Auxiliary winch steel rope fixing mechanism for rotary drilling rig

Abstract

The utility model relates to the field of rotary drilling rigs, and particularly discloses an auxiliary winch steel rope fixing mechanism for a rotary drilling rig, which comprises an arm support mounted on a mast, one end of the arm support is rotatably connected with the mast, the other end of the arm support is provided with a connecting part connected with a steel rope, and a spring is connected near the middle of the arm support. The end, away from the arm frame, of the spring is connected with the mast, the arm frame is in a horizontal unfolding state under the action of the spring, a fixing device is arranged on the mast, and when the arm frame overcomes the action of the spring and is attached to or close to the mast, the fixing device locks the arm frame. When the rotary drilling rig starts to work, the hook of the steel rope on the auxiliary winch is hung on the device, self-adaptive adjustment is carried out in real time through the self-adaptive capacity of the spring, and therefore safe operation of the steel rope fixing mechanism of the auxiliary winch under different construction working conditions is achieved. When the auxiliary winch works, the arm frame is fixed on the mast through the pin shaft, so that the work of the auxiliary winch is not influenced.

Description

Technical Field

[0001] This application relates to the field of rotary drilling rigs, and in particular to a steel rope fixing mechanism for an auxiliary winch of a rotary drilling rig. Background Technology

[0002] Rotary drilling rigs are widely used in construction and consist of a main winch and an auxiliary winch. The main winch is the core component that controls the vertical movement of the drill rod. At the start of drilling, the main winch lowers the drill rod, accurately delivering the drill bit to the drilling position. As drilling progresses, the drill rod needs to be continuously extended; at this time, the main winch must precisely control the lowering speed and depth of the drill rod to ensure smooth connection. After drilling is completed, the main winch is responsible for quickly and stably lifting the drill rod back to the initial position for the next hole.

[0003] The auxiliary hoist is mainly used for lifting lighter auxiliary equipment or tools, such as drill bits and casings. During the construction preparation phase, the auxiliary hoist can lift and accurately install the casing at the drilling location, preparing for subsequent drilling operations. During drilling, when it is necessary to change drill bits, the auxiliary hoist is responsible for lifting and moving the old drill bit away, and then transporting the new drill bit above the borehole for easy installation. Compared to the main hoist, the auxiliary hoist has a relatively smaller lifting weight, but it requires higher lifting precision and can flexibly perform small-scale lifting operations.

[0004] When the auxiliary winch is not in operation, the end of its steel rope is unbound, which has a certain impact on construction safety and efficiency. Utility Model Content

[0005] To address the aforementioned issues, this application provides a steel rope fixing mechanism for the auxiliary winch of a rotary drilling rig.

[0006] The technical solution provided in this application for a steel rope fixing mechanism for an auxiliary winch of a rotary drilling rig is as follows:

[0007] A steel cable fixing mechanism for a secondary winch of a rotary drilling rig is characterized by comprising a boom for mounting on a mast, one end of which is rotatably connected to the mast, and the other end having a connecting part for connecting the steel cable. A spring is connected near the middle of the boom, and the end of the spring away from the boom is connected to the mast. The boom is in a horizontally extended state under the action of the spring. A fixing device is provided on the mast, and when the boom overcomes the action of the spring and is in contact with or close to the mast, the fixing device locks the boom.

[0008] Optionally, the fixing device includes a fixing seat, which is fixed to the mast. The fixing seat has a pin hole, into which a pin is inserted. The mast has a locking hole corresponding to the pin hole.

[0009] Optionally, the pin is connected to the mounting base or mast via a connecting rope.

[0010] Optionally, the connection point between the spring and the boom is located at the midpoint of the boom on the side closer to the mast.

[0011] Optionally, a mounting base is fixed on the mast, the mounting base has a first hook hole, and a second hook hole is integrally formed on the boom. Both ends of the spring are formed into hooks and respectively hung in the first hook hole and the second hook hole.

[0012] Optionally, a connecting seat is fixed on the mast, and the boom is rotatably connected to the connecting seat.

[0013] Optionally, the connecting part has a hole structure.

[0014] In summary, this application includes at least one of the following beneficial technical effects: When the rotary drilling rig (main winch is working, while auxiliary winch is stopped) begins operation, the hook of the steel cable on the auxiliary winch is suspended on this device, and adaptive adjustment is made in real time through the adaptive capability of the spring. When the auxiliary winch is working, the boom is fixed to the mast by a pin, and the hook of the steel cable on the auxiliary winch is detached from the boom, which will not affect the operation of the auxiliary winch. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0016] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle;

[0017] Figure 3 This is a schematic diagram of the auxiliary winch in operation.

