Rock and aggregate firmness test box

Abstract

The utility model relates to the field of building and highway engineering technology detection, in particular to a rock and aggregate firmness test box which comprises a test box body and a control system for controlling the test process, a first cavity and a second cavity are longitudinally arranged in the test box body, a drying device is arranged on the upper portion in the first cavity, and a drying device is arranged on the lower portion in the second cavity. A water tank and a water inlet device communicated with the water tank are arranged at the lower part of the first cavity, an air cooling device is arranged at the upper part in the second cavity, a solution tank is arranged at the lower part in the second cavity, a transversely sliding test assembly is arranged at the upper parts of the first cavity and the second cavity, and when the test assembly slides to the first cavity, the lifting basket corresponds to the water tank; and when the test assembly slides to the second cavity, the lifting basket corresponds to the solution tank. According to the utility model, the temperature in the test box body is monitored and adjusted in real time by the control system, so that the environmental requirements of the test are met, the test efficiency is improved, and the possibility of manual misoperation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of building and highway engineering technical testing, specifically a rock and aggregate robustness test chamber. Background Technology

[0002] Rock and aggregate, also known as aggregate, are divided into coarse aggregate and fine aggregate. They are one of the main components of concrete. A large amount of rock and aggregate is required in highway engineering. Therefore, before highway construction, the rock and aggregate strength test chamber is needed to test the strength of the rock and aggregate to see if it meets the usage requirements. The rock and aggregate strength tester complies with the requirements of JTG E42-2005 Highway Engineering Rock and Aggregate Test Procedure. It is used to determine the mass loss of rock and aggregate under the action of immersion and drying cycles in saturated sodium sulfate solution or saturated magnesium sulfate solution to indirectly evaluate the strength of rock and aggregate.

[0003] Existing rock and aggregate robustness test chambers are functionally limited. Due to space and structural constraints, they cannot simultaneously test multiple types of rocks and aggregates, and cannot provide sufficient testing space and load-bearing capacity. Therefore, the structure and design of the test chamber need further optimization and improvement to adapt to the testing requirements of various rocks and aggregates. During testing, materials must be soaked in a designated solution and then manually removed into the test chamber. This involves multiple tests, resulting in frequent handling, which is time-consuming, labor-intensive, and increases operational complexity and time costs. Furthermore, the test results are affected by environmental and temperature changes. Therefore, to solve these problems and ensure the accuracy of test results, a new test structure needs to be designed. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a rock and aggregate robustness test chamber, which solves the issues raised in the background section.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a rock and aggregate robustness test chamber, including a test chamber body and a control system for controlling the test process. The test chamber body is longitudinally provided with a first cavity and a second cavity. The upper part of the first cavity is provided with a drying device, and the lower part is provided with a water tank and a water inlet device communicating with the water tank. The upper part of the second cavity is provided with a wind-cooling device, and the lower part is provided with a solution tank. A partition is provided between the first cavity and the second cavity. The upper part of the partition is provided with a through-hole, and the inner edge of the through-hole is provided with a sealing layer. A test assembly that slides laterally is provided on the upper part of the first cavity and the second cavity. The test assembly includes a left vertical plate and a right vertical plate arranged opposite to each other. A liftable lifting basket assembly is provided between the left vertical plate and the right vertical plate. When the test assembly slides to the first cavity, the lifting basket corresponds to the water tank; when the test assembly slides to the second cavity, the lifting basket corresponds to the solution tank.

[0006] As an optimization, a telescopic cylinder push-pull device is provided between the left or right upright plate and the inner wall of the test chamber body, and guide rods are provided at the four corners of the left and right upright plates, which are fixed between the left and right inner walls of the test chamber body.

[0007] As an optimization, the lifting basket assembly includes a lifting component and several baskets connected to the lifting component. The lifting component includes a rotating rod and a lifting plate disposed between the left and right upright plates. A steel wire rope is provided between the rotating rod and the lifting plate, and a weighing sensor is provided between the lifting plate and the basket.

[0008] As an optimization, the rotating rod includes a rod body and a motor that drives the rod body to rotate.

[0009] As an optimization, the left and right upright plates are each provided with a slide rail on their opposite sides, and the lifting plate is provided with a slider corresponding to the slide rail.

[0010] As an optimization, the lifting plate is provided with several hooks for lifting the basket.

[0011] As an optimization, the control system includes a controller, a display screen, and a keyboard.

[0012] As an optimization, the horizontal spacing within the first cavity is the same as the horizontal spacing within the second cavity.

[0013] As an optimization, the distance between the left and right upright plates is equal to the distance between the left inner wall of the first cavity and the right side of the opening.

[0014] As an optimization, a connecting rod is provided between the left and right upright plates.

