Multi-angle exploration drilling rig

Abstract

The present disclosure provides a multi-angle drilling rig for exploration drilling. The support link assembly can be configured with multiple sections of rods having different lengths. This allows for vertical drilling operations, where a front telescopic section is pivotally connected to a frame, and a rear telescopic section is pivotally connected to a long support link assembly. Furthermore, in inclined drilling operations, the front telescopic section is pivotally connected to the frame via a fixed support, and the rear telescopic section is pivotally connected to a medium support link assembly. Furthermore, in horizontal drilling operations, the front telescopic section is pivotally connected to the frame via a fixed support, and the rear telescopic section is pivotally connected to a short support link assembly. According to the present disclosure, a single drilling rig can quickly switch between different postures to meet the needs of different drilling operations.

Description

Technical Field

[0001] The present disclosure relates to the field of engineering drilling, and in particular to a drilling rig for multi-angle engineering exploration drilling. Background Art

[0002] Engineering exploration drilling construction generally includes two main application scenarios: surface drilling construction and tunnel drilling construction. In the surface drilling construction scenario, drill rods are used for vertical drilling of the soil. In the tunnel drilling construction scenario, drill rods are used for horizontal drilling of the soil. Sometimes inclined drilling is also required. Since the force directions of the drill rig are different in the three working conditions of vertical drilling, horizontal drilling and inclined drilling, in order to ensure smooth drilling operations, the existing technology uses dedicated drill rigs for different working conditions. This not only increases equipment costs, but also makes it impossible to place multiple drill rigs at the same time in some narrow tunnels. Summary of the Invention

[0003] The present disclosure provides a drilling rig for multi-angle exploration drilling.

[0004] Specifically, the present disclosure is achieved through the following technical solutions:

[0005] The present disclosure provides a multi-angle drilling rig for exploration drilling, which is used to perform drilling operations in vertical drilling, horizontal drilling, and inclined drilling conditions, including:

[0006] frame;

[0007] A feed beam is provided with a front telescopic section and a rear telescopic section arranged in sequence from the front to the rear of the drilling rig, wherein the front telescopic section and the rear telescopic section are telescopically connected to each other;

[0008] A power head is provided with a power motor and a drill rod, and the power head can be slidably arranged on the feed beam along the direction in which the front telescopic section and the rear telescopic section extend and retract mutually;

[0009] A fixed support, detachably arranged at the front of the frame;

[0010] A supporting link assembly is provided at the rear of the frame, with both ends of the supporting link assembly being pivotally connected to the frame and the rear telescopic section respectively;

[0011] In which, the support-link assembly can be configured with different length specifications by multiple section rods, so as to be suitable for setting the front telescopic section to be pivotally connected to the frame and the rear telescopic section to be pivotally connected to the support-link assembly configured as a long specification under the vertical drilling working condition, and setting the front telescopic section to be pivotally connected to the frame through the fixed support and the rear telescopic section to be pivotally connected to the support-link assembly configured as a medium specification under the inclined drilling working condition, and setting the front telescopic section to be pivotally connected to the frame through the fixed support and the rear telescopic section to be pivotally connected to the support-link assembly configured as a short specification under the horizontal drilling working condition.

[0012] In some embodiments, the rear telescopic section is provided with at least a first rear telescopic section and a second rear telescopic section, the front telescopic section, the first rear telescopic section and the second rear telescopic section are telescopically connected in sequence, and the support link assembly is provided with a front support rod and a rear support rod. Under the inclined drilling condition, the front support rod and the rear support rod are pivotally connected to the first rear telescopic section and the second rear telescopic section respectively.

[0013] In some embodiments, the rear telescopic section is provided with at least a first rear telescopic section and a second rear telescopic section, the front telescopic section, the first rear telescopic section and the second rear telescopic section are telescopically connected in sequence, and the support link assembly is provided with a front support rod and a rear support rod. Under the horizontal drilling condition, the rear support rod is pivotally connected to the first rear telescopic section, and there is no connection between the front support rod and the rear telescopic section.

[0014] In some embodiments, the section rod is provided with an end rod, a transition rod and a main rod, one end of the end rod is pivotally connected to the frame and / or the rear telescopic section, wherein the main rods and the end rods and the main rods are connected through a transition rod.

[0015] In some embodiments, under the inclined drilling condition, both ends of the support link assembly are pivotally connected to the rear telescopic section and the frame respectively through end rods, and the main rod in the middle of the support link assembly is connected to the two end rods.

