A polar house van drill

Abstract

This utility model relates to a polar-type housing drilling rig, which includes a housing, a support assembly, a mast assembly, and a power head. The support assembly, mast assembly, and power head are all located within the housing, and the top of the housing has an openable window. The support assembly includes a fixed plate, a support frame, and a drive cylinder. The fixed plate is disposed within the housing, the support frame is fixedly mounted on the fixed plate, and one end of the drive cylinder is hinged to the fixed plate. The mast assembly includes a main mast and a drive element. The main mast is hinged to the support frame; the other end of the drive cylinder is hinged to the main mast; the power head is slidably mounted on the main mast and connected to the drive element, which enables the power head to slide along the main mast. This utility model achieves drilling operations and transportation by rotatably mounting the main mast on the support assembly. The rotation of the main mast on the support assembly allows the mast assembly to switch between a first state and a second state.

Description

Technical Field

[0001] This utility model relates to the field of exploration equipment technology, and in particular to a polar chamber-type drilling rig. Background Technology

[0002] A drilling rig is a mechanical device used in geological exploration to drive a drilling tool into the ground to obtain physical geological data. Its main function is to drive the drilling tool to break the rock at the bottom of the hole and to lower or lower the drilling tool into the hole, thereby revealing underground geological conditions and mineral resources. However, in extreme environments with strong winds and heavy snow in extremely cold regions, current technologies mostly involve setting up drilling rigs in sheds or shelters. These sheds need to be assembled on the construction site, which creates problems for overall transportation and construction. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] This utility model provides a polar chamber-type drilling rig, which aims to solve the problem of inconvenience in transportation and construction when using drilling rigs in polar environments.

[0005] (II) Technical Solution

[0006] To solve the above problems, this utility model provides a polar housing-type drilling rig, which includes: a housing, a support assembly, a mast assembly, and a power head;

[0007] The support assembly, the mast assembly, and the power head are all located inside the housing, and the top of the housing has an openable window;

[0008] The bracket assembly includes: a fixed plate, a support frame, and a drive cylinder. The fixed plate is disposed inside the housing, the support frame is fixedly disposed on the fixed plate, and one end of the drive cylinder is hinged to the fixed plate.

[0009] The mast assembly includes a main mast and a drive element. The drive element is located inside the main mast, and the main mast is hinged to the support frame. The other end of the drive cylinder is hinged to the main mast, and the drive cylinder can drive the main mast to rotate. The mast assembly has two states within the housing. When the mast assembly is in the first state, the main mast is located within the housing, and the window is closed. When the mast assembly is in the second state, the window is open, the piston rod in the drive cylinder is extended, the main mast is vertical, and one end of the main mast extends out of the housing through the window.

[0010] The power head is slidably mounted on the main mast, and the power head is connected to the drive element, which can drive the power head to slide along the main mast.

[0011] Preferably, the mast assembly further includes a secondary mast, the main mast being sleeved on the secondary mast, and the secondary mast and the main mast being able to slide relative to each other;

[0012] When the mast assembly is in the first state, the first end of the submast is positioned close to the first end of the main mast, and the second end of the submast is positioned close to the second end of the main mast; when the mast assembly is in the second state, the first end of the submast is positioned close to the second end of the main mast, and the second end of the submast can extend out of the main mast.

[0013] A winch is installed on the fixed plate, and a rolling pulley is installed at the second end of the auxiliary mast; when lifting the drill, one end of the steel cable on the winch passes over the pulley and is connected to the drill rod.

[0014] Preferably, the main mast is provided with a guide rail along its length, the cross-section of the guide rail is rectangular, a guide slider is slidably disposed inside the guide rail, and the guide slider is connected to the driving element;

[0015] A sliding plate is slidably mounted on the main mast, the sliding plate is connected to the guide slider, and the power head is mounted on the sliding plate.

[0016] Preferably, a first fixing pin hole is provided through the sliding plate, and a second fixing pin hole corresponding to the first fixing pin hole is provided at the first end of the auxiliary mast, wherein the center line of the first fixing pin hole and the center line of the second fixing pin hole are collinear.

