CN204903534U - Detection device for ready mixed mortar - Google Patents
Detection device for ready mixed mortar Download PDFInfo
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- CN204903534U CN204903534U CN201520626810.8U CN201520626810U CN204903534U CN 204903534 U CN204903534 U CN 204903534U CN 201520626810 U CN201520626810 U CN 201520626810U CN 204903534 U CN204903534 U CN 204903534U
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- push rod
- sensor
- test point
- transverse tube
- probe
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Abstract
The utility model relates to a detection device for ready mixed mortar belongs to the check out test set field, including elevating system, sensor, excess loading protector and probe, the probe includes supporting box, the bottom of second ejector pin and supporting box's top fixed connection, and one side of supporting box is equipped with the motor, and supporting box's opposite side is equipped with the detachable carousel, is equipped with a plurality of needling tests on the carousel. The device utilizes the probe top to be equipped with resistance and the displacement that the sensor measurements needling test received, utilize elevating system to reduce the external environment factor and to measuring result's influence, improve measurement of efficiency. Through the method that adopts the direct detection ready mixed mortar resistance, improve the holistic reliability of instrument. A plurality of needling tests are installed simultaneously in the utilization on the probe, realize reducing measuring error, reducing operating personnel's intensity of labour and measure the cost from moving the needle through motor and carousel. Utilize excess loading protector to avoid leading to probe or sensor to damage at the survey in -process because the resistance is too big.
Description
Technical field
The utility model relates to a kind of pick-up unit, particularly relates to a kind of premixing mortar pick-up unit.
Background technology
Premixing mortar refers to by specialized manufacturer production, for the various mortar mixtures in construction project, is a kind of New Building Materials that China's developed recently gets up, can be divided into common premixing mortar and extraordinary mortar by performance.20th century early fifties, European countries just start a large amount of production, use premixing mortar, so far the developing history of existing more than 50 year.Domestic Shanghai, the developed regions development such as Changzhou are very fast.Meanwhile, premixing mortar also progressively forbidding Site mortar, is promoted the use of in many cities.The environmental protection of advantage unsoundness, steady quality, energy-conservation comfortable etc.
Mortar: architectural lay bricks use cohere material, added water into by a certain proportion of sand and consolidating material (cement, lime paste, clay etc.), be also mortar, also make mortar.Mortar is formed by Binder Materials (cement, lime, clay etc.) and fine aggregate (sand) blunge.Conventional has sand-cement slurry, mixed mortar (or being cement-lime mortar), lime mortar and clay mortar.
When premixing mortar is marched into the arena, supplier should provide certificate of quality file by regulation batch to demanding party.Certificate of quality file should comprise product form survey report and Delivery Inspection Report etc.
Should visual testing be carried out when premixing mortar is marched into the arena, and meet the following requirements:
1. wet mixing mortar answers appearance uniform, without segregation, excreting water phenomenon;
2. loading dry-mixed mortar in bulk answers appearance uniform, without caking, phenomenon of making moist;
3. packed dry-mixed mortar answers Packing Intact, without making moist phenomenon.
According to GB/T25181-2010 " premixing mortar ", wet mixing mortar should carry out denseness inspection, and denseness permissible variation should meet following table:
Wet mixing mortar denseness deviation
Wet mixing mortar by professional production factory add water be stirred after transport to working-yard, and transport side amount more.Because mortar construction is still manual operations, speed of application is comparatively slow, and mortar can not use very soon, needs to store a period of time at the construction field (site).For providing convenience to construction, particularly making to deliver to on-the-spot mortar afternoon and can be stored into continuation use in the 2nd day, therefore the regulation wet mixing mortar the longest 24h that reaches design setting time, concrete setting time can be needed to determine according to mortar kind and construction by both sides of supply and demand.To be the die trial that contains mortar preserve the assay method of gauged mortar setting time under the room temperature condition of (20+2) DEG C in JGJ70-90 " building mortar basic performance tests method ", and measure once every 30min.Because wet mixing mortar is longer for setting time, as measured once every 30min, will cause that to measure number of times too many, and there is no need, therefore the minute of regulation wet mixing mortar setting time is taken as the l/4,1/2,3/4 and time corresponding to setting time of this mortar coagulation time.In addition, wet mixing mortar needs to be stored in closed container after transporting to scene, and the container containing mortar when therefore regulation is tested setting time should be stored in closed container.
Common dry-mixed mortar adds water at the scene and mixes and stirs, and with mixing, can not need to store the long time, thus specifying that its setting time is 3 ~ 8h.The test method of setting time can be undertaken by the regulation of JGJ70-90.
