Rotating bottle wear meter installation and debugging method - Database & Sql Blog Articles

First, the scope of application:

This device is designed to test the compatibility between specific aggregate grades and modified emulsified asphalt. It uses a single-phase asynchronous motor, a reducer, and a chain drive system to rotate the bottle around its axis while the test specimen moves between the rotating bottle and water.

It is compliant with JTG E20—2011 "Testing Procedures for Asphalt and Asphalt Mixtures for Highway Engineering" T0758-2011, which outlines the procedure for determining the compatibility grade of slurry mixtures.

Second, the structure and features:

The equipment consists of a single-phase asynchronous motor, a reducer, a chain drive, a rotating mechanism, and a rotating bottle installation. The electrical system includes a counter and a proximity switch, ensuring a neat and professional appearance.

Third, technical parameters and specifications:

Dimensions: 100 × 735 × 705 mm

Rotation speed: 20 r/min

Maximum running speed: 9999 × 100 rpm

Maximum number of test pieces: 8

Maximum running time: 8 hours (actual operation: 3 hours)

Power supply voltage: 380V (50Hz)

Fourth, installation and commissioning:

1. Install and wire the electrical control panel.

2. Mount the spindle by fixing the rotating frame on the main shaft, installing a flat key, and securing the sprocket to the main shaft using the same key. Fix the end of the main shaft away from the sprocket to the bearing on the seat. Ensure the sprocket is fixed through the chain box hole, and secure the bearing housings on both sides of the side bearing to the main frame, chain coupling, and reducer sprocket.

3. Adjust the chain tension by adjusting the reducer base to secure the reducer bracket and bearing bracket.

On the control panel, from left to right, you will find: counter, reset button, start button, stop button, and power main switch. The counter can be set from 0 to 9999 × 100 and has a power-down memory function. To restart, press the reset button to return to zero.

To perform the test, first fill the rotating bottle with 3/4 of water, then place the test piece inside, cover the cap with an O-ring, and align the middle hole at the bottom of the bottle with the tip of the fixed end on the rotating frame. Align the center hole on the cap with the tip of the grip knob, and turn the knob to tightly secure the cap. Repeat this process for the other bottles. After installation, close the front door and the upper cover. Set the counter value (usually 3600, meaning three hours), press the reset button to zero it, and then press the start button to begin the test. When the counter reaches the set value, the device will stop automatically, completing the test.

Sixth, equipment maintenance:

1. Grease the bearings once a year in May and November.

2. Apply grease to the chain every three months.

3. Replace the gear unit annually.

4. After each test, clean the rotating bottle thoroughly to ensure accuracy and longevity of the equipment.