Top drive connecting mechanism for drilling machine

Abstract

The utility model relates to the technical field of drilling machines, and provides a top drive connecting mechanism for a drilling machine, which is arranged between a derrick of the drilling machine and a top drive device, the top drive device is arranged on the derrick in a lifting manner, and the top drive connecting mechanism is characterized by comprising a lifting wheel and a pull rope, and the lifting wheel is arranged on the top drive device in a relatively rotating manner; one end of the pull rope is connected with the derrick, the other end of the pull rope is used for being connected with a winch, and the lifting wheel moves upwards or downwards by means of winding and unwinding of the pull rope on the winch. According to the technical scheme, the problem that the top drive cannot be disassembled easily, conveniently and rapidly in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling rigs, and in particular to a top drive connection mechanism for a drilling rig. Background Art

[0002] Drilling rigs are widely used in prospecting, railways, highways, bridges, water conservancy and hydropower, tunnels, wells, anchors, small-diameter diamond core rope coring drilling, civil engineering, engineering geological exploration, geothermal drilling, coalbed methane drilling, and anti-burst drilling rigs. The top drive device of the drilling rig is set inside the derrick to directly provide rotational power for the drill rod and control its up and down movement. At present, the lifting of the top drive device is mainly achieved by hydraulics. Its installation method is not convenient for disassembly and assembly, and it is not easy to disassemble the top drive. In addition, during transportation, the top drive is generally installed on the derrick for transportation. The top drive cannot be lifted and lowered, which may cause the height limit of the transport vehicle. Therefore, it is necessary to improve the above method to solve the above problems. Utility Model Content

[0003] The utility model provides a top drive connection mechanism for a drilling rig, which solves the problem in the related art that the top drive cannot be disassembled simply and quickly.

[0004] The technical solution of the utility model is as follows: a top drive connection mechanism for a drilling rig is used to be arranged between a derrick and a top drive device of the drilling rig, and the top drive device is lifted and arranged on the derrick. The key is: it includes:

[0005] A lifting wheel, the lifting wheel being relatively rotatably arranged on the top drive device;

[0006] A pull rope, one end of which is connected to the derrick, and the other end of which is passed around the lifting wheel for connection with the winch, wherein the lifting wheel moves upward or downward by means of the pull rope being retracted and released on the winch.

[0007] It also includes a pulling plate, which is used to be arranged on the top drive device, and the lifting wheel is rotatably arranged on the pulling plate.

[0008] Also includes,

[0009] A positioning seat, wherein the positioning seat is arranged on the top drive device, and the pull plate is plugged into the positioning seat to form a sliding fit;

[0010] A first telescopic mechanism, wherein the first telescopic mechanism is located below the positioning seat, one end of the first telescopic mechanism is connected to the pull plate, and the other end of the first telescopic mechanism is connected to the top drive device.

[0011] It also includes a positioning shaft. A vertical long hole is opened on the pull plate. The positioning shaft is arranged on the positioning seat and forms a sliding fit with the long hole.

[0012] Also includes,

[0013] A positioning sleeve, wherein the positioning sleeve is arranged on the top drive device;

[0014] The support frame, the drilling rig includes a vehicle body, the derrick is arranged on the vehicle body, the support frame is arranged inside the derrick, the support frame is located on a side of the derrick facing the vehicle body, and the end of the support frame is plugged into the positioning sleeve;

[0015] A second telescopic mechanism, one end of the second telescopic mechanism is connected to the support frame, and the other end of the second telescopic mechanism is connected to the top drive device.

[0016] Also includes,

[0017] a third telescopic mechanism, the third telescopic mechanism being located above the positioning sleeve;

[0018] An insert rod is arranged on the third telescopic mechanism, and a group of adjustment holes are arranged at the end of the support frame. All the adjustment holes in the same group are arranged along the length direction of the positioning sleeve. The insert rod passes through the positioning sleeve with the help of the extension of the third telescopic mechanism and is connected with the adjustment holes on the support frame.

[0019] Also includes,

[0020] A support sleeve, wherein the support sleeve is disposed on the positioning sleeve, and one end of the support sleeve is connected to the positioning sleeve;

[0021] A support plate is arranged on the other end of the support sleeve, one end of the third telescopic mechanism is arranged on the support plate, and the insertion rod is arranged on the other end of the third telescopic mechanism and is located inside the support sleeve.

[0022] The number of the support frames is at least two, all of the support frames are arranged along the axial direction of the top drive device, and the ends of the support frames are plugged into the positioning sleeves.

[0023] It also includes a connecting rod, which is arranged between two adjacent support frames.

[0024] There are at least two connecting rods between two adjacent support frames, and all the connecting rods are arranged along the length direction of the support frames.

