An asphalt mixture stability tester

Abstract

The utility model discloses a kind of asphalt mixture stability tester, it is related to asphalt mixture test technical field, including test instrument body, the test instrument body one side is equipped with controller, the other side is equipped with detection mechanism, the detection mechanism includes detection frame, elevating seat and the support seat for placing test block, the detection frame is fixed on test instrument body, the elevating seat is set in detection frame directly below, the support seat is installed on elevating seat, the elevating seat is equipped with the first positioning assembly for fixing support seat and the second positioning assembly for positioning test block on it. The utility model is through being equipped with the first positioning assembly and the second positioning assembly on elevating seat, ensure that elevating seat, test block, support seat, pressure sensor and pressure head are in the same vertical line, to ensure that the stress of test block is uniform, effectively improve the accuracy of test data.

Description

Technical Field

[0001] This utility model relates to the field of asphalt mixture testing technology, specifically an asphalt mixture stability tester. Background Technology

[0002] In modern road construction, asphalt mixtures are widely used in the paving of various highways and urban roads. The quality of asphalt mixtures directly affects key performance aspects such as road service life, driving safety, and comfort. Stability, as one of the important indicators for measuring the quality of asphalt mixtures, plays a crucial role in quality control during road construction and subsequent road performance evaluation when accurately tested. Asphalt mixture stability testing generally uses a Marshall stability tester. The Marshall stability tester includes a base, a lifting platform on the base, and a motor that drives the lifting platform. Sliding upper and lower supports are placed on the lifting platform, forming a cavity between them for placing the sample. A displacement sensor is installed on the lower support. A pressure sensor is fixed above the lifting platform via a column. The pressure sensor and displacement sensor are electrically connected to a control device.

[0003] In existing Marshall stability testers, the upper and lower supports are typically placed manually on the lifting platform, and the test block is then placed between the upper and lower supports. Furthermore, the placement of the upper and lower supports on the lifting platform and the position of the test block between the upper and lower supports are all manually controlled, resulting in large errors. This leads to uneven stress on the test block when it is under pressure, thus affecting the accuracy of the test data.

[0004] Based on this, an asphalt mixture stability tester is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide an asphalt mixture stability tester to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An asphalt mixture stability tester includes a tester body. A controller is provided on one side of the tester body, and a testing mechanism is provided on the other side. The testing mechanism includes a testing frame, a lifting seat, and a support seat for placing test blocks. The testing frame is fixed on the tester body. The lifting seat is located directly below the testing frame. The support seat is installed on the lifting seat. The lifting seat is provided with a first positioning component for fixing the support seat and a second positioning component for positioning the test blocks.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: the testing frame includes two support columns fixed to the main body of the testing instrument, the upper end of the support column is provided with a support beam, the middle position of the support beam is provided with a pressure sensor, and the lower end of the pressure sensor is connected to a pressure head.

[0010] In one alternative: the lifting seat includes a base, the lower end of which is fixedly connected to the upper end of the lifting structure on the main body of the testing instrument, and two mounting slots are symmetrically provided on both sides of the base, and the first positioning component is slidably installed in the mounting slot.

[0011] In one alternative: the first positioning component includes a movable plate that is slidably installed in the mounting groove, two locking posts are symmetrically provided on one side of the movable plate, a spring is provided on the other side of the movable plate, and a lever is provided at the lower end of the movable plate.

[0012] In one alternative: the second positioning component includes fixed rods symmetrically fixed on both sides of the base, the base is provided with a sliding groove, a sliding seat is slidably installed in the sliding groove, a vertical rod is connected to the upper end of the sliding seat, a horizontal top rod is fixed to the upper end of the vertical rod, and a driving component is provided on the sliding seat.

[0013] In one alternative: the drive assembly includes a screw threadedly connected to the sliding seat, one end of the screw having a knob, and both sides of the sliding seat having telescopic protective covers, one end of the telescopic protective cover being fixedly connected to the sliding seat and the other end being fixedly connected to a fixing rod.

[0014] In one alternative: the support base includes a lower support base and an upper support base, the upper support base is located on the upper end of the lower support base, the lower end of the lower support base is provided with a mounting seat, the mounting seat is provided with a positioning hole that matches the locking post, the lower support base is symmetrically provided with two material receiving grooves on both sides, and the upper end of the lower support base is symmetrically provided with two connecting rods.

[0015] In one alternative: the upper support seat has two symmetrical connecting holes that match the connecting rod, and the top of the upper support seat has a pressure seat.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention utilizes a first positioning component and a second positioning component mounted on a lifting seat. The first positioning component positions the support seat, and the second positioning component positions the test block. This ensures that the lifting seat, test block, support seat, pressure sensor, and pressure head are all on the same vertical line, thereby guaranteeing uniform force on the test block and effectively improving the accuracy of the test data. Attached Figure Description

[0018] Figure 1This is a structural schematic diagram of one side of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure on the other side of this utility model.

