CN101271101A - Measuring apparatus for cement standard consistency and setting time - Google Patents
Measuring apparatus for cement standard consistency and setting time Download PDFInfo
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- CN101271101A CN101271101A CNA200710013682XA CN200710013682A CN101271101A CN 101271101 A CN101271101 A CN 101271101A CN A200710013682X A CNA200710013682X A CN A200710013682XA CN 200710013682 A CN200710013682 A CN 200710013682A CN 101271101 A CN101271101 A CN 101271101A
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- 239000004568 cement Substances 0.000 title claims abstract description 53
- 238000012360 testing method Methods 0.000 claims abstract description 46
- 239000000523 sample Substances 0.000 claims abstract description 38
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 238000013519 translation Methods 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000017105 transposition Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The invention discloses a measurement device of cement standard consistency and setting time, which aims at providing a full-automatic, accurate and high-efficiency measurement device of cement standard consistency and setting time. The device comprises a measurement probe (2), a probe lifting mechanism (3), a probe translation mechanism (4), a displacement sensor (29) and a cement curing box (5). The cement curing box (5) is connected with the probe translation mechanism (4) which is further linked with the probe lifting mechanism (3), the probe lifting mechanism (3) is connected with the measurement probe (2), and a test bar (31) or an initial setting test needle (12) or a final setting test needle (30) is connected on the measurement probe (2). The measurement device of the invention can automatically detect the cement standard consistency and the setting time.
Description
Technical field
The present invention relates to a kind of device of measuring the cement physical property, more particularly, relate to a kind of device of measuring cement normal consistency and setting time.
Background technology
Cement setting time is one of important parameter of cement physical properties.Cement setting is meant that cement adds and mixes cement standard behind the water and starch only, is converted to the process of the solid state with certain intensity by plastic state.Cement loses the plastic time and is called the presetting period; The time that cement begins to produce certain intensity is called final setting time.China's accepted standard is GB/T 1346-2001 " cement normal consistency water consumption, setting time, the stability method of inspection " at present.Wherein the mensuration about consumptive use of water normal consistence has following regulation: with diameter be
It is the cement paste of 40mm that the bar of 10mm inserts thickness with free falling body state, and (when sinking to the degree of depth and be 34mm ± 1mm), it mixes and stirs the consumptive use of water normal consistence of the water yield for this cement apart from base plate 6mm ± 1mm when sinking to clean slurry.Wherein the mensuration about setting time has following regulation: diameter is
1.13mm test point to insert thickness with free falling body state be the cement paste of 40mm, (when sinking to the degree of depth and be 36mm ± 1mm), cement reaches the initial set state apart from base plate 4mm ± 1mm when sinking to clean slurry; And when test point sinks to examination body 0.5mm, be the final set state.
Though the full automatic Vicat apparatus of China's design meets national standard, and the shortcoming of self is arranged.For example, Chinese patent publication number CN1763524A, in open day on April 26th, 2006, the name of invention is called novel full automatic Vicat apparatus, and this application discloses a kind of device of all automatic measurement cement setting time.Its deficiency is: at first, test point relies on deadweight to insert cement test sample, and test point must stay for some time in cement paste, thereby causes efficiency of measurement low; Secondly, need in the measuring process manually to change pin, and do not have the cement conservation device, can't realize all automatic measurement of cement setting time.
Summary of the invention
The invention provides a kind of automatically, efficiently, accurately cement normal consistency and setting time measurement mechanism.In order to achieve the above object, the present invention adopt following cement normal consistency and setting time measuring method, concrete steps are as follows:
A) cement is added water and mix cement paste, packing into places die trial on the glass film plates, inserts with pocket knife and smashes, and vibration scrapes off unnecessary clean slurry for several times gently, and floating back is to be measured;
B) drive motor drives test probe and at the uniform velocity falls to 1-2mm place, cement die trial top with 0.7-0.9m/s;
C) drive motor drives bar and at the uniform velocity inserts in the cement paste with 0.4-0.6m/s when measuring cement normal consistency, when resistance reaches 2.95N ± 0.01N, and bar apart from the base plate distance during for 6mm ± 1mm cement paste be that normal consistency is starched only;
D) in the cement initial set stage, drive motor drives the initial set test point and at the uniform velocity inserts in the cement paste with 0.4-0.6m/s, measures once in per 5 minutes, when resistance reaches 2.95N ± 0.01N, and when the initial set test point is 4mm ± 1mm apart from base plate distance, for cement reaches the initial set state;
E) in the cement final set stage, drive motor drives the final set test point and at the uniform velocity inserts in the cement paste with 0.1-0.3m/s, measured once in per 15 minutes, when resistance reaches 2.95N ± 0.01N, and when the final set test point sinks to examination body 0.5mm, be that the final set test point begins can not be when examination be left a trace on the body, for cement reaches the final set state.
