CN212254946U - Multi-mode anti-erosion test instrument for inorganic binder stable material - Google Patents
Multi-mode anti-erosion test instrument for inorganic binder stable material Download PDFInfo
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- CN212254946U CN212254946U CN202021079762.2U CN202021079762U CN212254946U CN 212254946 U CN212254946 U CN 212254946U CN 202021079762 U CN202021079762 U CN 202021079762U CN 212254946 U CN212254946 U CN 212254946U
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Abstract
The utility model discloses a multi-mode inorganic binder stable material anti-scouring tester, which comprises a control system, an instrument shell, a driving device, a liquid storage cavity and a pressure head, wherein the pressure head is arranged on the upper part of the liquid storage cavity and connected with the driving device, and a fixing bracket for fixing a test piece is also arranged in the liquid storage cavity; the pressure head is provided with a sealing bag which is provided with a scouring hole and a fixing device, and the sealing bag completely wraps the test piece through the fixing device. The utility model discloses provide multiple load effect mode to different road surface structures, through sealing the bag package around the test piece, the water that seals the bag and can realize in the stock solution chamber under the drive of pressure head pumps and presses row, produces to erode and pump the effect to inside test piece, and the test process is stronger with the actual material environment uniformity. In addition, the test piece can be directly dried and weighed by the electric heating wire and the weighing platform after the scouring is finished, so that the operation flow is simplified, and the error caused by material transfer is reduced.
Description
Technical Field
The utility model relates to a material scour resistance performance detects technical field, concretely relates to a test device that is used for inorganic binder to stabilize material scour resistance.
Background
Inorganic binder stabilizing materials, such as cement stabilized macadam and the like, are widely applied to road base structures due to the characteristics of strong bearing capacity, convenient construction and the like, and according to a large number of engineering example research results, part of the road surface structures are damaged, and the strength of the road base material does not meet the load requirement, but is caused by poor road performance such as the anti-scouring performance of the base material, so that the anti-scouring performance test of the inorganic binder stabilizing materials is particularly important.
At present the anti-erosion test appearance commonly used need provide the scouring load with the help of equipment such as MTS, through the pressure head recurrence at the test piece top, the actual road surface structure wheel load effect of experimental simulation drives the rivers motion through the pressure head to and the recess on the pressure head rubber pad realizes that the load effect is gone down the scouring action to inorganic binder stabilizing material, then according to the variable quantity of test piece quality under rivers scouring action and the pressure head effect, appraise the anti-erosion performance of material.
However, the consistency of the scouring action borne by the traditional test method and the actual base material is poor, and only the condition that the top surface of the base layer bears the scouring action of water flow due to the fact that the surface layer material is damaged and cracks are generated can be simulated, but the influence of the scouring action of water flow under the penetrating cracks of the base layer on the base layer material cannot be simulated. When the base layer generates a through crack, the base layer material with the full section is affected by the scouring action of water flow, and the influence of the scouring action on the material performance is more remarkable, as shown in fig. 4. For different pavement structures, the load transmitted to the base layer is different, and the detection of the anti-scouring performance of the base layer of all pavement structures by only testing the load of the same kind is obviously not accurate enough. Moreover, the scouring action borne by the base material under the actual driving load action is divided into two actions of scouring and pumping, the traditional test method can only simulate the scouring action by driving liquid to flow through the pressure head, the pumping action is simulated through the groove of the rubber at the top of the pressure head, the main mass loss of the test is from the pressure head load action rather than the scouring action of the liquid, and the method is seriously inconsistent with the strong pumping action of the base under the semi-closed working environment under the actual load action. In addition, in the traditional experiment method, after the scouring action is finished, the test liquid needs to be transferred to an evaporating dish for drying, the quality of the fine aggregates in the liquid is measured, so that the scouring performance is evaluated, a small amount of fine aggregates are easy to attach to a test instrument, and the quality loss is easy to generate in the secondary transfer process, so that the accuracy of the detection of the anti-scouring performance is further influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to the defect that prior art exists, provide one kind through the sealed bag fully simulate basic unit's material erode under the rivers effect and pump suction process, make experimental effect more accord with actual action state, make the more accurate multi-mode inorganic binder stabilized material anti-scour test appearance of testing result.
