Equipment for recycled concrete preparation performance test
By incorporating a bidirectional lead screw and detachable clamp design, along with temperature, humidity control, and servo control technologies, the problem of existing equipment being unable to adapt to recycled concrete of different sizes and shapes has been solved, enabling multivariate simulation and reliable results in recycled concrete performance testing.
Patent Information
- Application Number
- CN202520400120.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing recycled concrete performance testing equipment cannot simulate complex real-world conditions, such as temperature, humidity, and load rate, and the fixed fixtures cannot adapt to recycled concrete of different sizes and shapes, reducing the equipment's versatility and flexibility.
The design employs a bidirectional lead screw and detachable clamps, combined with temperature and humidity control mechanisms and servo control technology, to clamp recycled concrete of different sizes and shapes and simulate performance tests under multivariable conditions.
It improves the versatility and flexibility of the equipment, enabling it to adapt to recycled concrete of different sizes and shapes, ensuring the reliability and accuracy of test results, and providing simulation capabilities under multivariable conditions.
Smart Images
Figure CN223897212U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building material performance test technical field especially, a kind of equipment for recycled concrete preparation performance test. BACKGROUND
[0002] At present, with the improvement of environmental protection consciousness, recycled concrete as a kind of green building material is widely concerned, and recycled concrete refers to the waste concrete block after crushing, washing, grading, mixed according to certain proportion and grading, partially or entirely replaces sandstone etc. Natural aggregate (mainly coarse aggregate), then add cement, water and other new concrete formed by configuration;New concrete due to uncertain compressive performance, to ensure the quality and safety of construction, the performance of recycled concrete will be tested.
[0003] The existing recycled concrete performance test equipment usually uses traditional press or universal testing machine to carry out single performance test, such as compressive strength, bending strength etc. Although these devices can meet the basic test requirements, they cannot simulate complex actual working conditions, such as temperature, humidity, load rate and other variable conditions, and the fixture in the current recycled concrete performance test equipment is relatively fixed, which cannot adapt to recycled concrete of different sizes and shapes, reducing the versatility and flexibility of the equipment. SUMMARY
[0004] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a kind of equipment for recycled concrete preparation performance test.
[0005] The technical scheme of the utility model is as follows: a kind of equipment for recycled concrete preparation performance test, including bottom plate, the top of the bottom plate is fixedly connected with test box, two installation grooves are set in the bottom end of the inner wall of the test box, one of the installation grooves is rotatably connected with bidirectional screw rod, the other installation groove is fixedly connected with fixed rod, the outer side of the bidirectional screw rod is screw-connected with screw block at both ends, the outer side of the fixed rod is slidably connected with two sliding blocks, clamping piece is arranged between the sliding block and screw block, data acquisition instrument is fixedly installed on the outer side of the test box, controller is fixedly installed on the top of the test box.
[0006] By using the above technical scheme, the two screw blocks can be moved towards or away from each other by rotating the bidirectional screw rod, and the fixed rod and sliding block are used together to make the clamping piece travel more smoothly, so that different sizes of recycled concrete can be clamped, and the versatility and flexibility of the equipment can be improved by setting the detachable mechanism.
[0007] In a preferred embodiment, the test chamber is equipped with a temperature control mechanism, which includes a temperature sensor fixedly installed on one side of the inner wall of the test chamber. A temperature control system is fixedly installed on the rear side of the test chamber, and the output shaft of the temperature control system extends into the interior of the test chamber. The temperature control system adopts PID control technology.
[0008] By adopting the above technical solution and setting up a temperature sensor, the temperature inside the test chamber can be monitored and the information can be transmitted to the controller. The controller can then adjust the temperature control system's settings.
[0009] In a preferred embodiment, the test chamber is equipped with a humidity control mechanism, which includes a humidity sensor fixedly installed on the inner wall of the test chamber, and a humidifier fixedly installed on the outer side of the test chamber, with the output shaft of the humidifier extending into the interior of the test chamber.
[0010] By adopting the above technical solution and setting up a humidity sensor, the humidity inside the test chamber can be monitored.
[0011] In a preferred embodiment, the clamping member is provided with detachable mechanisms on both sides. The detachable mechanisms include mounting plates fixedly connected to both sides of the clamping member. Each mounting plate is provided with fixing bolts inside, and each mounting plate is connected to the threaded block and the slider by fixing bolts.
