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Asphalt mixture low temperature freezing test device

A technology of asphalt mixture and test device, which is applied in the direction of material inspection products, etc., can solve the problems of easy-to-deform gear transmission accuracy and low accuracy of the frame, and achieve the effects of high positioning accuracy, elimination of influence, and stable transmission

Inactive Publication Date: 2011-12-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a low-temperature freeze-break test device for asphalt mixture in order to solve the problems that the frame of the existing asphalt mixture test device is easily deformed and the gear transmission accuracy is not high

Method used

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  • Asphalt mixture low temperature freezing test device
  • Asphalt mixture low temperature freezing test device
  • Asphalt mixture low temperature freezing test device

Examples

Experimental program
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specific Embodiment approach 1

[0007] Specific implementation mode one: combine figure 1 with image 3 Describe this embodiment, this embodiment includes four guide rails 1, a first fixed seat 2, a first slide plate 3, two pillars 4, a ball screw 5, a first flange 7, a motor 10, and two specimen fixtures 11 , the second fixed seat 12, the second slide 13, the connecting rod 14 and the load cell 15, the first slide 3 is provided with the first vertical dovetail groove 3-1, the second slide 13 is provided with the second vertical dovetail Groove 13-1, one end of each specimen fixture 11 is provided with dovetail 11-2, and the first sliding plate 3 and the second sliding plate 13 are arranged oppositely, and the first vertical dovetail groove 3-1 and the second vertical dovetail groove 13- 1. Set up facing, use the test piece centering device to place the upper and lower ends of the test piece 19 in the grooves 11-1 of the two test piece fixtures 11, and glue the test piece 19 and the test piece fixture 11 fi...

specific Embodiment approach 2

[0008] Specific implementation mode two: combination figure 1 Describe this embodiment, the difference between this embodiment and specific embodiment 1 is: it also adds a coupling 6, one end of the coupling 6 is connected with the output shaft of the motor 10, and the other end is connected with the ball screw 5. Such design makes the present invention easy to assemble and disassemble. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0009] Specific implementation mode three: combination figure 1 This embodiment is described. The difference between this embodiment and the first embodiment is that it also adds a second flange 8, which is arranged between the coupling 6 and the first flange 7 and is sleeved on the Two struts on 4. This design makes the motor 10 work more stably. Other components and connections are the same as those in the first embodiment.

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Abstract

The invention relates to an asphalt mixture test device. The invention aims to solve the problems that the frame of the existing asphalt mixture test device is easily deformed and the transmission precision of the gear is not high. The two specimen fixtures are respectively installed in the first vertical dovetail groove and the second vertical dovetail groove. The first slide plate and the second slide plate are set on four guide rails. One end of the nut is connected to the second slide plate through a connecting piece. The fixed seat and the second fixed seat are respectively fixed on the two ends of the four guide rails, one end of the connecting rod is fixedly connected to the end face of the first slide plate, and the other end passes through the first central hole on the first fixed seat to connect with the load cell One end of the two pillars is fixedly connected to the second fixing seat, the other end is fixedly connected to the first flange, the motor is fixed on the first flange, and the output end of the motor is connected to the ball screw. The invention can perform real-time displacement compensation for the deformation of the test piece, and eliminates the influence of the test result caused by the deformation of the test piece as the temperature drops in the measurement system.

Description

technical field [0001] The invention relates to an asphalt mixture test device. Background technique [0002] At present, most of the racks of the existing asphalt mixture test devices are made of special materials (indium steel), which are expensive, and will shrink and deform to a certain extent as the temperature decreases, which will have a certain impact on the test results; now The transmission of the asphalt mixture test device mostly adopts gear transmission, and the precision is not high. Contents of the invention [0003] The object of the present invention is to provide a low-temperature freeze-break test device for asphalt mixture to solve the problems of easy deformation of the frame and low gear transmission precision of the existing asphalt mixture test device. [0004] The present invention includes four guide rails, a first fixed seat, a first slide plate, two pillars, a ball screw, a first flange, a motor, two test piece fixtures, a second fixed seat, a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/42
Inventor 谭忆秋薛忠军张磊程小亮韩超欧阳剑
Owner HARBIN INST OF TECH
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