In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a multi-mode inorganic binder stabilized material anti-scour test appearance, includes control system, instrument casing, drive arrangement, stock solution chamber and pressure head, and drive arrangement and stock solution chamber set up in the casing, and the pressure head sets up in stock solution chamber upper portion and is connected the structure that forms but up-and-down motion with drive arrangement, still is provided with the fixed bolster that is used for fixed test piece, its characterized in that in the stock solution chamber: be provided with flexible closed bag on the pressure head, be provided with the hole of erodeing that is used for the liquid business turn over on the lateral wall of closed bag, closed bag still is provided with fixing device, and the fixed messenger closed bag through fixing device wraps up the test piece completely, forms the water in the stock solution chamber through erodeing the hole and pumps and the pressure is arranged to erode the test piece and pump.
Furthermore, a weighing platform is arranged in the liquid storage cavity, the fixing support is arranged on the weighing platform, and the test piece is fixed on the weighing platform through a fixing bolt on the locking fixing support.
Furthermore, the fixing device arranged on the closed bag is a fixing ring with a closed bolt, the fixing ring is arranged at the lower part of the closed bag, the closed bag sleeves the test piece and enables the fixing ring to tightly hoop the weighing platform through locking the closed bolt to wrap the test piece, so that the closed bag forms a semi-closed environment, the closed bag is driven by the pressure head to suck and discharge water in the liquid storage cavity, the water enters and exits the closed bag through the flushing hole to flush the test piece, and the flushing and pumping effects are simulated.
Furthermore, the driving device comprises a multi-frequency motor, the multi-frequency motor is arranged on a lifting mechanism, and a transmission shaft of the multi-frequency motor is connected with an eccentric block to form a structure for applying vibration load to the test piece; the pressure head is installed in the bottom of a connecting rod, and the connecting rod is connected fixedly with the multifrequency motor.
Furthermore, the lifting mechanism comprises a lifting motor, the lifting motor is arranged at the top of the shell, the lifting motor is connected with a cross beam through a steel strand, two ends of the cross beam are respectively arranged on a lifting guide beam, and the lifting guide beam is arranged in the shell; the multi-frequency motor is arranged on the cross beam. In the test process, the eccentric block is driven to rotate by the multi-frequency motor so as to provide a vibration load; the beam is driven by the lifting motor to move up and down along the lifting guide beam in the vertical direction, and the beam is driven by the lifting motor to lift or fall through a steel strand, so that the position of a pressure head is controlled; the pressure head moves up and down along with the whole multi-frequency motor in the test process, so that the test piece is subjected to vibration load.
Furthermore, the side wall of the liquid storage cavity is provided with an electric heating wire to form a drying mechanism for the test piece after the scouring test. After the flushing process is finished and water is discharged out of the liquid storage cavity, heating the test piece through the electric heating wire to evaporate the water; after the test piece is completely dried, the quality of the test piece after the scouring action is measured through a weighing platform at the bottom, and the anti-scouring performance of the material is evaluated according to the loss of the mass of the test piece before and after the scouring action;
furthermore, a water outlet and a rubber plug matched with the water outlet are arranged at the bottom of one side of the liquid storage cavity, and a drainage guide pipe is connected to the lower part of the water outlet and used for directly draining water after the flushing is finished.
Further, set up in the bottom of pressure head with be used for contacting the rubber pad of test piece to prevent damaging the test piece.
Further, still including unable adjustment base, casing, stock solution chamber and weighing platform all set up on unable adjustment base, and control system is including control panel, and control panel sets up in unable adjustment base's front. The test parameters can be set through the control panel, the lifting of the pressure head is controlled in the test process, and when the stress of the base material of the cement concrete pavement is simulated in the test, the pressure of the pressure head is set to be 0.1 MPa; when the base material of the simulated asphalt mixture pavement is stressed, setting the pressure of a pressure head to be 0.7 MPa; and setting the load acting times according to the road traffic volume condition.
Preferably, the sealing bag is made of rubber materials, so that the sealing bag is low in cost, good in sealing effect, wear-resistant and durable.