[0012] By adopting the above technical solution, the clamping components can be easily replaced through the use of mounting plates and fixing bolts, allowing workers to change the shape of the clamps according to the shape of the recycled concrete.
[0013] In a preferred embodiment, the top of the test chamber is provided with a mating mechanism, which includes a cylinder fixedly installed on the top of the test chamber. The cylinder incorporates servo control technology, and the piston rod of the cylinder extends into the interior of the test chamber and is fixedly connected to an electromagnetic block. A pressure plate is provided at the bottom of the electromagnetic block.
[0014] By adopting the above technical solution, servo control technology is introduced into the cylinder to achieve precise control of the load rate, so as to simulate the effect of different loading rates on the performance of recycled concrete.
[0015] In a preferred embodiment, the mating mechanism further includes a fixing groove formed inside the pressure plate, wherein an iron block is embedded in the inner wall of the fixing groove.
[0016] By adopting the above technical solution, the electromagnetic block is powered, making it magnetic, and thus able to be tightly attracted to the iron block inside the pressure plate, making the replacement and installation of the pressure plate more convenient.
[0017] In a preferred embodiment, a dust collection trough is provided inside the test chamber and below the bidirectional lead screw, and a dust collection drawer is slidably connected inside the dust collection trough. A sealing door is hinged to the outside of the test chamber.
[0018] By adopting the above technical solution and setting up a dust collection drawer, residual concrete sand after the test can be collected and easily disposed of in a unified manner.
[0019] In a preferred embodiment, a servo motor is fixedly installed on the outside of the test chamber, and the output shaft of the servo motor extends into the interior of the mounting groove and is fixedly connected to a bidirectional lead screw.
[0020] By adopting the above technical solution, the rotation of the output shaft of the servo motor can drive the bidirectional lead screw to rotate.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] 1. In this utility model, the rotation of the bidirectional lead screw can drive two threaded blocks to move in opposite directions. Through the cooperation of the fixed rod and the slider, the clamping parts move more smoothly, thus enabling clamping operations on recycled concrete of different sizes. Furthermore, the detachable mechanism allows for quick changes in the shape of the clamp, thereby improving the versatility and flexibility of the equipment. With the data acquisition instrument, various data during the test can be recorded in real time, providing a basis for subsequent analysis.
[0023] 2. In this utility model, the temperature control system adopts PID control technology, which can improve the accuracy and stability of temperature control and ensure the reliability of test results. Servo control technology is introduced into the cylinder to achieve precise control of the load rate, so as to simulate the influence of different loading rates on the performance of recycled concrete. The humidity control mechanism and the temperature control mechanism are used to adjust the temperature and humidity of the test environment to simulate the usage scenarios under different climatic conditions. Through the data acquisition instrument settings, various data during the test process can be recorded in real time, providing a basis for subsequent analysis. Attached Figure Description
[0024] Figure 1 This utility model provides an overall perspective view of an apparatus for testing the performance of recycled concrete preparation;
[0025] Figure 2 This utility model provides an internal structural diagram of an apparatus for testing the performance of recycled concrete preparation;
[0026] Figure 3 A rear view of an apparatus for testing the performance of recycled concrete preparation, provided by this utility model;
[0027] Figure 4 This invention provides a method for performance testing of recycled concrete preparation. Figure 2 Enlarged view of point A in the middle.
[0028] Legend: 1. Base plate; 2. Test chamber; 3. Data acquisition instrument; 4. Servo motor; 5. Controller; 6. Cylinder; 7. Temperature sensor; 8. Humidifier; 9. Humidity sensor; 10. Electromagnetic block; 11. Pressure plate; 12. Iron block; 13. Fixing groove; 14. Two-way lead screw; 15. Mounting groove; 16. Fixing rod; 17. Slider; 18. Clamping component; 19. Threaded block; 20. Mounting plate; 21. Fixing bolt; 22. Temperature control system. Detailed Implementation
[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0030] Reference Figures 1-4 A device for testing the performance of recycled concrete preparation includes a base plate 1, a test chamber 2 fixedly connected to the top of the base plate 1, two mounting slots 15 formed at the bottom of the inner wall of the test chamber 2, a bidirectional lead screw 14 rotatably connected inside one mounting slot 15, and a fixing rod 16 fixedly connected inside the other mounting slot 15, threaded blocks 19 threaded to both ends of the outer side of the bidirectional lead screw 14, two sliders 17 slidably connected to the outer side of the fixing rod 16, and a clamping member 18 provided between the sliders 17 and the threaded blocks 19, and a data acquisition device fixedly installed on the outer side of the test chamber 2. The controller 5 is fixedly installed on the top of the instrument 3 and the test chamber 2. By rotating the bidirectional lead screw 14, it can drive the two threaded blocks 19 to move in opposite directions. Through the cooperation of the fixed rod 16 and the slider 17, the clamping part 18 moves more smoothly, thus enabling clamping operations on recycled concrete of different sizes. The detachable mechanism allows for quick replacement of the clamp shape, thereby improving the versatility and flexibility of the equipment. The data acquisition instrument 3 can record various data during the test in real time, providing a basis for subsequent analysis.
