Soil cleaning device and drilling machine as well as use method of soil cleaning device

Abstract

The invention provides a soil cleaning device which comprises a support arm (2) with one end which is hinged on a drilling machine, a rotary disc (3), a pusher dog disc (4) and an oil cylinder (6), wherein the support arm (2) comprises an arm body (2a) and a rotary shaft (2b) which is fixed at one end far away from a hinging end; one end of the oil cylinder (6) is hinged with the support arm (2), and the other end of the oil cylinder (6) is hinged on the drilling machine; the support arm (2) can rotate along a hinging point by the expansion and retraction of the oil cylinder (6); the rotary disc (3) can be rotatably installed on the rotary shaft (2b) of the support arm (2); the pusher dog disc (4) comprises a flange (4a) and a plurality of scarification rods (5) which are coupled with the flange (4a); the pusher dog disc (4) is fixedly coupled with the rotary disc (3) through the flange (4a); and the soil cleaning device is also provided with a rotary damping device (8) which is used for generating rotary damping on the rotary disc (3) or the pusher dog disc (4).

Description

technical field [0001] The invention relates to a mechanical clearing device, in particular to an auger rod soil clearing device for a pile foundation drilling rig; the invention also relates to a drilling rig; in addition, the invention also relates to a method for using the soil clearing device. Background technique [0002] The pile foundation drilling rig is generally composed of a pile frame, a power head, and an auger rod. During operation, the power head mounted on the pile frame drives the auger rod to drill into a hole underground, and the soil in the hole is discharged to the ground through the auger rod; but Due to different geological conditions, a large amount of soil will be adhered to the helical blade of the drill pipe when the drilling rig is drilling or lifting the drill, which seriously affects the efficiency and quality of the drilling hole, and the method of manual soil removal will affect the construction efficiency and increase the cost. It's not safe....

AI Technical Summary

Problems solved by technology

[0007] 1. Since the earth-moving rod is fixed on the soil-removing turntable, when the helical blade of the drill pipe rotates to push the soil-removing rod, the spiral blade and the soil-removing rod will undergo relative motion and severe friction, which will cause excessive wear and tear of the soil-removing rod. shorten the service life of the soil cleaner;

[0008] 2. Since the helical blades of the drill pipe have a certain inclination angle, when the helical blades of the drill pipe rotate to push the earth-moving rod, in addition to generating an upward circular force to rotate the soil-clearing turntable, an axial force will also be generated to make the soil-moving rod or support rod Deformation affects normal use;

[0009] 3. The operation performance is not safe and reliable enough: Since the soil clearing turntable is passively rotated by the helical blade of the rotating drill pipe and the upward lift, when the drill pipe rotates faster or the drill pipe is lifted faster, use two The rolling bearing installed on one end of the support rod, which can flexibly rotate the soil clearing turntable, will accelerate the angular speed of rotation due to its own inertia. The former soil shifting rod will be out of contact with the screw blade prematurely, and the latter soil shifting rod will collide with the spiral blade. , causing damage to the soil cleaner

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