The utility model patent " a kind of Vicat apparatus " of application number CN201320623824.5 provides a kind of instrument of consumptive use of water normal consistence and setting time thereof for detecting cement paste, as shown in Figure 1, described Vicat apparatus comprises support 1, slide bar 4, scale 2, lock screw 8 and auxiliary stopper sheet 5 etc., when measuring the cement paste presetting period, first by commutation screw 3, long-armed one end of auxiliary stopper sheet 5 is upwards connected on slide bar 4, glass plate 10 and die trial 9 are placed on the objective table 12 of support 1, initial set test point 7 is installed on slide bar 4 by the inner bolt hole 11 of the slide-and-guide portion 4b of slide bar 4, regulate slide bar 4 that initial set test point 7 is just contacted with only starching, limiting section 4a guarantees that instrument can not be consolidated misoperation and touch brokenly glass, by lock screw 8, slide bar 4 is locked on support 1, carry out operation by corresponding operation steps and method afterwards and complete cement paste presetting period mensuration.
When carrying out the mensuration of consumptive use of water normal consistence, making long-armed one end of auxiliary stopper sheet 5 pass downwardly through commutation screw 3 is connected on slide bar 4 by auxiliary stopper sheet 5, replace initial set bar 7 with corresponding bar, carry out by corresponding operation steps and method the mensuration having operated consumptive use of water normal consistence afterwards.
But in actual application, its existing defects: first described Vicat apparatus reflects resistance suffered by it indirectly mainly through the degree of depth detecting initial set test point 7 and rely on own wt to sink in test specimen, and bioassay standard denseness water consumption and setting time accordingly.Initial set test point 7 is the spacing lower maintenance vertical drops in Vicat apparatus frame, there is mechanical friction therebetween, and friction force is often by the impact of the factors such as lubrication circumstances, tolerance clearance and variation of ambient temperature, affect the precision of mensuration conversely, so measurement result fluctuation is larger, it needs operating personnel repeatedly to measure test specimen by predetermined time interval, just can determine net result.When bioassay standard denseness water consumption, equal, to the additional downward power of normal consistency slide bar 4, in experiment, to find that this is all influential to mensuration cement consistency if Overexertion unclamps lock screw 8.In sum, when above-mentioned Vicat apparatus measures cement normal consistency water consumption and setting time, labor intensity of operating staff is large, and determination efficiency is low.
Utility model content
The deficiency that the utility model exists for prior art, provide a kind of premixing mortar pick-up unit, concrete technical scheme is as follows:
A kind of premixing mortar pick-up unit, comprise the stand being positioned at bottom, the pedestal being positioned at top, test the die trial and glass plate that use, described premixing mortar pick-up unit is also provided with elevating mechanism, sensor, overload protection arrangement and probe, the bottom of elevating mechanism is fixedly connected with stand, elevating mechanism is provided with lifting slider, and lifting slider is fixedly connected with pedestal; Be provided with the first push rod between pedestal and sensor, be fixedly connected with between pedestal and sensor by push rod, the top of sensor is provided with back taper connecting rod, and the bottom of connecting rod is connected with overload protection arrangement, and the bottom of overload protection arrangement is provided with the second push rod; Described probe comprises support box, and the bottom of the second push rod is fixedly connected with the top of support box, and the side of support box is provided with motor, and the opposite side of support box is provided with dismountable rotating disk, rotating disk is provided with multiple test point, is symmetric between test point.
As the improvement of technique scheme, described overload protection arrangement comprises shell and top cover, is fixedly connected with between sensor with top cover by connecting rod, and top cover central authorities are provided with proximity switch, the upper end of proximity switch is connected with sensor, and the lower end of proximity switch is arranged on the inside of shell; The inside of shell is provided with the 3rd push rod and transverse tube, and the 3rd push rod is arranged on immediately below proximity switch, and the 3rd is provided with gap between push rod and proximity switch; The bottom center of shell is provided with the through hole for the second push rod turnover, and the top of the second push rod is fixedly connected with the bottom of transverse tube, and the top of transverse tube is fixedly connected with the bottom of the 3rd push rod; Gap is provided with between the both sides of transverse tube and the inwall of shell, transverse tube inside is provided with the first spring and two balls, connected by the first spring between two balls, the inwall of shell is provided with the arc groove matched with ball, the second spring is provided with between top cover and transverse tube, one end of second spring is connected with the bottom surface of top cover, and the other end of the second spring is connected with transverse tube.
As the improvement of technique scheme, the diameter of described ball equals the internal diameter of transverse tube.
As the improvement of technique scheme, described test point is one or several in normal consistency bar, initial set test point or final set test point.