[0025] The working principle and beneficial effects of the utility model are:

[0026] The top drive device is set on the derrick for lifting. Compared with the method of hydraulically driving the top drive device in the prior art, the utility model uses lifting wheels and pull plates to drive the top drive device to lift and lower. It can not only easily and quickly disassemble the top drive device for maintenance, reduce the downtime of the drilling rig, and improve the overall work efficiency, but also save costs and provide sufficient power.

[0027] The lifting wheel is relatively rotatable and arranged on the top drive; one end of the pull rope is connected to the derrick, and the other end of the pull rope is passed around the lifting wheel to be connected to the winch. The lifting wheel moves up or down with the help of the pull rope on the winch. When the pull rope is released, the lifting wheel descends, driving the top drive to descend synchronously. When the pull rope is retracted to the winch, the lifting wheel rises, driving the top drive to rise synchronously. When the top drive needs to be disassembled for maintenance, the pull plate and the top drive can be disassembled, and then the top drive can be removed from the derrick. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0029] Figure 1 It is a structural schematic diagram of the utility model.

[0030] Figure 2 for Figure 1 A is an enlarged view of the middle image.

[0031] Figure 3 It is a schematic diagram of the connection structure of the lifting wheel, the top drive device and the support frame in the utility model.

[0032] Figure 4 It is a schematic diagram of the connection structure between the support frame and the insertion rod in the utility model.

[0033] In the figure: 1, derrick, 2, top drive device, 3, lifting wheel, 4, pull plate, 5, positioning seat, 6, first telescopic mechanism, 7, long hole, 8, positioning sleeve, 9, support frame, 10, second telescopic mechanism, 11, third telescopic mechanism, 12, insertion rod, 13, adjustment hole, 14, support sleeve, 15, support plate, 16, connecting rod. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0035] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0036] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0037] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0038] Example, see Figure 1~Figure 2 , which is an embodiment of the utility model, proposes a top drive connection mechanism for a drilling rig, which is used to be arranged between the derrick 1 and the top drive device 2 of the drilling rig. The top drive device 2 is set on the derrick 1 for lifting and lowering, and includes a lifting wheel 3 and a pull rope. The lifting wheel 3 is relatively rotatably arranged on the top drive device 2; one end of the pull rope is connected to the derrick 1, and the other end of the pull rope passes around the lifting wheel 3 for connection with the winch. The lifting wheel 3 moves upward or downward with the help of the pull rope on the winch. Lifting wheels 3 are arranged on both sides of the top drive device 2. When the pull rope is released, the lifting wheel 3 descends, driving the top drive device 2 to descend synchronously. When the pull rope is retracted to the winch, the lifting wheel 3 rises, driving the top drive device 2 to rise synchronously through the pull plate 4. The structure is simple and can save costs.

[0039] Furthermore, if Figure 1 , Figure 2 and Figure 3 As shown, it also includes a pull plate 4, which is used to be set on the top drive device 2, and the lifting wheel 3 is connected to the rotation device, and the lifting wheel 3 is rotated relative to the pull plate 4. The lifting wheel 3 is connected to the top drive device 2 by the pull plate 4, which has a simple structure and is easy to disassemble and assemble.

[0040] Furthermore, if Figure 1 and Figure 2As shown, it also includes a positioning seat 5 and a first telescopic mechanism 6. The positioning seat 5 is arranged on the top drive device 2. The pull plate 4 is plugged with the positioning seat 5 to form a sliding fit. The first telescopic mechanism 6 is located below the positioning seat 5. One end of the first telescopic mechanism 6 is connected to the pull plate 4, and the other end of the first telescopic mechanism 6 is connected to the top drive device 2. When the upper and lower positions of the lifting wheel 3 are fixed and the position of the top drive device 2 needs to be adjusted, the position of the pull plate 4 is fixed, and the first telescopic mechanism 6 is telescoped, so that the top drive device 2 moves downward or upward, and the positioning seat 5 moves downward or upward along the pull plate 4. The positioning seat 5 can play a guiding and limiting role.

[0041] Furthermore, if Figure 2 As shown, it also includes a positioning shaft. A vertical long hole 7 is opened on the pull plate 4. The positioning shaft is arranged on the positioning seat 5 and forms a sliding fit with the long hole 7.

[0042] When the lifting wheel 3 is needed to drive the top drive device 2 to rise and fall, the positioning shaft is located at the bottom of the long hole 7, and the pull plate 4 can drive the positioning seat 5 to rise and fall through the positioning shaft, thereby driving the top drive device 2 to rise and fall synchronously.

[0043] When the position of the top drive 2 needs to be adjusted, the upper and lower positions of the lifting wheel 3 are fixed, and the first telescopic mechanism 6 is extended and retracted, so that the top drive 2 moves downward or upward, and the positioning seat 5 moves synchronously, thereby driving the positioning shaft to move synchronously. The positioning shaft slides in the long hole 7, which can play a guiding and limiting role to realize the lifting and lowering of the top drive 2. In addition, the first telescopic mechanism 6 has a built-in encoder, which can drive the top drive 2 to lift and lower while recording the lifting distance, and can accurately locate the height of the top drive 2, and use data to visualize drilling work.

