CN211784839U - Concrete durability test environment simulation device - Google Patents
Concrete durability test environment simulation device Download PDFInfo
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- CN211784839U CN211784839U CN202020410583.6U CN202020410583U CN211784839U CN 211784839 U CN211784839 U CN 211784839U CN 202020410583 U CN202020410583 U CN 202020410583U CN 211784839 U CN211784839 U CN 211784839U
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Abstract
The utility model provides a concrete durability test environmental simulation device, including device body, water pressure analog system, vibration analog system, be used for placing the fixing base and the sealed lid of concrete test block. The water pressure simulation system comprises a water pressure sensor, a gas-liquid booster pump and a plurality of signal modules, the vibration simulation system comprises a sealing frame and a vibration mechanism, and a power output device of the vibration mechanism is connected with the fixed seat. And starting the water pressure simulation system, and under the control of the water pressure sensor and the signal modules, injecting water and pressurizing or pumping water and releasing pressure by the gas-liquid booster pump to enable the water pressure value in the device body to reach the test water pressure value. And starting the vibration simulation system, and vibrating the concrete test block up and down under the driving of the power output device, wherein the concrete test block is in a coexistence environment of high water pressure and vibration. The utility model provides a problem that relevant experiment lacks the hardware facilities, water pressure value and vibration state can freely be adjusted, and the suitability is good.
Description
Technical Field
The utility model belongs to civil engineering durability test field, concretely relates to concrete durability test environmental simulation device.
Background
The building structures of partial tunnels and ports can vibrate under the combined action of vehicle vibration load and water flow impact, and can be corroded by harmful ions in rivers, lakes and seas during service. Research has shown that under the action of high water pressure, harmful ions will accelerate the penetration into the concrete, thereby accelerating the deterioration of the concrete structure. In addition, the vibration response of the building structures of the tunnel and the port caused by the external environment has the characteristics of long duration and periodic appearance, and can run through the whole service period. Therefore, the research on the durability of the concrete under the coupling action of high water pressure and vibration is of great significance.
However, the prior art lacks the test equipment required for the relevant research, and the development of the research is limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome shortcoming and not enough among the prior art, provide a concrete durability test environmental simulation device to solve the problem that relevant experimental study lacks the hardware facilities condition, fill the technical blank.
The utility model provides a technical scheme that its technical problem adopted is:
a concrete durability test environment simulation device comprises a device body, a water pressure simulation system, a vibration simulation system and a fixed seat for placing a concrete test block;
the device body is provided with an accommodating cavity, a water inlet and a water outlet which are communicated with the accommodating cavity;
the water pressure simulation system comprises a water flow control device, and the water flow control device is communicated with the water inlet;
the vibration simulation system comprises a vibration mechanism, the vibration mechanism is installed in the containing cavity, the power output end of the vibration mechanism is in transmission connection with the fixed seat, and the fixed seat moves synchronously along with the vibration mechanism.
Preferably, the water pressure simulation system further comprises a water pressure sensing device, the working end of the water pressure sensing device is inserted into the accommodating cavity, and the water pressure sensing device is in signal connection with the water flow control device.
Preferably, the water pressure sensing device is integrated with a water pressure sensor, a receiving module, a judging module and a control module, the water pressure sensor, the receiving module, the judging module and the control module are sequentially in signal connection, and the control module is in signal connection with the water flow control device.
Preferably, the vibration mechanism includes a drive shaft and a power output device:
the driving shaft is connected with the power output device, the power output device reciprocates up and down along with the rotation of the driving shaft, and the power output end of the power output device is in transmission connection with the fixed seat.
Preferably, the vibration simulation system further comprises a sealing frame, the sealing frame is arranged in the accommodating cavity, the interior of the sealing frame and the accommodating cavity are sealed and isolated relatively, and the vibration mechanism is arranged in the sealing frame;
the power output device comprises a connecting rod, a hole for the connecting rod to penetrate out is formed in the sealing frame, and an elastic sealing material is arranged between the hole and the connecting rod.
Preferably, the power output device further includes a follower rod, one end of the follower rod is hinged to the connecting rod, the other end of the follower rod is hinged to the drive shaft, and a hinge axis of the follower rod on the drive shaft is parallel to a rotation axis of the drive shaft.
Preferably, the fixing seat comprises a test block bottom plate and a test block top plate which are arranged oppositely, the concrete test block is clamped between the test block bottom plate and the test block top plate, the test block bottom plate is connected with the connecting rod, and the test block bottom plate and the test block top plate are fastened and connected through a fastening piece.