[0015] The beneficial effects of this utility model are as follows: The rock and aggregate robustness test chamber provided by this utility model is equipped with a control system to automate and optimize the test process. Through parameter settings, the control system can monitor and adjust the temperature inside the test chamber in real time to meet the environmental requirements of the test. In addition, the weight of the rock and aggregate is known through the weighing sensor, which improves the accuracy and efficiency of the test and reduces the possibility of human error. By setting up a first chamber and a second chamber, the rock and aggregate cleaning and solution soaking are integrated into one device, saving solution replacement time and speeding up the test efficiency. The test components are set up with sliding test components. Under the control of the control system, the test components can be tested in the water tank and the solution tank respectively. The setting of the sealing layer on the opening ensures the independence of the first chamber and the second chamber and ensures that the internal environment meets the test standards. Attached Figure Description

[0016] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0017] Fig. 2 This is a schematic diagram of the structure of the test component of this utility model.

[0018] The components include: 1. Test chamber body, 2. First cavity, 3. Second cavity, 4. Test assembly, 5. Left upright plate, 6. Right upright plate, 7. Suspended basket, 8. Rod, 9. Lifting plate, 10. Wire rope, 11. Hook, 12. Display screen, 13. Keyboard, 14. Connecting rod. Detailed Implementation

[0019] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, 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 application pertains.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] For ease of description, the words "up," "down," "left," and "right" appearing in this utility model only indicate that they are consistent with the up, down, left, and right directions of the accompanying drawings themselves, and do not limit the structure. They are merely for the purpose of facilitating the description of this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] like Figs. 1-2As shown, the rock and aggregate robustness test chamber includes a test chamber body 1 and a control system for controlling the test process. The control system includes a controller, a display screen 12, and a keyboard 13. By setting various parameters within the controller, the operation is automated. The test chamber body 1 has a first chamber 2 and a second chamber 3 arranged longitudinally. The first chamber 2 has a drying device at the upper part and a water tank and a water inlet device connected to the water tank at the lower part. The water inlet device includes a water pump and a water pipe for injecting and changing water in the water tank, thus achieving the cleaning and drying of rocks and aggregates within the first chamber 2. The second chamber 3 has an air-cooling device at the upper part and a solution tank at the lower part. The air-cooling device includes a fan. The cooling and soaking test of rocks and aggregates is carried out in the second cavity 3. A partition is provided between the first cavity 2 and the second cavity 3. The upper part of the partition has an opening with a sealing layer on the inner edge of the opening. A test assembly 4 that slides laterally is provided on the upper part of the first cavity 2 and the second cavity 3. The test assembly 4 includes a left vertical plate 5 and a right vertical plate 6 arranged opposite each other. A lifting basket assembly 7 is provided between the left vertical plate 5 and the right vertical plate 6. When the test assembly 4 slides through the opening to the first cavity 2, the lifting basket 7 corresponds to the water tank; when the test assembly 4 slides through the opening to the second cavity 3, the lifting basket 7 corresponds to the solution tank. The sealing layer on the inner edge of the opening matches the side of the test assembly 4, so that the first cavity 2 and the second cavity 3 are sealed during the test. A connecting rod 14 is provided between the left vertical plate 5 and the right vertical plate 6.

[0023] To enable the lateral sliding of the test component 4, a telescopic cylinder push-pull device is provided between the outer wall of the left upright plate 5 and the inner wall of the test chamber body 1, or a telescopic cylinder push-pull device is provided between the outer wall of the right upright plate 6 and the inner wall of the test chamber body 1. Both methods can enable the lateral sliding of the test component 4. To facilitate the stability of the movement of the test component 4, guide rods are provided at the four corners of the left upright plate 5 and the right upright plate 6, which are fixed between the left inner wall and the right inner wall of the test chamber body 1.

[0024] To achieve the vertical movement of the lifting basket assembly, when the test component 4 slides to the first cavity 2, the lifting basket assembly is placed into the water tank inside the first cavity 2; or, when the test component 4 slides to the second cavity 3, the lifting basket assembly is placed into the solution tank inside the second cavity 3. The lifting basket assembly includes a lifting component and several baskets 7 connected to the lifting component. The lifting component includes a rotating rod and a lifting plate 9 disposed between the left upright plate 5 and the right upright plate 6. The rotating rod includes a rod body 8 and a motor that drives the rod body 8 to rotate. A steel wire rope 10 is provided between the rotating rod and the lifting plate 9. A weighing sensor is provided between the lifting plate 9 and the basket 7. Several hooks 11 for lifting the basket 7 are provided under the lifting plate 9. The weighing sensor is disposed between the hooks 11 and the lifting plate 9. In order to maintain the stability of the lifting plate 9, a slide rail is provided on the opposite side of the left upright plate 5 and the right upright plate 6. A slider corresponding to the slide rail is provided on the lifting plate 9.

