CN204128921U - A kind of concrete viscosity stirs testing apparatus - Google Patents
A kind of concrete viscosity stirs testing apparatus Download PDFInfo
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- CN204128921U CN204128921U CN201420610452.7U CN201420610452U CN204128921U CN 204128921 U CN204128921 U CN 204128921U CN 201420610452 U CN201420610452 U CN 201420610452U CN 204128921 U CN204128921 U CN 204128921U
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Abstract
The utility model relates to a kind of concrete viscosity and stirs testing apparatus, its structure includes stirring host and stirrer, described stirrer is arranged on the chuck of stirring host, stirrer is one and rotates empty hammer, this rotation sky hammer includes hexagonal shaped steel and stainless steel hammer body, be hollow cylinder in the middle part of described stainless steel hammer body, hollow cone is at the two ends of hollow cylinder, the through hole holding hexagonal shaped steel and pass through is provided with at the tip portion of hollow cone, a part for described hexagonal shaped steel is coaxially through described stainless steel hammer body, and the hexagonal shaped steel front end stretching out in stainless steel hammer body is processed with oblique angle, the tapering at this oblique angle is identical with the tapering of hollow cone, the rear end of described hexagonal shaped steel is fixed in the chuck of stirring host.Testing apparatus of the present utility model utilizes the empty hammer of rotation to carry out alternative blade mixer, and add stability in use, measuring accuracy deviation is reduced, and Surveying Actual Precision improves greatly.
Description
Technical field
The utility model relates to testing apparatus, is related specifically to a kind of stirring for concrete viscosity and surveys instrument, specifically improve with the design of concrete contact portion in this testing tool.
Background technology
Concrete viscosity test index is most important to Concrete Industry, and the parameters such as concrete pumpability and slump size all have close relationship with concrete viscosity.Concrete viscosity comprises concrete plastic viscosity and shear yield stress, is concrete proportioning, the important evidence determined as parameters such as pumpabilities of the kind of additive and volume, concrete workability.
Measurement for concrete viscosity has a variety of instrument, we use the viscosity of a kind of Denmark import to stir tester, for testing concrete adhesive aggregation resistance, this testing tool includes stirring host and stirrer, wherein stepless change during stirring host selection rotating speed, from 0.001 revolutions per second to 0.6 revolutions per second, it is all gradual for starting and stopping, and maximum speed is 36 revolutions per seconds.The same with other existing equipments, this stirrer is original-pack blade mixer, and it realizes the measurement of concrete viscosity by drive blade rotary, and wherein the deadweight of blade mixer is 1227 grams.The blade agitators that concrete viscosity detects can only detect self-compacting concrete, and concrete stability is with evenly better, and coarse aggregate in concrete can be made to sink fast when stirring self-compacting concrete with blade agitators.And rotate hollow cone stirrer and not only can detect self-compacting concrete, also conventional concrete can be detected, and in the process of test concrete viscosity, the coarse aggregate in concrete is not easy, more more stable, reliable than the state of blade agitators ready-mixed concrete.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of novel concrete viscosity to stir testing apparatus.It is reliable that viscosity of the present utility model stirs spin stabilization when testing apparatus will accomplish to use, and rocks without obvious bias, and high from heavy and light, measuring accuracy.
In order to reach foregoing invention object, the technical scheme that the utility model provides is as follows:
A kind of concrete viscosity stirs testing apparatus, its structure includes stirring host and stirrer, described stirrer is arranged on the chuck of stirring host, it is characterized in that, described stirrer is one and rotates empty hammer, this rotation sky hammer includes hexagonal shaped steel and stainless steel hammer body, be hollow cylinder in the middle part of described stainless steel hammer body, hollow cone is at the two ends of hollow cylinder, the through hole holding hexagonal shaped steel and pass through is provided with at the tip portion of hollow cone, a part for described hexagonal shaped steel is coaxially through described stainless steel hammer body, and the hexagonal shaped steel front end stretching out in stainless steel hammer body is processed with oblique angle, the tapering at this oblique angle is identical with the tapering of hollow cone, the rear end of described hexagonal shaped steel is fixed in the chuck of stirring host.
Stir in testing apparatus at concrete viscosity of the present utility model, be positioned at and be welded with chain-wales in the middle of the hollow cone of hexagonal shaped steel rear end, the chain-wales through plane machining passes for hexagonal shaped steel and tightens stressed.
Stir in testing apparatus at concrete viscosity of the present utility model, the tail end that described hexagonal shaped steel penetrates part in stainless steel hammer body is processed with external thread, hollow cone is processed with internal thread, tightening to connect hexagonal shaped steel and hollow cone by taking tooth between above-mentioned internal thread, external thread, being provided with in coupling part and shutting weldering.
