A rotary drilling rig and its rotary table device

Abstract

This application provides a rotary drilling rig and its turntable device. A horizontal rotating shaft connected to the drilling rig mast enables horizontal swinging of the mast, a pitch rotating shaft connected to the mast enables pitching of the mast, and a hinged shaft rotatably connected to the pitch rotating shaft enables mast erection and inversion via a luffing mechanism, thereby achieving spatial displacement of the drilling rig mast. Furthermore, at least a portion of the horizontal rotating shaft and at least a portion of the pitch rotating shaft are located inside the drilling rig mast, thereby reducing the overall height of the drilling rig during transport to comply with relevant national transportation regulations. This avoids disassembly and installation during transport, improving transportation efficiency and reducing costs. It also prevents damage to various components of the rotary drilling rig caused by repeated disassembly and installation, thus extending the service life of the rotary drilling rig.

Description

Technical Field

[0001] This application relates to the field of rotary drilling rig technology, specifically to a rotary drilling rig and its rotary table device. Background Technology

[0002] Rotary drilling rigs are mainly used for the construction of extra-large bridge piles for various highways and railways, as well as the foundation piles for special structures in other large buildings. They are the primary tools for forming pile foundation holes. Due to their high power, fast drilling speed, high degree of automation, large borehole diameter, accurate positioning, and high work efficiency, rotary drilling rigs are becoming increasingly advantageous in construction.

[0003] The rotary table, as a key component of a rotary drilling rig, plays a crucial role in supporting the mast, connecting the luffing mechanism and the mast, enabling the mast to tilt left and right, and bearing various impact loads during construction. Furthermore, rotary drilling rigs are large-scale construction machinery, and their excessive size (especially their height) does not comply with relevant national transportation regulations. During relocation, the overall size is typically reduced by disassembling the drilling tools, drill rods, and accessories to meet transportation requirements. However, the resulting disassembly and installation time and transportation costs not only reduce transportation and work efficiency but also impact customer profits. Summary of the Invention

[0004] In view of this, the embodiments of this application aim to provide a rotary drilling rig and its turntable device. By setting a horizontal rotating shaft connected to the drilling rig mast to achieve horizontal rotation of the drilling rig mast, setting a pitch rotating shaft connected to the drilling rig mast to achieve pitch movement of the drilling rig mast, and setting a hinge shaft rotatably connected to the pitch rotating shaft to achieve mast erection and inversion through a luffing mechanism, thereby realizing spatial displacement of the drilling rig mast; and by setting at least a portion of the horizontal rotating shaft and at least a portion of the pitch rotating shaft inside the drilling rig mast, the overall height of the drilling rig during transportation can be reduced to comply with relevant national transportation regulations. This avoids disassembly and installation during transportation, improving transportation efficiency and reducing transportation costs. It also avoids damage to various components of the rotary drilling rig caused by repeated disassembly and installation, thereby increasing the service life of the rotary drilling rig.

[0005] According to one aspect of this application, an embodiment of this application provides a rotary drilling rig turntable device, comprising: a horizontal rotating shaft connected to the drilling rig mast, configured to realize the horizontal swing of the drilling rig mast; a pitch rotating shaft connected to the drilling rig mast, configured to realize the pitch rotation of the drilling rig mast; and a hinge shaft rotatably connected to the pitch rotating shaft, configured to realize the mast erection and mast tilting actions of the drilling rig mast; wherein at least a portion of the horizontal rotating shaft and at least a portion of the pitch rotating shaft are disposed inside the drilling rig mast.

[0006] In one embodiment, the hinge axis is disposed inside the pitch axis.

[0007] In one embodiment, a pad is provided between the pitch axis and the drilling rig mast.

[0008] In one embodiment, the pad includes a removable pad.

[0009] In one embodiment, the pad is interference-fitted with the pitch axis.

[0010] In one embodiment, the horizontal pivot includes a hollow structure, and the hinge shaft passes through the hollow structure.

[0011] In one embodiment, the diameter of the horizontal pivot is greater than 1.5 times the diameter of the hinge shaft.

[0012] In one embodiment, the pitch axis has a square cross-sectional shape along a direction perpendicular to the axis.

