Raise boring machine inclined supporting structure and raise boring machine

Abstract

The utility model discloses an inclined support structure of a raise boring machine and the raise boring machine, and belongs to the field of industrial and mining equipment. According to the technical scheme, the inclined supporting structure of the raise boring machine comprises a sleeve part and an inner rod part, the sleeve part comprises a main pipe body, and a first hinge seat is arranged at the front end of the main pipe body; the front end of the inner rod part is inserted into the rear end of the main pipe body; a second hinge seat is arranged at the rear end of the inner rod part; a plurality of first positioning holes are formed in the side wall of the main pipe body and arranged in the length direction of the main pipe body, and pin parts used for positioning the inner rod part are installed in the first positioning holes. According to the scheme, the overall length is adjusted through telescopic movement of the sleeve part and the inner pipe part, a triangular stable structure is formed between the drilling machine chassis and the propelling system assembly in a supported mode, shaking of the propelling system assembly is reduced, and the drilling precision is improved; meanwhile, counter force borne by the lifting oil cylinder is greatly reduced, and the service life of the lifting oil cylinder is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment, and in particular to a inclined support structure for a riser drilling rig, as well as a riser drilling rig. Background Technology

[0002] A riser drilling rig is a specialized drilling device used in underground engineering projects such as mines and tunnels to construct risers. Its main function is to quickly and efficiently complete vertical or near-vertical drilling operations. This equipment is characterized by high efficiency, good safety, and a high degree of automation, and is suitable for construction under various geological conditions.

[0003] The main components of the well drilling rig include the chassis and the propulsion system assembly for tunneling. The propulsion system assembly is mounted on the chassis via a hinged structure and a pitch cylinder. When the drilling rig is moving, the pitch cylinder retracts, and the propulsion system assembly lies flat on the chassis. When drilling, the pitch cylinder extends, causing the propulsion system assembly to stand upright, with the boot plate at the bottom of the propulsion system assembly supporting it on the mine floor.

[0004] During inclined drilling, the propulsion system assembly has a large overall mass and is supported only by the pitch cylinder and the base shoe plate. There are few fulcrums and stable points, and the propulsion system assembly of the drilling rig is prone to shaking during drilling operations, which causes the drilling angle to deviate and affects the drilling accuracy. Summary of the Invention

[0005] This utility model addresses the problem that the propulsion system assembly is prone to shaking during inclined drilling operations of current well drilling rigs, resulting in poor drilling accuracy, by providing an inclined support structure for well drilling rigs.

[0006] To address the aforementioned problems, the present invention provides a inclined support structure for a well drilling rig, comprising a casing component and an inner rod component. The casing component includes a main pipe body with a first hinge seat at its front end. The front end of the inner rod component is inserted into the rear end of the main pipe body, and a second hinge seat is provided at its rear end. Multiple first positioning holes are formed on the side wall of the main pipe body, arranged along its length. Pins for positioning the inner rod component are installed in the first positioning holes. This design provides a rod-type inclined support structure. The overall length is adjusted by the telescopic movement of the casing component and the inner pipe component. Supported between the drilling rig chassis and the propulsion system assembly, it forms a stable triangular structure with the hinge point between the propulsion system assembly and the drilling rig chassis, creating rigid support, reducing the sway of the propulsion system assembly, and improving drilling accuracy. Simultaneously, it significantly reduces the reaction force on the lifting cylinder, extending its service life.

[0007] Preferably, the inner rod component includes a main rod body, the front end of which is inserted into the main tube body, and the rear end of the main rod body is provided with a telescopic assembly collinear with the main rod body. The second hinge seat is disposed on the telescopic assembly. Further providing a telescopic assembly on the inner rod component allows for more precise setting of the total length of the support structure and also enables tensioning after the support structure is installed.

[0008] Preferably, the telescopic assembly includes a first threaded sleeve, with its inner bore having a first internal thread segment and a second internal thread segment at both ends, the first and second internal thread segments having opposite directions of rotation. The rear end of the main rod has a first external thread segment. The second hinge seat is connected to a threaded rod, which has a second external thread segment. The first external thread segment engages with the first internal thread segment, and the second external thread segment engages with the second internal thread segment. Using a bidirectional threaded structure as the telescopic assembly allows for stepless length adjustment and also provides a length self-locking effect, ensuring support stability.