[0020] Figure 3 This is a schematic diagram of the lifting seat in this utility model.

[0021] Figure 4 This is a schematic diagram of the support base in this utility model.

[0022] Figure reference numerals: 100, Test instrument body; 200, Controller; 300, Detection mechanism; 301, Support column; 302, Support beam; 303, Pressure sensor; 304, Pressure head; 400, Lifting seat; 401, Base; 402, Mounting groove; 403, Movable plate; 404, Locking post; 405, Spring; 406, Toggle block; 407, Fixed rod; 408, Slide groove; 409, Sliding seat; 410, Vertical rod; 411, Horizontal top rod; 412, Screw; 413, Knob; 414, Telescopic protective cover; 500, Support seat; 501, Lower support seat; 502, Upper support seat; 503, Mounting seat; 504, Positioning hole; 505, Receiving groove; 506, Connecting rod; 507, Connecting hole; 508, Pressure seat. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] In one embodiment, such as Figure 1 and Figure 2 As shown, an asphalt mixture stability tester includes a tester body 100. A controller 200 is located on one side of the tester body 100, and a testing mechanism 300 is located on the other side. The testing mechanism 300 includes a testing frame, a lifting seat 400, and a support seat 500 for placing test blocks. The testing frame is fixed to the tester body 100. The lifting seat 400 is positioned directly below the testing frame. The support seat 500 is mounted on the lifting seat 400. The lifting seat 400 has a first positioning component for fixing the support seat 500 and a second positioning component for positioning the test block. In use, the support seat 500 is placed on the lifting seat 400 and fixed by the first positioning component. Then, the test block is placed on the support seat 500 and positioned by the second positioning component, so that the lifting seat 400, the test block, and the support seat 500 are on the same vertical line. Then, the lifting seat 400 drives the test block and the support seat 500 to rise together, so that the support seat 500 applies pressure to the test block under the constraint of the testing frame, thereby testing the stability of the test block.

[0025] In one embodiment, such as Figure 2 As shown, the testing frame includes two support columns 301 fixed on the main body 100 of the testing instrument. A support beam 302 is provided at the upper end of the support column 301. A pressure sensor 303 is provided in the middle of the support beam 302. A pressure head 304 is connected to the lower end of the pressure sensor 303. In use, the test block and the support seat 500 are driven to rise together by the lifting seat 400. Pressure is applied to the support seat 500 by the pressure head 304 and transmitted to the test block through the support seat 500. At the same time, the pressure sensor 303 monitors the pressure in real time.

[0026] In one embodiment, such as Figure 3 As shown, the lifting seat 400 includes a base 401. The lower end of the base 401 is fixedly connected to the upper end of the lifting structure on the main body 100 of the testing instrument. The lifting structure is existing technology and generally adopts screw lifting or electric telescopic rod lifting. Two mounting slots 402 are symmetrically provided on both sides of the base 401. The first positioning component is slidably installed in the mounting slot 402. The first positioning component includes a movable plate 403 slidably installed in the mounting slot 402. Two locking posts 404 are symmetrically provided on one side of the movable plate 403, and a spring 405 is provided on the other side of the movable plate 403. A lever 406 is provided at the lower end of the movable plate 403. The second positioning component includes a fixing rod 407 symmetrically fixed on both sides of the base 401. A sliding groove 408 is provided in the base 401. A sliding seat 409 is slidably installed in the sliding groove 408. A vertical rod 410 is connected to the upper end of the sliding seat 409. A horizontal top rod 411 is fixed to the upper end of the vertical rod 410. The 09 is equipped with a drive assembly, which includes a screw 412 threadedly connected to the sliding seat 409. One end of the screw 412 is equipped with a knob 413. Both sides of the sliding seat 409 are equipped with telescopic protective covers 414. One end of the telescopic protective cover 414 is fixedly connected to the sliding seat 409, and the other end is fixedly connected to the fixing rod 407. During installation, the push block 406 is moved inward to retract the locking pin 404 into the mounting groove 402. Then, the support seat 500 is placed on the base 401. Next, the push block 406 is released, and the locking pin 404 moves outward under the action of the spring 405 until it is locked onto the support seat 500, thereby fixing the position of the support seat 500. Then, the test block is placed on the support seat 500. Then, the knob 413 is rotated, which drives the transverse push rod 411 to move toward the test block through the screw 412 and the sliding seat 409 until the position of the test block is adjusted to the center of the support seat 500.

