WJ-1 Internal Combustion Scraper

1.Adopt Danfoss’ latest generation 90 series variable hydraulic pump and variable motor. Danfoss hydraulic system is an internationally renowned brand with low failure rate and perfect matching. It is the best match with 225 motor, which can give full play to the maximum efficiency of the motor, effectively guarantee the service life of the whole vehicle and axle, reduce maintenance costs, and improve equipment attendance rate and mining efficiency.

2.Carefully developed and original latest generation cable winding servo follow-up system ensures that the cable can keep pace with the whole vehicle regardless of the transportation state, better protect the cable from accidental damage, and effectively extend the service life of the cable.

3.The whole vehicle frame and plate use Q345B low alloy steel as the main material of the frame. The yield lower limit of this material is about 345Mpa, which can withstand various loads from inside and outside the vehicle. Not only is the strength guaranteed, but it also undergoes seven processes of normalizing, aging, sandblasting, and anti-corrosion welding, so it meets the requirements of the frame and working device for structure, power, movement, etc.

4.The drive axle uses a heavy-duty 30-axle, which is stronger and more durable than the light-duty axles of other manufacturers, has high impact resistance, reduces the failure rate, and has doubled reliability and safety. It is suitable for complex underground road conditions and shoveling conditions.

5.The copper sleeve of the whole machine uses high-strength brass and radially embeds orderly arranged cylindrical graphite fillers as friction materials. The embedded solid lubricant is easy to form a lubricating film, which plays a great role in its friction and wear performance. It has the advantages of high precision, strong bearing capacity and good wear resistance.

6.The pin shaft is made of 40Cr alloy steel, which needs to go through 5 processes including rough turning, tempering, fine turning, quenching and fine grinding to ensure the stability of the pin shaft during the working period.

7.The hydraulic oil tank adopts pickling, phosphating and high-pressure treatment technology, which is different from the manual cleaning of other manufacturers, thereby ensuring the cleanliness of the hydraulic system and making the pump and motor last longer.

8.The swing design of the rear axle with an intermediate slewing bearing is adopted, which has a more reasonable structure and better control comfort and safety.

9.The oil cylinder has been equipped with a full-range follow-up protection device to protect the oil cylinder piston rod from damage caused by falling rocks, effectively protecting the oil cylinder and extending its service life.

10.The hydraulic oil pipes and joints are all made of well-known brands, such as Continental, Goodyear, Qingdao Rubber Six Hose Co.,Ltd(with mining safety certificate and coal safety certificate), and their service life is greatly extended.

11.The shovel blade adopts Baosteel special wear-resistant 500 plate, which is wear-resistant and shear-resistant, and has a service life of 2-3 times that of ordinary wear-resistant steel plates.

12.The silencer adopts DOC ceramic core, which has obvious purification effect, effectively reduces air pollution and improves the underground working environment.