For this reason, the invention provides a kind of cement normal consistency that adopts this kind measuring method and setting time measurement mechanism: mainly form by control panel, test probe, probe hoisting gear, probe translation mechanism, cement conservation case and displacement transducer.Test probe can be installed bar, initial set test point and final set test point simultaneously, realizes switching between each test point or bar by changing pin mechanism.Change pin mechanism the disk position recognition device be installed simultaneously, by block with near the various combination of switch, realize the automatic identification of test point position.Top at test probe also is equipped with overload protection arrangement, and when fortuitous event appearred in equipment, the protection test probe was avoided damaging.
The invention has the beneficial effects as follows:
1, adopts the method for direct dynamometry to measure cement normal consistency and setting time, improved measuring accuracy;
2, a plurality of test points or bar are installed simultaneously on the test probe, are realized having improved efficiency of measurement from moving pin;
3, on an equipment, lay a plurality of cement die trials, can measure different batches, different types of cement simultaneously.
Description of drawings
Fig. 1 be cement normal consistency and setting time the measurement mechanism schematic diagram;
Fig. 2 is the test probe side view;
Fig. 3 is for changing pin mechanism cut-open view;
Fig. 4 is a disk position recognition device schematic diagram;
Fig. 5 is the overload protection arrangement cut-open view;
Fig. 6 is a cement conservation case cut-open view
Embodiment
As Fig. 1 and shown in Figure 6, cement normal consistency and setting time measurement mechanism form by control panel 1, test probe 2, probe hoisting gear 3, probe translation mechanism 4, cement conservation case 5 and displacement transducer 29.Die trial 27 is placed in the cement conservation case 5, and probe translation mechanism 4 is delivered to test point the cement die trial top that needs test by the tangential movement of X-Y direction.Probe hoisting gear 3 is installed on probe translation mechanism 4, test probe 2 is installed again on it.When probe translation mechanism 4 moved to the top of tested die trial 27 with test probe 2, maintenance chamber door 28 was opened automatically, and probe hoisting gear 3 drives test probe 2 and falls to finishing measuring process.
As shown in Figure 2, test probe by overload protection arrangement 9, upper connecting rod 10, force cell 11, lower connecting rod 8, change pin mechanism 6 and form.Wherein the two ends of force cell 11 link to each other with upper and lower connecting link by screw thread respectively.Lower connecting rod 8 links by screw thread and casing 19, plays the whole effect of changing pin mechanism 6 of supporting.Change bar 31, initial set test point 12 and final set test point 30 are installed in the pin mechanism 6 simultaneously.
As shown in Figure 3 and Figure 4, change pin mechanism by motor 7, rotating disk 13, near switch 14, block 15, pallet 16, instead form by register pin 17, transmission shaft 18, casing 19 and bearing 20.Motor 7 is installed on the casing 19, and its output shaft links to each other with the right-hand member of transmission shaft 18, and the left end of transmission shaft 18 links to each other with pallet 16 again, and pallet 16 rotates by anti-17 drives are installed on the rotating disk 13 by register pin test point or the bar that connects thereon.Accurately locate the groove that has and instead match on the casing 19 close outer surfaces of rotating disk 13 in order to guarantee test point or bar by register pin 17.In order to overcome the anti-deflecting torque of bringing by register pin 17, with three identical anti-outsides that are arranged in transmission shaft 18 by register pin 17 with 120 ° of intervals.
Will guarantee following 2 points in test point transposition process: transposition back test point or bar need have certain bearing accuracy; The position of each test point of transposition back can be detected.Therefore, the above-mentioned pin mechanism that changes not only to be arranged, corresponding transposition process also will be arranged as the basis.At first, motor 7 drives pallet 16 by transmission shaft 18 and rotates, pallet 16 relies on anti-by 13 rotations of register pin 17 drive rotating disks again, when forwarding the position location to, block 15 on the rotating disk 13 triggers near switch 14, stop after angle of motor 7 counter-rotating, this method can be avoided in the real work owing to fail in inertial force that rotating disk 13 produces or the mistiming between detection and the motor stall location of causing.In this process, motor 7 reverse indexings are apart from weak point, inertial force is less, in addition with anti-different by the match two sides angle of groove of register pin 17, make motor 7 to drive rotating disk 13 rotations by forward, in when counter-rotating in case anti-fall into groove by register pin 17 after rotating disk 13 by locked, thereby guarantee that it can accurately locate.
