Low-clearance drilling tower structure and low-clearance under-reaming pile drilling rig

Abstract

The utility model belongs to the technical field of drilling machine, concretely relates to a low clearance drilling tower structure and low clearance bite pile drilling machine. The low clearance drilling tower structure in the utility model includes base, top frame and a plurality of stands, a plurality of stands extend along the axial direction of drill rod, the bottom of stand is connected with base, the top of stand is connected with top frame. The power assembly is located between base and top frame, the output end of power assembly is used for connecting drill rod and driving drill rod to rotate. The fixed end of power assembly is connected with stand through connecting piece, connecting piece can reciprocate along the extension direction of stand. The fixed end of lifting assembly is connected with base, the output end of lifting assembly is connected with power assembly, is used for driving power assembly to lift. The low clearance drilling tower structure in the technical scheme can effectively reduce the drill rod deflection caused by power assembly vibration or shaking, thereby significantly improving the drilling quality.

Description

Technical Field

[0001] This utility model belongs to the field of drilling rig technology, specifically relating to a low headroom drilling tower structure and a low headroom interlocking pile drilling rig. Background Technology

[0002] Low headroom drilling rigs are engineering machinery equipment specifically designed for drilling operations in confined spaces. They are mainly used to solve the problem that traditional drilling rigs cannot operate in low headroom environments due to height limitations.

[0003] The existing low-headroom drilling rig uses vertical pressurization of the power assembly. During construction, the uncontrollable shaking of the power assembly can easily cause deviation, further affecting the quality of hole formation, which is a defect.

[0004] Therefore, there is an urgent need to provide a low-headroom drilling tower structure and a low-headroom interlocking pile drilling rig that can ensure the stable lifting and lowering of the powertrain to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to at least solve the problem of drill pipe deflection caused by powertrain sway. This purpose is achieved through the following technical solution: The first aspect of this utility model provides a low-headroom drilling rig structure, connected with a drill rod, the low-headroom drilling rig structure comprising: The drilling rig body includes a base, a top frame, and multiple columns. The multiple columns extend along the axial direction of the drill pipe. The bottom of each column is connected to the base, and the top of each column is connected to the top frame. A powertrain is located between the base and the top frame, and the output end of the powertrain is used to connect to the drill rod and drive the drill rod to rotate. A connector is provided, wherein the fixed end of the powertrain is connected to the column via the connector, and the connector is capable of reciprocating along the extension direction of the column; A lifting assembly, wherein the fixed end of the lifting assembly is connected to the base and the output end of the lifting assembly is connected to the powertrain, for driving the powertrain to lift.

[0006] In this technical solution, the low-headroom drill tower structure uses a lifting assembly to drive the powertrain to rise and fall. Additionally, the powertrain is connected to multiple columns extending along the drill pipe height direction via connectors. These columns provide stable guidance for the powertrain's lifting and lowering movement. Because the powertrain is constrained by multiple connectors, any swaying or shaking it generates can be effectively absorbed and suppressed by the columns, greatly enhancing the stability of the powertrain. This reduces drill pipe deflection caused by powertrain vibration or shaking, significantly improving drilling quality.

[0007] In addition, the low headroom drilling tower structure of this utility model may also have the following additional technical features: In some embodiments of this utility model, the connector includes a sleeve portion and a connecting portion. The sleeve portion is sleeved on the column and can reciprocate along the extension direction of the column. The connecting portion is connected to the fixed end of the power assembly.

[0008] In some embodiments of this utility model, the connecting part is connected to the fixed end of the powertrain via a threaded connector.

[0009] In some embodiments of this utility model, each of the sockets is connected to two connecting parts, the two connecting parts are arranged circumferentially between the sockets, and each connecting part is connected to the fixed end of the power assembly.

[0010] In some embodiments of this utility model, the top frame includes multiple crossbeams, which are connected end to end to form a quadrilateral frame structure.

[0011] In some embodiments of this utility model, there are multiple columns, and the multiple columns are connected one by one to multiple diagonals of the frame structure.

[0012] In some embodiments of this utility model, the lifting assembly includes a first hydraulic rod, the power assembly is connected to the first hydraulic rod, and the top frame is provided with a clearance hole that allows the first hydraulic rod to pass through.

[0013] In some embodiments of this utility model, the lifting assembly is provided in two sets, and the two sets of lifting assemblies are respectively located on both sides of the powertrain.

