Asphalt stability tester

Abstract

The utility model discloses an asphalt stability tester which comprises a testing box, a fixing clamp, a heater, a friction wheel and a motor, the fixing clamp and the heater are arranged in the testing box, the fixing clamp is used for clamping an asphalt sample, the heater is used for heating the asphalt sample, the motor drives the friction wheel to rotate, and the friction wheel is driven by the motor to rotate. And the friction wheel is used for polishing an asphalt sample. The utility model aims to provide an asphalt stability tester which can be used for measuring the wear resistance of asphalt at different temperatures.

Description

TECHNICAL FIELD

[0001] The utility model relates to bitumen detection technical field, especially a kind of bitumen stability tester. BACKGROUND

[0002] In the field of road traffic construction, as a widely used material, the stability and durability of asphalt are directly related to the quality and service life of the pavement. The stability of asphalt is one of the important indicators to measure its unchanged original properties under specific environmental and usage conditions. Therefore, accurately and efficiently measuring the stability of asphalt is of great significance to ensure the quality of road construction. In the existing asphalt stability determination device, only heating function can be provided to simulate the temperature environment of asphalt in actual road, but the wear resistance stability of asphalt under specific temperature cannot be effectively evaluated. SUMMARY

[0003] In view of the above prior art, the utility model provides a bitumen stability tester, which can measure the wear resistance of bitumen at different temperatures.

[0004] To achieve the above purpose, the technical scheme of the utility model embodiment is as follows:

[0005] A bitumen stability tester, comprising a determination box, a fixing clamp, a heater, a friction wheel and a motor, the determination box is provided with the fixing clamp and the heater, the fixing clamp is used for clamping bitumen sample, the heater is used for heating bitumen sample, the motor drives the friction wheel to rotate, and the friction wheel is used for grinding bitumen sample.

[0006] Specifically, the fixing clamp comprises a support table, a first L-shaped rod, a second L-shaped rod, a screw rod and an elastic support, the support table is provided with a sliding groove, the first L-shaped rod is fixedly connected with the support table, the screw rod is threadedly connected with the second L-shaped rod after penetrating through the sliding groove, the bottom of the support table is provided with an elastic support, and the elastic support is connected with the determination box.

[0007] Specifically, the determination box penetrates a rotating shaft, the rotating shaft is connected with the friction wheel, the motor is arranged outside the determination box, and the motor is connected with the rotating shaft.

[0008] Specifically, the elastic support comprises a guide rod and a spring, the guide rod is fixedly connected with the bottom of the support table, the support table is provided with a guide hole penetrating the guide rod, the spring is sleeved on the guide rod, and the spring is used for supporting the support table.

[0009] Specifically, the heater comprises a fan and an electric heating wire, the fan and the electric heating wire are fixed in the determination box, the air outlet direction of the fan is towards bitumen sample, and the air outlet direction of the fan is provided with the electric heating wire.

[0010] Specifically, the side surface of the friction wheel is provided with a cleaning brush, and the cleaning brush is provided below the contact surface of the friction wheel with a collecting box.

[0011] Specifically, the measuring box is provided with a temperature detection device.

[0012] The asphalt stability tester has the advantages that the measuring box is heated by the heater, so that the temperature of the asphalt sample is increased to the required experimental temperature, a thermometer can be arranged in the measuring box, and the temperature of the measuring box is detected by the thermometer. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 Fig. 1 is a perspective view of an asphalt stability tester according to an embodiment of the present application;

[0014] Fig. 2 Fig. 2 is a sectional view of the asphalt stability tester according to the embodiment of the present application;

[0015] REFERENCE SIGNS

[0016] 1, measuring box; 2, fixing clamp; 3, heater; 4, friction wheel; 5, motor; 6, supporting table; 7, first L-shaped rod; 8, second L-shaped rod; 9, screw rod; 10, elastic supporting member; 11, rotating shaft; 12, guide rod; 13, spring; 14, guide hole; 15, fan; 16, electric heating wire; 17, cleaning brush; 18, collecting box; 19, temperature detection device; 20, sliding groove. DETAILED DESCRIPTION

[0017] The technical scheme of the present application is further described in detail below in combination with the drawings and specific embodiments. Unless otherwise defined, all the technical and scientific terms used in the present application have the same meanings as those commonly understood by the person skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application.

