Asphalt mixture Marshall stability test heat preservation device

Abstract

The utility model discloses a thermal insulation device for a Marshall stability test of an asphalt mixture, and relates to the technical field of road test detection. Comprising a main body mechanism, a test mechanism is installed at the bottom end of the inner side of the main body mechanism, a constant-temperature mechanism is installed at one end of the test mechanism, and a driving mechanism is installed above the constant-temperature mechanism; the main body mechanism is used for providing an experimental environment, the test mechanism is used for performing a Marshall stability test on the asphalt mixture, the constant temperature mechanism is used for adjusting the temperature of the environment in the main body mechanism, and the driving mechanism is used for assisting the test mechanism to transport test substances. According to the device, through cooperative setting of the main body mechanism, the testing mechanism, the constant temperature mechanism and the driving mechanism, the temperature in the heat preservation box can be controlled at a proper temperature, the asphalt mixture can be automatically detected, the complexity of manual operation is avoided, the device does not need to be frequently disassembled and heated, and the working efficiency is improved. And the working intensity of workers is reduced, and the test efficiency can be remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road test detection, in particular to a Marshall stability test insulation device for asphalt mixture. Background Art

[0002] The Asphalt Mixture Marshall Stability Test Insulation Device is a device specifically designed to increase and maintain the temperature control of asphalt mixture during the Marshall Stability Test. This device plays an important role in road engineering because it can help ensure the accuracy and reliability of test results. The use of this device can effectively shorten the time required for the mixture to reach the design temperature, improve work efficiency, and reduce test errors caused by temperature changes.

[0003] For example, the patent publication number CN206281707U is an asphalt mixture Marshall stability test insulation device, which is equipped with a heating pipe to heat the gas inside. When the temperature reaches a certain requirement, the temperature sensor can trigger the power supply to suspend power supply. When the temperature drops to a certain temperature value, the temperature sensor triggers the power supply to continue to supply power and heat the heating pipe. The insulation device is equipped with an insulation door, which can be opened and closed for the placement and removal of asphalt mixture specimens. At the same time, a thermometer is installed on the door to facilitate the inspection personnel to observe the temperature changes inside the insulation device.

[0004] When conducting the Marshall stability test of asphalt mixture, it is necessary to ensure that the test environment is at a suitable temperature, which is usually controlled at around 60°, so that the test data is more accurate. Generally, during the test, the upper and lower pressure heads of the test device need to be placed in warm water and heated to 60°, and then taken out and installed on the test device for the Marshall stability test of asphalt mixture. After a set of tests, the temperature of the upper and lower pressure heads will drop significantly, so the above process needs to be repeated again, and the work efficiency is extremely low; for this reason, we propose a new asphalt mixture Marshall stability test insulation device. Utility Model Content

[0005] The utility model aims to provide a Marshall stability test insulation device for asphalt mixture to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an asphalt mixture Marshall stability test insulation device, comprising a main body mechanism,

[0007] A test mechanism is installed at the bottom inner side of the main body mechanism, a constant temperature mechanism is installed at one end of the test mechanism, and a driving mechanism is installed above the constant temperature mechanism;

[0008] The main body mechanism is used to provide an experimental environment, the test mechanism is used to perform a Marshall stability test on asphalt mixture, the constant temperature mechanism is used to adjust the temperature of the environment within the main body mechanism, and the driving mechanism is used to assist the test mechanism to transport the test material.

[0009] Furthermore, the main body includes:

[0010] An incubator is installed at the bottom of the test mechanism, wherein a control power supply is installed on one side of the top of the incubator, universal wheels are installed around the bottom of the incubator, a door frame is installed at one end of the incubator, and a handle is installed on the outside of the door frame.

[0011] Furthermore, the testing organization includes:

[0012] A workbench is installed at the bottom inner end of the incubator, a CNC machine is installed on one side of the top of the workbench, two sets of fixing rods are installed on the other side of the top of the workbench, rubber sleeves are installed on the outer walls of the fixing rods, connecting columns are installed on the tops of the fixing rods, and a lifting platform is installed at one end of the fixing rods.

