Solid waste-based cementitious material road performance testing equipment

Abstract

The utility model belongs to material performance detection technical field, concretely relates to a kind of solid waste base cementitious material road performance test equipment, including operation platform, mobile assembly is provided on the operation platform, the top of operation platform is fixedly connected with top plate, cylinder is fixedly installed on the top plate, detection mechanism is provided below the top plate, the detection mechanism includes mounting plate, the output end of mounting plate and cylinder is fixed, the upper side of mounting plate is fixedly connected with guide rod;Connecting plate, the upper side of connecting plate is fixedly connected with round bar.This solid waste base cementitious material road performance test equipment uses detection mechanism, cylinder drives rotating roller to exert sustained pressure on cementitious material, simulates static pressure, and cooperates with the use of mobile assembly, rotating roller can move on cementitious material, realizes dynamic pressure, solves the problem of traditional single static loading test result deviation.

Description

Technical Field

[0001] This utility model relates to the field of material performance testing technology, specifically to a road performance testing device for solid waste-based cementitious materials. Background Technology

[0002] Solid waste-based cementitious materials use industrial solid waste (such as slag, fly ash, and steel slag) as the main raw materials. They have the advantages of being low-carbon and environmentally friendly, and are widely used in road engineering such as highway base courses and subgrade filling. Their road performance (such as compressive strength, flexural strength, and durability) directly determines the stability and service life of the road structure. Therefore, accurate performance testing is a crucial step before engineering application.

[0003] Currently, in actual road use, materials need to withstand the combined effects of "repeated impact + continuous rolling" from vehicle loads. However, existing equipment mostly uses single static loading (such as applying only constant pressure in the compression test), which cannot simulate the performance changes under dynamic loads, resulting in a deviation between the test results and the actual road performance. In view of this, a road performance testing device for solid waste-based cementitious materials is proposed. Utility Model Content

[0004] The main objective of this invention is to provide a road performance testing device for solid waste-based cementitious materials, which can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention proposes a road performance testing device for solid waste-based cementitious materials, comprising an operating platform, a movable component on the operating platform, a top plate fixedly connected to the top of the operating platform, a cylinder fixedly mounted on the top plate, and a testing mechanism located below the top plate. The testing mechanism includes:

[0006] Mounting plate, the mounting plate is fixed to the output end of the cylinder, and a guide rod is fixedly connected to the upper side of the mounting plate;

[0007] A connecting plate, on the upper side of which a round rod is fixedly connected, the round rod passing through the mounting plate and slidably connected to the mounting plate, and a limit ring fixedly connected to the outer wall of the round rod;

[0008] A U-shaped frame is fixedly connected to the lower side of a connecting plate. A rotating roller is rotatably connected to the inner surface of the U-shaped frame. A pressure sensor is provided between the connecting plate and the U-shaped frame.

[0009] The auxiliary testing component is located below the top plate. It is driven by a cylinder to lower the mounting plate, which in turn drives the connecting plate, U-shaped frame and rotating roller to lower and contact the cementitious material. When the mounting plate continues to lower, the reset spring is compressed, the connecting plate is subjected to a reaction force, and the rotating roller applies pressure to the cementitious material. The pressure is detected by a pressure sensor.

[0010] Preferably, the guide rod passes through the top plate and is slidably connected to the top plate, and a return spring is sleeved on the outside of the round rod, with the two ends of the return spring abutting against the mounting plate and the connecting plate respectively.

[0011] Preferably, the auxiliary testing component includes a first synchronous wheel, which is fixed to the rotating roller via a connecting shaft. The first synchronous wheel and the second synchronous wheel are connected by a synchronous belt drive. The second synchronous wheel is rotatably connected to the bracket of the connecting plate, and a trapezoidal block is fixedly connected to the outer wall of the second synchronous wheel.

[0012] Preferably, an elastic telescopic rod is fixedly connected to the upper side of the mounting plate, the telescopic end of the elastic telescopic rod passes through the mounting plate and is slidably connected to the mounting plate, a trapezoidal block is fixedly connected to the outer wall of the elastic telescopic rod, and a pressure plate is fixedly connected to the bottom of the elastic telescopic rod.