Premixing mortar pick-up unit described in the utility model mainly utilizes above probe, to be provided with the resistance that is subject to of test point in sensor measurement probe and displacement, during mensuration, because test point is at the uniform velocity fallen by the driving of elevating mechanism, avoid test point in decline process, friction force is on the impact measured, thus further reduction outside environmental elements measures on consumptive use of water normal consistence and setting time the impact caused, and improve measurement efficiency.Because this device adopts the method for direct-detection premixing mortar resistance, eliminate the structure of folding and unfolding test point in existing instrument, thus improve the reliability of instrument entirety.Utilize, on probe, multiple test point is installed simultaneously, realize automatic needle exchange by motor and rotating disk and not only reduce measuring error, but also reduce the labour intensity of operating personnel and measure cost.Avoid the whereabouts reason due to elevating mechanism in mensuration process to cause resistance excessive by overload protection arrangement, cause probe or the sensor degradation of precision.
Accompanying drawing explanation
Fig. 1 is the structural representation of Vicat apparatus described in background technology;
Fig. 2 is premixing mortar structure of the detecting device schematic diagram described in the utility model;
Fig. 3 is shell mechanism schematic diagram described in the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figures 2 and 3, Fig. 2 is premixing mortar structure of the detecting device schematic diagram described in the utility model, and as shown in Figure 3, Fig. 3 is shell mechanism schematic diagram described in the utility model.Described premixing mortar pick-up unit, comprise the stand 21 being positioned at bottom, the pedestal 22 being positioned at top, the die trial 23 testing use, glass plate 24, elevating mechanism 25, sensor 26, overload protection arrangement and probe, the bottom of elevating mechanism 25 is fixedly connected with stand 21, elevating mechanism 25 is provided with lifting slider 251, and lifting slider 251 is fixedly connected with pedestal 22; Lifting slider 251, under elevating mechanism 25 drives, can at the uniform velocity rise or fall.Be provided with the first push rod 27 between pedestal 22 and sensor 26, be fixedly connected with between pedestal 22 and sensor 26 by push rod 27, sensor 26 can be subject to size and the shift value of resistance by measuring sonde; For ensureing the bottom uniform force of sensor 26, prevent sensor 26 under the effect being subject to outrange power, occurring damage or cause malfunctioning, the top of sensor 26 is provided with back taper connecting rod 28; For preventing the whereabouts reason due to elevating mechanism 25 in mensuration process from causing resistance excessive, cause probe or the sensor of precision 26 damages, the bottom of connecting rod 28 is connected with overload protection arrangement, and the bottom of overload protection arrangement is provided with the second push rod 29; Described probe comprises support box 41, the bottom of the second push rod 29 is fixedly connected with the top of support box 41, and the side of support box 41 is provided with motor 42, and the opposite side of support box 41 is provided with dismountable rotating disk 43, rotating disk 43 is provided with multiple test point 44, is symmetric between test point 44.Test point 44 requires one or several in different alternatives denseness bar, initial set test point or final set test point according to mensuration.
In mensuration process, mensuration process will certainly be interrupted according to manual needle exchange method and result precision can be affected.For avoiding the precision occurring deviation effects measurement result after needle exchange between test point 44 axis and direction of motion, simultaneously for avoiding test point 44 after transposition, because External force interference changes position, described probe adopts multiple needle designs, namely probe installs multiple test point 44 simultaneously, and automatic needle exchange can be realized.Without the need to human intervention in whole mensuration process, the labour intensity of operating personnel can be reduced.And existing Vicat apparatus and automatic testing apparatus for cement setting time generally are single-needle design, namely every platform analyzer can only install a bar or a test point.To measure other two parameters, or adopt manual needle exchange, or adopt the networking of multiple stage analyzer to measure.Adopt that needle exchange mode all can increase the investment of labor intensity of operating staff or instrument, and then improve cement normal consistency water consumption and the cost of determination of setting time.Normal consistency bar, initial set test point and final set test point are arranged on rotating disk 43 simultaneously, under the effect of motor 42, realize the switching between test point 44; If damaging appears in test point 44, rotating disk 43 integral demounting can be got off, the test point 44 on later stage integral replacing rotating disk 43, keeps the axis between test point 44 consistent with direction of motion, to reduce measuring error.
