Drilling rig and rig frame thereof

Abstract

The invention discloses a rig frame of a drilling rig. The rig frame of the drilling rig comprises a rig frame front part and a rig frame rear part which are mutually connected, wherein the rig frame front part is of a channel beam structure, and the rig frame rear part is of an integral box-type structure. The integral box-type structure is free of the problem of rig frame connection, so that the problem of connecting misplacement of a main rig frame and a secondary rig frame in the prior art is resolved. In addition, the bending resistance and the torsion resistance of the integral box-type structure are high, the inertia moment of the cross section is strengthened, the stress of the whole drilling rig is improved, and the working stability of the rig frame is improved. Due to the fact that inertia moment of the cross section is decided by the size of a box and has little relationship with plate thickness, after a double-layer connecting structure combined by a mediate and small box and channel beams in the prior art is changed into the larger integral box-type structure, on the premise that the rigidity and the strength are guaranteed, the wall thickness of the rig frame rear portion can be appropriately reduced, and the weight of the rig frame is lowered. In addition, after the rig frame rear portion is of the integral box-type structure, an operator does not need to buy a universal chassis to modify the rig frame, and production cost is lowered.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a drill truck and its vehicle frame. Background technique [0002] A drilling rig is a mechanical device that drives a drilling tool to drill into the ground to obtain physical geological data. The chassis of the drilling rig includes a frame, which is connected to the derrick through a luffing oil cylinder, and a vertical oil cylinder is also arranged on the frame. [0003] Such as figure 1 As shown, this figure is a diagram of the driving state of the drilling rig in the prior art. When the drilling rig is in the driving state, the derrick is horizontally placed on the vehicle frame 1'. At this time, the chassis is equivalent to a fully loaded truck, and the vehicle frame 1' holds the weight of the chassis and its top. It is transmitted to the ground through the tires, and at the same time eliminates various impact loads on the ground to ensure the smooth runnin...

AI Technical Summary

Problems solved by technology

This causes the overall weight of the frame 1′ to be relatively large, which does not meet the design requirements for lightweight drilling rigs

[0011] In addition, the fixed leg 13' of the above-mentioned vehicle frame 1' is connected with the subframe 122', so the force transmission process when the drilling rig is working is the derrick 2' and other components-subframe 122'-fixed leg 13'-ground , and the main frame 121' does not participate in force transmission, resulting in uneven stress on the whole frame 1'

[0012] Finally, modifying the frame will increase a lot of manpower and material costs, and the overall manufacturing cost will be higher

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