[0013] In one embodiment, a bushing is provided between the horizontal rotation axis and the pitch rotation axis.

[0014] In one embodiment, the horizontal shaft is bolted to the drilling mast.

[0015] According to another aspect of this application, one embodiment of this application provides a rotary drilling rig, comprising: a drilling rig support platform; a drilling rig assembly disposed on the drilling rig support platform; and a turntable device disposed between the drilling rig assembly and the drilling rig support platform, the turntable device including the turntable device of the rotary drilling rig described in any of the preceding claims.

[0016] In one embodiment, the rotary drilling rig further includes a luffing mechanism, which is disposed between the turntable device and the drilling rig support platform, and is connected to the hinge shaft.

[0017] In one embodiment, the luffing mechanism includes multiple hinged links.

[0018] In one embodiment, the drilling rig assembly includes: the drilling rig mast; and a drill rod disposed on the drilling rig mast; wherein the drilling rig mast has an opening on the side near the rotary table device, and at least a portion of the horizontal rotating shaft and at least a portion of the pitch rotating shaft are disposed inside the opening.

[0019] In one embodiment, a reinforcing plate is provided on the inner side of the opening.

[0020] In one embodiment, the rotary drilling rig further includes a transport component disposed below the drilling rig support platform and configured to transport the drilling rig support platform, the drilling rig components, and the rotary table device.

[0021] In one embodiment, the transport component includes tracked wheels.

[0022] This application provides a rotary drilling rig and its turntable device. By setting a horizontal rotating shaft connected to the drilling rig mast to achieve horizontal swinging of the mast, setting a pitch rotating shaft connected to the mast to achieve pitching of the mast, and setting a hinge shaft rotatably connected to the pitch rotating shaft to achieve mast erection and inversion via a luffing mechanism, the spatial displacement of the drilling rig mast is achieved. Furthermore, by placing at least a portion of the horizontal rotating shaft and at least a portion of the pitch rotating shaft inside the drilling rig mast, the overall height of the drilling rig during transport can be reduced to comply with relevant national transportation regulations. This avoids disassembly and installation during transportation, improving transportation efficiency and reducing transportation costs. It also avoids damage to various components of the rotary drilling rig caused by repeated disassembly and installation, thereby extending the service life of the rotary drilling rig. Attached Figure Description

[0023] Figure 1 The diagram shown is a structural schematic of the rotary drilling rig's turntable device according to an embodiment of this application.

[0024] Figure 2 The diagram shown is a structural schematic of the rotary drilling rig's turntable device according to another embodiment of this application.

[0025] Figure 3 The diagram shown is a structural schematic of a rotary drilling rig in its transportation state according to an embodiment of this application.

[0026] Figure 4 The diagram shown is a structural schematic of a rotary drilling rig in operation according to an embodiment of this application. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] Furthermore, in exemplary embodiments, since the same reference numerals denote the same components having the same structure or the same steps of the same method, if one embodiment has been described by way of example, then in other exemplary embodiments only structures or methods different from those described in the embodiment will be described.

[0029] Throughout the specification and claims, when a component is described as being “connected” to another component, that component may be “directly connected” to the other component or “electrically connected” to the other component via a third component. Furthermore, unless explicitly stated otherwise, the term “comprising” and its corresponding terms should be understood only to include the stated component and not to exclude any other component.

[0030] Figure 1 The diagram shown is a structural schematic of the rotary drilling rig's turntable device according to an embodiment of this application. Figure 1 As shown, the turntable device includes: a horizontal rotating shaft 31, a pitch rotating shaft 32, and a hinge shaft 33; wherein, the horizontal rotating shaft 31 is connected to the drilling mast to realize the horizontal swing of the drilling mast, the pitch rotating shaft 32 is connected to the drilling mast to realize the pitch rotation of the drilling mast, and the hinge shaft 33 is rotatably connected to the pitch rotating shaft 32 to realize the erection and inversion of the drilling mast; at least a portion of the horizontal rotating shaft 31 and at least a portion of the pitch rotating shaft 32 are disposed inside the drilling mast.