[0027] In one embodiment, such as Figure 4As shown, the support base 500 includes a lower support base 501 and an upper support base 502. The upper support base 502 is located above the lower support base 501. The lower support base 501 has a mounting base 503 at its lower end. The mounting base 503 has a positioning hole 504 that matches the locking post 404. The lower support base 501 has two symmetrical material receiving grooves 505 on both sides. The upper end of the lower support base 501 has two symmetrical connecting rods 506. The upper support base 502 has two symmetrical connecting points that match the connecting rods 506. Hole 507, the top of the upper support 502 is provided with a pressure seat 508. During installation, first place the lower support 501 on the base 401 and make the locking post 404 lock into the positioning hole 504. Then place the test block on the lower support 501 and adjust the position of the test block by the second positioning component. Then place the upper support 502 on the lower support 501 so that the connecting hole 507 is fitted on the connecting rod 506. The receiving groove 505 is used to receive the debris and moisture generated during the test block testing process.

[0028] The above embodiment discloses an asphalt mixture stability tester. In use, the lower support seat 501 is first placed on the base 401 and fixed by the first positioning component. Then, the test block is placed on the lower support seat 501 and the position of the test block is adjusted by the second positioning component. Next, the upper support seat 502 is placed on the lower support seat 501 so that the connecting hole 507 is sleeved on the connecting rod 506. Then, the lifting seat 400 drives the test block and the support seat 500 to rise together, so that the pressure seat 508 abuts against the pressure head 304 and applies pressure to the support seat 500 through the pressure head 304. At the same time, the pressure is transmitted to the test block through the upper support seat 502, and the pressure magnitude is monitored in real time by the pressure sensor 303.

[0029] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An asphalt mixture stability tester, comprising a tester body (100), wherein a controller (200) is provided on one side of the tester body (100), and a testing mechanism (300) is provided on the other side; the testing mechanism (300) includes a testing frame, a lifting seat (400), and a support seat (500) for placing test blocks; the testing frame is fixed on the tester body (100); the lifting seat (400) is located directly below the testing frame; and the support seat (500) is mounted on the lifting seat (400); characterized in that, The lifting seat (400) is provided with a first positioning component for fixing the support seat (500) and a second positioning component for positioning the test block; The first positioning component includes a movable plate (403) that is slidably installed in the mounting groove (402). Two locking posts (404) are symmetrically provided on one side of the movable plate (403), and a spring (405) is provided on the other side of the movable plate (403). A lever (406) is provided at the lower end of the movable plate (403). The second positioning component includes fixed rods (407) symmetrically fixed on both sides of the base (401). The base (401) is provided with a sliding groove (408). A sliding seat (409) is slidably installed in the sliding groove (408). A vertical rod (410) is connected to the upper end of the sliding seat (409). A horizontal top rod (411) is fixed to the upper end of the vertical rod (410). A driving component is provided on the sliding seat (409).

2. The asphalt mixture stability tester according to claim 1, characterized in that, The testing frame includes two support columns (301) fixed on the main body (100) of the testing instrument. The upper end of the support column (301) is provided with a support beam (302). The middle position of the support beam (302) is provided with a pressure sensor (303). The lower end of the pressure sensor (303) is connected to a pressure head (304).

3. The asphalt mixture stability tester according to claim 1, characterized in that, The lifting seat (400) includes a base (401), the lower end of which is fixedly connected to the upper end of the lifting structure on the main body (100) of the test instrument. Two mounting slots (402) are symmetrically provided on both sides of the base (401), and the first positioning component is slidably installed in the mounting slot (402).

4. The asphalt mixture stability tester according to claim 1, characterized in that, The drive assembly includes a screw (412) threadedly connected to the sliding seat (409). One end of the screw (412) is provided with a knob (413). Both sides of the sliding seat (409) are provided with telescopic protective covers (414). One end of the telescopic protective cover (414) is fixedly connected to the sliding seat (409), and the other end is fixedly connected to the fixing rod (407).

5. The asphalt mixture stability tester according to claim 1, characterized in that, The support base (500) includes a lower support base (501) and an upper support base (502). The upper support base (502) is located on the upper end of the lower support base (501). The lower end of the lower support base (501) is provided with a mounting base (503). The mounting base (503) is provided with a positioning hole (504) that matches the locking post (404). The lower support base (501) is provided with two material receiving grooves (505) symmetrically on both sides. The upper end of the lower support base (501) is provided with two connecting rods (506) symmetrically.

6. The asphalt mixture stability tester according to claim 5, characterized in that, The upper support (502) is symmetrically provided with two connecting holes (507) that match the connecting rod (506), and the top of the upper support (502) is provided with a pressure seat (508).

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