Automatic drill rod splicing system for low clearance
Through the chain-driven power head and drill pipe connection module, the existing engineering drill rig's structure complex and the risk of drill pipe connection is solved, and high rigidity, large stroke drill pipe delivery and automated drill pipe connection under low clearance are achieved.
Patent Information
- Application Number
- CN202422404339.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing engineering drilling rig has a complex structure and requires a complex traction system. The power head clamps from the middle of the drill rod, resulting in a short stroke, and the drill rod continuous connection process is dangerous and labor-intensive.
The chain-driven power head and drill pipe connection module are adopted. The power head moves along the mast guide rail. The drill pipe connection module clamps and transfers the drill pipe at the lower end of the mast, eliminating the trolley and winch, and realizing the drill pipe clamping from the top and delivering large strokes.
The drilling rig structure is simplified, the working intensity of on-site workers is reduced, and the delivery of high rigidity, large-stroke drill pipes under low clearance conditions is achieved.
Smart Images
Figure CN223119878U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of construction machinery, in particular to an engineering drill, and specifically to an automatic drill pipe connection system for low headroom. Background Art
[0002] The current engineering drills have several problems:
[0003] 1. The power head is driven by a traction method of a hoist and a trolley, so complex traction systems and components such as trolleys and hoists are required; this results in a relatively cumbersome structure of the entire device.
[0004] 2. The power head clamps the drill pipe from the middle, resulting in a relatively short downward stroke of the entire drill pipe and making it impossible to use drill pipes with a relatively long single length.
[0005] 3. During the process of connecting drill pipes, it is necessary to lift the drill pipe by a crane and then cooperate with several workers to connect the drill pipes. Thus, there are certain risks in the whole process and the labor intensity of the workers is very high.
[0006] For the above reasons, there are still areas for improvement in the current drills during use. Content of the Utility Model
[0007] The purpose of the utility model is to overcome the above defects and propose an automatic drill pipe connection system for low headroom.
[0008] To achieve the above purpose, the utility model is implemented as follows:
[0009] An automatic drill pipe connection system for low headroom includes a mast, a power head, and drill pipes. The power head is arranged on the mast and moves up and down along the mast through a guide rail arranged on the mast and is provided with driving force by a set of chain drive mechanism. The top of the drill pipe is connected to the power head, and under the drive of the chain drive mechanism, the power head continuously feeds the drill pipe into the ground along the guide rail on the mast from top to bottom; it also includes a drill pipe connection module located beside the running track of the power head. The drill pipe connection device is arranged at the lower end of the mast and is used for clamping the drill pipe and transferring it to the lower part of the power head, so as to continuously supply the drill pipe to the power head when the drill pipe needs to be connected.
[0010] The automatic drill pipe connection system for low headroom; the drill pipe connection module includes an orifice plate, and the orifice plate is mechanically opened and closed through an oil cylinder. A drill pipe support is arranged beside the orifice plate, and the drill pipe support is used for lifting the horizontal drill pipe and turning it into a vertical state after being clamped.
[0011] The described automatic drill pipe connection system for low headroom; the orifice plate and the drill pipe support are arranged on the same bottom support, the bottom support is located below the mast, one end of the drill pipe support is rotatably connected to the bottom support, and the other section of the drill pipe support is rotatably connected to the bottom support through an oil cylinder. In this way, the drill pipe support rotates around the bottom support under the drive of the oil cylinder.
[0012] The above-mentioned automatic drill pipe connection system for low headroom; the mast is hollow, and the chain drive mechanism for driving the power head is placed in the mast, and the chain drive mechanism is driven by a hydraulic system or a motor.
[0013] The present utility model has the following characteristics:
[0014] 1. The drill pipe connection operation is realized through the drill pipe connection module, which greatly reduces the working intensity of on-site operators and realizes all-weather operation.
[0015] 2. The crown block and the supporting hoist in the traditional mast system are omitted, which simplifies the structure of the mast system. At the same time, the circulation drill rig proposed by the present utility model can achieve a large stroke of drill pipe delivery range under the premise of low headroom.
[0016] 3. Clamp the drill pipe from the top, so that the length of a single drill pipe can reach ~; cooperate with the power head driven by a chain to achieve the drill pipe delivery ability with high rigidity and large stroke. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the working state of the circulation drill rig proposed by the present utility model Figure 1 .
[0018] Figure 2 It is a schematic diagram of the working state of the circulation drill rig proposed by the present utility model Figure 2 .
[0019] Figure 3 It is a schematic diagram of the working state of the circulation drill rig proposed by the present utility model Figure 3 .
