Drill rod stabilizing device

Abstract

The utility model provides a drill rod stabilizing device and relates to the technical field of drill rod drilling, a first end piece is transversely connected to connecting seats in a sliding mode, a second end piece is transversely connected to the first end piece in a sliding mode, the second end piece is far away from the first end piece installation supporting plate, and the number of the connecting seats and the number of the positioning frame assemblies are two. A drill rod head positioning ring is arranged between the two second end pieces of the positioning frame assembly. Through the arrangement of the positioning frame assembly and the head positioning ring, when the drill rod enters a coal wall, the head positioning ring is limited nearby the drill rod, and the efficiency and the accuracy of drilling and positioning of the head of the drill rod are improved; meanwhile, in the process that equipment advances and a drill rod goes deep into the coal wall, under the action of a spring, a supporting plate tightly extrudes the surface of the coal wall all the time, friction is increased through an anti-slip strip between the supporting plate and the coal wall, the positioning frame assembly is not prone to sliding and shifting on the surface of the coal wall, it is guaranteed that the position of a head positioning ring is more stable, and the situation that the drill rod swings back and forth is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drill rod drilling technology field, concretely is a drill rod stabilizing device. BACKGROUND

[0002] Drill rod coal mining is to use special drill rod tools to drill coal seams, and through a drilling system to extract coal mines from the ground. Drill rod tools can transmit power to drill bits, and are rod-shaped or tubular parts that enter the borehole with the drill bit. Drill rod coal mining is a new, efficient and environmentally friendly coal mining method, especially suitable for deep coal mining, complex geological conditions or coal seam gas extraction.

[0003] In the existing drilling operation process, the drill rod bit position is always rotating, the drill rod swings back and forth after the drill bit contacts the coal wall, which is not easy to position on the coal wall, reduces the efficiency of the drilling positioning work, and consumes a long time and is not accurate. UTILITY MODEL CONTENT

[0004] The utility model discloses a drill rod stabilizing device to solve the above problems in the prior art, i.e., the drill rod bit position is always rotating, the drill rod swings back and forth after the drill bit contacts the coal wall, which is not easy to position on the coal wall, reduces the efficiency of the drilling positioning work, and consumes a long time and is not accurate.

[0005] To achieve the above object, the utility model provides the following technical scheme: a drill rod stabilizing device, comprising a connecting seat, a positioning frame assembly and a drill rod head positioning ring, the positioning frame assembly comprises a first end piece, a second end piece and a supporting plate, the first end piece is transversely slidably connected to the connecting seat, the second end piece is transversely slidably connected to the first end piece, the second end piece is provided with the supporting plate away from the first end piece, the connecting seat and the positioning frame assembly are provided with two groups, and the drill rod head positioning ring is arranged between the two groups of second end pieces of the positioning frame assembly.

[0006] Preferably, the positioning frame assembly further comprises a spring and a limiting rod, one end of the spring is connected to the second end piece, the other end of the spring is connected to the first end piece, one end of the limiting rod is fixedly connected to the second end piece, and the other end of the limiting rod is insertedly connected to the first end piece and penetrates through the through hole of the first end piece.

[0007] Preferably, the side surface of the supporting plate away from the second end piece is provided with an antiskid strip.

[0008] Preferably, the first end piece is transversely slidably connected to the connecting seat through a supporting assembly, the supporting assembly comprises a fixed rod piece, a movable rod piece and a fixed piece, the fixed rod piece is fixedly connected to the connecting seat, the movable rod piece is fixedly connected to the first end piece, and the fixed rod piece is insertedly connected to the movable rod piece and is provided with the fixed piece at the overlapping position.

[0009] Preferably, the drill rod body limiting assembly is installed between the first end pieces of the two positioning frame assemblies, the drill rod body limiting assembly comprises a sleeve and a drill rod sleeve, the sleeve connects the two first end pieces, and the two half-ring drill rod sleeves are spliced into a whole ring, and the whole-ring drill rod sleeve is rotationally connected to the sleeve.

[0010] Preferably, the sleeve comprises an outer ring, a second connecting frame and an inner ring, the two sides of the outer ring are fixedly connected to the first end pieces through the second connecting frame, the outer ring is sleeved on the circumferential side of the inner ring, and the inner ring is rotationally connected to the inner side of the outer ring; the outer diameter of the whole-ring drill rod sleeve is matched with the inner diameter of the inner ring, and the drill rod sleeve is fixedly connected to the inner ring.

[0011] Preferably, the side of the drill rod sleeve is provided with a second outer edge outside the port, the same side of the inner ring is provided with a first outer edge outside the port, and the second outer edge is screw-fixed with the first outer edge.

[0012] Preferably, the drill rod sleeve is internally provided with an antiskid pad.