[0031] After a rotary drilling rig has finished its work, it needs to be transported to a designated storage location. Before any work begins, the rig also needs to be transported to the work site. Because rotary drilling rigs are large to medium-sized machines, the mast and corresponding drill rod must meet certain strength requirements, i.e., a certain thickness (vertical width), to meet the demands of their operation. This results in a relatively high overall height of the rotary drilling rig during transport, which does not comply with relevant national transportation regulations. Therefore, during transport, some components or equipment of the rotary drilling rig need to be disassembled and transported separately. These components or equipment are then reassembled upon arrival at the designated location before the rotary drilling rig can begin operation. Obviously, such operation is quite cumbersome. It not only requires a lot of time and manpower to disassemble and install parts, leading to increased time and labor costs and reduced work efficiency, but also causes wear and tear on the disassembled and installed parts due to repeated disassembly and installation. For example, the screws will wear down due to prolonged tightening, which will indirectly affect the overall working condition of the rotary drilling rig, and consequently reduce its working effect and service life.

[0032] To address the aforementioned problems, this application proposes a rotary drilling rig turntable device. Utilizing the horizontal rotating shaft 31, pitch rotating shaft 32, and hinge shaft 33 of the turntable device, the drilling rig mast can achieve horizontal swinging, pitch rotation, and mast erection and inversion movements. This enables spatial movement of the drilling rig mast and the drill rod mounted on it, thereby switching the drilling rig between working and transport states. Furthermore, at least a portion of the horizontal rotating shaft 31 and at least a portion of the pitch rotating shaft 32 are disposed inside the drilling rig mast, meaning that the horizontal rotating shaft 31, pitch rotating shaft 32, and drilling rig mast are vertically positioned. A small overlap reduces the combined height of the rotating shaft assembly and the drilling rig mast, thus lowering the overall height of the rotary drilling rig to meet relevant national road transport regulations. This allows the rotary drilling rig to be transported without disassembling its components, saving time and labor costs associated with disassembling and installing parts, improving transportation efficiency, reducing transportation costs, and avoiding multiple disassemblies and reassemblies of mechanical parts. This improves the fit between mechanical components, thereby enhancing the working condition and performance of the rotary drilling rig. In one embodiment, at least half of the horizontal rotating shaft 31 and at least half of the pitch rotating shaft 32 are located inside the drilling rig mast, meaning the hinge points of the horizontal rotating shaft 31 and the pitch rotating shaft 32 are located inside the drilling rig mast. By placing at least half of the horizontal rotating shaft 31 and at least half of the pitch rotating shaft 32 inside the drilling rig mast, the height overlap between the horizontal rotating shaft 31, the pitch rotating shaft 32, and the drilling rig mast can be further increased, thereby further reducing the overall height of the rotary drilling rig. It should be understood that the dimensions of the horizontal shaft 31 and the pitch shaft 32 inside the drilling rig mast can be selected according to the needs of the actual application scenario. As long as the dimensions of the horizontal shaft 31 and the pitch shaft 32 inside the drilling rig mast meet the relevant national transportation regulations when the drilling rig is in transport, the specific dimensions of the horizontal shaft 31 and the pitch shaft 32 inside the drilling rig mast are not limited in this application embodiment.

[0033] This application provides a rotary drilling rig turntable device. A horizontal rotating shaft connected to the drilling rig mast enables horizontal swinging of the mast, a pitch rotating shaft connected to the mast enables pitching of the mast, and a hinge shaft rotatably connected to the pitch rotating shaft enables mast erection and inversion via a luffing mechanism, thus achieving spatial displacement of the drilling rig mast. Furthermore, at least a portion of the horizontal rotating shaft and at least a portion of the pitch rotating shaft are located inside the drilling rig mast, thereby reducing the overall height of the drilling rig during transport to comply with relevant national transportation regulations. This avoids disassembly and installation during transport, improving transportation efficiency and reducing costs. It also prevents damage to various components of the rotary drilling rig caused by repeated disassembly and installation, thereby extending the service life of the rotary drilling rig.

