Sliding frame, power device and rotary drilling rig
A power device and sliding frame technology, which is applied in the field of sliding frame, power device and rotary drilling rig, can solve the problems of reduced service life of connecting parts, wear of the pin hole of the sliding frame, and easy formation of waist-shaped holes, etc., to achieve extended Long service life, not easy to move and rotate, avoid severe vibration
Inactive Publication Date: 2015-02-18
SANY HEAVY IND CO LTD (CN)
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Problems solved by technology
[0004] The defect of the existing sliding frame is that: the sliding plate is connected with a horizontal pin shaft. When the power head presses down and lifts the drill upward, the pin bearing is subjected to vertical pressure and shear force, and the pin shaft Frequent and severe extrusion occurs between the pin hole of the carriage and the pin hole of the carriage is severely worn, and the service life of the connecting piece is reduced; moreover, waist-shaped holes are easily formed after a period of use, which leads to the shaking of the carriage
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Embodiment Construction
[0036] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0037] The basic idea of the present invention is: by adjusting the structure of the mounting part of the sliding frame, changing the arrangement of the sliding frame and the connecting parts, thereby improving the reliability of the connection between the sliding frame and the connecting plate and the power box. The preferred embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the descriptions of the vertical and horizontal directions in this application are all based on the working state of the sliding plate as a reference, and the length direction is uniform. is the direction of motion in the slip working state.
[0038] Figure 1 to Figure 2 The structure of the sliding frame provided by Embodiment 1 of the present...
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The invention discloses a sliding frame, a power device and a rotary drilling rig. The sliding frame comprises a main body portion, an upper installation portion and a lower installation portion, the upper installation portion and the lower installation portion are arranged on the main body portion, an upper installation hole is arranged on the upper installation portion, a lower installation hole is arranged on the lower installation portion, and axis of the upper installation hole and / or the lower installation hole is distributed along the vertical direction. Therefore, the distributing direction of a connecting piece is along the vertical direction to be parallel to the axial direction of the connecting piece when the sliding frame is connected with a gusset plate or a power box. The connecting piece has connecting functions, borne positive pressure and shear force are small, and stress is stable, so that sliding frame is not easy to damage, long in service life and high in work reliability.
Description
technical field [0001] The invention relates to the field of engineering machinery, in particular to a sliding frame, a power device and a rotary drilling rig. Background technique [0002] Rotary drilling rig is a kind of construction machine used for hole forming in construction foundation engineering. It is mainly suitable for the construction of sandy soil, cohesive soil, silty soil and other soil layers. It is widely used in foundation construction. [0003] The power unit is an important part of the rotary drilling rig, which provides torque for the drilling construction of the drilling rig. The power unit of the rotary drilling rig includes: hydraulic motor, power box, reducer, skid frame, connecting plate, etc. The skid frame is slidably arranged on the mast of the rotary drilling rig, and is used to drive the power head to ascend and descend. Specifically, the existing sliding frame is a box-type welded joint structure, which specifically includes: a main body an...
Claims
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IPC IPC(8): E21B3/02
Inventor 朱朝阳于卓伟曾颖皓
Owner SANY HEAVY IND CO LTD (CN)