CN102661874B - Detecting sampling tool and detecting method for distribution uniformity of aggregates of concrete pouring layer - Google Patents
Detecting sampling tool and detecting method for distribution uniformity of aggregates of concrete pouring layer Download PDFInfo
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- CN102661874B CN102661874B CN201210153482.5A CN201210153482A CN102661874B CN 102661874 B CN102661874 B CN 102661874B CN 201210153482 A CN201210153482 A CN 201210153482A CN 102661874 B CN102661874 B CN 102661874B
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- 238000005070 sampling Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title abstract description 11
- 238000001514 detection method Methods 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 230000000994 depressogenic effect Effects 0.000 claims description 8
- 230000001737 promoting effect Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000003908 quality control method Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000002946 Total quality control Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
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- 239000011440 grout Substances 0.000 description 1
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Abstract
The invention relates to a detecting sampling tool and detecting method for distribution uniformity of aggregates of a concrete pouring layer and belongs to the technical field of concrete. The detecting sampling tool is characterized by comprising a supporting device, a transmission device, a lifting device and a sampling device, wherein the transmission device comprises a hollow screw rod (5), a disc-shaped hand wheel (6) and a guiding rod (12); the disc-shaped hand wheel (6) is sleeved outside the hollow screw rod (5); the guiding rod (12) is sleeved inside the hollow screw rod (5); the hollow screw rod (5) is vertically supported by the supporting device mounted at the upper end; the lifting device and the disc-shaped hand wheel (6) are mounted at the lower end of the hollow screw rod (5); and the lower end of the guiding rod (12) extends out of the hollow screw rod (5) and the lifting device and is connected with the sampling device. By adopting the detecting sampling tool and detecting method for the distribution uniformity of the aggregates of the concrete pouring layer, the field blank is filled up, the overall quality control is realized and a great contribution to the progress of the high-density concrete construction technology is made.
Description
Technical field
Detection sampling instrument and the detection method of concrete lift aggregate distributing homogeneity, belong to concrete technology field, is specifically related to a kind of instrument and detection method that detects concrete lift aggregate distributing homogeneity.
Background technology
The density difference of coarse aggregate, fine aggregate and the grout of normal concrete is little, and in certain slump scope, aggregate sinks and be not obvious, can not pay close attention to.High density concrete, the iron block of doping, the density of lead far exceed the density of mixture, and aggregate sinking trend is remarkable.The high density concrete of same thickness is linear to the approximate density with it of the ability of ray attenuation, the component of some aggregate is to the selective damping capacity of certain ray, thereby the homogeneity that aggregate distributes is an important technical parameter that guarantees radiation protection ability.
High density concrete detects necessary to the uniform rate of aggregate, but, lack at present the method for instant detection, conventionally use sample, sample is split and observed, determine the method for construction technology, required time is long, experimental cost is high, lack the detection method of work progress, control pouring quality in good time and have bottleneck.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, provide a kind of and detect for concreting process aggregate evening ratio, fill up field blank, the detection method that realizes the sampling instrument of total quality control and utilize this instrument to carry out.
The technical solution adopted for the present invention to solve the technical problems is: the detection sampling instrument of this concrete lift aggregate distributing homogeneity, it is characterized in that: comprise bracing or strutting arrangement, gearing, lifting gear and sampler, described gearing comprise hollow lead screw, be outward enclosed within dish-type handwheel on hollow lead screw and in be enclosed within the guide pole in hollow lead screw, the bracing or strutting arrangement that hollow lead screw is installed by upper end vertically supports, lifting gear and dish-type handwheel are installed in hollow lead screw lower end, hollow lead screw and lifting gear are stretched out in guide pole lower end, and connect sampler.Bracing or strutting arrangement can support whole device, rotates dish-type handwheel and can make hollow lead screw drive lifting gear to rise or decline, and sampler is for matched moulds and sampling.
The each cover in the described upper and lower two ends of hollow lead screw endoporus has 1 identical axle sleeve, and hollow guide pole is enclosed within axle sleeve, and guide pole can do relative sliding along axle sleeve.
Described lifting gear comprises two-direction thrust bearing, two-direction thrust bearing is socketed in end, hollow lead screw lower end, the nut of tightening by bottom is fixed, and the jacket casing of exerting pressure is all overlapped at the upper and lower two ends of two-direction thrust bearing, and the jacket casing outer ring sleeve of exerting pressure has the lifting sleeve that can slide up and down along hollow lead screw.While carrying on hollow lead screw, the power that will lift passes to lifting upper shield, when hollow lead screw presses down, promotes upper shield and is obstructed while keeping off, can upward sliding.