[0034] In one embodiment, such as Figure 1 As shown, the hinge shaft 33 can be housed inside the pitch shaft 32. By placing the hinge shaft 33 inside the pitch shaft 32, the hinge shaft 33 and the pitch shaft 32 are rotatably connected to achieve the erection and lowering of the drilling rig mast, while minimizing the superposition of their heights, thus reducing the overall height of the rotary drilling rig. In one embodiment, a bushing 35 can be provided between the hinge shaft 33 and the pitch shaft 32. By providing the bushing 35 between the hinge shaft 33 and the pitch shaft 32, the pitch shaft 32 is fixedly connected to the bushing 35, and the bushing 35 is rotatably connected to the hinge shaft 33. The bushing 35 allows for a movable connection between the hinge shaft 33 and the pitch shaft 32 with their relative positions remaining unchanged, thereby enabling the erection and lowering of the drilling rig mast through a luffing mechanism or similar means. Furthermore, the presence of lubricating oil between the bushing 35 and the hinge shaft 33 not only lubricates the bushing 35 and the hinge shaft 33 but also dissipates heat, reduces friction, and thus extends service life. Additionally, by providing the bushing 35 between the hinge shaft 33 and the pitch shaft 32, direct friction between the two shafts can be avoided, reducing wear and tear and lowering costs. It should be understood that the relative positions of the hinge shaft 33 and the pitch shaft 32 can be selected according to the needs of the actual application scenario. For example, the hinge shaft 33 and the pitch shaft can be arranged parallel to each other and connected by a movable shaft. As long as the selected relative positions of the hinge shaft 33 and the pitch shaft 32 can satisfy the relative rotation of the hinge shaft 33 and the pitch shaft 32, the specific positions of the hinge shaft 33 and the pitch shaft 32 are not limited in this application.

[0035] In one embodiment, such as Figure 1As shown, a pad 34 can be installed between the pitch shaft 32 and the drilling mast. Since the drilling mast rotates relative to the pitch shaft 32, prolonged rotation causes significant wear on the pitch shaft 32. As wear increases, the connection gap between the pitch shaft 32 and the drilling mast widens, resulting in a loose and unsmooth fit between them, thus affecting the working efficiency and accuracy of the rotary drilling rig. To address this problem, this embodiment of the application provides a pad 34 between the pitch shaft 32 and the drilling mast. The wear-resistant properties of the pad protect the pitch shaft 32, preventing wear from prolonged pitch rotation. In a further embodiment, the pad 34 may include a removable pad. By providing a removable pad 34, after prolonged use and significant wear, the fit between the pitch shaft 32 and the drilling rig mast can be easily restored by replacing the pad 34. This improves the service life and working accuracy of the pitch shaft 32 while minimizing maintenance and replacement costs. In one embodiment, the pad 34 and the pitch shaft 32 can be an interference fit. An interference fit simplifies the connection between the pad 34 and the pitch shaft 32 and also facilitates easy removal of the pad 34 during replacement. It should be understood that the embodiments of this application can select different assembly forms between the pad 34 and the pitch shaft 32 according to the needs of the actual application scenario, as long as the selected assembly form achieves a fixed connection between the pad 34 and the pitch shaft 32 and facilitates the replacement of the pad 34. The embodiments of this application do not limit the specific assembly form between the pad 34 and the pitch shaft 32.

[0036] In one embodiment, such as Figure 1As shown, a bushing 35 can be installed between the horizontal shaft 31 and the pitch shaft 32. By installing the bushing 35 between the horizontal shaft 31 and the pitch shaft 32, the pitch shaft 32 is fixedly connected to the bushing 35, while the bushing 35 is rotatably connected to the horizontal shaft 31. The bushing 35 allows for a movable connection where the relative positions of the horizontal shaft 31 and the pitch shaft 32 remain unchanged, thereby enabling the horizontal swinging motion of the drilling rig mast. Furthermore, lubricating oil is provided between the bushing 35 and the horizontal shaft 31, which not only lubricates the bushing 35 and the horizontal shaft 31 but also dissipates heat and reduces friction, thus extending the service life of both the horizontal shaft 31 and the bushing 35. Additionally, by installing the bushing 35 between the horizontal shaft 31 and the pitch shaft 32, direct friction between them can be avoided, reducing wear on both shafts and lowering costs. Furthermore, by setting the bushing 35, external debris can be prevented from entering the horizontal shaft 31 and the pitch shaft 32 and affecting their rotation, thereby improving the rotational flexibility of the horizontal shaft 31 and the pitch shaft 32, reducing wear on the horizontal shaft 31 and the pitch shaft 32, and increasing their service life.

