旋挖钻机及其卷扬加压装置
Through the innovative design of the winch pressurization device for rotary drilling rigs, the wire rope routing and slack operation have been optimized, solving the problems of excessive wire rope exit angle and transportation difficulties, thereby improving equipment stability and construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 太重集团(上海)装备技术有限公司
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing rotary drilling rig winch pressurization devices in parallelogram-shaped variable amplitude rotary drilling rigs have problems such as excessive wire rope exit angle, severe wire rope fatigue wear, severe pulley edge wear, and the wire rope being too taut during transportation, which hinders the mast from being retracted.
A winch pressurization device for rotary drilling rigs was designed. The first and second pull ropes are wound around the winch drum in opposite directions. The device combines multiple fixed pulleys and double moving pulleys. A rope presser is provided, which applies pressure to the pull ropes through a spring-loaded roller. The tensioning component is mounted on the side of the first rod to optimize the routing and slack operation of the wire rope. The device is also designed with a three-section hinged mast for easy folding and storage.
It effectively reduced the wire rope exit angle, decreased fatigue wear and pulley wear, ensured construction continuity and equipment stability, solved transportation problems, and improved construction efficiency and quality.
Smart Images
Figure CN224515143U_ABST
Abstract
Claims
1. A winch pressurizing device of a rotary drilling rig, the winch pressurizing device being provided on a main body of the rotary drilling rig, characterized by, The winch pressurization device of the rotary drilling rig includes a mast connected to the main body and a winch assembly disposed on the mast, wherein: The mast includes a first rod connected to the main body, a third rod disposed above the first rod, and a second rod connected between the first rod and the third rod. One end of the second rod is hinged to the first rod via a first hinge axis, and the other end is hinged to the third rod via a second hinge axis. The winch assembly includes a tensioning assembly disposed on one side of the first pole body, a pressurizing winch assembly disposed on one side of the second pole body, a first fixed pulley disposed in the middle of the second pole body, a second fixed pulley disposed on the third pole body, a third fixed pulley disposed on the first pole body, a fourth fixed pulley and a fifth fixed pulley disposed on opposite sides of the first pole body, and a movable pulley assembly disposed on one side of the mast, wherein the movable pulley assembly is connected to a power head; The movable pulley assembly includes a pulley frame, a first movable pulley hinged within the pulley frame, and a second movable pulley; The pressurized winch assembly includes a winch drum disposed on one side of the second rod body and a rope presser disposed on the periphery of the winch drum. A first pull rope and a second pull rope are disposed between the outer periphery of the winch drum and the rope presser. One end of the first pull rope is fixed to the top of the third rod body by a fixed pin, and the other end is wound sequentially around the outer periphery of the first movable pulley and the outer periphery of the second fixed pulley and then wound in the positive direction to one end of the winch drum. One end of the second pull rope is fixed by a tensioning component, and the other end is wound sequentially around the outer periphery of the fifth fixed pulley, the outer periphery of the fourth fixed pulley, the outer periphery of the second movable pulley, the outer periphery of the third fixed pulley, and the outer periphery of the first fixed pulley and then wound in the opposite direction to the other end of the winch drum. The winch drum is connected to a drive unit. The tensioning assembly includes a tensioning cylinder fixed to one side of the first rod body, a guide pulley hinged to the free end of the tensioning cylinder, a limit seat fixed to the side of the first rod body below the guide pulley, and a pressure plate fixed on the limit seat.
2. The hoist pressurization device of a rotary excavator according to claim 1, characterized by, The rope presser includes a rope pressing shaft, a roller rotatably connected to the outside of the rope pressing shaft, brackets fixed to both ends of the winch drum, and a spring disposed between the brackets and the rope pressing shaft.
3. The hoist pressurizing device of a rotary excavator according to claim 1, characterized by A mounting plate is provided on one side of the power head, and a mounting groove is opened on the side of the mounting plate away from the power head. The pulley frame is slidably connected in the mounting groove and is fixed to the mounting plate by a mounting pin.
4. A rotary drilling rig characterized by The rotary drilling rig includes the winch pressurization device as described in any one of claims 1-3.