The utility model sets different load action modes aiming at different pavement structures, thereby being capable of more accurately detecting the anti-scouring performance of the base materials of different pavement structures; through setting up the closed bag package around the test piece, the closed bag can realize sucking and pressure row to the water in the stock solution chamber under the drive of pressure head to produce to erode and pump the effect to the inside test piece, the testing process is stronger with actual material environment uniformity. In addition, after the washing is finished, the test piece can be directly dried and weighed through the electric heating wire and the weighing platform, and the anti-washing performance of the material is evaluated by calculating the mass difference of the test piece, so that the test operation of measuring the mass of the dissolved fine particles in water in the traditional method is simplified, and the error generated by the loss amount in the fine particle transfer process is reduced.
Therefore the utility model discloses can simulate different road surface structure basic unit material's scouring action better, equipment constitutes simply, and test procedure is simple and convenient, convenient operation, equipment operation is stable, safety.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the engagement of the sealing bladder with the mounting bracket;
FIG. 3 is a schematic view of the indenter;
in fig. 4, a is a schematic diagram of non-through flushing and b is a schematic diagram of through flushing.
In the figure, 1 is a shell, 2 is a lifting motor, 3 is a lifting guide beam, 4 is a cross beam, 5 is a connecting rod, 6 is a liquid storage cavity, 7 is a control panel, 8 is a fixing base, 9 is a guide pipe, 10 is a water outlet, 11 is a weighing platform, 12 is a fixing bolt, 13 is a fixing support, 14 is a sealing bolt, 15 is a sealing bag, 16 is a flushing hole, 17 is a pressure head, 18 is a multi-frequency motor, 19 is an eccentric block, 20 is a steel strand, 21 is an electric heating wire, and 22 is a rubber pad.
Detailed Description
The invention will be further explained by means of specific embodiments with reference to the accompanying drawings:
in this embodiment, referring to fig. 1, fig. 2 and fig. 3, the multi-mode inorganic binder stable material anti-erosion tester includes a control system, a casing 1 of the tester, a driving device, a liquid storage cavity 6 and a pressure head 17, wherein the driving device and the liquid storage cavity 6 are disposed in the casing 1, the pressure head 17 is disposed at the upper portion of the liquid storage cavity 6 and connected with the driving device to form a structure capable of moving up and down, and a fixing support 13 for fixing a test piece is further disposed in the liquid storage cavity 6; the pressure head 17 is provided with a flexible closed bag 15, the side wall of the closed bag 15 is provided with a scouring hole 16 for liquid to enter and exit, the closed bag 15 is also provided with a fixing device, the closed bag 15 completely wraps the test piece through the fixing of the fixing device, and a scouring and pumping structure for sucking and pressing water in the liquid storage cavity 6 is formed through the scouring hole 16.
A weighing platform 11 is arranged in the liquid storage cavity 6, the fixing support 13 is arranged on the weighing platform 11, and the test piece is fixed on the weighing platform 11 through the fixing bolt 12 on the locking fixing support 13, so that the test piece can be directly weighed. The weighing platform 11 may be a waterproof mechanical scale or a waterproof electronic scale.
The fixing device arranged on the closed bag 15 is a fixing ring (or hoop) with a closed bolt 14, the fixing ring is arranged at the lower part of the closed bag 15, the closed bag 15 sleeves a test piece and tightly hoops the weighing platform 11 by locking the closed bolt 14 to wrap the test piece, so that the closed bag 15 forms a semi-closed environment, the closed bag 15 is driven by a pressure head 17 to suck and discharge water in the liquid storage cavity 6, the water enters and exits the closed bag 15 through a flushing hole 16 to flush the test piece, and the flushing and pumping effects are simulated.
The driving device comprises a multi-frequency motor 18, the multi-frequency motor 18 is arranged on a lifting mechanism, and a transmission shaft of the multi-frequency motor 18 is connected with an eccentric block 19 to form a structure for applying vibration load to the test piece; the pressure head 17 is installed at the bottom of a connecting rod 5, and the connecting rod 5 is fixedly connected with the multi-frequency motor 18.