[0037] In one embodiment, the horizontal shaft 31 and the drilling mast can be connected by bolts. Bolts can securely connect the horizontal shaft 31 and the drilling mast. It should be understood that the connection method between the horizontal shaft 31 and the drilling mast can be selected according to the needs of the actual application scenario, such as a hinge, as long as the selected connection method allows for the horizontal swinging motion of the drilling mast. This application does not limit the specific connection method between the horizontal shaft 31 and the drilling mast.

[0038] Figure 2 The diagram shown is a structural schematic of the rotary drilling rig's turntable device according to another embodiment of this application. Figure 2As shown, the horizontal rotating shaft 31 may include a hollow structure, through which the hinge shaft 33 passes. By setting the horizontal rotating shaft 31 as a hollow structure, and having the hinge shaft 33 completely pass through the hollow structure, i.e., the hinge shaft 33 is a complete and continuous shaft, the contact area between the hinge shaft 33 and the pitch rotating shaft 32 can be increased, thereby improving the connection strength between the hinge shaft 33 and the pitch rotating shaft 32, and consequently improving the strength of the drilling rig mast during erection and inversion movements. In one embodiment, the diameter of the horizontal rotating shaft 31 may be greater than 1.5 times the diameter of the hinge shaft 33. Since the hinge shaft 33 completely penetrates the horizontal rotating shaft 31, the middle of the horizontal rotating shaft 31 becomes hollow, thus reducing its load-bearing capacity. To ensure the load-bearing capacity of the horizontal rotating shaft 31, this embodiment can set the diameter of the horizontal rotating shaft 31 to be greater than 1.5 times the diameter of the hinge shaft 33, thereby ensuring that the actual diameter of the horizontal rotating shaft 31 is at least half that of the hinge shaft 33, thus guaranteeing its load-bearing capacity. It should be understood that this embodiment can select the diameters of the horizontal rotating shaft 31 and the hinge shaft 33 according to the needs of the actual application scenario. For example, the diameter of the hinge shaft 33 can be appropriately reduced to avoid the diameter of the horizontal rotating shaft 31 becoming too large, thereby avoiding an increase in the overall height of the rotary drilling rig. As long as the selected diameters of the horizontal rotating shaft 31 and the hinge shaft 33 can guarantee their load-bearing capacity without causing the rotary drilling rig to become too tall, this embodiment does not limit the specific diameters of the horizontal rotating shaft 31 and the hinge shaft 33. In one embodiment, a bushing can also be provided between the horizontal rotating shaft 31 and the hinge shaft 33. By providing a bushing between the horizontal rotating shaft 31 and the hinge shaft 33, the horizontal rotating shaft 31 is fixedly connected to the bushing, and the bushing is rotatably connected to the hinge shaft 33. This bushing allows for a movable connection where the relative position of the horizontal rotating shaft 31 and the hinge shaft 33 remains unchanged, thereby enabling the erection and lowering of the drilling rig mast via a luffing mechanism or similar device. Furthermore, the bushing is equipped with lubricating oil between the erection and lowering masts, which not only lubricates the bushing but also dissipates heat and reduces friction, thus improving the service life of the erection and lowering masts and the bushing. Additionally, by providing a bushing between the horizontal rotating shaft 31 and the hinge shaft 33, direct friction between the two shafts can be avoided, reducing wear on the horizontal rotating shaft 31 and the hinge shaft 33 and lowering costs.

