horizontal and vertical horizontal bubble that is used for fixing native cream cup, and the below of instrument base adds the balance nut that can make horizontal adjustment.
With existing adhesion measuring instrument contrast, the utlity model has following substantive distinguishing features and progress:
1, device for measuring force aspect, the principle of work of change instrument changes lever into direct force-measuring type, avoids lever edge of a knife friction force and median error;
2, augmentor aspect, afterburning mode changes hand hoisting type into by adding abrasive grit, controls the soil sample strain rate easily;
3, load transfer device aspect changes the spring power transmission into by lever transmission, avoids vibrations and impact;
4, soil sample container aspect, native cream cup are easy to pressurization by the forced planishing type that changes into, avoid the friction force between native cream cup and the native cream bowl cover;
5, instrument adopts stainless steel, plastics and copper etc. to be difficult for the corrosive wear material;
6, adopt common apparatus to make element, for ease of maintenaince change.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of old-fashioned adhesion measuring instrument;
Fig. 2 is the structural representation of the utility model adhesion measuring instrument;
Fig. 3 is the structural representation of augmentor;
Fig. 4 is the structural representation of device for measuring force;
Fig. 5 is the structural representation of load transfer device;
Fig. 6 is the structural representation of native cream cup mechanism;
Fig. 7 soil cream cup binds round vertical view outward;
Fig. 8 soil cream cup binds round sectional view outward;
Fig. 9 soil cream cup vertical view;
The vertical view of Figure 10 soil cream cup base;
The sectional view of Figure 11 soil cream cup base.
Among the figure: 1, augmentor, 11, support, 12, hand tommy, 13, crank, 14, movable platform, 2, device for measuring force, 21, dynamometer, 22, link, 3, load transfer device, 31, damping spring, 32, hook, 4, native cream cup mechanism, 41, native cream bowl cover, 42, cup hoop, 43, native cream cup, 44, base, 45, projection, 46, groove, 47, collar, 5, instrument base, 51, bubble, 52, the balance nut.
Embodiment
With reference to shown in Figure 2, in the structure of the present utility model, the adhesion measuring instrument is made of augmentor 1, device for measuring force 2, load transfer device 3, native cream cup mechanism 4 and instrument base 5, and augmentor 1 is fixedly arranged on the instrument base 5 with native cream cup mechanism 4.
With reference to shown in Figure 3, augmentor 1 is made of the hand tommy 12 and the movable platform 14 of symmetrical support 11, band crank 13, be installed with hand tommy 12 between the support 11, movable platform 14 is that guide rail is movably connected on the hand tommy 12 with support 11, move up and down along support 11 by hand tommy 12, be used for fixing the dynamometer 21 of device for measuring force 2; Instrument base 5 adds horizontal and vertical horizontal bubble 51, is used for fixing native cream cup 43, but the below of while instrument base 5 adds the balance nut 52 of horizontal adjustment.
With reference to shown in Figure 4, device for measuring force 2 is made of dynamometer 21 and link 22, link 22 is connected in the below of dynamometer 21, both are on the same longitudinal axis, and dynamometer 21 precision are 0.01N, and range is 50N, dynamometer 21 can read peak value automatically, can also connect computer under the situation if needed, draw strain and stress curve, link 22 is smooth.
With reference to shown in Figure 5, load transfer device 3 is made of damping spring 31 and hook 32, and damping spring 31 joins with the link 22 of device for measuring force 2, and hook 32 is established in the below of damping spring 31;