[0018] Reference numerals in the attached drawings: 1. Mast; 2. Boom; 3. Connecting seat; 4. Spring; 5. Fixing seat; 6. Pin hole; 7. Mounting seat; 8. Lock hole; 9. Pin shaft. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0020] This application discloses a steel cable fixing mechanism for an auxiliary winch of a rotary drilling rig: it includes a boom 2 for mounting on a mast 1, one end of which is rotatably connected to the mast 1, and the other end of which has a connecting part for connecting the steel cable. A connecting seat 3 is fixed on the mast 1, and the boom 2 is rotatably connected to the connecting seat 3. Here, the connecting seat 3 can be considered as part of the mast 1. Preferably, the connecting part has a hole structure, and the hook at the end of the auxiliary winch's steel cable is hung inside the hole structure.

[0021] A spring 4 is connected near the middle of the boom 2. Specifically, the connection point between the spring 4 and the boom 2 is located on the side of the boom 2 closer to the mast 1, and the end of the spring 4 away from the boom 2 is connected to the mast 1. The boom 2 is in a horizontally extended state under the action of the spring 4. A fixing device is provided on the mast 1. When the boom 2 overcomes the action of the spring 4 and is in contact with or close to the mast 1, the fixing device locks the boom 2. A mounting base 7 is fixed on the mast 1. The mounting base 7 has a first hook hole. The boom 2 has a second hook hole integrally formed. Both ends of the spring 4 form hooks that are respectively hung in the first hook hole and the second hook hole.

[0022] The fixing device includes a fixing base 5, which is fixed to the mast 1. The fixing base 5 has a pin hole 6 into which a pin 9 is inserted. The mast 1 has a corresponding locking hole 8, which, for structural simplicity, is shared with the aforementioned connecting part. The pin 9 is connected to the fixing base 5 or the mast 1 via a connecting rope. The connecting rope prevents the pin 9 from being lost.

[0023] The implementation principle of the auxiliary winch steel cable fixing mechanism for a rotary drilling rig according to this application embodiment is as follows: During actual installation, the boom must be securely installed at an appropriate position on the mast of the rotary drilling rig to ensure the stability of the entire device. When the rotary drilling rig starts operating, the hook of the steel cable on the auxiliary winch is suspended on this device, and adaptive adjustment is made in real time through the adaptive capability of the spring. When the auxiliary winch is working, fixing the boom to the mast with a pin will not affect the operation of the auxiliary winch.

[0024] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A steel rope fixing mechanism for an auxiliary winch of a rotary drilling rig, characterized in that: The device includes a boom for mounting on a mast, one end of which is rotatably connected to the mast and the other end of which has a connection for connecting steel cables. A spring is connected near the middle of the boom, and the end of the spring away from the boom is connected to the mast. The boom is in a horizontally extended state under the action of the spring. A fixing device is provided on the mast, and when the boom overcomes the action of the spring and is in contact with or close to the mast, the fixing device locks the boom.

2. The auxiliary winch steel rope fixing mechanism for a rotary drilling rig according to claim 1, characterized in that: The fixing device includes a fixing seat, which is fixed to the mast. The fixing seat has a pin hole, into which a pin is inserted. The mast has a locking hole corresponding to the pin hole.

3. The auxiliary winch steel rope fixing mechanism for a rotary drilling rig according to claim 2, characterized in that: The pin is connected to the fixed seat or mast via a connecting rope.

4. The auxiliary winch steel rope fixing mechanism for a rotary drilling rig according to claim 1, characterized in that: The connection point between the spring and the boom is located at the midpoint of the boom on the side closer to the mast.

5. The auxiliary winch steel rope fixing mechanism for a rotary drilling rig according to claim 1, characterized in that: A mounting base is fixed on the mast, and a first hook hole is provided on the mounting base. A second hook hole is integrally formed on the boom. Both ends of the spring are formed into hooks and are respectively hung in the first hook hole and the second hook hole.

6. The auxiliary winch steel rope fixing mechanism for a rotary drilling rig according to claim 1, characterized in that: A connecting seat is fixed on the mast, and the boom is rotatably connected to the connecting seat.

7. The auxiliary winch steel rope fixing mechanism for a rotary drilling rig according to claim 1, characterized in that: The connecting part has a hole structure.

Images