The lifting mechanism comprises a lifting motor 2, the lifting motor 2 is installed at the top of the shell 1, the lifting motor 2 is connected with a cross beam 4 through a steel strand 20, two ends of the cross beam 4 are respectively installed on a lifting guide beam 3, and the lifting guide beam 3 is installed in the shell 1; a multi-frequency motor 18 is mounted on the cross beam 4. In the test process, the multi-frequency motor 18 drives the eccentric block 19 to rotate so as to provide a vibration load; the beam is driven by the lifting motor 2 to move up and down along the lifting guide beam 3 in the vertical direction, and the beam 4 is driven by the lifting motor 2 to lift or fall through the steel strand 20, so that the position of the pressure head 17 is controlled; in the test process, the pressure head 17 moves up and down along with the whole multi-frequency motor 18, so that the test piece is subjected to vibration load.
And the side wall of the liquid storage cavity 6 is provided with an electric heating wire to form a drying mechanism for the test piece after the scouring test. After the flushing process is finished and water is discharged out of the liquid storage cavity 6, the test piece is heated by the electric heating wire 21 to evaporate the water; after the test piece is completely dried, the quality of the test piece after the scouring action is measured through a weighing platform 11 at the bottom, and the anti-scouring performance of the material is evaluated according to the loss of the quality of the test piece before and after the scouring action;
a water outlet 10 and a rubber plug matched with the water outlet 10 are arranged at the bottom of one side of the liquid storage cavity 6, and the lower part of the water outlet 10 is connected with a drainage conduit 9 for directly draining water after the washing is finished.
A rubber pad 22 for contacting the test piece is provided at the bottom of the indenter 17 to prevent damage to the test piece.
Still including unable adjustment base 8, casing 1, stock solution chamber 6 and weighing platform 11 all set up on unable adjustment base 8, and control system is including control panel 7, and control panel 7 sets up in unable adjustment base 8's front. The test parameters can be set through the control panel 7, the lifting of the pressure head 17 can be controlled in the test process, and when the stress of the base material of the cement concrete pavement is simulated in the test, the pressure of the pressure head 17 is set to be 0.1 MPa; when the base material of the simulated asphalt mixture pavement is stressed, the pressure of the pressure head 17 is set to be 0.7 MPa; and setting the load acting times according to the road traffic volume condition.
The sealing bag 15 is made of rubber materials, and is low in cost, good in sealing effect, wear-resistant and durable.
The working process is as follows: forming a test piece with a standard size according to standard requirements, placing the test piece on a weighing platform 11 to weigh the mass of the test piece after standard conditions are cured, and fixing the test piece through a fixing support 13 and a fixing bolt 14 after weighing is finished; the lifting motor 2 is controlled by the control panel 7 to put down the beam 4 together with the pressure head 17, so that the rubber pad 22 at the bottom of the pressure head 17 is completely contacted with the top surface of the test piece, and the steel strand 20 is in a loose state; the sealing bag 15 at the lower part of the pressure head 17 is put down to completely seal the test piece, and the sealing bag 15 is fixed on the weighing platform 11 through the sealing bolt 14 at the lower part of the sealing bag 15; the water level is higher than the top surface of the test piece by adding a proper amount of water into the liquid storage cavity 6, load parameters and action times are set through the control panel 7 according to the road surface structure and the actual load action condition, the pressure head load is 0.1MPa for the cement concrete road surface, the pressure head load is 0.7MPa for the asphalt mixture road surface, and after the test parameters are set, the multi-frequency motor 18 is started for a scouring test.
After the operation of the instrument is finished, the sealing bolt 14 is opened, the pressure head 17 is lifted to a proper height through the control panel 7, and the water outlet 10 is opened to discharge water in the liquid storage cavity 6 through the guide pipe 9; and (3) opening the fixing bolt 12, starting the heating wire 21 through the control panel 7 to heat and dry the test piece, measuring the quality of the test piece through the weighing platform 11, and heating until the quality reading of the test piece is not changed any more, wherein the test piece is completely dried at the moment. And recording the quality of the test piece at the moment, and calculating the quality loss of the test piece by combining the quality detection result before scouring, thereby evaluating the anti-scouring performance of the mixture.
