Indoor rotary wheel rut test machine for asphalt mixture
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A technology of asphalt mixture and rutting test, which is applied in the direction of material inspection, analysis of materials, and testing of material hardness, etc. It can solve the problems affecting the comparability of test results, reciprocating motion, and limited distance of rubber wheel reciprocating motion, etc., and achieve test efficiency The effect of improving and eliminating test errors and shortening test time
Inactive Publication Date: 2009-09-23
CHANGAN UNIV
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Problems solved by technology
The main disadvantage of this kind of asphalt mixture rutting test machine is that the rubber wheel reciprocates on the surface of the asphalt mixture test piece, which is different from the one-way rolling in actual driving.
In addition, due to the limitation of the size of the large disc, the reciprocating distance of the rubber wheel is limited. Usually, only one asphalt mixture specimen can be tested in one test, and the anti-rutting ability of an asphalt mixture specimen needs to be tested for a certain number of times. 1 hour, under normal circumstances, only about 6 to 7 specimens can be tested per day
Secondly, due to the difference in ambient temperature fluctuations of different test pieces during the measurement process, it affects the comparability of test results between different test pieces.
Method used
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Embodiment 1
[0017] exist figure 1 , 2 Among them, the indoor rotary asphalt mixture rutting test machine of the present embodiment is composed of a rotating beam 1, a bearing sleeve 2, a bearing 3, a rubber wheel prop slide 4, a rotating shaft 5, a rotating shaft support 6, a rubber wheel prop 7, and a counterweight Block 8, counterweight support 9, rubber wheel 10, backing plate 11, motor gear 12, turntable pillar 13, motor frame 14, speed regulating motor 15, bearing support 16, rotating shaft bearing 17, rotating shaft gear 18, The test bench bottom plate 19, the test bench panel 20, the steel mold 21, the environment box 23, the temperature controller 24, the electric heating tube 25, and the limit column 26 are connected to form.
[0018] On the test bench base plate 19, a rotating shaft support 6, a rotating table pillar 13, a motor frame 14, a bearing support 16, and an environment box 23 are fixedly connected with a threaded fastening connector. On the motor frame 14, a speed re...
Embodiment 2
[0020] In this embodiment, the rotating beam 1 is a Pozier beam. Eight rubber wheel struts 7 are installed on the rotating beam 1 , and one rubber wheel 10 is installed at the lower end of each rubber wheel strut 7 . Other components and the coupling relationship of the components are the same as in Embodiment 1.
Embodiment 3
[0022] In this embodiment, the rotating beam 1 is a straight beam, on which a rubber wheel strut 7 is mounted, and a rubber wheel 10 is mounted on the lower end of the rubber wheel strut 7 . Other components and the coupling relationship of the components are the same as in Embodiment 1.
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Abstract
An indoor rotary asphalt mixture rutting test machine, on the bottom plate of the test bench and in the environment box, there are installed a rotating shaft rotating shaft support, a rotating table pillar whose upper end is connected with the test bench panel, a motor frame with a speed regulating motor installed, The bearing support, the heating pipe, and the speed regulating motor are connected with the rotating shaft through the transmission mechanism. The lower end of the rotating shaft is arranged on the bearing support, the rotating shaft bearing is arranged between the rotating shaft and the bearing support, and the rotating beam is arranged at the upper end of the rotating shaft. , Bearing sleeves and bearings are arranged between the rotating beam and the rotating shaft, at least one rubber wheel support slider with a rubber wheel support inside is provided on the rotating beam, and a counterweight support with a counterweight is provided on the rubber wheel support , Rubber wheels are set at the lower end, limit columns are set on the test bench panel and at least 2 steel molds that can install asphalt mixture specimens are set, a backing plate is set between the steel molds, and a temperature controller is set outside the environmental chamber. It has the advantages of short test time and high efficiency, and can be used for anti-rutting test of asphalt mixture pavement.
Description
technical field [0001] The invention belongs to the technical field of paving and repairing machines, tools or auxiliary equipment for pavement of roads or other similar structures, and in particular relates to an indoor rotary asphalt mixture rutting testing machine. Background technique [0002] At present, asphalt mixture is mainly used for road pavement at all levels at home and abroad. Asphalt mixture is mainly composed of asphalt and aggregate. Asphalt mixture is an elastic, viscous and plastic material. When the rutting is serious, it will not only affect the comfort of driving, but also bring safety hazards to high-speed driving. Rutting is the main damage form of asphalt pavement at present. One, the highway department will spend a large amount of maintenance and repair funds for this every year. [0003] Asphalt content and aggregate ratio in asphalt mixture pavement are important factors affecting rutting. Under the same use environment and traffic volume, a reas...
Claims
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Application Information
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