Described lifting sleeve is cylindric, and upper end is provided with end cap, has the hole adapting with hollow lead screw external diameter and be enclosed within on hollow lead screw on end cap, and lower ending opening is also provided with the flange of outward flanging, uniform three open slots on flange.
Open slot place on described lifting sleeve flange is connected with consistent with opening flange outside diameter and with the dish that lifts of identical open slot by 3 connected nails.
Described sampler comprises feeding tubular shaft and is fixed by socket the feeding dish in feeding tubular shaft bottom, feeding tubular shaft top is contained in guide pole bottom by solid short sleeve, on feeding tubular shaft tube wall, have sprue, on the feeding tubular shaft of feeding dish top, be set with downward opening feeding cylinder, in feeding cylinder, be provided with from the top down guiding material returned dish and the de-charging tray of slip cap on feeding tubular shaft, feeding cylinder can slide up and down and be encircled into a confined space with feeding dish.From sprue, can inject or manually smash into concrete mix by pressure, when promoting, inject or smash into concrete mix, to fill up the space after sample takes out, reducing subsiding of sampling place mixture.
On described feeding cylinder upper end end cap, the pressure-bearing jacket casing consistent with the jacket casing external diameter of exerting pressure is installed, lower ending opening inwall has the conical surface, matches with the tapering on feeding plate edge.Hollow lead screw moves down, and the jacket casing of exerting pressure is depressed on pressure-bearing jacket casing, and feeding cylinder declines, until feeding cylinder end opening and feeding dish are completely closed.
Guide pole bottom is stretched into and be sleeved in described solid minor axis one end, and the other end is fixedly connected with feeding tubular shaft top, and the solid minor axis face of cylinder has annular groove, lifts dish horizontal direction and insert in annular groove.When lifting lifts dish, can drive sampler to rise.
Described bracing or strutting arrangement comprises pole bracket, bedplate and the light face bearing and the thread support that are arranged side by side up and down, light face bearing and thread support are fixed on pole bracket by bedplate, and by inner hole sleeve on hollow lead screw external cylindrical surface, on thread support endoporus, be shaped with the screw thread being meshed with hollow lead screw and form and be threaded with hollow lead screw, hollow lead screw can rise or decline along light face bearing and thread support.
The detection method of the detection sampling instrument of described concrete lift aggregate distributing homogeneity, is characterized in that, comprises the steps:
1), above sampling spot, pole bracket is set, check, level each portion, the part of sampling instrument, carrying out relevant preparation;
2), mounting seat plate on pole bracket, bedplate has been installed the light face bearing and the thread support that are arranged side by side up and down, on light face bearing and thread support, vertically screw in the hollow lead screw with dish-type handwheel, two-direction thrust bearing and the jacket casing of exerting pressure are installed in hollow lead screw lower end, the jacket casing outer ring suit lift lug cylinder of exerting pressure;
3), guide pole is packed in the axle sleeve of hollow lead screw endoporus;
4), before the LIFT of preparing sampling is not built, the feeding tubular shaft that lower end is welded to feeding dish is placed into place to be sampled, cover is loaded onto de-charging tray, the be associated position of parts of adjustment, guide pole lower end is enclosed within on the solid minor axis of feeding tubular shaft upper end, now feeding tubular shaft should be vertical with LIFT;
5), rotate dish-type handwheel, hollow lead screw is depressed into appropriate location, to limit the contingent swing of feeding tubular shaft, check errorless after, on feeding tubular shaft and de-charging tray, brush or paste release layer;
6), according to treating that textual criticism, the process conditions that check complete LIFT;
7), above step completes, implement matched moulds: rotate dish-type handwheel, to on hollow lead screw, move, its lower end moves to the above enough distances of feeding tubular shaft and guide pole junction, and moving on guide pole, at guiding material returned dish, press close to concrete one side, release layer is brushed or pasted to feeding tube inner surface, guiding material returned dish is set on feeding tubular shaft, again by feeding jacket casing to feeding tubular shaft, check errorless after, rotate dish-type handwheel, hollow lead screw is moved down slowly, the jacket casing of exerting pressure is depressed on pressure-bearing jacket casing, be rotated further dish-type handwheel, hollow lead screw is moved down successively, until feeding cylinder end opening and feeding dish are completely closed, the moment of dish-type hand wheel rotating is very big, cannot continue rotation,