[0013] Preferably, during the clockwise rotation of the second synchronous wheel, the first trapezoidal block squeezes the second trapezoidal block, causing the telescopic end of the elastic telescopic rod to contract, thereby separating the pressure plate from the connecting plate. After the first trapezoidal block separates from the second trapezoidal block, the pressure plate impacts the connecting plate under the reset action of the elastic telescopic rod.

[0014] Preferably, the moving component includes a lead screw, a motor, a threaded block, a connecting rod, and a support frame. The lead screw is fixed to the output shaft of the motor, the motor is fixed on the operating table, the threaded block is threadedly connected to the lead screw, the two ends of the connecting rod are fixed to the threaded block and the support frame respectively, and the support frame is fixed to the top plate.

[0015] Preferably, a guide rod is fixedly connected to the inner wall of the operating table.

[0016] This invention provides a road performance testing device for solid waste-based cementitious materials. It has the following beneficial effects:

[0017] (1) The solid waste-based cementitious material road performance testing equipment uses a testing mechanism to drive a cylinder to rotate a roller to apply continuous pressure to the cementitious material, simulating static pressure. In addition, with the use of a moving component, the rotating roller can move on the cementitious material to achieve dynamic pressure, thus solving the problem of deviation in traditional single static loading test results.

[0018] (2) The solid waste-based cementitious material road performance testing equipment uses auxiliary testing components. The rotating roller drives synchronous wheel one and synchronous wheel two to rotate. Trapezoidal block one periodically squeezes trapezoidal block two, so that the pressure plate impacts the connecting plate under the action of the elastic telescopic rod, forming an intermittent impact force to simulate vehicle impact. This testing method is closer to the actual road stress scenario and improves the accuracy of the test results. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the testing mechanism of this utility model;

[0023] Figure 4 This is a partial structural diagram of the testing mechanism of this utility model.

[0024] Explanation of icon numbers:

[0025] 1. Operating platform; 2. Moving assembly; 3. Top plate; 4. Cylinder; 5. Detection mechanism; 101. Guide rod; 21. Lead screw; 22. Motor; 23. Threaded block; 24. Connecting rod; 25. Support frame; 51. Mounting plate; 52. Guide rod; 53. Round rod; 54. Limit ring; 55. Connecting plate; 56. U-shaped frame; 57. Rotating roller; 58. Auxiliary testing assembly; 581. Synchronous pulley one; 582. Synchronous pulley two; 583. Trapezoidal block one; 584. Elastic telescopic rod; 585. Trapezoidal block two; 586. Pressure plate.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-4This utility model proposes a road performance testing device for solid waste-based cementitious materials, including an operating table 1, a moving component 2 on the operating table 1, a top plate 3 fixedly connected to the top of the operating table 1, a cylinder 4 fixedly installed on the top plate 3, and a testing mechanism 5 below the top plate 3.

[0029] In this embodiment of the invention, in order to test the strength of solid waste-based cementitious materials, the testing mechanism 5 specifically includes a mounting plate 51, a connecting plate 55, a U-shaped frame 56, and an auxiliary testing component 58. The mounting plate 51 is fixed to the output end of the cylinder 4. A guide rod 52 is fixedly connected to the upper side of the mounting plate 51. A round rod 53 is fixedly connected to the upper side of the connecting plate 55. The round rod 53 passes through the mounting plate 51 and is slidably connected to the mounting plate 51. A limit ring 54 is fixedly connected to the outer wall of the round rod 53. The U-shaped frame 56 is fixedly connected to the lower side of the connecting plate 55. The guide rod 52 passes through the top plate 3 and is slidably connected to the top plate 3. A reset ring is sleeved on the outside of the round rod 53. A spring is provided, with its two ends abutting against the mounting plate 51 and the connecting plate 55 respectively. A rotating roller 57 is rotatably connected to the inner surface of the U-shaped frame 56. A pressure sensor is provided between the connecting plate 55 and the U-shaped frame 56. An auxiliary test assembly 58 is located below the top plate 3. The mounting plate 51 is driven to descend by the cylinder 4. Under the action of the guide rod 52, the connecting plate 55, the U-shaped frame 56, and the rotating roller 57 descend stably and come into contact with the cementitious material. When the mounting plate 51 continues to descend, the return spring is compressed, and the connecting plate 55 is subjected to a reaction force, causing the rotating roller 57 to apply pressure to the cementitious material. The pressure is detected by the pressure sensor to simulate static pressure.