[0013] Compared with the prior art, the drill rod stabilizing device has the following beneficial effects:

[0014] The positioning frame assembly and the head positioning ring are arranged, the head positioning ring is located at a position beyond the end of the drill rod for the drill rod with a large length and a short drilling depth, the head positioning ring is positioned near the drill rod when the drill rod enters the coal wall, the efficiency and accuracy of the drilling positioning of the head of the drill rod are improved, the spring is used to always tightly press the supporting plate against the surface of the coal wall, the antiskid strip between the supporting plate and the coal wall increases the friction, the positioning frame assembly is not easy to slide and deviate on the surface of the coal wall, the position of the head positioning ring is more stable, the head positioning ring not only stably positions the head of the drill rod but also positions the rod body of the drill rod which is continuously deepened, and the back-and-forth swinging of the drill rod is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the drill rod stabilizing device.

[0016] Figure 2 It is a structural schematic view of the supporting assembly.

[0017] Figure 3 It is a positioning frame assembly structure schematic view of the utility model.

[0018] Figure 4 It is a supporting plate structure schematic view of the utility model.

[0019] Figure 5 It is a drill pipe head positioning ring structure schematic view of the utility model.

[0020] Figure 6 It is a drill pipe body part limiting assembly structure schematic view of the utility model.

[0021] Figure 7 It is a sleeve structure schematic view of the utility model.

[0022] Figure 8 It is a drill pipe outer sleeve structure schematic view of the utility model.

[0023] In the figure: 1, drilling machine; 11, drill pipe; 2, connecting seat; 3, supporting assembly; 31, fixed rod; 32, movable rod; 33, fixed part; 4, positioning frame assembly; 41, first end part; 42, second end part; 43, spring; 44, limiting rod; 45, supporting plate; 451, anti-skid strip; 5, drill pipe head positioning ring; 51, first connecting frame; 6, drill pipe body part limiting assembly; 61, sleeve; 611, outer ring; 612, second connecting frame; 613, inner ring; 6131, first outer edge; 62, drill pipe outer sleeve; 621, anti-skid pad; 622, second outer edge. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] One embodiment provided by the utility model: as Figure 1 shown, a drill pipe stabilizing device, including drilling machine 1, connecting seat 2, supporting assembly 3, positioning frame assembly 4 and drill pipe head positioning ring 5.

[0026] As Figure 1 shown, positioning frame assembly 4 is connected on connecting seat 2 through supporting assembly 3 transversely sliding.

[0027] As Figure 2 and Figure 3As shown, the support assembly 3 includes a fixed rod 31, a movable rod 32, and a fixing member 33, and the positioning frame assembly 4 includes a first end member 41, a second end member 42, a spring 43, a limiting rod 44, and a support plate 45.

[0028] The fixed rod 31 is fixedly connected to the connecting seat 2. The fixed rod 31 is inserted into the movable rod 32 and the fixing member 33 is installed at the overlapping position. The fixed rod 31 is sleeved on the outside of the movable rod 32. The fixing member 33 is threaded to the movable rod 32 and abuts against the movable rod 32 inside the movable rod 32. The movable rod 32 is fixedly connected to the first end piece 41.

[0029] The second end piece 42 is laterally slidably connected to the first end piece 41. One end of the spring 43 is connected to the second end piece 42, and the other end is connected to the first end piece 41. One end of the limiting rod 44 is fixedly connected to the second end piece 42, and the other end is inserted into and connected to the first end piece 41, passing through the through hole of the first end piece 41. A support plate 45 is installed on the second end piece 42 away from the first end piece 41, such as... Figure 4 As shown, an anti-slip strip 451 is provided on the side surface of the tray 45 away from the second end piece 42.

[0030] like Figure 5 As shown, the connecting seat 2, the support component 3 and the positioning frame component 4 are all provided in two sets. The drill rod head positioning ring 5 is installed between the second end pieces 42 of the two sets of positioning frame components 4. The two sides of the drill rod head positioning ring 5 are connected and fixed to the inward side of the two sets of second end pieces 42 through the first connecting frame 51.

[0031] Before drilling in coal mining, the connecting seat 2 is installed on the drilling rig 1, and the two sets of connecting seats 2, support components 3 and positioning frame components 4 are symmetrically distributed around the drill rod 11. Then, the drill rod head positioning ring 5 is installed between the second end pieces 42 of the two sets of positioning frame components 4. The inner diameter of the drill rod head positioning ring 5 is larger than the outer diameter of the drill rod 11, and the drill rod 11 can pass through the drill rod head positioning ring 5. The axis of the drill rod 11 and the axis of the drill rod head positioning ring 5 are on the same line.

