CN105403687A - Concrete slump test vehicle - Google Patents
Concrete slump test vehicle Download PDFInfo
- Publication number
- CN105403687A CN105403687A CN201510944741.XA CN201510944741A CN105403687A CN 105403687 A CN105403687 A CN 105403687A CN 201510944741 A CN201510944741 A CN 201510944741A CN 105403687 A CN105403687 A CN 105403687A
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- China
- Prior art keywords
- portal frame
- table top
- arranges
- slump test
- flat board
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; ceramics; glass; bricks
- G01N33/383—Concrete, cement
Abstract
The invention discloses a concrete slump test vehicle. The concrete slump test vehicle comprises a test barrel, a handcart, a tamping mechanism, a measure mechanism and a cleaning mechanism; the table top of the handcart is provided with a flat plate with adjustable height and angle, three-dimension adjusting capability is provided, and levelling is facilitated; on the table top, a linear slide rail is provided with a first portal frame and a second portal frame, the tamping mechanism is arranged on the first portal frame, and the measure mechanism is arranged on the second portal frame; the cleaning mechanism is arranged on the flat plate and is cooperated with a blanking port on the table top for usage; and a concrete recovery barrel is fixedly disposed under the blanking port. The concrete slump test vehicle is applicable to on-site concrete slump test, the levelness of the test platform is adjusted according to the site, the measure result precision is guaranteed, tamping operation, demolding strength and the process are relatively standard, and support is provided for accurately measuring the concrete slump.
Description
Technical field
This invention relates to slump testing tool technical field, specifically a kind of slump test carriage that be convenient to movable type, that can realize standardization measurement.
Background technology
The concrete plasticizing capacity of slump key reaction and pumpable performance, affect slump principal element to have starting material, mixing time, Transport Machinery, speed of perfusion, build the time etc., consumption and the easy unheeded cement temperatures of another additive also can influence indexs.
Slump refers to concrete workability, is exactly ensure normally carrying out of construction specifically, comprising concrete water-retaining property, and mobility and cohesiveness.
The method of testing of existing conventional slump: with a 100mm suitable for reading, end opening 200mm, the trumpet-shaped slump bucket of high 300mm, tamping after penetration concrete, then bucket is pulled up, concrete is because of deadweight generation slump phenomenon, deduct the height of concrete peak after slump with bucket high (300mm), be called slump, with reference to figure 1, if difference is 10mm, then slump is 10.
The slump such as, announced in Chinese patent literature CN202330423U detects bucket, in other words above-mentioned detection method use one in instrument.
The subject matter that existing method of testing exists is:
Operate inadequate specification, completely by personnel control, such as tamping is according to the strength size of operating personnel, the density difference to some extent of its tamping, rises in bucket process, and concrete can glue to be paid on bucket wall, form negative-pressure adsorption power, sample is elongated in the height direction, causes the man-made further destroy of sample, impact test effect.
Whether level has material impact to test result to test platform, and existing test process is exactly carry out on the ground testing substantially, can not ensure the levelness of platform.
Amid all these factors, existing testing tool is had much room for improvement.
Summary of the invention
Find in work progress at the scene, current slump test is relatively lack of standardization, standardization, standardized operation can not be realized, slump fieldtesting results error is large, in order to the concrete on-the-spot slump test of specification, improve the accuracy of the on-the-spot slump test of concrete, make slump test carriage, improve the combination property of test.
The technical solution adopted for the present invention to solve the technical problems is:
Slump test carriage, is characterized in that: comprise
Test barrel, is provided with flanging in the bottom of test barrel, arranges and picks up the ears, and on picking up the ears, arrange wire rope and hook in the outer upper of test barrel;
Trolley, trolley has a table top, table top is provided with the flat board that can regulate height and angle, is hinged with three rod members in the downside of flat board, between described rod member and flat board, adopts ball-joint, pass table top in the middle part of described rod member and extend to downside, the axis hole of one worm gear is threaded hole and coordinates with the thread segment on rod member, and the table top downside of correspondence arranges a worm screw, and described worm and wheel coordinates, worm screw extends to side, and arranges handle in end;
Flat board is installed horizontal and vertical bubble and scale;
A side plate is fixed respectively in the both sides of flat board, a pilot region is formed together with flat board, test barrel is placed in described Experimental Area, at the rear side of flat board, first cylinder is set, described first cylinder is for being horizontally disposed with, the piston rod of the first cylinder installs a push pedal, and push pedal is slided along side plate direction;
The table top of dull and stereotyped both sides arranges a pair line slide rail, described line slide rail is arranged the first portal frame and the second portal frame,
First portal frame arranges the second cylinder, piston rod arranges down and fixes the head that expands of a tamping at end, and be provided with circular hole expanding on head, the both sides heel post of the first portal frame arranges a push rod respectively, push rod to be locked on column by two nuts and position is adjustable, at the top of push rod by form active link arc pressure strip of ball-joint; Described first portal frame can be shifted one's position along line slideway, and arranges locking device between the first portal frame and table top;
The top center position of the second portal frame is provided with vertical rule;
Be provided with a blanking port away from the described table top of push pedal side, below blanking port, fix a concrete recycle bucket.