[0030] Furthermore, in order to dynamically test the strength of solid waste-based cementitious materials, the moving component 2 specifically includes a lead screw 21, a motor 22, a threaded block 23, a connecting rod 24, and a support frame 25. The lead screw 21 is fixed to the output shaft of the motor 22, and the motor 22 is fixed on the operating table 1. The threaded block 23 is threadedly connected to the lead screw 21. The two ends of the connecting rod 24 are fixed to the threaded block 23 and the support frame 25, respectively. The support frame 25 is fixed to the top plate 3. A guide rod 101 is fixedly connected to the inner wall of the operating table 1. A sliding block slides on the guide rod 101 and is fixed to another set of connecting rods 24. The rotation of the output shaft of the motor 22 drives the lead screw 21 to rotate, which in turn drives the threaded block 23 to move. At the same time, the use of the guide rod 101 and the sliding block makes the support frame 25 move stably, which in turn drives the top plate 3 and the detection mechanism 5 to move, so that the rotating roller 57 can move on the cementitious material to achieve dynamic pressure and solve the problem of deviation in traditional single static loading test results.

[0031] Furthermore, the auxiliary testing component 58 includes a first synchronous pulley 581, which is fixed to the rotating roller 57 via a connecting shaft. The first synchronous pulley 581 and a second synchronous pulley 582 are connected via a synchronous belt drive. The second synchronous pulley 582 is rotatably connected to the bracket of the connecting plate 55. A trapezoidal block 583 is fixedly connected to the outer wall of the second synchronous pulley 582. An elastic telescopic rod 584 is fixedly connected to the upper side of the mounting plate 51. The telescopic end of the elastic telescopic rod 584 passes through the mounting plate 51 and is slidably connected to it. A trapezoidal block 585 is fixedly connected to the outer wall, and a pressure plate 586 is fixedly connected to the bottom of the elastic telescopic rod 584. During the clockwise rotation of the synchronous wheel 582, the trapezoidal block 583 presses against the trapezoidal block 585, causing the telescopic end of the elastic telescopic rod 584 to contract. This causes the pressure plate 586 to separate from the connecting plate 55. After the trapezoidal block 583 separates from the trapezoidal block 585, under the reset action of the elastic telescopic rod 584, the pressure plate 586 impacts the connecting plate 55. As the rotating roller 57 moves on the cementitious material, it moves from left to right (see...). Figure 1 Then, the rotating roller 57 rotates clockwise, causing the synchronous pulley 581 to rotate. Under the transmission of the synchronous belt, the synchronous pulley 582 rotates. The trapezoidal block 583 periodically squeezes the trapezoidal block 585, causing the pressure plate 586 to impact the connecting plate 55 under the action of the elastic telescopic rod 584, forming an intermittent impact force to simulate vehicle impact. This detection method is closer to the actual road stress scenario and improves the accuracy of the test results.

[0032] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here.

[0033] In use, the solid waste-based cementitious material is first placed on the operating table 1. The mounting plate 51 is lowered by the cylinder 4. Under the action of the guide rod 52, the connecting plate 55, U-shaped frame 56, and rotating roller 57 descend stably and come into contact with the cementitious material. As the mounting plate 51 continues to descend, the return spring is compressed, and the connecting plate 55 is subjected to a reaction force, causing the rotating roller 57 to apply pressure to the cementitious material. The pressure is detected by a pressure sensor to simulate static pressure. At the same time, the output shaft of the motor 22 rotates, driving the lead screw 21 to rotate, which in turn drives the threaded block 23 to move. With the use of the guide rod 101 and the sliding block, the support frame 25 moves stably, which in turn drives the top plate 3 and the detection mechanism 5 to move, allowing the rotating roller 57 to move on the cementitious material to achieve dynamic pressure. During this process, the rotating roller 57 can only move from left to right when performing dynamic detection (see...). Figure 1When moving from right to left, the rotating roller 57 does not come into contact with the solid waste-based cementitious material. The rotating roller 57 then rotates clockwise, causing the synchronous wheel 581 to rotate. Under the transmission of the synchronous belt, the synchronous wheel 582 rotates. The trapezoidal block 583 periodically squeezes the trapezoidal block 585, causing the pressure plate 586 to impact the connecting plate 55 under the action of the elastic telescopic rod 584, forming an intermittent impact force to simulate a vehicle impact.