Preferably, the device body is also provided with a sealing cover, and the surfaces of the device body and the sealing cover contacting with the solution are provided with corrosion-resistant coatings.
Preferably, a rubber sealing ring is installed between the device body and the sealing cover, and the sealing cover is connected with the device body through a bolt.
Compared with the prior art, the beneficial effects of the utility model are that:
in this scheme, the concrete durability test device of simulation water pressure and vibration coexistence environment provides hardware equipment for carrying out the concrete durability test under the corresponding condition, the rivers controlling means that starts water pressure analog system holds the intracavity water injection pressure boost to the device body, the power take off who starts vibration analog system makes the concrete test block on the fixing base that is connected with power take off end realize the vibration, simulate a high water pressure and vibration coupling's test environment, filled relevant experimental technological blank.
In this scheme, water pressure analog system's water pressure induction system accomplishes the water injection pressure boost or the pressure release of drawing water to the water pressure value real-time detection who holds the intracavity and control the water flow control device, makes the water pressure value reach and predetermines the water pressure value. The power of the driving motor is adjusted to change the vibration frequency, the spacing distance between the transmission rod and the driving shaft is adjusted to change the vibration amplitude, the test water pressure value and the vibration state can be freely adjusted, the operation is simple and convenient, and the applicability is good.
In this scheme, the device body is provided with sealed lid, still installs rubber seal between device body and the sealed lid, and the inside chamber leakproofness that holds of device body is good, and experimental stability is high. The vibration simulation system is provided with sealed frame, sealed frame's inside with hold the chamber sealed separation relatively, the vibration mechanism sets up in sealed frame, avoids solution corrosion damage vibration mechanism, the long service life of device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of a vibration mechanism according to the present invention.
Wherein:
the device comprises a device body 1, a sealing cover 2, a fastening bolt 3, a water inlet 4, a water outlet 5, a power chamber 6, a main driving shaft 7, a driven driving shaft 8, a driving motor 9, a main disc I10, a main disc II 11, a first auxiliary shaft 12, a follower rod 13, a second auxiliary shaft 14, a connecting rod 15, a test block base plate 16, a test block top plate 17, a bolt 18, a concrete test block 19, a power regulator 20, a vibrating string type water pressure sensor 21, a water pressure signal receiving module 22, a water pressure signal judging module 23, a hydraulic control module 24 and a gas-liquid booster pump 25.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and detailed description. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, and the described embodiments are merely some embodiments, rather than all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1
As shown in fig. 1 to 2, the present embodiment provides a concrete durability test environment simulation apparatus, which includes an apparatus body 1, a water pressure simulation system, a vibration simulation system, a fixing seat for placing a concrete test block 19, and a sealing cover 2.
The device body 1 is internally provided with a containing cavity, the outside of the device body is provided with a water inlet 4 and a water outlet 6 which are communicated with the containing cavity, and the sealing cover 2 is fixedly connected with the device body 1 through bolts to prevent the water solution in the containing cavity from leaking to cause the inconsistency of the water pressure value in the containing cavity and the preset test value to influence the test.
The water pressure simulation system comprises a water flow control device which is communicated with the water inlet 4. The vibration simulation system comprises a vibration mechanism, the vibration mechanism is installed in the containing cavity, the power output end of the vibration mechanism is in transmission connection with the fixed seat, and the fixed seat moves synchronously along with the vibration mechanism.
As a preferred scheme, the water pressure simulation system comprises a water pressure sensing device and a water flow control device, wherein the water flow control device is specifically a gas-liquid booster pump 25 and can complete the work of water injection pressurization and water pumping and pressure relief. The hydraulic pressure sensing device is integrated with a vibrating wire type hydraulic pressure sensor 21, a hydraulic pressure signal receiving module 22, a hydraulic pressure signal judging module 23 and a hydraulic pressure control module 24, and the vibrating wire type hydraulic pressure sensor 21, the hydraulic pressure signal receiving module 22, the hydraulic pressure signal judging module 23 and the hydraulic pressure control module 24 are sequentially in signal connection. The water pressure sensing device is provided with one end of a vibrating wire type water pressure sensor 21 as a working end, and the vibrating wire type water pressure sensor 21 is inserted into the accommodating cavity and used for detecting a water pressure value in the accommodating cavity and feeding the water pressure value back to the water pressure signal receiving module 22. And the gas-liquid booster pump 25 is communicated with the water inlet 4 and is in signal connection with the hydraulic control module 24 of the water pressure sensing device, so that the water pressure value in the accommodating cavity is detected in real time, and the stable running of the test is ensured.