With reference to Fig. 6-shown in Figure 11, soil cream cup mechanism 4 is made of native cream bowl cover 41, cup hoop 42, native cream cup 43 and base 44, soil cream bowl cover 41 links to each other with the hook 32 of load transfer device 3, and native cream cup 43 is located at the below of the longitudinal axis centering of native cream bowl cover 41, and the rim of a cup edge of native cream cup 43 is installed with cup hoop 42.In above-mentioned, must be smooth at the bottom of the lid of soil cream bowl cover 41, and maintenance smooth finish, the cup hoop 42 high cream cup 0.5mm that are unearthed, base 44 is fixing by screw and instrument base 5, soil cream cup 43 is fixed by annular base 44 and is placed in the annular of base 44, the bottom of soil cream cup 43 is provided with some protruding 45, the bottom of base 44 is provided with the projection 45 that can make native cream cup 43 and complies with the groove 46 of inserting, the bottom of base 44 also be provided with can with native cream cup projection 45 after the rotating collar 47 of buckle mutually, this structure can make base block native cream cup it can not be moved up and down, and then fixing.The internal diameter of cup hoop 42 is identical with the internal diameter of native cream cup 43, and the internal diameter of base 44 is identical with the external diameter of native cream cup 43, and sectional area is 10cm in the cup 2
Principle of operation of the present utility model and use step are as follows:
(1), instrument level-off;
(2), soil sample mixes well, and measured moisture content;
(3), soil sample fills up the native cream cup of strap, the leveling surface, a soil sample can not contain bubble in the cup;
(4), native cream cup sheds cup hoop, carefully installs on the base;
(5), dynamometer is loaded onto link, load transfer device and the zero clearing of native cream bowl cover;
(6), adjust threaded rod, make native cream bowl cover and soil sample top contact, lid and cup axis are wanted centering;
(7), with the 2kg counterweight at the caping 30S that pressurizes;
(8), crank turns around and promotes 2mm, shakes a circle in 10 minutes, keeps the speed of 0.2mm per minute to promote tautness meter, up to peak value occurring;
(9), experiment finishes cleaning instrument, preparation experiment next time;
(10) repeat more than the above step 4 time, till the experimental result deviation is little;
(11) interpretation draws the adhesion data.
Adhesion F (g/cm 2) computing formula is:
F=N/A
Wherein: N is the peak value pulling force, and unit is g;
A is the soil sample sectional area, 10cm 2
The F that draws is the adhesion size of glass interior soil sample.
The utility model and traditional adhesion measuring instrument contrast, its experiment data result is as follows:
1. test figure statistics and efficient comparative analysis
Content New instrument Old instrument
The test specimen number ??1521 ??1521
The test number (TN) summation ??6170 ??9421
Efficiency test data number ??4887 ??5021
Probability is tested in success ??79.20% ??53.30%
Average each specimen test number of times ??4.06 ??6.19
Test used working day 33 days 67 days
2. instrument user mode statistics comparative analysis (on September 30th, 1 2008 on April 1st, 2008)
Content New instrument Old instrument
Because of instrument failure can't test number (TN) ??1 ??2
Can't test number (TN) because of having a power failure ??0 ??3
The apparatus guarantee number of times ??1 ??1
3. outcome data statistics comparative analysis
Content New instrument Old instrument
The test figure number ??6170 ??9421
The standard deviation mean value of every group of soil sample ??9.84 ??22.764
The coefficient of variation mean value of every group of soil sample ??0.12 ??0.28
Content New instrument Old instrument
The coefficient of variation maximal value of every group of soil sample ??0.29 ??0.30
The coefficient of variation minimum value of every group of soil sample ??0 ??0.15
Show that from above-mentioned comparative test result the efficient of test figure brings up to 79% by original 53%; Work efficiency can improve 50%.New instrument is more easy to operate, and human factor is smaller to the experimental result influence; New-type adhesion measuring instrument failure rate is low, and the equipment factor that the influence test can't be carried out greatly reduces.Use is through improved adhesion measuring instrument, and the experimental result discreteness of soil sample is little on the same group, has more improved the degree of accuracy of achievement data, for the engineering construction practice gains time, has obtained good effect.New adhesion measuring instrument measuring data reliability height, simple to operate before the accuracy, easy to maintenance, it is many to adapt at present external project, and the production that the instrument usage quantity is many needs, and can satisfy code requirement.
The utility model includes but not limited to that the foregoing description lifts, and the structure of any effects equivalent based on the conversion of the technical program institute all belongs to protection domain of the present utility model.