[0014] In a second aspect, this utility model provides a low-headroom interlocking pile drilling rig, which includes a drilling rig body and a low-headroom drilling tower structure as described in the above embodiments, wherein the low-headroom drilling tower structure is rotatably connected to the drilling rig body.

[0015] In some embodiments of this utility model, the low headroom drilling tower structure further includes a second hydraulic rod, the fixed end of which is rotatably connected to the drilling rig body, and the output end of which is rotatably connected to the drilling rig body. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1A schematic diagram of a low-headroom drilling rig structure according to an embodiment of the present invention is shown. Figure 2 A schematic diagram of the structure of a low-headroom interlocking pile drilling rig (in non-working state) according to an embodiment of the present invention is shown. Figure 3 A schematic diagram of the structure of a low-headroom interlocking pile drilling rig (in working condition) according to an embodiment of the present invention is shown.

[0017] The labels in the attached diagram are as follows: 1000 Low headroom rig structure; 1100 Rig body; 1110 Base; 1120 Top frame; 1121 Crossbeam; 1130 Column; 1200 Power assembly; 1300 Connector; 1310 Sleeve; 1320 Connector; 1400 Lifting assembly; 2000, Drilling rig body; 3000, Second hydraulic rod. Detailed Implementation

[0018] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0019] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0020] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0021] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0022] Figure 1 A schematic diagram of a low-headroom drilling rig structure 1000 according to an embodiment of the present invention is shown. Figure 1 As shown, this utility model proposes a low-headroom drilling rig structure 1000, connected with drill pipe. The low-headroom drilling rig structure 1000 includes a drilling rig body 1100, a power assembly 1200, a connector 1300, and a lifting assembly 1400. The drilling rig body 1100 includes a base 1110, a top frame 1120, and multiple columns 1130. The multiple columns 1130 extend along the axial direction of the drill pipe. The bottom of the columns 1130 is connected to the base 1110, and the top of the columns 1130 is connected to the top frame 1120. The power assembly 1200 is located between the base 1110 and the top frame 1120. The output end of the power assembly 1200 is used to connect to the drill rod and drive the drill rod to rotate. The fixed end of the power assembly 1200 is connected to the column 1130 through the connector 1300. The connector 1300 can reciprocate along the extension direction of the column 1130. The fixed end of the lifting assembly 1400 is connected to the base 1110. The output end of the lifting assembly 1400 is connected to the power assembly 1200 and is used to drive the power assembly 1200 to lift.

[0023] In this technical solution, the low-headroom drill tower structure 1000 drives the power assembly 1200 to rise and fall via a lifting component 1400. Additionally, the power assembly 1200 is connected to multiple columns 1130 extending along the drill pipe height direction via connectors 1300. The columns 1130 provide stable guidance for the rising and falling motion of the power assembly 1200. Because the power assembly 1200 is constrained by the multiple connectors 1300, any swaying or shaking it generates can be effectively absorbed and suppressed by the columns 1130, greatly enhancing the stability of the power assembly 1200. This reduces drill pipe deflection caused by vibration or shaking of the power assembly 1200, significantly improving drilling quality.

[0024] Furthermore, the connector 1300 includes a sleeve portion 1310 and a connecting portion 1320. The sleeve portion 1310 is sleeved on the column 1130 and can reciprocate along the extension direction of the column 1130. The connecting portion 1320 is connected to the fixed end of the powertrain 1200.

[0025] By employing a structure where the sleeve portion 1310 is fitted onto the column 1130, the contact area between the connector 1300 and the column 1130 can be maximized, thereby significantly reducing the vibration of the power assembly 1200 and its sway. Furthermore, increasing the length of the sleeve portion 1310 increases the connection stability between the connector 1300 and the column 1130, thus improving the overall stability of the low-headroom drilling rig structure 1000. Optionally, the connector portion 1320 has a contact surface that conforms to the outer wall of the fixed end of the power assembly 1200. Increasing this contact surface, i.e., increasing the contact area between the connector portion 1320 and the fixed end of the power assembly 1200, effectively provides connection stability, thereby reducing the loosening or swaying of the power assembly 1200.

[0026] Furthermore, the connecting part 1320 is connected to the fixed end of the powertrain 1200 via a threaded connector 1300.

[0027] Optionally, the threaded connector 1300 can be a screw or bolt. Using the threaded connector 1300 for connection offers ease of operation, lower cost, and higher reliability.