Further, described locking device is: on first gantry, arrange pin-and-hole, the table top at the locking position of correspondence arranges a projection, projection arranges pin-and-hole, locked by the first portal frame by round pin.
Further, the second portal frame centre is provided with a rubber plug, be provided with a gap in described rubber plug, described rule just interts in gap.
Further, sheet rubber is used to carry out shutoff between described flat board and table top.
Further, described recycling bin is multiple.
Further, described push pedal is plastic scrapers.
The invention has the beneficial effects as follows: there is following function:
By leveling, levelling function, can ensure that coagulation mound to be tested is in best state, avoid producing tilt phenomenon, can ensure authenticity and the validity of slump process.
Play mold process steadily effective, assist molding by cylinder, the problem such as double swerve, deflection avoiding both hands molding to bring, and be conducive to realizing quick molding, improve the integrality of initial model.
Be convenient to clean, cleaned by push pedal, more fast with effective.
This slump test carriage is applicable to the test of on-site concrete slump, the levelness carrying out regulating test platform can be regulated according to place, ensure the accuracy of measurement result, tamping, demoulding dynamics, process comparatively specification, support is provided for measuring slump accurately, and then better can control site operation, improve construction quality.
Accompanying drawing explanation
Fig. 1 is the theoretical view of slump test.
Fig. 2 is schematic diagram of the present invention.
Fig. 3 is stereographic map of the present invention (removal test barrel).
Fig. 4 is the stereographic map of test barrel.
Fig. 5 is stereographic map of the present invention.
Fig. 6 is the vertical view of Fig. 5.
Fig. 7 is the longitudinal sectional view of Fig. 5.
Fig. 8 is the transverse sectional view of Fig. 5.
Fig. 9 is the structural drawing of rod member, worm and gear.
Figure 10 is overall schematic of the present invention.
In figure: 1 test barrel, 11 flangings, 12 pick up the ears, 13 wire rope and hook, 2 trolleys, 21 road wheels, 22 table tops, 23 handles, 3 recycling bins, 31 blanking ports, 4 is dull and stereotyped, 41 rod members, 42 ball-joints, 43 sleeves, 44 screw threads, 45 worm gears, 46 worm screws, 48 bubble and scales, 47 side plates, 5 pilot regions, 51 first cylinders, 52 push pedals, 6 line slide rails, 61 first portal frames, 611 expand head, 612 second cylinders, 613 circular holes, 614 push rods, 615 nuts, 616 arc pressure strips, 617 locking devices, 62 second portal frames, 621 rules, 7 sheet rubbers.
Embodiment
For existing defect, exploitation be a kind of slump test carriage, change test carriage into by original single test bucket, fundamental purpose be improve test accuracy and standardization, avoid the adverse effect that manual operation brings.
Its basic principle changes hand punning into mechanical puddling, and dynamics, the time of tamping can set, and forms standardization, increases the Level tune function of platform, forms horizontality, and improve overall operating performance and operation convenience further.
Based on above-mentioned description, shown in composition graphs 2 to Figure 10, below its structure is described in detail:
Installation testing cylinder 1, this test barrel 1 entirety is conical, as Fig. 4, is provided with flanging 11 in the bottom of test barrel, for contacting with platform, increases contact area.And pick up the ears 12 in the outer upper setting of test barrel 1, for lifting and hanging, and wire rope and hook 13 are set on picking up the ears.Above-mentioned test barrel carries out improving on traditional test barrel basis being formed.