As a preferred scheme, the vibration simulation system includes the vibration mechanism, the vibration mechanism install hold the intracavity, the power take off end of vibration mechanism with the fixing base transmission is connected, just the fixing base is along with the motion of vibration mechanism and synchronous motion. The vibration mechanism comprises a driving motor 9, a main driving shaft 7, a driven driving shaft 8, a first main disk 10 and a second main disk 11. The driving motor 9 is installed in the accommodating cavity, one end of the main driving shaft 7 is fixedly connected with the driving motor 9, and the other end of the main driving shaft 7 is fixedly arranged in the first main disc 10. One end of the driven shaft 8 is fixedly arranged in the second main disc 11, and the main driving shaft 7, the first main disc 10, the driven shaft 8 and the second main disc 11 are arranged in bilateral symmetry.
Further, the vibration mechanism further comprises a power output device, the power output device comprises a first auxiliary shaft 12, a follower rod 13, a second auxiliary shaft 14 and a connecting rod 15, a connecting through hole is formed in one end of the follower rod 13, the first auxiliary shaft 12 is inserted into the connecting through hole in a free rotating mode, and two ends of the first auxiliary shaft 12 are fixedly arranged between the first main disc 10 and the second main disc 11 which are bilaterally symmetrical respectively. One end of the connecting rod 15 is set as a power output end of the vibration mechanism, and the other end of the connecting rod 15 is connected with the other end of the follower rod 13.
Further, the other end of the connecting rod 15 is provided with three connecting rod lugs, the other end of the follower rod 13 is provided with two follower rod lugs corresponding to the connecting rod lugs, through holes are formed in the connecting rod lugs and the follower rod lugs, the second auxiliary shaft 14 is inserted into the through holes in a free rotating manner, and the connecting rod 15 is hinged to the follower rod 13. The power output device drives the concrete test block 19 to vibrate up and down under the rotation of the main driving shaft 7 of the vibration mechanism.
Preferably, the axes of the main driving shaft 7, the auxiliary driving shaft 8, the first main disc 10 and the second main disc 11 are arranged coaxially, the axis of the first auxiliary shaft 12 is arranged parallel to the axis of the first main disc 10, the distance between the two axes can be freely adjusted, and the vibration amplitude of the concrete test block 19 can be adjusted by changing the distance. The vibration mechanism is further provided with a power regulator 20, the power regulator 20 is in signal connection with the driving motor 9, and the vibration frequency of the concrete test block 19 can be changed by regulating the output power of the driving motor 9 through the power regulator 20. The operation is simple and quick, and the practicability is strong.
As a preferred scheme, the vibration simulation system still includes sealed frame, sealed frame sets up hold the intracavity and with sealed frame's inside with hold the chamber and seal the separation relatively, sealed frame's inside is power house 6, vibration mechanism installs in power house 6, guarantee to hold the aqueous solution of intracavity and can not permeate the power house in, thereby avoid vibration mechanism damages.
Further, the driving motor 9 is installed on the inner wall of the sealing frame, one end of the main driving shaft 7 is freely rotatably installed on the inner wall of the sealing frame after passing through the driving motor 9, and the other end of the driven driving shaft 8 is freely rotatably installed on the inner wall of the sealing frame.
As a preferable scheme, a hole for the connection rod 15 to penetrate through is formed in the sealing frame, a clearance fit is formed between the hole and the connection rod 15, and an elastic sealing material is arranged in the clearance, so that the problem that the water solution in the containing cavity enters the power chamber 6 to influence the vibration machine is better avoided.
As a preferable scheme, the fixing seat includes a test block bottom plate 16 and a test block top plate 17, and the concrete test block 19 is sandwiched between the test block bottom plate 16 and the test block top plate 17. The test block bottom plate 16 is fixedly connected with the connecting rod 15.
Further, the test block bottom plate 16 and the test block top plate 17 are provided with four corresponding threaded holes, and four adaptive sets of bolts 18 and nuts are arranged corresponding to the threaded holes. The concrete test block 19 is placed on the test block bottom plate 16, the test block top plate 17 is covered, the bolt 18 is screwed down, and the concrete test block 19 is clamped and fixed on the fixing seat.