[0017] Preferably, a third fixing pin hole is provided through the second end of the main mast, and a fourth fixing pin hole is provided at the first end of the auxiliary mast. When the mast assembly is in the second state, the center lines of the first fixing pin hole and the second fixing pin hole are collinear.

[0018] Preferably, one side of the power head is hinged to the sliding plate, and the other side of the power head is fixedly connected to the sliding plate by fasteners.

[0019] Preferably, the sliding plate is provided with an anti-slip groove, and the bottom of the power head is provided with an anti-slip protrusion. When the power head is fixed on the sliding plate, the bottom of the power head is in contact with the surface of the sliding plate, and the anti-slip protrusion is inserted into the anti-slip groove.

[0020] Preferably, the support assembly further includes a fixing rod; a hook is provided on the main mast, and one end of the fixing rod is hinged to the main mast;

[0021] When the mast assembly is in the first state, the fixing rod is fixedly placed on the hook; when the mast assembly is in the second state, the other end of the fixing rod is fixed to the fixing plate.

[0022] Preferably, a plurality of windows are provided on the top surface of the housing;

[0023] The box is equipped with sleepers for placing drill rods and multiple parallel finger beams, which are located between the top surface of the box and the sleepers.

[0024] Preferably, a connecting door assembly is provided on one side of the housing, the connecting door assembly including a pair of first connecting doors that are rotatably arranged.

[0025] (III) Beneficial Effects

[0026] This invention mounts the power head onto the main mast, which is then rotatably mounted onto the support assembly. The rotation of the main mast on the support assembly allows the mast assembly to switch between a first state and a second state. In the first state, the main mast is slightly tilted, allowing both the main mast and the power head to be quickly installed inside the housing for easy transport. During operation, in the second state, one end of the main mast extends out of the housing through a window. Drilling operations can then be performed simply by driving the hydraulic cylinder to rotate the main mast to a vertical position, facilitating construction. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the polar chamber-type drilling rig of this utility model;

[0028] Figure 2 This is a schematic diagram of the assembly of the support assembly, mast assembly, and power head inside the housing in this utility model;

[0029] Figure 3 This is an assembly diagram of the bracket assembly, mast assembly, and power head in this utility model;

[0030] Figure 4 This is an exploded view of the bracket assembly, mast assembly, and power head in this utility model;

[0031] Figure 5 This is a schematic diagram of the power head structure in this utility model;

[0032] Figure 6 This is a schematic diagram of the mast assembly in the second state of this utility model.

[0033] [Explanation of Labels in the Attached Image]

[0034] 1: Box body; 10: Window; 11: Finger beam; 12: Sleeper; 13: First connecting door;

[0035] 2: Support assembly; 21: Fixing plate; 211: Winch; 22: Support frame; 23: Drive cylinder; 24: Fixing rod;

[0036] 3: Mast assembly; 31: Main mast; 311: Guide rail; 312: Guide slider; 313: Sliding plate; 314: First fixing pin hole; 315: Third fixing pin hole; 317: Anti-slip groove; 316: Hook; 32: Drive element; 33: Secondary mast; 331: Pulley; 332: Second fixing pin hole; 333: Fourth fixing pin hole;

[0037] 4: Power head; 41: Anti-slip protrusion. Detailed Implementation

[0038] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0040] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] This utility model provides a polar-type chamber drilling rig, which includes: a housing 1, a support assembly 2, a mast assembly 3, and a power head 4. The support assembly 2, the mast assembly 3, and the power head 4 are all located inside the housing 1, and the top of the housing 1 has an openable window 10.

[0043] The bracket assembly 2 includes a fixed plate 21, a support frame 22, and a drive cylinder 23. The fixed plate 21 is disposed inside the housing 1, the support frame 22 is fixedly disposed on the fixed plate 21, and one end of the drive cylinder 23 is hinged to the fixed plate 21.