[0044] When the top drive needs to be disassembled for maintenance, the positioning shaft between the pull plate 4 and the positioning seat 5 can be unplugged first, and then the positioning shaft between the first telescopic mechanism 6 and the positioning seat 5 can be unplugged, and the pull plate 4 and the first telescopic mechanism 6 can be disassembled, and then the top drive can be removed from the derrick. In this way, the top drive can be disassembled and repaired simply and quickly, reducing the downtime of the drilling rig and improving the overall work efficiency.

[0045] Furthermore, if Figure 3 and Figure 4 As shown, it also includes a positioning sleeve 8, a support frame 9, and a second telescopic mechanism 10. The positioning sleeve 8 is arranged on the top drive device 2; the drilling rig includes a vehicle body, a derrick 1 is arranged on the vehicle body, and the support frame 9 is arranged in the derrick 1. The support frame 9 is located on the side of the derrick 1 facing the vehicle body, and the end of the support frame 9 is plugged into the positioning sleeve 8; one end of the second telescopic mechanism 10 is connected to the support frame 9, and the other end of the second telescopic mechanism 10 is connected to the top drive device 2.

[0046] When the derrick 1 is laid down on the vehicle body, in order to prevent part of the structure of the top drive device 2 from protruding outside the derrick 1, the second telescopic mechanism 10 is retracted, thereby driving the top drive device 2 and the positioning sleeve 8 to move toward the support frame 9, so that the top drive device 2 is close to the vehicle body, until the top drive device 2 completely reaches the inside of the derrick 1, the second telescopic mechanism 10 stops working, which can avoid the problem of super height during transportation. When the drilling rig needs to work, the second telescopic mechanism 10 is extended, thereby driving the top drive device 2 and the positioning sleeve 8 to move away from the support frame 9, so that the top drive device 2 is away from the vehicle body until the top drive device 2 returns to its initial position. The structure is simple, the operation is convenient and fast, and it saves time and effort. The second telescopic mechanism 10 is hinged to the support frame 9, and the second telescopic mechanism 10 is also hinged to the positioning sleeve 8, which is simpler and more convenient to disassemble and assemble.

[0047] Furthermore, if Figure 3 and Figure 4 As shown, it also includes a third telescopic mechanism 11 and an insertion rod 12. The third telescopic mechanism 11 is located above the positioning sleeve 8. The insertion rod 12 is arranged on the third telescopic mechanism 11. A group of adjustment holes 13 is arranged at the end of the support frame 9. All the adjustment holes 13 of the same group are arranged along the length direction of the positioning sleeve 8. The insertion rod 12 passes through the positioning sleeve 8 with the help of the extension of the third telescopic mechanism 11 and is connected with the adjustment holes 13 on the support frame 9.

[0048] After the top drive device 2 is moved to the desired position by the extension and retraction of the second telescopic mechanism 10, the second telescopic mechanism 10 stops working, and then the third telescopic mechanism 11 is extended to push the insertion rod 12 to move toward the support frame 9, so that the lower end of the insertion rod 12 passes through the positioning sleeve 8 and is plugged into the adjustment hole 13 on the support frame 9, and the support frame 9 is locked in the current position, which is more firm and reliable.

[0049] Furthermore, if Figure 3 and Figure 4 As shown, it also includes a support sleeve 14 and a support plate 15. The support sleeve 14 is arranged on the positioning sleeve 8, and one end of the support sleeve 14 is connected to the positioning sleeve 8; the support plate 15 is arranged at the other end of the support sleeve 14, one end of the third telescopic mechanism 11 is arranged on the support plate 15, and the insertion rod 12 is arranged at the other end of the third telescopic mechanism 11 and is located inside the support sleeve 14. When the derrick 1 is in a vertical state, the support sleeve 14 is located above the positioning sleeve 8, the lower end of the support sleeve 14 is connected to the positioning sleeve 8, the support plate 15 is arranged at the upper end of the support sleeve 14, the third telescopic mechanism 11 is arranged on the support plate 15, and the insertion rod 12 is hidden inside the support sleeve 14. After the insertion rod 12 passes downward through the top of the positioning sleeve 8, it can be plugged into the adjustment hole 13 on the support frame 9, and the overall structure is more neat and beautiful. The support plate 15 and the support sleeve 14 are detachably connected, which is convenient for disassembly and maintenance of the third telescopic mechanism 11.