Trolley 2, adopt stainless steel to carry out welding to be formed, there is road wheel 21, table top 22 and handle 23, wherein table top 22 is stainless steel platform, for the main occasion of experiment, below for reclaim space, recovery space in recycling bin 3 is set, wherein recycling bin 3 shape the best be rectangle staving.Road wheel is the universal wheel with locking mechanism, realizes real-time locking.
On table top 22, centre position is provided with the flat board 4 that can regulate height and angle, particularly, three rod members 41 are hinged with in the downside of dull and stereotyped 4, three adopt the pattern of ball-joint 42 to be connected between rod member with flat board, namely, can rotate at three rod members 41, through the sleeve 43 be positioned on table top in the middle part of three rod members 41, wherein, one section of screw thread 44 is formed at rod member hypomere, wherein, another one worm gear 45, the axis hole of worm gear 45 is processed into threaded hole, this threaded hole coordinates with the thread segment on rod member 41, the table top downside of correspondence is arranging a worm screw 46, worm and wheel coordinates, formed and drive, worm screw 46 extends to side, and handle is set, for controlling the rotation of worm gear, and then drive the motion of rod member in the vertical direction.
Be independent of each other between three above-mentioned rod members 41, dull and stereotyped levelness can be regulated by controlling different rod members, further, flat board being installed horizontal and vertical bubble and scale 48, being used to indicate dull and stereotyped levelness.
When trolley 2 is positioned on slope, by regulating above-mentioned flat board 4 to level, the test job under varying environment can be realized.
A side plate 47 is fixed respectively in the both sides of dull and stereotyped 4, a pilot region 5 is formed together with flat board, test barrel is placed in Experimental Area, at the rear side free space of flat board, first cylinder 51 is set, first cylinder is for being horizontally disposed with, the piston rod of the first cylinder 51 installs a push pedal 52, and push pedal adopts plastic scrapers, for clearing up the cement residue on flat board.
The table top of dull and stereotyped 4 both sides arranges a pair line slide rail 6, line slide rail 6 is arranged the first portal frame 61 and the second portal frame 62, wherein the first portal frame 61 size is larger, first portal frame arranges the second cylinder 612, the wherein middle position being vertically arranged on the first portal frame of the second cylinder 612, piston rod is arranged down, what piston-rod end fixed a tamping expands 611, and be provided with circular hole 613 expanding on head, this circular hole 613 is subsidiary function hole, has certain effect at molding stage tool.
The both sides heel post of the first portal frame 61 arranges a horizontal push rod 614 respectively, push rod local has screw thread, push rod is locked by two nuts 615, and position is adjustable, at the top of push rod 614 by form active link arc pressure strip 616 of ball-joint, arc pressure strip 616 acts directly on the middle part of test barrel 1 outer wall, above-mentioned test barrel is fixed on dull and stereotyped 4 by two pressure strips.
First above-mentioned gantry 61 frame can be shifted one's position along line slideway, and need to lock according to position, locking device 617 is wherein, first gantry 61 arranges pin-and-hole, the table top at the locking position of correspondence arranges a projection, projection arranges pin-and-hole, by round pin, the first portal frame is locked.
Second portal frame 62, for measuring support, is also be arranged on line slide rail 6 by slide block, and is provided with the pin-and-hole of locking in the side of the second portal frame, and the top center position of the second portal frame is provided with vertical rule 621.Particularly, the second portal frame centre is provided with a rubber plug, in rubber plug, is provided with a gap, rule 621 just interts in gap, by the distortion of rubber plug, above-mentioned rule is clamped in certain position, and can twitches, for measuring slump.
Using sheet rubber 7 to carry out shutoff between above-mentioned flat board 4 and table top 22, in the space preventing cement dirt from proceeding between the two, is safeguard procedures.
Described table top away from push pedal 52 side is provided with a blanking port 31, is rectangle, fixes a concrete recycle bucket 3 below blanking port, and the existence of this recycling bin makes the concrete after testing to be recovered timely.
As improving further, recycling bin is multiple, arranges multiple, select as required in the below of table top, and carries out of short duration storage.
The first above-mentioned cylinder and the second cylinder controlled starting control system are routine techniques.