8), complete after matched moulds, take out immediately sample: rotate dish-type handwheel, to on hollow lead screw, move, make to promote the flanged lower surface of sleeve and move to the top position of the annular groove of solid minor axis, to lift dish and insert annular groove, rotary pulling dish, three open slots are alignd with three open slots that promote on sleeve flange, in open slot, laying connected nail connects, complete hollow lead screw and mutual being connected of feeding tubular shaft, check errorless after, rotate dish-type handwheel, to on hollow lead screw, move, slowly mention feeding tubular shaft and the sampler associated with it, when promoting, from sprue pressure, inject or manually smash into concrete mix, to fill up the space after sample takes out, reduce subsiding of sampling place mixture,
9), the feeding tubular shaft sampler associated with it rises to and departs from the above certain altitude of LIFT, hinged cantilever support is to placement location, rotate dish-type handwheel, hollow lead screw is descending, put the feeding tubular shaft sampler associated with it well, pull down three connected nails, extract out and lift dish, releasing is connected with hollow lead screw, is transferred to measured place;
10), maintenance to concrete final set, possess initial strength, the demoulding: the feeding tubular shaft sampler associated with it is placed on demoulding support, the push rod of demoulding support supports the flange of feeding cylinder, on feeding tubular shaft, guiding material returned dish, exerts pressure, and deviates from feeding cylinder;
11), on obtained sample subregion label, by subregion peel sample, record aggregate distributed data, calculate its uniform rate, and level each parts.
Compared with prior art, the beneficial effect that the present invention has is:
1, a kind of detection sampling instrument and detection method of concrete lift aggregate distributing homogeneity are provided, fill up field blank: solved lacking of casting process aggregate evening ratio detection method, filled up the blank of building sampling method in operation, sampling instrument, in nuclear engineering construction, the progress of high density concrete operating technique is made to larger contribution;
2, owing to detecting in time, realized total quality control, for the assurance of aggregate homogeneity one class quality index, created basic condition, the positive role having played for the control of product quality;
3, the location of inlaying axle sleeve and effectively having solved feeding tubular shaft of hollow lead screw, the combination between feeding tubular shaft, solid minor axis, guide pole is reasonable, splits easily, easy to use;
4, lift the annular groove of the solid minor axis of dish insertion, and connect lifting sleeve by lay connected nail in open slot, complete hollow lead screw and mutual being connected of feeding tubular shaft, rotate dish-type handwheel and can mention feeding tubular shaft and the sampler associated with it, efficiently solve the rotation of hollow lead screw and sample tubular shaft in the axial lifting not allowing under rotating condition;
5, on feeding tubular shaft tube wall, have sprue, by the inner tube of sprue and sampling tubular shaft, under feeding dish, inject mixture, prevent the local collapse of sampling area.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is demoulding schematic diagram of the present invention.
Wherein: 1, pole bracket 2, bedplate 3, light face bearing 4, thread support 5, hollow lead screw 6, dish-type handwheel 7, two-direction thrust bearing 8, nut 9, the jacket casing 10 of exerting pressure, promote sleeve 11, axle sleeve 12, guide pole 13, feeding tubular shaft 14, feeding dish 15, de-charging tray 16, solid minor axis 17, guiding material returned dish 18, feeding cylinder 19, pressure-bearing jacket casing 20, lift dish 21, connected nail 22, sprue 23, demoulding support 24, material returned bar.
Fig. 1 ~ 2nd, the most preferred embodiment of the detection sampling instrument of concrete lift aggregate distributing homogeneity of the present invention, below in conjunction with accompanying drawing 1 ~ 2, the present invention will be further described.
Embodiment
With reference to accompanying drawing 1: the detection sampling instrument of this concrete lift aggregate distributing homogeneity, comprise bracing or strutting arrangement, gearing, lifting gear and sampler, gearing comprises hollow lead screw 5, be enclosed within outward dish-type handwheel on hollow lead screw 56 and in be enclosed within the guide pole 12 in hollow lead screw 5, the bracing or strutting arrangement that hollow lead screw 5 is installed by upper end vertically supports, lifting gear is installed in hollow lead screw 5 lower ends, dish-type handwheel 6 is arranged between bracing or strutting arrangement and lifting gear, the each cover in the hollow lead screw 5 upper and lower two ends of endoporus has 1 identical axle sleeve 11, hollow guide pole 12 is enclosed within axle sleeve 11, guide pole 12 can do relative sliding along axle sleeve 11, hollow lead screw 5 and lifting gear are stretched out in guide pole 12 lower ends, and connect sampler.Bracing or strutting arrangement can support whole device, rotates dish-type handwheel 6 and can make hollow lead screw 5 drive lifting gear to rise or decline, and sampler is for matched moulds and sampling.