[0025] The horizontal spacing within the first cavity 2 is the same as the horizontal spacing within the second cavity 3; the distance between the left upright plate 5 and the right upright plate 6 is equal to the distance between the left inner wall of the first cavity 2 and the right side of the opening; when the test component 4 slides to the first cavity 2, the right upright plate 6 of the test component 4 is just located within the opening; when the test component 4 slides to the second cavity 3, the left upright plate 5 of the test component 4 is just located within the opening.

[0026] Working principle: The rock and aggregate robustness test chamber provided by this utility model allows for the setting of appropriate test parameters at the start of the test via the display screen 12 and keyboard 13. Water is injected into the water tank by a water pump, and the solution tank is filled with the specified solution.

[0027] Place the rocks and aggregates into the basket 7, move the test assembly 4 to the first chamber 2, and use the lifting device to place the basket 7 into the water tank. After cleaning the rocks and aggregates, the lifting device rises and removes the basket 7 containing the rocks and aggregates from the water tank. Start the drying device to dry the rocks and aggregates.

[0028] After the rocks and aggregates are dried to the appropriate parameters, the test assembly 4 is moved to the second chamber 3. At the same time, the air cooling device is turned on to keep the temperature of the solution between 20℃ and 50℃. After the temperature is set, the basket 7 is placed into the solution tank and raised and lowered 25 times by the lifting device to remove air bubbles in the rocks and aggregates. Then it is placed in the solution tank.

[0029] After soaking for 20 hours, the basket 7 is lifted from the solution tank, the test component 4 is moved to the first chamber 2, the drying device is started, the temperature is raised to 105℃±5℃, and the baking is carried out for 4 hours. This completes the first test cycle. After the rock and aggregate cool down to 20℃-25℃, the second cycle begins.

[0030] Starting from the second cycle, the soaking and baking time is 4 hours each, for a total of 5 cycles.

[0031] After the final cycle is completed, the rock and aggregate are placed in a water tank at 25℃-30℃ to wash off the solution, and then dried at 105℃±5℃ to constant weight. After being taken out and cooled to room temperature, they are sieved and weighed.

[0032] The above-described specific embodiments are merely specific examples of this utility model. The patent protection scope of this utility model includes, but is not limited to, the product form and style of the above-described specific embodiments. Any appropriate changes or modifications made by a person skilled in the art that conform to the claims of this utility model should fall within the patent protection scope of this utility model.

Claims

1. A rock and aggregate soundness test chamber, characterized in that: The test chamber includes a test chamber body and a control system for controlling the test process. The test chamber body has a first chamber and a second chamber arranged longitudinally. The first chamber has a drying device in its upper part and a water tank and a water inlet device connected to the water tank in its lower part. The second chamber has an air-cooling device in its upper part and a solution tank in its lower part. A partition is provided between the first and second chambers, with an opening at its upper part and a sealing layer on the inner edge of the opening. A laterally sliding test assembly is provided above the first and second chambers. The test assembly includes a left vertical plate and a right vertical plate arranged opposite each other. A liftable lifting basket assembly is provided between the left and right vertical plates. When the test assembly slides to the first chamber, the lifting basket corresponds to the water tank; when the test assembly slides to the second chamber, the lifting basket corresponds to the solution tank.

2. The rock and aggregate robustness test chamber according to claim 1, characterized in that: A telescopic cylinder push-pull device is provided between the left or right upright plate and the inner wall of the test chamber body. Guide rods are provided at the four corners of the left and right upright plates and fixed between the left and right inner walls of the test chamber body.

3. The rock and aggregate robustness test chamber according to claim 1, characterized in that: The lifting basket assembly includes a lifting component and several baskets connected to the lifting component. The lifting component includes a rotating rod and a lifting plate disposed between the left and right upright plates. A wire rope is provided between the rotating rod and the lifting plate, and a weighing sensor is provided between the lifting plate and the basket.

4. The rock and aggregate robustness test chamber according to claim 3, characterized in that: The rotating rod includes a rod body and a motor that drives the rod body to rotate.

5. The rock and aggregate strength test chamber according to claim 4, characterized in that: The left and right upright plates are each provided with a slide rail on their opposite sides, and the lifting plate is provided with a slider corresponding to the slide rail.

6. The rock and aggregate robustness test chamber according to claim 5, characterized in that: The lifting platform is equipped with several hooks for suspending the basket.

7. The rock and aggregate robustness test chamber according to claim 1, characterized in that: The control system includes a controller, a display screen, and a keyboard.

8. The rock and aggregate soundness test chamber according to claim 7, characterized in that: The horizontal spacing within the first cavity is the same as the horizontal spacing within the second cavity.

9. The rock and aggregate soundness test chamber according to claim 8, characterized in that: The distance between the left and right upright plates is equal to the distance between the left inner wall of the first cavity and the right side of the opening.

10. The rock and aggregate robustness test chamber according to claim 9, characterized in that: A connecting rod is provided between the left and right upright plates.

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