[0016] In some embodiments, under the horizontal drilling condition, the two ends of the support link assembly are pivotally connected to the rear telescopic section and the frame respectively through end rods, and the middle part of the support link assembly directly connects the two end rods to each other through a transition rod.

[0017] In some embodiments, the fixed support is provided with a first leg in front and a second leg in the rear, the first leg extends vertically, and the second leg extends obliquely forward, wherein in the inclined drilling condition and the horizontal drilling condition, the support link assembly extends obliquely backward.

[0018] In some embodiments, under the inclined drilling condition and the horizontal drilling condition, the rearward inclination angle of the support link assembly and the forward inclination angle of the second leg are arranged symmetrically to each other.

[0019] In some embodiments, the power head is provided with a forward water supply port, so as to be suitable for supplying high-pressure water to the interior of the drill pipe under the horizontal drilling condition, thereby achieving a coring operation through water pressure.

[0020] According to the embodiment of the present disclosure, since multiple section rods can be configured as support connecting rod assemblies of different length specifications, the drilling rig can be flexibly adjusted to a suitable support state according to the angle of the feed beam under vertical drilling conditions, horizontal drilling conditions and inclined drilling conditions, thereby achieving rapid conversion to different postures to meet the needs of different drilling conditions with only one drilling rig.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0023] Figure 1 This is a schematic diagram of a multi-angle drilling rig for exploration drilling in one embodiment of the present disclosure. Figure 2

[0024] Figure 2 This is a schematic diagram of a multi-angle exploration drilling rig in an embodiment of the present disclosure under inclined drilling conditions. Figure 2

[0025] Figure 3 This is a schematic diagram of a multi-angle exploration drilling rig in a horizontal drilling condition according to an embodiment of the present disclosure. Figure 2

[0026] Figure 4 This is a schematic diagram of a multi-angle exploration drilling rig in a vertical drilling condition according to an embodiment of the present disclosure. Figure 2

[0027] Figure 5 This is a schematic diagram of an end rod in an embodiment of the present disclosure. Figure 2

[0028] Figure 6 This is a schematic diagram of an end rod in another embodiment of the present disclosure. Figure 2

[0029] Figure 7 This is a schematic diagram of a transition rod in an embodiment of the present disclosure. Figure 2

[0030] Figure 8 Schematic diagram of a main rod in one embodiment of the present disclosure.

[0031] Reference numerals:

[0032] 10: Frame; 21: Front telescopic section; 22: First rear telescopic section; 23: Second rear telescopic section;

[0033] 20: feed beam;

[0034] 30: power head;

[0035] 40: fixed support; 41: first support leg; 42: second support leg;

[0036] 50: Support link assembly; 501: End rod; 502: Transition rod; 503: Main rod; 51: Front support rod; 52: Rear support rod. DETAILED DESCRIPTION

[0037] The present disclosure will now be discussed with reference to several embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0038] As used herein, the term "including" and its variations are to be interpreted as open-ended terms meaning "including but not limited to"; the terms "embodiment" and "one embodiment" are to be interpreted as "at least one embodiment"; the term "another embodiment" is to be interpreted as "at least one other embodiment"; the terms "first," "second," etc. may refer to different or identical objects; the term "configured" is not limited to direct or indirect connections, nor is it limited to a specific connection method. Other explicit and implicit definitions may also be included below.

[0039] As used herein, the term "front" refers to the direction of the drill toward the borehole being drilled, and the term "rear" refers to the direction of the drill away from the borehole being drilled.

[0040] In the following description, some specific numerical values ​​or numerical ranges may be involved. It should be understood that these numerical values ​​and numerical ranges are merely exemplary, which may be helpful in putting the ideas of the present disclosure into practice. However, the description of these examples is not intended to limit the scope of the present disclosure in any way. Depending on specific application scenarios and needs, these numerical values ​​or numerical ranges can be set separately.