[0032] Before use, adjust the support assembly 3 according to the length of the drill rod 11 model and the depth to be drilled. The operator moves the two sets of positioning frame assemblies 4 laterally at the same time. The movable rod 32 will move relative to the fixed rod 31. After determining the relative position of the drill rod head positioning ring 5 and the drill rod 11 between the two sets of positioning frame assemblies 4, the fixing part 33 can be tightened to fix the movable rod 32 and the fixed rod 31, and the position of the drill rod head positioning ring 5 will no longer change.

[0033] When the support plate 45 of the positioning frame assembly 4 is pressed, the spring 43 is compressed, the second end piece 42 moves towards the first end piece 41, and the overall length of the positioning frame assembly 4 becomes smaller. The limiting rod 44 can keep the second end piece 42 from moving laterally relative to the first end piece 41.

[0034] For the specific case of the drill rod 11 used, there are two adjustment modes for the support assembly 3. The first mode is when the selected drill rod 11 is long but the drilling depth is short (less than the variable length of the positioning frame assembly 4). In this case, the support assembly 3 is adjusted so that the head positioning ring 5 is located beyond the end of the drill rod 11. Before drilling, the device is placed close to the coal wall, and the plane of the support plate 45 is attached to the coal wall. The head positioning ring 5 is close to the coal wall. When the device advances to start drilling, the head generally swings widely due to the long drill rod 11. However, in this case, the head positioning ring 5 is positioned near the coal wall while the drill rod 11 is entering the coal wall, increasing the efficiency and accuracy of the head of the drill rod 11 in drilling. At the same time, during the process of the device advancing and the drill rod 11 penetrating the coal wall, the support plate 45 is always tightly pressed against the surface of the coal wall under the action of the spring 43. In addition, the anti-skid strip 451 between the support plate 45 and the coal wall increases the friction, making it difficult for the positioning frame assembly 4 to slide and deviate on the surface of the coal wall, ensuring that the position of the head positioning ring 5 is more stable. The head positioning ring 5 not only stabilizes the head of the drill rod 11, but also limits the body of the drill rod 11 that is continuously penetrating, reducing the back-and-forth swinging of the drill rod.

[0035] The second mode is when the drill rod 11 is required to drill to a long depth (greater than the variable length of the positioning frame assembly 4). In this case, the support assembly 3 is adjusted so that the head positioning ring 5 is located on the body of the drill rod 11. When the drill rod 11 drills into the coal wall, the head positioning ring 5 is positioned in the middle of the body of the drill rod 11, reducing the swinging amplitude of the drill rod 11 and solving the problem of large swinging amplitude of long drill rods in conventional cases. This allows the drill rod 11 to be relatively accurately positioned and drilled into the coal wall. During the process of the drill rod 11 penetrating, the positioning frame assembly 4 continuously approaches the coal wall. When the support plate 45 abuts against the coal wall and is pressed, the connection between the positioning frame assembly 4 and the coal wall makes the head positioning ring 5 more stable, increases the limitation of the swinging of the drill rod 11, and improves the drilling effect.

[0036] Another embodiment of the utility model provides: Figure 6 , Figure 7 and Figure 8As shown, on the basis of the above, the drill rod body limiting assembly 6 can be additionally installed between the first end piece 41 of the two sets of positioning frame assemblies 4, the drill rod body limiting assembly 6 includes a sleeve set 61 and a drill rod sleeve set 62, the sleeve set 61 includes an outer ring 611, a second connecting frame 612 and an inner ring 613, the two sides of the outer ring 611 are fixedly connected to the first end piece 41 through the second connecting frame 612, the outer ring 611 is sleeved on the outer side of the inner ring 613, and the inner ring 613 is rotatably connected to the inner side of the outer ring 611. The outer diameter of the whole ring drill rod sleeve set 62 matches the inner diameter of the inner ring 613, and the drill rod sleeve set 62 is fixedly connected with the inner ring 613. The two sets of half-ring drill rod sleeve sets 62 are spliced into a whole ring, one side of the drill rod sleeve set 62 is provided with a second outer edge 622 outside the port, and the same side of the inner ring 613 is provided with a first outer edge 6131 outside the port. The second outer edge 622 and the first outer edge 6131 are screw-fixed. The drill rod sleeve set 62 matches the outer diameter of the screw rod in shape and size, and the drill rod sleeve set 62 is provided with an anti-skid pad 621 inside.

