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Double-shaft rolling type wear resistance testing device and method capable of simulating channel section form

A channel cross-section and testing device technology, which is applied to measuring devices, testing wear resistance, strength characteristics, etc., can solve problems such as low efficiency and unstable single-axis motor structure

Active Publication Date: 2021-09-14
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the fact that the existing technology ignores the influence of the structural section shape on the wear resistance characteristics during the wear resistance test of concrete materials and the instability and low efficiency of the single-axis motor structure, the present invention provides a dual-axis rolling type that can simulate the channel section Form wear resistance testing device and method to more accurately determine the debris flow abrasion coefficient of concrete materials and provide a more reliable scientific basis for the effective design of debris flow drainage structures

Method used

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  • Double-shaft rolling type wear resistance testing device and method capable of simulating channel section form
  • Double-shaft rolling type wear resistance testing device and method capable of simulating channel section form
  • Double-shaft rolling type wear resistance testing device and method capable of simulating channel section form

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Embodiment 1

[0058] The main defect of the prior art 1 whose patent publication number is CN110243710A is: the deviation of the experimental results caused by the vertical stirring of the motor; , but there are still the defects that it can only carry out the wear test under the single flow-solid condition, the fluid is easy to leak, and the instrument is easy to tilt. With the deepening of the research, it was found that there is a defect in the prior art that "the influence of the structural cross-section shape on the wear resistance properties in the process of the wear resistance test of concrete materials is ignored".

[0059] In view of the defects of the existing technology: first, the impact of the structural section shape on the wear resistance characteristics during the wear resistance test of the concrete material is ignored; second, the structure of the single-axis motor is unstable and the efficiency is low. This embodiment proposes a wear resistance test device different from...

Embodiment 2

[0065] This embodiment is described in more detail on the basis of Embodiment 1. In this example, if figure 2 As shown, a double-axis roll-type wear resistance test device that can simulate the shape of the channel section includes a motor support base 3, a double-axis motor 1 installed on the motor support base 3, a series of detachable installations on the double-axis The disc device 2 on the spindle of the shaft motor 1 and a series of sample boxes 24 for placing samples.

[0066] Further, the biaxial motor 1 includes a motor body, a motor base 12 for installing the motor body, and a control panel 11 for controlling and displaying the working state of the motor body; the motor base 12 is installed on the motor support base 3 through base bolts 31 Above; the control panel 11 includes a built-in microcontroller, a speed display, a speed adjustment button, a start button, a stop button, and a timing device that are arranged on the work panel and connected to the microcontrol...

Embodiment 3

[0093] This embodiment is described in more detail on the basis of Embodiment 1 or Embodiment 2. This example discloses a test method for testing the wear resistance of concrete materials under different cross-sectional shapes and different flow velocities, using the double-axis roll-type wear-resistant testing device that can simulate the cross-sectional shape of the channel described in Example 1 to test the samples Carry out wear resistance test; the test method shown selects disc devices with different cross-sectional shapes 2, pours different types of concrete samples and configures different types of abrasive materials 6, according to the weight of the sample before abrasion, the weight of the sample after abrasion, and the sample Calculate the loss of sample mass over time and the depth change of sample mass over time, according to the loss of sample mass over time and the change of sample mass over time The depth change evaluates the abrasion resistance of the samples....

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Abstract

The invention relates to the technical field of wear resistance testing and particularly discloses a double-shaft rolling type wear resistance testing device and method capable of simulating a channel section form. The wear resistance testing device comprises a motor supporting base, a double-shaft motor, a disc device and a sample box, wherein the disc device comprises a disc body; the disc body is provided with two opposite side parts and an annular testing part, one side part is provided with a circular feeding hole, and the other side part is provided with a disc output shaft; the annular testing part is annularly arranged in the circumferential direction of the rotating shaft of the disc body, and the two side parts are connected into a whole and form a hollow semi-closed structure; the cross section structure of the bottom, protruding outwards, of the annular testing part is in a structural section form for testing; the sample box is arranged on the outer side of the annular testing part; and the disc devices are a series of disc devices of which the annular testing parts protrude outwards, and the cross section structures of the bottoms of the disc devices are different. The testing device is advantaged in that the channel section shape can be simulated, and abrasion resistance obtained through testing is closer to the situation in a real project.

Description

technical field [0001] The invention relates to the technical field of wear resistance testing of concrete materials, in particular to a double-axis rolling wear resistance testing device and method capable of simulating the cross-sectional shape of a channel. Background technique [0002] Abrasion Resistance refers to the ability of a material to resist wear and abrasion. Wear is mainly due to the reduction of volume and mass due to the friction between materials and the surface of other objects, and wear is the phenomenon of mass and volume reduction that occurs under the two effects of friction and impact. Corridor floors in construction projects, highway pavements in traffic engineering, overflow surfaces of overflow dams in water conservancy projects, gate piers, flood discharge tunnels and tunnel linings are often damaged by the erosion of sand-laden water or the impact of rock-laden water . In the field of mountain disaster protection engineering, under the impact a...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01N3/02G01N5/00
CPCG01N3/565G01N3/567G01N3/02G01N5/00
Inventor 吴帆陈晓清赵万玉宁坡
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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