Fixing device for shaft coal uncovering drilling machine

Abstract

The utility model discloses a shaft coal uncovering drilling machine fixing device which comprises a cement terrace formed by pouring at the bottom of a shaft, a sleeper, a steel structural part, an anchor rod and a chain block, the steel structural part comprises a plurality of annular structures with gradually increased radiuses, and the anchor rod is fixed in the cement terrace. The anchor rods are located on the inner side and the outer side of the annular structure and connected with the annular structure, the sleepers are located between the steel structural part and the cement terrace, the sleepers are arranged in the radial direction of the annular structure in the length direction, the multiple sleepers are in a divergent shape, and the drilling machine is connected to the steel structural part through the chain block. The drilling machine has the advantages that stable installation of the drilling machine can be achieved, and follow-up drilling work is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of underground coal mine drilling, in particular to a shaft coal drilling rig fixing device. Background Art

[0002] As a drilling construction in a special environment, the drilling construction in the wellbore has the problems of relatively small on-site space, no fixed roof, and poor working environment. The traditional way to fix the drilling rig is to construct a cement floor at the center of the bottom of the wellbore, and construct a ground anchor on the cement floor to fix the drilling rig, which leads to low stability of the drilling rig. During the drilling process, the drilling rig moves, causing problems such as deviation in the drilling position. In addition, the lines on the cement floor are messy, which is not conducive to on-site construction.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to ordinary technicians in this field. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to solve the problem that the current shaft coal drilling rig is limited by the small space in the shaft and causes the poor stability of the drilling rig.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A shaft coal drilling rig fixing device includes a cement floor cast at the bottom of the shaft, sleepers, steel structures, anchor rods, and hand winches, wherein the steel structures include multiple annular structures with gradually increasing radius, the anchor rods are fixed in the cement floor, the anchor rods are located on the inner and outer sides of the annular structures and are connected to the annular structures, the sleepers are located between the steel structures and the cement floor, the length direction of the sleepers are arranged along the radial direction of the annular structure, and multiple sleepers are in a divergent shape, and the drilling rig is connected to the steel structure through a hand winch.

[0007] In the utility model, the drilling rig is fixed on the steel structure, and the bottom of the steel structure is connected to the sleepers. The sleepers increase the bearing area and have a large friction coefficient. The combination of the steel structure and the sleepers can improve the connection reliability between the drilling rig and the bottom. At the same time, the steel structure is annular and the sleepers are arranged radially, and the two form a cross structure, so that the stability of the entire connection structure is high. Finally, the drilling rig is installed on the steel structure by a hand chain hoist. The utility model can achieve stable installation of the drilling rig and ensure subsequent drilling work.

[0008] Preferably, the cement floor is at least 0.5 meters thick, the middle part of the cement floor is low and the surrounding parts are high, and the slope of the cement floor is at least 3°.

[0009] Preferably, the sleepers include a plurality of main sleepers and auxiliary sleepers, the main sleepers extend from the center of the steel structure to the outside of the steel structure, the main sleepers are arranged in a circular array, and the auxiliary sleepers are located below one or more annular structures and between adjacent main sleepers.

[0010] Preferably, the sleeper height is at least 300 mm.

[0011] Preferably, the steel structure is made of I-beam.

[0012] Preferably, the steel structure comprises four annular structures, which are arranged concentrically, and each of the annular structures is formed by welding multiple sections of I-beams.

[0013] Preferably, a plurality of groups of connection holes are included along the circumferential direction of the annular structure, the connection holes of the steel structure are connected to the anchor rods through anchor chains, and the drilling rig is connected to the connection holes of the steel structure through a hand chain hoist.

[0014] The connection holes serve as the connection between the steel structure and the anchor rod, and can also be used as holes for the lines to pass through, so that the lines can pass between the steel structures, reducing the accumulation of lines on the surface affecting the construction, making the top surface of the steel structure clean and tidy, which is conducive to construction.

[0015] Preferably, the maximum radius of the steel structure is at least 4.5 m.