[0028] Optionally, each socket 1310 is connected to two connecting portions 1320, which are spaced apart circumferentially along the socket 1310. Each connecting portion 1320 is connected to a fixed end of the powertrain 1200. Preferably, each connecting portion 1320 is connected to the fixed end of the powertrain 1200 via a plurality of threaded connectors 1300, which are equidistantly spaced along the extension direction of the column 1130. Understandably, by providing a plurality of threaded connectors 1300, the connection strength can be effectively improved, and the connection stability between components can be enhanced.

[0029] Furthermore, the top frame 1120 includes multiple crossbeams 1121, which are connected end to end to form a frame structure.

[0030] The top frame 1120 adopts a frame structure, which can effectively reduce the weight of the low-headroom drilling rig structure 1000, thereby making the movement of the low-headroom drilling rig structure 1000 more convenient and reducing the energy consumption of the drilling rig. For example, there are four crossbeams 1121, which are connected end-to-end to form a quadrilateral frame structure. The base 1110 is a quadrilateral plate structure, thus adapting the base 1110 to the structure of the top frame 1120. Optionally, positioning grooves are provided on the crossbeams 1121, and the top of the column 1130 is inserted into the positioning groove, thereby ensuring a reliable connection between the column 1130 and the crossbeams 1121.

[0031] Furthermore, there are multiple columns 1130, which are connected one by one to multiple diagonals of the frame structure.

[0032] The diagonal point refers to the connection point of two adjacent crossbeams 1121. By setting a column 1130 at each diagonal point of the frame structure, the powertrain 1200 can be balanced in the circumferential direction, effectively mitigating the swaying or vibration of the powertrain 1200. For example, when the top frame 1120 is a quadrilateral frame structure, the number of columns 1130 is four. In other embodiments, the top frame 1120 can also be a triangular or pentagonal frame structure, and the shape of the base 1110 and the number of columns 1130 are set according to the structure of the top frame 1120.

[0033] Furthermore, the lifting assembly 1400 includes a first hydraulic rod, the powertrain 1200 is connected to the first hydraulic rod, and the top frame 1120 is provided with a clearance hole that allows the first hydraulic rod to pass through.

[0034] The clearance hole prevents the first hydraulic rod from interfering with the crossbeam 1121. When the first hydraulic rod drives the power assembly 1200 to move upward, the top of the first hydraulic rod will pass through the clearance hole.

[0035] Furthermore, two sets of lifting components 1400 are provided, with each set located on one side of the powertrain 1200. By providing a lifting component 1400 on each side of the powertrain 1200, the force on the powertrain 1200 can be balanced, preventing the powertrain 1200 from tilting due to uneven force during ascent or descent. Of course, in other embodiments, a lifting component 1400 can also be provided on each of the four sides of the powertrain 1200, thereby ensuring that the powertrain 1200 can always maintain vertical movement, thus ensuring the quality of the hole formation.

[0036] Furthermore, Figure 2 A schematic diagram of the structure of a low-headroom interlocking pile drilling rig (in non-working state) according to an embodiment of the present invention is shown. Figure 3 A schematic diagram of a low-headroom interlocking pile drilling rig (in working condition) according to an embodiment of the present invention is shown. See also Figure 2 and Figure 3 This technical solution also provides a low-headroom interlocking pile drilling rig, including a second hydraulic rod 3000 and the aforementioned low-headroom drill tower structure 1000, which is rotatably connected to the drilling rig body 2000. Understandably, in the working state, i.e., when drilling is required, the low-headroom drill tower structure 1000 needs to rotate from a position above the drilling rig body 2000 to the front of the drilling rig body 2000, with the drill rod pointing vertically downwards. In the non-working state, the low-headroom drill tower structure 1000 needs to be retracted to above the drilling rig body 2000 to facilitate the overall movement of the drilling rig.

[0037] Furthermore, the low headroom drilling rig structure 1000 also includes a second hydraulic rod 3000, the fixed end of which is rotatably connected to the drilling rig body 2000, and the output end of which is rotatably connected to the drilling rig body 2000.

[0038] This technical solution uses a second hydraulic rod (3000) to drive the low-headroom drilling rig structure (1000) to rotate. The hydraulic rod can withstand a large working load, and its stroke length can be set according to actual needs to meet the requirements of different working scenarios. Furthermore, the hydraulic rod has a fast response speed, high precision, sensitive action, and smooth operation, enabling it to complete actions quickly and is suitable for high-precision operations. In addition, the hydraulic rod has high reliability, a simple structure, and a long service life, making it suitable for harsh working environments.