[0044] Mast assembly 3 includes: a main mast 31 and a drive element 32, the drive element 32 being located inside the main mast 31, the main mast 31 being hinged to the support frame 22; the other end of a drive cylinder 23 is hinged to the main mast 31, and the drive cylinder 23 can drive the main mast 31 to rotate; the mast assembly 3 has two states within the housing 1, such as... Figure 1 and Figure 2 As shown, when the mast assembly 3 is in the first state, the main mast 31 is located inside the housing 1, and the window 10 is closed; as Figure 6 As shown, when the mast assembly 3 is in the second state, the window 10 is open, the piston rod in the drive cylinder 23 is in the extended state, the main mast 31 is in the vertical state, and one end of the main mast 31 extends out of the housing 1 through the window 10.

[0045] The power head 4 is slidably mounted on the main mast 31, and the power head 4 is connected to the drive element 32. The drive element 32 can be a hydraulic cylinder, one end of which is fixed on the main mast 31. The drive element 32 can drive the power head 4 to slide along the main mast 31.

[0046] This invention mounts the power head 4 onto the main mast 31, which is then rotatably mounted onto the support assembly 2. The rotation of the main mast 31 on the support assembly 2 allows the mast assembly 3 to switch between a first state and a second state. When the mast assembly 3 is in the first state, the main mast 31 is in a slightly tilted state, allowing both the main mast 31 and the power head 4 to be installed in the housing 1 for easy transport. During operation, when the mast assembly 3 is in the second state, one end of the main mast 31 can extend out of the housing 1 through the window 10. This means that drilling operations can be performed simply by driving the hydraulic cylinder 23 to rotate the main mast 31 to a vertical position, facilitating construction.

[0047] In the preferred embodiment, the container 1 is a shipping container, and the length of the main mast 31 is less than the length of the shipping container. The height of the container 1 is 2m-2.4m. Due to the limited height of the container 1, it is difficult to meet the usage requirements of the main mast 31 in an upright position. Therefore, by providing an openable window 10, it is possible to avoid obstructing the rotation of the main mast 31. A through hole is provided in the part of the container 1 corresponding to the position of the power head 4, ensuring that the drill rod can drill downwards through the through hole.

[0048] The housing 1 houses a drilling medium circulation device, which includes a drilling fluid circulation assembly for circulating drilling fluid, an air compressor for circulating air, and a manifold for supplying drilling medium to the drilling rig. The manifold is fixed to the inner wall of the housing 1 and includes a first liquid pipeline for supplying drilling fluid, a gas pipeline for supplying air, and valves for switching pipelines. The valves allow switching between different pipelines, selecting either the gas pipeline (suitable for the process) or the first liquid pipeline for supplying liquid. In this embodiment, ball valves are used, but other suitable valves can be selected based on actual conditions.

[0049] The drilling fluid circulation assembly includes a mud tank for storing drilling fluid and a first mud pump for circulating the drilling fluid. The first mud pump pumps the drilling fluid from the mud tank into a first liquid pipeline, which then delivers it to the drill pipe, into the borehole, and then pumps it out of the borehole and back into the mud tank, thus realizing the circulation of the drilling fluid.

[0050] Because the geological drilling environment in extremely cold regions differs from ordinary environments, with ice layers on top and rock layers below, drilling rigs need to employ two combined processes to adapt to this extreme environment: liquid circulation and air circulation. The drilling process includes air drilling and drilling fluid drilling. Due to the environmental advantages of air drilling, it is used when dealing with surface ice layers, and switches to drilling fluid when dealing with rock layers. Therefore, by installing a manifold within housing 1 that simultaneously provides liquid and gas lines, the drilling rig can perform both air pumping and drilling operations, meeting its technological requirements.

[0051] The housing 1 also includes a heating device, which consists of a heating pipe, a second liquid pipeline, and a second mud pump. The heating pipe is located on the side of the housing 1 away from the drilling fluid circulation assembly. The heating pipe and the second liquid pipeline are fixedly installed on the side plate. The second liquid pipeline connects to the second mud pump, which in turn connects to the mud tank. Since the circulating drilling fluid generates significant heat, a radiator is typically required to dissipate the heat. In this embodiment, the second mud pump pumps the high-temperature drilling fluid circulated from the power head 4 in the mud tank into the heating pipe, which is located away from the drilling fluid circulation assembly, for heat dissipation. This eliminates the need for an additional radiator for active cooling; instead, the circulating cooling system simultaneously provides heating within the housing 1 and effectively dissipates heat from the drilling fluid.