[0034] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A road performance testing device for solid waste-based cementitious materials, comprising an operating table (1), characterized in that: A movable component (2) is provided on the operating table (1), a top plate (3) is fixedly connected to the top of the operating table (1), a cylinder (4) is fixedly installed on the top plate (3), and a detection mechanism (5) is provided below the top plate (3). The detection mechanism (5) includes: Mounting plate (51), which is fixed to the output end of cylinder (4), and a guide rod (52) is fixedly connected to the upper side of mounting plate (51); A connecting plate (55) is fixedly connected to a round rod (53) on its upper side. The round rod (53) passes through the mounting plate (51) and is slidably connected to the mounting plate (51). A limit ring (54) is fixedly connected to the outer wall of the round rod (53). A U-shaped frame (56) is fixedly connected to the lower side of a connecting plate (55). A rotating roller (57) is rotatably connected to the inner surface of the U-shaped frame (56). A pressure sensor is provided between the connecting plate (55) and the U-shaped frame (56). and an auxiliary test component (58), which is disposed below the top plate (3).

2. The road performance testing equipment for solid waste-based cementitious materials according to claim 1, characterized in that: The guide rod (52) passes through the top plate (3) and is slidably connected to the top plate (3). A return spring is sleeved on the outside of the round rod (53), and the two ends of the return spring abut against the mounting plate (51) and the connecting plate (55) respectively.

3. The road performance testing equipment for solid waste-based cementitious materials according to claim 1, characterized in that: The auxiliary testing component (58) includes a first synchronous pulley (581), which is fixed to the rotating roller (57) via a connecting shaft. The first synchronous pulley (581) and the second synchronous pulley (582) are connected by a synchronous belt drive. The second synchronous pulley (582) is rotatably connected to the bracket of the connecting plate (55). A trapezoidal block (583) is fixedly connected to the outer wall of the second synchronous pulley (582).

4. The road performance testing equipment for solid waste-based cementitious materials according to claim 3, characterized in that: An elastic telescopic rod (584) is fixedly connected to the upper side of the mounting plate (51). The telescopic end of the elastic telescopic rod (584) passes through the mounting plate (51) and is slidably connected to the mounting plate (51). A trapezoidal block (585) is fixedly connected to the outer wall of the elastic telescopic rod (584). A pressure plate (586) is fixedly connected to the bottom of the elastic telescopic rod (584).

5. The road performance testing equipment for solid waste-based cementitious materials according to claim 4, characterized in that: During the clockwise rotation of the second synchronous wheel (582), the first trapezoidal block (583) squeezes the second trapezoidal block (585), causing the telescopic end of the elastic telescopic rod (584) to contract, and then the pressure plate (586) separates from the connecting plate (55). After the first trapezoidal block (583) separates from the second trapezoidal block (585), the pressure plate (586) impacts the connecting plate (55) under the reset action of the elastic telescopic rod (584).

6. The road performance testing equipment for solid waste-based cementitious materials according to claim 1, characterized in that: The moving component (2) includes a lead screw (21), a motor (22), a threaded block (23), a connecting rod (24), and a support frame (25). The lead screw (21) is fixed to the output shaft of the motor (22), the motor (22) is fixed on the operating table (1), the threaded block (23) is threadedly connected to the lead screw (21), the two ends of the connecting rod (24) are fixed to the threaded block (23) and the support frame (25) respectively, and the support frame (25) is fixed to the top plate (3).

7. The road performance testing equipment for solid waste-based cementitious materials according to claim 1, characterized in that: A guide rod (101) is fixedly connected to the inner wall of the operating table (1).

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