Lifting gear comprises two-direction thrust bearing 7, two-direction thrust bearing 7 is socketed in hollow lead screw 5 ends, lower end, the nut 8 of tightening by bottom is fixing, and two-direction thrust bearing all overlaps the jacket casing 9 of exerting pressure in two ends Shang Xia 7, and jacket casing 9 outer ring sleeves of exerting pressure have the lifting sleeve 10 that can slide up and down along hollow lead screw 5.It is cylindric promoting sleeve 10, upper end is provided with end cap, on end cap, have the hole adapting with hollow lead screw 5 external diameters and be enclosed within on hollow lead screw 5, lower ending opening is also provided with the flange of outward flanging, uniform three open slots on flange, and be connected with consistent with the opening flange outside diameter dish 20 that lifts by 3 connected nails 21.While carrying on hollow lead screw 5, the power that will lift passes to and promotes upper shield 10, when hollow lead screw 5 presses down, and when lifting upper shield 10 is stopped, can upward sliding.
Sampler comprises feeding tubular shaft 13 and is fixed by socket the feeding dish 14 in feeding tubular shaft 13 bottoms, feeding tubular shaft 13 tops are fixed on guide pole 12 bottoms by solid minor axis 16, on feeding tubular shaft 13 tube walls, have sprue 22, on the feeding tubular shaft 13 of feeding dish 14 tops, be set with downward opening feeding cylinder 18, in feeding cylinder 18, be provided with from the top down guiding material returned dish 17 and the de-charging tray 15 of slip cap on feeding tubular shaft 13, feeding cylinder 18 can slide up and down and be encircled into a confined space with feeding dish 14.On feeding cylinder 18 upper end end caps, be provided with and the consistent pressure-bearing jacket casing 19 of jacket casing 9 external diameters of exerting pressure, lower ending opening inwall has the conical surface, matches with the tapering on feeding dish 14 edges.Hollow lead screw 5 moves down, and the jacket casing 9 of exerting pressure is depressed on pressure-bearing jacket casing 19, and feeding cylinder 18 declines, until feeding cylinder 18 end openings and feeding dish 14 are completely closed.From sprue 22, can inject or manually smash into concrete mix by pressure, when promoting, inject or smash into concrete mix, to fill up the space after sample takes out, reducing subsiding of sampling place mixture.
Light face bearing 3 and thread support 4 that bracing or strutting arrangement comprises pole bracket 1, bedplate 2 and is arranged side by side up and down, light face bearing 3 and thread support 4 are fixed on pole bracket 1 by bedplate 2, and by inner hole sleeve on hollow lead screw 5 external cylindrical surfaces, on thread support 4 endoporus, be shaped with the screw thread that is meshed with hollow lead screw 5 and form and be threaded with hollow lead screw 5.Hollow lead screw 5 can rise or decline along light face bearing 3 and thread support 4.