[0039] Optionally, there can be two second hydraulic rods 3000, which are spaced apart along the width of the drilling rig body 2000. By setting two second hydraulic rods 3000, the motion stability of the low-headroom drilling tower structure 1000 can be ensured, preventing it from tilting during rotation.

[0040] The working process of the low-headroom interlocking pile drilling rig provided in this technical solution is as follows: The manual start device controls the rotation of the track wheels, using them to move the low-headroom interlocking pile drilling rig to the work site. Before work begins, the second hydraulic rod 3000 is extended, allowing the base 1110 to support the ground and stabilize the low-headroom drilling tower structure 1000 as a whole, ensuring it reaches its designated position. Figure 2 state.

[0041] After the low-headroom interlocking pile drilling rig stabilizes, the control assembly is operated to move the power assembly 1200 vertically downward along the column 1130, and the power assembly 1200 is used to control the drill rod rock wall for drilling.

[0042] After drilling is completed, the second hydraulic rod 3000 is retracted to achieve [the desired position / level]. Figure 3 The status was changed, and the worker left the work area.

[0043] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A low-headroom drilling rig structure, connected with drill rods, characterized in that, The low-headroom drilling rig structure includes: The drilling rig body (1100) includes a base (1110), a top frame (1120), and a plurality of columns (1130). The plurality of columns (1130) extend along the axial direction of the drill pipe. The bottom of the column (1130) is connected to the base (1110), and the top of the column (1130) is connected to the top frame (1120). A power assembly (1200) is located between the base (1110) and the top frame (1120), and the output end of the power assembly (1200) is used to connect to the drill rod and drive the drill rod to rotate; The connector (1300) is used to connect the fixed end of the power assembly (1200) to the column (1130). The connector (1300) is capable of reciprocating along the extension direction of the column (1130). A lifting assembly (1400) is provided, with its fixed end connected to the base (1110) and its output end connected to the power assembly (1200) for driving the power assembly (1200) to lift.

2. The low-headroom drilling rig structure according to claim 1, characterized in that, The connector (1300) includes a sleeve portion (1310) and a connecting portion (1320). The sleeve portion (1310) is sleeved on the column (1130) and can reciprocate along the extension direction of the column (1130). The connecting portion (1320) is connected to the fixed end of the power assembly (1200).

3. The low-headroom drilling rig structure according to claim 2, characterized in that, The connecting part (1320) is connected to the fixed end of the powertrain (1200) via a threaded connector (1300).

4. The low-headroom drilling rig structure according to claim 2, characterized in that, Each of the sockets (1310) is connected to two connecting parts (1320), the two connecting parts (1320) are arranged circumferentially spaced along the socket (1310), and each connecting part (1320) is connected to the fixed end of the power assembly (1200).

5. The low-headroom drilling rig structure according to claim 1, characterized in that, The top frame (1120) includes multiple crossbeams (1121), which are connected end to end to form a frame structure.

6. The low-headroom drilling rig structure according to claim 5, characterized in that, The number of columns (1130) is multiple, and the multiple columns (1130) are connected one by one to multiple diagonals of the frame structure.

7. The low-headroom drilling rig structure according to claim 1, characterized in that, The lifting assembly (1400) includes a first hydraulic rod, the power assembly (1200) is connected to the first hydraulic rod, and the top frame (1120) is provided with a clearance hole that allows the first hydraulic rod to pass through.

8. The low-headroom drilling rig structure according to any one of claims 1-7, characterized in that, The lifting assembly (1400) is provided in two sets, and the two sets of lifting assemblies (1400) are located on both sides of the powertrain (1200).

9. A low-headroom interlocking pile drilling rig, characterized in that, It includes a drilling rig body (2000) and a low-headroom drilling tower structure (1000) as described in any one of claims 1-8, wherein the low-headroom drilling tower structure (1000) is rotatably connected to the drilling rig body (2000).

10. The low-headroom interlocking pile drilling rig according to claim 9, characterized in that, The low headroom drilling tower structure (1000) also includes a second hydraulic rod (3000), the fixed end of which is rotatably connected to the drilling rig body (2000), and the output end of which is rotatably connected to the drilling rig body (2000).

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