[0013] Furthermore, a lower pressure plate is installed at the top of the lifting platform, an upper pressure plate is installed above the lower pressure plate, the upper pressure plate and the lower pressure plate are connected by a sliding rod, a limit block is installed at the top of the sliding rod, a buckle is installed at one end of the upper pressure plate, a sensor is installed in the buckle, the sensor and the CNC machine are connected by a transmission line, and a cylinder is connected to the top of the upper pressure plate, and the cylinder is installed in the middle of the bottom end of the connecting column.

[0014] Furthermore, the constant temperature mechanism comprises:

[0015] A heating plate is installed on one side of the bottom end of the inner side of the insulated box, a water tank is installed above the heating plate, a water temperature sensor is installed in the water tank, one end of the water temperature sensor is connected to a transmission line, the other end of the transmission line is connected to a terminal, one end of the heating plate is connected to a wire, the other end of the wire is connected to a control power supply, an air conditioner 306 is installed on the top end of the inner side of the insulated box, the air conditioner 306 is connected to the control power supply through a wire, a hanging plate is installed in the middle of the top end of the inner side of the insulated box, a temperature sensor is installed in the hanging plate, one end of the temperature sensor is connected to the transmission line, and a water thermometer is installed at the other end of the transmission line.

[0016] Furthermore, the driving mechanism comprises:

[0017] A telescopic rod is installed on the top inner side of the incubator, a T-shaped slide groove is provided on the top inner side of the incubator, the telescopic rod is installed in the slide groove, a Y-shaped mounting plate is installed on one end of the telescopic rod, a connecting rod is symmetrically installed on the bottom end of the Y-shaped mounting plate, a gear is installed on the outer wall of the connecting rod, a round clamp is installed on one end of the gear, a column gear is installed on one end of the Y-shaped mounting plate, a cylinder is connected to the top of the column gear, the Y-shaped mounting plate is installed on the telescopic rod through fixing bolts, a push rod is installed on one end of the inner side of the incubator, and a baffle is installed on the top of the push rod.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The asphalt mixture Marshall stability test insulation device can heat the water tank and the insulation box by setting the heating plate and the air conditioner 306, so as to increase the temperature in the working environment. The thermometer and the terminal can detect the temperature in the water tank and the insulation box, and can control the heating plate and the air conditioner 306 to work respectively by controlling the power supply. The device no longer needs to frequently disassemble, heat and install the upper and lower pressing plates, which can significantly improve the test efficiency.

[0020] At the same time, the height of the circular clamp can be adjusted through the telescopic rod setting, and the starting cylinder can drive the column gear to move up and down, which can drive the circular clamp on the gear to open and tighten. During the operation of the circular clamp, the asphalt mixture in the water tank can be clamped and pushed to the upper and lower pressure plates through the pushing rod, reducing the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an isometric side cross-sectional schematic diagram of the utility model;

[0022] Figure 2 It is an isometric schematic diagram of the main mechanism of the utility model;

[0023] Figure 3 It is an isometric schematic diagram of the test mechanism of the utility model;

[0024] Figure 4 It is an isometric schematic diagram of the thermostatic mechanism of the utility model;

[0025] Figure 5 It is an isometric schematic diagram of the drive mechanism of the utility model;

[0026] Figure 6 It is an isometric side cross-sectional schematic diagram of the driving mechanism of the utility model.