[0016] Preferably, the mainframe of the drilling rig is connected to the steel structure via a hand winch, the oil tank of the drilling rig is placed on a hanging plate or a platform, and the oil tank is connected to the mainframe via an extended oil pipe.

[0017] The utility model arranges the oil tank and the main engine separately, which can save the area on the top of the steel structure. Only the drilling rig is located on the top of the steel structure. The equipment on the top of the steel structure is simple and convenient for construction.

[0018] Preferably, it also includes a large plate, which is fixedly connected to the steel structure.

[0019] The large slabs make it easier for construction workers to walk.

[0020] The advantages of the utility model are:

[0021] (1) In the utility model, the drilling rig is fixed on the steel structure, and the bottom of the steel structure is connected to the sleepers. The sleepers increase the bearing area and have a large friction coefficient. The combination of the steel structure and the sleepers can improve the connection reliability between the drilling rig and the bottom. At the same time, the steel structure is in a ring shape and the sleepers are arranged radially, forming a cross structure, which makes the entire connection structure highly stable. Finally, the drilling rig is installed on the steel structure by a hand winch. The utility model can achieve stable installation of the drilling rig and ensure subsequent drilling work.

[0022] (2) The connection holes serve as the connection between the steel structure and the anchor rod, and can also be used as holes for the lines to pass through, so that the lines can pass through between the steel structure parts, reducing the accumulation of lines on the surface and affecting the construction, making the top surface of the steel structure clean and tidy, which is conducive to construction;

[0023] (3) The utility model arranges the oil tank and the main engine separately, which can save the area on the top of the steel structure. Only the drilling rig is located on the top of the steel structure. The equipment on the top of the steel structure is simple and easy to construct.

[0024] (4) The large slab makes it easier for construction workers to walk. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a top view of a shaft coal drilling rig fixing device according to an embodiment of the utility model;

[0026] Figure 2 It is a side view of a shaft coal drilling rig fixing device according to an embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of the connection hole of the annular structure of the embodiment of the utility model;

[0028] Figure 4 It is a schematic diagram of the positions of the steel structure and the sleepers in the embodiment of the utility model;

[0029] Numbers in the figure:

[0030] 1. Cement floor; 2. Sleepers; 3. Steel structure; 31. Connection hole; 4. Anchor rod; 5. Drilling rig; 51. Main engine; 52. Fuel tank. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Embodiment 1:

[0033] like Figure 1 , Figure 2 , Figure 4As shown, the shaft coal drilling rig fixing device includes a cement floor 1 cast at the bottom of the shaft, sleepers 2, steel structure 3, anchor rods 4, and a hand winch, the steel structure 3 includes a plurality of annular structures with gradually increasing radius, the anchor 4 is fixed in the cement floor 1, the anchor rod 4 is located on the inner and outer sides of the annular structure and connected to the annular structure, the sleepers 2 are located between the steel structure 3 and the cement floor 1, the length direction of the sleepers 2 is arranged along the radial direction of the annular structure, and the plurality of sleepers 2 are divergent, and the main machine 51 of the drilling rig 5 is connected to the steel structure 3 through a hand winch.

[0034] Specifically, a 0.5m thick cement floor 1 is integrally poured on the bottom plate at the bottom of the shaft. The cement floor 1 is high on all sides and low in the middle, showing a downslope shape with a slope of at least 3°, so that the drilling water can flow into the water channel in the center of the shaft. For broken bottom plates, grouting reinforcement of the bottom plate is required. Sleepers 2 and steel structures 3 are placed on the cement floor 1. All anchor rods 4 are of Ф20×2200mm in size. The number of anchor rods 4 is increased depending on the length of the steel structure 3, and the steel structure 3 is locked with an anchor chain. In this embodiment, about 200 anchor rods 4 are constructed.