Specific implementation process is as follows:
1), above sampling spot, the pole bracket 1 of flexible or swing position is set, check, level each portion, the part of sampling instrument, carrying out relevant preparation;
2), mounting seat plate 2 and the light face bearing 3 and the thread support 4 that are arranged side by side up and down on pole bracket 1, hollow lead screw 5 is vertically installed on light face bearing 3 and thread support 4, at hollow lead screw 5, dish-type handwheel 6 is installed, two-direction thrust bearing 7 and the jacket casing 9 of exerting pressure are installed in hollow lead screw 5 lower ends, the jacket casing 9 outer ring suit lift lug cylinders 10 of exerting pressure;
3), guide pole 12 is packed in the axle sleeve 11 of hollow lead screw 5 endoporus;
4), before the LIFT of preparing sampling is not built, the feeding tubular shaft 13 that lower end has been welded to feeding dish 14 is placed into place to be sampled, cover is loaded onto de-charging tray 15, the be associated position of parts of adjustment, guide pole 12 lower ends are enclosed within on the solid minor axis 16 of feeding tubular shaft 13 upper ends, now feeding tubular shaft 13 should be vertical with LIFT;
5), rotate dish-type handwheel 6, hollow lead screw 5 is depressed into appropriate location, to limit the 13 contingent swings of feeding tubular shaft, check errorless after, on feeding tubular shaft 13 and de-charging tray 15, brush or paste release layer;
6), according to waiting that the process conditions of investigating, detecting complete LIFT;
7), above step completes, implement matched moulds: rotate dish-type handwheel 6, to on hollow lead screw 5, move, its lower end moves to feeding tubular shaft 13 and the above enough distances in guide pole 12 junctions, and moving on guide pole 12, at guiding material returned dish 17, press close to concrete one side, release layer is brushed or pasted to feeding cylinder 18 inside surfaces, guiding material returned dish 17 is set on feeding tubular shaft 13, again feeding cylinder 18 is set on feeding tubular shaft 13, check errorless after, rotate dish-type handwheel 6, hollow lead screw 5 is moved down slowly, the jacket casing 9 of exerting pressure is depressed on pressure-bearing jacket casing 19, be rotated further dish-type handwheel 6, hollow lead screw 5 is moved down successively, until feeding cylinder 18 end openings and feeding dish 14 are completely closed, the moment that dish-type handwheel 6 rotates is very big, cannot continue rotation,
8), complete after matched moulds, sampling immediately: rotate dish-type handwheel 6, to on hollow lead screw 5, move, make to promote the flanged lower surface of sleeve 10 and move to the top position of the annular groove of solid minor axis 16, circle is lifted to dish 20 and insert annular groove, rotary pulling dish 20, three open slots are alignd with three open slots that promote on sleeve 10 flanges, in open slot, laying connected nail 21 connects, complete hollow lead screw 5 and mutual being connected of feeding tubular shaft 13, check errorless after, rotate dish-type handwheel 6, to on hollow lead screw 5, move, slowly mention feeding tubular shaft 13 and the sampler associated with it, when promoting, from sprue 22 pressure, inject concrete mix, to fill up the space after sample takes out, reduce subsiding of sampling place mixture,
9), feeding tubular shaft 13 sampler associated with it rises to and departs from the above certain altitude of LIFT, hinged cantilever support 1 is to placement location, rotate dish-type handwheel 6, by descending hollow lead screw 5, put feeding tubular shaft 13 sampler associated with it well, pull down three connected nails 21, extract out and lift dish 20, remove being connected of feeding tubular shaft 13 sampler associated with it and lifting gear, be transferred to measured place;
10), maintenance to concrete final set, possess initial strength, the demoulding: with reference to accompanying drawing 2, feeding tubular shaft 13 sampler associated with it is placed on demoulding support 23, the push rod of demoulding support 23 supports the flange of feeding cylinder 18, in hole by material returned bar 24 from feeding cylinder 18 end caps, stretch into feeding cylinder 18 and guiding material returned dish 17 is exerted pressure, feeding tubular shaft 13 is exerted pressure simultaneously, deviate from feeding cylinder 18;
11), on obtained sample subregion label, by subregion peel sample, record aggregate distributed data, calculate its uniform rate, and level each parts.
When sampling detects, concrete lift also can be built two-layer, and emphasis detects aggregate distribution situation between LIFT.