Preferably, a rubber sealing ring is installed between the device body 1 and the sealing cover 2 to further perform a sealing function. The surface of the device body 1 and the surface of the sealing cover 2 contacting with the solution are also provided with an anti-corrosion coating, so that the device is prevented from being corroded by the aqueous solution, and the service life of the device is prolonged.
The utility model discloses a theory of operation: and starting the water pressure simulation system, and under the control of the water pressure sensor and the signal modules, injecting water and pressurizing or pumping water and releasing pressure by the gas-liquid booster pump to enable the water pressure value in the device body to reach the test water pressure value. And starting the vibration simulation system, and vibrating the concrete test block up and down under the driving of the power output device, wherein the concrete test block is in a coexistence environment of high water pressure and vibration. During the test, if the pressure value of the aqueous solution in the accommodating cavity is higher than or lower than the test water pressure value, the hydraulic control module is started again through the real-time signal judgment of the water pressure signal judgment module, a command signal for pumping water, releasing pressure or injecting water and pressurizing is sent to the water flow control device, and the pressure value of the aqueous solution in the accommodating cavity returns to the test water pressure value again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (9)
1. A concrete durability test environment simulation device is characterized by comprising a device body, a water pressure simulation system, a vibration simulation system and a fixing seat for placing a concrete test block;
the device body is provided with an accommodating cavity, a water inlet and a water outlet which are communicated with the accommodating cavity;
the water pressure simulation system comprises a water flow control device, and the water flow control device is communicated with the water inlet;
the vibration simulation system comprises a vibration mechanism, the vibration mechanism is installed in the containing cavity, the power output end of the vibration mechanism is in transmission connection with the fixed seat, and the fixed seat moves synchronously along with the vibration mechanism.
2. The concrete durability test environment simulation device of claim 1, wherein the water pressure simulation system further comprises a water pressure sensing device, a working end of the water pressure sensing device is inserted into the accommodating cavity, and the water pressure sensing device is in signal connection with the water flow control device.
3. The concrete durability test environment simulation device of claim 2, wherein the water pressure sensing device is integrated with a water pressure sensor, a receiving module, a judging module and a control module, the water pressure sensor, the receiving module, the judging module and the control module are sequentially in signal connection, and the control module is in signal connection with the water flow control device.
4. The concrete durability test environment simulation apparatus according to claim 1, wherein the vibration mechanism includes a drive shaft and a power output device:
the driving shaft is connected with the power output device, the power output device reciprocates up and down along with the rotation of the driving shaft, and the power output end of the power output device is in transmission connection with the fixed seat.
5. The concrete durability test environment simulation device according to claim 4, wherein the vibration simulation system further comprises a sealing frame, the sealing frame is arranged in the accommodating cavity, the inner part of the sealing frame is sealed and isolated from the accommodating cavity, and the vibration mechanism is arranged in the sealing frame;
the power output device comprises a connecting rod, a hole for the connecting rod to penetrate out is formed in the sealing frame, and an elastic sealing material is arranged between the hole and the connecting rod.
6. The concrete durability test environment simulation device according to claim 5, wherein the power output device further comprises a follower rod, one end of the follower rod is hinged to the connecting rod, the other end of the follower rod is hinged to the driving shaft, and a hinge axis of the follower rod on the driving shaft is parallel to a rotation axis of the driving shaft.
7. The concrete durability test environment simulation device of claim 5, wherein the fixing seat comprises a test block bottom plate and a test block top plate which are arranged oppositely, the concrete test block is clamped between the test block bottom plate and the test block top plate, the test block bottom plate is connected with the connecting rod, and the test block bottom plate and the test block top plate are fastened and connected through a fastening piece.
8. The concrete durability test environment simulation device according to claim 1, wherein the device body is further provided with a sealing cover, and the surfaces of the device body and the sealing cover contacting the solution are provided with corrosion-resistant coatings.
9. The concrete durability test environment simulation device according to claim 8, wherein a rubber seal ring is installed between the device body and the seal cover, and the seal cover is connected with the device body through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020410583.6U CN211784839U (en) | 2020-03-26 | 2020-03-26 | Concrete durability test environment simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020410583.6U CN211784839U (en) | 2020-03-26 | 2020-03-26 | Concrete durability test environment simulation device |
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| Publication Number | Publication Date |
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| CN211784839U true CN211784839U (en) | 2020-10-27 |
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| CN202020410583.6U Active CN211784839U (en) | 2020-03-26 | 2020-03-26 | Concrete durability test environment simulation device |
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| CN (1) | CN211784839U (en) |
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