For detecting the position of each test point or bar at any time, designed the disk position recognition device.Its function has two: indicate each test point position; After rotating disk is just forwarding the position to, stall after angle of indication motor counter-rotating.The disk position recognition device by block 15 with forms near switch 14, its with the relative position that instead leans on register pin 17 as shown in Figure 4.On casing 19, locate to be provided with two near switch at a distance of 120 °, correspondingly on rotating disk 13, also two blocks are set at a distance of 120 °.By various combination, can judge the particular location of current rotating disk 13 near switch 14 and block 15.
Following three kinds of combined situation can be arranged specifically:
1, two all have signal near switch;
2, one has signal near switch, and another does not have signal;
3, opposite with second kind of situation.
As shown in Figure 5, overload protection arrangement can be divided into following a few part: near switch 23, spring 24, locking steel ball 25, locking spring 26, housing 21, upper connecting rod 10, end cap 22.Locking spring pushes up two locking steel balls in the groove in the housing 21 under normal operation.When test probe 2 suffered resistances surpassed safety value, power passed to overload protection arrangement by upper connecting rod 10, forced locking steel ball 25 to overcome spring force and extruded in groove, made to move on the upper connecting rod 10.Behind upper connecting rod 10 rising certain distances, trigger and send overload signal near switch 23, entire equipment shuts down, and waits for that operating personnel handle.Treat that the safety feature back equipment that resets can proceed to measure.Spring 24 can play the direct bump that buffer protection function avoids being subjected near switch 23 upper connecting rod 10.
Claims (4)
- A cement normal consistency and setting time measurement mechanism, it is characterized in that, test probe (2) links with probe hoisting gear (3), probe hoisting gear (3) links with probe translation mechanism (4) or displacement transducer (29), and probe translation mechanism (4) links with the upper surface of cement conservation case (5).
- 2. test probe according to claim 1; it is characterized in that overload protection arrangement (9) links with upper connecting rod (10), upper connecting rod (10) links with force cell (11); force cell (11) and lower connecting rod (8) link, lower connecting rod (8) with change pin mechanism (6) and link.
- 3. overload protection arrangement according to claim 2, it is characterized in that, housing (21) links with probe hoisting gear (3), the top of housing (21) and end cap (22) link, end cap (22) with link near switch (23), the inboard end with spring (24) of end cap (22) links, and the shaft shoulder of spring (24) other end and upper connecting rod (10) links, and the other end of upper connecting rod (10) shaft shoulder then links with housing (21) bottom surface; Be connected with a pair of locking steel ball (25) or locking spring (26) in the through hole that the shaft shoulder of upper connecting rod (10) directly makes progress, the two ends of locking spring (26) link with a pair of locking steel ball (25) respectively, locking steel ball (25) again with housing (21) inwall on groove link.
- 4. the pin mechanism that changes according to claim 2 is characterized in that, casing (19) links with motor (7) or bearing (20), and bearing (20) links with transmission shaft (18); The output shaft of motor (7) links to each other with transmission shaft (18) right-hand member, transmission shaft (18) left end and pallet (16) link, pallet (16) links by register pin (17) left end with anti-, instead links by register pin (17) and rotating disk (13), and rotating disk (13) links with block (15); Anti-right-hand member and casing (19) by register pin (17) links; Rotating disk (13) and bar (31) or initial set test point (12) or final set test point (30) link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710013682XA CN101271101A (en) | 2007-03-19 | 2007-03-19 | Measuring apparatus for cement standard consistency and setting time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710013682XA CN101271101A (en) | 2007-03-19 | 2007-03-19 | Measuring apparatus for cement standard consistency and setting time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101271101A true CN101271101A (en) | 2008-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710013682XA Pending CN101271101A (en) | 2007-03-19 | 2007-03-19 | Measuring apparatus for cement standard consistency and setting time |
