What fixing methods need to be considered when transporting a deep hole drilling rig?

As a heavy-duty precision equipment for deep hole processing, the transportation and fixation of deep hole drilling rigs is the core link to ensure the structural integrity of the equipment, processing accuracy and road transportation safety. Since deep hole drilling rigs generally have the characteristics of large size, uneven weight distribution, and high precision requirements for core components (such as spindle box and bed), improper fixation during transportation can easily cause component displacement, structural deformation, and even collision damage. Therefore, a targeted fixing solution must be adopted based on the characteristics of the equipment.

It is the foundation fixation of the core structure. The bed of the deep hole drilling machine is the main body of the load-bearing machine. During transportation, it must be accurately aligned with the special support seat of the transport vehicle. High-strength alloy steel bolts with a diameter of no less than M24 are used to penetrate the preset mounting holes at the bottom of the bed and the transport vehicle support. Double nuts and anti-loosening washers are used to achieve two-way anti-loosening. The bolt pre-tightening force must be strictly controlled within the range recommended by the equipment manufacturer to avoid shaking due to insufficient pre-tightening force, or cracking of the bed casting caused by excessive pre-tightening force. For an integrated deep-hole drilling rig, lateral blocks need to be set at the front and rear ends of the bed, using a combined structure of rubber and steel plates to limit lateral displacement and buffer the vibration and impact during driving.

The second is the limit locking of moving parts. The main spindle box of the deep hole drill is a key moving component. During transportation, it needs to be fixed at the middle stroke position of the bed, and its forward and backward movement is restricted by a special hydraulic locking device or mechanical clamp. Buffer rubber pads are installed on both sides to prevent the spindle box guide rail surface from being damaged by collision. As a core component that maintains the stability of the center of gravity of the equipment, the balance weight needs to be rigidly connected to the machine bed or spindle box through heavy-duty clamps to prevent it from sliding and shifting when driving on a ramp. The locking bolts must be repeatedly checked to ensure that there are no signs of looseness when fixing the counterweight. For drilling machines with automatic tool changing mechanisms, the tool magazine must be fixed to the bracket with a special lock pin to prevent the tool magazine from rotating or the tool from falling off.

The third step is to organize and fix the ancillary systems. Hydraulic pipelines, electrical cables, cooling pipelines, etc. of deep hole drilling rigs are prone to wear or loosening due to bumps. Before transportation, all pipelines need to be coiled neatly and fixed on the preset fixed frame of the equipment with high-strength straps. Dust-proof plugs are installed at all interfaces to prevent sediment from entering; detachable pipelines need to be disassembled in advance, sealed in special packaging and fixed in the special storage area of ​​the transport vehicle, and clearly marked to facilitate subsequent installation. In addition, protruding precision parts such as spindles and drill bits need to be equipped with protective sleeves to avoid collision with surrounding objects.

It is the verification and monitoring after fixation. After the fixation is completed, three verifications are required: first, the center of gravity offset check to ensure that the total center of gravity of the equipment does not deviate more than 10 cm from the center axis of the transport truck bed to avoid instability of the center of gravity during driving; second, the pull force check, using a total pull force of not less than High-strength polyester straps or steel chains that are 1.5 times the total weight of the equipment are evenly distributed at the four corners of the bed and both ends of the spindle box. The pulling force of each fixed point must be verified by a dynamometer; the third is a static test push. If there is no obvious displacement when pushing the equipment manually, it is qualified. It needs to be stopped for inspection every 2 hours during transportation, especially when passing through bumpy road sections, ramps or high-speed service areas. The tightness of the bolts and the locking of the straps need to be checked one by one to ensure that they are fixed throughout the process.

The transportation and fixation of deep-hole drilling rigs is a systematic task that takes into account structural safety, accuracy protection, and road compliance. It needs to be adjusted based on the equipment tonnage, structural characteristics, and transportation mileage. The core is to minimize the impact of transportation vibration on equipment accuracy while meeting road regulations, so as to ensure that the equipment can be quickly put into use after arrival.