[0009] Preferably, the telescopic assembly includes a second threaded sleeve, the inner hole of the second threaded sleeve is provided with a third internal thread section, the rear end of the main rod is provided with a third external thread section, the third external thread section and the third internal thread section are connected in a mating connection, and the second hinge seat is rotatably connected to the rear end of the second threaded sleeve.

[0010] Preferably, locking nuts are installed on the first and second external threaded sections, respectively, and the two locking nuts can abut against the front and rear ends of the first threaded sleeve. The locking bolts, in conjunction with the threaded sleeve, prevent thread loosening and improve stability. A set screw is provided on the circumference of the locking nut to tighten it and enhance the anti-loosening effect.

[0011] Preferably, the outer wall of the first threaded sleeve is provided with a wrench insertion hole or a locking mechanism to facilitate rotation of the threaded sleeve.

[0012] Preferably, the main rod body is provided with a second positioning hole, through which the pin component passes.

[0013] Preferably, the pin component is a tightening pin.

[0014] Preferably, the sleeve component further includes a guide tube, the inner diameter of which is adapted to the outer diameter of the insertion portion of the inner rod component, and an oil passage is provided on the inner surface of the guide tube. The cooperation between the guide tube and the inner rod component improves the integrity of the support structure and makes it less prone to shaking. At the same time, the oil passage on the inner surface allows for the injection of lubricating oil to ensure smooth extension and retraction of the sleeve component and the inner rod component.

[0015] On the other hand, this utility model also provides a well drilling rig, including a vehicle body and a propulsion system assembly, and also includes the aforementioned well drilling rig inclined support structure. The propulsion system assembly is provided with a third hinge seat for connecting a first hinge seat, and the vehicle body is provided with a fourth hinge seat for connecting a second hinge seat.

[0016] As can be seen from the above technical solutions, the advantages of this utility model are as follows: First, the structure, through the telescopic movement of the casing component and the inner rod component, can adjust the overall length, forming a stable triangular structure that provides rigid support between the drilling rig chassis and the propulsion system assembly, significantly reducing the swaying of the propulsion system assembly and thus improving drilling accuracy and stability. Second, the structure effectively improves the service life of the lifting cylinder by reducing the reaction force on it. Furthermore, the telescopic component on the inner rod component allows for more precise adjustment of the support length, and tensioning can be performed after installation, further enhancing the stability of the support. The telescopic component with a bidirectional thread structure achieves stepless length adjustment and has a self-locking function, ensuring the stability of the support. The design of the locking nut and wrench socket or clamp improves the ease of operation and the safety of the structure. The cooperation between the guide tube and the inner rod component, as well as the setting of the oil passage, enhances the integrity of the support structure and ensures smooth telescopic movement between components. Finally, the use of the expansion pin improves the fixing effect of the pin component, ensuring the stability of the entire support structure. On the other hand, the well drilling rig provided by this utility model adopts this support structure when drilling at an angle, making the drilling process more stable and improving the drilling accuracy. At the same time, the reaction force and impact on the lifting cylinder during drilling are greatly reduced, ensuring the service life of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present utility model. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention. Figure 1 .

[0021] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention. Figure 2 .

[0022] Explanation of main figure symbols

[0023] 1. Main body, 2. Guide tube, 3. First hinge seat, 4. Main rod body, 5. Second hinge seat, 6. First threaded sleeve, 7. Locking nut, 8. First positioning hole, 9. Wrench insertion hole, 10. Vehicle body, 11. Propulsion system assembly, 12. Pin component. Detailed Implementation

[0024] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0025] Example 1

[0026] like Figure 1 , 2 As shown, a inclined support structure for a well drilling rig includes a casing component and an inner rod component. The casing component is hollow along its length. The inner rod component is inserted into one end of the casing component and can extend and retract relative to it. The front end of the casing component is provided with a first hinge seat 3, and the rear end of the inner rod component is provided with a second hinge seat 5. Specifically:

[0027] The sleeve assembly also includes a main body 1 and a guide tube 2. A first hinge seat 3 is disposed at the front end of the main body 1, and the guide tube 2 is disposed at the rear end of the main body 1. A plurality of first positioning holes 8 are provided on the side wall of the main body 1. The axial direction of the first positioning holes 8 is perpendicular to the main body 1. The plurality of first positioning holes 8 are arranged along the length direction of the main body 1. A pin component 12 can be installed in any position of the first positioning hole 8 to fix the relative position of the sleeve assembly and the inner rod component.