[0050] Furthermore, if Figure 3 As shown, there are at least two support frames 9, all of which are arranged along the axial direction of the top drive device 2, and the ends of the support frames 9 are plugged into the positioning sleeves 8. A second telescopic mechanism 10 is provided between each support frame 9 and the top drive device 2, and the plurality of second telescopic mechanisms 10 and the support frames 9 together support the top drive device 2, and the stability is better.

[0051] Furthermore, if Figure 3 As shown, it also includes a connecting rod 16, which is arranged between two adjacent support frames 9. The connecting rod 16 is used to connect the two upper and lower adjacent support frames 9 together, so that the overall strength is higher and the stability is better.

[0052] Furthermore, if Figure 3 As shown, there are at least two connecting rods 16 between two adjacent support frames 9, and all the connecting rods 16 are arranged along the length direction of the support frame 9. Multiple connecting rods 16 work together to connect two upper and lower adjacent support frames 9 together, making the connection more firm and reliable, with higher strength and better stability.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A top drive connection mechanism for a drilling rig, used to be arranged between a derrick (1) and a top drive device (2) of the drilling rig, wherein the top drive device (2) is arranged on the derrick (1) in a lifting manner, and characterized in that: include, A lifting wheel (3), the lifting wheel (3) being relatively rotatably arranged on the top drive device (2); a pull rope, one end of which is connected to the derrick (1), and the other end of which is passed around the lifting wheel (3) for connection to a winch, the lifting wheel (3) moving upward or downward by means of the pull rope being retracted and extended on the winch; A pulling plate (4), the pulling plate (4) being used to be arranged on the top drive device (2), and the lifting wheel (3) being rotatably arranged on the pulling plate (4).

2. The top drive connection mechanism for a drilling rig according to claim 1, characterized in that: Also includes, A positioning seat (5), the positioning seat (5) being arranged on the top drive device (2), the pulling plate (4) being plugged into the positioning seat (5) to form a sliding fit; A first telescopic mechanism (6), the first telescopic mechanism (6) is located below the positioning seat (5), one end of the first telescopic mechanism (6) is connected to the pull plate (4), and the other end of the first telescopic mechanism (6) is connected to the top drive device (2).

3. The top drive connection mechanism for a drilling rig according to claim 2, characterized in that: It also comprises a positioning shaft. A vertical long hole (7) is opened on the pull plate (4). The positioning shaft is arranged on the positioning seat (5) and forms a sliding fit with the long hole (7).

4. The top drive connection mechanism for a drilling rig according to claim 1, characterized in that: Also includes, A positioning sleeve (8), wherein the positioning sleeve (8) is arranged on the top drive device (2); A support frame (9), the drilling rig comprising a vehicle body, the derrick (1) being arranged on the vehicle body, the support frame (9) being arranged inside the derrick (1), the support frame (9) being located on a side of the derrick (1) facing the vehicle body, and an end of the support frame (9) being plugged into the positioning sleeve (8); A second telescopic mechanism (10), one end of the second telescopic mechanism (10) is connected to the support frame (9), and the other end of the second telescopic mechanism (10) is connected to the top drive device (2).

5. The top drive connection mechanism for a drilling rig according to claim 4, characterized in that: Also includes, A third telescopic mechanism (11), the third telescopic mechanism (11) being located above the positioning sleeve (8); An insertion rod (12), the insertion rod (12) being arranged on the third telescopic mechanism (11), a group of adjustment holes (13) being arranged at the end of the support frame (9), all the adjustment holes (13) in the same group being arranged along the length direction of the positioning sleeve (8), the insertion rod (12) passing through the positioning sleeve (8) with the help of the extension of the third telescopic mechanism (11) and then plugged into the adjustment holes (13) on the support frame (9).

6. The top drive connection mechanism for a drilling rig according to claim 5, characterized in that: Also includes, A support sleeve (14), the support sleeve (14) being arranged on the positioning sleeve (8), one end of the support sleeve (14) being in communication with the positioning sleeve (8); A support plate (15), the support plate (15) being arranged at the other end of the support sleeve (14), one end of the third telescopic mechanism (11) being arranged on the support plate (15), and the insertion rod (12) being arranged at the other end of the third telescopic mechanism (11) and being located inside the support sleeve (14).

7. The top drive connection mechanism for a drilling rig according to claim 4, characterized in that: The number of the support frames (9) is at least two, and all of the support frames (9) are arranged along the axial direction of the top drive device (2), and the ends of the support frames (9) are plugged into the positioning sleeves (8).

8. The top drive connection mechanism for a drilling rig according to claim 7, characterized in that: It also comprises a connecting rod (16), wherein the connecting rod (16) is arranged between two adjacent support frames (9).

9. The top drive connection mechanism for a drilling rig according to claim 8, characterized in that: The number of the connecting rods (16) between two adjacent support frames (9) is at least two, and all of the connecting rods (16) are arranged along the length direction of the support frames (9).

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