CN206270195U - A kind of eccentric shaft type concrete for hydraulic structure water sand punching mill test instrument - Google Patents
A kind of eccentric shaft type concrete for hydraulic structure water sand punching mill test instrument Download PDFInfo
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- CN206270195U CN206270195U CN201621369480.XU CN201621369480U CN206270195U CN 206270195 U CN206270195 U CN 206270195U CN 201621369480 U CN201621369480 U CN 201621369480U CN 206270195 U CN206270195 U CN 206270195U
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- frequency motor
- test specimen
- fixed
- agitating shaft
- agitated kettle
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Abstract
The utility model provides a kind of eccentric shaft type concrete for hydraulic structure water sand punching mill test instrument, including the first adjustable variable-frequency motor, agitating shaft, paddle, agitated kettle, stirring pan base, rotary shaft, the second adjustable variable-frequency motor, firm banking, connecting rod and test specimen geometrical clamp, agitating shaft is installed in agitated kettle, first adjustable variable-frequency motor is fixed on the upper end of agitating shaft, and paddle is fixed on the bottom of agitating shaft；Second adjustable variable-frequency motor is installed in firm banking, and the top of the second adjustable variable-frequency motor is fixed in the bottom of rotary shaft, and the upper end of rotary shaft is connected to stirring pot bottom by stirring pan base；One end of connecting rod is fixed on the side of firm banking, and the other end of connecting rod is connected with test specimen geometrical clamp, and test specimen geometrical clamp is used to clamp mixed mud test specimen, and mixed mud test specimen is fixed in agitated kettle；The center line of agitating shaft is differed with the center line of rotary shaft.The utility model can truly simulate high speed water sand punching mill, process is simple, easy to operate.
Description
Technical field
The utility model is related to a kind of eccentric shaft type concrete for hydraulic structure water sand punching mill test instrument, belongs to construction material tester
Device.
Background technology
China is the country in many sand rivers, and high-velocity flow containing sand is always water conservancy project to washing away and rushing mill for hydraulic structure
Build and operation in pay close attention to for a long time, need the problem properly settled.Both at home and abroad for improve hydraulic structure resistant abrasion ability and
The research that carries out and application widely, since 20th century the mid-80s, all kinds of abrasion resistance concretes in China gradually
It is applied, although resistant abrasion experimental study has been carried out for many years, test method and evaluation criteria are not yet unified so far.It is existing
Row professional standard《Concrete for hydraulic structure testing regulations》Although defining " ring method agent on crack resistance of concrete sand current scour in DL/T 5150
Three kinds of test methods such as experiment ", " steel ball method concrete anti-abrasion experiment under water ", " experiment of wind sand marksmanship concrete anti-abrasion ",
But wherein " under water steel ball method concrete anti-abrasion experiment ", " experiment of wind sand marksmanship concrete anti-abrasion " both all pass through
Steel ball punching mill or dry sand blow and spray indirectly testing concrete anti-abrasion, it is impossible to display concrete anti-abrasion performance directly perceived, and " circle
Around-France agent on crack resistance of concrete sand current scour experiment " uses instrument performance not good, in its impeller rotary work, due to using concentric
Axle is stirred, and abrasion agent is easily concentrated and is deposited in axis bottom, it is impossible to most abrasion agent punching mill test specimens are driven, while the instrument impeller turns
Speed is fixed, it is impossible to simulate true water velocity.Therefore, design one kind can more truly simulate current containing sand at a high speed to water conservancy project coagulation
The test apparatus of native anti-impact mould influence, becomes research object of the invention.
The content of the invention
The technical problems to be solved in the utility model, is to provide a kind of eccentric shaft type concrete for hydraulic structure water sand punching mill experiment
Instrument, can truly simulate high speed water sand punching mill, process is simple, easy to operate.
What the utility model was realized in：
A kind of eccentric shaft type concrete for hydraulic structure water sand punching mill test instrument, including one first adjustable variable-frequency motor, an agitating shaft,
An at least paddle, an agitated kettle, a stirring pan base, a rotary shaft, one second adjustable variable-frequency motor, a firm banking, one
Connecting rod and at least a test specimen geometrical clamp, the agitating shaft are installed in the agitated kettle, and the first adjustable variable-frequency motor is consolidated
Due to the upper end of the agitating shaft, the paddle is fixed on the bottom of the agitating shaft；The second adjustable variable-frequency electric
Machine is installed in the firm banking, and the top of the described second adjustable variable-frequency motor, institute are fixed in the bottom of the rotary shaft
The upper end for stating rotary shaft is connected to the stirring pot bottom by the stirring pan base；One end of the connecting rod is fixed on
On the side of the firm banking, the other end of the connecting rod is connected with the test specimen geometrical clamp, and the test specimen geometrical clamp is used
In clamping mixed mud test specimen, the mixed mud test specimen is fixed in the agitated kettle；The center line of the agitating shaft with it is described
The center line of rotary shaft is differed.
Further, the bottom of the agitated kettle is provided with a discharge gate.