Using method is as follows:
Trolley is pushed into suitable place, then regulate dull and stereotyped to horizontality, test barrel is placed on flat board, concrete slurry is filled to test barrel inside by funnel, then the first portal frame moved and fix, by the arc of both sides, above-mentioned test barrel is compressed, start the first cylinder, under the to-and-fro movement of the first cylinder, carry out tamping operation, cylinder tamping, dynamics can control and more accurate, and carry out concrete feed supplement according to the situation of tamping, finally reach the height of requirement of experiment, then funnel is removed, and strike off at the top of test barrel.
The wire rope of test barrel both sides being expanded on the through hole of head with hanging over, being formed and connecting, finally under the effect of the first cylinder, above-mentioned test barrel being separated with coagulation mound to be tested.
After separation, the first portal frame is moved correct position, and the second portal frame is moved, stand-by, after the stipulated time, carry out the difference in height measuring slump, obtain slump numerical value, complete test.
Embodiment recited above is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; relevant technical staff in the field, to various distortion of the present invention and improvement, all should expand in protection domain as determined in claims of the present invention.
Claims (6)
1. slump test carriage, is characterized in that: comprise
Test barrel (1), is provided with flanging (11) in the bottom of test barrel, arrange and pick up the ears (12), and on picking up the ears, arrange wire rope and hook (13) in the outer upper of test barrel (1);
Trolley (2), trolley has a table top (22), table top (22) is provided with the flat board (4) that can regulate height and angle, three rod members (41) are hinged with in the downside of dull and stereotyped (4), ball-joint (42) is adopted between described rod member and flat board, described rod member (41) middle part is passed table top and is extended to downside, the axis hole of one worm gear (45) is threaded hole and coordinates with the thread segment on rod member (41), the table top downside of correspondence arranges a worm screw (46), described worm and wheel coordinates, worm screw (46) extends to side, and handle is set in end,
Flat board is installed horizontal and vertical bubble and scale (48);
A side plate (47) is fixed respectively in the both sides of dull and stereotyped (4), a pilot region (5) is formed together with flat board, test barrel is placed in described Experimental Area, at the rear side of dull and stereotyped (4), first cylinder (51) is set, described first cylinder (51) is for being horizontally disposed with, the piston rod of the first cylinder (51) installs a push pedal (52), and push pedal is slided along side plate direction;
The table top of dull and stereotyped (4) both sides arranges a pair line slide rail (6), described line slide rail (6) is arranged the first portal frame (61) and the second portal frame (62),
First portal frame arranges the second cylinder (612), piston rod arrange down and fix a tamping at end expand head (611), and be provided with circular hole (613) expanding on head, the both sides heel post of the first portal frame (61) arranges a push rod (614) respectively, push rod to be locked on column by two nuts (615) and position is adjustable, at the top of push rod (614) by form active link arc pressure strip (616) of ball-joint; Described first portal frame (61) can be shifted one's position along line slideway, and between the first portal frame and table top, arrange locking device (617);
The top center position of the second portal frame (62) is provided with vertical rule (621);
Described table top away from push pedal (52) side is provided with a blanking port (31), below blanking port, fixes a concrete recycle bucket (3).
2. slump test carriage according to claim 1, it is characterized in that, described locking device is: on first gantry (61), arrange pin-and-hole, the table top at the locking position of correspondence arranges a projection, projection arranges pin-and-hole, by round pin, the first portal frame is locked.
3. slump test carriage according to claim 1, is characterized in that, the second portal frame centre is provided with a rubber plug, is provided with a gap in described rubber plug, and described rule (621) just interts in gap.
4. slump test carriage according to claim 1, is characterized in that, uses sheet rubber (7) to carry out shutoff between described flat board (4) and table top (22).
5. slump test carriage according to claim 1, is characterized in that, described recycling bin is multiple.