[0031] Reference Figure 4The test chamber 2 is equipped with a temperature control mechanism, which includes a temperature sensor 7 fixedly installed on one side of the inner wall of the test chamber 2. A temperature control system 22 is fixedly installed on the rear side of the test chamber 2. The output shaft of the temperature control system 22 extends into the interior of the test chamber 2. The temperature control system 22 adopts PID control technology. By adopting PID control technology, the accuracy and stability of temperature control can be improved, ensuring the reliability of test results. Through the setting of the temperature sensor 7, the temperature inside the test chamber 2 can be monitored and the information can be transmitted to the controller 5. The controller 5 can adjust the adjustment level of the temperature control system 22 to ensure that the test chamber 2 is continuously at the appropriate temperature.
[0032] Reference Figure 2 The test chamber 2 is equipped with a humidity control mechanism, which includes a humidity sensor 9 fixedly installed on the inner wall of the test chamber 2 and a humidifier 8 fixedly installed on the outer side of the test chamber 2. The output shaft of the humidifier 8 extends into the interior of the test chamber 2. Through the setting of the humidity sensor 9, the humidity inside the test chamber 2 can be monitored, and the dry and wet environment of the test chamber 2 can be regulated by the humidifier 8.
[0033] Reference Figure 4 The clamping member 18 is provided with detachable mechanisms on both sides. The detachable mechanisms include mounting plates 20 fixedly connected to both sides of the clamping member 18. Each mounting plate 20 is provided with fixing bolts 21. The mounting plates 20 are connected to the threaded block 19 and the slider 17 by fixing bolts 21. By using the mounting plates 20 and fixing bolts 21 together, the clamping member 18 can be easily replaced, allowing the operator to change the shape of the clamp according to the shape of the recycled concrete, thereby improving the flexibility of the device.
[0034] Reference Figure 2 The test chamber 2 is equipped with a matching mechanism at the top. The matching mechanism includes a cylinder 6 fixedly installed at the top of the test chamber 2. The cylinder 6 incorporates servo control technology. The piston rod of the cylinder 6 extends into the interior of the test chamber 2 and is fixedly connected to an electromagnetic block 10. A pressure plate 11 is provided at the bottom of the electromagnetic block 10. By incorporating servo control technology into the cylinder 6, the load rate can be precisely controlled to simulate the effect of different loading rates on the performance of recycled concrete.
[0035] Reference Figure 2 The cooperating mechanism also includes a fixing groove 13 inside the pressure plate 11. An iron block 12 is embedded in the inner wall of the fixing groove 13 to supply power to the electromagnetic block 10, so that the electromagnetic block 10 has magnetism and can be tightly attracted to the iron block 12 inside the pressure plate 11, making the replacement and installation of the pressure plate 11 more convenient, saving time and effort.
[0036] Reference Figure 1The test chamber 2 has a dust collection trough located inside and below the bidirectional screw 14. A dust collection drawer is slidably connected inside the dust collection trough. A sealed door is hinged on the outside of the test chamber 2. The dust collection drawer can be used to collect residual concrete sand after the test and facilitate its unified treatment.
[0037] Reference Figure 2 A servo motor 4 is fixedly installed on the outside of the test chamber 2. The output shaft of the servo motor 4 extends into the interior of the mounting groove 15 and is fixedly connected to the bidirectional lead screw 14. The rotation of the output shaft of the servo motor 4 can drive the bidirectional lead screw 14 to rotate.
[0038] Working principle: First, the recycled concrete sample is placed on the test chamber 2. The servo motor 4 is started by the controller 5. The rotation of the bidirectional lead screw 14 can drive the two threaded blocks 19 to move in opposite directions. With the cooperation of the fixed rod 16 and the slider 17, the clamping part 18 moves more smoothly, thus enabling the clamping operation of recycled concrete of different sizes. With the cooperation of the mounting plate 20 and the fixing bolt 21, the clamping part 18 can be easily replaced, allowing the operator to change the shape of the clamp according to the shape of the recycled concrete, thereby improving the versatility and flexibility of the equipment.