[0041] As mentioned above, the existing technology uses different dedicated drilling rigs for vertical drilling, horizontal drilling, and inclined drilling, which not only increases the equipment cost, but also makes it impossible to place multiple drilling rigs at the same time in some narrow tunnels. The multi-angle drilling rig for exploration drilling proposed in the embodiments of the present disclosure at least partially solves the above problems. Figures 1 to 8 The structure and working principle of the multi-angle drilling rig for exploration drilling according to the exemplary embodiment of the present disclosure are described below. Figure 1 As shown, the multi-angle drilling rig for exploration and prospecting of the embodiment of the present disclosure generally includes a frame 10, a feed beam 20, a power head 30, a fixed support 40 and a support link assembly 50. Those skilled in the art will understand that the drilling rig for exploration and prospecting also has conventional functional components, exemplarily including an engine, a winch, a mud pool, a clean water pool, a center console, a drill rod, a clamp, etc., but these components are not closely related to the concept of the present disclosure and will not be described in detail here. Among them, the frame 10 is used to carry the various functional components of the drilling rig. The frame 10 can be set to be directly installed on the ground, or it can be set to be installed on a mobile mechanism such as a crawler, drive wheel, etc., so as to drive the drilling rig as a whole to move forward through the mobile mechanism; a pulley group is provided on the feed beam 20, and the position of the pulley group is adjusted by telescoping the feed beam 20; the power head 30 includes a motor and a drill rod, and the power head 30 is arranged as a whole on the feed beam 20, and the drill rod is driven by the power head 30 for drilling; the fixed support 40 is used to support the feed beam 20 under horizontal drilling conditions and inclined drilling conditions; the support connecting rod assembly 50 is used to adjust the installation distance between the feed beam 20 and the frame 10, thereby adjusting the working angle of the feed beam 20 and the power head 30 under different drilling conditions.

[0042] In one embodiment, the feed beam 20 is composed of at least two sections of mutually telescopic structures, and the two sections are defined as a front telescopic section 21 close to the front side and a rear telescopic section close to the rear side. The front telescopic section 21 and the rear telescopic section are nested with each other and can move closer to and away from each other, thereby realizing the telescopic function of the entire feed beam 20.

[0043] In one embodiment, in order to improve the telescopic length and flexibility of use of the feed beam 20, on the basis of the pivotal connection between one end of the front telescopic section 21 and the fixed support 40, the rear telescopic section can be set to be composed of a first rear telescopic section 22 and a second rear telescopic section 23, or a third rear telescopic section can be set. The front telescopic section 21, the first rear telescopic section 22, the second rear telescopic section 23, and the third rear telescopic section are nested in sequence from front to back. Specifically, the power head 30 is set on the first rear telescopic section 22, the auxiliary pulley group is set on the first rear telescopic section 22, and the main pulley group is set on the third rear telescopic section.

[0044] In one embodiment, the fixed support 40 is detachably provided at the front of the frame 10. For example, the fixed support 40 can be connected to the front of the frame 10 by bolts. When a drilling rig is used for vertical drilling, the fixed support 40 is not required. One end of the front telescopic section 21 is directly pivotally connected to the front of the frame 10, thereby lowering the height of the front end of the feed beam 20 and increasing the angle between the feed beam 20 and the horizontal plane while the length of the support link assembly 50 remains unchanged, that is, increasing the support link assembly 50 to increase the height of the feed beam 20. The contribution rate of the angle between the feed beam 20 and the horizontal plane; when the drilling rig is used to perform inclined drilling operations and horizontal drilling operations, the fixed support 40 can be quickly and conveniently connected to the front of the frame 10, so that one end of the front telescopic section 21 is pivotally connected to the fixed support 40, thereby raising the height of the front end of the feed beam 20, and reducing the angle between the feed beam 20 and the horizontal plane while keeping the length of the support link assembly 50 unchanged, that is, reducing the contribution rate of the support link assembly 50 to increasing the angle between the feed beam 20 and the horizontal plane.

[0045] In one embodiment, the support link assembly 50 is composed of a plurality of section rods, which can be in different forms to achieve different functions. Figure 5 As shown, the section rod can be formed as an end rod 501, which is used to be pivotally connected to the frame 10 or the feed beam 20. For example, one end of the end rod 501 is formed with a pivot hole and the other end is formed with an internal threaded hole. In another example, Figure 6 As shown, one end of the end rod 501 is formed with a pivot hole, and the other end is formed with an external threaded rod; Figure 7 As shown, the section rod can be formed into a transition rod 502, which is used to connect the two main rods 503 or connect the main rod 503 and the end rod 501. For example, the middle part of the transition rod 502 is provided with an external hexagon for easy operation and screwing, and the two sections of the external hexagon form external threaded rods respectively; Figure 8 As shown, the section rod can be formed as a main rod 503, and the main rod 503 is used to adjust the length of the supporting link assembly 50. Exemplarily, one end of the main rod 503 is formed with an external threaded rod, and the other end is formed with an internal threaded hole.