Described overload protection arrangement comprises shell 31 and top cover 32, be fixedly connected with by connecting rod 28 between sensor 26 with top cover 32, top cover 32 central authorities are provided with proximity switch 35, and the upper end of proximity switch 35 is connected with sensor 26, and the lower end of proximity switch 35 is arranged on the inside of shell 31; The inside of shell is provided with the 3rd push rod 33 and transverse tube the 34, three push rod 33 is arranged on immediately below proximity switch 35, is provided with gap between the 3rd push rod 33 and proximity switch 35; The top that the bottom center of shell 31 is provided with for through hole 312, second push rod 29 of the second push rod 29 turnover is fixedly connected with the bottom of transverse tube 34, and the top of transverse tube 34 is fixedly connected with the bottom of the 3rd push rod 33; Gap is provided with between the both sides of transverse tube 34 and the inwall of shell 31, transverse tube 34 inside is provided with the first spring 37 and two balls 36, connected by the first spring 37 between two balls 36, the inwall of shell 31 is provided with the arc groove 311 matched with ball 36, the second spring 38 is provided with between top cover 32 and transverse tube 34, one end of second spring 38 is connected with the bottom surface of top cover 32, and the other end of the second spring 38 is connected with transverse tube 34.For ensureing that ball 36 and transverse tube 34 closely cooperate, do not occur skidding, the diameter of described ball 36 equals the internal diameter of transverse tube 34.
Two balls 36 push in the groove 311 of shell 31 inwall by overload protection arrangement in normal operating conditions the first spring 37; shell 31 is linked together with elevating mechanism 25 by connecting rod 28, sensor 26, first push rod 27, pedestal 22 again; when elevating mechanism 25 moves up and down, shell 31 just drives the second push rod 29 to move by ball 36.When the resistance that test point 44 is subject to when testing is no more than safety value, the direction of motion of shell 31, second push rod 29 and sensor 26 is consistent with shift value.When the resistance that test point 44 is subject to exceedes safety value; resistance by being delivered to overload protection arrangement by the axis of the second push rod 29 under the transmission of support box 41; the elastic force effect forcing ball 36 to overcome the first spring 37 is extruded in the groove 311 shell 31 inwall, and then the second push rod 29 moves and departs from shell 31 and be connected.Once after the two departs from connection, second push rod 29 rises and causes the 3rd push rod 33 also to rise, 3rd push rod 33 rising can trigger proximity switch 35, control module is provided with in sensor 26, proximity switch 35 sends overload signal to the control module in sensor 26, through the analysis of control module, interrupt whole mensuration process, wait for that the faulty component of operating personnel to instrument processes.After overload protection arrangement resets, analyzer can continue to measure.The acting as of the second spring 38 in overload protection arrangement: when normally working, the second spring 38 is stretched, the self gravitation of probe and the second push rod 29 and the second spring 38 pulling force produced that is stretched is in equilibrium state; But probe breaks down, when the resistance of test point 44 exceedes safety value, under the effect of the second spring 38, now shell 31 departs from the second push rod 29 and is connected, second push rod 29 moves up, and because the self gravitation removing probe and the second push rod 29 affects, this is active in one's movements, fast.Owing to being in the middle of overload, strength when the second push rod 29 and the 3rd push rod 33 move is comparatively large, and the second spring 38 also has buffer action, and protection proximity switch 35 from the hard hit of the 3rd push rod 33, thus avoids proximity switch 35 to damage.
Described premixing mortar pick-up unit using method: first elevating mechanism 25 drives entirety at the uniform velocity to fall, the test point 44 be arranged on rotating disk 43 at the uniform velocity falls, insert in the premixing mortar in die trial 23, by detecting test point 44 resistance suffered during insertion, and whether insertion depth mensuration premixing mortar reaches normal consistency; In premixing mortar condensation process, adopt method same as described above, rotate rotating disk 43 by motor 42, the resistance at the beginning of selecting different test points 44 to detect, suffered by final set test point and insertion depth, thus determine that test specimen is at not coagulated state in the same time, and then measure setting time.After completing, test point 44 is mentioned, remove attachment premixing mortar in its surface.After each mensuration completes, test point 44 is mentioned, remove attachment premixing mortar in its surface.