[0035] The sleepers 2 include a plurality of main sleepers and auxiliary sleepers, wherein the main sleepers extend from the center of the steel structure 3 to the outside of the steel structure 3, and the main sleepers are arranged in a circumferential array, and the auxiliary sleepers are located below one or more annular structures and between adjacent main sleepers. In this embodiment, there are six main sleepers, and the six main sleepers can support all the annular structures, and the main sleepers are a whole sleeper, serving as the main supporting structure. The auxiliary sleepers can only support one annular structure or support two or three annular structures at the same time. The length of the main sleeper can be adapted to be greater than the radius of the steel structure 3. In this embodiment, the height of the sleeper is at least 300mm. Requirements for sleepers 2: Specifications of the main sleepers: width × height × length = 200mm × 200mm × 4000mm, 6 sleepers are required; specifications of the auxiliary sleepers: width × height × length = 200mm × 200mm × 300mm, 24 sleepers are required.

[0036] In this embodiment, the steel structure 3 is made of I-beams. In this embodiment, the steel structure 3 includes four annular structures, which are concentrically arranged and are formed by welding multiple sections of I-beams.

[0037] like Figure 1 As shown, from the inside to the outside, the first circle: radius 0.8m, installed in 2 sections, with a total length of 5m; the second circle: radius 2.1m, installed in 3 sections, with a total length of 13.18m; the third circle: radius 3.3m, installed in 3 sections, with a total length of 20.7m; the fourth circle: radius 4.5m, installed in 4 sections, with a total length of 28.2m.

[0038] like Figure 3As shown, along the circumferential direction of the annular structure, there are multiple groups of connection holes 31. The connection holes 31 of the steel structure 3 are connected to the anchor rod 4 through an anchor chain, and the drilling rig 5 is connected to the connection holes 31 of the steel structure 3 through a hand chain hoist. The connection holes 31 are used as a connection between the steel structure 3 and the anchor rod 4 on the one hand, and can also be used as holes for the lines to pass through, so that the lines pass through between the steel structures 3, reducing the accumulation of the lines on the surface to affect the construction, so that the top surface of the steel structure 3 is clean and tidy, which is conducive to construction. Each group of connection holes 31 has two, the diameter of the connection holes 31 is 70mm, and the center distance between the two connection holes 31 is 150mm; the center distance between each group of connection holes 31 is 920mm.

[0039] This embodiment also includes a large plate, which is fixedly connected to the steel structure 3. The large plate is laid to ensure walking safety: because there is a height difference of about 400mm between the I-beam + sleepers and the bottom plate, there is a certain safety risk when people walk, so it is necessary to lay a large plate on the I-beam for people to walk safely, and the two ends of the large plate need to be fixed with wire to prevent shaking.

[0040] In this embodiment, the drilling rig 5 is fixed on the steel structure 3, and the bottom of the steel structure 3 is connected to the sleeper 2. The sleeper 2 increases the bearing area and has a large friction coefficient. The combination of the steel structure 3 and the sleeper 2 can improve the connection reliability between the drilling rig 5 and the bottom; at the same time, the steel structure 3 is annular and the sleepers 2 are arranged radially, and the two form a cross structure, so that the stability of the entire connection structure is high; finally, the drilling rig 5 is installed on the steel structure 3 by a hand chain hoist. This embodiment can achieve stable installation of the drilling rig and ensure subsequent drilling work.

[0041] Embodiment 2

[0042] like Figure 2 As shown, the main machine 51 of the drilling rig 5 is connected to the steel structure 3 through a hand winch, and the oil tank 52 of the drilling rig 5 is placed on a hanging plate or other platforms, and the oil tank 52 is connected to the main machine 51 through an extended oil pipe.

[0043] In this embodiment, due to the small space on the wellbore site, when multiple drilling rigs are on site, the main engine 51 and the oil tank 52 of the drilling rig 5 are placed separately, and the oil tank 52 is placed on a hanging tray or a special platform, and the oil tank 52 is connected to the main engine 51 by an extended oil pipe. The height of the wellbore is used to make up for the lack of space, but the height difference between the oil tank 52 and the main engine 51 is not allowed to exceed 10m.