[0018] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; for example, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It must be noted that as used herein, the terms "over" and "on" include different orientations of an element, for example, mounted "over" or "on" another element or surface. Unless otherwise specified, the terms "over", "under", "between", and "on" as used herein refer to a relative position of one component layer with respect to other component layer(s). As used herein, the term "horizontal" refers to a direction along a plane parallel to the plane of the substrate. The term "vertical" refers to a direction along a line perpendicular to the plane of the substrate. Terms, "on", "side" (which is synonymous with "on"), "under", "between", and "on" can be used herein to describe a relationship between or among two or more objects, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", "proximal", "distal", and the like, can be used herein for ease of description to describe one element or portion's relationship to another element(s) or portion(s) as illustrated in the figures. Spatially relative terms can be intended to encompass different orientations of the device in use or operational interface and, therefore, can include other orientations not depicted in the figures.

[0019] Embodiment 1

[0020] Please refer to the accompanying drawings Figs. 1-2 The application provides an asphalt stability tester, which comprises a determination box 1, a fixing clamp 2, a heater 3, a friction wheel 4 and a motor 5. The fixing clamp 2 and the heater 3 are arranged in the determination box 1. The fixing clamp is used for clamping an asphalt sample. The heater 3 is used for heating the asphalt sample. The motor 5 drives the friction wheel 4 to rotate. The friction wheel 4 is used for grinding the asphalt sample. The determination box 1 is heated by the heater 3, so that the temperature of the asphalt sample is increased to a required experimental temperature. A thermometer can be arranged in the determination box 1, and the temperature of the determination box 1 is detected by the thermometer. After the temperature in the determination box 1 reaches equilibrium, the motor 5 is used to drive the friction wheel 4 to rotate slowly. The friction wheel 4 is rubbed with the asphalt sample, so that the wear resistance stability of the asphalt sample is determined. The fixing clamp 2 is arranged in the determination box 1. The asphalt sample is fixed firmly by the fixing clamp 2 during the determination process, so that the asphalt sample is prevented from deviating.

[0021] Specifically, the fixing clamp 2 comprises a supporting table 6, a first L-shaped rod 7, a second L-shaped rod 8, a screw rod 9 and an elastic supporting piece 10. The supporting table 6 is provided with a sliding groove 20. The first L-shaped rod 7 is fixedly connected with the supporting table 6. The screw rod 9 is threadedly connected with the second L-shaped rod 8 after penetrating through the sliding groove 20. The bottom of the supporting table 6 is provided with the elastic supporting piece 10. The elastic supporting piece 10 is connected with the determination box 1. The elastic supporting piece 10 is used for supporting the supporting table 6. The first L-shaped rod 7 and the second L-shaped rod 8 are arranged on the supporting table 6. The first L-shaped rod 7 and the second L-shaped rod 8 are used for clamping the asphalt sample. During clamping, the first L-shaped rod 7 is fixed. The second L-shaped rod 8 is pushed to slide along the sliding groove 20. After the second L-shaped rod 8 slides to a proper position, the screw rod 9 is tightened. The second L-shaped rod 8 is fixed firmly on the supporting table 6 by the screw rod 9, so that the asphalt sample is clamped. Preferably, in order to clamp the asphalt sample better, the asphalt sample can be made into a square shape. The first L-shaped rod 7 and the second L-shaped rod 8 are respectively arranged at the opposite diagonal positions of the asphalt sample, so that the stability of fixing is improved.