[0037] Before the installation of the head positioning ring 5, the sleeve set 61 is sleeved on the drill rod 11 near the equipment end through the inner ring 613, the inner diameter of the drill rod sleeve set 62 is a half ring which matches the drill rod 11 in outer diameter, size and shape, and the two sets of drill rod sleeve sets 62 are sleeved on the corresponding positions of the circumferential side of the drill rod 11 which can be connected with the first end piece 41 after the installation of the drill rod body limiting assembly 6, to form a whole ring. The sleeve set 61 is moved and the two sets of combined drill rod sleeve sets 62 are inserted into the inner ring 613 and fixedly connected with the inner ring 613. At this time, the outer ring 611 can rotate relative to the drill rod sleeve set 62. The outer ring 611 is connected between the two sets of first end pieces 41 through the second connecting frame 612. The drill rod body limiting assembly 6 is arranged on the end of the drill rod 11 near the equipment to increase a limiting point again, thereby reducing the swing amplitude of the drill rod 11 as a whole during the drilling process again. Since the connection between the drill rod sleeve set 62 and the drill rod 11 is not only a position limitation in a certain area, but also a fixed connection between the position and the positioning frame assembly 4, the constraint of the position can make the drilling effect of the drill rod 11 more stable and efficient under the condition that the positioning frame assembly 4 is stably supported by the abutting coal wall of the supporting plate 45. The scheme of adding the drill rod body limiting assembly 6 is mainly suitable for the case that the drill rod 11 does not need to be fully inserted into the coal seam but the length of the drill rod 11 is relatively long.

[0038] The above is only the embodiment of the present application, and the common knowledge of specific structure and characteristics in the scheme is not described in detail. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A drill pipe stabilizing device, characterized by: The utility model provides a drilling rod head position ring, including connecting seat (2), positioning frame component (4) and drilling rod head position ring (5), positioning frame component (4) includes first end piece (41), second end piece (42) and supporting plate (45), first end piece (41) is connected on connecting seat (2) and slides laterally, second end piece (42) is connected first end piece (41) and slides laterally, second end piece (42) is installed supporting plate (45) away from first end piece (41), connecting seat (2) is provided with two groups with positioning frame component (4), and the second end piece (42) of two groups of positioning frame component (4) is provided with drilling rod head position ring (5).

2. A drill pipe stabilising device according to claim 1, characterised in that: The utility model provides a drilling rod head position ring, including connecting seat (2), positioning frame component (4) and drilling rod head position ring (5), positioning frame component (4) includes first end piece (41), second end piece (42) and supporting plate (45), first end piece (41) is connected on connecting seat (2) and slides laterally, second end piece (42) is connected first end piece (41) and slides laterally, second end piece (42) is installed supporting plate (45) away from first end piece (41), connecting seat (2) is provided with two groups with positioning frame component (4), and the second end piece (42) of two groups of positioning frame component (4) is provided with drilling rod head position ring (5).

3. A drill pipe stabilizing device according to claim 1, characterized in that: The side surface of the supporting plate (45) away from the second end piece (42) is provided with an anti-skid strip (451).

4. A drill pipe stabilizing device according to claim 1, characterized in that: The first end piece (41) is connected on the connecting seat (2) and slides laterally through the support assembly (3), the support assembly (3) includes a fixed rod (31), a movable rod (32), and a fixed piece (33), the fixed rod (31) is fixedly connected to the connecting seat (2), the movable rod (32) is fixedly connected to the first end piece (41), and the fixed rod (31) is insertedly connected to the movable rod (32) and has the fixed piece (33) installed at the overlapping position.

5. A drill pipe stabilizing device according to claim 1, characterized in that: A drilling rod body limiting assembly (6) is installed between the first end pieces (41) of the two positioning frame components (4), the drilling rod body limiting assembly (6) includes a sleeve (61) and a drilling rod sleeve (62), the sleeve (61) is connected to the two first end pieces (41), and two half-ring drilling rod sleeves (62) are spliced into a whole ring, and the whole-ring drilling rod sleeve (62) is rotationally connected to the sleeve (61).

6. A drill pipe stabilising device according to claim 5, characterised in that: The sleeve (61) includes an outer ring (611), a second connecting frame (612), and an inner ring (613), the outer ring (611) is fixedly connected to the first end piece (41) through the second connecting frame (612) on both sides, the outer ring (611) is sleeved on the outer side of the inner ring (613), the inner ring (613) is rotationally connected to the inner side of the outer ring (611), the outer diameter of the whole-ring drilling rod sleeve (62) matches the inner diameter of the inner ring (613), and the drilling rod sleeve (62) is fixedly connected to the inner ring (613).

7. A drill pipe stabilising device according to claim 6, characterised in that: The side port of the drilling rod sleeve (62) is provided with a second outer edge (622) on the outside, the same side of the inner ring (613) is provided with a first outer edge (6131) on the outside of the port, and the second outer edge (622) and the first outer edge (6131) are screw-fixed.

8. A drill pipe stabilising device according to claim 5, characterised in that: The inside of the drilling rod sleeve (62) is provided with an anti-skid pad (621).

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