[0020] Figure 4 It is a schematic structural diagram of the drill pipe connection device in the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope claimed by the present application.
[0022] An automated drill pipe continuous connection and circulating drill rig with a top-mounted power head, comprising a traveling chassis, a mast, a power head driven by electricity or hydraulics, and drill pipes. The mast is vertically arranged on the traveling chassis, and the power head is arranged on the mast. The power head is used to connect the drill pipes. The power head moves up and down along the mast through a guide rail arranged on the mast and is driven by a set of chain drive mechanism.
[0023] Furthermore, the mast is hollow, and the chain drive mechanism for driving the power head is placed inside the mast. The chain drive mechanism can be driven by a hydraulic source or by an electric motor.
[0024] Furthermore, the top of the drill pipe is clamped by the power head. Driven by the chain drive mechanism, the power head moves downwards along the guide rail on the mast to continuously feed the drill pipe into the ground.
[0025] The circulating drill rig also includes a drill pipe continuous connection module located beside the running track of the power head. The drill pipe continuous connection device is arranged at the lower end of the mast and is used to clamp the drill pipe and transfer it to the lower part of the power head, so as to continuously supply the drill pipe to the power head when the drill pipe needs to be continuously connected.
[0026] The above-mentioned drill pipe continuous connection module includes an orifice plate located at the lower part of the mast. The orifice plate is mechanically opened and closed by an oil cylinder. A drill pipe support is arranged beside the orifice plate. The drill pipe support is used to lift the horizontal drill pipe and turn it into a vertical state after being clamped, and then through the rotation and pressurization of the power head, the drill pipes are continuously connected. The continuous connection adopts automatic rotary connection by the rotation of the power head.
[0027] Furthermore, the orifice plate and the drill pipe support are arranged on the same bottom support. The bottom support is located below the mast. One end of the drill pipe support is rotatably connected to the bottom support, and the other end of the drill pipe support is rotatably connected to the bottom support through an oil cylinder. In this way, the drill pipe support rotates around the bottom support under the drive of the oil cylinder.
[0028] Furthermore, during use, when the drill pipe is connected to the power head, the orifice plate remains closed, so as to clamp and lift the drill pipe to be continuously connected to a vertical state through the drill pipe support, and then place the drill pipe on the orifice plate. At this time, the power head moves downwards and is connected to the drill pipe. Then the orifice plate opens, and the power head drives the connected drill pipe down into the hole for operation or continuously connects different drill pipes through the rotation of the power head.
[0029] During actual operation of the above-mentioned circulating drill rig, a hollow drill pipe can be selected as needed. By arranging a swivel on the upper part of the power head, the external mud is conveyed to the middle of the drill pipe through the swivel, so as to realize circulating drilling or hole cleaning operations.
[0030] The above are only the embodiments provided by the present application and are not used to limit the present application. Although the present application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.
Claims
1. An automated drill pipe connection system for low headroom, comprising a mast, a power head and drill pipes, wherein the power head is arranged on the mast, and is characterized in that: The power head moves up and down along the mast through the guide rail set on the mast and provides driving force through a set of chain drive mechanisms. The top of the drill pipe is connected to the power head. Driven by the chain drive mechanism, the power head continuously feeds the drill pipe into the ground from top to bottom along the guide rail on the mast. It also includes a drill pipe connection module located beside the running track of the power head. The drill pipe connection device is set at the lower end of the mast and is used to clamp and transfer the drill pipe to the lower part of the power head, so as to continuously supply the drill pipe to the power head when the drill pipe needs to be connected.
2. The automated drill pipe connection system for low headroom according to claim 1, characterized in that: The drill pipe connection module includes an orifice plate, which is mechanically opened and closed through an oil cylinder. A drill pipe support is set beside the orifice plate, and the drill pipe support is used to lift and turn the horizontal drill pipe into a vertical state after being clamped.
3. The automated drill pipe connection system for low headroom according to claim 2, characterized in that: The orifice plate and the drill pipe support are set on the same bottom support. The bottom support is located below the mast. One end of the drill pipe support is rotatably connected to the bottom support, and the other section of the drill pipe support is rotatably connected to the bottom support through an oil cylinder. In this way, the drill pipe support rotates around the bottom support under the drive of the oil cylinder.
4. The automated drill pipe connection system for low headroom according to any one of claims 1 to 3, characterized in that: The mast is hollow, and the chain drive mechanism for driving the power head is placed in the mast. The chain drive mechanism is driven by a hydraulic system or a motor.