[0027] In the figure: 1. Main body; 2. Test mechanism; 3. Constant temperature mechanism; 4. Driving mechanism; 101. Door frame; 102. Handle; 103. Insulation box; 104. Control power supply; 105. Universal wheel; 201. Workbench; 202. CNC machine; 203. Transmission line; 204. Buckle; 205. Sensor; 206. Sliding rod; 207. Cylinder; 208. Connecting column; 209. Limit block; 210. Upper pressure plate; 211. Lower pressure plate; 212. Lifting platform; 213. Rubber sleeve; 214, fixing rod; 301, heating plate; 302, water temperature sensor; 304, water thermometer; 305, lifting plate; 306, air conditioner 306; 308, temperature sensor; 309, wire; 310, terminal; 311, water tank; 401, round clip; 402, connecting rod; 403, column gear; 404, slide; 405, telescopic rod; 406, Y-shaped mounting plate; 407, fixing bolt; 408, gear; 409, push rod; 410, baffle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the process of road construction, insulation equipment is needed. The insulation device provided by the utility model is specially used for the insulation work of the Marshall stability test of asphalt mixture. In the process of using this device for insulation work, it is necessary to understand the test standards and equipment requirements in advance, ensure that all equipment is in good condition, and select a flat, level, and barrier-free area as the test site. According to the standard requirements, ensure that the insulation device can accurately control the temperature of the asphalt mixture to meet the standard requirements. Provide sufficient technical training for the technicians involved in the test so that they understand how to operate the equipment and conduct the test safely and effectively, control road traffic during the test, ensure the safety of the test, and thus ensure the normal operation of the equipment.

[0030] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: an asphalt mixture Marshall stability test insulation device, comprising a main body 1,

[0031] A test mechanism 2 is installed at the bottom inner side of the main mechanism 1, a constant temperature mechanism 3 is installed at one end of the test mechanism 2, and a driving mechanism 4 is installed above the constant temperature mechanism 3;

[0032] The main mechanism 1 is used to provide an experimental environment, the test mechanism 2 is used to perform a Marshall stability test on asphalt mixture, the constant temperature mechanism 3 is used to adjust the temperature of the environment inside the main mechanism 1, and the driving mechanism 4 is used to assist the test mechanism 2 in transporting the test material.

[0033] The main body 1 includes:

[0034] An insulated box 103 is installed at the bottom of the test mechanism 2. A control power supply 104 is installed on one side of the top of the insulated box 103. Universal wheels 105 are installed around the bottom of the insulated box 103. A door frame 101 is installed at one end of the insulated box 103. A handle 102 is installed on the outside of the door frame 101.

[0035] like Figure 2 As shown, it should be noted that the incubator 103 can be easily moved by the universal wheels 105, the control power supply 104 at the top of the incubator 103 is used to control the heating plate 301 and the air conditioner 306 to work, and the terminal 310 and the water thermometer 304 are installed on the door frame 101. By pulling the handle 102, the door frame 101 can be opened to clean and disassemble the incubator 103.

[0036] Test organization 2 includes:

[0037] A workbench 201 is installed at the bottom inner end of the heat preservation box 103, a CNC machine 202 is installed on one side of the top of the workbench 201, two sets of fixed rods 214 are installed on the other side of the top of the workbench 201, rubber sleeves 213 are installed on the outer walls of the fixed rods 214, connecting columns 208 are installed on the top of the fixed rods 214, and a lifting platform 212 is installed on one end of the fixed rods 214. A lower pressure plate 211 is installed at the top of the lifting platform 212, and an upper pressure plate 210 is installed above the lower pressure plate 211. The upper pressure plate 210 and the lower pressure plate 211 are connected by a sliding rod 206, and a limiting block 209 is installed on the top of the sliding rod 206. A buckle 204 is installed at one end of the upper pressure plate 210, and a sensor 205 is installed in the buckle 204. The sensor 205 and the CNC machine 202 are connected through a transmission line 203. A cylinder 207 is connected to the top of the upper pressure plate 210, and the cylinder 207 is installed in the middle of the bottom end of the connecting column 208.

[0038] like Figure 3As shown, it should be noted that after the asphalt mixture is placed in the upper pressure plate 210 and the lower pressure plate 211 by pushing the rod 409, the CNC machine 202 is started through the terminal 310 to make the lifting platform 212 drive the lower pressure plate 211 to rise through the sliding rod 206, and the limit block 209 is used to prevent the sliding rod 206 from detaching from the upper pressure plate 210 during the descent of the lower pressure plate 211. After the upper pressure plate 210 and the lower pressure plate 211 fix the asphalt mixture, the sensor 205 will send the obtained data to the CNC machine 202 through the transmission line 203, and the data on the CNC machine 202 will be transmitted to the terminal 310. After the experiment is over, the upper pressure plate 210 is driven to rise by starting the cylinder 207, and the lifting platform 212 drives the lower pressure plate 211 to descend, so that the asphalt mixture can be laid down for another test.