Stir in testing apparatus at concrete viscosity of the present utility model, the diameter that described hexagonal shaped steel penetrates part to stainless steel hammer body is 8mm, is processed with external thread at the tail end of diameter 8mm.
Stir in testing apparatus at concrete viscosity of the present utility model, the wall thickness of described stainless steel hammer body is less than 2 millimeters.
Stir in testing apparatus at concrete viscosity of the present utility model, describedly rotate the diameter of empty hammer or be Φ 125mm, be called 5 inch pipes.
Based on technique scheme, concrete viscosity of the present utility model stirs testing apparatus and compared with prior art has following technological merit:
1. concrete viscosity of the present utility model stirs in testing apparatus and utilizes the empty hammer of rotation to carry out alternative blade mixer, during use, hexagonal steel hammer vertically upward, hammer body under, the chuck that the head of hexagonal shaped steel is arranged on tester clamps, cylindrical hammer rotates to test concrete adhesive aggregation resistance in concrete, adds the stability in use of testing apparatus, rocks during rotation without obvious bias, measuring accuracy deviation is reduced, and Surveying Actual Precision improves greatly.
2. rotation sky hammer material selection stainless steel of the present utility model makes, and surface smoothness is high, decreases the rotational resistance of self, rotates the own wt of the stirrer that empty hammer is reduced by the wall thickness controlling self, also improves measuring accuracy.
Accompanying drawing explanation
Fig. 1 is the structural representation that concrete viscosity of the present utility model stirs testing apparatus.
Fig. 2 is that concrete viscosity of the present utility model stirs in testing apparatus the structural representation rotating empty hammer.
Embodiment
We do concrete viscosity stirring testing apparatus of the present utility model with specific embodiment by reference to the accompanying drawings and further elaborate below; understand its structure composition and working method in the hope of more cheer and bright, but protection domain of the present utility model can not be limited with this.
As depicted in figs. 1 and 2, the agent structure that the utility model concrete viscosity stirs testing apparatus includes stirring host A and stirrer B, and described stirrer B is arranged on the chuck of stirring host A.As creative place of the present utility model, above-mentioned stirrer B is configured to one and rotates empty hammer, this rotation sky hammer includes hexagonal shaped steel 1 and stainless steel hammer body 2, be hollow cylinder in the middle part of described stainless steel hammer body 2, hollow cone is at the two ends of hollow cylinder, the through hole holding hexagonal shaped steel 1 and pass through is provided with at the tip portion of hollow cone, a part for described hexagonal shaped steel 1 is coaxially through described stainless steel hammer body 2, and the hexagonal shaped steel front end stretching out in stainless steel hammer body is processed with oblique angle, the tapering at this oblique angle is identical with the tapering of hollow cone, the rear end of described hexagonal shaped steel 1 is fixed in the chuck of stirring host A.
Stir in testing apparatus at concrete viscosity of the present utility model, be positioned at and be welded with chain-wales in the middle of the hollow cone of hexagonal shaped steel rear end, the chain-wales through plane machining passes for hexagonal shaped steel and tightens stressed.When mounted, can apply glue at facet aperture place in advance, then by hexagonal shaped steel directly through hammer body condensation, fix without electric welding herein as far as possible.
Stir in testing apparatus at concrete viscosity of the present utility model, the tail end that described hexagonal shaped steel penetrates part in stainless steel hammer body is processed with external thread, hollow cone is processed with internal thread, tightening to connect hexagonal shaped steel and hollow cone by taking tooth between above-mentioned internal thread, external thread, being provided with in coupling part and shutting weldering.The diameter that described hexagonal shaped steel penetrates part to stainless steel hammer body is 8mm, is processed with external thread at the tail end of diameter 8mm.The wall thickness of described stainless steel hammer body is less than 2 millimeters.
Stir in testing apparatus at concrete viscosity of the present utility model, describedly rotate the diameter of empty hammer or be Φ 125mm.
When rotating empty hammer and making, the utility model proposes following technical requirement:
1. the hammer body verticality, the concentricity that rotate empty hammer are guaranteed, should rock during rotation without obvious bias; The appearance of hammer body is bright and clean as far as possible, controls to some extent from important, and wall thickness control, within 2 millimeters, can adopt stainless steel to make; The deadweight of the blade mixer of prior art is 1227 grams, the theoretical weight shown in the utility model design drawing about 1292 grams.