6. slump test carriage according to claim 1, is characterized in that, described push pedal is plastic scrapers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510944741.XA CN105403687B (en) | 2015-12-16 | 2015-12-16 | Concrete slump test vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510944741.XA CN105403687B (en) | 2015-12-16 | 2015-12-16 | Concrete slump test vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105403687A true CN105403687A (en) | 2016-03-16 |
| CN105403687B CN105403687B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510944741.XA Active CN105403687B (en) | 2015-12-16 | 2015-12-16 | Concrete slump test vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN105403687B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340384A (en) * | 2017-09-15 | 2017-11-10 | 闫大勇 | A kind of device for slump detection |
| CN108020653A (en) * | 2017-10-31 | 2018-05-11 | 中国二十冶集团有限公司 | A kind of slump measuring scale and its application method |
| CN112345738A (en) * | 2020-10-26 | 2021-02-09 | 湖南中昊建设项目管理有限公司 | Slump meter |
| CN112540041A (en) * | 2020-12-04 | 2021-03-23 | 江苏五环建设有限公司 | Automatic concrete slump rapid detection device for building |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07218500A (en) * | 1994-02-08 | 1995-08-18 | Fujita Corp | Slump tester |
| JP2005249630A (en) * | 2004-03-05 | 2005-09-15 | Takenaka Komuten Co Ltd | Total inspection method for fresh concrete and its device |
| CN101008640A (en) * | 2007-02-02 | 2007-08-01 | 中南大学 | Integrated device for measurement and evaluation of workability of self-compacting concrete |
| CN101592466A (en) * | 2009-07-02 | 2009-12-02 | 中天建设集团有限公司 | Mobile platform for slump test |
| CN201408188Y (en) * | 2009-05-11 | 2010-02-17 | 中天建设集团有限公司 | Moving platform of tests for testing concrete slump |
| CN203083993U (en) * | 2012-12-21 | 2013-07-24 | 江西迪特科技有限公司 | Automatic concrete slump constant determinator |
| CN203337656U (en) * | 2013-03-27 | 2013-12-11 | 郭奇 | Novel working performance tester of high-slump concrete |
| CN203658355U (en) * | 2014-01-03 | 2014-06-18 | 长安大学 | Portable cement concrete slump measurement device |
| CN203965278U (en) * | 2014-05-27 | 2014-11-26 | 中国十七冶集团有限公司 | One is concrete slump proving installation movably |
| CN204462137U (en) * | 2015-01-07 | 2015-07-08 | 中国建筑第八工程局有限公司 | Slump measurement mechanism |
| CN205506827U (en) * | 2015-12-16 | 2016-08-24 | 山东送变电工程公司 | Slump test car |
-
2015
- 2015-12-16 CN CN201510944741.XA patent/CN105403687B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07218500A (en) * | 1994-02-08 | 1995-08-18 | Fujita Corp | Slump tester |
| JP2005249630A (en) * | 2004-03-05 | 2005-09-15 | Takenaka Komuten Co Ltd | Total inspection method for fresh concrete and its device |
| CN101008640A (en) * | 2007-02-02 | 2007-08-01 | 中南大学 | Integrated device for measurement and evaluation of workability of self-compacting concrete |
| CN201408188Y (en) * | 2009-05-11 | 2010-02-17 | 中天建设集团有限公司 | Moving platform of tests for testing concrete slump |
| CN101592466A (en) * | 2009-07-02 | 2009-12-02 | 中天建设集团有限公司 | Mobile platform for slump test |
| CN203083993U (en) * | 2012-12-21 | 2013-07-24 | 江西迪特科技有限公司 | Automatic concrete slump constant determinator |
| CN203337656U (en) * | 2013-03-27 | 2013-12-11 | 郭奇 | Novel working performance tester of high-slump concrete |
| CN203658355U (en) * | 2014-01-03 | 2014-06-18 | 长安大学 | Portable cement concrete slump measurement device |
| CN203965278U (en) * | 2014-05-27 | 2014-11-26 | 中国十七冶集团有限公司 | One is concrete slump proving installation movably |
| CN204462137U (en) * | 2015-01-07 | 2015-07-08 | 中国建筑第八工程局有限公司 | Slump measurement mechanism |
| CN205506827U (en) * | 2015-12-16 | 2016-08-24 | 山东送变电工程公司 | Slump test car |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340384A (en) * | 2017-09-15 | 2017-11-10 | 闫大勇 | A kind of device for slump detection |
| CN108020653A (en) * | 2017-10-31 | 2018-05-11 | 中国二十冶集团有限公司 | A kind of slump measuring scale and its application method |
| CN112345738A (en) * | 2020-10-26 | 2021-02-09 | 湖南中昊建设项目管理有限公司 | Slump meter |
| CN112540041A (en) * | 2020-12-04 | 2021-03-23 | 江苏五环建设有限公司 | Automatic concrete slump rapid detection device for building |
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| Publication number | Publication date |
|---|---|
| CN105403687B (en) | 2017-05-10 |
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