[0039] The constant temperature mechanism 3 comprises:

[0040] A heating plate 301 is installed on one side of the bottom end of the inner side of the insulated box 103, a water tank 311 is installed above the heating plate 301, a water temperature sensor 302 is installed in the water tank 311, one end of the water temperature sensor 302 is connected to the transmission line 203, and the other end of the transmission line 203 is connected to the terminal 310, one end of the heating plate 301 is connected to the wire 309, and the other end of the wire 309 is connected to the control power supply 104, an air conditioner 306 is installed on the top end of the inner side of the insulated box 103, and the air conditioner 306 is connected to the control power supply 104 through the wire 309, a hanging plate 305 is installed in the middle of the top end of the inner side of the insulated box 103, a temperature sensor 308 is installed in the hanging plate 305, one end of the temperature sensor 308 is connected to the transmission line 203, and the other end of the transmission line 203 is installed with a water thermometer 304.

[0041] like Figure 4 As shown, it should be noted that the air conditioner 306 and the heating plate 301 are controlled by the control power supply 104 through the wire 309 to work. When the temperature in the water tank 311 rises, the water temperature sensor 302 in the water tank 311 is displayed on the terminal 310 through the transmission line 203. When the temperature in the water tank 311 reaches 60°C, the control power supply 104 turns off the heating plate 301. After the air conditioner 306 works, the temperature in the insulation box 103 is transmitted to the water thermometer 304 through the temperature sensor 308. When the temperature in the insulation box 103 reaches 60°C, the control power supply 104 turns off the air conditioner 306, so that the entire working environment is controlled at 60°C. The hanging plate 305 is used to install the temperature sensor 308.

[0042] The driving mechanism 4 comprises:

[0043] A telescopic rod 405 is installed on the top inner side of the insulated box 103, a T-shaped slide groove 404 is provided on the top inner side of the insulated box 103, the telescopic rod 405 is installed in the slide groove 404, a Y-shaped mounting plate 406 is installed on one end of the telescopic rod 405, a connecting rod 402 is symmetrically installed on the bottom end of the Y-shaped mounting plate 406, a gear 408 is installed on the outer wall of the connecting rod 402, a round clamp 401 is installed on one end of the gear 408, a column gear 403 is installed on one end of the Y-shaped mounting plate 406, a cylinder 207 is connected to the top of the column gear 403, the Y-shaped mounting plate 406 is installed on the telescopic rod 405 by a fixing bolt 407, a push rod 409 is installed on one end of the inner side of the insulated box 103, and a baffle 410 is installed on the top of the push rod 409.

[0044] like Figure 5 As shown, it should be noted that the height of the Y-shaped mounting plate 406 can be adjusted by the telescopic rod 405. When adjusted to a suitable position, the cylinder 207 is used to drive the column gear 403 to move on the Y-shaped mounting plate 406. The column gear 403 is meshed and connected with the gear 408. The column gear 403 drives the gear 408 to rotate during the movement. The gear 408 can control the opening and closing of the circular clamp 401 during the rotation. After the asphalt mixture is clamped by the circular clamp 401, the telescopic rod 405 is moved in the slide groove 404 to move the telescopic rod 405 to the front of the center of the upper pressure plate 210 and the lower pressure plate 211. Under the action of the push rod 409, the baffle 410 can embed the asphalt mixture between the upper pressure plate 210 and the lower pressure plate 211.

[0045] In summary, the asphalt mixture Marshall stability test insulation device can control the temperature in the insulation box 103 at a suitable temperature through the coordination between the main mechanism 1, the test mechanism 2, the constant temperature mechanism 3 and the driving mechanism 4, and can automatically perform the detection of the asphalt mixture, avoiding the tediousness of manual operation. The device no longer requires frequent disassembly and heating, reduces the workload of the staff, and can significantly improve the test efficiency.

