Ball bearing wear-resistant testing machine

1、 Purpose:Ball bearing wear-resistant testing machine

This testing machine is mainly applicable to the national standard GB/T16925-1997 "Test Method for Wear Resistance of Wet Concrete and Its Products", for conducting wear resistance tests on concrete and its products (pavement bricks, floor tiles, artificial marble, terrazzo, etc.) and other building materials. It is a specialized testing machine for inspecting the wear resistance of pavement and ground materials, and is also one of the equipment for municipal, highway, bridge and other construction units, as well as for concrete product factories and scientific research laboratories. The machine has a simple, lightweight, intuitive structure, easy maintenance, and accurate and reliable digital display of test data.

2、 Technical parameters:Ball bearing wear-resistant testing machine

1. Grinding head: 13X Φ 15.875mm

2. Pressure load on the grinding head: 154 ± 2.5N

3. Rated speed of shaft load: 1000-1050r/min

4. Grinding head working hardness:>HRC62

5. Scratching stroke: 10mm

6. Noise: ≯ 75dB

7. Suitable specimen size for wear area: ≮ 100 * 100m ≯ 200 * 200mm

8. Motor power: 0.75kW

9. Dimensions (length * width * height): 450 * 750 * 910mm

10.Net weight: 75kg

3、 Installation and use:

1. This machine is packaged in wooden boxes. After opening the box, it is necessary to check whether the product certificate, packing list, user manual and other materials are complete, and to check whether the items inside the box are complete and consistent according to the product packaging.

2. The testing machine that has passed the box inspection should be placed horizontally on the workbench. This machine does not require special foundations or anchor bolts, as long as it is level and stable.

3. Plug in the inlet pipe and connect it to the water source, then plug in the outlet pipe. Connect the four core plug of this machine to a three-phase 380V AC power supply and ensure reliable grounding before it can be put into use.

4. Place the worn surface of the specimen upwards into the specimen fixture frame, which has a moving plate that can be adjusted according to the different widths of the specimen. Adjust the horizontal position of the worn surface through a horizontal adjustment disc, and then rotate the clamping screw to clamp the specimen.

5. Place the grinding head on the grinding surface, rotate the lifting handle to lower the frame and hollow shaft and press them onto the grinding head. The ball bearings of the grinding head should be aligned with the lower end raceway of the hollow shaft to prevent the hollow shaft from touching the sensor on the grinding head.

6. Continue to rotate the lifting handle to lower the frame until the top of the sensor aligns with the red engraved line. At the same time, the measuring rod of the dial gauge should be in contact with the top plate and have a mileage of>5mm. 7. Turn on the locking handle (19) and the protective cover (21) on the board to open the water source. When the water continuously flows towards the worn surface of the test piece (3) inside the hollow shaft, start the test. 8. Press the "Desire" button on controller (18), and motor (15) will start working. When grinding head (4) rotates about 30 revolutions, it will automatically stop. Record the reading on dial gauge (9), press the "Reset" button to reset the digital display to zero. Then press the "start" button again, and the machine will start running. When the grinding head (4) rotates to 1000 revolutions, it will automatically stop recording the reading on the dial gauge. Press the "start" button again, and the machine will continue to run. After every 1000 revolutions, the grinding head (4) will automatically stop and record the reading on the dial gauge. However, when it reaches 5000 revolutions, the machine will automatically stop and lock itself. To restart the machine, the "reset" button must be pressed to ensure normal operation. During the operation of the machine, if the test needs to be paused, the "stop" button can be pressed to automatically save the stopped data for the continuity of the test data. Integrity and accuracy. 9. The rack of this machine cannot rotate.

10. After the experiment is completed, turn off the water and power sources, and remove the specimen.

4、 Maintenance and upkeep:

1. After the experiment is completed, dry the testing machine, main column, and all working parts, and then add rust proof oil.

2. The transmission part of this machine should be lubricated regularly and run once a month when not in use.

3. During use, the diameter of the grinding ball should be checked regularly, and if it is less than 15.675mm, it must be replaced.

5、 Attention:

1. The machine adopts a three-phase 380V power supply, and the machine casing must be grounded. The equipment is strictly prohibited from use without reliable grounding.

2. During the operation of the grinding head, the dial gauge must be fixed, and the measuring head of the dial gauge must be out of contact with the top plate. When the operation stops, the measuring head contacts the top plate and reads.

3. In the experiment, the dial gauge measured that the depth of the grinding surface should not exceed 1.5mm to prevent wear and damage to the bearing frame of the grinding head, and further testing is not allowed.

4. This machine uses a sensor receiving system to measure the rotation speed of the grinding head. Once the grinding head is found to be running and the digital display of the controller stops, the machine should be stopped immediately to check whether the position of sensor (6) is in the sensor receiving area.