[0052] Furthermore, the mast assembly 3 also includes a secondary mast 33, with the main mast 31 sleeved on the secondary mast 33, and the secondary mast 33 and the main mast 31 capable of sliding relative to each other. When the mast assembly 3 is in the first state, the first end of the secondary mast 33 is positioned close to the first end of the main mast 31, and the second end of the secondary mast 33 is positioned close to the second end of the main mast 31; when the mast assembly 3 is in the second state, the first end of the secondary mast 33 is positioned close to the second end of the main mast 31, and the second end of the secondary mast 33 can extend out of the main mast 31. A winch 211 is provided on the fixed plate 21, and a rolling pulley 331 is provided at the second end of the secondary mast 33; when lifting the drill, one end of the steel cable on the winch 211 passes over the pulley 331 and connects to the drill rod.

[0053] In the above scheme, the main mast 31 is fitted onto the auxiliary mast 33. During transportation, the lengths of the main mast 31 and the auxiliary mast 33 can largely overlap, reducing the space occupied in the length direction. In use, the auxiliary mast 33 only needs to extend out of the main mast 31 to the maximum extent to increase the length of the mast assembly 3, which facilitates the hoist 211 to lift the drill bit via the pulley 331 and steel cable.

[0054] Furthermore, the main mast 31 is provided with a guide rail 311 along its length. The cross-section of the guide rail 311 is rectangular. A guide slider 312 is slidably disposed within the guide rail 311 and is connected to the drive element 32. A sliding plate 313 is slidably disposed on the main mast 31 and is connected to the guide slider 312. The power head 4 is disposed on the sliding plate 313. In this design, the drive element 32 is a hydraulic cylinder. One end of the hydraulic cylinder is fixed inside the main mast 31, and both the hydraulic cylinder and the auxiliary mast 33 are located within the guide rail 311. The auxiliary mast 33 is provided with a receiving cavity for accommodating the hydraulic cylinder. When the hydraulic cylinder is fully extended, the piston rod or cylinder sleeve of the hydraulic cylinder is located within the receiving cavity, meaning that the auxiliary mast 33 will not interfere with the movement of the hydraulic cylinder. The guide slider 312 is also provided with a through hole for the auxiliary mast 33 to pass through, meaning that the movement of the guide slider 312 within the main mast 31 will not be interfered with by the auxiliary mast 33.

[0055] In a preferred embodiment, a first fixing pin hole 314 is provided through the sliding plate 313, and a second fixing pin hole 332 corresponding to the first fixing pin hole 314 is provided at the first end of the auxiliary mast 33. The center line of the first fixing pin hole 314 and the center line of the second fixing pin hole are collinear. In the above solution, a pin can be inserted into the first fixing pin hole 314 and the second fixing pin hole 332, and the driving element 32 provides power to drive the auxiliary mast 33 to move along the guide rail 311 inside the main mast 31, so that the first end of the auxiliary mast 33 is close to the second end of the main mast 31, which facilitates drilling operations.

[0056] When the first end of the auxiliary mast 33 approaches the second end of the main mast 31, a third fixing pin hole 315 is provided through the second end of the main mast 31, and a fourth fixing pin hole 333 is provided at the first end of the auxiliary mast 33. When the mast assembly 3 is in the second state, the center lines of the first fixing pin hole 314 and the second fixing pin hole 332 are collinear. By inserting a pin into the third fixing pin hole 315 and the fourth fixing pin hole 333, the main mast 31 and the auxiliary mast 33 can be relatively fixed and will not slip relative to each other. At this time, by pulling out the pin on the sliding plate 313, the power head 4 can slide on the main mast 31 again, ensuring the normal operation of drilling.