Claims (5)

1. adhesion measuring instrument, it is characterized in that: include augmentor, device for measuring force, load transfer device, native cream cup mechanism and instrument base at least, described augmentor and native cream cup mechanism are loaded on the described instrument base, described augmentor is made of the hand tommy and the movable platform of symmetrical support, band crank at least, described device for measuring force is made of dynamometer and link at least, described load transfer device is made of damping spring and hook at least, and described native cream cup mechanism is made of native cream bowl cover, cup hoop, native cream cup and base at least:
Be installed with hand tommy between the described symmetrical support, movable platform is that guide rail is movably connected on the described hand tommy with the support, and described augmentor is by the fixing dynamometer of device for measuring force of movable platform;
The link of described device for measuring force is connected in the below of dynamometer, and both are on the same longitudinal axis;
The link of described damping spring and device for measuring force joins, and the hook of load transfer device is connected in the below of damping spring;
The native cream bowl cover of described native cream cup mechanism links to each other with the hook of described load transfer device, is provided with native cream cup with the below of native cream bowl cover longitudinal axis centering, and native cream cup is fixed by base, and the rim of a cup edge of native cream cup is installed with the cup hoop.
2. adhesion measuring instrument according to claim 1 is characterized in that: described base is annular shape, and native cream cup places in the annular base.
3. adhesion measuring instrument according to claim 1, it is characterized in that: the bottom of described native cream cup is provided with some projectioies, the bottom of base is provided with the projection that can make native cream cup and complies with the groove of inserting, the bottom of base also be provided with can with native cream cup projection after the rotating collar of buckle mutually.
4. adhesion measuring instrument according to claim 1 is characterized in that: described cup hoop internal diameter equates that with the internal diameter of native cream cup the base internal diameter equates with the external diameter of native cream cup.
5. adhesion measuring instrument according to claim 1 is characterized in that: the bottom of described instrument base adds the horizontal and vertical horizontal bubble that is used for fixing native cream cup, and the below of instrument base adds the balance nut that can make horizontal adjustment.
CN2009200558402U 2009-05-04 2009-05-04 Adhesive force measuring apparatus CN201449366U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102288542A (en) * 2011-07-22 2011-12-21 华北电力大学(保定) System and method for measuring adhesion strength of ice coating on material surface
CN102494994A (en) * 2011-11-11 2012-06-13 中国科学院寒区旱区环境与工程研究所 Instrument for measuring soil adherence force
CN102494995A (en) * 2011-11-11 2012-06-13 中国科学院寒区旱区环境与工程研究所 Lever soil adherence force tester
CN104458572A (en) * 2014-12-09 2015-03-25 唐山瑞尔法新材料科技有限公司 Enamel adherence strength tester
CN104655562A (en) * 2015-02-14 2015-05-27 广州发展环保建材有限公司 Method for testing pull-breaking value of bonding strength of autoclaved aerated concrete interface material
CN105181582A (en) * 2015-09-14 2015-12-23 长安大学 Test device for cohesive force of sand-containing fog sealing layer
CN107063996A (en) * 2017-03-15 2017-08-18 北京航空航天大学 A kind of measuring apparatus and measuring method for being used to measure adhesive strength
CN107560976A (en) * 2017-08-30 2018-01-09 陈霁阳 A kind of ash particle device for measuring viscosity

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102288542A (en) * 2011-07-22 2011-12-21 华北电力大学(保定) System and method for measuring adhesion strength of ice coating on material surface
CN102494994A (en) * 2011-11-11 2012-06-13 中国科学院寒区旱区环境与工程研究所 Instrument for measuring soil adherence force
CN102494995A (en) * 2011-11-11 2012-06-13 中国科学院寒区旱区环境与工程研究所 Lever soil adherence force tester
CN104458572A (en) * 2014-12-09 2015-03-25 唐山瑞尔法新材料科技有限公司 Enamel adherence strength tester
CN104655562A (en) * 2015-02-14 2015-05-27 广州发展环保建材有限公司 Method for testing pull-breaking value of bonding strength of autoclaved aerated concrete interface material
CN105181582A (en) * 2015-09-14 2015-12-23 长安大学 Test device for cohesive force of sand-containing fog sealing layer
CN105181582B (en) * 2015-09-14 2018-02-06 长安大学 A kind of sealing adhesive aggregation force test device of mist containing sand
CN107063996A (en) * 2017-03-15 2017-08-18 北京航空航天大学 A kind of measuring apparatus and measuring method for being used to measure adhesive strength
CN107560976A (en) * 2017-08-30 2018-01-09 陈霁阳 A kind of ash particle device for measuring viscosity

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Granted publication date: 20100505

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