[0046] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. An asphalt mixture Marshall stability test insulation device, comprising a main body (1), characterized in that: A test mechanism (2) is installed at the bottom inner side of the main body mechanism (1), a constant temperature mechanism (3) is installed at one end of the test mechanism (2), and a driving mechanism (4) is installed above the constant temperature mechanism (3); The main body mechanism (1) is used to provide an experimental environment, the test mechanism (2) is used to perform a Marshall stability test on an asphalt mixture, the constant temperature mechanism (3) is used to adjust the temperature of the environment inside the main body mechanism (1), and the driving mechanism (4) is used to assist the test mechanism (2) in transporting test materials.

2. The asphalt mixture Marshall stability test insulation device according to claim 1, characterized in that: The main body (1) comprises: An insulated box (103) is installed at the bottom of the test mechanism (2), a control power supply (104) is installed on one side of the top of the insulated box (103), universal wheels (105) are installed around the bottom of the insulated box (103), a door frame (101) is installed at one end of the insulated box (103), and a handle (102) is installed on the outside of the door frame (101).

3. The asphalt mixture Marshall stability test insulation device according to claim 2, characterized in that: The test mechanism (2) comprises: A workbench (201) is installed at the bottom inner side of the heat preservation box (103), a numerical control machine (202) is installed on one side of the top of the workbench (201), two groups of fixing rods (214) are installed on the other side of the top of the workbench (201), rubber sleeves (213) are installed on the outer walls of the fixing rods (214), a connecting column (208) is installed on the top of the fixing rods (214), and a lifting platform (212) is installed on one end of the fixing rods (214).

4. The asphalt mixture Marshall stability test insulation device according to claim 3, characterized in that: A lower pressing plate (211) is installed at the top of the lifting platform (212), an upper pressing plate (210) is installed above the lower pressing plate (211), the upper pressing plate (210) and the lower pressing plate (211) are connected via a sliding rod (206), a limiting block (209) is installed at the top of the sliding rod (206), a buckle (204) is installed at one end of the upper pressing plate (210), a sensor (205) is installed in the buckle (204), the sensor (205) and the numerical control machine (202) are connected via a transmission line (203), and a cylinder (207) is connected to the top of the upper pressing plate (210), and the cylinder (207) is installed in the middle of the bottom end of the connecting column (208).

5. The asphalt mixture Marshall stability test insulation device according to claim 1, characterized in that: The constant temperature mechanism (3) comprises: A heating plate (301) is installed on one side of the bottom end of the inner side of the heat preservation box (103), a water tank (311) is installed above the heating plate (301), a water temperature sensor (302) is installed in the water tank (311), one end of the water temperature sensor (302) is connected to a transmission line (203), the other end of the transmission line (203) is connected to a terminal (310), one end of the heating plate (301) is connected to a wire (309), the other end of the wire (309) is connected to a control power supply (1 04), an air conditioner 306 (306) is installed at the top inner side of the insulated box (103), the air conditioner 306 (306) is connected to the control power supply (104) through a wire (309), a hanging plate (305) is installed at the middle of the top inner side of the insulated box (103), a temperature sensor (308) is installed in the hanging plate (305), one end of the temperature sensor (308) is connected to the transmission line (203), and the other end of the transmission line (203) is installed with a water temperature meter (304).

6. The asphalt mixture Marshall stability test insulation device according to claim 1, characterized in that: The driving mechanism (4) comprises: A telescopic rod (405) is installed on the top inner side of the heat preservation box (103), a T-shaped slide groove (404) is arranged on the top inner side of the heat preservation box (103), the telescopic rod (405) is installed in the slide groove (404), a Y-shaped mounting plate (406) is installed on one end of the telescopic rod (405), a connecting rod (402) is symmetrically installed on the bottom end of the Y-shaped mounting plate (406), and a gear (408) is installed on the outer wall of the connecting rod (402). A circular clip (401) is installed at one end of the gear (408), a column gear (403) is installed at one end of the Y-shaped mounting plate (406), a cylinder (207) is connected to the top of the column gear (403), the Y-shaped mounting plate (406) is installed on the telescopic rod (405) through a fixing bolt (407), a push rod (409) is installed at one end of the inner side of the heat preservation box (103), and a baffle (410) is installed at the top of the push rod (409).

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