[0057] Furthermore, one side of the power head 4 is hinged to the sliding plate 313, and the other side of the power head 4 is fixedly connected to the sliding plate 313 by fasteners. The sliding plate 313 is provided with an anti-slip groove 317, and the bottom of the power head 4 is provided with an anti-slip protrusion 41. When the power head 4 is fixed to the sliding plate 313, the bottom of the power head 4 is in contact with the surface of the sliding plate 313, and the anti-slip protrusion 41 is inserted into the anti-slip groove 317. In this design, during drilling, the cooperation of the anti-slip groove 317 and the anti-slip protrusion 41 can prevent the power head 4 from slipping due to the reaction force of the drill rod.

[0058] The support assembly 2 also includes a fixing rod 24; a hook 316 is provided on the main mast 31, and one end of the fixing rod 24 is hinged to the main mast 31. When the mast assembly 3 is in the first state, the fixing rod 24 is fixedly placed on the hook 316; when the mast assembly 3 is in the second state, the other end of the fixing rod 24 is fixed to the fixing plate 21. By providing the hook 316 on the main mast 31, during transportation, the main mast 31 is in the first state, at which time one end of the fixing rod 24 is placed on the hook 316, and the fixing rod 24 is parallel to the main mast 31, which improves space utilization and facilitates transportation; when drilling, the main mast 31 is in a vertical state, at which time the main mast 31, the fixing rod 24 and the support frame 22 form a triangle, and the fixing rod 24 plays the role of fixing the posture of the main mast 31, ensuring the normal progress of drilling.

[0059] Multiple windows 10 are provided on the top surface of the housing 1. Inside the housing 1 are sleepers 12 for placing drill rods. Multiple parallel finger beams 11 are also provided inside the housing 1, located between the top surface of the housing 1 and the sleepers 12. When a drill rod is placed inside the housing 1, it is vertical, with one end resting on the sleeper 12 and positioned between two adjacent finger beams 11 (which are horizontal at this time). The other end of the drill rod extends out of the housing 1 through the window 10. The sleepers 12 are located below the window 10. A connecting door assembly is provided on one side of the housing 1, including a pair of rotating first connecting doors 13. The pair of first connecting doors 13 on the side of the housing 1 facilitates personnel access.

[0060] Finally, it should be noted that the housing also contains a borehole sealing device for polar chamber-type drilling rigs, used in the special environments of extremely cold regions, located at the bottom of the housing. The borehole sealing device adopts a split structure, with nested sealing layers, and can be gradually installed into the borehole as the drilling process is switched, without hindering the drilling process.

[0061] Due to the unique geographical environment of extremely cold regions, the geological structure includes ice and snow layers and rock layers. Drilling requires a composite process: first, air is drilled, then drilling fluid is used. Air drilling is used when drilling through the ice and snow layers; once a certain depth is reached in the rock layers, drilling switches to using aviation kerosene, which is corrosive. By setting up nested sealing pipes, a sealed space for drilling fluid flow is formed from the bottom of the casing to the rock layers inside the borehole. This isolates the ice and snow layers and the junction between them from the outside of the sealing device, ensuring that the oil-based drilling fluid can only flow within the sealed device, preventing it from overflowing onto the surface ice and snow layers and causing environmental pollution.

[0062] It should be understood that the above description of the specific embodiments of this utility model is only for illustrating the technical route and features of this utility model, and its purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. However, this utility model is not limited to the specific embodiments described above. All changes or modifications made within the scope of the claims of this utility model should be covered by the protection scope of this utility model.

Claims

1. An arctic house box rig, characterized in that, The polar chamber-type drilling rig includes: a housing (1), a support assembly (2), a mast assembly (3), and a power head (4); The bracket assembly (2), the mast assembly (3) and the power head (4) are all located inside the housing (1), and the top of the housing (1) has an openable window (10). The bracket assembly (2) includes: a fixed plate (21), a support frame (22) and a drive cylinder (23). The fixed plate (21) is disposed inside the housing (1). The support frame (22) is fixedly disposed on the fixed plate (21). One end of the drive cylinder (23) is hinged to the fixed plate (21). The mast assembly (3) includes a main mast (31) and a drive element (32). The drive element (32) is located inside the main mast (31), and the main mast (31) is hinged to the support frame (22). The other end of the drive cylinder (23) is hinged to the main mast (31), and the drive cylinder (23) can drive the main mast (31) to rotate. The mast assembly (3) has two states inside the housing (1). When the mast assembly (3) is in the first state, the main mast (31) is located inside the housing (1), and the window (10) is closed. When the mast assembly (3) is in the second state, the window (10) is open, the piston rod inside the drive cylinder (23) is in the extended state, the main mast (31) is in the vertical state, and one end of the main mast (31) extends out of the housing (1) through the window (10). The power head (4) is slidably mounted on the main mast (31), and the power head (4) is connected to the drive element (32). The drive element (32) can drive the power head (4) to slide along the main mast (31).

