Horizontal Directional Drilling Rig Main Boom Swing Link Mechanism
A technology of horizontal directional drilling rig and connecting rod mechanism, which is applied in the direction of drilling equipment, earthwork drilling and production, supporting devices, etc. It can solve the structural limitations of the approach angle, the low position of the main arm, and the inability to meet the different requirements of the working state and walking state of the drilling rig at the same time and other problems, to achieve the effect of improving passing performance and large ladder inclination angle
Inactive Publication Date: 2012-02-15
GUANGXI HUALI GRP +1
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Problems solved by technology
However, because the position of its fixed hinge point is limited to meet the minimum entry angle, the position of the main arm is lower, and the increase of the approach angle is greatly restricted by the structure.
Therefore, the structural form of a single hinge point cannot meet the different requirements of the drilling rig's working state and walking state at the same time.
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[0017] A main arm swing link mechanism of a horizontal directional drilling rig, with the main arm swing cylinder 7 as the driving element, and the plane composed of the vehicle frame 1, the main arm 2, the swing arm 3, the triangular arm 4, the connecting rod 5 and the main arm tilt cylinder 6 Six-bar linkage.
[0018] The main arm 2 and the frame 1 are hinged through the swing arm 3 and the main arm tilt cylinder 6, the upper hinge point h17 of the main arm tilt cylinder 6 is hinged with the main arm 2, and the lower hinge point i18 is hinged with the frame 1 to realize the main The change of the inclination angle (entry angle) between the arm 2 and the ground;
[0019] The swing arm 3 and the triangular arm 4 are hinged to the vehicle frame 1 by the lower hinge point c12 and the hinge point e14 respectively, and can swing within a certain angle range; the limit block I8 and the limit block II9 are bars with a certain thickness, respectively Fixed on both sides of the trian...
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A main arm swing linkage mechanism of a horizontal directional drilling rig, comprising a planar six-bar linkage mechanism composed of a vehicle frame, a swing arm, a connecting rod, a triangular arm, a main arm, and a main arm tilt cylinder; the main arm and the vehicle frame are connected by a swing The arm and the main arm tilt cylinder are connected to each other, the swing arm and the triangular arm are respectively hinged to the frame by the lower hinge point c and hinge point e, can swing within a certain angle range and are connected by the connecting rod through hinge point b and hinge point d , the main arm swing cylinder is respectively hinged with the triangular arm and the frame through the hinge point f and the hinge point g, the main arm tilt cylinder controls the change of the tilt angle between the main arm and the ground, and the main arm swing cylinder is used as the driving element, and it passes through the connecting The rod mechanism controls the position of the main arm to switch between the working state and the walking state. The mechanism of the invention can realize that the main arm of the horizontal directional drilling machine can meet the minimum incident angle in the working state, and can raise the height of the main arm from the ground in the walking state, thereby improving the maneuverability of the horizontal directional drilling machine in the walking state.
Description
Technical field: [0001] The invention relates to a drilling machine component, in particular to a main arm swing link mechanism of a horizontal directional drilling machine. Background technique: [0002] The main arm of the current horizontal directional drilling rig and the vehicle frame are usually hinged by a fixed hinge point, and the angle (incident angle) between the main arm and the ground is changed by tilting the oil cylinder. The selection of its hinge point must first ensure the minimum angle between the main arm and the ground (minimum penetration angle) when the horizontal directional drilling rig is in working state. level to increase the front approach angle. However, because the position of its fixed hinge point is limited to meet the minimum entry angle, the position of the main arm is lower, and the increase of the approach angle is greatly restricted by the structure. Therefore, the structural form of a single hinge point cannot meet the different requi...
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IPC IPC(8): E21B15/04
Inventor 卢承涛
Owner GUANGXI HUALI GRP