Further, the bottom of the firm banking is provided with least two wheels.
Further, the direction of rotation of the paddle is opposite with the direction of rotation of the agitated kettle.
The utility model has the advantage of：The utility model can be used to simulate true high speed water sand punching mill to concrete performance
The test of influence, stirs using paddle is eccentric, while agitated kettle is rotated backward, can when can avoid due to being stirred using concentric shafts
The abrasion agent concentration that can occur is deposited in the shortcoming of shaft bottom, makes abrasion agent being dispersed in water evenly, while can also
Adjustment flow velocity, more real simulating actual conditions have the advantages that directly perceived true, process is simple, simple to operate.
Brief description of the drawings
The utility model is further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is a kind of front view of eccentric shaft type concrete for hydraulic structure water sand punching mill test instrument of the utility model.
Fig. 2 is a kind of top view of eccentric shaft type concrete for hydraulic structure water sand punching mill test instrument of the utility model.
Label declaration in figure：
The adjustable variable-frequency motors of 1- first, 2- agitating shafts, 3- paddles, 4- agitated kettles, 5- discharge gates, 6- stirring pan base,
7- rotary shafts, the adjustable variable-frequency motors of 8- second, 9- firm bankings, 10- wheels, 11- connecting rods, 12- test specimens geometrical clamp, 13- are mixed
Soil test specimen.
Specific embodiment
The utility model is made with reference to specific embodiment further being described in detail, but structure of the present utility model
It is not limited in following examples.
Refer to shown in Fig. 1 and Fig. 2, a kind of eccentric shaft type concrete for hydraulic structure water sand punching mill test instrument of the present utility model,
Including one first adjustable variable-frequency motor 1, an agitating shaft 2, at least a paddle 3, an agitated kettle 4, a discharge gate 5, an agitated kettle
Base 6, a rotary shaft 7, one second adjustable variable-frequency motor 8, a firm banking 9, at least two wheels 10, a connecting rod 11 and at least
One test specimen geometrical clamp 12；
The agitating shaft 2 is installed in the agitated kettle 4, and the first adjustable variable-frequency motor 1 is fixed on the agitating shaft 2
Upper end, the paddle 3 is fixed on the bottom of the agitating shaft 2, and the first adjustable variable-frequency motor 1 drives described stirring
Mixing axle 2 makes the paddle 3 be rotated by certain frequency, and the first adjustable variable-frequency motor 1 can be used to adjust the paddle 3
Rotating speed；
The second adjustable variable-frequency motor 8 is installed in the firm banking 9, and the bottom of the rotary shaft 7 is fixed on
The top of the second adjustable variable-frequency motor 8, the upper end of the rotary shaft 7 is connected to described by the stirring pan base 6
The bottom of agitated kettle 4, the second adjustable variable-frequency motor 8 drives the rotary shaft 7, and described stirring is made by the stirring pan base 6
Mix pot 4 to be rotated by certain frequency, the second adjustable variable-frequency motor 8 can be used to adjust the rotating speed of the agitated kettle 4；
One end of the connecting rod 11 is fixed on the side of the firm banking 9, the other end of the connecting rod 11 with
The test specimen geometrical clamp 12 is connected, and the test specimen geometrical clamp 12 is used to clamp mixed mud test specimen 13, by the mixed mud test specimen 13
It is fixed in the agitated kettle 4；
The center line of the agitating shaft 2 is differed with the center line of the rotary shaft 7, makes abrasion agent being scattered in evenly
In water；Meanwhile, punching is improved conversely, flow velocity can be adjusted in the direction of rotation of the direction of rotation of the paddle 3 and the agitated kettle 4
Mill efficiency；
The discharge gate 5 can be used to after trying to finish clean draining sediment outflow located at the bottom of the agitated kettle 4；
The wheel 10 is moved easily located at the bottom of the firm banking 9.
Operation principle of the present utility model is as follows：
Actual sand content in the high-velocity flow simulated as needed, water and fine sand are proportionally added into the agitated kettle 4,
By specification for a cube concrete sample 13 of (100 × 100 × 100) mm is clamped with the test specimen geometrical clamp 12, pass through
The connecting rod 11 makes the concrete sample 13 be fixed in the agitated kettle 4.Start instrument, the first adjustable variable-frequency electric
Machine 1 drives the agitating shaft 2 paddle 3 is rotated by certain frequency, drives current containing sand in the agitated kettle 4, meanwhile,
The second adjustable variable-frequency motor 8 drives the rotary shaft 7, makes the agitated kettle 4 occur to turn by the stirring pan base 6
Dynamic, the direction of rotation of the direction of rotation of the agitated kettle 4 and the paddle 3 is conversely, by adjusting the agitated kettle 4 and described
The rotating speed of paddle 3, current containing sand are rotated by certain flow rate in making the agitated kettle 4, and the mixed mud test specimen 13 reaches simulation
Influence of the actual punching mill of current containing sand at a high speed to waterpower project concrete performance, its scour ＆ wear resistance can be with the concrete sample 13 one
The ratio of dry mass before dry mass after fixed punching time consuming grinds with punching judges, i.e.,：
Dry mass × 100% before dry mass/punching mill after scour ＆ wear resistance energy=punching mill.