[0039] In one embodiment, the cross-sectional shape of the pitch shaft 32 along the direction perpendicular to its axis may include a square. By setting the pitch shaft 32 with a square cross-sectional structure, the contact area between the pitch shaft 32 and the drilling rig mast can be increased, thereby improving the bonding strength and the load-bearing capacity of the pitch shaft 32. It should be understood that the embodiments of this application can select the cross-sectional shape of the pitch shaft 32 along the direction perpendicular to its axis according to the needs of the actual application scenario, such as a circle, as long as the selected cross-sectional shape of the pitch shaft 32 along the direction perpendicular to its axis can ensure the load-bearing capacity of the pitch shaft 32 and the bonding strength between the pitch shaft 32 and the drilling rig mast. The embodiments of this application do not limit the specific cross-sectional shape of the pitch shaft 32 along the direction perpendicular to its axis.

[0040] Figure 3 and Figure 4 The figures shown are schematic diagrams illustrating the transportation and working states of a rotary drilling rig according to an embodiment of this application. Figure 3 and Figure 4 As shown, the rotary drilling rig includes: a drilling rig support platform 1, a drilling rig assembly 2, and a turntable device 3; wherein, the drilling rig assembly 2 is mounted on the drilling rig support platform 1, and the turntable device 3 is disposed between the drilling rig assembly 2 and the drilling rig support platform 1, and the turntable device 3 can be any of the turntable devices of the rotary drilling rig described above. By setting the turntable device 3 between the drilling rig support platform 1 and the drilling rig assembly 2, the spatial movement of the drilling rig assembly 2 relative to the drilling rig support platform 1 can be realized using the turntable device 3, thereby realizing actions such as deploying the drilling rig assembly 2 for operation and storing and transporting it. In one embodiment, at least half of the turntable device 3 is disposed inside the drilling rig mast, that is, the hinge points of the horizontal rotation axis and the pitch rotation axis of the turntable device 3 are disposed inside the drilling rig mast.

[0041] This application provides a rotary drilling rig that achieves horizontal swing of the drilling rig assembly by setting a horizontal rotating shaft connected to the drilling mast, setting a pitch rotating shaft connected to the drilling mast to achieve pitch movement of the drilling rig assembly, and setting a hinge shaft rotatably connected to the pitch rotating shaft to achieve mast erection and inversion of the drilling rig assembly through a luffing mechanism, thereby realizing spatial displacement of the drilling rig assembly. Furthermore, at least a portion of the horizontal rotating shaft and at least a portion of the pitch rotating shaft are located inside the drilling mast, thereby reducing the overall height of the drilling rig during transportation to comply with relevant national transportation regulations. This avoids disassembly and installation during transportation, improving transportation efficiency and reducing transportation costs. It also avoids damage to various components of the rotary drilling rig caused by repeated disassembly and installation, thus extending the service life of the rotary drilling rig.

[0042] In one embodiment, such as Figure 3 and Figure 4As shown, the drilling rig assembly 2 may include a drilling mast 21 and a drill rod 22; wherein the drill rod 22 is disposed on the drilling mast 21; the drilling mast 21 has an opening on the side near the rotary table device 3, and at least a portion of the horizontal rotating shaft and at least a portion of the pitch rotating shaft of the rotary table device 3 are disposed inside the opening. By opening an opening on the drilling mast 21 and disposing at least a portion of the horizontal rotating shaft and at least a portion of the pitch rotating shaft inside the opening, the overall height of the drilling rig assembly 2 and the rotary table device 3 in the stowed state can be reduced to comply with relevant national transportation regulations. In a further embodiment, a drill bit is disposed at one end of the drill rod 22 for drilling operations, and a power head 23 is disposed at the other end of the drill rod 22, through which the drill bit is driven for drilling operations. In one embodiment, a guide rail can be provided between the drilling mast 21 and the drill rod 22. The drill rod 22 is connected to the drilling mast 21 by a wire rope provided on the drilling mast 21. The drill rod 22 is driven by the wire rope through the guide rail to move linearly along the drilling mast 21 to realize the drilling operation.

[0043] In one embodiment, a reinforcing plate may be provided on the inner side of the opening. Since the opening is provided on one side of the drilling mast 21, the thickness of the opening is reduced, resulting in a weakening of the opening's strength. To avoid the opening affecting the overall strength and load-bearing capacity of the drilling mast 21, this embodiment of the application may provide reinforcing plates on the inner side of the opening to supplement the strength of the opening, thereby ensuring the overall strength and load-bearing capacity of the drilling mast 21.