The above, be only preferred embodiment of the present invention, is not the restriction of the present invention being made to other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not depart from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (2)
1. the detection sampling instrument of concrete lift aggregate distributing homogeneity, it is characterized in that: comprise bracing or strutting arrangement, gearing, lifting gear and sampler, described gearing comprises hollow lead screw (5), be enclosed within outward dish-type handwheel (6) on hollow lead screw (5) and in be enclosed within the guide pole (12) in hollow lead screw (5), the bracing or strutting arrangement that hollow lead screw (5) is installed by upper end vertically supports, lifting gear and dish-type handwheel (6) are installed in hollow lead screw (5) lower end, hollow lead screw (5) and lifting gear are stretched out in guide pole (12) lower end, and connect sampler,
The each cover in the described upper and lower two ends of hollow lead screw (5) endoporus has 1 identical axle sleeve (11), and hollow guide pole (12) is enclosed within axle sleeve (11);
Described lifting gear comprises two-direction thrust bearing (7), two-direction thrust bearing (7) is socketed in hollow lead screw (5) end, lower end, by lower nuts (8), tighten fixing, the jacket casing of exerting pressure (9) is all overlapped at the upper and lower two ends of two-direction thrust bearing (7), and the jacket casing of exerting pressure (9) outer ring sleeve has the lifting sleeve (10) that can slide up and down along hollow lead screw (5);
Described lifting sleeve (10) is cylindric, and upper end is provided with end cap, has the hole adapting with hollow lead screw (5) external diameter and be enclosed within hollow lead screw (5) upper on end cap, and lower ending opening is also provided with the flange of outward flanging, uniform three open slots on flange;
Open slot place on described lifting sleeve (10) flange is connected with consistent with opening flange outside diameter and is lifted dish (20) with identical open slot by 3 connected nails (21); While carrying on hollow lead screw (5), the power that will lift passes to and promotes upper shield (10), when hollow lead screw (5) presses down, promotes upper shield (10) while being stopped, can upward sliding;
Described sampler comprises feeding tubular shaft (13) and is sleeved on the feeding dish (14) of feeding tubular shaft (13) bottom, feeding tubular shaft (13) top is fixed on guide pole (12) bottom by solid minor axis (16), on feeding tubular shaft (13) tube wall, have sprue (22), on the feeding tubular shaft (13) of feeding dish (14) top, be set with downward opening feeding cylinder (18), in feeding cylinder (18), be provided with from the top down guiding material returned dish (17) and the de-charging tray (15) of slip cap on feeding tubular shaft (13), feeding cylinder (18) can slide up and down and be encircled into a confined space with feeding dish (14),
On described feeding cylinder (18) upper end end cap, the pressure-bearing jacket casing (19) consistent with the jacket casing of exerting pressure (9) external diameter is installed, lower ending opening inwall has the conical surface, matches with the tapering on feeding dish (14) edge;
Guide pole (12) bottom is stretched into and be sleeved in described solid minor axis (16) one end, and the other end is fixedly connected with feeding tubular shaft (13) top, and solid minor axis (16) face of cylinder has annular groove, lifts dish (20) horizontal direction and insert in annular groove;
Described bracing or strutting arrangement comprises pole bracket (1), bedplate (2) and the light face bearing (3) being arranged side by side up and down and thread support (4), light face bearing (3) and thread support (4) are fixed on pole bracket (1) by bedplate (2), and by inner hole sleeve on hollow lead screw (5) external cylindrical surface, on thread support (4) endoporus, be shaped with the screw thread that is meshed with hollow lead screw (5) and form and be threaded with hollow lead screw (5).
2. a detection method of utilizing the detection sampling instrument of the concrete lift aggregate distributing homogeneity described in claim 1, is characterized in that, comprises the steps:
1), above sampling spot, pole bracket (1) is set, check, level each portion, the part of sampling instrument, carrying out relevant preparation;
2), at the upper mounting seat plate (2) of pole bracket (1), on bedplate (2), install down the light face bearing (3) and the thread support (4) that are arranged side by side, at light face bearing (3) and the upper hollow lead screw (5) that vertically screws in band dish-type handwheel (6) of thread support (4), two-direction thrust bearing (7) and the jacket casing of exerting pressure (9) are installed in hollow lead screw (5) lower end, the jacket casing of exerting pressure (9) outer ring suit lift lug cylinder (10);
3), guide pole (12) is packed in the axle sleeve (11) of hollow lead screw (5) endoporus;
4), before the LIFT of preparing sampling is not built, the feeding tubular shaft (13) that lower end is welded to feeding dish (14) is placed into place to be sampled, cover is loaded onto de-charging tray (15), the be associated position of parts of adjustment, the solid minor axis (16) that guide pole (12) lower end is enclosed within to feeding tubular shaft (13) upper end is upper, and now feeding tubular shaft (13) should be vertical with LIFT;
