Excavator long front boom customization instructions

The excavator long front boom produced by Huitong Heavy Industry is a set of specially designed and manufactured excavator front-end working devices tailored to expand the working range of the excavator according to the requirements of special working conditions. The connection part must strictly conform to the connection size of the original excavator. In order to facilitate the installation and use of the equipment and maximize the performance of the whole machine.

1. Divided according to their operation methods: building demolition extension arm, deep pit extension arm, piling extension arm, etc.;

2. According to the number of sections: two-stage extended arm, three-stage extended arm, four-stage extended arm, etc.;

3. According to its performance: fixed extension arm, sliding extension arm, telescopic extension arm, etc.;

In order to better save the user's cost when replacing the excavator long front boom, we will carefully analyze which parts on the original car can be used back to the original, and which must be replaced, so as to save the maximum cost for customers.

The production process of the excavator long front boom when the standard arm is replaced with an excavator long front boom is:

1. Computer design; 2. Stress analysis; 3. Action simulation; 4. Computer drawing; 5. Computer programming; 6. Numerical control cutting; 7. Carbon dioxide shielded welding and submerged arc welding; 8. Stress relief; 9. Hydraulic Pipe preparation; 10. Large floor milling and boring machine processing; 11. Automatic sandblasting; 12. Automatic painting and other processes to complete; 13. General assembly; 14. Pressure test verification;

Structural properties

The fixed excavator long front boom is generally made of standard national standard high-strength steel, which has good strength and rigidity. The shaft sleeve is generally made of thick-walled pipe that is compatible with the material of the arm plate, with a special bushing inside, plus The lubricating butter greatly reduces the shear force generated by the frequent rotation of the shaft and the sleeve, thereby increasing the service life of the shaft sleeve. The excavator long front boom is generally a box-type structure, that is, it is composed of two upper and lower cover plates and two left and right wall plates. The buffer ribs must be welded inside, and the buffer ribs must have elliptical holes, which can better release the extension. The stress generated by the arm during welding and work can avoid the damage to the extension arm.

The excavator long front boom belongs to large-scale heavy industrial equipment, so special equipment is needed to better ensure the quality and performance of the product. Excluding general equipment, our company also has special equipment for the front-end working device of the excavator as follows:

Flame and plasma CNC cutting machine, large automatic bevel milling machine, large bending machine, large welding positioner, automatic welding; buried welding, stress shot blasting device, CNC pipe bending machine and automatic pipe welding machine, large arm body Special floor milling and boring machine, large hydraulic test device, etc.