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| CN (1) | CN101271101A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163284A (en) * | 2013-02-27 | 2013-06-19 | 浙江土工仪器制造有限公司 | Tester of cement setting time |
| CN103278388A (en) * | 2013-06-19 | 2013-09-04 | 福州大学 | Method and device for testing initial setting time of pavement concrete |
| CN104215555A (en) * | 2013-10-15 | 2014-12-17 | 济南鲁珍堂阿胶制品有限公司 | Determination apparatus for decocting duration of donkey-hide gelatins |
| CN104502233A (en) * | 2014-12-08 | 2015-04-08 | 柳州铁道职业技术学院 | FPGA-based cement thickness tester |
| CN105004637A (en) * | 2015-08-06 | 2015-10-28 | 河北科析仪器设备有限公司 | Cement setting time tester |
| WO2016019727A1 (en) * | 2014-08-04 | 2016-02-11 | 葛洲坝集团试验检测有限公司 | Device utilizing natural vibration frequency of cement-based material to detect setting time thereof |
| CN105784521A (en) * | 2016-04-29 | 2016-07-20 | 长江水利委员会长江科学院 | Full-automatic concrete penetration resistance meter and concrete setting time measuring method |
| CN106018759A (en) * | 2016-07-10 | 2016-10-12 | 北京慧物科联科技有限公司 | Full-automatic slurry initial setting and final setting time measuring device and method |
| CN106404606A (en) * | 2016-09-18 | 2017-02-15 | 宁波亿德仪器科技有限公司 | Testing device of concrete setting time |
| CN108169072A (en) * | 2017-12-15 | 2018-06-15 | 北京市建设工程质量第二检测所有限公司 | A kind of cement normal consistency water consumption assay method |
| CN108490161A (en) * | 2018-06-25 | 2018-09-04 | 长沙海纳光电科技有限公司 | A kind of Full-automatic cement setting time measurement device |
| CN110568168A (en) * | 2019-09-12 | 2019-12-13 | 李玉璋 | automatic concrete setting time check out test set of centering |
-
2007
- 2007-03-19 CN CNA200710013682XA patent/CN101271101A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163284A (en) * | 2013-02-27 | 2013-06-19 | 浙江土工仪器制造有限公司 | Tester of cement setting time |
| CN103278388A (en) * | 2013-06-19 | 2013-09-04 | 福州大学 | Method and device for testing initial setting time of pavement concrete |
| CN104215555A (en) * | 2013-10-15 | 2014-12-17 | 济南鲁珍堂阿胶制品有限公司 | Determination apparatus for decocting duration of donkey-hide gelatins |
| WO2016019727A1 (en) * | 2014-08-04 | 2016-02-11 | 葛洲坝集团试验检测有限公司 | Device utilizing natural vibration frequency of cement-based material to detect setting time thereof |
| CN104502233A (en) * | 2014-12-08 | 2015-04-08 | 柳州铁道职业技术学院 | FPGA-based cement thickness tester |
| CN105004637B (en) * | 2015-08-06 | 2017-06-30 | 河北科析仪器设备有限公司 | A kind of cement setting time analyzer |
| CN105004637A (en) * | 2015-08-06 | 2015-10-28 | 河北科析仪器设备有限公司 | Cement setting time tester |
| CN105784521B (en) * | 2016-04-29 | 2018-10-12 | 长江水利委员会长江科学院 | A kind of full-automatic injection resistance meter of concrete and setting time measurement method |
| CN105784521A (en) * | 2016-04-29 | 2016-07-20 | 长江水利委员会长江科学院 | Full-automatic concrete penetration resistance meter and concrete setting time measuring method |
| CN106018759A (en) * | 2016-07-10 | 2016-10-12 | 北京慧物科联科技有限公司 | Full-automatic slurry initial setting and final setting time measuring device and method |
| CN106404606A (en) * | 2016-09-18 | 2017-02-15 | 宁波亿德仪器科技有限公司 | Testing device of concrete setting time |
| CN106404606B (en) * | 2016-09-18 | 2019-02-19 | 宁波亿德仪器科技有限公司 | Concrete coagulating time measurement device |
| CN108169072A (en) * | 2017-12-15 | 2018-06-15 | 北京市建设工程质量第二检测所有限公司 | A kind of cement normal consistency water consumption assay method |
| CN108169072B (en) * | 2017-12-15 | 2020-06-16 | 北京市建设工程质量第二检测所有限公司 | Method for measuring water consumption of standard consistency of cement |
| CN108490161A (en) * | 2018-06-25 | 2018-09-04 | 长沙海纳光电科技有限公司 | A kind of Full-automatic cement setting time measurement device |
| CN108490161B (en) * | 2018-06-25 | 2024-04-12 | 长沙海纳光电科技有限公司 | Full-automatic cement setting time measuring device |
| CN110568168A (en) * | 2019-09-12 | 2019-12-13 | 李玉璋 | automatic concrete setting time check out test set of centering |
| CN110568168B (en) * | 2019-09-12 | 2021-11-26 | 东台欣创混凝土制品有限公司 | Automatic concrete setting time check out test set of centering |
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Open date: 20080924 |