[0028] The inner rod component includes a main rod body 4 and a telescopic assembly. The telescopic assembly is collinear with the main rod body, and its telescopic direction is the same as the length direction of the main rod body 4. The second hinge seat 5 is set on the telescopic assembly. The front end of the main rod body 4 is inserted into the sleeve component. Specifically, the inner diameter of the guide tube 2 matches the outer diameter of the main rod body 4. It is advisable to use a clearance fit between the two, which can slide relative to each other with a small amount of wobble. Furthermore, an oil passage can be opened on the inner wall of the guide tube 2. When in use, lubricating oil is injected to make the telescopic movement between the main rod body 4 and the guide tube 2 smoother. The main rod body 4 is provided with one or more second positioning holes. When there are multiple second positioning holes, the distance between two adjacent second positioning holes should be equal to the distance between two adjacent first positioning holes on the main rod body 1. The pin component is installed in both the first positioning hole and the second positioning hole to lock the total length of the sleeve component and the inner rod component. The pin component is preferably a shrinking pin. The telescopic assembly is located at the rear end of the main rod 4. In this embodiment, the telescopic assembly includes a first threaded sleeve 6. The two ends of the inner hole of the first threaded sleeve 6 are respectively configured as a first internal thread segment and a second internal thread segment, with opposite rotation directions. The rear end of the main rod 4 is provided with a first external thread segment. A threaded rod is connected to a second hinge seat 5. The threaded rod is provided with a second external thread segment. The first external thread segment is engaged with the first internal thread segment, and the second external thread segment is engaged with the second internal thread segment. The outer wall of the first threaded sleeve 6 is provided with a wrench insertion hole 9. The length of the telescopic assembly can be adjusted more conveniently by inserting a rod-like component and rotating the threaded sleeve. In addition, a locking structure can be provided to achieve the rotation adjustment function with a wrench. Furthermore, locking nuts 7 are respectively installed on the first external thread segment and the second external thread segment. The two locking nuts 7 can abut against the front and rear ends of the first threaded sleeve 6 respectively. A set screw is provided on the circumference of the locking nut 6 to tighten the locking nut and enhance the anti-loosening effect.

[0029] Alternatively, in other embodiments, the telescopic component may also be in the form of single-end telescopic, for example, it may be configured as a second threaded sleeve, the inner hole of the second threaded sleeve is provided with a third internal thread section, the rear end of the main rod body 4 is provided with a third external thread section, the third external thread section and the third internal thread section are connected in cooperation, and the second hinge seat 5 is rotatably connected to the rear end of the second threaded sleeve.

[0030] Example 2

[0031] Based on the inclined support structure provided in Embodiment 1, this embodiment further provides a well drilling rig, such as... Figure 3 , 4 As shown, it includes a vehicle body 10 and a propulsion system assembly 11, as well as a riser drilling rig inclined support structure provided in Embodiment 1. The propulsion system assembly 11 includes a top plate for installing guide columns (this is an existing riser drilling rig structure, which will not be described in detail here), a third hinge seat is provided on the top plate, and a fourth hinge seat is provided on the upper surface of the vehicle frame.

[0032] When the well drilling rig is working, such as Figure 3 , 4 As shown, based on the tilt angle of the propulsion system assembly 11, by adjusting the relative positions of the main rod body 4 and the main pipe body 1, as well as the total length of the telescopic assembly, the first hinge seat 3 is adapted to the position of the third hinge seat and hinged with a pin, and the second hinge seat 5 is adapted to the position of the fourth hinge seat and hinged with a pin. Then, the first threaded sleeve (or the second threaded sleeve) is rotated appropriately to allow the telescopic assembly to extend appropriately, ensuring that the bottom shoe plate of the propulsion system assembly is firmly supported on the ground. This reduces the reaction force on the pitch cylinder during tunneling. Then, the locking nut is tightened to press against the threaded sleeve, preventing the threaded fit from loosening. The locking nut 6 has a set screw on its circumference to tighten the locking nut and enhance the anti-loosening effect.

