Blog Information

• Posted By : drilling kaiqiu
• Posted On : Aug 26, 2021
• Views : 134
• Category : General
• Description : Water Well Drilling Tools is driven by pneumatic, electric or internal combustion engine; working pressure is divided into high, medium and low wind pressure series products.

Overview

• Why does the crawler down-the-hole drilling rig deviate when it is walking?

  　　 Water Well Drilling Tools is driven by pneumatic, electric or internal combustion engine; working pressure is divided into high, medium and low wind pressure series products. It has the characteristics of large climbing ability, strong adaptability to rugged and uneven roads, and good stability for rock drilling operations. So why does the crawler down-the-hole drilling rig deviate when it is walking? What are the reasons for the deviation? Let's take a look at it together.

  　　 1. The crawler rig was taken away because the pressure of the hydraulic motor was reduced while walking on one side.

  2. Because the parking brake oil passes through a side track, the load is not unloaded: Because the balance valve of the brake oil passage is blocked by foreign objects, the spool cannot move, and the hydraulic oil flow is blocked, making the traveling hydraulic motor in a braking condition and abnormal walking. Committed to operation, this situation should be cleaned according to the balance valve to prevent foreign matter from entering, and to allow the balance valve to switch correctly.

  　　3. Because of the leakage of the traveling motor valve on one side of the track, the pressure in the traveling line is caused, and the lack of hydraulic motor drive leads to the walking ability. The pressure generated by the hydraulic pump is too low: the plunger jam is lowered by the hydraulic pump, and the plunger jam is lowered to reduce the hydraulic oil, resulting in the low pressure of the entire hydraulic oil, the slow speed of the hydraulic motor and the strolling operation.

  　　4. Because the walking proportional valve of the side trajectory of a Rock Button Bits is damaged: the function of the proportional valve is according to the scale of the control stroke, and the output corresponds to the control hydraulic pressure, which leads to different amounts of movement, and then causes the snare drilling rig to operate.