[0046] In one embodiment, the support link assembly 50 can be provided in two groups, namely, a front support rod 51 near the front side and a rear support rod 51 near the rear side. The front support rod 51 and the rear support rod 51 can be respectively formed by different section rod combinations. In some working conditions, only one group is used, and in other working conditions, both groups are used at the same time. For example, in an inclined drilling working condition, such as Figure 2As shown, the front support rod 51 is shorter than the rear support rod 51, and one end of the front support rod 51 is pivotally connected to the rear middle part of the frame 10, and the other end is pivotally connected to the first rear telescopic section 22, and the pivot point is located in the rear end area of ​​the first rear telescopic section 22. At the same time, one end of the rear support rod 51 is pivotally connected to the rear of the frame 10, and the other end is pivotally connected to the second rear telescopic section 23, and the pivot point is located in the rear end area of ​​the second rear telescopic section 23, thereby maintaining the feed beam 20 at a specific tilt angle.

[0047] In another example, in horizontal drilling conditions, Figure 3 As shown, there is no need to use the front support rod 51. It is only necessary to pivotally connect the two ends of the shorter rear support rod 51 to the frame 10 and the first rear telescopic section 22 respectively. The pivot point is located in the area behind the first rear telescopic section 22. That is to say, in the inclined drilling condition and the horizontal drilling condition, the position of the pivot point on the frame 10 and the pivot point on the feed beam 20 does not need to be changed, making it more convenient to use the drilling rig when switching working conditions.

[0048] In specific use, different section rods can be flexibly selected according to the required length. For example, when a longer supporting link assembly 50 is required, such as Figure 4 As shown, for example, in vertical drilling conditions, three main rods 503 connected to each other are set between the two end rods 501, wherein one main rod 503 is directly connected to the feed beam 20. Figure 6 The end rod 501 shown is connected, and the other main rod 503 is connected to the frame 10 through the transition rod 502. Figure 5 The end rod 501 shown is connected, and the front support rod 51 is used in conjunction with two main rods 503; when a medium-sized support link assembly 50 is required, such as Figure 2 As shown, for example, in an inclined drilling condition, an end rod 501 is used to be pivotally connected to the frame 10 and the feed beam 20 , and the rear support rod 51 selects two main rods 503 , and the rear support rod 51 selects one main rod 503 to be threadedly connected to the end rod 501 .

[0049] In another example, when a shorter supporting link assembly 50 is required, Figure 3 As shown, for example, in a horizontal drilling condition, a pair of end rods 501 are pivotally connected to the frame 10 and the feed beam 20 , and the pair of end rods 501 are connected by a transition rod 502 .

[0050] In one embodiment, the fixed support 40 is provided with a first leg 41 at the front and a second leg 42 at the rear. The first leg 41 extends vertically and can provide the vertical component of force during the drilling process, especially under vertical drilling conditions, the vertically extended first leg 41 directly bears the gravity of components such as the drill pipe, the power head 30, and the feed beam 20; the second leg 42 extends forward at an angle. Since under the inclined drilling condition, the front support rod 51 and the rear support rod 51 are both in a state of extending backward at an angle, the support rod and the force-bearing direction of the second leg 42 constitute a symmetrical balance system, thereby keeping the drilling rig stable during the inclined drilling process; under the horizontal drilling condition, the only rear support rod 51 is in a state of extending backward at an angle, thereby making the rear support rod 51 and the force-bearing direction of the second leg 42 constitute a symmetrical balance system, thereby keeping the drilling rig stable during the horizontal drilling process.

[0051] In one embodiment, Figure 2 As shown, under the inclined drilling condition, the load directions of the front support rod 51 and the rear support rod 51 are both in the rod extension direction, and the angles between the load directions of the two and the horizontal plane are different. When the front support rod 51 and the rear support rod 51 are working and subjected to force, a synthetic load F (indicated by the dotted line in the figure) is formed between the load directions of the two. The direction of the synthetic load F is located at the midpoint of the angle between the load direction of the front support rod 51 and the load direction of the rear support rod 51. When the synthetic load direction F is mirror-symmetrical to the load direction angle of the second support leg 42, the drilling rig is in the most stable state. In another embodiment, as shown in FIG. Figure 3 As shown, under horizontal drilling conditions, the load-bearing direction of the rear support rod 51 is the rod extension direction. When the load-bearing direction of the rear support rod 51 is mirror-symmetrically angularly aligned with the load-bearing direction of the second leg 42, the drilling rig is in its most stable state. In the disclosed embodiment, by setting the height of the fixed support 40, the angle of the second leg 42, the pivotal positions of the front and rear support rods 51, 51 on the frame 10 and the feed beam 20, and the lengths of the front and rear support rods 51, the drilling rig can simultaneously meet the aforementioned symmetrical relationship under both inclined and horizontal drilling conditions.