Advantage of the present utility model is as follows：
The utility model can be used to simulate test of the true high speed water sand punching mill on concrete performance influence, using paddle
3 eccentric stirrings, while agitated kettle 4 is rotated backward, can avoid being concentrated due to the abrasion agent being likely to occur when being stirred using concentric shafts
The shortcoming of the bottom of agitating shaft 2 is deposited in, makes abrasion agent being dispersed in water evenly, while flow velocity can also be adjusted, more truly
Simulating actual conditions, there is directly perceived true, process is simple, simple to operate.
Although the foregoing describing specific embodiment of the present utility model, those familiar with the art should
Work as understanding, the specific embodiment described by us is merely exemplary, rather than for the limit to scope of the present utility model
Fixed, those of ordinary skill in the art should in the equivalent modification and change made according to spirit of the present utility model
Cover in scope of the claimed protection of the present utility model.
Claims (4)
1. test instrument is ground in a kind of eccentric shaft type concrete for hydraulic structure water sand punching, it is characterised in that：Including one first adjustable variable-frequency motor,
One agitating shaft, at least a paddle, an agitated kettle, a stirring pan base, a rotary shaft, one second adjustable variable-frequency motor, one consolidate
Determine base, a connecting rod and an at least test specimen geometrical clamp, the agitating shaft is installed in the agitated kettle, and described first can modulation
Frequency motor is fixed on the upper end of the agitating shaft, and the paddle is fixed on the bottom of the agitating shaft；Described second can
Variable-frequency motor is adjusted to be installed in the firm banking, the described second adjustable variable-frequency motor is fixed in the bottom of the rotary shaft
Top, the upper end of the rotary shaft is connected to the stirring pot bottom by the stirring pan base；The one of the connecting rod
End is fixed on the side of the firm banking, and the other end of the connecting rod is connected with the test specimen geometrical clamp, the test specimen
Geometrical clamp is used to clamp mixed mud test specimen, and the mixed mud test specimen is fixed in the agitated kettle；The center of the agitating shaft
Line is differed with the center line of the rotary shaft.
2. test instrument is ground in a kind of eccentric shaft type concrete for hydraulic structure water sand punching as claimed in claim 1, it is characterised in that：It is described to stir
The bottom for mixing pot is provided with a discharge gate.
3. test instrument is ground in a kind of eccentric shaft type concrete for hydraulic structure water sand punching as claimed in claim 1, it is characterised in that：It is described solid
The bottom for determining base is provided with least two wheels.
4. test instrument is ground in a kind of eccentric shaft type concrete for hydraulic structure water sand punching as claimed in claim 1, it is characterised in that：It is described to stir
The direction of rotation for mixing leaf is opposite with the direction of rotation of the agitated kettle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621369480.XU CN206270195U (en) | 2016-12-14 | 2016-12-14 | A kind of eccentric shaft type concrete for hydraulic structure water sand punching mill test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621369480.XU CN206270195U (en) | 2016-12-14 | 2016-12-14 | A kind of eccentric shaft type concrete for hydraulic structure water sand punching mill test instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206270195U true CN206270195U (en) | 2017-06-20 |
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ID=59045428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621369480.XU Active CN206270195U (en) | 2016-12-14 | 2016-12-14 | A kind of eccentric shaft type concrete for hydraulic structure water sand punching mill test instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206270195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404581A (en) * | 2016-12-14 | 2017-02-15 | 福建省建筑科学研究院 | Concrete sand washing experiment apparatus for off-center shaft type irrigation work |
-
2016
- 2016-12-14 CN CN201621369480.XU patent/CN206270195U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404581A (en) * | 2016-12-14 | 2017-02-15 | 福建省建筑科学研究院 | Concrete sand washing experiment apparatus for off-center shaft type irrigation work |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181112 Address after: 350000 162 Yang Bridge Middle Road, Gulou District, Fuzhou, Fujian Co-patentee after: Fujian Academy of Building Research Patentee after: FUJIAN BUILDING ENGINEERING QUALITY INSPECTION CENTER CO., LTD. Address before: 350000 162 Yang Bridge Middle Road, Fuzhou, Fujian Patentee before: Fujian Academy of Building Research |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190214 Address after: 350000 162 Yang Bridge Middle Road, Gulou District, Fuzhou, Fujian Co-patentee after: Fujian Academy of Architectural Sciences Co., Ltd. Patentee after: FUJIAN BUILDING ENGINEERING QUALITY INSPECTION CENTER CO., LTD. Address before: 350000 162 Yang Bridge Middle Road, Gulou District, Fuzhou, Fujian Co-patentee before: Fujian Academy of Building Research Patentee before: FUJIAN BUILDING ENGINEERING QUALITY INSPECTION CENTER CO., LTD. |