In the above-described embodiments, described premixing mortar pick-up unit mainly utilizes above probe, to be provided with the resistance and displacement that the test point 44 in sensor 26 measuring sonde is subject to; During mensuration, because test point 44 is driven at the uniform velocity to fall by elevating mechanism 25, avoid test point 44 in decline process, friction force is on the impact measured, thus further reduction outside environmental elements measures on consumptive use of water normal consistence and setting time the impact caused, and improve measurement efficiency.Because this device adopts the method for direct-detection premixing mortar resistance, eliminate the structure of folding and unfolding test point in existing instrument, thus improve the reliability of instrument entirety.Utilize, on probe, multiple test point 44 is installed simultaneously, realize automatic needle exchange by motor 42 and rotating disk 43 and not only reduce measuring error, but also reduce the labour intensity of operating personnel and measure cost.Avoid the whereabouts reason due to elevating mechanism 25 in mensuration process to cause resistance excessive by overload protection arrangement, cause probe or the sensor of precision 26 damages.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a premixing mortar pick-up unit, comprise the stand (21) being positioned at bottom, the pedestal (22) being positioned at top, test the die trial (23) and glass plate (24) that use, it is characterized in that: described premixing mortar pick-up unit is also provided with elevating mechanism (25), sensor (26), overload protection arrangement and probe, the bottom of elevating mechanism (25) is fixedly connected with stand (21), elevating mechanism (25) is provided with lifting slider (251), and lifting slider (251) is fixedly connected with pedestal (22); The first push rod (27) is provided with between pedestal (22) and sensor (26), be fixedly connected with by push rod (27) between pedestal (22) and sensor (26), the top of sensor (26) is provided with back taper connecting rod (28), the bottom of connecting rod (28) is connected with overload protection arrangement, and the bottom of overload protection arrangement is provided with the second push rod (29); Described probe comprises support box (41), the bottom of the second push rod (29) is fixedly connected with the top of support box (41), the side of support box (41) is provided with motor (42), the opposite side of support box (41) is provided with dismountable rotating disk (43), rotating disk (43) is provided with multiple test point (44), test point is symmetric between (44).
2. a kind of premixing mortar pick-up unit according to claim 1, it is characterized in that: described overload protection arrangement comprises shell (31) and top cover (32), be fixedly connected with by connecting rod (28) between sensor (26) with top cover (32), top cover (32) central authorities are provided with proximity switch (35), the upper end of proximity switch (35) is connected with sensor (26), and the lower end of proximity switch (35) is arranged on the inside of shell (31), the inside of shell is provided with the 3rd push rod (33) and transverse tube (34), 3rd push rod (33) is arranged on immediately below proximity switch (35), is provided with gap between the 3rd push rod (33) and proximity switch (35), the bottom center of shell (31) is provided with the through hole (312) passed in and out for the second push rod (29), the top of the second push rod (29) is fixedly connected with the bottom of transverse tube (34), and the top of transverse tube (34) is fixedly connected with the bottom of the 3rd push rod (33), gap is provided with between the both sides of transverse tube (34) and the inwall of shell (31), transverse tube (34) inside is provided with the first spring (37) and two balls (36), connected by the first spring (37) between two balls (36), the inwall of shell (31) is provided with the arc groove (311) matched with ball (36), the second spring (38) is provided with between top cover (32) and transverse tube (34), one end of second spring (38) is connected with the bottom surface of top cover (32), the other end of the second spring (38) is connected with transverse tube (34).
3. a kind of premixing mortar pick-up unit according to claim 2, is characterized in that: the diameter of described ball (36) equals the internal diameter of transverse tube (34).
4. a kind of premixing mortar pick-up unit according to claim 1, is characterized in that: described test point (44) is normal consistency bar, one or several in initial set test point or final set test point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520626810.8U CN204903534U (en) | 2015-08-19 | 2015-08-19 | Detection device for ready mixed mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520626810.8U CN204903534U (en) | 2015-08-19 | 2015-08-19 | Detection device for ready mixed mortar |
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| Publication Number | Publication Date |
|---|---|
| CN204903534U true CN204903534U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520626810.8U Expired - Fee Related CN204903534U (en) | 2015-08-19 | 2015-08-19 | Detection device for ready mixed mortar |
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| CN (1) | CN204903534U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840970A (en) * | 2016-12-26 | 2017-06-13 | 徐州工程学院 | One kind digitizes inversion pulse concrete rheological analyzer and its method of work based on DSP |
| CN106989799A (en) * | 2017-04-25 | 2017-07-28 | 贵州理工学院 | Sand storehouse material position counter weight type monitoring warning device |
-
2015
- 2015-08-19 CN CN201520626810.8U patent/CN204903534U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840970A (en) * | 2016-12-26 | 2017-06-13 | 徐州工程学院 | One kind digitizes inversion pulse concrete rheological analyzer and its method of work based on DSP |
| CN106840970B (en) * | 2016-12-26 | 2019-07-12 | 徐州工程学院 | One kind digitizing inversion pulse concrete rheological analyzer based on DSP |
| CN106989799A (en) * | 2017-04-25 | 2017-07-28 | 贵州理工学院 | Sand storehouse material position counter weight type monitoring warning device |
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| Date | Code | Title | Description |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20180819 |