[0022] Specifically, the determination box 1 is penetrated by a rotating shaft 11, the rotating shaft 11 is connected with the friction wheel 4, the motor 5 is arranged outside the determination box 1, and the motor 5 is connected with the rotating shaft 11. The motor 5 drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the friction wheel 4 to rotate, the friction wheel 4 rubs the asphalt sample, the abrasion of the asphalt sample is observed, and then the abrasion resistance of the asphalt sample is determined.

[0023] Specifically, the elastic support 10 comprises a guide rod 12 and a spring 13, the guide rod 12 is fixedly connected with the bottom of the support table 6, the support table 6 is provided with a guide hole 14 penetrating through the guide rod 12, and the spring 13 is sleeved on the guide rod 12 and used for supporting the support table 6. The guide rod 12 and the guide hole 14 are matched, the support table 6 slides up and down along the guide rod 12, and the stability of the support table 6 is improved. The spring 13 is located around the bottom of the support table 6, the spring 13 is used for supporting the support table 6, and the asphalt sample on the support table 6 can be stably attached to the friction wheel 4.

[0024] Specifically, the heater 3 comprises a fan 15 and an electric heating wire 16, the fan 15 and the electric heating wire 16 are fixed in the determination box 1, the air outlet direction of the fan 15 is towards the asphalt sample, and the electric heating wire 16 is arranged on the air outlet direction of the fan 15. The electric heating wire 16 generates heat, the heat is blown to other positions in the determination box 1 by the fan 15, the fan 15 improves the heat convection in the determination box 1, and the temperature balance in the determination box 1 is promoted.

[0025] Embodiment 2

[0026] Please refer to the accompanying drawings Figs. 1-2 The difference between the embodiment and the embodiment 1 lies in that the side surface of the friction wheel 4 is provided with a cleaning brush 17, and the cleaning brush 17 is provided with a collection box 18 below a contact surface of the friction wheel 4. When the friction wheel 4 rotates, the cleaning brush 17 brushes off the attachments on the friction wheel 4, the friction wheel 4 is kept clean, and the accuracy of the determination result is ensured.

[0027] Specifically, the determination box 1 is provided with a temperature detection device 19, for example, a thermometer or a temperature measuring gun, which can measure the temperature in the box body or the temperature of the asphalt sample and the friction wheel 4.

[0028] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An asphalt stability tester characterized by, The utility model provides a kind of asphalt test device, including determination box, fixed clamp, heater, friction wheel and motor, the fixed clamp is used to hold asphalt sample in the determination box, and the heater is used to heat asphalt sample, and the motor drives the rotation of the friction wheel, and the friction wheel is used to polish asphalt sample.

2. An asphalt stability tester according to claim 1, wherein, The fixed clamp includes support table, first L-shaped rod, second L-shaped rod, screw rod and elastic support, the support table is provided with sliding slot, the first L-shaped rod is fixedly connected with the support table, the screw rod is screwed with the second L-shaped rod after passing through the sliding slot, the bottom of the support table is provided with elastic support, and the elastic support is connected with the determination box.

3. The asphalt stability tester of claim 1, wherein, The determination box is penetrated by rotating shaft, the rotating shaft is connected with the friction wheel, and the motor is arranged outside the determination box and connected with the rotating shaft.

4. The asphalt stability tester of claim 2, wherein, The elastic support includes guide rod and spring, the guide rod is fixedly connected with the bottom of the support table, the support table is provided with guide hole penetrating the guide rod, the spring is sleeved on the guide rod, and the spring is used to support the support table.

5. The asphalt stability tester of claim 1, wherein, The heater includes fan and electric heating wire, the fan and electric heating wire are fixed in the determination box, the air outlet direction of the fan is towards asphalt sample, and the air outlet direction of the fan is provided with the electric heating wire.

6. The asphalt stability tester of claim 1, wherein, The side surface of the friction wheel is provided with cleaning brush, and the lower part of the contact surface of the friction wheel is provided with collecting box.

7. The asphalt stability tester of claim 1, wherein, The determination box is provided with temperature detection device.

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