[0039] Temperature sensor 7 monitors the temperature inside test chamber 2 and transmits the information to controller 5. Controller 5 adjusts the temperature control system 22 to ensure the test chamber 2 remains at a suitable temperature. Humidity sensor 9 monitors the humidity inside test chamber 2, and humidifier 8 regulates the dry and wet environment. Temperature control system 22 uses PID control technology to improve the accuracy and stability of temperature control, ensuring the reliability of test results. Servo control technology is introduced into cylinder 6 to achieve precise control of the load rate, simulating the impact of different loading rates on the performance of recycled concrete. Humidity control and temperature control mechanisms are used to adjust the temperature and humidity of the test environment to simulate usage scenarios under different climatic conditions. Data acquisition instrument 3 records various data during the test in real time, providing a basis for subsequent analysis.
[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0041] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An apparatus for testing the performance of recycled concrete preparation, comprising a base plate (1), characterized in that: The test chamber (2) is fixedly connected to the top of the base plate (1). Two mounting slots (15) are opened at the bottom of the inner wall of the test chamber (2). A two-way screw rod (14) is rotatably connected inside one of the mounting slots (15), and a fixing rod (16) is fixedly connected inside the other mounting slot (15). Threaded blocks (19) are threaded to both ends of the outer side of the two-way screw rod (14). Two sliders (17) are slidably connected to the outer side of the fixing rod (16). A clamping part (18) is provided between the slider (17) and the threaded block (19). A data acquisition instrument (3) is fixedly installed on the outer side of the test chamber (2), and a controller (5) is fixedly installed on the top of the test chamber (2).
2. The equipment for testing the performance of recycled concrete preparation according to claim 1, characterized in that: The test chamber (2) is equipped with a temperature control mechanism, which includes a temperature sensor (7) fixedly installed on one side of the inner wall of the test chamber (2). A temperature control system (22) is fixedly installed on the rear side of the test chamber (2). The output shaft of the temperature control system (22) extends into the interior of the test chamber (2). The temperature control system (22) adopts PID control technology.
3. The apparatus for testing the performance of recycled concrete preparation according to claim 1, characterized in that: The test chamber (2) is equipped with a humidity control mechanism, which includes a humidity sensor (9) fixedly installed on the inner wall of the test chamber (2). A humidifier (8) is fixedly installed on the outer side of the test chamber (2), and the output shaft of the humidifier (8) extends into the interior of the test chamber (2).
4. The apparatus for testing the performance of recycled concrete preparation according to claim 1, characterized in that: The clamping member (18) is provided with detachable mechanisms on both sides. The detachable mechanisms include mounting plates (20) fixedly connected to both sides of the clamping member (18). Each mounting plate (20) is provided with fixing bolts (21). Each mounting plate (20) is connected to the threaded block (19) and the slider (17) by fixing bolts (21).
5. The apparatus for testing the performance of recycled concrete preparation according to claim 1, characterized in that: The test chamber (2) is provided with a mating mechanism at the top. The mating mechanism includes a cylinder (6) fixedly installed at the top of the test chamber (2). The cylinder (6) incorporates servo control technology. The piston rod of the cylinder (6) extends into the interior of the test chamber (2) and is fixedly connected to an electromagnetic block (10). A pressure plate (11) is provided at the bottom of the electromagnetic block (10).
6. The apparatus for testing the performance of recycled concrete preparation according to claim 5, characterized in that: The mating mechanism also includes a fixing groove (13) opened inside the pressure plate (11), and an iron block (12) is embedded in the inner wall of the fixing groove (13).
7. The apparatus for testing the performance of recycled concrete preparation according to claim 1, characterized in that: The test chamber (2) has a dust collection trough inside and below the bidirectional lead screw (14). A dust collection drawer is slidably connected inside the dust collection trough. A sealed door is hinged to the outside of the test chamber (2).
8. The apparatus for testing the performance of recycled concrete preparation according to claim 1, characterized in that: A servo motor (4) is fixedly installed on the outside of the test chamber (2). The output shaft of the servo motor (4) extends into the interior of the mounting groove (15) and is fixedly connected to the bidirectional lead screw (14).