Name：Electric sand paving instrument
Model：LD-138
Specification
一、Overview:
The depth of pavement structure is an indicator of the roughness of the pavement. In the past, the artificial sand paving method was used to measure the depth in China. Although the method is simple, the human error is too large and the actual operation standard is lacking. This situation can no longer meet the test of my country’s road department. need. Since the Ninth Five-Year Plan, my country’s high-level highways have entered the key construction stage.
The “Subgrade and Pavement Field Test Regulations” stipulate the testing content and promote the use of electric sand paving equipment to meet the needs of high-level highway pavement engineering quality standard testing methods.
This instrument improves many shortcomings of previous instruments based on the actual situation of our country, and produces an intelligent electric sand-laying instrument.
二、Instrument structure:
The intelligent electric sand spreader is composed of sand funnel, frame, ruler, micro motor and control manipulator. The standard accessories of the electric sand spreader are composed of glass plates for calibration, standard sand cylinders, and brushes.
三、Main technical parameters:
- The capacity of the sand funnel is about 70 ml. The width of the bottom opening of the sand funnel is 4 millimeters
Meter. The size of the sanding belt: width 50 mm, thickness 4 mm.
- Sand funnel moving speed: 0-25mm/s adjustable.
- Movement range of sand funnel: 350mm.
- Dimensions: 570×85×80mm.
- Motor power supply: 12V7.5AH.