The above detailed description of the present invention is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereto, i.e. all equivalent changes and modifications made in accordance with the scope of the present invention should be covered by the present invention.
Claims (10)
1. The utility model provides a multi-mode inorganic binder stabilized material anti-scour test appearance, includes control system, instrument casing, drive arrangement, stock solution chamber and pressure head, and drive arrangement and stock solution chamber set up in the casing, and the pressure head sets up in stock solution chamber upper portion and is connected the structure that forms but up-and-down motion with drive arrangement, still is provided with the fixed bolster that is used for fixed test piece, its characterized in that in the stock solution chamber: the pressure head is provided with a flexible closed bag, the closed bag is provided with a scouring hole for liquid to enter and exit, the closed bag is further provided with a fixing device, the closed bag completely wraps the test piece through the fixing of the fixing device, and a scouring and pumping structure for pumping and pressure-discharging water in the liquid storage cavity is formed through the scouring hole.
2. The multimode inorganic binder stabilized material antiscour tester of claim 1, wherein: and a weighing platform is arranged in the liquid storage cavity, the fixing support is arranged on the weighing platform, and the test piece is fixed on the weighing platform through a fixing bolt on the locking fixing support.
3. The multi-mode inorganic binder stabilized material antiscour tester of claim 2, wherein: the fixing device arranged on the closed bag is a fixing ring with a closed bolt, the fixing ring is arranged at the lower part of the closed bag, and the closed bag sleeves the test piece and tightly hoops the weighing platform by locking the closed bolt so as to wrap the test piece.
4. The multimode inorganic binder stabilized material antiscour tester of claim 1, wherein: the driving device comprises a multi-frequency motor, the multi-frequency motor is arranged on a lifting mechanism, and a transmission shaft of the multi-frequency motor is connected with an eccentric block to form a structure for applying vibration load to the test piece; the pressure head is installed in the bottom of a connecting rod, and the connecting rod is connected fixedly with the multifrequency motor.
5. The multi-mode inorganic binder stabilized material antiscour tester of claim 4, wherein: the lifting mechanism comprises a lifting motor, the lifting motor is arranged at the top of the shell, the lifting motor is connected with a cross beam through a steel strand, two ends of the cross beam are respectively arranged on a lifting guide beam, and the lifting guide beam is arranged in the shell; the multi-frequency motor is arranged on the cross beam.
6. The multimode inorganic binder stabilized material antiscour tester of claim 1, wherein: and the side wall of the liquid storage cavity is provided with an electric heating wire to form a baking mechanism for the test piece after the scouring test.
7. The multimode inorganic binder stabilized material antiscour tester of claim 1, wherein: the bottom of one side of the liquid storage cavity is provided with a water outlet and a rubber plug matched with the water outlet, and the lower part of the water outlet is connected with a guide pipe for draining water.
8. The multimode inorganic binder stabilized material antiscour tester of claim 1, wherein: the bottom of the pressure head is provided with a rubber pad which is used for contacting the test piece.
9. The multi-mode inorganic binder stabilized material antiscour tester of claim 2, wherein: the automatic weighing device is characterized by further comprising a fixed base, the shell, the liquid storage cavity and the weighing platform are all arranged on the fixed base, the control system comprises a control panel, and the control panel is arranged on the front side of the fixed base.
10. The multimode inorganic binder stabilized material antiscour tester of claim 1, wherein: the closed bag is made of rubber materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021079762.2U CN212254946U (en) | 2020-06-11 | 2020-06-11 | Multi-mode anti-erosion test instrument for inorganic binder stable material |
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| CN202021079762.2U CN212254946U (en) | 2020-06-11 | 2020-06-11 | Multi-mode anti-erosion test instrument for inorganic binder stable material |
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| CN212254946U true CN212254946U (en) | 2020-12-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114577653A (en) * | 2022-03-31 | 2022-06-03 | 南通宝田包装科技有限公司 | Wear-resisting check out test set of material for package printing |
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2020
- 2020-06-11 CN CN202021079762.2U patent/CN212254946U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114577653A (en) * | 2022-03-31 | 2022-06-03 | 南通宝田包装科技有限公司 | Wear-resisting check out test set of material for package printing |
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