2. The polar house drill rig of claim 1, wherein, The mast assembly (3) also includes a secondary mast (33), the main mast (31) is sleeved on the secondary mast (33), and the secondary mast (33) and the main mast (31) can slide relative to each other; When the mast assembly (3) is in the first state, the first end of the submast (33) is located close to the first end of the main mast (31), and the second end of the submast (33) is located close to the second end of the main mast (31); when the mast assembly (3) is in the second state, the first end of the submast (33) is located close to the second end of the main mast (31), and the second end of the submast (33) can extend out of the main mast (31). A winch (211) is provided on the fixed plate (21), and a pulley (331) that can roll is provided at the second end of the auxiliary mast (33); when the drill is lifted, one end of the steel rope on the winch (211) goes around the pulley (331) and is connected to the drill rod.

3. The polar house drill rig of claim 2, wherein, The main mast (31) is provided with a guide rail (311) along its own length direction. The cross-section of the guide rail (311) is rectangular. A guide slider (312) is slidably arranged inside the guide rail (311). The guide slider (312) is connected to the driving element (32). A sliding plate (313) is slidably disposed on the main mast (31), the sliding plate (313) is connected to the guide slider (312), and the power head (4) is disposed on the sliding plate (313).

4. The polar chamber-type drilling rig as described in claim 3, characterized in that, A first fixing pin hole (314) is provided through the sliding plate (313), and a second fixing pin hole (332) corresponding to the first fixing pin hole (314) is provided at the first end of the auxiliary mast (33). The center line of the first fixing pin hole (314) and the center line of the second fixing pin hole (332) are collinear.

5. The polar chamber-type drilling rig as described in claim 4, characterized in that, The second end of the main mast (31) is provided with a third fixing pin hole (315), and the first end of the auxiliary mast (33) is provided with a fourth fixing pin hole (333). When the mast assembly (3) is in the second state, the center lines of the first fixing pin hole (314) and the second fixing pin hole (332) are collinear.

6. The polar chamber-type drilling rig as described in any one of claims 3-5, characterized in that, One side of the power head (4) is hinged to the sliding plate (313), and the other side of the power head (4) is fixedly connected to the sliding plate (313) by fasteners.

7. The polar chamber-type drilling rig as described in claim 6, characterized in that, The sliding plate (313) is provided with an anti-slip groove (317), and the bottom of the power head (4) is provided with an anti-slip protrusion (41). When the power head (4) is fixed on the sliding plate (313), the bottom of the power head (4) is in contact with the surface of the sliding plate (313), and the anti-slip protrusion (41) is inserted into the anti-slip groove (317).

8. The polar chamber-type drilling rig as described in any one of claims 1-5, characterized in that, The support assembly (2) also includes a fixing rod (24); a hook (316) is provided on the main mast (31), and one end of the fixing rod (24) is hinged to the main mast (31); When the mast assembly (3) is in the first state, the fixing rod (24) is fixedly placed on the hook (316); when the mast assembly (3) is in the second state, the other end of the fixing rod (24) is fixed on the fixing plate (21).

9. The polar chamber-type drilling rig as described in any one of claims 1-5, characterized in that, The top surface of the box (1) is provided with a plurality of windows (10). The box (1) is provided with sleepers (12) for placing drill rods and a number of parallel finger beams (11), the finger beams (11) being located between the top surface of the box (1) and the sleepers (12).

10. The polar chamber-type drilling rig as described in claim 9, characterized in that, A connecting door assembly is provided on one side of the housing (1), the connecting door assembly including a pair of first connecting doors (13) that are rotatably provided.

Images