[0044] When in use, the drilling rig 5 is placed on the I-beam, and the base of the drilling rig 5 and the I-beam should be placed stably and in close contact. When drilling holes 5, the drilling rig 5 needs to be fixed at the four corners using four hand chain hoists. The hand chain hoist fixation is to tighten one corner of the drilling rig 5 (a column on one side of the drilling rig 5) with one end of the hand chain hoist, and tighten the corresponding I-beam (anchor rod) with the other end to fix the drilling rig 5.

[0045] The ordinary column drilling rig (ZDY3200S) is the main machine for wellbore drilling construction.

[0046] The base of the drilling rig 5 is fixed on the I-beam, and the drilling is carried out in blocks. The principle of drilling holes on the same circle is followed. That is, when one drilling rig 5 is drilling holes in the inner circle block, another drilling rig 5 is drilling holes in the outer circle block, leaving corresponding space between them, so that multiple drilling rigs 5 can work simultaneously. At the same time, the relationship between the drilling rig 5 and the buckets on both sides of the wellbore must be taken into account, and it must be ensured that the bucket on one side can be raised and lowered normally.

[0047] The movement of the wellbore drilling rig 5 mainly uses 4 hand chain hoists used to fix the drilling rig. When moving, the hand chain hoists cannot be completely loosened to prevent the drilling rig from tipping over. Loosen other hoists a little → move the mobile hoist a little → loosen other hoists a little → move the mobile hoist a little, and repeat this process to carry out orderly movement under mutual constraints.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Fixing device for coal drilling rig in shaft, It is characterized in that It includes a cement floor, sleepers, steel structures, anchor rods, and hand winches formed by casting at the bottom of the wellbore. The steel structures include multiple annular structures with gradually increasing radius. The anchor rods are fixed in the cement floor. The anchor rods are located on the inner and outer sides of the annular structures and are connected to the annular structures. The sleepers are located between the steel structures and the cement floor. The length direction of the sleepers is arranged along the radial direction of the annular structure. Multiple sleepers are in a divergent shape. The drilling rig is connected to the steel structure through a hand winch.

2. The shaft coal drilling rig fixing device according to claim 1, It is characterized in that The thickness of the cement floor is at least 0.5 meters, the middle part of the cement floor is low and the surrounding parts are high, and the slope of the cement floor is at least 3°.

3. The shaft coal drilling rig fixing device according to claim 1, It is characterized in that The sleepers include a plurality of main sleepers and auxiliary sleepers, wherein the main sleepers extend from the center of the steel structure to the outside of the steel structure, and the main sleepers are arranged in a circular array, and the auxiliary sleepers are located below one or more annular structures and between adjacent main sleepers.

4. The shaft coal drilling rig fixing device according to claim 1, It is characterized in that The sleeper height is at least 300 mm.

5. The shaft coal drilling rig fixing device according to claim 1, It is characterized in that The steel structure is made of I-beam.

6. The shaft coal drilling rig fixing device according to claim 1, It is characterized in that The steel structure comprises four annular structures, which are arranged concentrically and are formed by welding multiple sections of I-beams.

7. The shaft coal drilling rig fixing device according to claim 1, It is characterized in that A plurality of groups of connection holes are included along the circumferential direction of the annular structure. The connection holes of the steel structure are connected to the anchor rods through anchor chains, and the drilling rig is connected to the connection holes of the steel structure through a hand chain hoist.

8. The shaft coal drilling rig fixing device according to claim 1, It is characterized in that The maximum radius of the steel structure is at least 4.5 m.

9. The shaft coal drilling rig fixing device according to claim 1, It is characterized in that The mainframe of the drilling rig is connected to the steel structure through a hand chain hoist, the oil tank of the drilling rig is placed on a hanging plate or a platform, and the oil tank is connected to the mainframe through an extended oil pipe.

10. The shaft coal drilling rig fixing device according to claim 1, It is characterized in that It also includes a large plate, which is fixedly connected to the steel structure.

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