[0052] Since the coring operation under horizontal drilling conditions does not require overcoming gravity, in one embodiment, a forward water supply port is provided on the power head 30 for injecting high-pressure water into the horizontal borehole from the water supply port, and the coring operation is completed by the reverse squeezing effect of the water pressure in the borehole.

[0053] The description of the embodiments herein and any references to directions and orientations are for ease of description only and are not to be construed as limiting the scope of the present invention. The description of the preferred embodiments may involve combinations of features, which may exist independently or in combination. The present invention is not specifically limited to the preferred embodiments. The scope of the present invention is defined by the claims.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drilling rig for multi-angle exploration drilling in a tunnel, used to perform drilling operations under vertical drilling, horizontal drilling and inclined drilling conditions, characterized in that: include: Frame (10); A feed beam (20) is provided with a front telescopic section and a rear telescopic section sequentially arranged from the front to the rear of the drilling rig, wherein the front telescopic section and the rear telescopic section are telescopically connected to each other; A power head (30) is provided with a power motor and a drill rod, and the power head (30) can be slidably arranged on the feed beam (20) along the direction in which the front telescopic section and the rear telescopic section extend and contract with each other; a fixed support (40) detachably disposed at the front of the frame (10), the fixed support (40) being provided with a first support leg (41) positioned forward and a second support leg (42) positioned backward, the first support leg (41) extending vertically, and the second support leg (42) extending obliquely forward; A supporting link assembly (50) is arranged at the rear of the frame (10), and two ends of the supporting link assembly (50) are pivotally connected to the frame (10) and the rear telescopic section respectively; Wherein, the support link assembly (50) can be configured with different length specifications by a plurality of section rods, so as to be suitable for setting the front telescopic section to be pivotally connected to the frame (10) under the vertical drilling working condition, and the rear telescopic section to be pivotally connected to the support link assembly (50) configured as a long specification; and under the inclined drilling working condition, setting the front telescopic section to be pivotally connected to the frame (10) through the fixed support (40), and the rear telescopic section to be pivotally connected to the support link assembly (50) configured as a medium specification; and under the horizontal drilling working condition, setting the front telescopic section to be pivotally connected to the frame (10) through the fixed support (40), and the rear telescopic section to be pivotally connected to the support link assembly (50) configured as a short specification; The rear telescopic section is provided with at least a first rear telescopic section (22) and a second rear telescopic section (23); the front telescopic section (21), the first rear telescopic section (22) and the second rear telescopic section (23) are sequentially telescopically connected; the support link assembly (50) is provided with a front support rod (51) and a rear support rod (52); Under the inclined drilling condition, the front support rod (51) and the rear support rod (52) are pivotally connected to the first rear telescopic section (22) and the second rear telescopic section (23), respectively. A composite load F is formed between the load directions of the front support rod (51) and the rear support rod (52). The direction of the composite load F is located at the midpoint of the angle between the load direction of the front support rod (51) and the load direction of the rear support rod (52). The composite load direction F is mirror-symmetrical to the load direction of the second leg (42). In the horizontal drilling working condition, the rear support rod (52) is pivotally connected to the first rear telescopic section (22), and there is no connection between the front support rod (51) and the rear telescopic section.

2. The multi-angle drilling rig for exploration and drilling in a tunnel according to claim 1, characterized in that: The segment rod is provided with an end rod (501), a transition rod (502) and / or a main rod (503), one end of the end rod (501) is pivotally connected to the frame (10) or the rear telescopic section, wherein the main rods (503) and the end rods (501) and the main rod (503) are connected via the transition rod (502).

3. The multi-angle drilling rig for exploration and drilling in a tunnel according to claim 2, characterized in that: In the inclined drilling condition, the two ends of the support link assembly (50) are pivotally connected to the rear telescopic section and the frame (10) respectively through the end rods (501), and the main rod (503) in the middle of the support link assembly (50) is connected to the two end rods (501).

4. The multi-angle drilling rig for exploration and drilling in a tunnel according to claim 2, characterized in that: In the horizontal drilling working condition, the two ends of the support link assembly (50) are pivotally connected to the rear telescopic section and the frame (10) respectively through the end rods (501), and the middle part of the support link assembly (50) directly connects the two end rods (501) to each other through the transition rod (502).

5. The multi-angle drilling rig for exploration and drilling in a tunnel according to claim 1, characterized in that: The power head (30) is provided with a forward water supply port, so as to be suitable for supplying high-pressure water to the interior of the drill pipe under the horizontal drilling working condition, thereby realizing a coring operation through water pressure.

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