2. hexagonal shaped steel penetrates the diameter of part in hammer body is 8mm, and the end 20mm that lengthens stretches out outside hammer body, for long dish clamping (also can bore centre hole) of lathe; The tail end machining screw of diameter 8mm, cone machining internal thread, after phase lap tooth is tightened, electricity consumption sealing is dead, and the hexagonal shaped steel this stretched out again during processing oblique angle is removed; In the middle of upper cone, weldering one chain-wales, after plane machining, tightens stressed for hexagonal shaped steel on facet, in advance after facet aperture place applies glue, then can be tightened through hammer body by hexagonal shaped steel, fixes herein as far as possible without electric welding; Can to reprocess after the direct electric welding in two ends by hexagonal shaped steel directly through hammer body time sure (electric welding easily make the concentricity of hexagonal shaped steel and hammer body produce offset).
3. two ends circular cone inclined-plane and cone postwelding add man-hour, and the accurate rear car of taper measurement is bright and clean, in case conical surface thickness is inconsistent.
4. total length can slightly change; When the tapering of hammer body diameter and two ends cone-plate is shaping, size can slightly change.
5., in the use procedure of this rotation sky hammer, should avoid as possible clashing into and falling falling, prevent hexagonal shaped steel bending.
Certainly; the case study on implementation that more than just testing apparatus of the present utility model is concrete; except above-mentioned anatomical connectivity; also have other similar structures replace and parameter designing, any other conversion that it will be apparent to those skilled in the art that and substitute be all belong to protection domain of the present utility model.
Claims (6)
1. a concrete viscosity stirs testing apparatus, its structure includes stirring host and stirrer, described stirrer is arranged on the chuck of stirring host, it is characterized in that, described stirrer is one and rotates empty hammer, this rotation sky hammer includes hexagonal shaped steel and stainless steel hammer body, be hollow cylinder in the middle part of described stainless steel hammer body, hollow cone is at the two ends of hollow cylinder, the through hole holding hexagonal shaped steel and pass through is provided with at the tip portion of hollow cone, a part for described hexagonal shaped steel is coaxially through described stainless steel hammer body, and the hexagonal shaped steel front end stretching out in stainless steel hammer body is processed with oblique angle, the tapering at this oblique angle is identical with the tapering of hollow cone, the rear end of described hexagonal shaped steel is fixed in the chuck of stirring host.
2. a kind of concrete viscosity according to claim 1 stirs testing apparatus, it is characterized in that, is positioned at and is welded with chain-wales in the middle of the hollow cone of hexagonal shaped steel rear end, and the chain-wales through plane machining passes for hexagonal shaped steel and tightens stressed.
3. a kind of concrete viscosity according to claim 1 stirs testing apparatus, it is characterized in that, the tail end that described hexagonal shaped steel penetrates part in stainless steel hammer body is processed with external thread, hollow cone is processed with internal thread, internal and external screw thread is taken tooth and is tightened to connect hexagonal shaped steel and hollow cone, is provided with shuts weldering in coupling part.
4. a kind of concrete viscosity according to claim 3 stirs testing apparatus, it is characterized in that, the diameter that described hexagonal shaped steel penetrates part to stainless steel hammer body is 8mm, is processed with external thread at the tail end of diameter 8mm.
5. a kind of concrete viscosity according to claim 1 stirs testing apparatus, and it is characterized in that, the wall thickness of described stainless steel hammer body is less than 2 millimeters.
6. a kind of concrete viscosity according to claim 1 stirs testing apparatus, it is characterized in that, the described diameter rotating empty hammer is Φ 125mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420610452.7U CN204128921U (en) | 2014-10-21 | 2014-10-21 | A kind of concrete viscosity stirs testing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420610452.7U CN204128921U (en) | 2014-10-21 | 2014-10-21 | A kind of concrete viscosity stirs testing apparatus |
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| CN204128921U true CN204128921U (en) | 2015-01-28 |
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| CN201420610452.7U Active CN204128921U (en) | 2014-10-21 | 2014-10-21 | A kind of concrete viscosity stirs testing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112454656A (en) * | 2020-10-27 | 2021-03-09 | 北京交通大学 | Concrete plastic viscosity real-time monitoring equipment and method |
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2014
- 2014-10-21 CN CN201420610452.7U patent/CN204128921U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112454656A (en) * | 2020-10-27 | 2021-03-09 | 北京交通大学 | Concrete plastic viscosity real-time monitoring equipment and method |
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Address after: 200120 Southwest District, 2123 Pudong Road, Pudong New Area, Shanghai. Co-patentee after: SHANGHAI PULIAN PREMIXED CONCRETE Co.,Ltd. Patentee after: Shanghai Construction Engineering Building Materials Technology Group Co., Ltd Address before: 200086 Siping Road 848, Shanghai, Hongkou District Co-patentee before: SHANGHAI PULIAN PREMIXED CONCRETE Co.,Ltd. Patentee before: SHANGHAI JIANGONG CONSTRUCTION MATERIAL Co.,Ltd. |