5), rotate dish-type handwheel (6), hollow lead screw (5) is depressed into appropriate location, to limit feeding tubular shaft (13) contingent swing, check errorless after, on feeding tubular shaft (13) and de-charging tray (15), brush or paste release layer;
6), complete LIFT;
7), implement matched moulds: rotate dish-type handwheel (6), to on hollow lead screw (5), move, its lower end moves to feeding tubular shaft (13) and the above enough distances in guide pole (12) junction, and moving on guide pole (12), at guiding material returned dish (17), press close to concrete one side, release layer is brushed or pasted to feeding cylinder (18) inside surface, the material returned dish (17) that will lead is set on feeding tubular shaft (13), again feeding cylinder (18) is set on feeding tubular shaft (13), check errorless after, rotate dish-type handwheel (6), hollow lead screw (5) is moved down slowly, the jacket casing (9) of exerting pressure is depressed on pressure-bearing jacket casing (19), be rotated further dish-type handwheel (6), hollow lead screw (5) is continued to move down, until feeding cylinder (18) end opening and feeding dish (14) are completely closed,
8), complete after matched moulds, take out immediately sample: rotate dish-type handwheel (6), to on hollow lead screw (5), move, make to promote the flanged lower surface of sleeve (10) and move to the top position of the annular groove of solid minor axis (16), to lift dish (20) and insert annular groove, rotary pulling dish (20), three open slots are alignd with three open slots that promote on sleeve (10) flange, in open slot, laying connected nail (21) connects, complete hollow lead screw (5) and mutual being connected of feeding tubular shaft (13), check errorless after, rotate dish-type handwheel (6), to on hollow lead screw (5), move, slowly mention feeding tubular shaft (13) and sampler, when promoting, from sprue (22) pressure, inject or manually smash into concrete mix, to fill up the space after sample takes out, reduce subsiding of sampling place mixture,
9), feeding tubular shaft (13) and sampler rise to and depart from the above certain altitude of LIFT, hinged cantilever support (1) is to placement location, rotate dish-type handwheel (6), by descending hollow lead screw (5), put feeding tubular shaft (13) and sampler well, pull down three connected nails (21), extract out and lift dish (20), releasing is connected with hollow lead screw (5), is transferred to measured place;
10), maintenance to concrete final set, possess initial strength, the demoulding: feeding tubular shaft (13) and sampler are placed on demoulding support (23), the push rod of demoulding support (23) supports the flange of feeding cylinder (18), on feeding tubular shaft (13), guiding material returned dish (17), exert pressure, deviate from feeding cylinder (18);
11), on obtained sample subregion label, by subregion peel sample, record aggregate distributed data, calculate its uniform rate, and level each parts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210153482.5A CN102661874B (en) | 2012-05-17 | 2012-05-17 | Detecting sampling tool and detecting method for distribution uniformity of aggregates of concrete pouring layer |
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| CN201210153482.5A CN102661874B (en) | 2012-05-17 | 2012-05-17 | Detecting sampling tool and detecting method for distribution uniformity of aggregates of concrete pouring layer |
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| CN104297456A (en) * | 2014-10-11 | 2015-01-21 | 陈振富 | Method for recognizing meso-structure parameter of dynamic performance of radiation shield concrete |
| CN108895945B (en) * | 2018-05-15 | 2020-06-19 | 首钢集团有限公司 | Device and method for measuring filling uniformity of refractory material of converter bottom joint |
| CN110031360A (en) * | 2019-03-05 | 2019-07-19 | 广东龙湖科技股份有限公司 | A kind of detection of inorganic flow material homogeneity and representation method |
| CN113605186A (en) * | 2021-07-29 | 2021-11-05 | 中冶南方城市建设工程技术有限公司 | Large-slump concrete pavement uniformity field testing device and method |
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| CN202648986U (en) * | 2012-05-17 | 2013-01-02 | 山东起凤建工股份有限公司 | Detecting and sampling device for concreting layer aggregate distribution uniformity |
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| DE4238399C1 (en) * | 1992-11-13 | 1994-03-24 | Bruker Franzen Analytik Gmbh | Mobile mass spectrometer with a sampling device with a rotating detection wheel with a metal rim |
| CN2364455Y (en) * | 1999-03-16 | 2000-02-16 | 黄斌 | Cylinder type sampler |
| JP3545718B2 (en) * | 2001-03-09 | 2004-07-21 | 西松建設株式会社 | Concrete quality test result table preparation device, concrete quality test result table preparation method, and recording medium |
| CN200952026Y (en) * | 2006-07-18 | 2007-09-26 | 郑州大学 | Driving device for quenching machine tool |
| CN101629874A (en) * | 2009-08-03 | 2010-01-20 | 湖南大学 | Concrete cut sampling machine |
| CN201575937U (en) * | 2009-11-19 | 2010-09-08 | 广西大学 | Two-dimensional concrete positioning and sampling device |
| CN202110078U (en) * | 2011-05-25 | 2012-01-11 | 北京中企卓创科技发展有限公司 | Vehicle-mounted connecting device for hand-pushed concrete coring machine |
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