[0044] In one embodiment, such as Figure 3 and Figure 4 As shown, the rotary drilling rig described above may further include: a luffing mechanism 4, which is disposed between the turntable device 3 and the drilling rig support platform 1, and is connected to the aforementioned hinge shaft 33. Through the connection between the luffing mechanism 4 and the hinge shaft 33, the movement of the luffing mechanism 4 drives the lifting and lowering movement of the hinge shaft 33, thereby driving the erection and lowering movements of the drilling rig components, including the drilling mast. In one embodiment, the luffing mechanism 4 may include multiple hinged connecting rods. Through these multiple hinged connecting rods, the folding and unfolding of the luffing mechanism 4 can be easily achieved to realize the erection and lowering movements of the drilling rig components 2 connected to the hinge shaft side of the luffing mechanism 4. It should be understood that the specific structure of the luffing mechanism 4 can be selected according to the needs of the actual application scenario, such as a telescopic rod structure, as long as the selected specific structure of the luffing mechanism 4 can realize the lifting and lowering movements of the hinge shaft and the drilling rig components 2. The specific structure of the luffing mechanism 4 is not limited in this application embodiment.

[0045] In one embodiment, such as Figure 3 and Figure 4As shown, the aforementioned rotary drilling rig may further include a transport component 5, which is disposed below the drilling rig support platform 1. The transport component 5 is used to transport the drilling rig support platform 1, the drilling rig component 2, and the rotary table device 3. By setting the transport component 5, the drilling rig support platform 1, the drilling rig component 2, and the rotary table device 3 can be transported, thereby enabling the rotary drilling rig to be used at various work sites. In a further embodiment, the transport component 5 may include track wheels. By setting track wheels, a stable transport function can be achieved, and by utilizing the stability of track wheels and the large contact area between track wheels and the ground, the overall stability and safety of the rotary drilling rig can be improved. It should be understood that the specific structure of the transport component 5 in this application embodiment can be selected according to the needs of the actual application scenario, as long as the specific structure of the selected transport component 5 can realize the transport of the drilling rig support platform 1, the drilling rig component 2, and the rotary table device 3. This application embodiment does not limit the specific structure of the transport component 5.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications or equivalent substitutions made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rotary drilling rig's turntable device, characterized in that, include: A horizontal pivot shaft is connected to the drilling rig mast and is configured to enable the drilling rig mast to swing horizontally. A pitch axis is connected to the drilling rig mast and is configured to enable the pitch rotation of the drilling rig mast. as well as A hinge shaft is rotatably connected to the pitch shaft, and is configured to realize the erection and deflection of the drilling rig mast; Wherein, at least a portion of the horizontal rotating shaft and at least a portion of the pitching rotating shaft are disposed inside the drilling rig mast; The horizontal rotating shaft includes a hollow structure, and the hinge shaft passes through the hollow structure; The diameter of the horizontal rotating shaft is greater than 1.5 times the diameter of the hinge shaft; The hinge axis is disposed inside the pitch axis; A pad is provided between the pitch axis and the drilling rig mast; The pad includes a removable pad; The cross-sectional shape of the pitch axis along the direction perpendicular to the axis includes a square shape; A bushing is provided between the hinge axis and the pitch axis, and a bushing is provided between the horizontal axis and the pitch axis.

2. A rotary drilling rig, characterized in that, include: Drilling rig support platform; A drilling rig assembly, which is mounted on the drilling rig support platform; as well as A rotary table device is disposed between the drilling rig assembly and the drilling rig support platform, the rotary table device including the rotary drilling rig rotary table device as described in claim 1.

3. The rotary drilling rig according to claim 2, characterized in that, The drilling rig assembly includes: The drilling rig mast; and Drill rod, which is mounted on the drilling rig mast; The drilling rig mast has an opening on the side near the rotary table device, and at least a portion of the horizontal rotating shaft and at least a portion of the pitching rotating shaft are disposed inside the opening.

4. The rotary drilling rig according to claim 3, characterized in that, A reinforcing plate is provided on the inner side of the opening.

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