[0033] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: The structure, through the telescopic mechanism of the casing and inner rod, allows users to adjust the support length according to actual needs, forming a robust triangular support frame. This design not only improves the flexibility of drilling rig operation but also significantly reduces vibration during drilling, thereby improving drilling accuracy. Simultaneously, by optimizing the support structure, the additional pressure on the lifting cylinder is reduced, effectively extending the cylinder's service life and lowering maintenance costs. The telescopic component design of the inner rod allows for more precise adjustment of the support length and allows for tightening after installation, further enhancing the stability of the support. The bidirectional thread design of the telescopic component not only achieves stepless adjustment of the support length but also has a self-locking function, ensuring the support's robustness and safety. The locking nut design, combined with the wrench insertion hole or clamp, makes operation more convenient and improves structural safety. The good fit between the guide tube and the inner rod component, as well as the oil passage design, enhances the integrity of the entire support structure, ensuring smooth movement between components. The use of a shrink-fit pin design improves the fixing capacity of the pin component, ensuring the stability of the support structure.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A inclined support structure for a well drilling rig, characterized in that, The device includes a sleeve component and an inner rod component. The sleeve component includes a main body (1) with a first hinge seat (3) at the front end. The front end of the inner rod component is inserted into the rear end of the main body (1), and the rear end of the inner rod component is provided with a second hinge seat (5). Multiple first positioning holes (8) are provided on the side wall of the main body (1). The multiple first positioning holes (8) are arranged along the length direction of the main body (1), and a pin component for positioning the inner rod component is installed in the first positioning hole.

2. The inclined support structure for a well drilling rig according to claim 1, characterized in that, The inner rod component includes a main rod body (4), the front end of which is inserted into the main tube body (1), and the rear end of the main rod body (4) is provided with a telescopic assembly that is collinear with the main rod body (4). The second hinge seat (5) is provided on the telescopic assembly.

3. The inclined support structure for a well drilling rig according to claim 2, characterized in that, The telescopic assembly includes a first threaded sleeve (6), the two ends of the inner hole of the first threaded sleeve (6) are respectively set as a first internal thread segment and a second internal thread segment, the first internal thread segment and the second internal thread segment have opposite directions of rotation, the rear end of the main rod body (4) is provided with a first external thread segment, the second hinge seat (5) is connected with a threaded rod, the threaded rod is provided with a second external thread segment, the first external thread segment is connected to the first internal thread segment, and the second external thread segment is connected to the second internal thread segment.

4. The inclined support structure for a well drilling rig according to claim 2, characterized in that, The telescopic assembly includes a second threaded sleeve, the inner hole of which is provided with a third internal thread section, the rear end of the main rod (4) is provided with a third external thread section, the third external thread section and the third internal thread section are connected in a fit, and the second hinge seat (5) is rotatably connected to the rear end of the second threaded sleeve.

5. The inclined support structure for a well drilling rig according to claim 3, characterized in that, Locking nuts (7) are installed on the first external thread section and the second external thread section respectively, and the two locking nuts (7) can abut against the front and rear ends of the first threaded sleeve (6) respectively.

6. The inclined support structure for a well drilling rig according to claim 3, characterized in that, The outer wall of the first threaded sleeve (6) is provided with a wrench insertion hole (9) or a clamp.

7. The inclined support structure for a well drilling rig according to claim 2, characterized in that, The main rod (4) is provided with a second positioning hole, through which the pin component passes.

8. The inclined support structure for a well drilling rig according to claim 1, characterized in that, The pin component is an expansion pin.

9. The inclined support structure for a well drilling rig according to any one of claims 1-5, characterized in that, The sleeve component also includes a guide tube (2), the inner diameter of which is adapted to the outer diameter of the insertion part of the inner rod component, and the inner surface of the guide tube (2) is provided with an oil passage.

10. A well drilling rig, comprising a vehicle body (10) and a propulsion system assembly (11), characterized in that, It also includes the inclined support structure of the well drilling rig as described in any one of claims 1-9, wherein the propulsion system assembly (11) is provided with a third hinge seat for connecting the first hinge seat (3), and the vehicle body (10) is provided with a fourth hinge seat for connecting the second hinge seat (5).

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